Cardiac proteomics reveals sex chromosome-dependent differences between males and females that arise prior to gonad formation.

Cardiac proteomics reveals sex chromosome-dependent differences between males and females that arise prior to gonad formation.
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DOI:
10.1016/j.devcel.2021.09.022
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发表时间:
2021-11-08
期刊:
影响因子:
11.8
通讯作者:
Conlon, Frank L.
Conlon, Frank L.
中科院分区:
生物学1区
文献类型:
--
作者:
Shi, Wei;Sheng, Xinlei;Dorr, Kerry M.;Hutton, Josiah E.;Emerson, James, I;Davies, Haley A.;Andrade, Tia D.;Wasson, Lauren K.;Greco, Todd M.;Hashimoto, Yutaka;Federspiel, Joel D.;Robbe, Zachary L.;Chen, Xuqi;Arnold, Arthur P.;Cristea, Ileana M.;Conlon, Frank L.

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心脏动态平衡和心脏病的性别差异被很好地记录下来,差异归因于性激素的作用。然而,研究表明,性染色体在性腺外发挥作用,而不需要性腺激素的调节。在这里,我们进行了转录和蛋白质组学分析,以确定雄性和雌性小鼠心脏之间的差异。我们证明,与目前的教条相反,心脏性别差异不仅受性激素控制,还通过性染色体机制控制。使用Turner综合征(XO)和Klinefelter(XXY)模型,我们发现性染色体途径是由X连锁基因剂量建立的。我们证明心脏性别分裂发生在心脏形成的最早阶段,也就是性腺形成之前的阶段。使用这些数据集,我们识别和定义了α-1B-糖蛋白(A1BG)的作用,表明A1BG的缺失会导致女性心脏缺陷,但不会导致男性。这些研究为研究性别偏见的心脏病状态提供了资源。
Sex disparities in cardiac homeostasis and heart disease are well documented with differences attributed to actions of sex hormones. However, studies have indicated sex chromosomes act outside of gonads to function without mediation by gonadal hormones. Here, we performed transcriptional and proteomics profiling to define differences between male-female mouse hearts. We demonstrate, contrary to current dogma, cardiac sex disparities are not only controlled by sex hormones, but also through a sex chromosome mechanism. Using Turner syndrome (XO) and Klinefelter (XXY) models, we find the sex chromosome pathway is established by X-linked gene dosage. We demonstrate cardiac sex dipartites occur at the earliest stages of heart formation, a period before gonad formation. Using these datasets, we identify and define a role for alpha-1B-glycoprotein (A1BG), showing loss of A1BG leads to cardiac defects in females but not males. These studies provide resources for studying sex-biased cardiac disease states.
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