Results 11 to 20 of about 2,792 (97)

Spatial heterogeneity in microglia-complement crosstalk: Implications for synaptic pruning in Alzheimer's disease. [PDF]

open access: yesAlzheimers Dement
Abstract Alzheimer's disease (AD) is a neurodegenerative disorder characterized by synaptic loss, as a key pathological feature in its early stages. Recent studies have highlighted the central role of microglia–complement interactions in synaptic pruning.
Ye Q   +10 more
europepmc   +2 more sources

The Complement System in ANCA-Associated Vasculitis: Mechanistic Insights, Therapeutic Horizons, and Unmet Clinical Needs. [PDF]

open access: yesImmun Inflamm Dis
Complement activation, particularly via the alternative pathway, drives inflammation and organ damage in ANCA‐associated vasculitis. This review highlights mechanistic insights, tissue and biomarker evidence, and clinical implications of targeting the C5a–C5aR1 axis.
Sunmboye K, Millan P.
europepmc   +2 more sources

Induction of immune cytolysis: tumor-cell killing by complement is initiated by covalent complex of monoclonal antibody and stable C3/C5 convertase. [PDF]

open access: yesProceedings of the National Academy of Sciences, 1981
The unique specificity of monoclonal antibodies (Ab) was combined with the cell-killing function of the cytolytic alternative pathway of complement. The functionally C3b-like glycoprotein of cobra venom was linked to a murine monoclonal Ab directed to a human melanoma-associated antigen by a disulfide bond, by using a heterobifunctional crosslinking ...
C W, Vogel, H J, Müller-Eberhard
openaire   +2 more sources

Deregulation of Factor H by Factor H-Related Protein 1 Depends on Sialylation of Host Surfaces

open access: yesFrontiers in Immunology, 2021
To discriminate between self and non-self surfaces and facilitate immune surveillance, the complement system relies on the interplay between surface-directed activators and regulators.
Arthur Dopler   +10 more
doaj   +1 more source

A potent truncated form of human soluble CR1 is protective in a mouse model of renal ischemia–reperfusion injury

open access: yesScientific Reports, 2021
The complement system is a potent mediator of ischemia–reperfusion injury (IRI), which detrimentally affects the function and survival of transplanted kidneys.
Anjan K. Bongoni   +10 more
doaj   +1 more source

Functional Characterization of Alternative and Classical Pathway C3/C5 Convertase Activity and Inhibition Using Purified Models

open access: yesFrontiers in Immunology, 2018
Complement is essential for the protection against infections; however, dysregulation of complement activation can cause onset and progression of numerous inflammatory diseases.
Seline A. Zwarthoff   +8 more
doaj   +1 more source

C3-Glomerulopathy Autoantibodies Mediate Distinct Effects on Complement C3- and C5-Convertases

open access: yesFrontiers in Immunology, 2019
C3 glomerulopathy (C3G) is a severe kidney disease, which is caused by defective regulation of the alternative complement pathway. Disease pathogenesis is heterogeneous and is caused by both autoimmune and genetic factors.
Fei Zhao   +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

open access: yesFrontiers 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   +8 more
doaj   +1 more source

Nephritic Factors: An Overview of Classification, Diagnostic Tools and Clinical Associations

open access: yesFrontiers in Immunology, 2019
Nephritic factors comprise a heterogeneous group of autoantibodies against neoepitopes generated in the C3 and C5 convertases of the complement system, causing its dysregulation.
Fernando Corvillo   +11 more
doaj   +1 more source

C3 glomerulonephritis with genetically confirmed C3 deficiency in a pediatric patient: a case report [PDF]

open access: yesChildhood Kidney Diseases
Complement component 3 glomerulonephritis (C3GN) is a rare kidney disease characterized by complement dysregulation that results in prominent complement component 3 (C3) deposition in the kidneys. The clinical course of C3GN varies from mild hematuria to
Hae Min Kim   +8 more
doaj   +1 more source

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