Results 61 to 70 of about 976,787 (206)

Resistance to Streptozotocin-Induced Autoimmune Diabetes in Absence of Complement C3: Myeloid-Derived Suppressor Cells Play a Role. [PDF]

open access: yesPLoS ONE, 2013
The contribution of complement to the development of autoimmune diabetes has been proposed recently. The underlying mechanisms, however, remain poorly understood.
Xiaogang Gao   +3 more
doaj   +1 more source

Intracellular Activation of Complement C3 Leads to PD-L1 Antibody Treatment Resistance by Modulating Tumor-Associated Macrophages

open access: yesCancer immunology research, 2018
Intracellular activation of complement C3 by tumor cells was found to suppress CD8+ T-cell responses by modulating tumor-associated macrophages. The data suggest that a combined strategy of PD-L1 blockade with C3 targeting may enhance antitumor immunity.
Haoran Zha   +15 more
semanticscholar   +1 more source

Complement Inactivation by Recombinant Human C3 Derivatives [PDF]

open access: yesThe Journal of Immunology, 2004
Abstract From the implications of the complement system in a large number of diseases, an urgent need for therapeutics effecting reduced complement activity in vivo has emerged. In this study we report the design of a novel class of enzymes of human origin that obliterate functional complement by a noninhibitory, catalytic mechanism ...
Johanna, Kölln   +4 more
openaire   +2 more sources

Complement component C3: A structural perspective and potential therapeutic implications

open access: yesSeminars in Immunology, 2022
As the most abundant component of the complement system, C3 and its proteolytic derivatives serve essential roles in the function of all three complement pathways. Central to this is a network of protein-protein interactions made possible by the sequential proteolysis and far-reaching structural changes that accompany C3 activation.
Geisbrecht, Brian V.   +2 more
openaire   +3 more sources

Kidney Diseases Caused by Complement Dysregulation: Acquired, Inherited, and Still More to Come

open access: yesClinical and Developmental Immunology, 2012
Inherited and acquired dysregulation of the complement alternative pathway plays an important role in multiple renal diseases. In recent years, the identification of disease-causing mutations and genetic variants in complement regulatory proteins has ...
Saskia F. Heeringa, Clemens D. Cohen
doaj   +1 more source

The complement C3 protein family in invertebrates [PDF]

open access: yesInvertebrate Survival Journal, 2011
Complement C3 plays a pivotal role in the innate immune system of mammals as the central component of the complement system essential for its activation mechanism and effecter function.
M Nonaka
doaj   +1 more source

Complement C3 Produced by Macrophages Promotes Renal Fibrosis via IL-17A Secretion

open access: yesFrontiers in Immunology, 2018
Complement synthesis in cells of origin is strongly linked to the pathogenesis and progression of renal disease. Multiple studies have examined local C3 synthesis in renal disease and elucidated the contribution of local cellular sources, but the ...
Yanyan Liu   +9 more
semanticscholar   +1 more source

Complement C3 exacerbates renal interstitial fibrosis by facilitating the M1 macrophage phenotype in a mouse model of unilateral ureteral obstruction.

open access: yesAJP - Renal Physiology, 2019
The impact of the renal microenvironment on macrophage phenotypes determination can contribute to the progression or resolution of renal fibrosis. While the complement proteins affect macrophage polarization, whether complement component 3 (C3) can ...
Jiong Cui   +4 more
semanticscholar   +1 more source

Complement C3 and Risk of Diabetic Microvascular Disease: A Cohort Study of 95202 Individuals from the General Population.

open access: yesClinical Chemistry, 2018
BACKGROUND Whether the complement system is involved in the development of diabetic microvascular disease is unknown. We tested the hypothesis that high concentrations of complement C3 are associated with increased risk of diabetic retinopathy ...
K. Rasmussen   +2 more
semanticscholar   +1 more source

Genomic organization of human complement component C3

open access: yesGenomics, 1990
Six overlapping clones, spanning the entire C3 gene and the 5' flanking region, were isolated from two genomic lambda libraries. Thirty exons, covering the complete beta chain and part of the alpha chain as far as the C3d region, were analyzed.
K Y, Fong   +3 more
openaire   +2 more sources

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