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Long noncoding RNA Malat1 protects against osteoporosis and bone metastasis

Author

Listed:
  • Yang Zhao

    (The University of Texas MD Anderson Cancer Center)

  • Jingyuan Ning

    (Chinese Academy of Medical Sciences)

  • Hongqi Teng

    (The University of Texas MD Anderson Cancer Center)

  • Yalan Deng

    (The University of Texas MD Anderson Cancer Center)

  • Marisela Sheldon

    (The University of Texas MD Anderson Cancer Center)

  • Lei Shi

    (The University of Texas MD Anderson Cancer Center)

  • Consuelo Martinez

    (The University of Texas MD Anderson Cancer Center)

  • Jie Zhang

    (The University of Texas MD Anderson Cancer Center)

  • Annie Tian

    (Rice University)

  • Yutong Sun

    (The University of Texas MD Anderson Cancer Center)

  • Shinichi Nakagawa

    (Hokkaido University)

  • Fan Yao

    (The University of Texas MD Anderson Cancer Center
    Huazhong Agricultural University)

  • Hai Wang

    (Roswell Park Comprehensive Cancer Center)

  • Li Ma

    (The University of Texas MD Anderson Cancer Center
    The University of Texas MD Anderson Cancer Center UTHealth Houston Graduate School of Biomedical Sciences)

Abstract

MALAT1, one of the few highly conserved nuclear long noncoding RNAs (lncRNAs), is abundantly expressed in normal tissues. Previously, targeted inactivation and genetic rescue experiments identified MALAT1 as a suppressor of breast cancer lung metastasis. On the other hand, Malat1-knockout mice are viable and develop normally. On a quest to discover the fundamental roles of MALAT1 in physiological and pathological processes, we find that this lncRNA is downregulated during osteoclastogenesis in humans and mice. Remarkably, Malat1 deficiency in mice promotes osteoporosis and bone metastasis of melanoma and mammary tumor cells, which can be rescued by genetic add-back of Malat1. Mechanistically, Malat1 binds to Tead3 protein, a macrophage-osteoclast–specific Tead family member, blocking Tead3 from binding and activating Nfatc1, a master regulator of osteoclastogenesis, which results in the inhibition of Nfatc1-mediated gene transcription and osteoclast differentiation. Notably, single-cell transcriptome analysis of clinical bone samples reveals that reduced MALAT1 expression in pre-osteoclasts and osteoclasts is associated with osteoporosis and metastatic bone lesions. Altogether, these findings identify Malat1 as a lncRNA that protects against osteoporosis and bone metastasis.

Suggested Citation

  • Yang Zhao & Jingyuan Ning & Hongqi Teng & Yalan Deng & Marisela Sheldon & Lei Shi & Consuelo Martinez & Jie Zhang & Annie Tian & Yutong Sun & Shinichi Nakagawa & Fan Yao & Hai Wang & Li Ma, 2024. "Long noncoding RNA Malat1 protects against osteoporosis and bone metastasis," Nature Communications, Nature, vol. 15(1), pages 1-20, December.
  • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-46602-3
    DOI: 10.1038/s41467-024-46602-3
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    References listed on IDEAS

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    1. Yunshu Wu & Liang Xie & Mengyuan Wang & Qiuchan Xiong & Yuchen Guo & Yu Liang & Jing Li & Rui Sheng & Peng Deng & Yuan Wang & Rixin Zheng & Yizhou Jiang & Ling Ye & Qianming Chen & Xuedong Zhou & Shui, 2018. "Mettl3-mediated m6A RNA methylation regulates the fate of bone marrow mesenchymal stem cells and osteoporosis," Nature Communications, Nature, vol. 9(1), pages 1-12, December.
    2. Christian E. Jacome-Galarza & Gulce I. Percin & James T. Muller & Elvira Mass & Tomi Lazarov & Jiri Eitler & Martina Rauner & Vijay K. Yadav & Lucile Crozet & Mathieu Bohm & Pierre-Louis Loyher & Gera, 2019. "Developmental origin, functional maintenance and genetic rescue of osteoclasts," Nature, Nature, vol. 568(7753), pages 541-545, April.
    3. Basel M. Al-Barghouthi & Larry D. Mesner & Gina M. Calabrese & Daniel Brooks & Steven M. Tommasini & Mary L. Bouxsein & Mark C. Horowitz & Clifford J. Rosen & Kevin Nguyen & Samuel Haddox & Emily A. F, 2021. "Systems genetics in diversity outbred mice inform BMD GWAS and identify determinants of bone strength," Nature Communications, Nature, vol. 12(1), pages 1-19, December.
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