Preparation of Monoclonal Antibodies for Development of Indirect Competitive ELISA for Salidroside Detection
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摘要:
目的 制备红景天苷单克隆抗体,建立红景天苷间接竞争酶联免疫方法,实现经济、高效、简便快速批量检测红景天药材及其制品中的红景天苷含量,为其商品化检测试剂盒开发奠定基础。 方法 用已经成功偶联的红景天苷-BSA作为免疫原,免疫6~8周龄Balb/c小鼠,ELISA检测血清效价,取效价最高的小鼠脾细胞与骨髓瘤细胞进行融合,经有限稀释法筛选、克隆后获得能够稳定产生红景天苷单克隆抗体的细胞株,体内诱生腹水制备大量红景天苷单克隆抗体。利用该抗体,建立红景天苷间接竞争酶联免疫分析方法并进行方法学确认,包括日内精密度、日间精密度、回收率等指标。 结果 建立的间接竞争酶联免疫吸附分析方法的线性范围为4.07~598.45 ng·mL-1,检测限IC10为1.77 ng·mL-1,半数抑制率IC50为49.33 ng·mL-1,日内精密度和日间精密度均小于4.5%,加标样品的平均回收率为94.3%,红景天苷含量检测结果与高效液相色谱法一致。 结论 本研究成功制备了红景天苷单克隆抗体,建立了间接竞争酶联免疫分析方法,能够用于为红景天苷含量的快速检测提供依据。 Abstract:Objective To prepare monoclonal antibody of salidroside for the development of an indirect competitive enzyme linked immunosorbent assay (ic-ELISA) methodology to accurately and rapidly detect salidroside in medicinal materials. Method Balb/c mice of 6-8 weeks old were immunized with the prepared salidroside-BSA. Specificity of the anti-serum was determined by ELISA. Spleen cells from the mice with positive result were fused with SP2/0 myeloma cells. Monoclonal hybridoma cells were screened by indirect ELISA with a limited dilution. Ascitic antibodies were induced and prepared from the positive cell line. Specific antibody against salidroside was used to establish ic-ELISA detection method that was verified by its specificity, precision and recovery rate on a known standard. Result The sensitivity of ic-ELISA was 49.33 ng·mL-1 with a liner range of 4.07-598.45 ng·mL-1. The detection limit of the method was 1.77 ng·mL-1. The newly developed method detected salidroside in spiked samples with a recovery rate of 94.3% within the designed range. The relative standard deviation of the measurements was less than 4.5% on both intra- and inter-day assays. The determination by ic-ELISA agreed with that obtained by HPLC. Conclusion The newly established ic-ELISA method based on the salidroside monoclonal antibody was considered appropriate for the detection. -
表 1 红景天苷标准溶液的检测精密度
Table 1. Precision of ic-ELISA on standard salidroside solution
红景天苷质量浓度
Salidroside concentration/(ng·mL-1)精密度Precision/% 日内Intra-day 日间Inter-day 1 1.46 3.20 10 4.41 1.11 100 3.10 4.03 1000 0.94 1.35 表 2 ic-ELISA法回收率检测结果
Table 2. Recovery rate of salidroside standard by ic-ELISA
加标浓度
Added concentration/(mg·g-1)实测值
Detection results/(mg·g-1)回收率
Recovery rate/%变异系数
Coefficientof variation/%0.1 0.69 92.5 2.2 1.0 1.55 93.4 3.6 10.0 10.34 97.1 3.9 表 3 ic-ELISA法和HPLC法测定样品的结果
Table 3. Detection of salidroside in specimen by ic-ELISA and HPLC
样品编号
Sample numberIc-ELISA测定结果
Detection result of ic-ELISA/(mg·g-1)HPLC测定结果
Detection result of HPLC/(mg·g-1)1号样品Sample 1 4.6 4.9 2号样品Sample 2 5.8 5.6 3号样品Sample 3 4.0 4.5 4号样品Sample 4 3.8 3.7 -
[1] WANG H, DING Y, ZHOU J, et al. The in vitro and in vivo antiviral effects of salidroside from Rhodiola rosea L. against coxsackievirus B3[J].Phytomedicine, 2009, 16(2-3):146-155. doi: 10.1016/j.phymed.2008.07.013 [2] 魏日胞, 王永新, 杨悦, 等.复方红景天胶囊对小鼠免疫调节作用的实验研究[J].中国实验血液学杂志, 2012, 20(40):187-191. http://d.old.wanfangdata.com.cn/Periodical/zgsyxyxzz201201041WEI R B, WANG Y X, YANG Y, et al. Extraction and determination of total phenol in luffa (Luffa cylindrical Roem.)[J]. Journal of experimental hematology, 2012, 20(40):187-191.(in Chinese) http://d.old.wanfangdata.com.cn/Periodical/zgsyxyxzz201201041 [3] WU T, ZHOU H, JIN Z, et al. Cardioprotection of salidroside from ischemia/reperfusion injury by increasing N-acetylgluco- samine linkage to cellular proteins[J].Eur J Pharmacol, 2009, 613(1-3):93-99. doi: 10.1016/j.ejphar.2009.04.012 [4] 王芸, 李正, 段亚飞, 等.红景天提取物对凡纳滨对虾抗氧化系统及抗低盐度胁迫的影响[J].南方水产科学, 2018, 14(1):9-19. http://d.old.wanfangdata.com.cn/Periodical/nfsc201801002WANG Y, LI Z, DUAN Y F, et al. Effect of dietary Rhodiola rosea extract on antioxidant system and anti-low salinity stress of Litopenaeus vannamei[J]. South China Fisheries Science, 2018, 14(1):9-19.(in Chinese) http://d.old.wanfangdata.com.cn/Periodical/nfsc201801002 [5] 张琛, 杨长庚, 文华, 等.饲料中添加红景天对吉富罗非鱼耐低温特性的影响[J].淡水渔业, 2016, 46(5):75-80. doi: 10.3969/j.issn.1000-6907.2016.05.013ZHANG C, YANG C G, WEN H, et al. Effects of Rhodiola sachaliensis on improving low-temperature tolerance characteristics of Tilapia (Oreochromis niloticus)[J]. Freshwater Fisheries, 2016, 46(5):75-80.(in Chinese) doi: 10.3969/j.issn.1000-6907.2016.05.013 [6] 李龙, 王宏辉, 刘锁珠, 等.红景天对高原缺氧条件下肉鸡免疫功能的影响[J].中国家禽, 2013, 35(2):19-21. doi: 10.3969/j.issn.1004-6364.2013.02.006LI L, WANG H H, LIU S Z, et al. Extraction and determination of total phenol in luffa (Luffa cylindrical Roem.)[J]. China Poultry, 2013, 35(2):19-21.(in Chinese) doi: 10.3969/j.issn.1004-6364.2013.02.006 [7] 王洋, 张璞, 于涛, 等.高效液相色谱法测定红景天甙含量方法的研究[J].植物研究, 2001, 21(1):113-115. doi: 10.3969/j.issn.1673-5102.2001.01.029WANG Y, ZHANG P, YU T, et al. Extraction and determination of total phenol in luffa (Luffa cylindrical Roem.)[J]. Bulletin of Botanical Research, 2001, 21(1):113-115.(in Chinese) doi: 10.3969/j.issn.1673-5102.2001.01.029 [8] 林建阳, 续晋洁, 林秋婕, 等.LC-MS/MS法测定红景天苷在大鼠的血药浓度[J].中国临床药理学杂志, 2013, 29(11):862-864. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zglcylxzz201311020LIN J Y, XU J J, LIN Q J, et al. Extraction and determination of total phenol in luffa (Luffa cylindrical Roem.)[J]. The Chinese Journal of Clinical Pharmacology, 2013, 29(11):862-864.(in Chinese) http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zglcylxzz201311020 [9] 温时媛, 周江韬, 陈燕燕, 等.红景天药材的H-NMR指纹图谱研究[J].中国中药杂志, 2015, 40(13):2629-2633. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgzyzz201513026WEN S Y, ZHOU J T, CHEN Y Y, et al. Extraction and determination of total phenol in luffa (Luffa cylindrical Roem.)[J]. China Journal of Chinese Materia Medica, 2015, 40(13):2629-2633.(in Chinese) http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgzyzz201513026 [10] 金贞姬, 杨长青.高效液相色谱法测定高山红景天超微粉中红景天苷和苷元的含量[J].中国医院药学杂志, 2012, 32(4):313-314. http://d.old.wanfangdata.com.cn/Periodical/zgyyyx201204023JIN Z J, YANG C Q. Extraction and determination of total phenol in luffa (Luffa cylindrical Roem.)[J]. Chinese Journal of Hospital Pharmacy, 2012, 32(4):313-314.(in Chinese) http://d.old.wanfangdata.com.cn/Periodical/zgyyyx201204023 [11] 王伟, 胡立新, 伏光华.红景天苷人工抗原的合成与鉴定[J].福建农业学报, 2018, 38(5):540-543. doi: 10.19303/j.issn.1008-0384.2018.05.016WANG W, HU L X, FU G H, et al. Synthesis and identification of artificial antigen of Salidroside[J]. Fujian Journal of Agricultural Sciences, 2018, 38(5):540-543.(in Chinese) doi: 10.19303/j.issn.1008-0384.2018.05.016 [12] 于生兰, 欧阳臻, 徐加兵, 等.黄芪甲苷单克隆抗体的制备及鉴定[J].天然产物研究与开发, 2013, 25:1568-1571. http://d.old.wanfangdata.com.cn/Periodical/trcwyjykf201311023YU S L, OUYANG Z, XU J B, et al. Prepration and Identification of Monoclonal Antibody against Astragaloside IV[J]. Nat Prod Res Dev, 2013, 25:1568-1571.(in Chinese) http://d.old.wanfangdata.com.cn/Periodical/trcwyjykf201311023 [13] 张越, 屈会化, 吴婷婷, 等.甘草酸单克隆抗体的制备与鉴定[J].药物分析杂志, 2013, 33(5):770-774. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=ywfxzz201305009ZHANG Y, QU H H, WU T T, et al. Preparation and identification of monoclonal antibodies against glycyrrhizic acid[J]. Chin J Pharm Anal, 2013, 33(5):770-774.(in Chinese) http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=ywfxzz201305009 [14] 秦高风.柴胡皂苷D人工抗原的合成及单克隆抗体的制备[D].北京: 北京中医药大学, 2017. http://cdmd.cnki.com.cn/Article/CDMD-10026-1017183707.htmQIN G F. The physio-chemical mechanism and differential expressions of proteins for the browning of fresh-cut lotus root[D].Beijing: Beijing University of Chinese medicine, 2017.(in Chinese) http://cdmd.cnki.com.cn/Article/CDMD-10026-1017183707.htm [15] 赛佳洋, 屈会化, 冯会宾, 等.人参皂苷Re人工抗原的合成及单克隆细胞株的筛选[J].中国药学杂志, 2014, 49(13):1104-1108. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgyxzz201413003SAI J Y, QU H H, FENG H B, et al. Extraction and determination of total phenol in luffa (Luffa cylindrical Roem.)[J]. Chinese Pharmaceutical Journal, 2014, 49(13):1104-1108.(in Chinese) http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgyxzz201413003 [16] 张波.基于单克隆抗体的金银花指标性成分快速检测技术研究[D].济南: 山东中医药大学, 2016. http://cdmd.cnki.com.cn/Article/CDMD-10441-1016321615.htmZHANG B. Rapid determination of the index component of flos lonicerae japonicae based on monoclonal antibody technology[D].Jinan: Shandong University of Traditional Chinese Medicine, 2016.(in Chinese) http://cdmd.cnki.com.cn/Article/CDMD-10441-1016321615.htm [17] 苏歆, 屈会化, 赵琰, 等.基于黄芩苷单克隆抗体的ELISA快速检测方法的建立[J].药物分析杂志, 2013, 33(6):946-949. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=ywfxzz201306008SU X, QU H H, ZHAO Y, et al. Establishment of quick enzyme-linked immunosorbent assay with monoclonal antibody against baicalin[J]. Chin J Pharm Anal, 2013, 33(6):946-949.(in Chinese) http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=ywfxzz201306008 [18] 张越.甘草酸、柚皮苷单克隆抗体的制备及其酶联免疫分析方法的建立[D].北京: 北京中医药大学, 2013. http://cdmd.cnki.com.cn/Article/CDMD-10026-1013204384.htmZHANG Y. Preparation of naringin and glycyrrhizic monoclonal antibodies and establish study of enzyme linked immunosorbent assays[D].Beijing: Beijing University of Chinese medicine, 2013. (in Chinese) http://cdmd.cnki.com.cn/Article/CDMD-10026-1013204384.htm [19] 冯盛岚.一种新柚皮苷单克隆抗体的制备与应用[D].北京: 北京中医药大学, 2015. http://cdmd.cnki.com.cn/Article/CDMD-10026-1015386185.htmFENG S L. Preparation and application study of naringin monoclonal antibodies[D].Beijing: Beijing University of Chinese medicine, 2015.(in Chinese) http://cdmd.cnki.com.cn/Article/CDMD-10026-1015386185.htm