当前位置:首页>深圳>深圳先进院改造间充质干细胞,精准攻克银屑病、类风湿等自身免疫病

深圳先进院改造间充质干细胞,精准攻克银屑病、类风湿等自身免疫病

  • 2026-02-15 21:09:43
深圳先进院改造间充质干细胞,精准攻克银屑病、类风湿等自身免疫病

该系统一方面基于生物正交点击化学,将抗体锚定至MSC细胞膜表面,从而实现对病灶中富集特定抗原细胞的识别与连接;另一方面通过细胞内装载药物,使MSC成为可主动迁移的“活体载药体”,从而实现局部、定向的药物递送。

皮肤反复红肿脱皮、关节肿痛变形,常年被炎症缠绕却难寻根治方案 ,银屑病、类风湿性关节炎等自身免疫病,正困扰着全球无数患者。这类疾病由免疫失衡引发,慢性炎症会持续损伤皮肤、关节等组织,病程迁延且个体差异大,一直是临床治疗的棘手难题。

中国科研团队带来了突破性解决方案!1 月 22 日,中国科学院深圳先进技术研究院王言副研究员团队联合东南大学陈磊教授团队,在国际顶级期刊《自然 — 通讯》(Nature Communications)在线发表重磅研究,提出 "抗体偶联间充质干细胞递药系统(AcM-DDS)",为自身免疫病治疗开辟了全新路径。

干细胞疗法的 "痛点":找不到病灶,疗效打折扣

间充质干细胞(MSC)是近年来免疫治疗领域的 "潜力股",兼具免疫调节和组织修复能力,已在多种自身免疫病的临床试验中崭露头角。但一个关键问题始终制约着它的疗效:干细胞经静脉输注后,很难精准 "找到" 病灶并停留,大部分会 "迷路",导致药物无法有效抵达靶组织,疗效稳定性大打折扣,也阻碍了其临床转化。

如何让干细胞变成 "精准导航的药物载体"?这正是科研团队要解决的核心难题。

巧思设计:给干细胞装 "导航",变身 "活体载药导弹"

科研团队的解决方案,堪称一场 "生物工程巧思":

给干细胞装 "导航系统":利用生物正交点击化学技术,将特定抗体精准锚定在骨髓间充质干细胞(BMSC)的细胞膜表面。这些抗体就像 "导航雷达",能精准识别病灶中大量聚集的异常激活细胞(如 CD4⁺T 细胞),让干细胞主动 "奔赴" 炎症现场。

让干细胞带 "弹药":在干细胞内部装载含药物(Cedirogant)的脂质体,使其成为可主动迁移的 "活体载药体"。当干细胞通过抗体识别并连接到病灶细胞后,就能定向释放药物,实现 "哪里有炎症,药物就送到哪里"。

这个设计的巧妙之处在于,瞄准了自身免疫病的关键致病机制:病灶中异常激活的 CD4⁺T 细胞会分化成 Th17 细胞,分泌 IL-17A 等促炎因子,而 Th17 的功能受转录因子 RORγt 调控。此前这类药物因安全性问题受限,如今通过 "精准递送",既能发挥药效,又能减少对正常组织的影响。

小鼠实验大获成功:炎症显著消退,关节损伤大幅改善

为验证这套系统的疗效,科研团队在两种经典的自身免疫病小鼠模型中进行了测试,结果令人振奋:

银屑病模型:在咪喹莫特诱导的急性银屑病样炎症小鼠中,AcM-DDS 展现出超强的局部抗炎效果。治疗后,小鼠皮损组织中的 IL-17A、RORγt 等核心促炎因子,以及 IL-21、IL-22 等多种炎症相关因子的表达均显著下降,皮肤炎症快速消退。

关节炎模型:在胶原诱导的慢性关节炎小鼠中,AcM-DDS 的表现更全面。实验结束时,仅 1/6 的小鼠出现轻度炎症,不仅关节滑膜的炎症得到控制,还有效减少了软骨与骨破坏,同时显著降低了脾脏中 Th17 细胞的水平,从根源上抑制了炎症进展。

核心优势:简便易推广,可适配多种疾病

相比传统的基因工程改造干细胞,这套新系统有两大突出优势:

构建更简便:无需复杂的基因编辑,仅通过抗体偶联即可实现靶向功能,技术门槛更低,更易产业化推广。

灵活 "换靶点":理论上只要更换细胞膜表面的抗体,就能精准识别不同疾病的病灶细胞,轻松拓展到特应性皮炎、移植物抗宿主病等多种免疫相关疾病。

更值得期待的是,MSC 疗法已迎来监管里程碑:2024 年 12 月,美国 FDA 批准首个 MSC 疗法用于儿童激素难治性急性移植物抗宿主病;2025 年 1 月,中国国家药监局也附条件批准同类药物用于相同适应症。这不仅凸显了 MSC 在免疫调节中的临床价值,也为 AcM-DDS 的后续临床转化铺平了道路。

目前,论文中的抗体偶联干细胞技术已获得国家发明专利授权,依托该技术开发的精准治疗平台,还荣获了 2025 年江苏省 "创青春" 生物医药产业链大赛三等奖。

团队与支持

本研究由深圳先进院谢倩助理研究员、沈燕妮研究助理担任共同第一作者,深圳先进院王言副研究员、谢倩助理研究员及东南大学陈磊教授担任通讯作者,深圳先进院为第一通讯单位。研究得到了国家重点研发计划、国家自然科学基金、江苏省自然科学基金、深圳市重大科技专项等多项课题的资助。

随着这项技术的进一步完善和临床转化,未来有望为银屑病、类风湿性关节炎等自身免疫病患者带来 "精准靶向、安全有效" 的全新治疗选择,让更多患者摆脱慢性炎症的长期折磨。让我们共同期待中国科研成果早日落地,惠及全球患者!

相关论文信息:https://www.nature.com/articles/s41467-025-67698-1

免责声明:本文信息来源于网络,本文仅作知识交流与分享及科普目的,不涉及商业宣传,不作为相关医疗指导或用药建议。文章源自网络如有侵权请联系删除。文章来源:干细胞与外泌体

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  1. CONNECT:[ UseTime:0.000500s ] mysql:host=127.0.0.1;port=3306;dbname=c460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000701s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000325s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000284s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000494s ]
  6. SELECT * FROM `set` [ RunTime:0.000223s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000616s ]
  8. SELECT * FROM `article` WHERE `id` = 473353 LIMIT 1 [ RunTime:0.000532s ]
  9. UPDATE `article` SET `lasttime` = 1772130336 WHERE `id` = 473353 [ RunTime:0.002295s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000258s ]
  11. SELECT * FROM `article` WHERE `id` < 473353 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000430s ]
  12. SELECT * FROM `article` WHERE `id` > 473353 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000383s ]
  13. SELECT * FROM `article` WHERE `id` < 473353 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001321s ]
  14. SELECT * FROM `article` WHERE `id` < 473353 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000696s ]
  15. SELECT * FROM `article` WHERE `id` < 473353 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.002907s ]
0.082514s