当前位置:首页>郑州>Cell子刊丨郑州大学刘军杰/史进进/张振中发现单纯疱疹病毒性脑炎的潜在治疗新策略

Cell子刊丨郑州大学刘军杰/史进进/张振中发现单纯疱疹病毒性脑炎的潜在治疗新策略

  • 2026-03-31 07:27:41
Cell子刊丨郑州大学刘军杰/史进进/张振中发现单纯疱疹病毒性脑炎的潜在治疗新策略

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单纯疱疹病毒性脑炎(HSE)是由1型单纯疱疹病毒(HSV‑1)引起的危及生命的中枢神经系统疾病。尽管阿昔洛韦(ACV)及其衍生物是标准治疗药物,但因其副作用与病毒耐药性,在临床应用中仍存在局限。

2026年3月12日,郑州大学刘军杰、史进进、张振中共同通讯在Cell Reports 在线发表题为“Enucleated cells with Nectin-1 overexpression capture HSV-1 and promote viral elimination for herpes simplex encephalitis therapy”的研究论文。受病毒通过识别宿主细胞表面的nectin‑1入侵细胞的机制启发,本研究构建了高表达nectin‑1的去核间充质干细胞(eMSCs),作为“诱饵细胞”捕获HSV‑1。

结果表明,eMSCs可在神经元存在的情况下竞争性捕获病毒,且因预先去除细胞核,能够抑制病毒复制与扩散。有趣的是,由于缺乏细胞核,捕获病毒后的eMSCs约在60小时后通过内源性凋亡触发巨噬细胞胞葬作用(efferocytosis),从而加速病毒清除。这是包括阿昔洛韦在内的现有抗病毒药物所不具备的特性。综上,该策略显著改善了单纯疱疹病毒性脑炎模型小鼠的生存质量。

人类病原体1 型单纯疱疹病毒(HSV‑1)属于疱疹病毒科双链DNA 病毒,其感染在人群中极为普遍。人类是HSV唯一的自然宿主,这些疾病可能引发从轻微到致命的各种疾病。尤其是HSE,是最常见的散发性病毒性脑炎形式,如果不治疗,会导致永久性脑损伤、记忆丧失,甚至死亡。此外,由HSV-1感染引起的角膜炎可能导致角膜逐渐混浊和视力丧失。

尽管 HSV 感染高发,但目前尚无获批的疫苗用于预防。临床使用的抗病毒药物均为DNA 聚合酶(Pol)抑制剂,多数为核苷类似物如阿昔洛韦(ACV)和伐昔洛韦(VACV)。ACV是前体药物,需经病毒与细胞激酶磷酸化激活,从而抑制病毒DNA 合成;而VACV 是其口服前药,在体内水解为ACV 后通过同一通路发挥作用。临床中HSV 对抗病毒药物耐药的现象十分常见,ACV与VACV耐药通常由前药活化关键酶或DNA 聚合酶突变介导。此外,大量临床研究证实,长期使用ACV 可引发肾毒性,且核苷类似物存在染色体诱变风险。因此,研发新型抗HSV‑1 感染策略迫在眉睫。

图形摘要(摘自Cell Reports)

Nectin-1,是一种免疫球蛋白超家族的跨膜糖蛋白,是HSV-1的关键进入受体,能结合病毒糖蛋白D并介导膜融合。虽然HSV-1也可以利用疱疹病毒进入介质(HVEM)和3-O-硫酸肝素硫酸盐(3-OSHS)等受体,但既往研究表明,当这些受体单独过表达时,病毒入侵与nectin‑1表达水平的相关性最强。病毒与受体结合后,含基因组的病毒衣壳沿微管转运至细胞核内,HSV‑1DNA基因组在此完成复制与扩散。基于这一机制,研究提出假说:高表达nectin‑1的细胞可作为“诱饵”捕获病毒,并通过预先去除细胞核来阻止病毒复制与扩散。本研究结果显示,高表达nectin‑1的去核间充质干细胞(eMSCs)可在神经元存在的条件下有效捕获病毒,并因预先去核而抑制病毒复制与传播。有趣的是,由于缺乏细胞核,捕获病毒后的eMSCs约在60小时后发生内源性凋亡,这一凋亡过程可特异性触发巨噬细胞的胞葬作用,从而加速体内HSV‑1的清除。在HSE原发性急性感染模型中,eMSCs表现出显著的病毒清除效果,并通过减轻脑部炎症保护宿主神经元;即使在生理性潜伏再激活模型中也同样有效。综上,该策略为难治性HSE提供了全新治疗思路,有效克服了现有HSV‑1治疗手段的局限。

原文链接:10.1016/j.celrep.2026.117099

来源iNature

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凡署名原创的文章版权属《感染医线》所有,欢迎分享、转载(开白可后台留言)。本文仅供医疗卫生专业人士了解最新医药资讯参考使用,不代表本平台观点。该等信息不能以任何方式取代专业的医疗指导,也不应被视为诊疗建议,如果该信息被用于资讯以外的目的,本站及作者不承担相关责任。

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  1. CONNECT:[ UseTime:0.001048s ] mysql:host=127.0.0.1;port=3306;dbname=i460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.002114s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000833s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.003401s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000524s ]
  6. SELECT * FROM `set` [ RunTime:0.000230s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000567s ]
  8. SELECT * FROM `article` WHERE `id` = 497446 LIMIT 1 [ RunTime:0.000385s ]
  9. UPDATE `article` SET `lasttime` = 1775830407 WHERE `id` = 497446 [ RunTime:0.003346s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.002990s ]
  11. SELECT * FROM `article` WHERE `id` < 497446 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001046s ]
  12. SELECT * FROM `article` WHERE `id` > 497446 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000414s ]
  13. SELECT * FROM `article` WHERE `id` < 497446 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000859s ]
  14. SELECT * FROM `article` WHERE `id` < 497446 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001009s ]
  15. SELECT * FROM `article` WHERE `id` < 497446 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.008060s ]
0.101131s