Results 21 to 30 of about 1,130 (180)

Defensins: A Double-Edged Sword in Host Immunity

open access: yesFrontiers in Immunology, 2020
Defensins are a major family of host defense peptides expressed predominantly in neutrophils and epithelial cells. Their broad antimicrobial activities and multifaceted immunomodulatory functions have been extensively studied, cementing their role in ...
Dan Xu, Wuyuan Lu
doaj   +1 more source

Identification, cloning and functional characterization of novel beta-defensins in the rat (Rattus norvegicus)

open access: yesReproductive Biology and Endocrinology, 2006
Background beta-defensins are small cationic peptides that exhibit broad spectrum antimicrobial properties. The majority of beta-defensins identified in humans are predominantly expressed in the male reproductive tract and have roles in non-immunological
French Frank S   +5 more
doaj   +1 more source

Artificial β-defensin based on a minimal defensin template

open access: yesBiochemical Journal, 2009
We have designed and chemically synthesized an artificial β-defensin based on a minimal template derived from the comparative analysis of over 80 naturally occurring sequences. This molecule has the disulfide-bridged β-sheet core structure of natural β-defensins and shows a robust salt-sensitive antimicrobial activity against bacteria and yeast, as ...
ANTCHEVA, Nikolinka   +8 more
openaire   +4 more sources

The significance of α-defensins 1-3 in Behcet’s disease: a case-control study among Egyptian patients

open access: yesEgyptian Rheumatology and Rehabilitation, 2020
Background Behcet’s disease (BD) is associated with uveitis, oral ulcers, genital ulcers and arthritis. Enhanced activity of innate immunity components, such as neutrophils, natural killer (NK) cells and endothelial cells, is a prominent feature of BD ...
Reham M. Shaat   +4 more
doaj   +1 more source

Functional Insights From the Evolutionary Diversification of Big Defensins

open access: yesFrontiers in Immunology, 2020
Big defensins are antimicrobial polypeptides believed to be the ancestors of β-defensins, the most evolutionary conserved family of host defense peptides (HDPs) in vertebrates.
Marco Gerdol   +5 more
doaj   +1 more source

Defensins in Viral Infections [PDF]

open access: yesJournal of Innate Immunity, 2009
Defensins are antimicrobial peptides important to innate host defense. In addition to their direct antimicrobial effect, defensins modulate immune responses. Increasing evidence indicates that defensins exhibit complex functions by positively or negatively modulating infections of both enveloped and non-enveloped viruses.
Jian, Ding   +2 more
openaire   +2 more sources

β-defensins and the epididymis: contrasting influences of prenatal, postnatal, and adult scenarios

open access: yesAsian Journal of Andrology, 2016
β-defensins are components of host defense, with antimicrobial and pleiotropic immuno-modulatory properties. Research over the last 15 years has demonstrated abundant expression of a variety of β-defensins in the postnatal epididymis of different species.
Camilla M Ribeiro   +3 more
doaj   +1 more source

A systematic structural comparison of all solved small proteins deposited in PDB. The effect of disulfide bonds in protein fold

open access: yesComputational and Structural Biotechnology Journal, 2021
Defensins are small proteins, usually ranging from 3 to 6 kDa, amphipathic, disulfide-rich, and with a small or even absent hydrophobic core. Since a hydrophobic core is generally found in globular proteins that fold in an aqueous solvent, the peculiar ...
Mariana H. Moreira   +3 more
doaj   +1 more source

Defensins of Grasses: A Systematic Review

open access: yesBiomolecules, 2020
The grass family (Poaceae) is one of the largest families of flowering plants, growing in all climatic zones of all continents, which includes species of exceptional economic importance.
Tatyana I. Odintsova   +2 more
doaj   +1 more source

Mechanisms and regulation of defensins in host defense

open access: yesSignal Transduction and Targeted Therapy, 2023
As a family of cationic host defense peptides, defensins are mainly synthesized by Paneth cells, neutrophils, and epithelial cells, contributing to host defense.
Jie Fu   +5 more
doaj   +1 more source

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