Distinct immuno-localization of mucin and other biliary proteins in human cholesterol gallstones
Identifieur interne : 003420 ( Main/Exploration ); précédent : 003419; suivant : 003421Distinct immuno-localization of mucin and other biliary proteins in human cholesterol gallstones
Auteurs : P. Lechene De La Porte ; N. Domingo ; M. Van Wijland [Pays-Bas] ; A. K. Groen [Pays-Bas] ; J. D. Ostrow [États-Unis] ; H. LafontSource :
- Journal of Hepatology [ 0168-8278 ] ; 1996.
Abstract
Background/Aims: Cholesterol gallstones consist of cholesterol crystals and smaller amounts of pigments and calcium salts, arrayed on a mucin plus protein matrix. The localization of the various biliary proteins in the stones has not been characterized. We aimed to localize several biliary proteins in gallstones in order to determine their possible role in stone formation and growth. Methods: The distribution of several matrix proteins and their relationships to the minerals were determined using immunostaining and EDAX microanalysis on hemisected cholesterol gallstones. Results: Pigment areas were rich in calcium and contained Cu, P and S. These elements were absent in cholesterol regions. Mucin was identified in a three-dimensional network intercalated between cholesterol crystals and as septa between deposits of pigments and cholesterol; APF/CBP and ApN coated only the pigment deposits. No specific topographical localization was found for albumin or IgA. Conclusions: This suggests a role for mucin, APF/CBP and ApN in the formation of cholesterol gallstones. We propose that cholesterol crystals bind directly to mucin, whereas calcium salts and pigments deposits on APF/CBP and ApN bind to the mucin.
Url:
DOI: 10.1016/S0168-8278(96)80121-8
Affiliations:
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Groen</name><affiliation wicri:level="3"><country xml:lang="fr">Pays-Bas</country><wicri:regionArea>Department of Hepato/Gastroenterology, Academic Medical Center, Amsterdam</wicri:regionArea><placeName><settlement type="city">Amsterdam</settlement><region nuts="2" type="province">Hollande-Septentrionale</region></placeName></affiliation></author><author><name sortKey="Ostrow, J D" sort="Ostrow, J D" uniqKey="Ostrow J" first="J. D." last="Ostrow">J. D. Ostrow</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Research Service, DVA Lakeside Medical Center, Chicago, IL</wicri:regionArea><placeName><region type="state">Illinois</region></placeName></affiliation></author><author><name sortKey="Lafont, H" sort="Lafont, H" uniqKey="Lafont H" first="H." last="Lafont">H. Lafont</name><affiliation><wicri:noCountry code="subField">Marseille France</wicri:noCountry></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Hepatology</title><title level="j" type="abbrev">JHEPAT</title><idno type="ISSN">0168-8278</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1996">1996</date><biblScope unit="volume">25</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="339">339</biblScope><biblScope unit="page" to="348">348</biblScope></imprint><idno type="ISSN">0168-8278</idno></series><idno type="istex">0E0AE74CA7712D812A3A6827C4C3C4FE71CBE896</idno><idno type="DOI">10.1016/S0168-8278(96)80121-8</idno><idno type="PII">S0168-8278(96)80121-8</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0168-8278</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Background/Aims: Cholesterol gallstones consist of cholesterol crystals and smaller amounts of pigments and calcium salts, arrayed on a mucin plus protein matrix. The localization of the various biliary proteins in the stones has not been characterized. We aimed to localize several biliary proteins in gallstones in order to determine their possible role in stone formation and growth. Methods: The distribution of several matrix proteins and their relationships to the minerals were determined using immunostaining and EDAX microanalysis on hemisected cholesterol gallstones. Results: Pigment areas were rich in calcium and contained Cu, P and S. These elements were absent in cholesterol regions. Mucin was identified in a three-dimensional network intercalated between cholesterol crystals and as septa between deposits of pigments and cholesterol; APF/CBP and ApN coated only the pigment deposits. No specific topographical localization was found for albumin or IgA. Conclusions: This suggests a role for mucin, APF/CBP and ApN in the formation of cholesterol gallstones. We propose that cholesterol crystals bind directly to mucin, whereas calcium salts and pigments deposits on APF/CBP and ApN bind to the mucin.</div></front></TEI><affiliations><list><country><li>Pays-Bas</li><li>États-Unis</li></country><region><li>Hollande-Septentrionale</li><li>Illinois</li></region><settlement><li>Amsterdam</li></settlement></list><tree><noCountry><name sortKey="De La Porte, P Lechene" sort="De La Porte, P Lechene" uniqKey="De La Porte P" first="P. Lechene" last="De La Porte">P. Lechene De La Porte</name><name sortKey="Domingo, N" sort="Domingo, N" uniqKey="Domingo N" first="N." last="Domingo">N. Domingo</name><name sortKey="Lafont, H" sort="Lafont, H" uniqKey="Lafont H" first="H." last="Lafont">H. Lafont</name></noCountry><country name="Pays-Bas"><region name="Hollande-Septentrionale"><name sortKey="Van Wijland, M" sort="Van Wijland, M" uniqKey="Van Wijland M" first="M." last="Van Wijland">M. 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