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Preclinical development of a microRNA-based therapy for intervertebral disc degeneration.

ABSTRACT: Understanding the molecular mechanisms regulating the maintenance and destruction of intervertebral disc may lead to the development of new therapies for intervertebral disc degeneration (IDD). Here we present evidence from miRNA microarray analyses of clinical data sets along with in vitro and in vivo experiments that miR-141 is a key regulator of IDD. Gain- and loss-of-function studies show that miR-141 drives IDD by inducing nucleus pulposus (NP) apoptosis. Furthermore, miR-141 KO in mice attenuated spontaneous and surgically induced IDD. Mechanistically, miR-141 promotes IDD development by targeting and depleting SIRT1, a negative regulator of NF-?B pathway. Therapeutically, upregulation or downregulation of miR-141 by nanoparticle delivery in IDD model aggravated or alleviated experimental IDD, respectively. Our findings reveal a novel mechanism by which miR-141, in part, promotes IDD progression by interacting with SIRT1/NF-?B pathway. Blockade of miR-141 in vivo may serve as a potential therapeutic approach in the treatment of IDD.

SUBMITTER: Ji ML

PROVIDER: S-EPMC6262020 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature

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Preclinical development of a microRNA-based therapy for intervertebral disc degeneration.

Ji Ming-Liang ML Jiang Hua H Zhang Xue-Jun XJ Shi Pei-Liang PL Li Chao C Wu Hao H Wu Xiao-Tao XT Wang Yun-Tao YT Wang Chen C Lu Jun J

Nature communications 20181128 1

Understanding the molecular mechanisms regulating the maintenance and destruction of intervertebral disc may lead to the development of new therapies for intervertebral disc degeneration (IDD). Here we present evidence from miRNA microarray analyses of clinical data sets along with in vitro and in vivo experiments that miR-141 is a key regulator of IDD. Gain- and loss-of-function studies show that miR-141 drives IDD by inducing nucleus pulposus (NP) apoptosis. Furthermore, miR-141 KO in mice att ...[more]

PMID: 30487517

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Project description:As a controllable biological process, regulated cell death (RCD) extensively participates in cellular homeostasis, organismal development, and the pathogenesis of diseases. This review addresses the research gaps by synthesising the findings on the complexity of RCD modes and their role in disc degeneration, and summarises the preclinical strategies to alleviate disc degeneration and promote disc repair by regulating RCD.BackgroundIntervertebral disc degeneration (IDD) is the major source of chronic low back pain. As a controllable biological process, regulated cell death (RCD) extensively participates in the pathogenesis of IDD. Nevertheless, the initiation and progression of RCD remain unclear, and more importantly, the interaction between different RCD modes during IDD and therapy is far from well understood.MethodsLiterature search was performed using "regulated cell death AND intervertebral disc degeneration" in PubMed, Embase, and Web of Science. Meanwhile, relevant findings have been reviewed and quoted.ResultsIn this review, we discuss the inducing factors of IDD, various modes of RCD in intervertebral disc, the interactions between different RCD modes, as well as the obstacles to achieve disc regeneration. Meanwhile, the research gaps and perspective in studies that targeting RCD are also presented.ConclusionIncreasing evidence demonstrated the presence of different RCD modes in intervertebral disc during the progression of IDD. RCD in the resident disc cells is probably induced by the multiple factors such as abnormal mechanical loading, nutritional imbalance, inflammation microenvironment, circadian rhythm changes, withdraw of hormones, and other biomechanical factors. A better understanding of the fundamental mechanisms and the interactions between different RCD modes might contribute to the rescuing of disc degeneration and development of promising therapeutics.Translational potential statementThe Translational potential of this article. This review aims to demonstrate a better understanding of the fundamental mechanisms governing RCD, which might contribute to the rescuing of disc degeneration and to the development of promising therapeutics in a clinical setting.

Dataset Information

Preclinical development of a microRNA-based therapy for intervertebral disc degeneration.

Publications

Preclinical development of a microRNA-based therapy for intervertebral disc degeneration.

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