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1.上海中医药大学附属光华医院风湿科(上海 200052)
2.复旦大学附属华山医院风湿免疫科(上海 200040)
3.上海交通大学医学院附属同仁医院康复科(上海 200336)
许林帅,男,硕士研究生,主要从事中医药防治风湿病研究工作
何秉恒,住院医师;E-mail:hhebingheng@126.com
收稿:2024-10-29,
纸质出版:2026-02-10
移动端阅览
许林帅,金晔华,朱小霞,等.雷藤舒调控滑膜关节相关长链非编码RNA2在胶原诱导性关节炎小鼠中的作用机制研究[J].上海中医药杂志,2026,60(2):58-67.
XU Linshuai,JIN Yehua,ZHU Xiaoxia,et al.Mechanistic study on regulation of wide‑interacting nude‑associated matrix‑associated region 2 by 5R‑5‑hydroxytriptolide (LLDT‑8) in collagen‑induced arthritis mice[J].Shanghai Journal of Traditional Chinese Medicine,2026,60(2):58-67.
许林帅,金晔华,朱小霞,等.雷藤舒调控滑膜关节相关长链非编码RNA2在胶原诱导性关节炎小鼠中的作用机制研究[J].上海中医药杂志,2026,60(2):58-67. DOI: 10.16305/j.1007-1334.2026.z20241029004.
XU Linshuai,JIN Yehua,ZHU Xiaoxia,et al.Mechanistic study on regulation of wide‑interacting nude‑associated matrix‑associated region 2 by 5R‑5‑hydroxytriptolide (LLDT‑8) in collagen‑induced arthritis mice[J].Shanghai Journal of Traditional Chinese Medicine,2026,60(2):58-67. DOI: 10.16305/j.1007-1334.2026.z20241029004.
目的
2
探讨滑膜关节相关长链非编码RNA2(WAKMAR2)对胶原诱导性关节炎(CIA)小鼠滑膜炎症的影响及雷藤舒(T8)的干预作用机制。
方法
2
将小鼠随机分为正常组(WT组)、CIA模型组(CIA组)、过表达空载体组(CIA-NC组)、过表达慢病毒组(CIA-LV组)、T8给药组(CIA+T8组)、过表达空载体后的T8给药组(CIA-NC+T8组)、过表达慢病毒后的T8给药组(CIA-LV+T8组),每组8只。除正常组外,其余组构建小鼠CIA模型,并在CIA-LV组、CIA-LV+T8组小鼠膝关节腔注射WAKMAR2过表达慢病毒,连续注射3周,每周注射1次;CIA组只进行羟丙基甲基纤维素(HPMC)灌胃;CIA+T8组、CIA-NC+T8组、CIA-LV+T8组均进行T8灌胃,灌胃自第28天开始,为期4周。通过活体成像确定病毒转染效率;通过酶联免疫吸附分析(ELISA)检测各组小鼠血清中肿瘤坏死因子-α(TNF-α)、白细胞介素-1(IL‑1)、白细胞介素-6(IL-6)的含量;使用小动物计算机体层显像仪(Micro-CT)观察小鼠足爪关节的骨破坏程度;通过实时逆转录PCR检测滑膜关节WAKMAR2和微小RNA-4478(miR-4478)的表达;通过Western blot检测E2F转录因子1(E2F1)和p53蛋白的表达。
结果
2
①活体成像结果显示WAKMAR2过表达慢病毒注射后在小鼠膝关节部位高表达;②与CIA组和CIA-NC组相比,CIA-LV组小鼠的一般情况及关节炎症指数明显改善,血清中TNF-α、IL-1、IL-6的表达明显降低,WAKMAR2 mRNA表达升高,miR-4478 mRNA表达降低,E2F1和p53的蛋白表达均明显升高;③与CIA+T8组和CIA-NC+T8组相比,CIA-LV+T8组的关节炎炎症指数明显改善,血清中TNF-α、IL-1、IL-6的表达明显降低,WAKMAR2 mRNA表达升高,miR-4478 mRNA表达降低,E2F1和p53的蛋白表达均明显升高。
结论
2
过表达WAKMAR2可改善CIA小鼠关节滑膜炎症微环境,可作为治疗类风湿关节炎(RA)的潜在靶点。T8可通过调控WAKMAR2/miR-4478/E2F1/p53轴降低CIA小鼠的炎症水平。该结果为RA的治疗策略提供了新的研究方向,并为T8的临床应用奠定了理论基础。
Objective
2
This study investigates the effect of wide-interacting nude-associated matrix-associated region 2 (WAKMAR2) on synovial inflammation and bone destruction in collagen-induced arthritis (CIA) mice, as well as the mechanism of intervention by 5
R
-5-hydroxytriptolide (LLDT-8, T8).
Methods
2
The mice were randomly divided into the normal group (WT group), the CIA model group (CIA group), the overexpression empty vector group (CIA-NC group), the overexpression lentivirus group (CIA-LV group), the T8 administration group (CIA+T8 group), the T8 administration group after overexpression empty vector (CIA-NC+T8 group), and the T8 administration group after overexpression lentivirus (CIA-LV+T8 groups), 8 in each group. Except for the normal group, the CIA models of mice were constructed in the other groups, and WAKMAR2-overexpressing lentivirus was injected into the knee joint cavity of mice in CIA-LV group and CIA-LV+T8 group. The virus was injected continuously for 3 weeks, once a week. The CIA group only received intragastric administration of hydroxypropyl methylcellulose (HPMC). The CIA+T8 group, the CIA-NC+T8 group and the CIA-LV+T8 group all received T8 gavage. The gavage began on the 28th day and lasted for 4 weeks.
In vivo
imaging was used to determine viral transfection efficiency. The expression of tumor necrosis factor-α (TNF-α), interleukin-1 (IL-1), and interleukin-6 (IL-6) in mouse blood was
detected by enzyme-linked immunosorbent assay (ELISA) assay. The degree of joint bone destruction in mouse paws was observed using Micro-CT. Real-time quantitative PCR was used to measure the expression of WAKMAR2
and microRNA-4478 (miR-4478). Western blot was used to detect the expression of E2F1 and p53 proteins.
Results
2
①
In vivo
imaging demonstrated high expression of WAKMAR2 after lentiviral injection in the knee joints of mice. ②Compared to the CIA group and CIA-NC group, the CIA-LV group showed significant improvement in general condition and arthritis inflammation index, with decreased expression of TNF-α, IL-1, and IL-6 in serum, increased mRNA levels of WAKMAR2, decreased mRNA levels of miR-4478, and elevated protein expression of E2F transcription factor 1 (E2F1) and p53. ③Compared to CIA+T8 group and CIA-NC+T8 group, CIA-LV+T8 group showed significant improvement in general condition and arthritis inflammation index, with decreased expression of TNF-α, IL-1, and IL-6 in serum, increased mRNA levels of WAKMAR2, decreased mRNA levels of miR-4478, and elevated protein expression of E2F1 and p53.
Conclusions
2
Overexpression of WAKMAR2 can improve the synovial inflammation microenvironment in CIA mice and may serve as a potential target for the treatment of rheumatoid arthritis (RA). T8 can inhibit inflammation levels in CIA mice by regulating the WAKMAR2/miR-4478/E2F1/p53 axis. These findings provide new directions for RA treatment strategies and establish a theoretical foundation for future clinical applications.
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