Document Detail

Interaction between chromaffin and sustentacular cells in adrenal medulla of viscacha (Lagostomus maximus maximus).
MedLine Citation:
PMID:  17535349     Owner:  NLM     Status:  MEDLINE    
New evidence provides valuable information about the participation of sustentacular cells in chromaffin cell catecholamine secretion. In this process, calcium ions play an important role. It has been shown that there is an intense ionic traffic between both types of cells. Moreover, sustentacular cells take an active part in calcium metabolism, regulating levels of the ion and indirectly, the synthesis and release of catecholamines. This background information encouraged us to study the sustentacular population of Lagostomus adrenal medulla and its morphologic relationship with the chromaffin population. The animals were captured, transported to the animal facilities, anaesthetized and killed. The adrenal gland was processed by immunohistochemistry using antiserum against S-100 (subunit alpha and beta), a specific marker. Through the morphological and immunohistochemical study, it was found that there are sustentacular cells in deferent regions of adrenal medulla, mainly in the basal zone of chromaffin cells, which constitute the glomerular structure around blood capillaries. Cytoplasmic extentions of sustentacular cells penetrate into chromaffin cells and make contact with the basal membrane of the capillary endothelium. The relationship among chromaffin cells, capillaries and sustentacular cells suggests that they may intervene actively in the adrenal medulla metabolism.
H Rodriguez; V Filippa; F Mohamed; S Dominguez; L Scardapane
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Anatomia, histologia, embryologia     Volume:  36     ISSN:  0340-2096     ISO Abbreviation:  Anat Histol Embryol     Publication Date:  2007 Jun 
Date Detail:
Created Date:  2007-05-30     Completed Date:  2007-07-12     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7704218     Medline TA:  Anat Histol Embryol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  182-5     Citation Subset:  IM    
Cátedra de Histología y Embriología, Universidad Nacional de San Luis, (5700) San Luis, Argentina.
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MeSH Terms
Adrenal Medulla / anatomy & histology,  cytology*,  metabolism
Calcium / metabolism
Catecholamines / secretion
Chromaffin Cells / metabolism*
Immunohistochemistry / veterinary
Rodentia / anatomy & histology*
Reg. No./Substance:
0/Catecholamines; 7440-70-2/Calcium

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