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we engineered a monoclonal antibody against HNP-1 to block the interaction with P2X7 and found that the blocking antibody protected mice carrying high copy number of DEFA1/DEFA3 from lethal sepsis. We thus demonstrate that DEFA1/DEFA3 copy number variation strongly modulates sepsis development in vivo and explore a paradigm for the precision treatment of sepsis tailored by individual genetic information.
MMP-7-dependent procryptdin activation in vivo provides mouse Paneth cells with functional peptides for apical secretion into the small intestine lumen
cryptdin 3 forms anion-selective channels on the cytoplasmic membrane of HEK cells and that the kinetics of one such channel are affected by its interaction with other such channels.
lower DEFA1/DEFA3 copy number (CNV < 7) is associated with higher susceptibility to hospital-acquired infections (HAIs) in critically ill patients, indicating that host genetic factors are involved in the development of HAIs
DEFA1, DEFA3, and PPBP expression was significantly increased in hyperlipidemia and coronary heart disease patients compared with controls.
these results demonstrate that HNPs1-3 may be potent inhibitors of ADAMTS13 activity, likely by binding to the central A2 domain of VWF and physically blocking ADAMTS13 binding.
High HNP3 expression is associated with IgA Nephropathy.
The expression of alpha-defensins 1, 2 and 3 is up-regulated in hypercholesteremia.
Elevated DEFA3 levels in diabetes are independent of DEFA3 copy numbers.
DEFA3 encodes an antibacterial peptide that is bacteriocidal against S. aureus, E. coli, and P. aeruginosa.
A decrease in salivary HNP 1-3 levels might be a biological factor for predisposition to oral ulcers in patients with Behcet disease and oral infection in healthy patients.
Results indicate that the gene expression of DEFA 1/3 and 4 was significantly increased in all tumours - except for a significant decrease of DEFA 4 gene expression in pleomorphic adenomas.
This study suggests that HNPs 1-3 promote tumor invasion and are potential indicators of disease progression in patients with bladder cancer.
alpha-Defensin (DEFA3)was the third most differentially overexpressed gene and may be related to the onset of Bell's palsy and Ramsay Hunt Syndrome.
expressional level of HNPs 1,2 and 3 were significantly higher and their distributions overlapped in cancerous tissues of gastric cancer patients
Directly isolated dendritic cells secrete alpha-defensins 1-3; E2 inhibits this secretion. Same trend is observed in myeloid dendritic cells isolated from pregnant women in their first trimester (low plasma E2) and third trimester (high plasma E2).
Increased levels of human neutrophil peptides 1, 2, and 3 in peritoneal fluid of patients with endometriosis: association with neutrophils, T cells and IL-8.
HNP1-3 concentrations in patients with multidrug-resistant tuberculosis were significantly lower than in drug-susceptible pulmonary TB and healthy controls
Changes in the expression pattern of DEFA 1/3 seem to be involved in the development of gingival irritation fibromas, whereas chronic inflammation might be of less importance.
alpha-defensins 1-3 in T cells from patients with SJS/TEN may be involved in the etiopathology of these life-threatening diseases induced by medications.
Our report of DEFA1-3 expression by human omental adipocytes adds to the role of adipocytes in the primary defense against bacterial infection.
Data show that high production of alpha-defensins1-3 by immature DCs appears as a host protective factor against progression of HIV-1 infection, suggesting potential diagnostic, therapeutic and preventive implications.
The total amount of gingival crevicular fluid human neutrophil peptide 3 were not different among periodontitis, gingivitis, and health control groups; there was no correlation with clinical periodontal parameters.
Defensins are a family of microbicidal and cytotoxic peptides thought to be involved in host defense. They are abundant in the granules of neutrophils and also found in the epithelia of mucosal surfaces such as those of the intestine, respiratory tract, urinary tract, and vagina. Members of the defensin family are highly similar in protein sequence and distinguished by a conserved cysteine motif. The protein encoded by this gene, defensin, alpha 3, is found in the microbicidal granules of neutrophils and likely plays a role in phagocyte-mediated host defense. Several alpha defensin genes are clustered on chromosome 8. This gene differs from defensin, alpha 1 by only one amino acid. This gene and the gene encoding defensin, alpha 1 are both subject to copy number variation.
neutrophil defensin 3
, Paneth cell-specific alpha-defensin 3
, alpha-defensin 3, neutrophil-specific
, alpha-defensin 3
, defensin, alpha, 27
, defensin-related cryptdin-3
, defensin 3, neutrophil-specific
, neutrophil peptide 3