The vacuolar H(+)-ATPase (V-ATPase) establishes pH gradients along secretory and endocytic pathways. Progressive acidification is essential for proteolytic processing of prohormones and aggregation of soluble content proteins. The V-ATPase V(0) subunit is thought to have a separate role in budding and fusion events. Prolonged treatment of professional secretory cells with selective V-ATPase inh...

background: secretory proteins of ige receptor activated mast cells and basophils play a pivotal role in the generation of immediate and long term immune responses in allergy and type i hypersensitivity. objective: the present study aims to generate a 2-d map and profile of proteins secreted from a high secretory variant of the rat basophilic leukemia cell line, rbl-2h3.1, which in view of the ...

BACKGROUND: Hypoxia adaptation in cancer cells is mediated by hypoxia inducible factor (HIF)-1 that induces the expression of various proteins. Up to date, analysis T47D breast cells-secreted protein still limited. The aim this study was compare profile secreted under hypoxic and normoxic conditions identify proteins as candidate for marker cells.METHODS: were cultured standard conditions. Cell...

The theme of this dissertation is the mode of presentation, assessment and management of six patients with tumours of the pituitary gland. Such tumours may be secretory or non-secretory. Typically secretory tumours present with endocrine abnormalities due to hypersecretion of a particular hormone, while nonsecretory tumours present with symptoms caused by the expansion of the lesion in the pitu...

Disruption of microtubules has been shown to reduce protein secretion from lactating mammary epithelial cells. To investigate the involvement of microtubules in the secretory pathway in these cells we have examined the effect of nocodazole on protein secretion from mammary epithelial cells derived from the lactating mouse. Mouse mammary cells have extensive microtubule networks and 85% of their...

conclusions the current study indicated that the immunoreactivity of secretory iga might have no direct correlation with the colonization of indigenous flora and rejection of exogenous strains in adults. the relationship of microbes, host and dental caries should be in the light of coevolved microecosystem as a whole, but not caused by one factor alone. results the results showed that naturally...

Morphological changes of the epithelium of the uterotubal junction (UTj) by prolonged treatment of 17 (1-estradiol, progesterone or oxytocin in ovariecto-mized rats was studied at the ultrastructural level. The epithelium of the UTj in ovariectomized and oxytocin treated rats was characterized by the appearance of a number of immature epithelial cells and a few ciliated cells. Sometimes a few s...

Sulfated proteoglycans have been proposed to play a role in the sorting and storage of secretory proteins in exocrine secretory granules. Rat parotid acinar cells expressed a 40- to 60-kDa proteoglycan that was stored in secretory granules. Treatment of the tissue with the proteoglycan synthesis inhibitor paranitrophenyl xyloside resulted in the complete abrogation of the sulfated proteoglycan....