Molecular Properties and Physiological Roles of Ion Channels in the Immune System.
Cahalan, Michael D. 1,2; Wulff, Heike 1; Chandy, K. George 1
[Article]
Journal of Clinical Immunology.
21(4):235-252, July 2001.
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The discovery of a diverse and unique set of ion channels in T lymphocytes has led to a rapidly growing body of knowledge about their functional roles in the immune system. Here we review the biophysical and molecular characterization of K , Ca2 , and Cl- channels in T lymphocytes. Potent and specific blockers, especially of K channels, have provided molecular tools to elucidate the involvement of voltage- and calcium-activated potassium channels in T-cell activation and cell-volume regulation. Their unique and differential expression makes lymphocyte K channels excellent pharmaceutical targets for modulating immune system function. This review surveys recent progress at the biophysical, molecular, and functional roles of the ion channels found in T lymphocytes.
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