Department of Neurology, The First Affiliated Hospital of China Medical University, Shenyang, China.
Front Immunol. 2024 Mar 27;15:1342213. doi: 10.3389/fimmu.2024.1342213. eCollection 2024.
Myasthenia gravis (MG) stands as a perplexing autoimmune disorder affecting the neuromuscular junction, driven by a multitude of antibodies targeting postsynaptic elements. However, the mystery of MG pathogenesis has yet to be completely uncovered, and its heterogeneity also challenges diagnosis and treatment. Growing evidence shows the differential expression of non-coding RNAs (ncRNAs) in MG has played an essential role in the development of MG in recent years. Remarkably, these aberrantly expressed ncRNAs exhibit distinct profiles within diverse clinical subgroups and among patients harboring various antibody types. Furthermore, they have been implicated in orchestrating the production of inflammatory cytokines, perturbing the equilibrium of T helper 1 cells (Th1), T helper 17 cells (Th17), and regulatory T cells (Tregs), and inciting B cells to generate antibodies. Studies have elucidated that certain ncRNAs mirror the clinical severity of MG, while others may hold therapeutic significance, showcasing a propensity to return to normal levels following appropriate treatments or potentially foretelling the responsiveness to immunosuppressive therapies. Notably, the intricate interplay among these ncRNAs does not follow a linear trajectory but rather assembles into a complex network, with competing endogenous RNA (ceRNA) emerging as a prominent hub in some cases. This comprehensive review consolidates the landscape of dysregulated ncRNAs in MG, briefly delineating their pivotal role in MG pathogenesis. Furthermore, it explores their promise as prospective biomarkers, aiding in the elucidation of disease subtypes, assessment of disease severity, monitoring therapeutic responses, and as novel therapeutic targets.
重症肌无力(MG)是一种令人费解的自身免疫性疾病,影响神经肌肉接头,由多种针对突触后成分的抗体驱动。然而,MG 发病机制的奥秘尚未完全揭示,其异质性也给诊断和治疗带来了挑战。越来越多的证据表明,近年来,非编码 RNA(ncRNA)的差异表达在 MG 的发展中起着重要作用。值得注意的是,这些异常表达的 ncRNA 在不同的临床亚组和不同抗体类型的患者中表现出不同的特征。此外,它们参与调节炎症细胞因子的产生,扰乱辅助性 T 细胞 1(Th1)、辅助性 T 细胞 17(Th17)和调节性 T 细胞(Tregs)的平衡,并促使 B 细胞产生抗体。研究表明,某些 ncRNA 反映了 MG 的临床严重程度,而另一些则可能具有治疗意义,表现为在适当治疗后恢复正常水平,或者可能预示对免疫抑制治疗的反应性。值得注意的是,这些 ncRNA 之间的复杂相互作用不是线性的,而是形成一个复杂的网络,在某些情况下,竞争内源性 RNA(ceRNA)成为一个突出的枢纽。这篇综述综合了 MG 中失调 ncRNA 的研究现状,简要描述了它们在 MG 发病机制中的关键作用。此外,还探讨了它们作为有前途的生物标志物的潜力,有助于阐明疾病亚型、评估疾病严重程度、监测治疗反应,并作为新的治疗靶点。