Results 11 to 20 of about 844,522 (297)

Complement system part II: role in immunity

Frontiers in Immunology, 2015
The complement system has been considered for a long time as a simple lytic system, aimed to kill bacteria infecting the host organism. Nowadays this vision has changed and it is well accepted that complement is a complex innate immune surveillance ...
Nicolas S. Merle, Remi eNoe, Lise eHalbwachs-Mecarelli1, Veronique eFremeaux-Bacchi, Lubka T. Roumenina   +4 more
doaj   +1 more source

Complement Has Brains—Do Intracellular Complement and Immunometabolism Cooperate in Tissue Homeostasis and Behavior?

Frontiers in Immunology, 2021
The classical liver-derived and serum-effective complement system is well appreciated as a key mediator of host protection via instruction of innate and adaptive immunity.
Natalia Kunz, Claudia Kemper, Claudia Kemper   +2 more
doaj   +1 more source

Complement system part I - molecular mechanisms of activation and regulation

Frontiers in Immunology, 2015
Complement is a complex innate immune surveillance system, playing a key role in defense against pathogens and in host homeostasis. The complement system is initiated by conformational changes in recognition molecular complexes upon sensing danger ...
Nicolas eMerle, Sarah Elizabeth Church, Veronique eFremeaux-Bacchi, Lubka T. Roumenina   +3 more
doaj   +1 more source

Role of Murine Complement Component C5 in Acute in Vivo Infection by Pathogenic Leptospira interrogans

Frontiers in Cellular and Infection Microbiology, 2018
Leptospirosis is considered one of the most important zoonosis worldwide. The activation of the Complement System is important to control dissemination of several pathogens in the host.
Íris A. de Castro, Lorena Bavia, Tatiana R. Fraga, Mariane T. Amano, Leandro C. D. Breda, Adriana P. Granados-Martinez, Ana M. G. da Silva, Silvio A. Vasconcellos, Lourdes Isaac   +8 more
doaj   +1 more source

Highly Sensitive Flow Cytometric Detection of Residual B-Cells After Rituximab in Anti-Neutrophil Cytoplasmic Antibodies-Associated Vasculitis Patients

Frontiers in Immunology, 2020
BackgroundB-cell depletion with rituximab (RTX) is an effective treatment for anti-neutrophil cytoplasmic antibodies (ANCA)-associated vasculitis (AAV) patients.
Laura S. van Dam, Jelle M. Oskam, Sylvia W. A. Kamerling, Eline J. Arends, O. W. Bredewold, Magdalena A. Berkowska, Jacques J. M. van Dongen, Ton J. Rabelink, Cees van Kooten, Y. K. Onno Teng   +9 more
doaj   +1 more source

Progressive IgA Nephropathy Is Associated With Low Circulating Mannan-Binding Lectin–Associated Serine Protease-3 (MASP-3) and Increased Glomerular Factor H–Related Protein-5 (FHR5) Deposition

Kidney International Reports, 2018
IgA nephropathy (IgAN) is characterized by glomerular deposition of galactose-deficient IgA1 and complement proteins and leads to renal impairment. Complement deposition through the alternative and lectin activation pathways is associated with renal ...
Nicholas R. Medjeral-Thomas, Anne Troldborg, Nicholas Constantinou, Hannah J. Lomax-Browne, Annette G. Hansen, Michelle Willicombe, Charles D. Pusey, H. Terence Cook, Steffen Thiel, Matthew C. Pickering   +9 more
doaj   +1 more source

Complementation [PDF]

WormBook, 2005
Mutations in many genes can result in a similar phenotype. Finding a number of mutants with the same phenotype tells you little about how many genes you are dealing with, and how mutable those genes are until you can assign those mutations to genetic loci. The genetic assay for gene assignment is called the complementation test.
openaire   +2 more sources

Efficacy of belimumab combined with rituximab in severe systemic lupus erythematosus: study protocol for the phase 3, multicenter, randomized, open-label Synbiose 2 trial

Trials, 2022
Background Belimumab, an anti-B-cell activating factor antibody, is approved for the treatment of auto-antibody positive systemic lupus erythematosus with a high degree of disease activity.
Mieke van Schaik, Eline J. Arends, Darius Soonawala, Ellen van Ommen, Karina de Leeuw, Maarten Limper, Pieter van Paassen, Tom W. J. Huizinga, René E. M. Toes, Cees van Kooten, Joris I. Rotmans, Ton J. Rabelink, Y. K. Onno Teng   +12 more
doaj   +1 more source

TIGIT-positive circulating follicular helper T cells display robust B-cell help functions: potential role in sickle cell alloimmunization

Haematologica, 2015
T follicular helper cells are the main CD4+ T cells specialized in supporting B-cell responses, but their role in driving transfusion-associated alloimmunization is not fully characterized.
Emmanuelle Godefroy, Hui Zhong, Petra Pham, David Friedman, Karina Yazdanbakhsh   +4 more
doaj   +1 more source

Pathogenic Leptospira Secreted Proteases Target the Membrane Attack Complex: A Potential Role for Thermolysin in Complement Inhibition

Frontiers in Microbiology, 2017
Leptospirosis is a zoonosis caused by spirochetes from the genus Leptospira. This disease is common in tropical and subtropical areas, constituting a serious public health problem.
Thais A. Amamura, Tatiana R. Fraga, Sílvio A. Vasconcellos, Angela S. Barbosa, Lourdes Isaac   +4 more
doaj   +1 more source