TRPV3 channels mediate strontium-induced mouse-egg activation.
TRPV3 channels mediate strontium-induced mouse-egg activation.
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DOI:
10.1016/j.celrep.2013.11.007
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发表时间:
2013-12-12
期刊:
影响因子:
8.8
通讯作者:
Clapham DE
中科院分区:
文献类型:
--
作者:
Carvacho I;Lee HC;Fissore RA;Clapham DE
In mammals, calcium influx is required for oocyte maturation and egg activation. The molecular identities of the calcium-permeant channels that underlie the initiation of embryonic development are not established. Here, we describe a Transient Receptor Potential (TRP) ion channel current activated by TRP agonists that is absent in TrpV3−/− eggs. TRPV3 current is differentially expressed during oocyte maturation, reaching a peak of maximum density and activity at metaphase of meiosis II (MII), the stage of fertilization. Selective activation of TRPV3 channels provokes egg activation by mediating massive calcium entry. Widely used to activate eggs, strontium application is known to yield normal offspring in combination with somatic cell nuclear transfer. We show that TRPV3 is required for strontium influx, as TrpV3−/− eggs failed to permeate Sr2+ or undergo strontium-induced activation. We propose that TRPV3 is the major mediator of calcium influx in mouse eggs and is a putative target for artificial egg activation.
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DOI:
10.1085/jgp.200910388
发表时间:
2011-03
期刊:
The Journal of general physiology
影响因子:
--
作者:
Doerner JF;Hatt H;Ramsey IS
通讯作者:
Ramsey IS
影响因子:
3.6
作者:
JAFFE, LA;CROSS, NL
通讯作者:
CROSS, NL
影响因子:
2.7
作者:
Ducibella, T;Huneau, D;Ozil, JP
通讯作者:
Ozil, JP
影响因子:
4.8
作者:
Hu, HZ;Gu, QH;Zhu, MX
通讯作者:
Zhu, MX
影响因子:
5.6
作者:
Hu, Hong-Zhen;Xiao, Rui;Zhu, Michael X.
通讯作者:
Zhu, Michael X.