• 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 ›› 2025, Vol. 27 ›› Issue (5): 643-648.DOI: 10.3969/j.issn.1671-2587.2025.05.009

• 临床输血 • 上一篇    下一篇

MOLP8细胞系用于消除达雷妥尤单抗对输血前相容性检测造成的干扰*

魏华, 赵静雅, 富文达, 凤琼, 穆士杰, 杨龙飞   

  1. 第四军医大学唐都医院,陕西西安 710038
  • 收稿日期:2025-09-02 修回日期:2025-09-10 出版日期:2025-10-20 发布日期:2025-10-11
  • 通讯作者: 杨龙飞,主要从事输血医学研究,(E-mail)tdyanglf@fmmu.edu.cn。共同通信作者:穆士杰,主要从事输血医学研究,(E-mail)musj1963@fmmu.edu.cn。
  • 作者简介:魏华,主要从事输血医学研究,(E-mail)tangduweihua@163.com。
  • 基金资助:
    *本课题受唐都医院学科助推计划(No.2024JSYX018)资助

Molp8 Cell Line Eliminating the Interference of Daratumumab on the Compatibility Test in Pretransfusion

WEI Hua, ZHAO Jingya, FU Wenda, FENG Qiong, MU Shijie, YANG Longfei   

  1. Department of Transfusion Medicine, Tangdu Hospital, the Fourth Military Medical University, Xi'an, Shaanxi province 710038
  • Received:2025-09-02 Revised:2025-09-10 Online:2025-10-20 Published:2025-10-11

摘要: 目的 CD38是临床上治疗多发性骨髓瘤的一个有效靶点,由于红细胞膜上CD38的表达,导致其与CD38单抗结合,对用药后患者的输血前相容性检测产生干扰,影响输血安全和时效。因此,本研究拟建立一种解决输血前相容性检测中抗-CD38单抗药物干扰的新方法。方法 首先通过数据库及流式细胞术筛选出高表达CD38的MOLP8细胞系,然后建立使用MOLP8细胞吸附去除干扰方法,优化吸附所需细胞量及吸附时间。通过微柱凝胶法进行抗体筛查,验证细胞吸附是否影响其他意外不规则抗体及血型抗体的检出。最后使用4%多聚甲醛固定细胞,探究MOLP8细胞系保存时间对消除干扰效果的影响。结果 流式细胞术结果显示MOLP8细胞上高表达CD38。经微柱凝胶法进行抗体筛查检测分析显示,临床标本30 μL与2×106/个MOLP8细胞在37 ℃共孵育5 min能够有效消除干扰,且未对不规则抗体中的抗D,抗K,抗Fyb,抗Jka抗体检测产生影响。MOLP8细胞经4%多聚甲醛保存14 d消除干扰效果依然良好。结论 本研究首次将MOLP8细胞用于解决输血前相容性检测中的抗-CD38单抗药物干扰。MOLP8细胞易于大批量制备,也可短期保存作为一种试剂使用,方法简单快捷,具有一定临床应用潜力。

关键词: 多发性骨髓瘤, 输血前相容性检测, CD38单抗, MOLP8细胞

Abstract: Objective CD38 is an effective target for clinical treatment of multiple myeloma. Due to the expression of CD38 on erythrocyte membrane, it combines with CD38 monoclonal antibody, which interferes with the compatibility test in pretransfusion and affects the safety in blood transfusion. Therefore, this study intends to establish a new method to solve the interference of anti-CD38 monoclonal antibody in the compatibility test. Methods Molp8 cell lines with high expression of CD38 were screened by database and flow cytometry, and then the method of removing interference by Molp8 cell adsorption was established to optimize the amount of cells and adsorption time. Antibody screening was performed by gel method to verify whether cell adsorption affected the detection of irregular antibodies and blood group antibodies. Finally, the cells were fixed with 4% paraformaldehyde to explore the effect of Molp8 cell line preservation time on the elimination of interference. Results flow cytometry showed that CD38 was highly expressed on Molp8 cells. The analysis of antibody screening by gel method showed that 30 μL of clinical samples incubated with 2×106 Molp8 cells at 37 ℃ for 5 min could effectively eliminate the interference, and did not affect the detection of anti-D, anti-K, anti Fyb and anti Jka antibodies in irregular antibodies. Molp8 cells were preserved in 4% paraformaldehyde for 14 days, and the interference elimination effect remains well. Conclusion Molp8 cells were used for the first time to solve the interference of anti-CD38 monoclonal antibody in the compatibility test before blood transfusion. Molp8 cells are easy to prepare and can also be stored for a short time as a reagent. The method is simple and fast, and has a certain potential for clinical application.

Key words: Multiple myeloma, Compatibility test pretransfusion, CD38 monoclonal antibody, Molp8 cells

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