Salinity-dependent expression of ncc2 in opercular epithelium and gill of mummichog (Fundulus heteroclitus)
Salinity-dependent expression of ncc2 in opercular epithelium and gill of mummichog (Fundulus heteroclitus)
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Mummichog (Fundulusheteroclitus) 鳃盖上皮和鳃中 ncc2 的盐度依赖性表达
DOI:
10.1007/s00360-020-01260-x
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Tipsmark, Christian K.
中科院分区:
文献类型:
--
作者:
Breves, Jason P.;Starling, Julie A.;Popovski, Christine M.;Doud, James M.;Tipsmark, Christian K.
Mummichogs (Fundulus heteroclitus) can tolerate abrupt changes in environmental salinity because of their ability to rapidly adjust the activities of ionocytes in branchial and opercular epithelia. In turn, the concerted expression of sub-cellular effectors of ion transport underlies adaptive responses to fluctuating salinities. Exposure to seawater (SW) stimulates the expression of Na+/K+/2Cl−cotransporter 1(nkcc1) andcystic fibrosis transmembrane regulator(cftr) mRNAs in support of ion extrusion by SW-type ionocytes. Given the incomplete understanding of how freshwater (FW)-type ionocytes actually operate in mummichogs, the transcriptional responses essential for ion absorption in FW environments remain unresolved. In a subset of species, a ‘fish-specific’ Na+/Cl−cotransporter denoted Ncc2 (Slc12a10) is responsible for the uptake of Na+and Cl−across the apical surface of FW-type ionocytes. In the current study, we identified anncc2transcript that is highly expressed in gill filaments and opercular epithelium of FW-acclimated mummichogs. Within 1 day of transfer from SW to FW,ncc2levels in both tissues increased in parallel with reductions innkcc1andcftr. Conversely, mummichogs transferred from FW to SW exhibited marked reductions inncc2concurrent with increases innkcc1andcftr. Immunohistochemical analyses employing a homologous antibody revealed apical Ncc2-immunoreactivity in Na+/K+-ATPase-immunoreactive ionocytes of FW-acclimated animals. Our combined observations suggest that Ncc2/ncc2-expressing ionocytes support the capacity of mummichogs to inhabit FW environments.
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影响因子:
2.8
作者:
William S. Marshall;S. Bryson;T. Luby
通讯作者:
T. Luby
DOI:
10.1007/s00424-014-1614-z
发表时间:
2015-08
期刊:
Pflügers Archiv - European Journal of Physiology
影响因子:
--
作者:
Carla Pérez-Rius;Héctor Gaitán-Peñas;R. Estévez;Alejandro Barrallo-Gimeno
通讯作者:
Carla Pérez-Rius;Héctor Gaitán-Peñas;R. Estévez;Alejandro Barrallo-Gimeno
影响因子:
2.8
作者:
Hiroi, Junya;Yasumasu, Shigeki;Kaneko, Toyoji
通讯作者:
Kaneko, Toyoji
影响因子:
2.7
作者:
Jia;P. Hwang
通讯作者:
P. Hwang
影响因子:
2.6
作者:
R. W. Griffith
通讯作者:
R. W. Griffith