PMID: 18431032Apr 24, 2008Paper

The differential distribution of type IV collagen alpha chains in the subepithelial basement membrane of the human alimentary canal

Archives of Histology and Cytology
Hiroyuki SatoAiji Ohtsuka

Abstract

We studied distribution patterns of type IV collagen alpha chains in the subepithelial basement membrane (SBM) of the human gastrointestinal tract - the esophagus through the anal canal - by immunofluorescent microscopy using alpha(IV) chain-specific monoclonal antibodies. The alpha1(IV), alpha2(IV), alpha5(IV), and alpha6(IV) chains were found in the SBM throughout the tract, indicating the localization of [alpha1(IV)](2)alpha2(IV) and [alpha5(IV)](2)alpha6(IV) heterotrimeric molecules. The [alpha1(IV)](2)alpha2(IV) molecule was continuously stained, while the [alpha5(IV)](2)alpha6(IV) molecule was weakly stained in gastric glands and small intestinal crypts. In addition, the SBM at the luminal surface epithelium of the stomach and large intestine contained small amounts of alpha3(IV) and alpha4(IV) chains which combined to form the alpha3(IV)alpha4(IV)alpha5(IV) heterotrimeric molecule with alpha5(IV) chain. The SBM beneath the villous epithelium of the small intestine was also demonstrated to have an alpha3(IV) chain and alpha4(IV) chain. Considering the specific locations of the type IV collagen trimers throughout the gastrointestinal SBM, the supramolecular network containing the alpha3(IV)alpha4(IV)alpha5(IV) molecule app...Continue Reading

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Feb 26, 2008·Archives of Histology and Cytology·Haruko HasegawaAiji Ohtsuka

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Citations

Feb 6, 2009·Archives of Histology and Cytology·Noriko HinenoyaAiji Ohtsuka
Jul 13, 2017·Nature Reviews. Gastroenterology & Hepatology·George S HusseyStephen F Badylak
Feb 13, 2020·Cells·Ana Margarida MoreiraJoana Figueiredo
Jul 20, 2021·Biomaterials·S RezakhaniM P Lutolf

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