• Elevated levels of circulating immune complexes in unfractionated serum were directly detectable during early tumour development although, following serum fractionation, immune complexes were identified at both early and late stages of tumour growth. (nih.gov)
  • It appears to be a polymorphic protein, variant from species to species, barely detectable (if at all) in normal ac cells (except for undifferentiated EC cells), induced by SV4O transformation and, it turns, out , by other forms of oncogeneisis, as well: Jay has found t what is proabaly the a same protein in a host of m neoplastic cells by using antibodies raised against various MCAinduced tumors. (nih.gov)
  • Oral administration in domestic cats causes malignant hepatomas and tumors of the esophagus and kidney. (nih.gov)
  • The present findings suggest that the detection of immune complexes in unfractionated samples of late tumour-bearer serum using a C1q-binding assay is masked by the increasing production of tumour-specific antibodies and by a shift from complement fixing to non-complement-fixing tumour-specific antibodies. (nih.gov)
  • PMID- 214407 TI - Antibodies to Herpes simplex virus types 1 and 2 in patients with squamous-cell carcinoma of uterine cervix in India. (nih.gov)
  • T-cell depletion and reconstitution experiments showed that the effect was absolutely dependent upon the presence in the cultures of T cells from these seropositive donors. (nih.gov)
  • AB - Peripheral blood mononuclear cells from donors of known serological status with respect to EB virus were exposed to the virus in vitro and then cultured at various cell concentrations. (nih.gov)
  • The results strongly suggest that the regression phenomenon is an in vitro expression of long-term T-cell-mediated immunity to EB virus which the large majority, if not all, infected individuals possess. (nih.gov)
  • Characterization of sera from different stages of tumour growth. (nih.gov)
  • AB - Antibody activity to Herpes simplex virus type-1 (HSV-1) and type-2 (HSV-2) was measured by the indirect hemagglutination (IHA) test in sera from 124 women with squamous-cell carcinoma of the uterine cervix, 46 women with non-cervical cancer and 116 matched normal women. (nih.gov)
  • src These could explain the "perinuclear" location of pp60 claimed by Rohrschnieder, since Kasamatsue found antibodues against the proteins in random tumor antisera, but not in normal sera, THE EARLY REGION OF ADENOVIRUS Presentations foa focused on the transcription, Splicing and regulation of ths region and, in the words of no less than Phil Sharp, "bewildering", and certainly provided no d information beariang directly on the main topic of the meeting. (nih.gov)
  • I. Complete regression of virus-induced transformation in cultures of seropositive donor leukocytes. (nih.gov)
  • The confusion may arise from the differmt contexts of testing - growth factors, type of cell infected, mkexx animal used. (nih.gov)
  • Lyt le T (t) remains in the shadows: it may be required only in certain contexts: it may he mimic cell grwwth factors already present in some cells or some contexts. (nih.gov)
  • 23¥&# SV49Q transforemd human cells aren't even tumorigenic in nude mice, Efforts to force the SV40 system into a full analogy with Py have failed, to date, Of course, there is a candidate middle T (dubbed mah "phantom Ty by local talent) proposed o by Berg on the basis of a new splice his troops have found in a late version of early message (clear? (nih.gov)
  • It also appears in normal cells during early G . The protein is phosphorylated and can be precipitated either directly by antisera or by virtue of its apparent ability to bind to T antigen. (nih.gov)
  • In contrast, seropositive donor cultures seeded at the higher cell concentrations developed foci of proliferating EBNA-positive cells within the first 1--2 weeks but thereafter regressed completely and subcultures made after 4 weeks never gave rise to cell lines. (nih.gov)
  • Isolated fractions were examined for their capacity to bind [125I]C1q as a measure of immune complex levels, and for their ability to bind soluble tumour-specific antigen as well as to react with antigens expressed at the surface of viable hepatoma cells. (nih.gov)