Association Study of TAF1 Variants in Parkinson's Disease.

Association Study of TAF1 Variants in Parkinson's Disease.
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TAF1 变异与帕金森病的关联研究

DOI:
10.3389/fnins.2022.846095
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发表时间:
2022
影响因子:
4.3
通讯作者:
Guo, Jifeng
Guo, Jifeng
中科院分区:
医学2区
文献类型:
--
作者:
Zeng, Qian;Pan, Hongxu;Zhao, Yuwen;Wang, Yige;Xu, Qian;Tan, Jieqiong;Yan, Xinxiang;Li, Jinchen;Tang, Beisha;Guo, Jifeng

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越来越多的证据表明性别是帕金森病(PD)发展的一个重要因素,但性染色体上的基因与帕金森病之间的关联仍不明确。TAF1是位于X染色体上的一个基因,已知其可导致X连锁综合征性智力障碍 - 33(MRXS33)和X连锁肌张力障碍 - 帕金森综合征(XDP)。在本研究中,我们对中国人群中的1917例早发性或家族性帕金森病患者和1652例对照进行了全外显子组测序(WES)。我们在两名无亲缘关系的男性患者中检测到一个半合子移码变异c.29_53dupGGA(CAG)2CTACCATCA(CTG)2C(p.A19Dfs*50)。进一步的分离分析显示,一名未患病的家庭成员携带此变异,这表明该变异的外显率可能与年龄有关且不完全。为了验证TAF1对帕金森病的影响,我们按性别分别进行了遗传分析。通过最优序列核关联(SKAT - O)检验对罕见变异进行分析,结果显示男性帕金森病患者和对照之间的变异负荷存在名义上的显著差异(2.01%对1.38%,p = 0.027)。在女性组中,本研究中没有任何变异类型与帕金森病显示出显著关联。总之,我们发现TAF1中的罕见变异可能与帕金森病有关,但还需要进一步的遗传和功能分析。
Increasing evidence reveals sex as an important factor in the development of Parkinson’s disease (PD), but associations between genes on the sex chromosomes and PD remain unknown. TAF1 is a gene located on the X chromosome which is known to cause X-linked syndromic mental retardation-33 (MRXS33) and X-linked Dystonia-Parkinsonism (XDP). In this study, we conducted whole-exome sequencing (WES) among 1,917 patients with early-onset or familial PD and 1,652 controls in a Chinese population. We detected a hemizygous frameshift variant c.29_53dupGGA(CAG)2CTACCATCA(CTG)2C (p.A19Dfs*50) in two unrelated male patients. Further segregation analysis showed an unaffected family member carried this variant, which suggested the penetrance of the variant may be age-related and incomplete. To verify the effects of TAF1 on PD, genetic analyses were carried separately by gender. Analysis of rare variants by optimal sequence kernel association (SKAT-O) test showed a nominally significant difference in variant burden between the male PD patients and controls (2.01 vs. 1.38%, p = 0.027). In the female group, none of the variant types showed significant association with PD in this study. In conclusion, we found rare variants in TAF1 may be implicated in PD, but further genetic and functional analyses were needed.
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