Distinct immuno-localization of mucin and other biliary proteins in human cholesterol gallstones
| Autor: | J.D. Ostrow, Nicole Domingo, P. Lechene de la Porte, Huguette Lafont, M.J.A. van Wijland, A. K. Groen |
|---|---|
| Přispěvatelé: | Other departments |
| Rok vydání: | 1996 |
| Předmět: |
chemistry.chemical_element
Matrix (biology) Calcium Biology chemistry.chemical_compound Cholelithiasis medicine Bile Humans Hepatology Cholesterol Gallbladder Mucin Albumin Mucins Proteins Gallstones medicine.disease medicine.anatomical_structure chemistry Biochemistry Immunologic Techniques Microscopy Electron Scanning Immunostaining Electron Probe Microanalysis |
| Zdroj: | Journal of hepatology, 25(3), 339-348. Elsevier |
| ISSN: | 0168-8278 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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