K+ channel mutations in adrenal aldosterone-producing adenomas and hereditary hypertension.
K+ channel mutations in adrenal aldosterone-producing adenomas and hereditary hypertension.
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DOI:
10.1126/science.1198785
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发表时间:
2011-02-11
期刊:
影响因子:
--
通讯作者:
Lifton RP
中科院分区:
文献类型:
--
作者:
Choi M;Scholl UI;Yue P;Björklund P;Zhao B;Nelson-Williams C;Ji W;Cho Y;Patel A;Men CJ;Lolis E;Wisgerhof MV;Geller DS;Mane S;Hellman P;Westin G;Åkerström G;Wang W;Carling T;Lifton RP
Endocrine tumors such as aldosterone-producing adrenal adenomas (APAs), a cause of severe hypertension, feature constitutive hormone production and unrestrained cell proliferation; the mechanisms linking these events are unknown. We identify two recurrent somatic mutations in and near the selectivity filter of the potassium (K+) channel KCNJ5 that are present in 8 of 22 human APAs studied. Both produce increased sodium (Na+) conductance and cell depolarization, which in adrenal glomerulosa cells produces calcium (Ca2+) entry, the signal for aldosterone production and cell proliferation. Similarly, we identify an inherited KCNJ5 mutation that produces increased Na+ conductance in a Mendelian form of severe aldosteronism and massive bilateral adrenal hyperplasia. These findings explain pathogenesis in a subset of patients with severe hypertension and implicate loss of K+ channel selectivity in constitutive cell proliferation and hormone production.
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影响因子:
56.9
作者:
Doyle, DA;Cabral, JM;MacKinnon, R
通讯作者:
MacKinnon, R
DOI:
10.1126/science.1164382
发表时间:
2008-09-26
期刊:
Science (New York, N.Y.)
影响因子:
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通讯作者:
Kinzler KW
影响因子:
39.2
作者:
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通讯作者:
Bravo, EL
DOI:
10.1126/science.1180310
发表时间:
2009-12-18
期刊:
Science (New York, N.Y.)
影响因子:
--
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Tao X;Avalos JL;Chen J;MacKinnon R
通讯作者:
MacKinnon R
影响因子:
3.4
作者:
HEGINBOTHAM, L;LU, Z;MACKINNON, R
通讯作者:
MACKINNON, R