• 中国科学论文统计源期刊
  • 中国科技核心期刊
  • 美国化学文摘(CA)来源期刊
  • 日本科学技术振兴机构数据库(JST)

临床输血与检验 ›› 2024, Vol. 26 ›› Issue (3): 308-314.DOI: 10.3969/j.issn.1671-2587.2024.03.003

• 基础研究 • 上一篇    下一篇

致敏红细胞BPGM酶活性降低对红细胞携氧/释氧能力的影响研究*

孟炜程, 陈要臻, 王雅芬, 安宁, 刘志新, 吴晓双, 王斐, 胡兴斌   

  1. 空军军医大学第一附属医院输血科,陕西西安 710032
  • 收稿日期:2024-02-26 出版日期:2024-06-20 发布日期:2024-06-24
  • 通讯作者: 胡兴斌,主要从事输血医学研究,(E-mail)hxbyqh@163.com。
  • 作者简介:孟炜程,主要从事临床检验诊断学,(E-mail)mf1151483515@163.com。
  • 基金资助:
    *国家自然科学基金(No.82370230),陕西省自然科学基础研究计划(No.2021JM-217)资助

The Impact of Reduced Bisphosphoglycerate Mutase(BPGM)Enzyme Activity in Sensitized Red Blood Cells on Oxygen Carrying/Releasing Capacity

MENG Weicheng, CHEN Yaozhen, WANG Yafen, AN Ning, LIU Zhixin, WU Xiaoshuang, WANG Fei, HU Xingbin   

  1. Department of Blood Transfusion, Xijing Hospital, Air Force Military Medical University, Xi'an 710032
  • Received:2024-02-26 Online:2024-06-20 Published:2024-06-24

摘要: 目的 分析致敏红细胞的携氧/释氧能力并初步探讨出现异常的原因。方法 用微柱凝胶卡检测致敏红细胞,用携氧/释氧功能评价装置分析自身免疫性溶血性贫血(AIHA)和新生儿溶血病(HDN)患者的致敏红细胞的携氧/释氧能力。使用健康成人的血浆构建输血性溶血反应小鼠模型,对照组给予PBS,记录小鼠负重游泳至力竭的时间,分离小鼠红细胞并分析其携氧/释氧能力,利用蛋白组学对小鼠溶血组与正常组血浆中差异蛋白进行GO和KEGG富集分析。采用ELISA方法检测致敏红细胞BPGM酶活性和2,3-DPG含量。结果 与相应对照组相比,AIHA、HDN和输血性溶血反应模型小鼠的红细胞的氧解离曲线均发生左移和P50下降。溶血模型小鼠的负重游泳时间明显缩短,蛋白组学筛选结果发现红细胞BPGM异常,致敏红细胞BPGM酶活性降低且细胞内2,3-DPG含量下降。结论 致敏红细胞BPGM酶活性降低导致红细胞释放氧气能力下降。

关键词: 红细胞, 溶血, BPGM, 2,3-DPG

Abstract: Objective To explore the underlying causes for the observed anomalies, the oxygen-carrying/releasing capacity of sensitized red blood cells (RBCs) was analyzed . Methods The sensitized red blood cells were detected through microcolumn gel cards, and an oxygen-carrying/releasing assessment device was employed to evaluate the oxygen-carrying/releasing capacity of sensitized RBCs in patients with autoimmune hemolytic anemia (AIHA) and hemolytic disease of the newborn (HDN). We constructed a transfusion-induced hemolytic reaction mouse model using plasma from healthy adults, while the control group received PBS. Record the time until exhaustion during weight-loaded swimming in mice and analyze the oxygen-carrying/releasing capacity of isolated mouse RBCs. Perform GO and KEGG enrichment analysis on differentially expressed proteins related to hemolysis and the control group using proteomics. Measure BPGM enzyme activity and 2,3-DPG levels in sensitized RBCs using ELISA. Results Compared to the corresponding control groups, the oxygen dissociation curves in AIHA, HDN, and transfusion-induced hemolytic reaction model mice exhibited a left shift and decreased P50. The weight-loaded swimming time in hemolytic model mice was significantly shortened. Proteomic screening revealed abnormalities in BPGM, with decreased BPGM enzyme activity and a decline in intracellular 2,3-DPG content. Conclusion The reduced activity of BPGM in sensitized RBCs led to a decline in their oxygen-releasing capacity.

Key words: Red blood cells, Hemolysis, BPGM, 2,3-DPG

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