中国药物警戒 ›› 2017, Vol. 14 ›› Issue (1): 4-6.

• 基础与临床研究 • 上一篇    下一篇

报告抗原腘窝淋巴结试验评价注射用双黄连的致敏性

刘兆华1, 姚景春2, 孙蓉3, 郭岩乳1, 曾繁光1   

  1. 1山东大学药学院,山东 济南 250012;
    2.鲁南制药集团股份有限公司,山东 临沂 273400;
    3.山东省中医研究院,山东 济南 250014
  • 收稿日期:2017-02-16 修回日期:2017-02-16 出版日期:2017-01-20 发布日期:2017-02-16
  • 作者简介:刘兆华,男,博士,高级工程师,药物免疫毒性和毒性病理学。
  • 基金资助:
    山东省自然科学基金(ZR2012HM056); 山东省自主创新及成果转化专项(2014ZZCX02104); 山东省泰山学者工程专项经费(Ns201511107)

Assessment of Immunosensitizing Potential of Shuanghuanglian for Injection Using Reporter Antigen Popliteal Lymph Node Assay

LIU Zhao-hua1, YAO Jing-chun2, SUN Rong3, GUO Yan-ru1, ZENG Fan-guang1   

  1. 1School of Pharmaceutical Sciences of Shandong University, Shandong Jinan 250012, China;
    2 Lunan Pharmaceutical Group Co. Ltd, Shandong Linyi 273400, China;
    3 Shandong Academy of Chinese Medicine, Shandong Jinan 250014, China
  • Received:2017-02-16 Revised:2017-02-16 Online:2017-01-20 Published:2017-02-16

摘要: 目的利用报告抗原腘窝淋巴结试验(reporter antigen popliteal lymph node assay,RA-PLNA)评价注射用双黄连(Shuanghuanglian for injection,SHLI)的致敏性,并探讨其发生机制。方法SPF级7~8周雌性BALB/c小鼠,按体重随机分为生理盐水空白对照组(Veh)、D-盐酸青霉胺阳性对照组(D-pen,1 mg/只)、SHLI高剂量组(H,5 mg/只)和低剂量组(L,1 mg/只),共4组,6只/组。将受试物分别与TNP-OVA(10 μg/只)混合,右侧足趾部皮下注射给予小鼠,终体积50 μL/只。药后7天处死动物,摘取两侧腘窝淋巴结(popliteal lymph node,PLN),称重,计算重量指数(weight index,WI);制备单细胞悬液,计算细胞指数(cells index,CI),比较各组的RA-PLNA 反应。ELISPOT检测PLN中的TNP特异性抗体分泌细胞(AFC)的数量和类型,流式细胞术检测PLN中淋巴细胞和巨噬细胞数量。与TNP-Ficoll混合时,另取小鼠,方法同上。结果分别与两种报告抗原一起注射后,高剂量的SHLI诱导明显的RA-PLNA阳性反应(组平均WI≥2或CI≥5);ELISPOT检测发现,仅高剂量SHLI和TNP-OVA一起注射明显增加TNP特异性AFC的数量,且分泌各类抗体的AFC均明显升高(P <0.05或P <0.01);流式细胞术检测发现高剂量SHLI与TNP-OVA一起可升高PLN中巨噬细胞的数量(P <0.05)。结论在BALB/c小鼠体内SHLI不会形成新的抗原表位,也不会活化特异性T细胞,提示SHLI本身可能不具有致敏潜能。

关键词: 报告抗原腘窝淋巴结试验, 注射用双黄连, 超敏反应

Abstract: ObjectiveTo explore mechanism of adverse drug reactions induced by Shuanghuanglian for injection (SHLI) and further evaluate the immunosensitizing potential of SHLI using reporter antigen popliteal lymph node assay (RA-PLNA) in BALB/c mice. MethodsSPF female BALB/c mice (7~8 weeks old at the onset of the experiment), were randomly assigned into control (Veh), 1 mg D-Penicillamine hydrochloride (D-pen), 1 mg (L) and 5 mg (H) SHLI group. There are 4 groups and each group has 6 animals. Articles, respectively mixed with 10 μg Trinitropheny-Ovabumin (TNP-OVA), were injected subcutaneously into right hind foot pad of mice in 50 μL volume. On day 7 after injection, animals were sacrificed, the untreated and treated lateral popliteal lymph node (PLN) were isolated, weighed and prepared into single-cell suspensions respectively, and then PLN weight index (WI) and cells index (CI) were calculated. RA-PLNA responses were observed. Trinitrophenyl-specific antibody forming cell (AFC) and the number of lymphocyte and macrophages in PLN were determined by Enzyme-linked immunospot assay (Elispot) and flow cytometry, respectively. When SHLI mixed with TNP-Ficoll using some another mice, the method is the same as TNP-OVA. Results5 mg SHLI mixed with TNP-OVA or TNP-Ficoll induced positive reaction in RA-PLNA. However, only when 5 mg SHLI co-injected with TNP-OVA, TNP-specific AFC were observed in Elispot assay. Simultaneously, the number of macrophages in PLN increased in flow cytometry. Moreover, whether 5 mg SHLI with TNP-Ficoll or 1 mg SHLI mixed with TNP-OVA or TNP-Ficoll failed to induce TNP-specific reaction. ConclusionSHLI lacked the intrinsic capacity to sensitize or stimulate immune responses in BALB/c mice. This may imply that ADR induced by SHLI in clinic was mainly a non-IgE-mediated anaphylactoid reaction rather than IgE-mediated hypersensitivity reactions.

Key words: reporter antigen popliteal lymph node assay, Shuanghuanglian for injection, hypersensitivity reactions.

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