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In cultured bovine adrenal chromaffin cells, a nonselective protein kinase inhibitor, staurosporine, inhibits secretory function and induces neurite outgrowth. In the present study, effects of other nonselective protein kinase inhibitors (K-252a, H-7, and H-8) and reportedly selective protein kinase inhibitors (KN-62 and chelerythrine chloride) were… (More)
Adrenal chromaffin cells contain at least two subtypes of nicotinic acetylcholine receptors (nAChRs). These studies were designed to identify and characterize the subtype of nAChR mediating adrenal catecholamine release using the monoclonal antibody mAb35, which recognizes the alpha-subunit of muscle nAChRs and cross-reacts with some neuronal nAChRs.… (More)
Relatively little is known about the type and number of nicotinic acetylcholine receptors (nAChRs) that mediate secretion from adrenal chromaffin cells. In these studies, we investigated nAChR reserve pools and their modulation using bromoacetylcholine (brACh) and the anti-nAChR antibody mAb35. By using brACh under acetylating conditions, adrenal… (More)
The importance of disulfide bridges in muscle nicotinic receptors is well established; however, for neuronal nicotinic receptors, the effects of sulfhydryl modification are less definitive. In these studies the effects of treatment with the mild reducing agent, dithiothreitol, on adrenal nicotinic receptors are described. We have found that following… (More)
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