Results 1 to 10 of about 2,568,825 (335)

Complement Factor H and Apolipoprotein E Participate in Regulation of Inflammation in THP-1 Macrophages

Frontiers in Immunology, 2018
The alternative pathway (AP) of complement is constantly active in plasma and can easily be activated on self surfaces and trigger local inflammation. Host cells are protected from AP attack by Factor H (FH), the main AP regulator in plasma.
Eija Nissilä, Pipsa Hakala, Katarzyna Leskinen, Angela Roig, Shahan Syed, Kok P. M. Van Kessel, Jari Metso, Carla J. C. De Haas, Päivi Saavalainen, Seppo Meri, Angeliki Chroni, Jos A. G. Van Strijp, Katariina Öörni, Matti Jauhiainen, T. Sakari Jokiranta, Karita Haapasalo   +15 more
doaj   +1 more source

Interaction of complement factor h and fibulin3 in age-related macular degeneration. [PDF]

PLoS ONE, 2013
Age-related macular degeneration (AMD) is a major cause of vision loss. It is associated with development of characteristic plaque-like deposits (soft drusen) in Bruch's membrane basal to the retinal pigment epithelium (RPE).
M Keith Wyatt, Jen-Yue Tsai, Sanghamitra Mishra, Maria Campos, Cynthia Jaworski, Robert N Fariss, Steven L Bernstein, Graeme Wistow   +7 more
doaj   +1 more source

Complement factor H family proteins in their non-canonical role as modulators of cellular functions.

Seminars in Cell and Developmental Biology, 2019
Complement factor H is a major regulator of the alternative pathway of the complement system. The factor H-related proteins are less characterized, but recent data indicate that they rather promote complement activation.
M. Józsi, Andrea E. Schneider, É. Kárpáti, Noémi Sándor   +3 more
semanticscholar   +1 more source

Characterization of Binding Properties of Individual Functional Sites of Human Complement Factor H

Frontiers in Immunology, 2020
Factor H exists as a 155,000 dalton, extended protein composed of twenty small domains which is flexible enough that it folds back on itself. Factor H regulates complement activation through its interactions with C3b and polyanions.
Aftabul Haque, Aftabul Haque, Claudio Cortés, M. N. Alam, M. N. Alam, Maladi Sreedhar, V. Ferreira, M. K. Pangburn   +7 more
semanticscholar   +1 more source

Genetic Risk in Families with Age-Related Macular Degeneration

Ophthalmology Science, 2021
Purpose: To determine the contribution of common and rare genetic risk variants in families with age-related macular degeneration (AMD). Design: Case-control study.
Anita de Breuk, MD, Yara T.E. Lechanteur, MD, PhD, Thomas J. Heesterbeek, MD, PhD, Sascha Fauser, MD, PhD, Caroline C.W. Klaver, MD, PhD, Carel B. Hoyng, MD, PhD, Anneke I. den Hollander, PhD   +6 more
doaj   +1 more source

Functional and structural characterization of mouse Factor H-related B protein unveils a novel dimerization domain shared by FHR-B and FH

Frontiers in Immunology
Factor H-related proteins (FHRs) are found in mice, but their equivalence to human FHRs remains uncertain. This study identifies three FHRs in mouse plasma (FHR-B, FHR-C, and FHR-E) and focuses on characterizing FHR-B.
Adrián Martín-Ambrosio Doménech, Silvia González Sanz, Bárbara Márquez Tirado, Lucia Juana-López, Elena Goicoechea de Jorge, Santiago Rodríguez de Córdoba, Héctor Martín Merinero   +6 more
doaj   +1 more source

Complement-Independent Modulation of Influenza A Virus Infection by Factor H

Frontiers in Immunology, 2020
The complement system is an ancient innate immune defense mechanism that can recognize molecular patterns on the invading pathogens. Factor H, as an inhibitor of the alternative pathway, down-regulates complement activation on the host cell surface ...
Valarmathy Murugaiah, Praveen M. Varghese, Praveen M. Varghese, Soad M. Saleh, Anthony G. Tsolaki, Salman H. Alrokayan, Haseeb A. Khan, Kate S. Collison, Robert B. Sim, Béatrice Nal, Futwan A. Al-Mohanna, Uday Kishore   +11 more
doaj   +1 more source

Functional evaluation of complement factor I variants by immunoassays and SDS-PAGE

Frontiers in Immunology, 2023
Factor I (FI) is an essential regulator of the complement system. Together with co-factors, FI degrades C3b, which inhibits further complement activation.
Alexandra Gerogianni, Alexandra Gerogianni, Laura M. Baas, Dick J. Sjöström, Dick J. Sjöström, Nicole C. A. J. van de Kar, Marit Pullen, Siem J. van de Peppel, Per H. Nilsson, Per H. Nilsson, Lambertus P. van den Heuvel, Lambertus P. van den Heuvel, Lambertus P. van den Heuvel, Lambertus P. van den Heuvel   +13 more
doaj   +1 more source

Variants in Complement Factor H and Complement Factor H-Related Protein Genes, CFHR3 and CFHR1, Affect Complement Activation in IgA Nephropathy [PDF]

Journal of the American Society of Nephrology, 2015
Complement activation is common in patients with IgA nephropathy (IgAN) and associated with disease severity. Our recent genome-wide association study of IgAN identified susceptibility loci on 1q32 containing the complement regulatory protein-encoding genes CFH and CFHR1-5, with rs6677604 in CFH as the top single-nucleotide polymorphism and CFHR3-1 ...
Li, Zhu, Ya-Ling, Zhai, Feng-Mei, Wang, Ping, Hou, Ji-Cheng, Lv, Da-Min, Xu, Su-Fang, Shi, Li-Jun, Liu, Feng, Yu, Ming-Hui, Zhao, Jan, Novak, Ali G, Gharavi, Hong, Zhang   +12 more
openaire   +2 more sources

Atypical hemolytic uremic syndrome : update on the complement system and what is new [PDF]

, 2010
Atypical hemolytic uremic syndrome (aHUS) is a rare disease of microangiopathic hemolytic anemia, thrombocytopenia, and predominant renal impairment. It is characterized by the absence of Shiga toxin-producing bacteria as a triggering factor.
Dickenmann, Michael, Hirt-Minkowski, Patricia, Schifferli, Jürg A.   +2 more
core   +1 more source