Rheumatology articles within Nature Communications

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  • Article
    | Open Access

    The transcriptional regulators E2F/Dp play a critical role in cell-cycle regulation, but it is unclear why E2F-deficient flies die. Here, the authors show this is linked to the function of E2F in adult Drosophilaskeletal muscle, with the contribution of E2f1 being most important in post-fusion muscle.

    • Maria Paula Zappia
    •  & Maxim V. Frolov
  • Article
    | Open Access

    PGC-1 family transcription factors are important regulators of cellular energy metabolism. Here the authors use tissue-specific, inducible PGC-1β KO mice to show that PGC-1 family members are not functionally redundant and that PGC-1β is required to maintain mitochondrial function in skeletal muscle.

    • Thanuja Gali Ramamoorthy
    • , Gilles Laverny
    •  & Daniel Metzger
  • Article |

    Long intervening noncoding RNAs (lincRNAs) are an emerging class of molecular regulators with diverse functions. Here the authors identify Linc-YY1, a novel lincRNA transcribed from the noncoding region of the mouse YY1 gene, that binds to YY1 protein and thereby regulates skeletal muscle differentiation and regeneration.

    • Liang Zhou
    • , Kun Sun
    •  & Huating Wang
  • Article
    | Open Access

    TAK1 is a MEK kinase family member that activates pro-survival NF-kB signalling but also pro-apoptotic caspase signalling in various cell types. Here the authors show that satellite-cell specific deletion of TAK1 in mice depletes the muscle stem cell pool and thus limits myofibre regeneration after injury.

    • Yuji Ogura
    • , Sajedah M. Hindi
    •  & Ashok Kumar
  • Article
    | Open Access

    Nerve damage can lead to skeletal muscle paralysis and atrophy. Here, the authors show that localized photostimulation of mouse calf muscle expressing the light-sensitive channel Channelrhodopsin-2 generates contraction in the absence of neural impulses and prove that this strategy can be used to prevent muscle atrophy.

    • Philippe Magown
    • , Basavaraj Shettar
    •  & Victor F. Rafuse
  • Article
    | Open Access

    The transcriptional regulator Tbx15 has a role in organ development. Here Lee et al.show that Tbx15 influences fibre-type determination in murine skeletal muscles, explaining local and systemic metabolic derangements in heterozygous Tbx15 knockout mice.

    • Kevin Y. Lee
    • , Manvendra K. Singh
    •  & C. Ronald Kahn
  • Article
    | Open Access

    Newts can regenerate amputated limbs via unknown mechanism involving dedifferentiation of cells in the stump into progenitors that contribute to the new appendages. Here the authors show that skeletal muscle dedifferentiation in regenerating newt limbs relies on a diverted programmed cell death response by myofibers.

    • Heng Wang
    • , Sara Lööf
    •  & András Simon
  • Article |

    Skeletal muscle satellite cells are muscle stem cells believed to contribute only to regenerating myofibres. Here Keefe et al. show that in adult sedentary mice satellite cells continue to fuse with uninjured myofibres, but they are not globally required for the maintenance of aging muscles.

    • Alexandra C. Keefe
    • , Jennifer A. Lawson
    •  & Gabrielle Kardon