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This is accompanied by decrease in concentration of total bile acids in the gallbladder bile and increase of concentration of biliary cholesterol in phospholipid vesicles, and causes disturbance in colloidal stability of gallbladder bile and precipitation of the cholesterol monohydrate crystals from unstable multilamellar aggregated phospholipid vesicles and calcium bilirubinate granules, i.e. formation of “lithogenic” gallbladder bile ().

PREVENTION OF ABSORPTION FROM LIGATED INTESTINAL SEGMENTS.

This would, perhaps, explain why the oligosaccharideisolated from sources containing soluble glycosyltransferases is not identical to that assembled in a morestructured and compartmentalized path in Golgi apparatus.

Mucin synthesis and secretion in relation to ..

The key enzyme responsible for switching from core 1 to core 2 O-glycans is þ6-GlcNActransferase.

We previously demonstrated that human tracheobronchial epithelial (TBE) cells synthesize mucin and form mucous granules in culture when they are maintained on a collagen gel (CG) substratum, but not on a plastic tissue culture surface or a thin collagen-coated surface (Wu et al., Am. J. Respir. Cell Mol. Biol., 3:467-478; 1990). This observation led us to examine the effects of CG thickness on cell growth and differentiation in primary human/monkey TBE cell cultures. Using the same CG preparation, culture dishes with different thicknesses of CG substratum were prepared. In general, equivalent degrees of cell attachment and proliferation were observed in all cultures maintained on a collagen gel, independent of the thicknesses of CG substratum. However, a greater degree of mucin synthesis and secretion by the cells was observed as the thickness of the CG substratum was increased. Cultures maintained on a thick collagen gel (1 mm) exhibited greater apical membrane complexity, more pseudostratification, and more mucous granules than did cultures maintained on a thin CG substratum. The optimal culture surface for airway mucous cell differentiation contains more than 1-mm thickness of collagen gel substratum.

N2 - We previously demonstrated that human tracheobronchial epithelial (TBE) cells synthesize mucin and form mucous granules in culture when they are maintained on a collagen gel (CG) substratum, but not on a plastic tissue culture surface or a thin collagen-coated surface (Wu et al., Am. J. Respir. Cell Mol. Biol., 3:467-478; 1990). This observation led us to examine the effects of CG thickness on cell growth and differentiation in primary human/monkey TBE cell cultures. Using the same CG preparation, culture dishes with different thicknesses of CG substratum were prepared. In general, equivalent degrees of cell attachment and proliferation were observed in all cultures maintained on a collagen gel, independent of the thicknesses of CG substratum. However, a greater degree of mucin synthesis and secretion by the cells was observed as the thickness of the CG substratum was increased. Cultures maintained on a thick collagen gel (1 mm) exhibited greater apical membrane complexity, more pseudostratification, and more mucous granules than did cultures maintained on a thin CG substratum. The optimal culture surface for airway mucous cell differentiation contains more than 1-mm thickness of collagen gel substratum.

Mucin synthesis and secretion in relation to …

PYLORI AND GASTRIC EPITHELIAL INTEGRITY Apart from the enzymatic activities of

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Considering the events involving the immediate peptide foldingin RER which closely follow the nascent peptide translation, this stage appears to be the only feasiblemoment for complete glycosylation of the peptide chain.Using mucus glycoprotein synthesizing polysomes, and monoclonal antibodies recognizing GalNAc, thefraction of the peptides ranging from 6-60kDa was isolated.

The adherence of the organism isimpaired by crude mucus from the intestinal surface.
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  • MUC7 Gene - GeneCards | MUC7 Protein | MUC7 Antibody

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  • Airway Mucus Function and Dysfunction — NEJM

    Recent work from laboratory has begun to uncover the initial stages of O-glycosidic glycoproteinsynthesis in the RER.

  • Glossary | Linus Pauling Institute | Oregon State University

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Diabetes, scleroderma, oils and hormones - Ray Peat

However, the rate of UDP-Gal translocation intothe Golgi vesicles from the mutant cell lines was only 3% of the rate of transport into the vesiclesderived from parental cell lines, whereas the other nucleotide derivatives, such as UDP-GlcNAc,UDP-GalNAcand PAPS were transported at rates comparable with that of wild-type cells.

A R T I C L E Diabetes, scleroderma, oils and hormones

However, the carbohydrate residues attached in Golgi compartments (farther away from thecore peptide chain) are differentially expressed and seem to be also regulated in the cell by development,differentiation, oncogenic transformation and other as yet unknown factors.

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Support for this idea comes from studies of altered cellular glycosylation in cells transfectedwith DNA fragments or expression vectors containing cDNA coding for glycosyltransferases which synthesizeterminal sequences of apomucins.At present, the idea is entertained that different mucosal cells are responsible for differentmucins.

HAVCR2 Gene - GeneCards | HAVR2 Protein | HAVR2 …

The delineation of the mechanism underlying the effect of ethanol, Sjogren syndrome pathology, on thenormal vectorial flow of mucin precursors from ER to Golgi compartment may be expected to provide a newinsight into the possible function of O-glycosylation, protein C-terminal sequence and its earlypost-translational acylation on the secretory protein assembly.

Apoptosis Inducers - Apoptosis and Cell Cycle | Sigma-Aldrich

While there is no direct evidence that mucin C-terminal cytoplasmic acylated domain is necessary forthe efficient export from ER, the mucin assembled in systems treated with a physiologically tolerated doseof alcohol which is known to inhibit protein acylating enzyme, is retained or degraded in the ER.

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