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(författare)
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- 2021
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(författare)
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- 2021
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(författare)
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WE-14, a chromogranin A - Derived neuropeptide
- 2002
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Ingår i: Annals of the New York Academy of Sciences. - 0077-8923. ; 971, s. 311-316
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Tidskriftsartikel (refereegranskat)abstract
- The neuropeptide WE-14 is derived from the posttranslational processing of chromogranin A (CgA). While CgA is expressed in a preponderance of neuroendocrine cells, WE-14 is generated in a distinct subpopulation of CgA-immunopositive cells, most notably in the adrenal, pituitary, and parathyroid glands. Physiological and pharmacological studies have demonstrated that CgA is cleaved to generate WE-14 in the adrenal chromaffin cell population and in the enterochromaffin-like (ECL) cells of the oxyntic mucosa. Pathological analyses of neuroendocrine tumors have revealed a heterogeneous pattern of WE-14 immunostaining, with variable concentrations quantified and chromatographically resolved in tissue extracts. Phylogenetic surveys have demonstrated that WE-14 exhibits an ancient lineage, while ontogenetic examination has shown that it is generated at an early stage during fetal development. Putative WE-14 receptor binding sites have been identified in several tissues; however, the physiological role of WE-14 remains enigmatic.
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