Two missense mutations in KCNQ1 cause pituitary hormone deficiency and maternally inherited gingival fibromatosis.
Two missense mutations in KCNQ1 cause pituitary hormone deficiency and maternally inherited gingival fibromatosis.
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DOI:
10.1038/s41467-017-01429-z
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发表时间:
2017-11-03
影响因子:
16.6
通讯作者:
Raivio T
中科院分区:
文献类型:
--
作者:
Tommiska J;Känsäkoski J;Skibsbye L;Vaaralahti K;Liu X;Lodge EJ;Tang C;Yuan L;Fagerholm R;Kanters JK;Lahermo P;Kaunisto M;Keski-Filppula R;Vuoristo S;Pulli K;Ebeling T;Valanne L;Sankila EM;Kivirikko S;Lääperi M;Casoni F;Giacobini P;Phan-Hug F;Buki T;Tena-Sempere M;Pitteloud N;Veijola R;Lipsanen-Nyman M;Kaunisto K;Mollard P;Andoniadou CL;Hirsch JA;Varjosalo M;Jespersen T;Raivio T
Familial growth hormone deficiency provides an opportunity to identify new genetic causes of short stature. Here we combine linkage analysis with whole-genome resequencing in patients with growth hormone deficiency and maternally inherited gingival fibromatosis. We report that patients from three unrelated families harbor either of two missense mutations, c.347G>T p.(Arg116Leu) or c.1106C>T p.(Pro369Leu), in KCNQ1, a gene previously implicated in the long QT interval syndrome. Kcnq1 is expressed in hypothalamic GHRH neurons and pituitary somatotropes. Co-expressing KCNQ1 with the KCNE2 β-subunit shows that both KCNQ1 mutants increase current levels in patch clamp analyses and are associated with reduced pituitary hormone secretion from AtT-20 cells. In conclusion, our results reveal a role for the KCNQ1 potassium channel in the regulation of human growth, and show that growth hormone deficiency associated with maternally inherited gingival fibromatosis is an allelic disorder with cardiac arrhythmia syndromes caused by KCNQ1 mutations. Growth retardation is most commonly caused by genetic defects in the growth hormone pathway. Here, in families with growth retardation and gingival fibromatosis, the authors identify mutations in the potassium channel gene KCNQ1 that cause electrophysiological aberrations and altered ACTH secretion in vitro.
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影响因子:
7.8
作者:
Giacobini, Paolo;Messina, Andrea;Morello, Francesca;Ferraris, Nicoletta;Corso, Simona;Penachioni, Junia;Giordano, Silvia;Tamagnone, Luca;Fasolo, Aldo
通讯作者:
Fasolo, Aldo
影响因子:
3.5
作者:
Abbott GW
通讯作者:
Abbott GW
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
DOI:
10.1016/j.trsl.2012.08.005
发表时间:
2013-01
期刊:
Translational research : the journal of laboratory and clinical medicine
影响因子:
--
作者:
Giudicessi JR;Ackerman MJ
通讯作者:
Ackerman MJ
影响因子:
30.8
作者:
Kortuem, Fanny;Caputo, Viviana;Kutsche, Kerstin
通讯作者:
Kutsche, Kerstin