The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is > 95% (by SDS-PAGE).

Forma del prodotto

1 mg/ml in Phosphate buffered saline (PBS) with 0.05% sodium azide, approx. pH 7.2.

Sinonimi

7B 4, 7B4, 7B4 antigen, CADH5_HUMAN, Cadherin 5, Cadherin 5 type 2, Cadherin 5, type 2 (vascular endothelium), Cadherin 5, type 2, VE cadherin (vascular epithelium), cadherin, vascular endothelial, cadherin, vascular endothelial, 1, Cadherin-5, Cadherin5, CD 144, CD144, CD144 antigen, CDH 5, CDH5, CDH5 protein, Endothelial specific cadherin, FLJ17376, OTTHUMP00000174777, Vascular endothelial cadherin, Vascular epithelium cadherin, VE Cad, VE Cadherin, VEC

Secondari adatti

Dichiarazione di non responsabilità

Questo prodotto è solo per uso di ricerca. Non è inteso per uso diagnostico o terapeutico.

Immagini (2)

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Figure 1: Anti-VE-Cadherin (phospho-Y731) Antibody (BS4242)

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Figure 2: Anti-VE-Cadherin (phospho-Y731) Antibody (BS4242)

For details please refer to datasheet.

Pubblicazioni (3)

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Wogonin inhibits LPS-induced vascular permeability via suppressing MLCK/MLC pathway.

Riferimenti: Anti-VE-Cadherin (phospho-Y731) Antibody (A27509)

Astratto:

Wogonin, a naturally occurring monoflavonoid extracted from the root of Scutellaria baicalensis Georgi, has been shown to have anti-inflammatory and anti-tumor activities and inhibits oxidant stress-induced vascular permeability. However, the influence of wogonin on vascular hyperpermeability induced by overabounded inflammatory factors often appears in inflammatory diseases and tumor is not well known. In this study, we evaluate the effects of wogonin on LPS induced vascular permeability in human umbilical vein endothelial cells (HUVECs) and investigate the underlying mechanisms. We find that wogonin suppresses the LPS-stimulated hyperactivity and cytoskeleton remodeling of HUVECs, promotes the expression of junctional proteins including VE-Cadherin, Claudin-5 and ZO-1, as well as inhibits the invasion of MDA-MB-231 across EC monolayer. Miles vascular permeability assay proves that wogonin can restrain the extravasated Evans in vivo. The mechanism studies reveal that the expressions of TLR4, p-PLC, p-MLCK and p-MLC are decreased by wogonin without changing the total steady state protein levels of PLC, MLCK and MLC. Moreover, wogonin can also inhibit KCl-activated MLCK/MLC pathway, and further affect vascular permeability. Significantly, compared with wortmannin, the inhibitor of MLCK/MLC pathway, wogonin exhibits similar inhibition effects on the expression of p-MLCK, p-MLC and LPS-induced vascular hyperpermeability. Taken together, wogonin can inhibit LPS-induced vascular permeability by suppressing the MLCK/MLC pathway, suggesting a therapeutic potential for the diseases associated with the development of both inflammatory and tumor.

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Leukocyte extravasation and vascular permeability are each controlled in vivo by different tyrosine residues of VE-cadherin.

Riferimenti: Anti-VE-Cadherin (phospho-Y731) Antibody (A27509)

Astratto:

Tyrosine phosphorylation of the adhesion molecule VE-cadherin is assumed to affect endothelial junction integrity. However, it remains unclear whether tyrosine residues of VE-cadherin are required for the induction of vascular permeability and the regulation of leukocyte extravasation in vivo. We found here that knock-in mice expressing a Y685F mutant of VE-cadherin had impaired induction of vascular permeability, but those expressing a Y731F mutant did not. In contrast, mice expressing the Y731F VE-cadherin mutant showed decreased neutrophil-extravasation in cremaster tissue, but those expressing the Y685F mutant did not. Whereas inflammatory mediators induced the phosphorylation of Tyr685 in vivo, Tyr731 showed high baseline phosphorylation. Leukocytes triggered dephosphorylation of Tyr731 via the tyrosine phosphatase SHP-2, which allowed the adaptin AP-2 to bind and initiate endocytosis of VE-cadherin. Thus, Tyr685 and Tyr731 of VE-cadherin distinctly and selectively regulate the induction of vascular permeability or leukocyte extravasation.

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Src blockage by siRNA inhibits VEGF-induced vascular hyperpemeability and osteoclast activity - an in vitro mechanism study for preventing destructive repair of osteonecrosis.

Riferimenti: Anti-VE-Cadherin (phospho-Y731) Antibody (A27509)

Astratto:

INTRODUCTION:

Destructive repair is the pathological feature of ONFH characterized with the elevated vascular permeability and persistent bone resorption, which is associated with higher VEGF expression, activated c-Src, and vascular leakage. Activated c-Src also participates in mediating endothelial permeability and osteoclasts activity. However, the molecular mechanism of the VEGF and c-Src contributing to the destructive repair process remains unknown. The purpose of this study is to delineate the role of VEGF and c-Src in triggering destructive repair of osteonecrosis in vitro, as well as to elucidate if VEGF mediating vascular permeability and osteoclastic bone resorption are Src dependent.

METHODS:

We employed pharmacological VEGF to induce higher endothelial permeability and osteoclasts activity for simulating related pathological features of destructive repair in vitro. Src specific pp60(c-src)siRNA was used for determining the contribution of VEGF and Src to destructive repair. The primary endothelial cells and osteoclasts were treated with 50ng/ml VEGF and/or transfected with the pp60(c-src)siRNA, while equivalent PBS and non-targeting siRNA were treated in the control groups.

RESULTS:

VEGF enhanced Src bioactivity through promoting dephosphorylation of Src at Y527 and phosphorylation of Src at Y416. Meanwhile, Src specific pp60(c-src)siRNA significantly reduced Src expression in both cells. VEGF destroyed the junctional integrity of endothelial cells resulting in higher endothelial permeability. However, Src blockade significantly relieved VEGF induced actin stress and inhibited caveolae and VVOs formation, meanwhile further stabilized the complex β-catenin/VE-cadherin/Flk-1 through decreasing phosphorylation of VE-cadherin, ultimately decreasing VEGF-mediating higher vascular permeability. In addition, VEGF promoted osteoclasts formation and function without affecting the adhesion activity and cytoskeleton. We further found that Src blockade significantly impaired cytoskeleton resulting in a lower adhesion activity through down-regulation of phosphorylation of Src, Pyk2 and Cbl, and ultimately inhibited osteoclasts formation and function.

CONCLUSIONS:

These findings provide a new insight into VEGF and c-Src mode of reaction in triggering destructive repair of osteonecrosis and further indicate that VEGF mediating vascular permeability and osteoclasts activity are Src-dependent. Blockade of Src may have great potential as an effective therapy targeting destructive repair in osteonecrosis.

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