首都医科大学学报 ›› 2017, Vol. 38 ›› Issue (6): 879-883.doi: 10.3969/j.issn.1006-7795.2017.06.020

• Alpha-突触核蛋白的致病机制 • 上一篇    下一篇

糖尿病患者血浆减少α-突触核蛋白的磷酸化和寡聚化

郑凇杨1,2, 李昕1,2,3,4, 杨巍巍1,2,3,4, 李旭冉1,2, 李旭颖1,2, 于文娇1,2, 于顺1,2,3,4   

  1. 1. 首都医科大学宣武医院神经生物学研究室, 北京市老年病医疗研究中心, 北京 100053;
    2. 首都医科大学帕金森病临床诊疗与研究中心, 北京 100053;
    3. 帕金森病北京市重点实验室和教育部神经变性病重点实验室, 北京 100053;
    4. 国家老年疾病临床医学研究中心, 北京 100053
  • 收稿日期:2017-10-23 出版日期:2017-11-21 发布日期:2017-12-16
  • 通讯作者: 于顺 E-mail:yushun103@163.com
  • 基金资助:
    国家自然科学基金(81371200,81071014,81401042),北京市医院管理局"使命"计划专项经费资助(SML20150803);北京市科学技术委员会资助(Z161100005116011,Z171100000117013);北京市卫生和计划生育委员会"老年重大疾病关键技术研究"(PXM2017_026283_000002)。

Decreased α-synuclein phosphorylation and oligomerization in the plasma of patients with type 2 diabetes

Zheng Songyang1,2, Li Xin1,2,3,4, Yang Weiwei1,2,3,4, Li Xuran1,2, Li Xuying1,2, Yu Wenjiao1,2, Yu Shun1,2,3,4   

  1. 1. Department of Neurobiology, Xuanwu Hospital, Capital Medical University, Beijing Institute of Geriatrics, Beijing 100053, China;
    2. Clinical Center for Parkinson's Disease, Capital Medical University, Beijing 100053, China;
    3. Beijing Key Laboratory for Parkinson's Disease and Key Laboratory of Neurodegenerative Diseases, Ministry of Education, Beijing 100053, China;
    4. National Clinical Research Center for Geriatric Disorders, Beijing 100053, China
  • Received:2017-10-23 Online:2017-11-21 Published:2017-12-16
  • Supported by:
    This study was supported by National Natural Science Foundation of China (81371200, 81071014, 81401042); Beijing Municipal Administration of Hospitals' Mission Plan (SML20150803); Beijing Municipal Science & Technology Commission (Z161100005116011,Z171100000117013); Beijing Municipal commission of Health and Family Planning (PXM2017_026283_000002).

摘要: 目的 研究2型糖尿病(type 2 diabetes,T2D)患者血浆对α-突触核蛋白(α-synuclein,α-Syn)磷酸化和寡聚化聚集的影响。方法 收集首都医科大学宣武医院内分泌科T2D住院患者70例,另收集年龄和性别与之匹配的健康志愿者70例作为对照组。采集抗凝血,并分离血浆。将基因重组人α-Syn在患者和对照志愿者血浆中振荡孵育,ELISA法检测各组人群血浆中寡聚化和磷酸化α-Syn形成量。结果 T2D患者血浆中寡聚化和磷酸化α-Syn形成量较对照组均有显著降低(P<0.05),且其与年龄有相关性。结论 T2D患者血浆以年龄依赖的方式减少寡聚化和磷酸化α-Syn的形成。

关键词: α-突触核蛋白, 2型糖尿病, 血浆, 磷酸化, 寡聚化

Abstract: Objective To investigate the effect of the plasma of patients with type 2 diabetes (T2D) patient on the formation of oligomeric and phosphorylated α-synuclein (α-Syn).Methods A total of 70 hospitalized patients with T2D and 70 age-and sex-matched healthy control subjects were recruited. Blood plasmas were collected and recombinant human α-Syn was incubated with the plasma. ELISA was used to measure the levels of oligomeric and phosphorylated α-syn formed in the plasma. Results The levels of oligomeric and phosphorylated α-syn in the plasma of T2D patients were significantly lower than those in the plasma of healthy controls (P<0.05), which was positively correlated with age.Conclusion Compared with control plasma, the plasma from T2D patients decreases α-syn oligomerization and phosphorylation in an age-dependent manner.

Key words: α-synuclein, type 2 diabetes, plasma, phosphorylation, oligomerization

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