Immunohistochemical detection of tyrosine kinase B (TrkB) in the enteric nervous system of the small intestine in pigeon (Columba livia)

Autor: A GermanÃ, MB Levanti, DF Monjil, E Ciriaco
Jazyk: angličtina
Rok vydání: 2009
Předmět:
Zdroj: European Journal of Histochemistry, Vol 48, Iss 4 (2009)
Druh dokumentu: article
ISSN: 1121-760X
2038-8306
DOI: 10.4081/910
Popis: The presence and cell localization of TrkB, the main receptor for the neurotrophins (NTs), was investigated immunohistochemically in the small intestine of adult pigeons, with special reference to the enteric nervous system (ENS). Several neuronal (neurofilament proteins and PGP 9.5) and glial cell (S100 protein) markers were studied in parallel. TrkB immunoreactivity (TrkB-IR) was found to be restricted to immunohistochemically-identified glial cells present in the enteric plexuses, and to Schwann cells forming the perivascular plexus. Also, TrkB-IR was detected in enterochromaffin cells and in unidentified dendritic cells within the gut-associated lymphoid tissue. The present results demonstrate that as for mammals, TrkB in the ENS is restricted to the glial cells. The possible function of the TrkB ligands, however, remains to be established.
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