2026-04-17T14:57:57Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1716872025-12-05T09:34:44Zcom_2072_1057col_2072_478799col_2072_478916col_2072_478917

00925njm 22002777a 4500 dc Elorza Vidal, Xabier author Gaitán-Peñas, Héctor author Estévez Povedano, Raúl author 2020-11-02T12:52:40Z 2020-11-02T12:52:40Z 2019-03-01 2020-11-02T12:52:41Z Astrocytes are the most abundant cell type in the CNS (central nervous system). They exert multiple functions during development and in the adult CNS that are essential for brain homeostasis. Both cation and anion channel activities have been identified in astrocytes and it is believed that they play key roles in astrocyte function. Whereas the proteins and the physiological roles assigned to cation channels are becoming very clear, the study of astrocytic chloride channels is in its early stages. In recent years, we have moved from the identification of chloride channel activities present in astrocyte primary culture to the identification of the proteins involved in these activities, the determination of their 3D structure and attempts to gain insights about their physiological role. Here, we review the recent findings related to the main chloride channels identified in astrocytes: the voltage-dependent ClC-2, the calcium-activated bestrophin, the volume-activated VRAC (volume-regulated anion channel) and the stress-activated Maxi-Cl−. We discuss key aspects of channel biophysics and structure with a focus on their role in glial physiology and human disease. Astròcits Canals de clorur Malalties Fisiologia Astrocytes Chloride channels Diseases Physiology Chloride channels in astrocytes: structure, roles in brain homeostasis and implications in disease