Placental chloride channels: a review.

Full Abstract

The human placental syncytiotrophoblast (hSTB) is a polarized epithelial structure, that forms the main barrier to materno-fetal exchange. The chloride (Cl(-)) channels in other epithelial tissues contribute to several functions, such as maintenance of the membrane potential, volume regulation, absorption and secretion. Additionally, the contributions of Cl(-) channels to these functions are demonstrated by certain diseases and knock-out animal models. There are multiple lines of evidence for the presence of Cl(-) channels in the hSTB, which could contribute to different placental functions. However, both the mechanism by which these channels are involved in the physiology of the placenta, and their molecular identities are still unclear. Furthermore, a correlation between altered Cl(-) channels functions and pathological pregnancies is beginning to emerge. This review summarizes recent developments on conductive placental chloride transport, and discusses its potential implications for placental physiology.

Author information

Author/s: Riquelme, G (G);

Affiliation: Laboratorio de Electrofisiología de Membranas, Programa de Fisiología y Biofísica, ICBM, Facultad de Medicina, Universidad de Chile, Casilla 70005, Santiago 7, Chile. griquelm(-atsign-)med.uchile.cl

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Review

Journal: Placenta (Placenta), published in England. (Language: eng)

Reference: 2009-Aug; vol 30 (issue 8) : pp 659-69

Dates: Created 2009/07/28; Completed 2009/10/21;

PMID: 19604577, status: MEDLINE (last retrieval date: 10/21/2009, IMS Date: )

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