Results 21 to 30 of about 11,905 (245)

Properdin Modulates Complement Component Production in Stressed Human Primary Retinal Pigment Epithelium Cells

open access: yesAntioxidants, 2020
The retinal pigment epithelium (RPE) maintains visual function and preserves structural integrity of the retina. Chronic dysfunction of the RPE is associated with retinal degeneration, including age-related macular degeneration (AMD).
Volker Enzmann, Diana Pauly
exaly   +3 more sources

Structural Basis for Properdin Oligomerization and Convertase Stimulation in the Human Complement System

open access: yesFrontiers in Immunology, 2019
Properdin (FP) is a positive regulator of the immune system stimulating the activity of the proteolytically active C3 convertase C3bBb in the alternative pathway of the complement system. Here we present two crystal structures of FP and two structures of
Yong Wang   +2 more
exaly   +3 more sources

Characterization of the bispecific VHH antibody tarperprumig (ALXN1820) specific for properdin and designed for low-volume administration [PDF]

open access: yesmAbs
The bispecific antibody tarperprumig (ALXN1820) was developed as a treatment option for diseases involving dysregulated complement alternative pathway (AP) activity that could be administered in small volumes, either subcutaneously or intravenously ...
Paul Tamburini   +8 more
doaj   +2 more sources

Low molecular weight polysialic acid binds to properdin and reduces the activity of the alternative complement pathway [PDF]

open access: goldScientific Reports, 2022
Sialic acids as the terminal caps of the cellular glycocalyx play an essential role in self-recognition and were shown to modulate complement processes via interaction between α2,3-linked sialic acids and complement factor H. Previously, it was suggested
Anahita Shahraz   +9 more
doaj   +2 more sources

Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, and Immunogenicity of ALXN1820 (Tarperprumig) in Healthy Adults: Results of a Phase I Study. [PDF]

open access: yesClin Transl Sci
ABSTRACT Properdin is an endogenous positive regulator of the complement alternative pathway (AP). Tarperprumig (ALXN1820), a novel humanized bispecific antibody, binds properdin and albumin and is being developed to treat complement‐mediated diseases.
Sandhu A   +8 more
europepmc   +2 more sources

Endothelial Glycocalyx: The Missing Link Between Angiogenic Imbalance in Preeclampsia and Systemic Inflammation in HELLP Syndrome. [PDF]

open access: yesCompr Physiol
Endothelial glycocalyx may be the missing link between angiogenic factors, inflammatory regulation, and endothelial maternal dysfunction in early‐onset preeclampsia and HELLP syndrome. ABSTRACT The pathophysiology of preeclampsia and HELLP syndrome relies on systemic vascular endothelial dysfunction, resulting from angiogenic imbalance due to abnormal ...
Atallah A   +4 more
europepmc   +2 more sources

Seventy Years Later: Systemic and Local Properdin in Atherosclerosis [PDF]

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Jean F. Regal, Sherry D. Fleming
doaj   +2 more sources

A novel assay that characterizes properdin function shows neutrophil-derived properdin has a distinct oligomeric distribution

open access: yesFrontiers in Immunology, 2023
Properdin acts as an essential positive regulator of the alternative pathway of complement by stabilizing enzymatic convertases. Identical properdin monomers form head-to-tail associations of oligomers in a reported 20:54:26 ratio (most often described ...
Sara R. Moore   +5 more
doaj   +1 more source

Proteomic analysis of plasma proteins during fentanyl withdrawal in ovariectomized female rats with and without estradiol. [PDF]

open access: yesJ Neuroendocrinol
Abstract Evidence from both clinical and preclinical studies indicates that females experience a faster progression to drug addiction and more severe addiction‐related health effects compared with males. Estradiol (E2) plays a critical role in these sex differences.
Sinclair P   +4 more
europepmc   +2 more sources

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