In hemodialysis patients planned whole blood transfusions from single donors, induce the formation of anti HLA A, B, C and DR cytotoxic antibodies. The percentage of immunization, however, is lower than that observed in healthy subjects immunized following a similar transfusional schedule. This observation may reflect the existence in some patients of an impairment of the immune response to histocompatibility antigens. The production of lymphocytotoxic antibodies appear to be associated with severe graft rejections while anti HLA antibodies detected only by an indirect rosette assai don't seem to play a significant role in the outcome of the transplants.
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J Exp Clin Cancer Res
January 2025
Hepatology Laboratory, Solid Tumors Program, CIMA, CCUN, University of Navarra, Pamplona, Spain.
Background: Pancreatic ductal adenocarcinoma (PDAC) is a highly aggressive cancer with limited treatment options and a poor prognosis. The critical role of epigenetic alterations such as changes in DNA methylation, histones modifications, and chromatin remodeling, in pancreatic tumors progression is becoming increasingly recognized. Moreover, in PDAC these aberrant epigenetic mechanisms can also limit therapy efficacy.
View Article and Find Full Text PDFJ Struct Biol
January 2025
State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, PR China. Electronic address:
Cryptosporidium has gained much attention as a major cause of diarrhea worldwide. Here, we present the first structure of H-2K complexed with a decapeptide from Cryptosporidium parvum Gp40/15 protein (Gp40/15-VTF10). In contrast to all published structures, the aromatic residue P3-Phe of Gp40/15-VTF10 is anchored in pocket C rather than the canonical Y/F at P5 or P6 reported for octapeptides and nonapeptides.
View Article and Find Full Text PDFMetab Brain Dis
January 2025
Department of Neurology, Oregon Health and Science University, 3181 SW Sam Jackson Park Road, Portland, OR, 97239, USA.
Neuroinflammation and mitochondrial dysfunction are early events in Alzheimer's disease (AD) and contribute to neurodegeneration and cognitive impairment. Evidence suggests that the inflammatory axis mediated by macrophage migration inhibitory factor (MIF) binding to its receptor, CD74, plays an important role in many central nervous system (CNS) disorders such as AD. Our group has developed DRhQ, a novel CD74 binding construct which competitively inhibits MIF binding, blocks macrophage activation and migration into the CNS, enhances anti-inflammatory microglia cell numbers and reduces pro-inflammatory gene expression.
View Article and Find Full Text PDFInvest Ophthalmol Vis Sci
January 2025
Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China.
Purpose: To investigate the role of S100A8/A9 in the pathogenesis of Sjögren's dry eye disease (SjDED) and explore its potential mechanism of action.
Methods: S100A8/A9 expression was determined by western blot and quantitative real-time polymerase chain reaction (qRT-PCR). Tear secretion, corneal fluorescein staining, and hematoxylin and eosin staining were used to evaluate the effect of paquinimod, a S100A8/A9 inhibitor, on dry eye disease in nonobese diabetic (NOD) mice.
Bioeng Transl Med
January 2025
Department of Critical Care Medicine Frontiers Science Center for Disease-related Molecular Network, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University Chengdu Sichuan China.
The major histocompatibility complex class I (MHCI) trafficking signal (MITD) plays a pivotal role in enhancing the efficacy of mRNA vaccines. However, there was a lack of research investigating its efficacy in enhancing immune responses to RNA virus infections. Here, we have developed an innovative strategy for the formulation of mRNA vaccines.
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