Results 1 to 10 of about 1,667,008 (303)

The contribution of the alternative pathway in complement activation on cell surfaces depends on the strength of classical pathway initiation [PDF]

Clinical & Translational Immunology, 2023
Objectives The complement system is an important component of innate immunity. The alternative pathway (AP) amplification loop is considered an essential feed forward mechanism for complement activation.
Esther CW deBoer, Astrid JF Thielen, Jeroen D Langereis, Angela Kamp, Mieke C Brouwer, Nienke Oskam, Marlieke L Jongsma, April J Baral, Robbert M Spaapen, Sacha Zeerleder, Gestur Vidarsson, Theo Rispens, Diana Wouters, Richard B Pouw, Ilse Jongerius   +14 more
doaj   +2 more sources

Thrombotic microangiopathy mediates poor prognosis among lupus nephritis via complement lectin and alternative pathway activation [PDF]

Frontiers in Immunology, 2022
ObjectiveThe pathogenesis of thrombotic microangiopathy (TMA) in lupus nephritis (LN) remains complicated. This study aimed to detect the deposition of complement lectin pathway (LP) and alternative pathway (AP) components in renal tissues, then evaluate
Binshan Zhang, Guolan Xing
doaj   +2 more sources

Mechanisms by which Factor H protects Trypanosoma cruzi from the alternative pathway of complement [PDF]

Frontiers in Immunology
Chagas disease, a chronic disabling disease caused by the protozoan Trypanosoma cruzi, has no standardized treatment or preventative vaccine. The infective trypomastigote form of T.
Smrithi S. Menon, Galia Ramirez-Toloza, Keith L. Wycoff, Sean Ehinger, Jutamas Shaughnessy, Sanjay Ram, Viviana P. Ferreira   +6 more
doaj   +2 more sources

The Complement System and ANCA Associated Vasculitis in the Era of Anti-Complement Drugs

Frontiers in Immunology, 2022
ANCA (anti-neutrophil cytoplasmic antibody)-associated vasculitis (AAV) is the condition in which ANCA, as an autoantibody, is associated with the pathogenesis of vasculitis in small blood vessels, mainly in the ear, nose, throat, kidney, lung, and ...
Yasutaka Kimoto, Takahiko Horiuchi
doaj   +1 more source

The complex formation of MASP-3 with pattern recognition molecules of the lectin complement pathway retains MASP-3 in the circulation

Frontiers in Immunology, 2022
The complement system plays an important role in host defense and is activated via three different activation pathways. We have previously reported that mannose-binding lectin-associated serine protease (MASP)-3, unlike its splicing variant MASP-1 ...
Kohei Kusakari, Takeshi Machida, Yumi Ishida, Tomoko Omori, Toshiyuki Suzuki, Masayuki Sekimata, Ikuo Wada, Teizo Fujita, Hideharu Sekine   +8 more
doaj   +1 more source

The Trypanosoma cruzi enzyme TcGPXI is a glycosomal peroxidase and can be linked to trypanothione reduction by glutathione or tryparedoxin. [PDF]

, 2002
Trypanosoma cruzi glutathione-dependent peroxidase I (TcGPXI) can reduce fatty acid, phospholipid, and short chain organic hydroperoxides utilizing a novel redox cycle in which enzyme activity is linked to the reduction of trypanothione, a parasite ...
Docampo, Flohe, Moreno, Viode, Henderson, Walsh, Krauth-Seigel, Muller, Nogoceke, Tetaud, Wilkinson, Wilkinson, Tetaud, Wilkinson, Boveris, Fairlamb, Mehlotra, Carnieri, Kendall, Kelly, Gibson, Martinez-Calvillo, Kelly, Kelly, Kelly, Cannata, Rutter, Easterby, Gommel, Steinert, Sommer, Opperdoes, Opperdoes, Michels, Parsons, Blattner, Bjornstedt, Sztajer, Horiguchi, Holgren, Fabianek, Shih, Shih, van den Bosch, Subramani, Keller, Singh, Singh, Boveris, Duffieux, Goodman, Knoops, Yamashita, Verdoucq, Seo, Lopez, Krieger   +56 more
core   +4 more sources

Diverse Clinical Presentations of C3 Dominant Glomerulonephritis

Frontiers in Medicine, 2020
C3 dominant immunofluorescence staining is present in a subset of patients with idiopathic immune complex membranoproliferative glomerulonephritis (iMPGN).
Ramy M. Hanna, Ramy M. Hanna, Jean Hou, Huma Hasnain, Farid Arman, Umut Selamet, Umut Selamet, James Wilson, Samuel Olanrewaju, Jonathan E. Zuckerman, Marina Barsoum, Julie M. Yabu, Ira Kurtz, Ira Kurtz   +13 more
doaj   +1 more source

Properdin Is a Key Player in Lysis of Red Blood Cells and Complement Activation on Endothelial Cells in Hemolytic Anemias Caused by Complement Dysregulation

Frontiers in Immunology, 2020
The complement system alternative pathway (AP) can be activated excessively in inflammatory diseases, particularly when there is defective complement regulation.
Jin Y. Chen, Neeti S. Galwankar, Heather N. Emch, Smrithi S. Menon, Claudio Cortes, Joshua M. Thurman, Samuel A. Merrill, Robert A. Brodsky, Viviana P. Ferreira   +8 more
doaj   +1 more source

COMPLEMENT-MEDIATED ADIPOCYTE LYSIS BY NEPHRITIC FACTOR SERA [PDF]

, 1993
Recent data indicate a previously unsuspected link between the complement system and adipocyte biology. Murine adipocytes produce key components of the alternative pathway of complement and are able to activate this pathway.
Lachmann, PJ, Mathieson, PW, Oliveria, DB, Peters, DK, Würzner, R   +4 more
core   +1 more source

The "backdoor pathway" of androgen synthesis in human male sexual development. [PDF]

, 2019
Mammalian sex determination (male versus female) is largely controlled by genes, whereas sex differentiation (development of reproductive structures) is largely controlled by hormones. Work in the 20th century indicated that female external anatomy was a
Auchus, Richard J, Miller, Walter L
core   +2 more sources