HLA-DQ Antigens
HLA Antigens
Celiac Disease
HLA-DR Antigens
Antigens, Neoplasm
Antigens, Surface
Antigens, Protozoan
Antigens, Polyomavirus Transforming
Histocompatibility Antigens Class II
Antigens, CD
HLA-D Antigens
HLA-B Antigens
HLA-A Antigens
Antigens, Helminth
Histocompatibility Antigens Class I
Carcinoembryonic Antigen
Antigens, Viral, Tumor
HLA-DR3 Antigen
Histocompatibility Antigens
Receptors, Antigen, T-Cell
HLA-A2 Antigen
Histocompatibility Testing
T-Lymphocytes
Proliferating Cell Nuclear Antigen
Receptors, Antigen, B-Cell
Prostate-Specific Antigen
O Antigens
Molecular Sequence Data
HLA-DR4 Antigen
Antigens, CD8
Antigens, CD15
Enzyme-Linked Immunosorbent Assay
Antigens, Tumor-Associated, Carbohydrate
HLA-DRB1 Chains
Cross Reactions
Immunoglobulin G
Lymphocyte Activation
HLA-DP Antigens
Amino Acid Sequence
Genes, MHC Class II
Antigens, CD3
HLA-C Antigens
Hepatitis B Surface Antigens
Blood Group Antigens
Antibody Specificity
Alleles
Antigens, CD4
B-Lymphocytes
Fluorescent Antibody Technique
Antigens, CD45
Major Histocompatibility Complex
Receptors, Antigen
Hepatitis B Antigens
Antigen-Antibody Reactions
T-Lymphocytes, Cytotoxic
Immunization
Antibody Formation
Antigens, CD1
Antigens, Differentiation
HLA-B8 Antigen
Immune Sera
HLA-B7 Antigen
HLA-B27 Antigen
Genes, MHC Class I
Autoantigens
Class II HLA alleles and hepatitis B virus persistence in African Americans. (1/1046)
Persistence of hepatitis B virus (HBV) infection is likely due to the interplay of the virus and host immune response. Given its critical role in antigen presentation, allelic differences in the HLA complex may affect HBV persistence. In a prospectively followed African American cohort, molecular class I and class II HLA typing was done on 31 subjects with persistent HBV infection and 60 controls who cleared the infection. HBV persistence was significantly associated with two class II alleles, DQA1 *0501 (odds ratio [OR], 2.6; P=.05) and DQB1 *0301 (OR, 3.9; P=.01), the two-locus haplotype consisting of these same two alleles (OR, 3; P=. 005) and the three-locus haplotype, DQA1 *0501, DQB1 *0301, and DRB1 *1102 (OR, 10.7; P=.01). In addition, HBV persistence was associated with class II allelic homozygosity. Several class I associations with persistence were also noted but were not statistically significant after correction for multiple comparisons. These results underscore the importance of the class II-mediated immune response in recovery from HBV infection. (+info)MHC class II gene associations with autoantibodies to U1A and SmD1 proteins. (2/1046)
Autoantibodies against U small nuclear ribonucleoproteins (snRNP) are frequently present in the serum of patients with systemic rheumatic diseases, and have been reported to be associated with HLA-DR and -DQ genes. To better define the role of HLA genes in the production of such antibodies, we studied immunogenetic associations with autoantibodies reacting with U1 RNP, U1A and SmD1 proteins, and synthetic peptides containing immunodominant linear epitopes of these proteins. Only two out of the 15 overlapping peptides of U1A (i.e. peptides 35-58 and 257-282) and three of 11 peptides of SmD1 (i.e. peptides 1-20, 44-67 and 97-119) were significantly recognized by patients' sera selected on the basis of their antibody positivity with RNP in immunodiffusion. The distribution of DRB1, DQB1 and DPB1 alleles among the anti-RNP antibody-positive patients (n = 28) and healthy control subjects was similar. Antibodies against U1A (tested in Western immunoblotting with HeLa cell extracts) were positively associated to DRB1*06 allele; antibodies reacting with SmD1 peptide 44-67 were negatively associated to DRB1*02 and DQB1*0602 alleles. No association was found between DPB1 alleles and antibodies reacting with U1A and SmD1 antigens. This first study reporting an association between autoantibodies reacting with U1A and SmD1 proteins (and peptides of these proteins), and immunogenetic markers suggest that the production of antibody subsets directed against different components (or regions of these proteins) bound to the same snRNP particle is associated with distinct MHC class II alleles. (+info)Immune responses against human papillomavirus (HPV) type 16 virus-like particles in a cohort study of women with cervical intraepithelial neoplasia. I. Differential T-helper and IgG responses in relation to HPV infection and disease outcome. (3/1046)
T-helper (Th) cell-dependent IL-2 production and plasma IgG responses to virus-like particles consisting of the human papillomavirus type 16 (HPV-16) major capsid protein L1 (L1-VLP) were determined in patients with cytological evidence of cervical intraepithelial neoplasia (CIN) participating in a non-intervention prospective cohort study. IgG responses were associated with HPV-16 persistence and high-grade CIN lesions, while high frequencies of Th responses were observed in patients with both virus clearance and virus persistence, irrespective of CIN grade. The IgG response was found in conjunction with an IL-2 response to L1-VLP in 87% of the patients. Recognition of the HPV-16 L1 Th epitope (amino acids 311-335) was found to be more closely associated than recognition of L1-VLP as a whole to HPV exposure and CIN development. Among the HPV-16+ patients included in this study, those showing a Th response to amino acids 311-335 were more likely to carry the HLA DRB1*11/DQB1*0301 haplotype, while those showing an IgG response to L1-VLP were more likely to carry DRB1*0101/DQB1*0501. However, neither cell-mediated nor humoral immune responses against HPV-16 L1 appear to be sufficient for the natural control of HPV infection and CIN development. (+info)Major DQ8-restricted T-cell epitopes for human GAD65 mapped using human CD4, DQA1*0301, DQB1*0302 transgenic IA(null) NOD mice. (4/1046)
The 65KD isoform of GAD is considered to be a major target autoantigen in many humans with autoimmune prediabetes or diabetes. The major histocompatibility complex class II allele DQA1*0301, DQB1*0302, which encodes HLA-DQ8, confers susceptibility to type 1 diabetes and occurs in up to 80% of affected individuals. To map T-cell epitopes for GAD65 restricted to the diabetes-associated DQ8 heterodimer, we generated transgenic NOD mice expressing HLA-DQ8 and human CD4 while having the mouse class II gene (IA(beta)) deleted. These mice were immunized with full-length purified recombinant GAD65, and the fine specificity of T-cell responses was mapped by examining recall responses of bulk splenocytes to an overlapping set of 20-mer peptides encompassing the entire GAD65 protein. Four different peptides (P121-140, P201-220, P231-250, and P471-490) gave significant T-cell recall responses. P201-220 and P231-250 have been shown previously to bind DQ8, whereas the other two peptides had been classified as nonbinders. Interestingly, the peptide giving the greatest response (P201-220) encompasses residues 206-220 of GAD65, a region that has been shown to be a dominant T-cell epitope in wild-type IA(g7) NOD mice. Overlap in this T-cell epitope likely reflects structural similarities between DQ8 and IA(g7). The fine specificity of antibody responses in the GAD65-immunized mice was also examined by testing the antisera by enzyme-linked immunosorbent assay (ELISA) against the same overlapping set of peptides. The two dominant B-cell epitopes were P361-380 and P381-400; P121-140 and P471-490 appeared to correspond to both B- and T-cell epitopes. Although the NOD human CD4, DQ8, IA(null) transgenic mice generated in these studies do not develop autoimmune diabetes either spontaneously or after cyclophosphamide treatment, they can be used to map DQ8-restricted T-cell epitopes for a variety of human islet autoantigens. They can also be used to test T-cell-specific reagents, such as fluorescently labeled DQ8 tetramers containing GAD65 peptides or other beta-cell peptides, which we believe will be useful in analyzing human immune responses in diabetic and prediabetic patients. (+info)Inhibition of allorecognition by a human class II MHC-derived peptide through the induction of apoptosis. (5/1046)
The interaction of the T-cell receptor with the major histocomatibility complex (MHC)-peptide complex is central to T-cell activation. Variation in the nature of the peptide bound within the groove of the MHC molecule may result in an altered T-cell response. Because some naturally processed peptides bound within the groove of the class II MHC molecule are derived from the MHC molecules themselves, we studied the inhibitory effects of synthetic class II MHC peptides on alloimmune responses in vitro. Three peptides derived from a highly conserved region of the class II MHC alpha chains inhibited the rat mixed lymphocyte response (MLR) in a dose-dependent manner, with the human HLA-DQA1 peptide also inhibiting the human and mouse MLR. No effect was seen on mitogen-induced T-cell proliferation. HLA-DQA1 inhibited cytolytic T lymphocyte (CTL) generation in a dose-response fashion, with no reduction in preformed CTL killing, suggesting that the inhibitory effect is targeted at CD4(+) T-cell function. Cell-cycle analysis by flow cytometry showed that restimulation of primed T cells in the presence of HLA-DQA1 resulted in increased apoptosis, whereas unstimulated cells were not affected. These data demonstrate that synthetic peptides derived from highly conserved regions of the class II MHC alpha chain can alter CD4(+) T-lymphocyte alloimmune responses in vitro, and this effect is mediated by the induction of apoptosis in activated T cells. (+info)Influence of ethnic background on clinical and serologic features in patients with systemic sclerosis and anti-DNA topoisomerase I antibody. (6/1046)
OBJECTIVE: To investigate the effect of ethnicity on clinical and serologic expression in patients with systemic sclerosis (SSc) and anti-DNA topoisomerase I (anti-topo I) antibody. METHODS: Clinical and serologic features, as well as HLA class II allele frequencies, were compared among 47 North American white, 15 North American black, 43 Japanese, and 12 Choctaw Native American SSc patients with anti-topo I antibody. RESULTS: The frequency of progressive pulmonary interstitial fibrosis was lower, and cumulative survival rates were better in white compared with black and Japanese patients. Sera of white and black patients frequently recognized the portion adjacent to the carboxyl terminus of topo I, sera of Japanese patients preferentially recognized the portion adjacent to the amino terminus of topo I, and sera of Choctaw patients recognized both portions of topo I. Anti-RNA polymerase II and anti-SSA/Ro antibodies were present together with anti-topo I antibody more frequently in sera of Japanese patients than in sera of white patients. The HLA-DRB1 alleles associated with anti-topo I antibody differed; i.e., DRB1*1101-*1104 in whites and blacks, DRB1*1502 in Japanese, and DRB1*1602 in Choctaws. Multivariate analysis showed that ethnic background was an independent determinant affecting development of severe lung disease as well as survival. CONCLUSION: Clinical and serologic features in SSc patients were strongly influenced by ethnic background. The variability of disease expression in the 4 ethnic groups suggests that multiple factors linked to ethnicity, including genetic and environmental factors, modulate clinical manifestations, disease course, and autoantibody status in SSc. (+info)Analysis of MHC class II DP, DQ and DR alleles in Crohn's disease. (7/1046)
BACKGROUND: Although inflammation in Crohn's disease is believed to be mediated by activated T cells, genotyping of all MHC class II alleles in white people with this disease has not been reported. AIMS: To perform a detailed molecular analysis of HLA DPB, DQB, and DRB genes in white patients with Crohn's disease and controls in order to determine if the inheritance of any class II genes confers susceptibility or resistance to this disease. METHODS: Complete molecular typing of HLA class II DPB, DQB, and DRB alleles was performed in 58 white patients with Crohn's disease and 93 healthy controls using a polymerase chain reaction-sequence specific oligonucleotide based approach. RESULTS: No significant association with any DPB or DQB alleles was noted in patients with Crohn's disease. Since our previous studies had shown a strong association of an HLA DRB3*0301/DRB1*1302 haplotype with Crohn's disease, we re-examined this association using more stringent genotyping criteria. This haplotype was present in 20.7% of patients and 5.4% of controls (p = 0.0066; relative risk = 4.59). CONCLUSIONS: The DRB3*0301/DRB1*1302 haplotype is the only significant MHC class II association noted in white people with Crohn's disease and represents the strongest association of any MHC or non-MHC locus with this disease. (+info)Generation of humanized mice susceptible to peptide-induced inflammatory heart disease. (8/1046)
BACKGROUND: Dilated cardiomyopathy (DCM) is a major cause of sudden cardiac death. In certain mouse major histocompatibility complex (MHC) backgrounds, myocarditis and inflammatory cardiomyopathy can be triggered by immunization with heart muscle-specific proteins. Similarly, chronic heart disease in humans has been linked to certain HLA alleles, such as HLA-DQ6. However, there is no experimental evidence showing that human MHC class II molecules and peptides derived from human proteins are involved in the pathogenesis of myocarditis and DCM. METHODS AND RESULTS: We generated double CD4- and CD8-deficient mice transgenic for human CD4 (hCD4) and human HLA-DQ6 to specifically reconstitute the human CD4/DQ6 arm of the immune system in mice. Transgenic hCD4 and HLA-DQ6 expression rendered genetically resistant C57BL/6 mice susceptible to the induction of autoimmune myocarditis induced by immunization with cardiac myosin. Moreover, we identified heart-specific peptides derived from both mouse and human alpha-myosin heavy chains capable of inducing inflammatory heart disease in hCD4 and HLA-DQ6 double transgenic mice but not in hCD4 single transgenic littermates. The autoimmune inflammatory heart disease induced by the human heart muscle-specific peptide in hCD4 and HLA-DQ6 double transgenic mice shared functional and phenotypic features with the disease occurring in disease-susceptible nontransgenic mice. CONCLUSIONS: Our data provide the first genetic and functional evidence that human MHC class II molecules and a human alpha-myosin heavy chain-derived peptide can cause inflammatory heart disease and suggest that human inflammatory cardiomyopathy can be caused by organ-specific autoimmunity. The humanized mice generated in this study will be an ideal animal model to further elucidate the pathogenesis of inflammatory heart disease and facilitate the development of rational treatment strategies. (+info)The primary symptoms of celiac disease include diarrhea, abdominal pain, fatigue, weight loss, and bloating. However, some people may not experience any symptoms at all, but can still develop complications if the disease is left untreated. These complications can include malnutrition, anemia, osteoporosis, and increased risk of other autoimmune disorders.
The exact cause of celiac disease is unknown, but it is believed to be triggered by a combination of genetic and environmental factors. The disease is more common in people with a family history of celiac disease or other autoimmune disorders. Diagnosis is typically made through a combination of blood tests and intestinal biopsy, and treatment involves a strict gluten-free diet.
Dietary management of celiac disease involves avoiding all sources of gluten, including wheat, barley, rye, and some processed foods that may contain hidden sources of these grains. In some cases, nutritional supplements may be necessary to ensure adequate intake of certain vitamins and minerals.
While there is no known cure for celiac disease, adherence to a strict gluten-free diet can effectively manage the condition and prevent long-term complications. With proper management, people with celiac disease can lead normal, healthy lives.
HLA-DQ
HLA-DQ4
DQ2
HLA-DQB2
HLA-DQ6
HLA-DQ5
HLA-DR16
HLA-DQ9
Coeliac disease
HLA-DQ1
HLA-DQ8
HLA DR3-DQ2
HLA A1-B8-DR3-DQ2
HLA-DR4
Forensic DNA analysis
Kikuchi disease
HLA-DR
HLA-DR51
HLA-DQB3
HLA-DQ7
Anti-apolipoprotein antibodies
HLA-DQA2
HLA-DPB1
Gluten immunochemistry
HLA-DQ3
Enteropathy-associated T-cell lymphoma
HLA-DR1
DQ3
HLA-DQB1
DQ4
Chromosome 6
Superantigen
Major histocompatibility complex, class II, DQ alpha 1
HLA B7-DR15-DQ6
Drug reaction with eosinophilia and systemic symptoms
Lupus
Inflammatory demyelinating diseases of the central nervous system
Stevens-Johnson syndrome
Narinder Kumar Mehra
HLA-Cw*16
Monomorphic epitheliotropic intestinal T cell lymphoma
HLA-DR15
Dermatitis herpetiformis
National Kidney Registry
History of polymerase chain reaction
Severe cutaneous adverse reactions
HLA-DQ2
Genome-wide association study of spontaneous resolution of hepatitis C virus infection: data from multiple cohorts
HLA-DQB1 gene: MedlinePlus Genetics
HLA-DQA1 gene: MedlinePlus Genetics
NIOSHTIC-2 Search Results - Basic View
Spark Violet™ 500 anti-human HLA-DR Antibody, HLA-DR, L243
HLA-DQB1 Protein - Creative BioMart
Association of Human Bocavirus 1 Infection with Respiratory Disease in Childhood Follow-up Study, Finland - Volume 18, Number 2...
Viruses | Free Full-Text | The Incorporation of Host Proteins into the External HIV-1 Envelope
DeCS
NIOSHTIC-2 Search Results - Full View
NIH Clinical Center Search the Studies: Study Number, Study Title
Hematopoietic Stem Cell Transplantation (HSCT): Practice Essentials, Historical Background, Indications for HSCT
Alsharhan, H.<...
HLA-DRB1 and HLA-DQB1 genetic diversity modulates response to lithium in bipolar affective disorders | NTU Scholars
Pesquisa | Portal Regional da BVS
JCI -
Methyldopa blocks MHC class II binding to disease-specific antigens in autoimmune diabetes
Obstetrics and Gynecology - Scholarly Output - Augusta University Research Profiles
HLA-DQ
Antigens cd137. Medical search
Human Genome Epidemiology Literature Finder|Home|PHGKB
MeSH Browser
Publication: Quantitation of white cell subpopulations by polymerase chain reaction using …
Human Genome Epidemiology Literature Finder|Home|PHGKB
CIRS: Treatment Pathway Steps | Appalachian Wellness
PPT] - Immunology of Primary Sclerosing Cholangitis John M. Vierling, PowerPoint Presentation - 12317
February | 2016 | CARS signal
T cells in peripheral blood after gluten challenge in coeliac disease. - Immunology
Haplotypes9
- At least two specific combinations of HLA gene variants (HLA haplotypes) have been found to increase the risk of developing celiac disease, a disorder in which inflammation damages the intestinal tract and other organs and tissues. (medlineplus.gov)
- One of these haplotypes, known as DQ2, is composed of the protein produced from HLA-DQB1 gene variants known as HLA-DQB1*02:01 or HLA-DQB1*02:02 bound to the protein produced from HLA-DQA1 gene variants known as HLA-DQA1*05:01 or HLA-DQA1*05:05 . (medlineplus.gov)
- Type 1 diabetes risk is most increased by two HLA haplotypes involving variations of the HLA-DQA1 and HLA-DQB1 genes and another HLA gene called HLA-DRB1 . (nih.gov)
- Other HLA haplotypes only mildly increase the risk of type 1 diabetes, while some haplotypes seem to protect against developing this condition. (nih.gov)
- HLA-DQ1 is a serotype that covers a broad range of HLA-DQ haplotypes. (creativebiomart.net)
- The frequency of HLA-DQ2/DQ8 haplotypes and celiac disease among the first-degree relatives of patients with celiac disease. (cdc.gov)
- Human leukocyte antigen (HLA)-DQ2 and -DQ8 haplotypes in celiac, celiac with type 1 diabetic, and celiac suspected pediatric cases. (cdc.gov)
- Human Leukocyte Antigen DQ (HLA-DQ) genotypes and haplotypes and their association with phenotype in patients with celiac disease in India. (cdc.gov)
- Unfortunately, the CD4+CD25+ "off switch" doesn't always engage, especially in those with susceptible genotypes/haplotypes (based on the Human Leukocyte Antigens (HLA) DR1, DQ, DR3, DR4, DR5. (appwell.net)
Alleles8
- A diabetes-susceptible HLA haplotype is best defined by a combination of HLA-DR and -DQ alleles. (nih.gov)
- Relationship of type 1 diabetes to ancestral proportions and HLA DR/DQ alleles in a sample of the admixed Cuban population. (nih.gov)
- HLA-DQB1 alleles may influence the surface expression of DQ molecules in lymphomononuclear cells of type 1 diabetes mellitus patients. (nih.gov)
- Molecular properties of HLA-DQ alleles conferring susceptibility to or protection from insulin-dependent diabetes mellitus: keys to the fate of islet beta-cells. (nih.gov)
- Here we performed the most extensive study investigating the contribution of HLA alleles (i.e. (nih.gov)
- Researchers have identified hundreds of different versions (alleles) of the HLA-DQB1 gene, each of which is given a particular number (such as HLA-DQB1*06:02 ). (medlineplus.gov)
- 36. Specific overexpression of rheumatoid arthritis-associated HLA-DR alleles and presentation of low-affinity peptides. (nih.gov)
- To better understand the molecular mechanisms underlying this association, we have genetically imputed the classical alleles of the HLA region in the European patients of the ConLiGen cohort. (ntu.edu.tw)
Histocompatibility10
- 1. Varying expression of major histocompatibility complex antigens on human renal endothelium and epithelium. (nih.gov)
- 2. Localization of major histocompatibility complex (HLA-ABC and DR) antigens in 46 kidneys. (nih.gov)
- 5. The immunohistochemical demonstration of major histocompatibility antigens in the human kidney using monoclonal antibodies. (nih.gov)
- 10. [Expression of class I and class II histocompatibility antigens in inflammatory kidney diseases]. (nih.gov)
- 13. Thymoma epithelial cells secrete thymic hormone but do not express class II antigens of the major histocompatibility complex. (nih.gov)
- 15. Sequential analysis of monomorphic and polymorphic major histocompatibility complex antigen expression in human heart allograft biopsy specimens. (nih.gov)
- The HLA complex is the human version of the major histocompatibility complex (MHC), a gene family that occurs in many species. (medlineplus.gov)
- HLA is encoded by genes in the major histocompatibility complex on chromosome 6. (who.int)
- Histocompatibility antigens in a population based silicosis series. (cdc.gov)
- CD8 antigens are members of the immunoglobulin supergene family and are associative recognition elements in MHC (Major Histocompatibility Complex) Class I-restricted interactions. (lookformedical.com)
Loci5
- The involvement of HLA-B62 and HLA-DQ8 in CRPS with dystonia may indicate that these HLA loci are implicated in the susceptibility or expression of the disease. (nih.gov)
- The frequencies of the tested HLA loci were determined by direct counting. (who.int)
- We have studied the incidence of HLA A, B, C, DR and DQ loci antigen in Rh (D) antigen isoimmunized mothers compared to those nonimmunized isoimmunized Rh negative mothers. (ias.ac.in)
- DQ loci are in the "D" region, which encodes DR, DP, and DQ proteins. (chemeurope.com)
- High-resolution genotyping of HLA class I loci in children with type 1 diabetes and celiac disease. (cdc.gov)
Genotypes1
- These children, who carry specific human leukocyte antigen (HLA)-DQ genotypes conferring increased susceptibility to type 1 diabetes, were observed from birth for the appearance of diabetes-associated antibodies and viral infections. (cdc.gov)
Susceptibility1
- The genes that confer actions, are likely to provide important information susceptibility to IDDM are located in the HLA region regarding the causes of IDDM and lead to approaches of chromosome 6. (nih.gov)
Binds5
- The protein produced from the HLA-DQB1 gene attaches (binds) to the protein produced from another MHC class II gene, HLA-DQA1 . (medlineplus.gov)
- Clone L243 binds a conformational epitope on HLA-DRa which depends on the correct folding of the aß heterodimer. (biolegend.com)
- Binds peptides derived from antigens that access the endocytic route of antigen presenting cells (APC) and presents them on the cell surface for recognition by the CD4 T-cells. (nih.gov)
- When antigen binds to the T-cell receptor, the CD3 complex transduces the activating signals to the cytoplasm of the T-cell. (lookformedical.com)
- A membrane glycoprotein and differentiation antigen expressed on the surface of T-cells that binds to CD40 ANTIGENS on B-LYMPHOCYTES and induces their proliferation. (lookformedical.com)
Genes9
- The HLA-DQB1 gene is part of a family of genes called the human leukocyte antigen (HLA) complex. (medlineplus.gov)
- The HLA-DQB1 gene belongs to a group of MHC genes called MHC class II. (medlineplus.gov)
- Most people who have narcolepsy with cataplexy have the HLA-DQB1*06:02 variation, and many also have specific versions of other, closely related HLA genes (including HLA-DQA1 ). (medlineplus.gov)
- However, these variations are very common in the general population, and only a small percentage of people with particular variations in HLA genes develop narcolepsy. (medlineplus.gov)
- HLA genes offer information into the factors driving sarcoidosis and prognosticating tools. (who.int)
- Combinations of variations in the HLA-DQA1 gene and other HLA genes affect the risk of type 1 diabetes. (nih.gov)
- Single institutions or consortia of institutions are invited to participate in a cooperative research group to define the association between human leukocyte antigen (HLA) region genes or genetic markers and immune-mediated diseases, including risk and severity of disease, and organ, tissue, and cell transplantation outcomes. (nih.gov)
- The variants are encoded by the HLA DQ genes and are the result of single nucleotide polymorphisms (SNP). (chemeurope.com)
- Low-Risk Human Leukocyte Antigen Genes and Mild Villous Atrophy Typify Celiac Disease With Immunoglobulin A Deficiency. (cdc.gov)
DQB118
- IL-28B and HLA class II are independently associated with spontaneous resolution of HCV infection, and SNPs marking IL-28B and DQB1*03:01 may explain approximately 15% of spontaneous resolution of HCV infection. (nih.gov)
- The objectives of the present study were to determine whether the month-of-birth pattern would (a) vary with the presence and severity of cataplexy and (b) differ for patients positive and negative for HLA-DQB1*0602. (nih.gov)
- The month-of-birth pattern was similar for HLA-DQB1*0602 positive and negative patients. (nih.gov)
- A March birth and HLA-DQB1*0602 positivity were independent risk factors in a logistic regression analysis. (nih.gov)
- HLA DQB1*0602 is associated with cataplexy in 509 narcoleptic patients. (nih.gov)
- HLA-A, HLA-B, HLA-DRB1, and HLA-DQB1) in 150 CRPS patients who also had fixed dystonia. (nih.gov)
- The HLA-DQB1 gene provides instructions for making a protein that plays a critical role in the immune system. (medlineplus.gov)
- The other haplotype, known as DQ8, is composed of the protein produced from the HLA-DQB1 gene variant known as HLA-DQB1*03:02 bound to the protein produced from HLA-DQA1 gene variants known as HLA-DQA1*03:01 or HLA-DQA1*03:02 . (medlineplus.gov)
- A version of the HLA-DQB1 gene called HLA-DQB1*06:02 increases the risk of developing the sleep disorder narcolepsy, particularly in people who also have cataplexy. (medlineplus.gov)
- It is unclear how HLA-DQB1*06:02 causes this elevated risk. (medlineplus.gov)
- Phenotype frequencies of HLA-A, B and C and DQB1 and DRB1 were calculated for 51 consecutive patients with biopsy-proven sarcoidosis attending the respiratory clinic at Charlotte Maxeke Johannesburg Academic Hospital and 63 controls, who were potential organ donors. (who.int)
- However, the etiology the DQ chain (DQB1*non-Asp-57) are known to be of this disorder remains unclear. (nih.gov)
- HLA-DQB1 involved in several pathways and played different roles in them. (creativebiomart.net)
- We selected most pathways HLA-DQB1 participated on our site, such as Phagosome, Cell adhesion molecules (CAMs), Antigen processing and presentation, which may be useful for your reference. (creativebiomart.net)
- Also, other proteins which involved in the same pathway with HLA-DQB1 were listed below. (creativebiomart.net)
- HLA-DQB1 has several biochemical functions, for example, MHC class II receptor activity, peptide antigen binding. (creativebiomart.net)
- Some of the functions are cooperated with other proteins, some of the functions could acted by HLA-DQB1 itself. (creativebiomart.net)
- The DQα subunit is encoded by the HLA-DQA1 gene and the DQβ subunit is encoded by the HLA-DQB1 gene. (chemeurope.com)
Nuclear antigen7
- HLA-DR/DQ) antigens and proliferative nuclear antigen. (nih.gov)
- Proliferating Cell Nuclear Antigen (PCNA) is an essential protein that participates in a variety of processes of DNA metabolism, including DNA replication and repair, chromatin organization and transcription and sister chromatid cohesion. (eurekaselect.com)
- Tan, E.M. Autoantibody to a nuclear antigen in proliferating cells. (eurekaselect.com)
- Woloschak, G.E. Proliferating cell nuclear antigen (PCNA): ringmaster of the genome. (eurekaselect.com)
- Hübscher, U. Proliferating cell nuclear antigen (PCNA): a dancer with many partners. (eurekaselect.com)
- Cassatella, M.A. Proliferating cell nuclear antigen acts as a cytoplasmic platform controlling human neutrophil survival. (eurekaselect.com)
- Lee, H. Proliferating cell nuclear antigen in the cytoplasm interacts with components of glycolysis and cancer. (eurekaselect.com)
Gene7
- 21. Effects of infliximab therapy on gene expression levels of tumor necrosis factor alpha, tristetraprolin, T cell intracellular antigen 1, and Hu antigen R in patients with rheumatoid arthritis. (nih.gov)
- 31. The MHC class II transactivator (CIITA) mRNA stability is critical for the HLA class II gene expression in myelomonocytic cells. (nih.gov)
- Certain normal variations of the HLA-DQA1 gene have been associated with increased risk of autoimmune disorders, which occur when the immune system malfunctions and attacks the body's own tissues and organs. (nih.gov)
- It is unclear how different versions of the HLA-DQA1 gene influence the risk of developing autoimmune disorders. (nih.gov)
- In the illustration on the right, DQ1 serotyping antibodies recognizes the DQ alpha (magenta), where antibodies to DQA1* gene products bind variable regions close to the peptide binding pocket. (creativebiomart.net)
- In addition 45 unrelated individuals from the same population were typed for HLA DRB and DQB gene using PCR-SSP kits. (ias.ac.in)
- This gene belongs to the HLA class II alpha chain family. (antibodies-online.com)
Molecules5
- 6. In situ characterization of autoimmune phenomena and expression of HLA molecules in the pancreas in diabetic insulitis. (nih.gov)
- In conjunction with the CD3/TCR complex and CD4 molecules, HLA-DR is critical for efficient peptide presentation to CD4 + T cells. (biolegend.com)
- The L243 monoclonal antibody reacts with the HLA-DR antigen, a member of MHC class II molecules. (biolegend.com)
- Exogenous antigens that have been endocytosed by the APC are thus readily available for presentation via MHC II molecules, and for this reason this antigen presentation pathway is usually referred to as exogenous. (nih.gov)
- Class II molecules are expressed in antigen presenting cells (B lymphocytes, dendritic cells, macrophages) and are used to present antigenic peptides on the cell surface to be recognized by CD4 T-cells. (antibodies-online.com)
DRB11
- Alanine or Leucine at position 74 of the HLA-DRB1 heavy chain was associated with a good response while Arginine or Glutamic acid with a poor response. (ntu.edu.tw)
Glycoprotein1
- HLA-DR is a heterodimeric cell surface glycoprotein comprised of a 36 kD α (heavy) chain and a 27 kD β (light) chain. (biolegend.com)
Genetic predisposition1
- The study supported the association of HLA antigens with sarcoidosis and implies that there is a genetic predisposition to sarcoidosis in the SA population. (who.int)
Locus2
- A group of the D-related HLA antigens found to differ from the DR antigens in genetic locus and therefore inheritance. (nih.gov)
- Grupo de antígenos HLA (humanos) relacionados con D que difieren de los antígenos DR en el locus genético, y por tanto en la herencia. (bvsalud.org)
Macrophages3
- 23. Interleukin-10 inhibits the capacity of synovial macrophages to function as antigen-presenting cells. (nih.gov)
- The MHC Class II antigens are found on antigen presenting cells (APC) (macrophages, dendritic cells, and B-lymphocytes). (chemeurope.com)
- Alternatively, macrophages and other megalocytes consume cells by apoptotic signaling and present self-antigens. (chemeurope.com)
Self-antigens2
- HLA DQ functions as a cell surface receptor for foreign or self antigens. (chemeurope.com)
- Self antigens, in the right context, form a suppressor T-cell population that protects self tissues from immune attack or autoimmunity. (chemeurope.com)
Polymorphic3
- These antigens are polymorphic glycoproteins comprising alpha and beta chains and are found on lymphoid and other cells, often associated with certain diseases. (nih.gov)
- We previously identified LB-PTK2B-1T as HLA class II restricted polymorphic antigen in a patient treated with donor lymphocyte infusion for relapsed chronic myeloid leukemia after HLA-matched alloSCT. (haematologica.org)
- We previously identified 5 HLA class II restricted polymorphic antigens as targets for allo-reactive CD4 T cells in a patient with relapsed chronic myeloid leukemia who responded to donor lymphocyte infusion (DLI) after HLA-matched alloSCT. (haematologica.org)
Human17
- There is some evidence that the human leukocyte antigen (HLA) system plays a role in the pathophysiology of CRPS, but previous studies lacked power. (nih.gov)
- 3. Localization of HLA-ABC and DR antigens in human kidney. (nih.gov)
- 4. The distribution of HLA antigens on human corneal tissue. (nih.gov)
- 9. Interferon-gamma modulates HLA class II antigen expression on cultured human thymic epithelial cells. (nih.gov)
- 12. [Kinetics of serum soluble HLA-A, B and DR antigens on human renal allografts]. (nih.gov)
- 17. Zonal variation of HLA expression on human cornea epithelium. (nih.gov)
- 18. Aortic valve allograft structural deterioration is associated with a subset of antibodies to human leukocyte antigens. (nih.gov)
- 33. IL-1 alpha induced, TNF alpha mediated HLA class II (DR) antigen up-regulation in a human ductal breast carcinoma cell line ZR-75-1. (nih.gov)
- Association of human leukocyte antigen donor-recipient matching and pediatric heart transplant graft survival. (musc.edu)
- Effect of human leukocyte antigen-C and -DQ matching on pediatric heart transplant graft survival. (musc.edu)
- A GWAS performed by the International Consortium on Lithium Genetics (ConLiGen) has recently identified genetic markers associated with treatment responses to Li in the human leukocyte antigens (HLA) region. (ntu.edu.tw)
- Find HLA-DQA2 ELISA Kits for a variety of species such as anti-Cow HLA-DQA2, anti-Human HLA-DQA2. (antibodies-online.com)
- HLA-DQA2 Monoclonal antibody specifically detects HLA-DQA2 in Human samples. (fishersci.no)
- Human recombinant protein fragment corresponding to amino acids 24-125 of human HLA-DQA2 (NP_064440) produced in E.coli. (fishersci.no)
- Differentiation antigens expressed on pluripotential hematopoietic cells, most human thymocytes, and a major subset of peripheral blood T-lymphocytes. (lookformedical.com)
- In the human population DQ is highly variable, the β subunit more so than the alpha chain. (chemeurope.com)
- Human Leucocyte Antigen Genotyping in Celiac Disease: Reasons for Inappropriate Use. (cdc.gov)
Celiac disease3
- HLA Genotyping in Romanian Adult Patients with Celiac Disease, their First-degree Relatives and Healthy Persons. (cdc.gov)
- Celiac disease in pediatric patients according to HLA genetic risk classes: a retrospective observational study. (cdc.gov)
- TagSNP approach for HLA risk allele genotyping of Saudi celiac disease patients: effectiveness and pitfalls. (cdc.gov)
Protein4
- Together, they form a functional protein complex called an antigen-binding DQαβ heterodimer. (medlineplus.gov)
- While this mechanism might seemingly imply that host protein incorporation is a passive uptake of all cellular antigens associated with the plasma membrane at the site of budding, this is not the case. (mdpi.com)
- HLA-DQ (DQ) is a cell surface type protein found on antigen presenting cells. (chemeurope.com)
- Others result in changes in regions that are removed when the proteins is processed to the cell surface, still others result in change in the non-functional regions of the protein, and some changes result in a change of function of the DQ isoform that is produced. (chemeurope.com)
Genetics1
- The goal of this RFA is to establish a cooperative research group to conduct research and to generate high quality HLA-disease association data for public use that will be submitted to and maintained by dbMHC, the publically accessible database of MHC genetics housed and maintained by the National Center for Biomedical Information (NCBI) at the National Institutes of Health National Library of Medicine (NLM). (nih.gov)
Proteins3
- The HLA complex helps the immune system distinguish the body's own proteins from proteins made by foreign invaders such as viruses and bacteria. (medlineplus.gov)
- As membrane proteins on their way to degradation in lysosomes as part of their normal turn-over are also contained in the endosomal/lysosomal compartments, exogenous antigens must compete with those derived from endogenous components. (nih.gov)
- As such, proteins targeted in coordinated T- and B-cell responses may represent a class of immunodominant antigens in clinical responses after alloSCT. (haematologica.org)
CD442
- 27. Increased HLA-DR and CD44 antigen expression in the gut: evidence of extraarticular immunological activity in rheumatoid arthritis. (nih.gov)
- CD44 antigens are the principle cell surface receptors for hyaluronate and this interaction mediates binding of lymphocytes to high endothelial venules. (lookformedical.com)
Frequencies1
- No perturbations in D-region antigen frequencies were detected. (cdc.gov)
Heterodimer1
- DQ is made up of two different subunits to form an αβ-heterodimer. (chemeurope.com)
Antibody4
- 37. Endothelial permeability is increased by the supernatant of peripheral blood mononuclear cells stimulated with HLA Class II antibody. (nih.gov)
- They were interviewed for symptoms and occupational history and gave a blood specimen for HLA-A, -B, -DR, and -DQ typing and for antinuclear antibody, immune complexes, immunoglobulins, and rheumatoid factor. (cdc.gov)
- Overcoming HLA-DPB1 donor specific antibody-mediated haematopoietic graft failure. (musc.edu)
- To our knowledge, this is the first description of a coordinated allo-reactive CD4 + T-cell and auto-reactive antibody response against an autosomal antigen. (haematologica.org)
Polymorphism1
- Possible effect of the HLA-DQ2/DQ8 polymorphism on autoimmune parameters and lymphocyte subpopulation in recurrent pregnancy losses. (cdc.gov)
Lymphocyte1
- Costimulatory T-LYMPHOCYTE receptors that have specificity for CD80 ANTIGEN and CD86 ANTIGEN. (lookformedical.com)
Autoantibody1
- We investigated whether islet autoantibody profile, HLA-DQ genotype, and age influenced a 20-year progression to diabetes from first autoantibody positivity (autoAb + ) in first-degree relatives of patients with type 1 diabetes. (diabetesgeneeskunde.nl)
Receptor3
- Complex of at least five membrane-bound polypeptides in mature T-lymphocytes that are non-covalently associated with one another and with the T-cell receptor (RECEPTORS, ANTIGEN, T-CELL). (lookformedical.com)
- The CD3 gamma and delta chains (subunits) are separate from and not related to the gamma/delta chains of the T-cell receptor (RECEPTORS, ANTIGEN, T-CELL, GAMMA-DELTA). (lookformedical.com)
- Normally, these APC 'present' class II receptor/antigens to a great many T-cells, each with unique T-cell receptor (TCR) variants. (chemeurope.com)
Allograft1
- Donor-reactive HLA antibodies in renal allograft recipients: considerations, complications, and conundrums. (musc.edu)
Antibodies in renal1
- 7. Anti-HLA-A, B, C and DR antibodies in renal transplant recipients. (nih.gov)
Complexes2
- A few TCR variants that recognize these DQ/antigen complexes are on CD4 positive (CD4+) T-cells. (chemeurope.com)
- Immune complexes may subsequently be processed and presented by professional antigen presenting cells and stimulate induction of specific CD8 + T cells. (haematologica.org)
Inflammatory1
- As these variants have been implicated in common inflammatory/autoimmune processes, our findings strongly suggest that HLA-mediated low inflammatory background may contribute to the efficient response to Li in BD patients, while an inflammatory status overriding Li anti-inflammatory properties would favor a weak response. (ntu.edu.tw)
Receptors1
- The immune system surveys antigens for foreign pathogens when presented by MHC receptors (like HLA DQ). (chemeurope.com)
19841
- Nomenclature for factors of the HLA system 1984. (ox.ac.uk)
Presentation2
Subunits1
- This region encoded the subunits for DP,-Q and -R which are the major MHC class II antigens in humans. (chemeurope.com)
Cells7
- 19. Classes I and II HLA and melanoma-associated antigen expression and modulation on melanoma cells isolated from primary and metastatic lesions. (nih.gov)
- 22. HLA DR, DQ, and DP antigen expression in rheumatoid synovial cells: a biochemical and quantitative study. (nih.gov)
- Antigens on surfaces of cells, including infectious or foreign cells or viruses. (lookformedical.com)
- Generally found on antigen presenting cells, is an antigen presenting molecule. (chemeurope.com)
- These T-cells, called T-helper cells, can promote the amplification of B-cells which, in turn recognize a different portion of the same antigen. (chemeurope.com)
- During this treatment, patient hematopoiesis is eradicated by high-dose radio-/chemotherapy and the patient is rescued by infusion of hematopoietic stem cells of an (HLA-matched) donor. (haematologica.org)
- 7 Although the capacity of CD4 T cells to stimulate production of antibodies is well-known, and induction of auto- and allo-reactive antibodies after HLA-matched alloSCT has been demonstrated by various studies, 8 - 15 the link between CD4 T- and B-cell immunity after alloSCT has only been demonstrated for DDX3Y, a male specific antigen encoded on the Y-chromosome. (haematologica.org)
Rheumatoid1
- When HLA-susceptible individuals are triggered, the off switch won't properly engage and autoimmunity develops-similar, but different to Systemic Lupus Erythromatosis (SLE), Rheumatoid Arthritis, etc. (appwell.net)
Reactivity1
- CD stands for cluster of differentiation, which refers to groups of monoclonal antibodies that show similar reactivity with certain subpopulations of antigens of a particular lineage or differentiation stage. (lookformedical.com)
Differences1
- Differences in HLA-DR staining of tubules among kidneys. (nih.gov)
Inheritance1
- Thus in the present study it is evident that the inheritance of HLA A3, B17, Cw2 and DR4 increases the relative risk factor by 2.6 times among Indian Rh isoimmunized women. (ias.ac.in)
Chromosome1
- HLA-DQ (DQ) is encoded on the HLA region of chromosome 6, in what was classically known as the "D" antigen region. (chemeurope.com)