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Key Documents

AC-0352

Sigma-Aldrich

Claudin-4 (EP417) Rabbit Monoclonal Primary Antibody

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About This Item

Code UNSPSC :
12352203
Nomenclature NACRES :
NA.41

Source biologique

rabbit

Forme d'anticorps

Ig fraction of antiserum

Clone

monoclonal

Description

For In Vitro Diagnostic Use in Select Regions (See Chart)

Forme

buffered aqueous solution

Technique(s)

immunohistochemistry (formalin-fixed, paraffin-embedded sections): 1:100-1:200

Conditions d'expédition

wet ice

Température de stockage

2-8°C

Visualisation

(membrane)

Description générale

Claudin-4 is one of twenty-seven integral membrane tight junction proteins and specializes in paracellular sodium transport. Although claudin proteins are primarily known for their cell adhesion function, Claudin-4 binds to zonula occludens proteins and interacts with numerous signaling pathways. Claudin-4 is detectable in low amounts in the normal tissues of the lung, kidney, breast, prostate, bladder and gastrointestinal tract. It is a highly specific and sensitive membranous marker for most epithelial neoplasms. Absence of expression in normal mesothelium and mesothelioma provides utility in the differential diagnosis between carcinoma from mesothelioma with 99% specificity. In breast tumors, claudin-4 levels are significantly higher in ER-negative and high grade tumors when compared to ER-positive and low grade tumors. High levels of Claudin-4 expression are associated with later stages of progression and reduced patient survival for most types of epithelial neoplasms. Conversely, its expression is downregulated in gastric and high-grade bladder cancers, and is significantly lower in lymph node metastasis and esophageal tumors with distant metastasis. Low Claudin-4 expression is associated with a poor prognosis in esophageal squamous cell carcinoma.

Qualité


IVD

IVD

IVD

RUO

Forme physique

Solution in Tris Buffer, pH 7.3-7.7, with 1% BSA and &< 0.1% Sodium Azide

Autres remarques

For a copy of the IFU and CofA contact IVDorder@ABCAM.com

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Code de la classe de stockage

10 - Combustible liquids

Classe de danger pour l'eau (WGK)

WGK 2

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


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