• Intracellular antibody-mediated degradation (IAMD) is a neutralization mechanism of intracellular antibody-mediated immunity whereby an effector protein, TRIM21, directs antibody bound virions to the proteasome where they are degraded. (wikipedia.org)
  • The ubiquitin-proteasome pathway is responsible for most eukaryotic intracellular protein degradation. (biomedcentral.com)
  • Previous reports have established that UPP modulates intracellular protein degradation. (dana-farber.org)
  • Because cancer cells proliferate more than normal cells, the rate of protein translation and degradation is also higher in cancer cells. (dana-farber.org)
  • Huntington's disease (HD) is one of nine diseases caused by an expanded polyQ repeat within the affected protein and is hallmarked by intracellular inclusion bodies composed of aggregated N-terminal huntingtin (Htt) fragments and other sequestered proteins. (nih.gov)
  • Ubiquitination of proteins can be a signal for degradation and intracellular localization, but also affects protein activity and protein-protein interactions. (nih.gov)
  • Macroautophagy, hereafter referred to as autophagy, is a lysosomal degradative process that participates in cellular homeostasis by enabling the removal of defective organelles, protein aggregates, or intracellular microorganisms ( 1 ). (frontiersin.org)
  • p62/Sequestosome 1 (p62) is a stress-induced protein that is involved in several different intracellular pathways, including regulation of aspects of protein degradation. (molvis.org)
  • Cellular stresses and abnormalities of protein and organelle degradation have been implicated in the pathogenesis of cataracts of many different etiologies. (molvis.org)
  • Redistribution assay technology relies on the imaging and quantification of intracellular protein translocation. (genengnews.com)
  • Are there multiple proteolytic pathways contributing to c-Fos, c-Jun and p53 protein degradation in vivo? (cnrs.fr)
  • An intracellular ribonucleolytic protein complex that participates in POSTRANSCRIPTIONAL RNA PROCESSING and RNA DEGRADATION. (bvsalud.org)
  • Unnatural Amino Acid Engineering for Intracellular Delivery of Protein Therapeutics. (bvsalud.org)
  • Autophagy is a conserved catabolic process that eliminates dysfunctional cytosolic biomolecules through vacuole-mediated sequestration and lysosomal degradation. (hindawi.com)
  • Autophagy is a cellular catabolic process that eliminates damaged cell organelles, unfolded proteins, and various intracellular pathogens through lysosomal degradation. (hindawi.com)
  • Autophagy is a well-conserved lysosomal degradation pathway that plays key roles in bacterial infections. (frontiersin.org)
  • (A) xenophagy: selective capture and lysosomal degradation of cytosolic and vacuolar pathogens. (frontiersin.org)
  • Defective autophagy and lysosomal degradation are hallmarks of numerous neurodegenerative disorders. (fu-berlin.de)
  • Autophagy is an evolutionarily conserved cellular degradation pathway involving the digestion of intracellular components via the lysosomal pathway. (mdpi.com)
  • In general, autophagy degrades long-lived damaged intracellular proteins, in contrast to the ubiquitin-proteasome system, which controls the degradation of short-lived proteins [ 2 ]. (hindawi.com)
  • The autophagy machinery targets intracellular pathogens for degradation, modulates inflammation, and participates in adaptive immune responses ( 3 - 5 ). (frontiersin.org)
  • It also acts as a cellular defense mechanism against microorganisms by contributing to both the innate and adaptive immunity, and by eliminating intracellular pathogens (xenophagy). (mdpi.com)
  • Along the same lines, p53 is mostly degraded following the ubiquitin/proteasome pathway and calpains also seem to participate in its degradation. (cnrs.fr)
  • This pathway plays a prominent role in inter- and intracellular communication and subversion can lead to cancer, fibrosis vascular disorders, and immune diseases. (lu.se)
  • Specifically, the multi-enzyme protease 26S proteasome degrades misfolded or redundant proteins, while blockade of the proteasomal degradation pathways results in the accumulation of unwanted proteins and cell death. (dana-farber.org)
  • Several catabolic pathways contribute to their degradation in vivo. (cnrs.fr)
  • In fundamental cell biological processes such as signal transduction, enzymatic activity or intracellular fusion during vesicular transport, a large number of proteins are recruited to and released from the cytoplasmic surface of intracellular membranes (Casey et al. (biologists.com)
  • Vesicular ATPases are intracellular proton pumps that acidify autophagosomes and lysosomes. (fu-berlin.de)
  • Unlike extracellular humoral immune responses, this intracellular mechanism is expressed in most human tissues and is an example of encapsulating immunity as opposed to mere immune surveillance. (wikipedia.org)
  • Intracellular nitrate concentrations exceeded extracellular concentrations by three orders of magnitude. (frontiersin.org)
  • IL-37, a newly found anti-inflammatory cytokine of the IL-1 family, has both extracellular and intracellular functions. (nature.com)
  • Intracellular mature form of IL-37, but not its extracellular form, markedly inhibited migration of multiple kinds of tumor cells through inhibiting Rac1 activation. (nature.com)
  • Furthermore, in the presence of IFN no increased degradation or increased uptake of extracellular apo E was detected. (jci.org)
  • Pulse-chase experiments indicated that IFN reduced the accumulation of extracellular apo E and increased the degradation of intracellular apo E. The inhibitory effect of IFN on apo E production also was observed in human monocyte-derived macrophages. (jci.org)
  • For nucleic acids, they essentially protect it from degradation and aid in intracellular transfection. (umass.edu)
  • 2011). Imidazole-grafted chitosan-mediated gene delivery: In vitro study on transfection, intracellular trafficking and degradation . (up.pt)
  • Since some of the aggregate-forming diatom species store nitrate intracellularly, we explored the fate of intracellular nitrate and its availability for microbial metabolism within anoxic diatom-bacteria aggregates. (frontiersin.org)
  • Intracellular nitrate was used up within 2-3 days after shifting diatom-bacteria aggregates to dark and anoxic conditions. (frontiersin.org)
  • Additionally, it may be expected that intracellular nitrate not converted before the aggregates have settled onto the seafloor could fuel benthic nitrogen transformations. (frontiersin.org)
  • Mechanistically, we demonstrated that WSG induced degradation of TGFβ and EGF receptors via proteasome and lysosome, respectively. (greenmedinfo.com)
  • Enhanced expression of RNase L as a novel intracellular signal generated by NMDA receptors in mouse cortical neurons. (nih.gov)
  • Mechanistically, intracellular mature IL-37 directly bound to the CAAX motif in the C-terminal hypervariable region of Rac1, and then inhibited Rac1 membrane translocation and subsequent downstream signaling. (nature.com)
  • However, the mechanism and its intracellular target are unclear. (nature.com)
  • Moreover, we uncovered a novel mechanism by which IL-37 suppressed tumor cell migration via its intracellular mature form (amino acids 46-218). (nature.com)
  • Together these two reports suggest that a neuronal V0a1-dependent degradation mechanism may be causally linked to Alzheimer pathology. (fu-berlin.de)
  • Furthermore, we discuss the potential significance of the discovery of the neuron-specific degradation mechanism in Drosophila for intracellular degradation defects in Alzheimer Disease. (fu-berlin.de)
  • Thirty-one percent of the diatom-derived nitrate was converted to nitrogen gas, indicating that a substantial fraction of the intracellular nitrate pool of S. marinoi becomes available to the aggregate-associated bacterial community. (frontiersin.org)
  • At physiological levels, ROS can improve cellular activities as they are involved in the control of the chemical balance and synaptic plasticity [ 4 ], whereas an excess amount of ROS can damage the endothelium, leading to alteration of the intracellular reduction-oxidation homeostasis [ 5 ]. (hindawi.com)
  • The fully functional autolysosome then degrades the autolysosomal cargo and releases the degradation products into the cytosol for recycling. (hindawi.com)
  • Studying the ubiquitination pattern of aggregated Htt fragments offers an important possibility to understand Htt degradation and aggregation processes within the cell. (nih.gov)
  • We describe morphologic features of coronavirus that distinguish it from subcellular structures, including particle size range (60-140 nm), intracellular particle location within membrane-bound vacuoles, and a nucleocapsid appearing in cross section as dense dots (6-12 nm) within the particles. (cdc.gov)
  • Given the crucial roles of Rac1 in tumor angiogenesis and metastasis, intracellular mature IL-37 might serve as a potential strategy for the control of Rac1 activity and tumor progression. (nature.com)
  • Stable 15 N isotope incubations under dark and anoxic conditions revealed that axenic S. marinoi is able to reduce intracellular nitrate to ammonium that is immediately excreted by the cells. (frontiersin.org)
  • Cells can be produced en masse, treated to become irreversibly division-arrested, and cryopreserved. (genengnews.com)
  • This Notice of Funding Opportunity (NOFO) encourages research on the biology of high-confidence risk factors associated with complex brain disorders, with a focus on the intracellular, transcellular, and circuit substrates of neural function. (nih.gov)
  • While behavioral paradigms and outcome measures can be incorporated into the research design to facilitate the characterization of intracellular, transcellular, and circuit mechanisms, these are neither required nor expected. (nih.gov)
  • This results in intracellular storage of excess sialyloligosaccharides and is histologically observed as abnormal vacuolization of various cell types. (medscape.com)
  • The timely and irreversible degradation of critical regulators is. (biomedcentral.com)
  • S1P's availability is controlled by the cystic fibrosis transmembrane regulator (CFTR), which acts as a critical bottleneck for intracellular S1P degradation. (lu.se)
  • Moreover, c-Fos, c-Jun and p53 turnovers are regulated upon activation of intracellular signalling cascades. (cnrs.fr)
  • While ROS-dependent modifications are fundamental in transducing intracellular signals controlling pleiotropic functions, imbalanced ROS can cause oxidative damage, eventually leading to many chronic diseases. (hindawi.com)
  • Intracellular transport of human lysosomal alpha-mannosidase and alpha-mannosidosis-related mutants. (medlineplus.gov)
  • In sialidosis, the deficiency of lysosomal alpha- N -acetyl neuraminidase prevents the normal degradation of glycoproteins containing sialic acid residues. (medscape.com)