浙江农业科学 ›› 2026, Vol. 67 ›› Issue (10): 2380-2384.DOI: 10.16178/j.issn.0528-9017.20250604

• 药用植物 • 上一篇    下一篇

毛棉杜鹃花不同萃取部位及组分的免疫抑制活性

易礼江1(), 罗勇志1, 谭海波2, 赖佳潆2, 段芳芳2, 杨诗敏3, 张蒙3()   

  1. 1.广东省沙头角林场(广东梧桐山国家森林公园管理处),广东 深圳 518004
    2.中国科学院华南植物园,广东 广州 510650
    3.广州林芳生态科技有限公司,广东 广州 510520
  • 收稿日期:2025-08-23 出版日期:2026-10-11 发布日期:2026-10-19
  • 通讯作者: 张蒙
  • 作者简介:张蒙,E-mail:1057048914@qq.com。
    易礼江,主要从事林木资源研发与森林管护建设等工作。E-mail:yilijiang@qq.com。

Immunosuppressive activity of different extracts and components of Rhododendron moulmainense flower

YI Lijiang1(), LUO Yongzhi1, TAN Haibo2, LAI Jiaying2, DUAN Fangfang2, YANG Shimin3, ZHANG Meng3()   

  1. 1.Shatoujiao Forestry Farm,Guangdong Province,Management Office of Wutong Mountain National Forest Park,Shenzhen 518004,Guangdong
    2.South China Botanical Garden,Chinese Academy of Sciences,Guangzhou 510650,Guangdong
    3.Guangzhou Linfang Ecology Co. ,Ltd. ,Guangzhou 510520,Guangdong
  • Received:2025-08-23 Online:2026-10-11 Published:2026-10-19
  • Contact: ZHANG Meng

摘要:

毛棉杜鹃(Rhododendron moulmainense)具有收敛止血、消肿止痛、活血化瘀、祛风除湿、淡斑美白等功效。为探究毛棉杜鹃不同萃取部位及组分的制备方法和免疫抑制活性,以毛棉杜鹃的干燥花朵微粉为原料,以体积分数95%的乙醇为提取剂,在60 ℃、料液比1∶10的条件下冷凝回流提取2 h,过滤收集提取液,合并上述提取液进行真空、减压浓缩,得到毛棉杜鹃花提取浸膏。乙酸乙酯萃取部位EADJ-H在质量浓度为100 μg·mL-1时对刀豆蛋白A诱导的T淋巴细胞增殖和脂多糖诱导的B淋巴细胞增殖的抑制率分别为73.87%和56.97%,且对正常小鼠的脾淋巴细胞无细胞毒性。综上可知,毛棉杜鹃花提取物具有较强的免疫抑制活性,在开发新型免疫抑制剂方面具有潜在的应用价值。

关键词: 毛棉杜鹃, 活性成分, 提取, 药理活性, 免疫抑制, 淋巴细胞增殖, 细胞毒性

Abstract:

Rhododendron moulmainense has the effects of astringent,hemostasis,swelling and pain relief,promoting blood circulation and removing blood stasis,dispelling wind and removing dampness,lightening spots and whitening. To explore the preparation methods and immunosuppressive activities of different extraction parts and components of R. moulmainense,the dried flower powder of R.moulmainense was used as raw material,and the volume fraction of 95% ethanol was used as the extraction agent under the condition of 60 ℃ and solid-liquid ratio of 1∶10,and the condensation reflux extraction was carried out for 2 h. The extract was collected by filtration,and concentrated under vacuum and pressure to obtain the extract of R.moulmainense. At a mass concentration of 100 μg· mL-1,the ethyl acetate extract EADJ-H exhibited inhibition rates of 73.87% and 56.97% on T lymphocyte proliferation induced by concanavalin A and B lymphocyte proliferation induced by lipopolysaccharide,respectively,and had no cytotoxicity to spleen lymphocytes of normal mouse,indicating that the extract of R.moulmainense had strong immunosuppressive activity,and had potential application value in the development of new immunosuppressive agents.

Key words: Rhododendron moulmainense, active ingredient, extraction, pharmacological activity, immunosuppression, lymphocyte proliferation, cytotoxicity

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