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您的检索式：作者名="Xingcheng Gao"
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| 1 | The mechanosensitive lncRNA Neat1 promotes osteoblast function through paraspeckle-dependent Smurf1 mRNA retention显示文摘Mechanical stimulation plays an important role in bone remodeling. Exercise-induced mechanical loading enhances bone strength,whereas mechanical unloading leads to bone loss. Increasing evidence has demonstrated that long noncoding RNAs(lnc RNAs) play key roles in diverse biological, physiological and pathological contexts. However, the roles of lnc RNAs in mechanotransduction and their relationships with bone formation remain unknown. In this study, we screened mechanosensing lnc RNAs in osteoblasts and identified Neat1, the most clearly decreased lnc RNA under simulated microgravity. Of note, not only Neat1 expression but also the specific paraspeckle structure formed by Neat1 was sensitive to different mechanical stimulations, which were closely associated with osteoblast function. Paraspeckles exhibited small punctate aggregates under simulated microgravity and elongated prolate or larger irregular structures under mechanical loading. Neat1 knockout mice displayed disrupted bone formation, impaired bone structure and strength, and reduced bone mass. Neat1 deficiency in osteoblasts reduced the response of osteoblasts to mechanical stimulation. In vivo, Neat1 knockout in mice weakened the bone phenotypes in response to mechanical loading and hindlimb unloading stimulation. Mechanistically, paraspeckles promoted nuclear retention of E3 ubiquitin ligase Smurf1 m RNA and downregulation of their translation, thus inhibiting ubiquitination-mediated degradation of the osteoblast master transcription factor Runx2, a Smurf1 target. Our study revealed that Neat1 plays an essential role in osteoblast function under mechanical stimulation, which provides a paradigm for the function of the lnc RNA-assembled structure in response to mechanical stimulation and offers a therapeutic strategy for long-term spaceflight-or bedrest-induced bone loss and age-related osteoporosis. | Caizhi Liu Xingcheng Gao Yuheng Li Weijia Sun Youjia Xu Yingjun Tan Ruikai Du Guohui Zhong Dingsheng Zhao Zizhong Liu Xiaoyan Jin Yinlong Zhao Yinbo Wang Xinxin Yuan Junjie Pan Guodong Yuan Youyou Li Wenjuan Xing Guanghan Kan Yanqing Wang Qi Li Xuan Han Jianwei Li Shukuan Ling Yingxian Li | 2022 | Bone Research2022，10，2： | 3 |
| 2 | Infection complications in febrile chimeric antigen receptor(CAR)-T recipients during the peri-CAR-T cell treatment period examined using metagenomic next-generation sequencing(mNGS)显示文摘Dear Editor,Chimeric antigen receptor-engineered(CAR)-T cell therapy has achieved unprecedented efficacy on refractory/relapsed B-cell malignancies[1].Yet,CAR-T recipients are highly susceptible to infection due to the immunodeficiency caused by B-cell aplasia and the pretreatment with chemotherapy.However,due to the systematic use of empirical broad-spectrum antibiotics and immunosuppressors to control cytokine release syndrome(CRS)reaction,microbiological diagnosis of infection has remained challenging in CAR-T recipients. | Jiali Nie Li Yang Liang Huang Lili Gao Ken He Young Jehane Michael Le Grange Xingcheng Yang Jia Wei Min Xiao Jianfeng Zhou | 2022 | Cancer Communications2022，42，5： | 2 |
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