Publicaciones científicas

Immunohistochemical characterization of the rat carotid body

Izal-Azcárate A, Belzunegui S, San Sebastián W, Garrido-Gil P, Vázquez-Claverie M, López B, Marcilla I, Luquin MA.
Department of Neuroscience, Centre for Applied Medical Research-University of Navarra, Avda. Pío XII 55, 31008 Pamplona, Navarra, Spain

Magazine: Respiratory Physiology and Neurobiology

Date: Mar 20, 2008

Neurology [SP]

We studied the histochemical phenotype of carotid body (CB) cells in the adult rat. In addition to tyrosine hydroxylase (TH), type I cells expressed numerous growth factors such as glial cell line-derived neurotrophic factor (GDNF), basic fibroblast growth factor (bFGF), brain-derived neurotrophic factor (BDNF), ciliary neurotrophic factor (CNTF), insulin-like growth factor-I (IGF-I), epidermal growth factor (EGF) and transforming growth factor-alpha (TGF-alpha), as well as the receptors p75, Ret, epidermal growth factor receptor (EGFR) and platelet-derived growth factor receptor-alpha (PDGFR-alpha).

Type II cells expressed the glial fibrillary acid protein (GFAP), vimentin, the trophic factor bFGF and receptors p75, EGFR and PDGFR-alpha. Both types I and II cells exhibited a positive immunoreaction to markers of neural progenitor cells such as the polysialylated form of the neural cell adhesion molecule (PSA-NCAM) and nestin, respectively, suggesting that CB contain some immature cells even at the adult stage.

The possibility that these cells can be expanded and differentiated into mature neurons should be explored.

CITATION  Respir Physiol Neurobiol. 2008 Mar 20;161(1):95-9

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