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PLoS ONE:大麻样化合物抑制HIV

2012-03-23 MedSci MedSci原创

据期刊PLoS ONE上发表的文章报道,纽约西奈山医学院研究人员发现大麻样化合物可触发人免疫细胞受体,能直接抑制艾滋病(AIDS)晚期阶段的人免疫缺陷病毒(HIV)。 医用大麻常用来止痛、缓解消瘦和厌食及晚期艾滋病的副反应。本研究首次揭示免疫细胞的大麻受体(即大麻素受体CB1和CB2)能影响病毒传播。了解该受体对病毒的作用有助于开发减缓AIDS进程的新药物。 HIV常感染携带病毒受体CD4

据期刊PLoS ONE上发表的文章报道,纽约西奈山医学院研究人员发现大麻样化合物可触发人免疫细胞受体,能直接抑制艾滋病(AIDS)晚期阶段的人免疫缺陷病毒(HIV)。

医用大麻常用来止痛、缓解消瘦和厌食及晚期艾滋病的副反应。本研究首次揭示免疫细胞的大麻受体(即大麻素受体CB1和CB2)能影响病毒传播。了解该受体对病毒的作用有助于开发减缓AIDS进程的新药物。

HIV常感染携带病毒受体CD4的活跃免疫细胞,使它们不能抗击感染。为了传播,病毒要求激活静息的免疫细胞。在晚期艾滋病中,HIV发生突变,能感染静息细胞,并通过信号受体CXCR4进入细胞。用触发CB2的大麻素激动剂处理细胞,发现CB2能阻断该信号过程,抑制静息免疫细胞感染。在感染的早期阶段,HIV不用通过CXCR4即能进入免疫细胞,CB2激动剂只能是疾病晚期的有效抗病毒药物。CB2特异触发药物可作为标准抗病毒药物的辅助用药,可能有助于减轻晚期艾滋病的症状,阻止病毒传播。

接下来的工作就是要建立一个晚期艾滋病小鼠模型,以便在体检测CB2触发药物的效能

原始链接http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0033961

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    2012-03-25 kcb069
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