Carbonic anhydrase 5 regulates acid-base homeostasis in zebrafish.

Autor: Postel R; Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, The Netherlands., Sonnenberg A
Jazyk: angličtina
Zdroj: PloS one [PLoS One] 2012; Vol. 7 (6), pp. e39881. Date of Electronic Publication: 2012 Jun 22.
DOI: 10.1371/journal.pone.0039881
Abstrakt: The regulation of the acid-base balance in cells is essential for proper cellular homeostasis. Disturbed acid-base balance directly affects cellular physiology, which often results in various pathological conditions. In every living organism, the protein family of carbonic anhydrases regulate a broad variety of homeostatic processes. Here we describe the identification, mapping and cloning of a zebrafish carbonic anhydrase 5 (ca5) mutation, collapse of fins (cof), which causes initially a collapse of the medial fins followed by necrosis and rapid degeneration of the embryo. These phenotypical characteristics can be mimicked in wild-type embryos by acetazolamide treatment, suggesting that CA5 activity in zebrafish is essential for a proper development. In addition we show that CA5 regulates acid-base balance during embryonic development, since lowering the pH can compensate for the loss of CA5 activity. Identification of selective modulators of CA5 activity could have a major impact on the development of new therapeutics involved in the treatment of a variety of disorders.
Databáze: MEDLINE