Results 61 to 70 of about 8,609 (172)

Expression of Human Thrombomodulin Prevents Early Thrombocytopenia and Thrombotic Microangiopathy in Pig‐to‐Nonhuman Primate Orthotopic Liver Xenotransplantation

open access: yesXenotransplantation, Volume 33, Issue 2, March/April 2026.
Abstract Background Severe thrombocytopenia and coagulation dysregulation remain major barriers to survival in pig‐to‐primate liver xenotransplantation models. Methods Porcine livers with five genetic modifications (GTKO, CMAHKO, β4GalNT2KO, hCD55, and hTBM) were orthotopically transplanted into four Tibetan macaques under two conventional ...
Zhongqiang Zhang   +17 more
wiley   +1 more source

Increased frequency of the null allele at the complement C4b locus in autism [PDF]

open access: yesClinical and Experimental Immunology, 1991
SUMMARY Associations between C4 deficiency and autoimmune disorders have been found over the past several years. Since autism has several autoimmune features, the frequencies of null (no protein produced) alleles at the C4A and C4B loci were studied in 19 subjects with autism and their family members.
R P, Warren   +6 more
openaire   +2 more sources

Evolution of Multivalent Aptamer Corona for High‐Throughput Multiplexed Detection of Multiple Cancers

open access: yesAdvanced Science, Volume 13, Issue 8, 9 February 2026.
A multivalent aptamer corona is evolved via established ProteoFish‐SELEX (systematic evolution of ligands by exponential enrichment) for high‐throughput multiplexed detection of multiple cancers. Clinical validation using multivalent aptamer corona demonstrated high accuracy and specificity in multiplexed detection of ovarian, lung, and colorectal ...
Mengjie Wang   +10 more
wiley   +1 more source

Anti-HLA antibodies with complementary and synergistic interaction geometries promote classical complement activation on platelets

open access: yesHaematologica, 2019
High titers of HLA antibodies are associated with platelet refractoriness, causing poor platelet increments after transfusions in a subset of patients with HLA antibodies.
Maaike Rijkers   +14 more
doaj   +1 more source

Visualization of human C4b-binding protein and its complexes with vitamin K-dependent protein S and complement protein C4b. [PDF]

open access: yesProceedings of the National Academy of Sciences, 1983
C4b-binding protein (C4bp) participates in the regulation of the C3 convertase of the classical pathway of complement. By binding to C4b, which is one of the structural subunits of this enzyme, C4bp accelerates the decay-dissociation of the enzyme and renders C4b susceptible to degradation by factor I (C3b inactivator).
B, Dahlbäck   +2 more
openaire   +2 more sources

A Subset of Pro‐inflammatory CXCL10+ LILRB2+ Macrophages Derives From Recipient Monocytes and Drives Renal Allograft Rejection

open access: yesAdvanced Science, Volume 13, Issue 10, 18 February 2026.
This study uncovers a recipient‐derived monocyte‐to‐macrophage trajectory that drives inflammation during kidney transplant rejection. Using over 150 000 single‐cell profiles and more than 850 biopsies, the authors identify CXCL10+ macrophages as key predictors of graft loss.
Alexis Varin   +16 more
wiley   +1 more source

How Escherichia coli Circumvent Complement-Mediated Killing

open access: yesFrontiers in Immunology, 2017
Complement is a crucial arm of the innate immune response against invading bacterial pathogens, and one of its main functions is to recognize and destroy target cells.
Angela S. Barbosa   +2 more
doaj   +1 more source

Proteomic analysis of small extracellular vesicles from the plasma of patients with hepatocellular carcinoma

open access: yesWorld Journal of Surgical Oncology, 2022
Purpose Liver cancer is one of the most common tumors with the seventh-highest incidence and the third-highest mortality. Many studies have shown that small extracellular vesicles (sEVs) play an important role in liver cancer.
Wei Dong   +9 more
doaj   +1 more source

The insider's perspective: The intracellular complosome and immune cell dynamics in cancer

open access: yesClinical and Translational Medicine, Volume 16, Issue 2, February 2026.
Intracellular complement (complosome) shapes the tumour immune microenvironment. Complosome's role in cancer is underrecognised yet central to tumour immunity. C3/C5‐driven complosome signals rewire T‐cell activation, fate and metabolism. Complosome activity can promote pro‐tumour immune cell function.
Alexandra Bennion   +2 more
wiley   +1 more source

Independent association of serum amyloid P component, protein S, and complement C4b with complement C4b-binding protein and subsequent association of the complex with membranes.

open access: yesJournal of Biological Chemistry, 1990
C4b-binding protein (C4BP) is a large complex assembly of eight subunits that functions as an inhibitor of the complement cascade. A portion of the C4BP in serum exists as a complex with protein S. This study demonstrated that another protein, serum amyloid P component (SAP), also formed a calcium-dependent complex with C4BP.
R A, Schwalbe   +2 more
openaire   +2 more sources

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