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10.9/Q1,深圳儿童医院单细胞+空间转录组双剑合璧:OGFRL1调控网络揭示CRMO骨破坏核心机制

  • 2026-02-05 18:23:16
10.9/Q1,深圳儿童医院单细胞+空间转录组双剑合璧:OGFRL1调控网络揭示CRMO骨破坏核心机制
如果您对骨科疾病生信临床研究感兴趣,请为小骨点点关注,持续解读骨科前沿生信文献和思路。如果您需要定制化服务,欢迎扫码联系小骨~

小骨今天分享的这篇研究能发高分,是因为它从一个罕见病例入手,巧妙运用生信分析结合实验验证,不仅找到了导致慢性骨髓炎(CRMO)的新基因OGFRL1,还揭示了其致病机制,并为临床治疗提供了直接依据。
1. 多组学立体分析:全外显子测序锁定突变后,进一步通过单细胞转录组测序深入免疫细胞内部,发现NF-κB和MAPK信号在特定细胞亚群(如低密度粒细胞)中异常活跃。
2. 临床数据深度挖掘:不仅验证整体炎症水平,更精确定位到破骨细胞分化相关基因的上调,将基因突变与骨破坏表型直接关联。
3. 形成完整证据链:生信发现的信号通路异常,后续通过小鼠模型和细胞实验完美验证,构建了“基因突变-信号激活-细胞表型-疾病症状”的完整逻辑闭环。

发文优势与前景:
✅ 临床转化价值高:研究直接指导了TNF抑制剂的成功应用,实现了从机制研究到临床治疗的跨越。
✅ 方法论可借鉴:展示了如何用有限的临床样本,通过多层次生信分析构建完整故事线。
✅ 开辟新研究方向:首次将OGFRL1缺陷与CRMO关联,为自身炎症性骨病提供了新的遗传诊断靶点和治疗思路。
这种“临床问题驱动,数据与实验相互印证”的研究范式,正是当前转化医学研究的典范,既解决了具体临床问题,又揭示了新的生物学机制。
如果你也在为课题设计、数据挖掘或发文思路发愁,这类研究路径值得狠狠参考!如果您也想学习机器学习等生信课程内容,为您的科研之路添砖加瓦,可以联系我们团队,老师手把手教您,解答您的疑惑,现在扫码报名,优惠多多哦!!

下面和小骨一起来看具体文章内容吧!

文章标题:OGFRL1 deficiency causes CRMO via pathological osteoclastogenesis, with therapeutic response to TNF inhibitor

中文标题:OGFRL1缺乏通过病理性破骨细胞生成导致CRMO,对TNF抑制剂有治疗反应

发表期刊Arthritis Rheumatol

发表时间2026年1

影响因子10.9/Q1

研究背景

验证在CRMO患者中发现的OGFRL1功能丧失变异体(c.30del,p. F10Ffs*110)的发病机制,并研究其潜在机制。

研究方法

研究进行全外显子组测序和Sanger测序以鉴定和确认变体。进行qPCR、ELISA、CBA、批量RNA测序和单细胞RNA测序来检测患者与健康对照的炎症标记。在Ogfrl1基因敲除(KO)和野生型(WT)小鼠中建立胶原抗体诱导的关节炎模型,并进行显微CT扫描以研究Ogfrl1缺陷的致病性。此外,还利用体外破骨细胞的诱导和分化来探索Ogfrl1缺陷的潜在机制。

文章结果

OGFRL1突变患者

临床表现:7岁女性患儿,1岁起病,表现为进行性加重的双下肢及腰背疼痛、关节炎、多部位骨痛、间歇性发热及活动能力丧失。影像学(PET-CT, MRI)显示多骨病变及代谢增高,骨骼活检提示慢性炎症性骨改变,微生物检查阴性,最终诊断为慢性复发性多灶性骨髓炎。
遗传学发现:全外显子测序发现患者携带OGFRL1基因的纯合移码突变(c.30del, p. F10Ffs*110),父母为杂合携带者。该突变为新发、罕见、预测导致蛋白功能丧失。

患者表现出炎症水平升高

细胞因子水平:与健康对照相比,患者PBMCs中CXCL8 mRNA水平升高。
血清炎症标志物:患者血清中TNF、IL-6和IL-8的蛋白水平显著升高。

患者体内MAPK和NF-κB信号通路激活

单细胞RNA测序分析:患者PBMCs中的髓系细胞和淋巴细胞均显示NF-κB信号通路评分上调。

关键基因表达:多个NF-κB和MAPK通路相关基因(如NFKB1, JUN, FOS等)在多种细胞群体中表达升高。
特定细胞群体:患者体内低密度粒细胞数量扩增,且LDGs和单核细胞中炎症介质IL1B和CXCL8表达显著增高。
通路富集:GSEA分析证实NF-κB和MAPK通路在患者髓系细胞(尤其是LDGs和单核细胞)中显著富集。

OGFRL1缺陷驱动小鼠和患者的骨炎症

小鼠表型:在胶原抗体诱导关节炎模型中,Ogfrl1敲除小鼠表现出更严重的关节肿胀、血清IL-6升高、更明显的骨侵蚀以及更严重的关节炎症细胞浸润和破骨细胞生成。

体外机制:Ogfrl1敲除的骨髓源性巨噬细胞在体外更容易分化为破骨细胞,并高表达破骨细胞分化关键基因(Ctsk, Nfatc1, Dcstamp)。
患者细胞验证:患者的PBMCs在体外也表现出比健康对照更强的破骨细胞分化能力。

患者对TNF抑制剂治疗有反应

治疗与效果:使用TNF抑制剂(阿达木单抗)治疗后,患者骨病变影像学表现显著改善。

炎症指标:CRP、ESR、SAA、IL-6等炎症生物标志物下降并长期维持在正常范围。

研究意义

研究确定OGFRL1缺乏是CRMO的一个新原因,强调了以前未被认识到的OGFRL1在抑制炎症反应中的作用,并为这种自身炎症性疾病的发病机制和治疗提供了新的见解。

(如果各位老师有生信方面的问题想要咨询,欢迎扫码联系小骨,小骨为您提供如下服务:免费思路评估、付费方案设计和生信分析等)。

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3.9/Q1,绕过耗时实验:四川省骨科医院用NHANES数据库与CatBoost快速发表骨关节炎风险预测研究

16.3/Q1,苏州大学一附院单细胞+机器学习双杀!双功能纳米平台调控免疫微环境发顶刊的干湿结合套路

4.2/Q1,心代谢指数每涨1分,骨关节炎风险增7%?西安交大二附院靠NHANES大数据让CMI→CRP→OA链路首次实锤

45.8/Q1,从粪便到软骨:肠道 FXR 信号=骨关节炎解药?SCI怎么发,中南大学湘雅医院这篇文给你答案

15.7/Q1,川大多组学发NC:同一关节100k细胞纵向追踪,揭秘TNF/JAK抑制剂如何“精准拆弹”RA

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  1. CONNECT:[ UseTime:0.000656s ] mysql:host=127.0.0.1;port=3306;dbname=c460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000822s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.005742s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.007438s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000531s ]
  6. SELECT * FROM `set` [ RunTime:0.007546s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000667s ]
  8. SELECT * FROM `article` WHERE `id` = 484676 LIMIT 1 [ RunTime:0.031322s ]
  9. UPDATE `article` SET `lasttime` = 1770292974 WHERE `id` = 484676 [ RunTime:0.009811s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.003333s ]
  11. SELECT * FROM `article` WHERE `id` < 484676 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001674s ]
  12. SELECT * FROM `article` WHERE `id` > 484676 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.008192s ]
  13. SELECT * FROM `article` WHERE `id` < 484676 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.012799s ]
  14. SELECT * FROM `article` WHERE `id` < 484676 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.021631s ]
  15. SELECT * FROM `article` WHERE `id` < 484676 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.036193s ]
0.221905s