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Peng L, Zhou L, Li H, Zhang X, Li S, Wang K, Yang M, Ma X, Zhang D, Xiang S, Duan Y, Wang T, Sun C, Wang C, Lu D, Qian M, Wang Z. Hippo-signaling-controlled MHC class I antigen processing and presentation pathway potentiates antitumor immunity. Cell Rep 2024; 43:114003. [PMID: 38527062 DOI: 10.1016/j.celrep.2024.114003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 02/05/2024] [Accepted: 03/11/2024] [Indexed: 03/27/2024] Open
Abstract
The major histocompatibility complex class I (MHC class I)-mediated tumor antigen processing and presentation (APP) pathway is essential for the recruitment and activation of cytotoxic CD8+ T lymphocytes (CD8+ CTLs). However, this pathway is frequently dysregulated in many cancers, thus leading to a failure of immunotherapy. Here, we report that activation of the tumor-intrinsic Hippo pathway positively correlates with the expression of MHC class I APP genes and the abundance of CD8+ CTLs in mouse tumors and patients. Blocking the Hippo pathway effector Yes-associated protein/transcriptional enhanced associate domain (YAP/TEAD) potently improves antitumor immunity. Mechanistically, the YAP/TEAD complex cooperates with the nucleosome remodeling and deacetylase complex to repress NLRC5 transcription. The upregulation of NLRC5 by YAP/TEAD depletion or pharmacological inhibition increases the expression of MHC class I APP genes and enhances CD8+ CTL-mediated killing of cancer cells. Collectively, our results suggest a crucial tumor-promoting function of YAP depending on NLRC5 to impair the MHC class I APP pathway and provide a rationale for inhibiting YAP activity in immunotherapy for cancer.
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Affiliation(s)
- Linyuan Peng
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing 211198, China
| | - Liang Zhou
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Cancer Research Center, Department of Pharmacology, Shenzhen University Medical School, Shenzhen 518055, China
| | - Huan Li
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Cancer Research Center, Department of Pharmacology, Shenzhen University Medical School, Shenzhen 518055, China
| | - Xin Zhang
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing 211198, China
| | - Su Li
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing 211198, China
| | - Kai Wang
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing 211198, China
| | - Mei Yang
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing 211198, China
| | - Xiaoyu Ma
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing 211198, China
| | - Danlan Zhang
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Cancer Research Center, Department of Pharmacology, Shenzhen University Medical School, Shenzhen 518055, China
| | - Siliang Xiang
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing 211198, China
| | - Yajun Duan
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing 211198, China
| | - Tianzhi Wang
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing 211198, China
| | - Chunmeng Sun
- State Key Laboratory of Natural Medicines, NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Chen Wang
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing 211198, China
| | - Desheng Lu
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Cancer Research Center, Department of Pharmacology, Shenzhen University Medical School, Shenzhen 518055, China.
| | - Minxian Qian
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing 211198, China.
| | - Zhongyuan Wang
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing 211198, China.
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Nwosu A, Qian M, Phillips J, Hellegers CA, Rushia S, Sneed J, Petrella JR, Goldberg TE, Devanand DP, Doraiswamy PM. Computerized Cognitive Training in Mild Cognitive Impairment: Findings in African Americans and Caucasians. J Prev Alzheimers Dis 2024; 11:149-154. [PMID: 38230727 DOI: 10.14283/jpad.2023.80] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
BACKGROUND African Americans with MCI may be at increased risk for dementia compared to Caucasians. The effect of race on the efficacy of cognitive training in MCI is unclear. METHODS We used data from a two-site, 78-week randomized trial of MCI comparing intensive, home-based, computerized training with Web-based cognitive games or Web-based crossword puzzles to examine the effect of race on outcomes. The study outcomes were changes from baseline in cognitive and functional scales as well as MRI-measured changes in hippocampal volume and cortical thickness. Analyses used linear models adjusted for baseline scores. This was an exploratory study. RESULTS A total of 105 subjects were included comprising 81 whites (77.1%) and 24 African Americans (22.8%). The effect of race on the change from baseline in ADAS-Cog-11 was not significant. The effect of race on change from baseline to week 78 in the Functional Activities Questionnaire (FAQ) was significant with African American participants' FAQ scores showing greater improvements at weeks 52 and 78 (P = 0.009, P = 0.0002, respectively) than white subjects. Within the CCT cohort, FAQ scores for African American participants showed greater improvement between baseline and week 78, compared to white participants randomized to CCT (P = 0.006). There was no effect of race on the UPSA. There was no effect of race on hippocampal or cortical thickness outcomes. CONCLUSIONS Our preliminary findings suggest that web-based cognitive training programs may benefit African Americans with MCI at least as much as Caucasians, and highlight the need to further study underrepresented minorities in AD prevention trials. (Supported by the National Institutes of Health, National Institute on Aging; ClinicalTrials.gov number, NCT03205709.).
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Affiliation(s)
- A Nwosu
- Adaora Nwosu, Neurocognitive Disorders Program, Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA,
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Motter JN, Rushia SN, Qian M, Ndouli C, Nwosu A, Petrella JR, Doraiswamy PM, Goldberg TE, Devanand DP. Expectancy Does Not Predict 18-month Treatment Outcomes with Cognitive Training in Mild Cognitive Impairment. J Prev Alzheimers Dis 2024; 11:71-78. [PMID: 38230719 DOI: 10.14283/jpad.2023.62] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
BACKGROUND Computerized cognitive training (CCT) has emerged as a potential treatment option for mild cognitive impairment (MCI). It remains unclear whether CCT's effect is driven in part by expectancy of improvement. OBJECTIVES This study aimed to determine factors associated with therapeutic expectancy and the influence of therapeutic expectancy on treatment effects in a randomized clinical trial of CCT versus crossword puzzle training (CPT) for older adults with MCI. DESIGN Randomized clinical trial of CCT vs CPT with 78-week follow-up. SETTING Two-site study - New York State Psychiatric Institute and Duke University Medical Center. PARTICIPANTS 107 patients with MCI. INTERVENTION 12 weeks of intensive training with CCT or CPT with follow-up booster training over 78 weeks. MEASUREMENTS Patients rated their expectancies for CCT and CPT prior to randomization. RESULTS Patients reported greater expectancy for CCT than CPT. Lower patient expectancy was associated with lower global cognition at baseline and older age. Expectancy did not differ by sex or race. There was no association between expectancy and measures of everyday functioning, hippocampus volume, or apolipoprotein E genotype. Expectancy was not associated with change in measures of global cognition, everyday functioning, and hippocampus volume from baseline to week 78, nor did expectancy interact with treatment condition. CONCLUSIONS While greater cognitive impairment and increased age was associated with low expectancy of improvement, expectancy was not associated with the likelihood of response to treatment with CPT or CCT.
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Affiliation(s)
- J N Motter
- Jeffrey N. Motter, Department of Psychiatry, Division of Geriatric Psychiatry, 1051 Riverside Drive, New York, NY 10032, United States.
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4
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Zhong HZ, Li CW, Das R, Gu JF, Qian M. Post-yield softening of bending-dominated metal metamaterials. PNAS Nexus 2023; 2:pgad082. [PMID: 37091545 PMCID: PMC10113875 DOI: 10.1093/pnasnexus/pgad082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 02/24/2023] [Accepted: 02/28/2023] [Indexed: 03/17/2023]
Abstract
Abstract
Post-yield softening (PYS) plays an important role in guiding the design of high-performance energy-absorbing lattice materials. PYS is usually restricted to lattice materials that are stretching-dominated according to the Gibson-Ashby model. Contrary to this long-held assumption, this work shows that PYS can also occur in various bending-dominated Ti-6Al-4 V lattices with increasing relative density. The underlying mechanism for this unusual property is elucidated using the Timoshenko-beam theory. It is attributed to the increase in stretching and shear deformation with increasing relative density, thereby increasing the tendency towards PYS. The finding of this work extends perspectives on PYS for the design of high-performance energy-absorbing lattice materials.
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Affiliation(s)
- H Z Zhong
- Institute of Materials Modification and Modelling, Shanghai Jiao Tong University , Shanghai 200240 , China
- Centre for Additive Manufacturing, School of Engineering, RMIT University , Melbourne, VIC 3000 , Australia
| | - C W Li
- Institute of Materials Modification and Modelling, Shanghai Jiao Tong University , Shanghai 200240 , China
| | - R Das
- Centre for Additive Manufacturing, School of Engineering, RMIT University , Melbourne, VIC 3000 , Australia
- Sir Lawrence Wackett Aerospace Research Centre, School of Engineering, RMIT University , GPO Box 2476, Melbourne, VIC 3001 , Australia
| | - J F Gu
- Institute of Materials Modification and Modelling, Shanghai Jiao Tong University , Shanghai 200240 , China
| | - M Qian
- Centre for Additive Manufacturing, School of Engineering, RMIT University , Melbourne, VIC 3000 , Australia
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Zhong HZ, Li CW, Das R, Gu JF, Qian M. Post-yield softening of bending-dominated metal metamaterials. PNAS Nexus 2023; 2:pgad075. [PMID: 37007715 PMCID: PMC10053022 DOI: 10.1093/pnasnexus/pgad075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 02/24/2023] [Accepted: 02/28/2023] [Indexed: 03/12/2023]
Abstract
Abstract
Post-yield softening (PYS) plays an important role in guiding the design of high-performance energy-absorbing lattice materials. PYS is usually restricted to lattice materials that are stretching-dominated according to the Gibson-Ashby model. Contrary to this long-held assumption, this work shows that PYS can also occur in various bending-dominated Ti-6Al-4V lattices with increasing relative density. The underlying mechanism for this unusual property is elucidated using the Timoshenko-beam theory. It is attributed to the increase in stretching and shear deformation with increasing relative density, thereby increasing the tendency towards PYS. The finding of this work extends perspectives on PYS for the design of high-performance energy-absorbing lattice materials.
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Affiliation(s)
- H Z Zhong
- Institute of Materials Modification and Modelling, Shanghai Jiao Tong University , Shanghai 200240 , China
- Centre for Additive Manufacturing, School of Engineering, RMIT University , Melbourne, VIC 3000 , Australia
| | - C W Li
- Institute of Materials Modification and Modelling, Shanghai Jiao Tong University , Shanghai 200240 , China
| | - R Das
- Centre for Additive Manufacturing, School of Engineering, RMIT University , Melbourne, VIC 3000 , Australia
- Sir Lawrence Wackett Aerospace Research Centre, School of Engineering, RMIT University , GPO Box 2476, Melbourne, VIC 3001 , Australia
| | - J F Gu
- Institute of Materials Modification and Modelling, Shanghai Jiao Tong University , Shanghai 200240 , China
| | - M Qian
- Centre for Additive Manufacturing, School of Engineering, RMIT University , Melbourne, VIC 3000 , Australia
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6
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Man J, Cao P, Wang H, Qian X, Miao H, Zhu X, Jiang J, Jiang W, Qian M, Zhai X. REPORT OF SYSTEMIC EBV-POSITIVE T-CELL LYMPHOMA OF CHILDHOOD ASSOCIATED WITH XMEN DISEASE CAUSED BY A NOVEL MUTATION. Leuk Res 2022. [DOI: 10.1016/s0145-2126(22)00283-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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7
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Paz-Ares L, Johnson M, Girard N, Hann C, Ahn MJ, Nishio M, Godard J, Laadem A, Yoshizuka N, Qian M, Cheng B, Rudin C. 1550TiP Phase II, multicenter, randomized, open-label study of DS-7300 in patients (pts) with pre-treated extensive-stage small cell lung cancer (ES-SCLC). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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8
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Doi T, Patel M, Falchook G, Koyama T, Friedman C, Piha-Paul S, Gutierrez M, Abdul-Karim R, Awad M, Adkins D, Takahashi S, Kadowaki S, Cheng B, Ikeda N, Laadem A, Yoshizuka N, Qian M, Dosunmu O, Arkenau HT, Johnson M. 453O DS-7300 (B7-H3 DXd antibody-drug conjugate [ADC]) shows durable antitumor activity in advanced solid tumors: Extended follow-up of a phase I/II study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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9
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Lin Y, Xie M, Qian M, Gao L, Ji MM, Li Y. Cardiac fibroma: characteristics on echocardiography and cardiac magnetic resonance imaging. QJM 2022; 115:412-414. [PMID: 35260886 DOI: 10.1093/qjmed/hcac062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 02/22/2022] [Indexed: 11/12/2022] Open
Affiliation(s)
- Y Lin
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277# Jiefang Ave, Wuhan, 430022, China
- Clinical Research Center for Medical Imaging in Hubei Province, 1277# Jiefang Ave, Wuhan, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, 1277# Jiefang Ave, Wuhan, 430022, China
| | - M Xie
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277# Jiefang Ave, Wuhan, 430022, China
- Clinical Research Center for Medical Imaging in Hubei Province, 1277# Jiefang Ave, Wuhan, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, 1277# Jiefang Ave, Wuhan, 430022, China
| | - M Qian
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277# Jiefang Ave, Wuhan, 430022, China
- Clinical Research Center for Medical Imaging in Hubei Province, 1277# Jiefang Ave, Wuhan, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, 1277# Jiefang Ave, Wuhan, 430022, China
| | - L Gao
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277# Jiefang Ave, Wuhan, 430022, China
- Clinical Research Center for Medical Imaging in Hubei Province, 1277# Jiefang Ave, Wuhan, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, 1277# Jiefang Ave, Wuhan, 430022, China
| | - M M Ji
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277# Jiefang Ave, Wuhan, 430022, China
- Clinical Research Center for Medical Imaging in Hubei Province, 1277# Jiefang Ave, Wuhan, 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, 1277# Jiefang Ave, Wuhan, 430022, China
| | - Y Li
- Department of Ultrasound Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277# Jiefang Ave , Wuhan, 430022, China
- Clinical Research Center for Medical Imaging in Hubei Province, 1277# Jiefang Ave, Wuhan , 430022, China
- Hubei Province Key Laboratory of Molecular Imaging, 1277# Jiefang Ave, Wuhan, 430022, China
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10
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Wu SJ, Liu XH, Wu W, Qian M, Li L, Zhang L, Yang HH, Guan M, Cao J, Wang YN, Ruan GR, Niu N, Liu YX. [Tocilizumab therapy for immune checkpoint inhibitor associated myocarditis: a case report]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:397-400. [PMID: 35399037 DOI: 10.3760/cma.j.cn112148-20210511-00412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- S J Wu
- Department of Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X H Liu
- Department of Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - W Wu
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - M Qian
- Department of Neurology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - L Li
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - L Zhang
- Department of Respiratory and Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H H Yang
- Department of Rheumatology and Immunology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - M Guan
- Department of Oncology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J Cao
- Department of Radiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y N Wang
- Department of Radiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - G R Ruan
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - N Niu
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y X Liu
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Ren J, Wang X, Dong C, Wang G, Zhang W, Cai C, Qian M, Yang D, Ling B, Ning K, Mao Z, Liu B, Wang T, Xiong L, Wang W, Liang A, Gao Z, Xu J. Sirt1 protects subventricular zone derived neural stem cells from DNA double strand breaks and contributes to olfactory function maintenance in aging mice. Stem Cells 2022; 40:493-507. [PMID: 35349711 DOI: 10.1093/stmcls/sxac008] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 12/09/2021] [Indexed: 11/12/2022]
Abstract
Abstract
DNA damage is assumed to accumulate in stem cells over time and their ability to withstand this damage and maintain tissue homeostasis is a key determinant of aging. Nonetheless, relatively few studies have investigated whether DNA damage does indeed accumulate in stem cells and whether this contributes to stem cell aging and functional decline. Here, we found that, compared with young mice, DNA double strand breaks (DSBs) are reduced in subventricular zone (SVZ)-derived neural stem cells (NSCs) of aged mice, which was achieved partly through the adaptive upregulation of Sirt1 expression and non-homologous end joining (NHEJ)-mediated DNA repair. Sirt1 deficiency abolished this effect, leading to stem cell exhaustion, olfactory memory decline, and accelerated aging. The reduced DSBs and the upregulation of Sirt1 expression in SVZ-derived NSCs with age may represent a compensatory mechanism that evolved to protect stem cells from excessive DNA damage, as well as mitigate memory loss and other stresses during aging.
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Affiliation(s)
- Jie Ren
- East Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
- Department of Neuroscience, Sheffield Institute for Translational Neuroscience, University of Sheffield, Sheffield, UK
| | - Xianli Wang
- State Key Laboratory of Oncogenes and Related Genes, Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Chuanming Dong
- Department of Anatomy, Nantong University, Nantong, People's Republic of China
| | - Guangming Wang
- Department of Hematology, Tongji Hospital of Tongji University School of Medicine, Shanghai, People's Republic of China
- Postdoctoral Station of Clinical Medicine, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Wenjun Zhang
- Department of Hematology, Tongji Hospital of Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Chunhui Cai
- Yangzhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Minxian Qian
- Medical Research Center, Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, People's Republic of China
| | - Danjing Yang
- East Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Bin Ling
- Department of Intensive Care Unit, Affiliated Hospital of Yunnan University (The Second People's Hospital of Yunnan Province), Kunming, People's Republic of China
| | - Ke Ning
- Department of Neuroscience, Sheffield Institute for Translational Neuroscience, University of Sheffield, Sheffield, UK
| | - Zhiyong Mao
- School of Life Science and Technology, Tongji University, Shanghai, People's Republic of China
| | - Baohua Liu
- Medical Research Center, Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, People's Republic of China
| | - Tinghua Wang
- Animal Center of Zoology, Institute of Neuroscience, Kunming Medical University, Kunming, People's Republic of China
| | - Liuliu Xiong
- Animal Center of Zoology, Institute of Neuroscience, Kunming Medical University, Kunming, People's Republic of China
| | - Wenyuan Wang
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Science, Shanghai, People's Republic of China
- Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, People's Republic of China
| | - Aibin Liang
- Department of Hematology, Tongji Hospital of Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Zhengliang Gao
- Yangzhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), Tongji University School of Medicine, Shanghai, People's Republic of China
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, People's Republic of China
| | - Jun Xu
- East Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
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12
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Tang X, Cheng L, Li G, Yan YM, Su F, Huang DL, Zhang S, Liu Z, Qian M, Li J, Cheng YX, Liu B. A small-molecule compound D6 overcomes EGFR-T790M-mediated resistance in non-small cell lung cancer. Commun Biol 2021; 4:1391. [PMID: 34903832 PMCID: PMC8668973 DOI: 10.1038/s42003-021-02906-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 11/16/2021] [Indexed: 11/10/2022] Open
Abstract
Non-small cell lung cancer (NSCLC) is a deadly and highly prevalent malignancy. Targeting activated-EGFR mutations in NSCLC via EGFR tyrosine kinase inhibitor (EGFR-TKI) initially achieves a profound therapeutic response, but resistance frequently evolves, reducing treatment options. Here, we present a small-molecule compound D6 which selectively inhibits tumor cell growth and migration in NSCLC cells with EGFR-TKI-resistant T790M-EGFR-activated mutations (T790M-EGFR-AM), e.g., L858R/T790M, 19Del/T790M and L858R/T790M/C797S. D6 mimics a natural product isolated from the roots of Codonopsis pilosula and selectively competes with T790M-EGFR-AM to bind to HSP90, thus facilitating the ubiquitination dependent proteasomal degradation of T790M-EGFR-AM. By contrast, D6 has little impact on typical HSP90 chaperone activity, suggesting low systemic toxicity. Promisingly, D6 combined with erlotinib or osimertinib shows efficacy in overcoming the EGFR-TKIs-resistance in NSCLCs. Our study raises an alternative strategy to overcome T790M-mediated EGFR-TKI resistance in NSCLC via targeting the protein-protein interaction of HSP90 and T790M-EGFR by intervention with D6.
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Affiliation(s)
- Xiaolong Tang
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SKL-SAI), School of Basic Medical Sciences; Institute for Inheritance-Based Innovation of Chinese Medicine, School of Pharmaceutical Sciences, Shenzhen University, Shenzhen, China.
| | - Lizhi Cheng
- grid.263488.30000 0001 0472 9649Shenzhen Key Laboratory for Systemic Aging and Intervention (SKL-SAI), School of Basic Medical Sciences; Institute for Inheritance-Based Innovation of Chinese Medicine, School of Pharmaceutical Sciences, Shenzhen University, Shenzhen, China
| | - Guo Li
- grid.452223.00000 0004 1757 7615Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Yong-Ming Yan
- grid.263488.30000 0001 0472 9649Shenzhen Key Laboratory for Systemic Aging and Intervention (SKL-SAI), School of Basic Medical Sciences; Institute for Inheritance-Based Innovation of Chinese Medicine, School of Pharmaceutical Sciences, Shenzhen University, Shenzhen, China
| | - Fengting Su
- grid.263488.30000 0001 0472 9649Shenzhen Key Laboratory for Systemic Aging and Intervention (SKL-SAI), School of Basic Medical Sciences; Institute for Inheritance-Based Innovation of Chinese Medicine, School of Pharmaceutical Sciences, Shenzhen University, Shenzhen, China
| | - Dan-Ling Huang
- grid.263488.30000 0001 0472 9649Shenzhen Key Laboratory for Systemic Aging and Intervention (SKL-SAI), School of Basic Medical Sciences; Institute for Inheritance-Based Innovation of Chinese Medicine, School of Pharmaceutical Sciences, Shenzhen University, Shenzhen, China
| | - Shuping Zhang
- grid.452223.00000 0004 1757 7615Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Zuojun Liu
- grid.263488.30000 0001 0472 9649Shenzhen Key Laboratory for Systemic Aging and Intervention (SKL-SAI), School of Basic Medical Sciences; Institute for Inheritance-Based Innovation of Chinese Medicine, School of Pharmaceutical Sciences, Shenzhen University, Shenzhen, China
| | - Minxian Qian
- grid.263488.30000 0001 0472 9649Shenzhen Key Laboratory for Systemic Aging and Intervention (SKL-SAI), School of Basic Medical Sciences; Institute for Inheritance-Based Innovation of Chinese Medicine, School of Pharmaceutical Sciences, Shenzhen University, Shenzhen, China
| | - Ji Li
- grid.452223.00000 0004 1757 7615Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Yong-Xian Cheng
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SKL-SAI), School of Basic Medical Sciences; Institute for Inheritance-Based Innovation of Chinese Medicine, School of Pharmaceutical Sciences, Shenzhen University, Shenzhen, China.
| | - Baohua Liu
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SKL-SAI), School of Basic Medical Sciences; Institute for Inheritance-Based Innovation of Chinese Medicine, School of Pharmaceutical Sciences, Shenzhen University, Shenzhen, China. .,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University, Shenzhen, China. .,National Engineering Research Center for Biotechnology (Shenzhen); Marshall Laboratory of Biomedical Engineering; International Cancer Center, Shenzhen University, Shenzhen, China. .,Shenzhen Bay Laboratory, Shenzhen, China.
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13
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Smith JL, Tran N, Song T, Liang D, Qian M. Robust bulk micro-nano hierarchical copper structures possessing exceptional bactericidal efficacy. Biomaterials 2021; 280:121271. [PMID: 34864450 DOI: 10.1016/j.biomaterials.2021.121271] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 11/01/2021] [Accepted: 11/22/2021] [Indexed: 12/29/2022]
Abstract
Conventional copper (Cu) metal surfaces are well recognized for their bactericidal properties. However, their slow bacteria-killing potency has historically excluded them as a rapid bactericidal material. We report the development of a robust bulk superhydrophilic micro-nano hierarchical Cu structure that possesses exceptional bactericidal efficacy. It resulted in a 4.41 log10 reduction (>99.99%) of the deadly Staphylococcus aureus (S. aureus) bacteria within 2 min vs. a 1.49 log10 reduction (96.75%) after 240 min on common Cu surfaces. The adhered cells exhibited extensive blebbing, loss of structural integrity and leakage of vital intracellular material, demonstrating the rapid efficacy of the micro-nano Cu structure in destructing bacteria membrane integrity. The mechanism was attributed to the synergistic degradation of the cell envelope through enhanced release and therefore uptake of the cytotoxic Cu ions and the adhesion-driven mechanical strain due to its rapid ultimate superhydrophilicity (contact angle drops to 0° in 0.18 s). The scalable fabrication of this micro-nano Cu structure was enabled by integrating bespoke precursor alloy design with microstructure preconditioning for dealloying and demonstrated on 2000 mm2 Cu surfaces. This development paves the way to the practical exploitation of Cu as a low-cost antibiotic-free fast bactericidal material.
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Affiliation(s)
- J L Smith
- RMIT University, School of Engineering, Melbourne, Victoria, 3000, Australia; CSIRO, Manufacturing, Clayton, Victoria, 3168, Australia
| | - N Tran
- RMIT University, School of Science, Melbourne, Victoria, 3000, Australia
| | - T Song
- RMIT University, School of Engineering, Melbourne, Victoria, 3000, Australia
| | - D Liang
- CSIRO, Manufacturing, Clayton, Victoria, 3168, Australia
| | - M Qian
- RMIT University, School of Engineering, Melbourne, Victoria, 3000, Australia.
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14
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Wang Q, Long ZB, Qian M, Feng J, Guo XX, Yang AM, You Y, Fei GJ. [The 486th case: chronic diarrhea and orthostatic hypotension]. Zhonghua Nei Ke Za Zhi 2021; 60:284-288. [PMID: 33663184 DOI: 10.3760/cma.j.cn112138-20200318-00260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A 57-year-old man was admitted to hospital with diarrhea for 10 months and dizziness for 4 months. The patient had 1-2 liters watery stool per day, without pyogenic blood or abnormality in gastroenteroscopy examination. The level of hemoglobin and albumin was generally normal, and fasting test was positive. At the same time, he was accompanied with hyperalgesia of lower limbs and orthostatic hypotension. After the discussion of multiple disciplinary teams, the patient was diagnosed with amyloidosis by sural nerve biopsy, myocardial MRI, and the assays of urine immunoelectrophoresis and serum free light chain. Light chain amyloidosis was confirmed after excluded the diagnosis of familial amyloidosis. The patient was improved after courses of chemotherapy with melphalan and dexamethasone.
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Affiliation(s)
- Q Wang
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Z B Long
- Department of Hematology, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - M Qian
- Department of Neurology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J Feng
- Department of Hematology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X X Guo
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - A M Yang
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y You
- Department of Pathology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - G J Fei
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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15
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Qian M, Zheng JL, Kang N, Su YL. Down-regulation of long noncoding RNA PGM5-AS1 correlates with tumor progression and predicts poor prognosis in clear cell renal cell carcinoma. Eur Rev Med Pharmacol Sci 2021; 23:10685-10690. [PMID: 31858536 DOI: 10.26355/eurrev_201912_19767] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Growing studies have shown that long non-coding RNAs (lncRNAs) have critical regulatory roles in tumorigenesis. Recently, a newly identified lncRNA, Homo sapiens PGM5 antisense RNA 1 (PGM5-AS1), was found to be dysregulated in several tumors. However, its roles in clear cell renal cell carcinoma (ccRCC) have not been investigated. The aim of the present study was to clarify the clinical significance of PGM5-AS1 in ccRCC patients. PATIENTS AND METHODS The PGM5-AS1 expression levels were evaluated in 182 primary ccRCC patients using quantitative real-time PCR assays. The associations between expression of PGM5-AS1, clinicopathological parameters, and prognosis of ccRCC were examined using Chi-square test, Kaplan-Meier assays, and multivariate assays. RESULTS The expressions of PGM5-AS1 in cancer specimens were lower than those in matched non-tumor specimens from the ccRCC patient (p<0.05). Downregulation of PGM5-AS1 was closely associated with more advanced clinical features, including lymph nodes metastasis (p=0.007) and distant metastasis (p=0.037). A clinical study revealed that ccRCC patients with lower PGM5-AS1 expressions had substantially shorter overall survival (OS) and disease-free survival (DFS) than patients with higher PGM5-AS1 expressions. Further multivariate assays demonstrated that PGM5-AS1 was identified as an independent prognostic factor for patients with ccRCC. CONCLUSIONS Down-regulation of PGM5-AS1 in ccRCC tissues had a strong association with unfavorable outcomes and PGM5-AS1 might be a potential tumor suppressor.
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Affiliation(s)
- M Qian
- Department of Laboratory, Jinan First People's Hospital, Jinan, Shandong, China.
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16
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Peng L, Qian M, Liu Z, Tang X, Sun J, Jiang Y, Sun S, Cao X, Pang Q, Liu B. Deacetylase-independent function of SIRT6 couples GATA4 transcription factor and epigenetic activation against cardiomyocyte apoptosis. Nucleic Acids Res 2020; 48:4992-5005. [PMID: 32239217 PMCID: PMC7229816 DOI: 10.1093/nar/gkaa214] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 02/21/2020] [Accepted: 03/25/2020] [Indexed: 12/11/2022] Open
Abstract
SIRT6 deacetylase activity improves stress resistance via gene silencing and genome maintenance. Here, we reveal a deacetylase-independent function of SIRT6, which promotes anti-apoptotic gene expression via the transcription factor GATA4. SIRT6 recruits TIP60 acetyltransferase to acetylate GATA4 at K328/330, thus enhancing its chromatin binding capacity. In turn, GATA4 inhibits the deacetylase activity of SIRT6, thus ensuring the local chromatin accessibility via TIP60-promoted H3K9 acetylation. Significantly, the treatment of doxorubicin (DOX), an anti-cancer chemotherapeutic, impairs the SIRT6-TIP60-GATA4 trimeric complex, blocking GATA4 acetylation and causing cardiomyocyte apoptosis. While GATA4 hyperacetylation-mimic retains the protective effect against DOX, the hypoacetylation-mimic loses such ability. Thus, the data reveal a novel SIRT6-TIP60-GATA4 axis, which promotes the anti-apoptotic pathway to prevent DOX toxicity. Targeting the trimeric complex constitutes a new strategy to improve the safety of DOX chemotherapy in clinical application.
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Affiliation(s)
- Linyuan Peng
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Medical Research Center, Shenzhen University Health Science Center, Shenzhen 518055, China.,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University, Shenzhen 518055, China
| | - Minxian Qian
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Medical Research Center, Shenzhen University Health Science Center, Shenzhen 518055, China.,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University, Shenzhen 518055, China
| | - Zuojun Liu
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Medical Research Center, Shenzhen University Health Science Center, Shenzhen 518055, China.,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University, Shenzhen 518055, China
| | - Xiaolong Tang
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Medical Research Center, Shenzhen University Health Science Center, Shenzhen 518055, China.,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University, Shenzhen 518055, China
| | - Jie Sun
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Medical Research Center, Shenzhen University Health Science Center, Shenzhen 518055, China.,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University, Shenzhen 518055, China
| | - Yue Jiang
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Medical Research Center, Shenzhen University Health Science Center, Shenzhen 518055, China.,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University, Shenzhen 518055, China
| | - Shimin Sun
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Medical Research Center, Shenzhen University Health Science Center, Shenzhen 518055, China.,Anti-aging & Regenerative Medicine Research Institution, School of Life Sciences, Shandong University of Technology, Zibo 255049, China
| | - Xinyue Cao
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Medical Research Center, Shenzhen University Health Science Center, Shenzhen 518055, China
| | - Qiuxiang Pang
- Anti-aging & Regenerative Medicine Research Institution, School of Life Sciences, Shandong University of Technology, Zibo 255049, China
| | - Baohua Liu
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Medical Research Center, Shenzhen University Health Science Center, Shenzhen 518055, China.,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University, Shenzhen 518055, China.,Carson International Cancer Center, Shenzhen University Health Science Center, Shenzhen 518055, China.,Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, School of Basic Medical Sciences, Shenzhen University, Shenzhen 518055, China
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17
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Li G, Tang X, Zhang S, Jin M, Wang M, Deng Z, Liu Z, Qian M, Shi W, Wang Z, Xie H, Li J, Liu B. SIRT7 activates quiescent hair follicle stem cells to ensure hair growth in mice. EMBO J 2020; 39:e104365. [PMID: 32696520 PMCID: PMC7507325 DOI: 10.15252/embj.2019104365] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 06/11/2020] [Accepted: 06/14/2020] [Indexed: 12/17/2022] Open
Abstract
Hair follicle stem cells (HFSCs) are maintained in a quiescent state until activated to grow, but the mechanisms that reactivate the quiescent HFSC reservoir are unclear. Here, we find that loss of Sirt7 in mice impedes hair follicle life‐cycle transition from telogen to anagen phase, resulting in delay of hair growth. Conversely, Sirt7 overexpression during telogen phase facilitated HSFC anagen entry and accelerated hair growth. Mechanistically, Sirt7 is upregulated in HFSCs during the telogen‐to‐anagen transition, and HFSC‐specific Sirt7 knockout mice (Sirt7f/f;K15‐Cre) exhibit a similar hair growth delay. At the molecular level, Sirt7 interacts with and deacetylates the transcriptional regulator Nfatc1 at K612, causing PA28γ‐dependent proteasomal degradation to terminate Nfatc1‐mediated telogen quiescence and boost anagen entry. Cyclosporin A, a potent calcineurin inhibitor, suppresses nuclear retention of Nfatc1, abrogates hair follicle cycle delay, and promotes hair growth in Sirt7−/− mice. Furthermore, Sirt7 is downregulated in aged HFSCs, and exogenous Sirt7 overexpression promotes hair growth in aged animals. These data reveal that Sirt7 activates HFSCs by destabilizing Nfatc1 to ensure hair follicle cycle initiation.
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Affiliation(s)
- Guo Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Xiaolong Tang
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SAI), National Engineering Research Center for Biotechnology (Shenzhen), International Cancer Center, Shenzhen University, Shenzhen, China.,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University, Shenzhen, China
| | - Shuping Zhang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Meiling Jin
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Ming Wang
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SAI), National Engineering Research Center for Biotechnology (Shenzhen), International Cancer Center, Shenzhen University, Shenzhen, China.,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University, Shenzhen, China
| | - Zhili Deng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Zuojun Liu
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SAI), National Engineering Research Center for Biotechnology (Shenzhen), International Cancer Center, Shenzhen University, Shenzhen, China.,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University, Shenzhen, China
| | - Minxian Qian
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SAI), National Engineering Research Center for Biotechnology (Shenzhen), International Cancer Center, Shenzhen University, Shenzhen, China.,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University, Shenzhen, China
| | - Wei Shi
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Zimei Wang
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SAI), National Engineering Research Center for Biotechnology (Shenzhen), International Cancer Center, Shenzhen University, Shenzhen, China.,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University, Shenzhen, China
| | - Hongfu Xie
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Ji Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, Hunan, China.,Department of Dermatology, The Second Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Baohua Liu
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SAI), National Engineering Research Center for Biotechnology (Shenzhen), International Cancer Center, Shenzhen University, Shenzhen, China.,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University, Shenzhen, China.,Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
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18
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Zhang Z, Fisher AS, Hoffmann MC, Jacobson B, Kirchmann PS, Lee WS, Lindenberg A, Marinelli A, Nanni E, Schoenlein R, Qian M, Sasaki S, Xu J, Huang Z. A high-power, high-repetition-rate THz source for pump-probe experiments at Linac Coherent Light Source II. J Synchrotron Radiat 2020; 27:890-901. [PMID: 33565997 PMCID: PMC7336180 DOI: 10.1107/s1600577520005147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 04/13/2020] [Indexed: 06/12/2023]
Abstract
Experiments using a THz pump and an X-ray probe at an X-ray free-electron laser (XFEL) facility like the Linac Coherent Light Source II (LCLS II) require frequency-tunable (3 to 20 THz), narrow bandwidth (∼10%), carrier-envelope-phase-stable THz pulses that produce high fields (>1 MV cm-1) at the repetition rate of the X-rays and are well synchronized with them. In this paper, a two-bunch scheme to generate THz radiation at LCLS II is studied: the first bunch produces THz radiation in an electromagnet wiggler immediately following the LCLS II undulator that produces X-rays from the second bunch. The initial time delay between the two bunches is optimized to compensate for the path difference in THz transport. The two-bunch beam dynamics, the THz wiggler and radiation are described, as well as the transport system bringing the THz pulses from the wiggler to the experimental hall.
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Affiliation(s)
- Z. Zhang
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - A. S. Fisher
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - M. C. Hoffmann
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - B. Jacobson
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - P. S. Kirchmann
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - W.-S. Lee
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - A. Lindenberg
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - A. Marinelli
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - E. Nanni
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - R. Schoenlein
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - M. Qian
- Argonne National Laboratory, Lemont, IL 60439, USA
| | - S. Sasaki
- Argonne National Laboratory, Lemont, IL 60439, USA
| | - J. Xu
- Argonne National Laboratory, Lemont, IL 60439, USA
| | - Z. Huang
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
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19
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Meng F, Qian M, Peng B, Peng L, Wang X, Zheng K, Liu Z, Tang X, Zhang S, Sun S, Cao X, Pang Q, Zhao B, Ma W, Songyang Z, Xu B, Zhu WG, Xu X, Liu B. Synergy between SIRT1 and SIRT6 helps recognize DNA breaks and potentiates the DNA damage response and repair in humans and mice. eLife 2020; 9:55828. [PMID: 32538779 PMCID: PMC7324161 DOI: 10.7554/elife.55828] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 06/13/2020] [Indexed: 12/16/2022] Open
Abstract
The DNA damage response (DDR) is a highly orchestrated process but how double-strand DNA breaks (DSBs) are initially recognized is unclear. Here, we show that polymerized SIRT6 deacetylase recognizes DSBs and potentiates the DDR in human and mouse cells. First, SIRT1 deacetylates SIRT6 at residue K33, which is important for SIRT6 polymerization and mobilization toward DSBs. Then, K33-deacetylated SIRT6 anchors to γH2AX, allowing its retention on and subsequent remodeling of local chromatin. We show that a K33R mutation that mimics hypoacetylated SIRT6 can rescue defective DNA repair as a result of SIRT1 deficiency in cultured cells. These data highlight the synergistic action between SIRTs in the spatiotemporal regulation of the DDR and DNA repair in humans and mice.
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Affiliation(s)
- Fanbiao Meng
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Shenzhen University Health Science Center, Shenzhen, China.,The Key Laboratory of Breast Cancer Prevention and Therapy, Ministry of Education, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin, China
| | - Minxian Qian
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Shenzhen University Health Science Center, Shenzhen, China.,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Bin Peng
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Linyuan Peng
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Shenzhen University Health Science Center, Shenzhen, China.,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Xiaohui Wang
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Shenzhen University Health Science Center, Shenzhen, China.,International Cancer Center, Shenzhen University Health Science Center, Shenzhen, China
| | - Kang Zheng
- Anti-aging & Regenerative Medicine Research Institution, School of Life Sciences, Shandong University of Technology, Zibo, China
| | - Zuojun Liu
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Shenzhen University Health Science Center, Shenzhen, China.,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Xiaolong Tang
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Shenzhen University Health Science Center, Shenzhen, China.,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Shuju Zhang
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Shimin Sun
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Shenzhen University Health Science Center, Shenzhen, China.,Anti-aging & Regenerative Medicine Research Institution, School of Life Sciences, Shandong University of Technology, Zibo, China
| | - Xinyue Cao
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Shenzhen University Health Science Center, Shenzhen, China.,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Qiuxiang Pang
- Anti-aging & Regenerative Medicine Research Institution, School of Life Sciences, Shandong University of Technology, Zibo, China
| | - Bosheng Zhao
- Anti-aging & Regenerative Medicine Research Institution, School of Life Sciences, Shandong University of Technology, Zibo, China
| | - Wenbin Ma
- Key Laboratory of Gene Engineering of the Ministry of Education and State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Zhou Songyang
- Key Laboratory of Gene Engineering of the Ministry of Education and State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Bo Xu
- The Key Laboratory of Breast Cancer Prevention and Therapy, Ministry of Education, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin, China
| | - Wei-Guo Zhu
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China.,International Cancer Center, Shenzhen University Health Science Center, Shenzhen, China
| | - Xingzhi Xu
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China.,International Cancer Center, Shenzhen University Health Science Center, Shenzhen, China
| | - Baohua Liu
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Shenzhen University Health Science Center, Shenzhen, China.,Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China.,International Cancer Center, Shenzhen University Health Science Center, Shenzhen, China.,Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
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20
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Wang M, Wang L, Qian M, Tang X, Liu Z, Lai Y, Ao Y, Huang Y, Meng Y, Shi L, Peng L, Cao X, Wang Z, Qin B, Liu B. PML2-mediated thread-like nuclear bodies mark late senescence in Hutchinson-Gilford progeria syndrome. Aging Cell 2020; 19:e13147. [PMID: 32351002 PMCID: PMC7294779 DOI: 10.1111/acel.13147] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 01/20/2020] [Accepted: 02/23/2020] [Indexed: 01/10/2023] Open
Abstract
Progerin accumulation disrupts nuclear lamina integrity and causes nuclear structure abnormalities, leading to premature aging, that is, Hutchinson–Gilford progeria syndrome (HGPS). The roles of nuclear subcompartments, such as PML nuclear bodies (PML NBs), in HGPS pathogenesis, are unclear. Here, we show that classical dot‐like PML NBs are reorganized into thread‐like structures in HGPS patient fibroblasts and their presence is associated with late stage of senescence. By co‐immunoprecipitation analysis, we show that farnesylated Progerin interacts with human PML2, which accounts for the formation of thread‐like PML NBs. Specifically, human PML2 but not PML1 overexpression in HGPS cells promotes PML thread development and accelerates senescence. Further immunofluorescence microscopy, immuno‐TRAP, and deep sequencing data suggest that these irregular PML NBs might promote senescence by perturbing NB‐associated DNA repair and gene expression in HGPS cells. These data identify irregular structures of PML NBs in senescent HGPS cells and support that the thread‐like PML NBs might be a novel, morphological, and functional biomarker of late senescence.
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Affiliation(s)
- Ming Wang
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SAI) National Engineering Research Center for Biotechnology (Shenzhen) Medical Research Center Shenzhen University Health Science Center Shenzhen China
- Guangdong Key Laboratory for Genome Stability and Human Disease Prevention Department of Biochemistry & Molecular Biology School of Basic Medical Sciences Shenzhen University Health Science Center Shenzhen China
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine Guangzhou Institutes of Biomedicine and Health Chinese Academy of Sciences Guangzhou China
| | - Lulu Wang
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine Guangzhou Institutes of Biomedicine and Health Chinese Academy of Sciences Guangzhou China
| | - Minxian Qian
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SAI) National Engineering Research Center for Biotechnology (Shenzhen) Medical Research Center Shenzhen University Health Science Center Shenzhen China
- Guangdong Key Laboratory for Genome Stability and Human Disease Prevention Department of Biochemistry & Molecular Biology School of Basic Medical Sciences Shenzhen University Health Science Center Shenzhen China
| | - Xiaolong Tang
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SAI) National Engineering Research Center for Biotechnology (Shenzhen) Medical Research Center Shenzhen University Health Science Center Shenzhen China
- Guangdong Key Laboratory for Genome Stability and Human Disease Prevention Department of Biochemistry & Molecular Biology School of Basic Medical Sciences Shenzhen University Health Science Center Shenzhen China
| | - Zuojun Liu
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SAI) National Engineering Research Center for Biotechnology (Shenzhen) Medical Research Center Shenzhen University Health Science Center Shenzhen China
- Guangdong Key Laboratory for Genome Stability and Human Disease Prevention Department of Biochemistry & Molecular Biology School of Basic Medical Sciences Shenzhen University Health Science Center Shenzhen China
| | - Yiwei Lai
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine Guangzhou Institutes of Biomedicine and Health Chinese Academy of Sciences Guangzhou China
| | - Ying Ao
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SAI) National Engineering Research Center for Biotechnology (Shenzhen) Medical Research Center Shenzhen University Health Science Center Shenzhen China
- Guangdong Key Laboratory for Genome Stability and Human Disease Prevention Department of Biochemistry & Molecular Biology School of Basic Medical Sciences Shenzhen University Health Science Center Shenzhen China
| | - Yinghua Huang
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine Guangzhou Institutes of Biomedicine and Health Chinese Academy of Sciences Guangzhou China
| | - Yuan Meng
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SAI) National Engineering Research Center for Biotechnology (Shenzhen) Medical Research Center Shenzhen University Health Science Center Shenzhen China
- Guangdong Key Laboratory for Genome Stability and Human Disease Prevention Department of Biochemistry & Molecular Biology School of Basic Medical Sciences Shenzhen University Health Science Center Shenzhen China
| | - Lei Shi
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SAI) National Engineering Research Center for Biotechnology (Shenzhen) Medical Research Center Shenzhen University Health Science Center Shenzhen China
- Guangdong Key Laboratory for Genome Stability and Human Disease Prevention Department of Biochemistry & Molecular Biology School of Basic Medical Sciences Shenzhen University Health Science Center Shenzhen China
| | - Linyuan Peng
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SAI) National Engineering Research Center for Biotechnology (Shenzhen) Medical Research Center Shenzhen University Health Science Center Shenzhen China
- Guangdong Key Laboratory for Genome Stability and Human Disease Prevention Department of Biochemistry & Molecular Biology School of Basic Medical Sciences Shenzhen University Health Science Center Shenzhen China
| | - Xinyue Cao
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SAI) National Engineering Research Center for Biotechnology (Shenzhen) Medical Research Center Shenzhen University Health Science Center Shenzhen China
- Guangdong Key Laboratory for Genome Stability and Human Disease Prevention Department of Biochemistry & Molecular Biology School of Basic Medical Sciences Shenzhen University Health Science Center Shenzhen China
| | - Zimei Wang
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SAI) National Engineering Research Center for Biotechnology (Shenzhen) Medical Research Center Shenzhen University Health Science Center Shenzhen China
- Guangdong Key Laboratory for Genome Stability and Human Disease Prevention Department of Biochemistry & Molecular Biology School of Basic Medical Sciences Shenzhen University Health Science Center Shenzhen China
- Carson International Cancer Center Shenzhen University Health Science Center Shenzhen China
| | - Baoming Qin
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine Guangzhou Institutes of Biomedicine and Health Chinese Academy of Sciences Guangzhou China
| | - Baohua Liu
- Shenzhen Key Laboratory for Systemic Aging and Intervention (SAI) National Engineering Research Center for Biotechnology (Shenzhen) Medical Research Center Shenzhen University Health Science Center Shenzhen China
- Guangdong Key Laboratory for Genome Stability and Human Disease Prevention Department of Biochemistry & Molecular Biology School of Basic Medical Sciences Shenzhen University Health Science Center Shenzhen China
- Carson International Cancer Center Shenzhen University Health Science Center Shenzhen China
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases School of Basic Medical Sciences Shenzhen University Health Science Center Shenzhen China
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21
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Tang X, Li G, Su F, Cai Y, Shi L, Meng Y, Liu Z, Sun J, Wang M, Qian M, Wang Z, Xu X, Cheng YX, Zhu WG, Liu B. HDAC8 cooperates with SMAD3/4 complex to suppress SIRT7 and promote cell survival and migration. Nucleic Acids Res 2020; 48:2912-2923. [PMID: 31970414 PMCID: PMC7102950 DOI: 10.1093/nar/gkaa039] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 01/08/2020] [Accepted: 01/13/2020] [Indexed: 12/31/2022] Open
Abstract
NAD+-dependent SIRT7 deacylase plays essential roles in ribosome biogenesis, stress response, genome integrity, metabolism and aging, while how it is transcriptionally regulated is still largely unclear. TGF-β signaling is highly conserved in multicellular organisms, regulating cell growth, cancer stemness, migration and invasion. Here, we demonstrate that histone deacetylase HDAC8 forms complex with SMAD3/4 heterotrimer and occupies SIRT7 promoter, wherein it deacetylates H4 and thus suppresses SIRT7 transcription. Treatment with HDAC8 inhibitor compromises TGF-β signaling via SIRT7-SMAD4 axis and consequently, inhibits lung metastasis and improves chemotherapy efficacy in breast cancer. Our data establish a regulatory feedback loop of TGF-β signaling, wherein HDAC8 as a novel cofactor of SMAD3/4 complex, transcriptionally suppresses SIRT7 via local chromatin remodeling and thus further activates TGF-β signaling. Targeting HDAC8 exhibits therapeutic potential for TGF-β signaling related diseases.
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Affiliation(s)
- Xiaolong Tang
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Medical Research Center, Shenzhen University, Shenzhen 518055, China.,Guangdong Key Laboratory for Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen 518055, China
| | - Guo Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Fengting Su
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Medical Research Center, Shenzhen University, Shenzhen 518055, China.,Guangdong Key Laboratory for Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen 518055, China
| | - Yanlin Cai
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Medical Research Center, Shenzhen University, Shenzhen 518055, China.,Guangdong Key Laboratory for Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen 518055, China
| | - Lei Shi
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Medical Research Center, Shenzhen University, Shenzhen 518055, China.,Guangdong Key Laboratory for Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen 518055, China
| | - Yuan Meng
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Medical Research Center, Shenzhen University, Shenzhen 518055, China.,Guangdong Key Laboratory for Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen 518055, China
| | - Zuojun Liu
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Medical Research Center, Shenzhen University, Shenzhen 518055, China.,Guangdong Key Laboratory for Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen 518055, China
| | - Jie Sun
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Medical Research Center, Shenzhen University, Shenzhen 518055, China.,Guangdong Key Laboratory for Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen 518055, China
| | - Ming Wang
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Medical Research Center, Shenzhen University, Shenzhen 518055, China.,Guangdong Key Laboratory for Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen 518055, China
| | - Minxian Qian
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Medical Research Center, Shenzhen University, Shenzhen 518055, China.,Guangdong Key Laboratory for Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen 518055, China
| | - Zimei Wang
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Medical Research Center, Shenzhen University, Shenzhen 518055, China.,Guangdong Key Laboratory for Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen 518055, China.,Carson International Cancer Center, Shenzhen University Health Science Center, Shenzhen 518055, China
| | - Xingzhi Xu
- Guangdong Key Laboratory for Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen 518055, China.,Carson International Cancer Center, Shenzhen University Health Science Center, Shenzhen 518055, China
| | - Yong-Xian Cheng
- Guangdong Key Laboratory for Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen 518055, China
| | - Wei-Guo Zhu
- Guangdong Key Laboratory for Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen 518055, China.,Carson International Cancer Center, Shenzhen University Health Science Center, Shenzhen 518055, China
| | - Baohua Liu
- Shenzhen Key Laboratory for Systemic Aging and Intervention, National Engineering Research Center for Biotechnology (Shenzhen), Medical Research Center, Shenzhen University, Shenzhen 518055, China.,Guangdong Key Laboratory for Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen 518055, China.,Carson International Cancer Center, Shenzhen University Health Science Center, Shenzhen 518055, China.,Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen 518055, China
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22
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Sun S, Qin W, Tang X, Meng Y, Hu W, Zhang S, Qian M, Liu Z, Cao X, Pang Q, Zhao B, Wang Z, Zhou Z, Liu B. Vascular endothelium-targeted Sirt7 gene therapy rejuvenates blood vessels and extends life span in a Hutchinson-Gilford progeria model. Sci Adv 2020; 6:eaay5556. [PMID: 32128409 PMCID: PMC7030934 DOI: 10.1126/sciadv.aay5556] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 12/04/2019] [Indexed: 05/02/2023]
Abstract
Vascular dysfunction is a typical characteristic of aging, but its contributing roles to systemic aging and the therapeutic potential are lacking experimental evidence. Here, we generated a knock-in mouse model with the causative Hutchinson-Gilford progeria syndrome (HGPS) LmnaG609G mutation, called progerin. The Lmnaf/f ;TC mice with progerin expression induced by Tie2-Cre exhibit defective microvasculature and neovascularization, accelerated aging, and shortened life span. Single-cell transcriptomic analysis of murine lung endothelial cells revealed a substantial up-regulation of inflammatory response. Molecularly, progerin interacts and destabilizes deacylase Sirt7; ectopic expression of Sirt7 alleviates the inflammatory response caused by progerin in endothelial cells. Vascular endothelium-targeted Sirt7 gene therapy, driven by an ICAM2 promoter, improves neovascularization, ameliorates aging features, and extends life span in Lmnaf/f ;TC mice. These data support endothelial dysfunction as a primary trigger of systemic aging and highlight gene therapy as a potential strategy for the clinical treatment of HGPS and age-related vascular dysfunction.
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Affiliation(s)
- Shimin Sun
- Anti-aging & Regenerative Medicine Research Institution, School of Life Sciences, Shandong University of Technology, Zibo 255049, China
- National Engineering Research Center for Biotechnology (Shenzhen), Carson International Cancer Center, Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China
| | - Weifeng Qin
- National Engineering Research Center for Biotechnology (Shenzhen), Carson International Cancer Center, Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China
| | - Xiaolong Tang
- National Engineering Research Center for Biotechnology (Shenzhen), Carson International Cancer Center, Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China
| | - Yuan Meng
- National Engineering Research Center for Biotechnology (Shenzhen), Carson International Cancer Center, Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China
| | - Wenjing Hu
- National Engineering Research Center for Biotechnology (Shenzhen), Carson International Cancer Center, Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China
| | - Shuju Zhang
- National Engineering Research Center for Biotechnology (Shenzhen), Carson International Cancer Center, Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China
| | - Minxian Qian
- National Engineering Research Center for Biotechnology (Shenzhen), Carson International Cancer Center, Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen 518055, China
| | - Zuojun Liu
- National Engineering Research Center for Biotechnology (Shenzhen), Carson International Cancer Center, Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen 518055, China
| | - Xinyue Cao
- National Engineering Research Center for Biotechnology (Shenzhen), Carson International Cancer Center, Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen 518055, China
| | - Qiuxiang Pang
- Anti-aging & Regenerative Medicine Research Institution, School of Life Sciences, Shandong University of Technology, Zibo 255049, China
| | - Bosheng Zhao
- Anti-aging & Regenerative Medicine Research Institution, School of Life Sciences, Shandong University of Technology, Zibo 255049, China
| | - Zimei Wang
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen 518055, China
| | - Zhongjun Zhou
- School of Biological Sciences, Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - Baohua Liu
- National Engineering Research Center for Biotechnology (Shenzhen), Carson International Cancer Center, Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen 518055, China
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen 518055, China
- Corresponding author.
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23
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Gao XM, Jia MN, Qian M, Ren HT, Zhang L, Shen KN, Cao XX, Li J. [Anti-myelin-associated glycoprotein antibody positive IgM monoclonal gammopathy related peripheral neuropathy: 11 cases and literature review]. Zhonghua Xue Ye Xue Za Zhi 2019; 40:901-905. [PMID: 31856437 PMCID: PMC7342372 DOI: 10.3760/cma.j.issn.0253-2727.2019.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
目的 提高对罕见的抗髓鞘相关糖蛋白(MAG)抗体阳性的IgM相关性周围神经病(IgM-PN)的认识。 方法 总结2014年1月至2019年4月北京协和医院诊断的11例抗MAG抗体阳性的IgM-PN患者的临床特点、实验室检查、治疗方案和预后。 结果 11例患者中,男8例,女3例,中位发病年龄63(52~77)岁。其中9例患者以远端肢体麻木起病,6例伴肌力减退。神经传导速度检查示,均为周围神经脱髓鞘损害,以下肢感觉神经损害为主,6例伴慢性轴索损害。11例患者均存在血清IgM型单克隆免疫球蛋白,6例为IgM κ型,3例为IgM λ型,2例为IgM κ/IgG κ双克隆型。3例患者继发于巨球蛋白血症。11例患者的血清抗MAG抗体均为阳性。9例患者接受利妥昔单抗单药或联合化疗,治疗后7例患者的神经症状稳定或改善。 结论 抗MAG抗体阳性的IgM-PN是一种罕见的M蛋白相关性疾病。对于伴IgM型M蛋白的周围神经病患者,应常规筛查抗MAG抗体。基于利妥昔单抗的治疗可作为其一线治疗方案。
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Affiliation(s)
- X M Gao
- Department of Hematology, Peking Union Medical College Hospital, Chinese Academy of Medicine Sciences, Beijing 100730, China
| | - M N Jia
- Department of Hematology, Peking Union Medical College Hospital, Chinese Academy of Medicine Sciences, Beijing 100730, China
| | - M Qian
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medicine Sciences, Beijing 100730, China
| | - H T Ren
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medicine Sciences, Beijing 100730, China
| | - L Zhang
- Department of Hematology, Peking Union Medical College Hospital, Chinese Academy of Medicine Sciences, Beijing 100730, China
| | - K N Shen
- Department of Hematology, Peking Union Medical College Hospital, Chinese Academy of Medicine Sciences, Beijing 100730, China
| | - X X Cao
- Department of Hematology, Peking Union Medical College Hospital, Chinese Academy of Medicine Sciences, Beijing 100730, China
| | - J Li
- Department of Hematology, Peking Union Medical College Hospital, Chinese Academy of Medicine Sciences, Beijing 100730, China
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24
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Liu Z, Qian M, Tang X, Hu W, Sun S, Li G, Zhang S, Meng F, Cao X, Sun J, Xu C, Tan B, Pang Q, Zhao B, Wang Z, Guan Y, Ruan X, Liu B. SIRT7 couples light-driven body temperature cues to hepatic circadian phase coherence and gluconeogenesis. Nat Metab 2019; 1:1141-1156. [PMID: 32694864 DOI: 10.1038/s42255-019-0136-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Accepted: 10/07/2019] [Indexed: 12/24/2022]
Abstract
The central pacemaker in the hypothalamic suprachiasmatic nucleus (SCN) synchronizes peripheral oscillators to coordinate physiological and behavioural activities throughout the body. How circadian phase coherence between the SCN and the periphery is controlled is not well understood. Here, we identify hepatic SIRT7 as an early responsive element to light that ensures circadian phase coherence in the mouse liver. The SCN-driven body temperature (BT) oscillation induces rhythmic expression of HSP70, which promotes SIRT7 ubiquitination and proteasomal degradation. Acute temperature challenge dampens the BT oscillation and causes an advanced liver circadian phase. Further, hepatic SIRT7 deacetylates CRY1, promotes its FBXL3-mediated degradation and regulates the hepatic clock and glucose homeostasis. Loss of Sirt7 in mice leads to an advanced liver circadian phase and rapid entrainment of the hepatic clock upon daytime-restricted feeding. These data identify a BT-HSP70-SIRT7-CRY1 axis that couples the mouse hepatic clock to the central pacemaker and ensures circadian phase coherence and glucose homeostasis.
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Affiliation(s)
- Zuojun Liu
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China
- National Engineering Research Center for Biotechnology (Shenzhen), Carson International Cancer Center, Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Minxian Qian
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China
- National Engineering Research Center for Biotechnology (Shenzhen), Carson International Cancer Center, Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Xiaolong Tang
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China
- National Engineering Research Center for Biotechnology (Shenzhen), Carson International Cancer Center, Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Wenjing Hu
- National Engineering Research Center for Biotechnology (Shenzhen), Carson International Cancer Center, Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China
- Anti-aging and Regenerative Medicine Research Institution, School of Life Sciences, Shandong University of Technology, Zibo, China
| | - Shimin Sun
- National Engineering Research Center for Biotechnology (Shenzhen), Carson International Cancer Center, Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China
- Anti-aging and Regenerative Medicine Research Institution, School of Life Sciences, Shandong University of Technology, Zibo, China
| | - Guo Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Shuju Zhang
- National Engineering Research Center for Biotechnology (Shenzhen), Carson International Cancer Center, Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Fanbiao Meng
- National Engineering Research Center for Biotechnology (Shenzhen), Carson International Cancer Center, Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Xinyue Cao
- National Engineering Research Center for Biotechnology (Shenzhen), Carson International Cancer Center, Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Jie Sun
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China
- National Engineering Research Center for Biotechnology (Shenzhen), Carson International Cancer Center, Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Cheng Xu
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China
- National Engineering Research Center for Biotechnology (Shenzhen), Carson International Cancer Center, Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Bing Tan
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China
- National Engineering Research Center for Biotechnology (Shenzhen), Carson International Cancer Center, Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Qiuxiang Pang
- Anti-aging and Regenerative Medicine Research Institution, School of Life Sciences, Shandong University of Technology, Zibo, China
| | - Bosheng Zhao
- Anti-aging and Regenerative Medicine Research Institution, School of Life Sciences, Shandong University of Technology, Zibo, China
| | - Zimei Wang
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China
| | - Youfei Guan
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, China
| | - Xiongzhong Ruan
- Department of Renal Medicine, University College London, London, UK
- Centre for Lipid Research and Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Baohua Liu
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China.
- National Engineering Research Center for Biotechnology (Shenzhen), Carson International Cancer Center, Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China.
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, China.
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25
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Qian M, Song NJ. Serum calprotectin correlates with risk and disease severity in psoriasis patients and the decrease of calprotectin predicts better response to tumor necrosis factor inhibitors. Eur Rev Med Pharmacol Sci 2019; 22:4299-4309. [PMID: 30024620 DOI: 10.26355/eurrev_201807_15426] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE This study aimed to investigate the correlation of serum calprotectin expression with risk and severity of psoriasis, as well as its predictive value for clinical response to tumor necrosis factor inhibitors (TNFi) treatment in psoriasis patients. PATIENTS AND METHODS 72 psoriasis patients and 70 health controls (HCs) were enrolled. Blood samples were collected, and serum calprotectin was determined by commercial enzyme-linked immuno sorbent assay (ELISA). All patients were treated by TNFi treatment, and followed up at 6 months, and the last follow-up date was 2016/11. RESULTS Calprotectin level was elevated in psoriasis patients compared to HCs (p < 0.001), and it disclosed a good diagnostic value of psoriasis with area under curve (AUC) 0.872, 95% CI: 0.810-0.935. Calprotectin expression was positively associated with Psoriasis Area and Severity Index (PASI) score (R = 0.452, p < 0.001), while it was not associated with BSA (R = 0.125, p = 0.297). 58.3% patients achieved PASI75 and 43.1% patients achieved PASI90 at M6. Calprotectin was decreased during the 6-month treatment (p < 0.001). Changes of calprotectin during the first month (∆calprotectin (M0-M1)) in PASI75 group were more than that of non-PASI75 group (p < 0.001). Also, multivariate logistic analysis revealed that ∆calprotectin (M0-M1) (p = 0.001) was an independent factor for PASI75 achievement at M6 after TNFi treatment, while pre-systemic biologic treatment (p = 0.001) was an independent factor for non-PASI75 achievement. CONCLUSIONS Serum calprotectin expression is correlated with risk and severity of psoriasis, and the decrease of calprotectin during the first month could predict better clinical response to TNFi treatment in psoriasis patients.
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Affiliation(s)
- M Qian
- Department of Dermatology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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26
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Zhao FY, Li Q, Zhang DM, Guo ZH, Wu YX, Wang F, Zhang JM, Qian M, Zhu ZY. A novel silent
RHCE
allele in Chinese population. Transfus Med 2019; 29:430-433. [DOI: 10.1111/tme.12624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 06/20/2019] [Accepted: 07/18/2019] [Indexed: 12/26/2022]
Affiliation(s)
- F. Y. Zhao
- School of Life ScienceEast China Normal University Minhang Shanghai PR China
- Shanghai Blood Center Changning Shanghai PR China
| | - Q. Li
- Shanghai Blood Center Changning Shanghai PR China
| | - D. M. Zhang
- Blood Group Reference Laboratory, Taiyuan Red Cross Blood Center Taiyuan PR China
| | - Z. H. Guo
- Shanghai Blood Center Changning Shanghai PR China
| | - Y. X. Wu
- Blood Group Reference Laboratory, Taiyuan Red Cross Blood Center Taiyuan PR China
| | - F. Wang
- Blood Group Reference Laboratory, Taiyuan Red Cross Blood Center Taiyuan PR China
| | - J. M. Zhang
- Shanghai Blood Center Changning Shanghai PR China
| | - M. Qian
- School of Life ScienceEast China Normal University Minhang Shanghai PR China
| | - Z. Y. Zhu
- Shanghai Blood Center Changning Shanghai PR China
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27
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Wang L, Xu X, Jiang C, Ma G, Huang Y, Zhang H, Lai Y, Wang M, Ahmed T, Lin R, Guo W, Luo Z, Li W, Zhang M, Ward C, Qian M, Liu B, Esteban MA, Qin B. mTORC1-PGC1 axis regulates mitochondrial remodeling during reprogramming. FEBS J 2019; 287:108-121. [PMID: 31361392 DOI: 10.1111/febs.15024] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 06/21/2019] [Accepted: 06/27/2019] [Indexed: 02/06/2023]
Abstract
Metabolic reprogramming, hallmarked by enhanced glycolysis and reduced mitochondrial activity, is a key event in the early phase of somatic cell reprogramming. Although extensive work has been conducted to identify the mechanisms of mitochondrial remodeling in reprogramming, many questions remain. In this regard, different laboratories have proposed a role in this process for either canonical (ATG5-dependent) autophagy-mediated mitochondrial degradation (mitophagy), noncanonical (ULK1-dependent, ATG5-independent) mitophagy, mitochondrial fission or reduced biogenesis due to mTORC1 suppression. Clarifying these discrepancies is important for providing a comprehensive picture of metabolic changes in reprogramming. Yet, the comparison among these studies is difficult because they use different reprogramming conditions and mitophagy detection/quantification methods. Here, we have systematically explored mitochondrial remodeling in reprogramming using different culture media and reprogramming factor cocktails, together with appropriate quantification methods and thorough statistical analysis. Our experiments show lack of evidence for mitophagy in mitochondrial remodeling in reprogramming, and further confirm that the suppression of the mTORC1-PGC1 pathway drives this process. Our work helps to clarify the complex interplay between metabolic changes and nutrient sensing pathways in reprogramming, which may also shed light on other contexts such as development, aging and cancer.
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Affiliation(s)
- Lulu Wang
- Key Laboratory of Regenerative Biology and Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Laboratory of Metabolism and Cell Fate, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Joint School of Life Sciences, GIBH and Guangzhou Medical University, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory (GRMH-GDL), China.,University of Chinese Academy of Sciences, Beijing, China
| | - Xueting Xu
- Key Laboratory of Regenerative Biology and Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Laboratory of Metabolism and Cell Fate, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Joint School of Life Sciences, GIBH and Guangzhou Medical University, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory (GRMH-GDL), China.,School of Life Sciences, University of Science and Technology of China, Hefei, China
| | - Che Jiang
- Key Laboratory of Regenerative Biology and Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Laboratory of Metabolism and Cell Fate, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Joint School of Life Sciences, GIBH and Guangzhou Medical University, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory (GRMH-GDL), China.,University of Chinese Academy of Sciences, Beijing, China
| | - Gang Ma
- Key Laboratory of Regenerative Biology and Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Laboratory of Metabolism and Cell Fate, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Joint School of Life Sciences, GIBH and Guangzhou Medical University, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory (GRMH-GDL), China
| | - Yinghua Huang
- Key Laboratory of Regenerative Biology and Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Laboratory of Metabolism and Cell Fate, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Joint School of Life Sciences, GIBH and Guangzhou Medical University, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory (GRMH-GDL), China
| | - Hui Zhang
- Key Laboratory of Regenerative Biology and Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Laboratory of Metabolism and Cell Fate, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Joint School of Life Sciences, GIBH and Guangzhou Medical University, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory (GRMH-GDL), China
| | - Yiwei Lai
- Key Laboratory of Regenerative Biology and Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Joint School of Life Sciences, GIBH and Guangzhou Medical University, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory (GRMH-GDL), China.,University of Chinese Academy of Sciences, Beijing, China.,Laboratory of RNA, Chromatin, and Human Disease, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China
| | - Ming Wang
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, Shenzhen University Health Science Center, China
| | - Tanveer Ahmed
- Key Laboratory of Regenerative Biology and Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Laboratory of Metabolism and Cell Fate, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Joint School of Life Sciences, GIBH and Guangzhou Medical University, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory (GRMH-GDL), China.,Department of Biochemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Runxia Lin
- Key Laboratory of Regenerative Biology and Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Laboratory of Metabolism and Cell Fate, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Joint School of Life Sciences, GIBH and Guangzhou Medical University, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory (GRMH-GDL), China.,University of Chinese Academy of Sciences, Beijing, China
| | - Wenjing Guo
- Scientific Instruments Center, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China
| | - Zhiwei Luo
- Key Laboratory of Regenerative Biology and Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Joint School of Life Sciences, GIBH and Guangzhou Medical University, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory (GRMH-GDL), China.,Laboratory of RNA, Chromatin, and Human Disease, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Guangzhou Medical University, China
| | - Wenjuan Li
- Key Laboratory of Regenerative Biology and Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Joint School of Life Sciences, GIBH and Guangzhou Medical University, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory (GRMH-GDL), China.,Laboratory of RNA, Chromatin, and Human Disease, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Guangzhou Medical University, China
| | - Meng Zhang
- Key Laboratory of Regenerative Biology and Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Joint School of Life Sciences, GIBH and Guangzhou Medical University, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory (GRMH-GDL), China.,University of Chinese Academy of Sciences, Beijing, China.,Laboratory of RNA, Chromatin, and Human Disease, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China
| | - Carl Ward
- Key Laboratory of Regenerative Biology and Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Joint School of Life Sciences, GIBH and Guangzhou Medical University, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory (GRMH-GDL), China.,Laboratory of RNA, Chromatin, and Human Disease, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China
| | - Minxian Qian
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, Shenzhen University Health Science Center, China
| | - Baohua Liu
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Department of Biochemistry & Molecular Biology, Shenzhen University Health Science Center, China
| | - Miguel A Esteban
- Key Laboratory of Regenerative Biology and Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Joint School of Life Sciences, GIBH and Guangzhou Medical University, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory (GRMH-GDL), China.,Laboratory of RNA, Chromatin, and Human Disease, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Institute for Stem Cells and Regeneration, Chinese Academy of Sciences, Beijing, China
| | - Baoming Qin
- Key Laboratory of Regenerative Biology and Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Laboratory of Metabolism and Cell Fate, Guangzhou Institutes of Biomedicine and Health (GIBH), Chinese Academy of Sciences (CAS), Guangzhou, China.,Joint School of Life Sciences, GIBH and Guangzhou Medical University, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory (GRMH-GDL), China
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Abstract
The aging population represents a significant worldwide socioeconomic challenge. Aging is an inevitable and multifactorial biological process and primary risk factor for most age-related diseases, such as cardiovascular diseases, cancers, type 2 diabetes mellitus (T2DM), and neurodegenerative diseases. Pharmacological interventions targeting aging appear to be a more effective approach in preventing age-related disorders compared with the treatments targeted to specific disease. In this chapter, we focus on the latest findings on molecular compounds that mimic caloric restriction (CR), supplement nicotinamide adenine dinucleotide (NAD+) levels, and eliminate senescent cells, including metformin, resveratrol, spermidine, rapamycin, NAD+ boosters, as well as senolytics. All these interventions modulate the determinants and pathways responsible for aging/longevity, such as the kinase target of rapamycin (TOR), AMP-activated protein kinase (AMPK), sirtuins, and insulin-like growth factor (IGF-1) signaling (Fig. 15.1).
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Affiliation(s)
- Minxian Qian
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Medical Research Center, Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, China
| | - Baohua Liu
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Medical Research Center, Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, China.
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29
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Abstract
Statistical data have consistently shown that implant loosening is a significant causative factor for revision surgeries. Both in vivo and in vitro studies have confirmed the positive influences of microgrooved titanium implant surfaces on improving orthopedic titanium implants compared with a smooth titanium surface. Complete cell-groove adhesion is a prerequisite for rapid and robust osseointegration. For the first time, this work has quantified the influence of the titanium groove width at the subcellular scale (5-20 μm) on osteoblast responses, using titanium-coated microgrooved silicon wafer specimens (surface roughness, Ra = ∼1.5 nm), which can avoid the latent influence of variations in surface roughness from the use of normal titanium substrates. The cell-groove adhesion increased from 53.07% to 98.55% with an increasing groove width from 5 to 20 μm. In addition, both the cell spreading area and cell width were proportional to groove width. However, no statistically significant influence (p > 0.05) of groove width was identified on cell proliferation and differentiation. An exponential model was proposed to predict the groove geometries that can facilitate complete cell-groove adhesion. The underlying mechanisms were discussed. The experimental findings of this study provide a unique basis for the design of titanium implant surfaces.
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Affiliation(s)
- N Gui
- Centre for Additive Manufacturing, School of Engineering, RMIT University, Melbourne, Victoria 3000, Australia
| | - W Xu
- Centre for Additive Manufacturing, School of Engineering, RMIT University, Melbourne, Victoria 3000, Australia.,School of Engineering, Deakin University, Waurn Ponds, Victoria 3216, Australia
| | - A N Abraham
- Ian Potter NanoBioSensing Facility, Nanobiotechnology Research Laboratory, School of Science, RMIT University, Melbourne, Victoria 3000, Australia
| | - R Shukla
- Ian Potter NanoBioSensing Facility, Nanobiotechnology Research Laboratory, School of Science, RMIT University, Melbourne, Victoria 3000, Australia
| | - M Qian
- Centre for Additive Manufacturing, School of Engineering, RMIT University, Melbourne, Victoria 3000, Australia
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30
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Jiang F, Zeng YQ, Qian M, Cai S, Chen Y, Chen P. [Prevalence and quality of spirometry and the impact of spirometry training in Hunan, People's Republic of China]. Zhonghua Yi Xue Za Zhi 2019; 99:1385-1389. [PMID: 31137125 DOI: 10.3760/cma.j.issn.0376-2491.2019.18.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore quality of spirometry in Hunan province and the impact of education on it. Methods: Cross-sectional study and a prospective randomized cohort study. (1) A total of 460 public hospitals in Hunan province were investigated. Research assistants collected 20 consecutive reports of pulmonary ventilation test reports (PVTRs) and basal information of those hospitals which owned spirometry. (2) To measure the effect of education, 28 randomly selected 2(nd) level hospitals which owned spirometry were randomized to intervention and control group (1∶1). The intervention group received a short-time training which included face-to-face lectures and a hand-by-hand operation training course, while the control group received usual care. PVTRs were investigated 3 months after the intervention. All PVTRs were classified to grade A, B, C, D and E according to the Chinese pulmonary ventilation test (PVT) guidelines. Results: The recovery rate was 100%. The spirometry-equipped ratio was 1.6% (2/129) at 1(st) level hospitals, 39.0% (105/269) at 2(nd) level hospitals, 100% (62/62) at 3(rd) level hospitals in Hunan province. There were 100% (2/2), 91.4% (96/105) and 93.5% (58/62) utilization rate at 1(st), 2(nd) and 3(rd) level hospitals. Common reasons for not owning a spirometer were equipment cost and insufficient insurance. Lack of knowledge about spirometry and inadequate benefits were the top two reasons for low utilization rate. There were 3 120 PVTRs from 156 hospitals which used spirometry, a total of 50.4% (1 574/3 120) PVTRs got grade A, a total of 14.8% (462/3 120) PVTRs were judged as unreliable (grade D, E). There were 560 PVTRs and 28 questionnaires, respectively, before and after intervention. The technicians' knowledge improved after education compared to before (9.8±0.6 vs 8.6±1.1) (P<0.05). And 75.0% (210/280) PVTRs got A grade in the intervention group, which was significantly higher than those in the control group (75.0% vs 37.9%, P<0.05). While none of PVTRs was unreliable, which was lower than that in the control group (0 vs 14.6%, P<0.05). Conclusions: The equipment ratio and the utilization rate of spirometry are still low and imbalanced among three levels hospitals in Hunan. The short-time training is helpful to improve quality of spirometry.
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Affiliation(s)
- F Jiang
- Department of Respiratory Medicine, the Second Xiangya Hospital of Central South University, Changsha 410000, China
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31
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Ao Y, Zhang J, Liu Z, Qian M, Li Y, Wu Z, Sun P, Wu J, Bei W, Wen J, Wu X, Li F, Zhou Z, Zhu WG, Liu B, Wang Z. Lamin A buffers CK2 kinase activity to modulate aging in a progeria mouse model. Sci Adv 2019; 5:eaav5078. [PMID: 30906869 PMCID: PMC6426468 DOI: 10.1126/sciadv.aav5078] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 01/31/2019] [Indexed: 05/15/2023]
Abstract
Defective nuclear lamina protein lamin A is associated with premature aging. Casein kinase 2 (CK2) binds the nuclear lamina, and inhibiting CK2 activity induces cellular senescence in cancer cells. Thus, it is feasible that lamin A and CK2 may cooperate in the aging process. Nuclear CK2 localization relies on lamin A and the lamin A carboxyl terminus physically interacts with the CK2α catalytic core and inhibits its kinase activity. Loss of lamin A in Lmna-knockout mouse embryonic fibroblasts (MEFs) confers increased CK2 activity. Conversely, prelamin A that accumulates in Zmpste24-deficent MEFs exhibits a high CK2α binding affinity and concomitantly reduces CK2 kinase activity. Permidine treatment activates CK2 by releasing the interaction between lamin A and CK2, promoting DNA damage repair and ameliorating progeroid features. These data reveal a previously unidentified function for nuclear lamin A and highlight an essential role for CK2 in regulating senescence and aging.
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Affiliation(s)
- Ying Ao
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Carson International Cancer Center, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Health Science Center, Shenzhen 518060, China
- Department of Genetics, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, Hubei, China
| | - Jie Zhang
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Carson International Cancer Center, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Health Science Center, Shenzhen 518060, China
| | - Zuojun Liu
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Carson International Cancer Center, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Health Science Center, Shenzhen 518060, China
| | - Minxian Qian
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Carson International Cancer Center, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Health Science Center, Shenzhen 518060, China
| | - Yao Li
- School of Public Health, Shenzhen University Health Science Center, Shenzhen 518060, China
| | - Zhuping Wu
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Carson International Cancer Center, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Health Science Center, Shenzhen 518060, China
| | - Pengfei Sun
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Carson International Cancer Center, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Health Science Center, Shenzhen 518060, China
| | - Jie Wu
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Carson International Cancer Center, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Health Science Center, Shenzhen 518060, China
| | - Weixin Bei
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Carson International Cancer Center, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Health Science Center, Shenzhen 518060, China
| | - Junqu Wen
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Carson International Cancer Center, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Health Science Center, Shenzhen 518060, China
| | - Xuli Wu
- School of Public Health, Shenzhen University Health Science Center, Shenzhen 518060, China
| | - Feng Li
- Department of Genetics, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, Hubei, China
| | - Zhongjun Zhou
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 21 Sassoon Road, Hong Kong
| | - Wei-Guo Zhu
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Carson International Cancer Center, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Health Science Center, Shenzhen 518060, China
| | - Baohua Liu
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Carson International Cancer Center, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Health Science Center, Shenzhen 518060, China
- Corresponding author. (Z.W.); (B.L.)
| | - Zimei Wang
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Carson International Cancer Center, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Health Science Center, Shenzhen 518060, China
- Corresponding author. (Z.W.); (B.L.)
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33
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Xu W, Lu X, Wang L, Shi Z, Lv S, Qian M, Qu X. Mechanical properties, in vitro corrosion resistance and biocompatibility of metal injection molded Ti-12Mo alloy for dental applications. J Mech Behav Biomed Mater 2018; 88:534-547. [DOI: 10.1016/j.jmbbm.2018.08.038] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Revised: 06/11/2018] [Accepted: 08/27/2018] [Indexed: 11/16/2022]
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34
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Lotan E, Morley C, Newman J, Qian M, Abu-Amara D, Marmar C, Lui YW. Prevalence of Cerebral Microhemorrhage following Chronic Blast-Related Mild Traumatic Brain Injury in Military Service Members Using Susceptibility-Weighted MRI. AJNR Am J Neuroradiol 2018; 39:1222-1225. [PMID: 29794235 PMCID: PMC7655437 DOI: 10.3174/ajnr.a5688] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Accepted: 04/04/2018] [Indexed: 01/14/2023]
Abstract
BACKGROUND AND PURPOSE Cerebral microhemorrhages are a known marker of mild traumatic brain injury. Blast-related mild traumatic brain injury relates to a propagating pressure wave, and there is evidence that the mechanism of injury in blast-related mild traumatic brain injury may be different from that in blunt head trauma. Two recent reports in mixed cohorts of blunt and blast-related traumatic brain injury in military personnel suggest that the prevalence of cerebral microhemorrhages is lower than in civilian head injury. In this study, we aimed to characterize the prevalence of cerebral microhemorrhages in military service members specifically with chronic blast-related mild traumatic brain injury. MATERIALS AND METHODS Participants were prospectively recruited and underwent 3T MR imaging. Susceptibility-weighted images were assessed by 2 neuroradiologists independently for the presence of cerebral microhemorrhages. RESULTS Our cohort included 146 veterans (132 men) who experienced remote blast-related mild traumatic brain injury (mean, 9.4 years; median, 9 years after injury). Twenty-one (14.4%) reported loss of consciousness for <30 minutes. Seventy-seven subjects (52.7%) had 1 episode of blast-related mild traumatic brain injury; 41 (28.1%) had 2 episodes; and 28 (19.2%) had >2 episodes. No cerebral microhemorrhages were identified in any subject, as opposed to the frequency of SWI-detectable cerebral microhemorrhages following blunt-related mild traumatic brain injury in the civilian population, which has been reported to be as high as 28% in the acute and subacute stages. CONCLUSIONS Our results may reflect differences in pathophysiology and the mechanism of injury between blast- and blunt-related mild traumatic brain injury. Additionally, the chronicity of injury may play a role in the detection of cerebral microhemorrhages.
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Affiliation(s)
- E Lotan
- From the Departments of Radiology (E.L., C.M., Y.W.L.)
- Sackler Faculty of Medicine (E.L.), Tel Aviv University, Tel Aviv, Israel
| | - C Morley
- From the Departments of Radiology (E.L., C.M., Y.W.L.)
- Psychiatry (J.N., M.Q., D.A.-A., C.M.), Steven and Alexandra Cohen Veterans Center for Posttraumatic Stress and Traumatic Brain Injury, New York University Langone Medical Center, New York, New York
| | - J Newman
- Psychiatry (J.N., M.Q., D.A.-A., C.M.), Steven and Alexandra Cohen Veterans Center for Posttraumatic Stress and Traumatic Brain Injury, New York University Langone Medical Center, New York, New York
| | - M Qian
- Psychiatry (J.N., M.Q., D.A.-A., C.M.), Steven and Alexandra Cohen Veterans Center for Posttraumatic Stress and Traumatic Brain Injury, New York University Langone Medical Center, New York, New York
| | - D Abu-Amara
- Psychiatry (J.N., M.Q., D.A.-A., C.M.), Steven and Alexandra Cohen Veterans Center for Posttraumatic Stress and Traumatic Brain Injury, New York University Langone Medical Center, New York, New York
| | - C Marmar
- From the Departments of Radiology (E.L., C.M., Y.W.L.)
| | - Y W Lui
- From the Departments of Radiology (E.L., C.M., Y.W.L.)
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Qian M, Liu Z, Peng L, Tang X, Meng F, Ao Y, Zhou M, Wang M, Cao X, Qin B, Wang Z, Zhou Z, Wang G, Gao Z, Xu J, Liu B. Boosting ATM activity alleviates aging and extends lifespan in a mouse model of progeria. eLife 2018; 7:34836. [PMID: 29717979 PMCID: PMC5957528 DOI: 10.7554/elife.34836] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 04/16/2018] [Indexed: 02/06/2023] Open
Abstract
DNA damage accumulates with age (Lombard et al., 2005). However, whether and how robust DNA repair machinery promotes longevity is elusive. Here, we demonstrate that ATM-centered DNA damage response (DDR) progressively declines with senescence and age, while low dose of chloroquine (CQ) activates ATM, promotes DNA damage clearance, rescues age-related metabolic shift, and prolongs replicative lifespan. Molecularly, ATM phosphorylates SIRT6 deacetylase and thus prevents MDM2-mediated ubiquitination and proteasomal degradation. Extra copies of Sirt6 extend lifespan in Atm-/- mice, with restored metabolic homeostasis. Moreover, the treatment with CQ remarkably extends lifespan of Caenorhabditis elegans, but not the ATM-1 mutants. In a progeria mouse model with low DNA repair capacity, long-term administration of CQ ameliorates premature aging features and extends lifespan. Thus, our data highlights a pro-longevity role of ATM, for the first time establishing direct causal links between robust DNA repair machinery and longevity, and providing therapeutic strategy for progeria and age-related metabolic diseases. As cells live and divide, their genetic material gets damaged. The DNA damage response is a network of proteins that monitor, recognize and fix the damage, which is also called DNA lesions. For example, an enzyme called ATM senses when DNA is broken and then begins a process that will get it repaired, while another enzyme known as SIRT6 participates in the actual mending process. When organisms get older, the repair machinery becomes less efficient, and the number of DNA lesions and errors increases. The accumulation of DNA damage may cause the ‘symptoms’ of old age – from cancer, to wrinkles and the slowing down of the body’s chemical processes. In fact, individuals with defective ATMs (who thus struggle to repair their DNA) age abnormally fast; conversely, SIRT6 promotes longevity. If declining repair mechanisms cause aging, would boosting the DNA damage response slow down this process? Chloroquine is a drug used to combat malaria, but it can also enhance the activity of ATM without damaging DNA. Qian, Liu et al. show that chloroquine helps cells remove broken DNA and keep dividing for longer. In animals, the drug increases the lifespan of worms and prolongs the lives of mice who have mutations that make them age quicker. Qian, Liu et al. also demonstrate that ATM works by chemically altering the pro-longevity enzyme SIRT6. These changes make SIRT6 more stable, and keep it safe from cellular processes that destroy it. In addition, mice that are genetically engineered to lack ATM can survive for longer if they also produce extra SIRT6. These experiments show that enhancing the DNA damage response can slow down aging, thus linking the DNA repair machinery to longevity. Progeria is a group of rare genetic conditions with inefficient DNA repair; people with progeria age fast and die young. The results by Qian, Liu et al., if confirmed in humans, could provide a new way of treating these diseases.
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Affiliation(s)
- Minxian Qian
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China.,Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China.,Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, China
| | - Zuojun Liu
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China.,Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China.,Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, China
| | - Linyuan Peng
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China.,Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China.,Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, China
| | - Xiaolong Tang
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China.,Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China.,Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, China
| | - Fanbiao Meng
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China.,Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China.,Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, China
| | - Ying Ao
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China.,Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, China
| | - Mingyan Zhou
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China.,Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China.,Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, China
| | - Ming Wang
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China.,Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China.,South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Xinyue Cao
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China.,Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China.,Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, China
| | - Baoming Qin
- South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Zimei Wang
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China.,Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, China
| | - Zhongjun Zhou
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Guangming Wang
- East Hospital, Tongji University School of Medicine, Shanghai, China.,Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Zhengliang Gao
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.,Advanced Institute of Translational Medicine, Tongji University, Shanghai, China
| | - Jun Xu
- East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Baohua Liu
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Shenzhen University Health Science Center, Shenzhen, China.,Medical Research Center, Shenzhen University Health Science Center, Shenzhen, China.,Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, China
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Ye X, Qian M, Lu L. Clinical characteristics, psychological effects, quality of life, and coping strategies in Chinese patients with Mayer-Rokitansky-Kuster-Hauser syndrome. CLIN EXP OBSTET GYN 2018. [DOI: 10.12891/ceog3717.2018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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37
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Hu X, Hsueh PYS, Chen CH, Diaz KM, Parsons FE, Ensari I, Qian M, Cheung YKK. An interpretable health behavioral intervention policy for mobile device users. IBM J Res Dev 2018; 62:4. [PMID: 29875505 PMCID: PMC5985829 DOI: 10.1147/jrd.2017.2769320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
An increasing number of people use mobile devices to monitor their behavior, such as exercise, and record their health status, such as psychological stress. However, these devices rarely provide ongoing support to help users understand how their behavior contributes to changes in their health status. To address this challenge, we aim to develop an interpretable policy for physical activity recommendations that reduce a user's perceived psychological stress, over a given time horizon. We formulate this problem as a sequential decision-making problem and solve it using a new method that we refer to as threshold Q-learning (TQL). The advantage of the TQL method over traditional Q-learning is that it is "doubly robust" and interpretable. This interpretability is achieved by making model assumptions and incorporating threshold selection into the learning process. Our simulation results indicate that the TQL method performs better than the Q-learning method given model misspecification. Our analyses are performed on data collected from 79 healthy adults over a 7 week period, where the data comprise physical activity patterns collected from mobile devices and self-assessed stress levels of the users. This work serves as a first step toward a computational health coaching solution for mobile device users.
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38
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Gui N, Xu W, Myers DE, Shukla R, Tang HP, Qian M. The effect of ordered and partially ordered surface topography on bone cell responses: a review. Biomater Sci 2018; 6:250-264. [DOI: 10.1039/c7bm01016h] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Current understanding of the role of ordered and partially ordered surface topography in bone cell responses for bone implant design.
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Affiliation(s)
- N. Gui
- Centre for Additive Manufacturing
- School of Engineering
- RMIT University
- Melbourne
- Australia
| | - W. Xu
- Department of Engineering
- Macquarie University
- Sydney
- Australia
| | - D. E. Myers
- Australian Institute for Musculoskeletal Science
- Victoria University and University of Melbourne
- Australia
- College of Health and Biomedicine
- Victoria University
| | - R. Shukla
- Nanobiotechnology Research Laboratory and Centre for Advanced Materials & Industrial Chemistry
- School of Science
- RMIT University
- Melbourne
- Australia
| | - H. P. Tang
- State Key Laboratory of Porous Metal Materials
- Northwest Institute for Nonferrous Metal Research
- and Xi'an Sailong Metal Materials Co. Ltd
- Xi'an 710016
- China
| | - M. Qian
- Centre for Additive Manufacturing
- School of Engineering
- RMIT University
- Melbourne
- Australia
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39
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Dehghan-Manshadi A, Bermingham MJ, Dargusch M, StJohn D, Qian M. Metal injection moulding of titanium and titanium alloys: Challenges and recent development. POWDER TECHNOL 2017. [DOI: 10.1016/j.powtec.2017.06.053] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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40
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Wang G, Wang Q, Easton MA, Dargusch MS, Qian M, Eskin DG, StJohn DH. Role of ultrasonic treatment, inoculation and solute in the grain refinement of commercial purity aluminium. Sci Rep 2017; 7:9729. [PMID: 28852149 PMCID: PMC5575269 DOI: 10.1038/s41598-017-10354-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 08/01/2017] [Indexed: 11/17/2022] Open
Abstract
The present study investigates the influence of ultrasonic treatment on the grain refinement of commercial purity aluminium with a range of Al3Ti1B master alloy additions. When the aluminium contains the smallest amount of added master alloy, ultrasonics caused significant additional grain refinement compared to that provided by the master alloy alone. However, the influence of ultrasonics on grain size reduces with increasing addition of the master alloy which adds additional TiB2 particles and Ti solute with each incremental addition. Applying the Interdependence model to analyse the experimentally measured grain sizes revealed that the results of this study and those from similar experiments on an Al-2Cu alloy were consistent when the alloy compositions are converted to their growth restriction factors (Q) and that increasing Q had a major effect on reducing grain size and increasing grain number density. Compared with the application of ultrasonic treatment where an order of magnitude increase in the grain number density is achieved, an increase in the Ti content over the range of master alloy additions, causes the grain number density to increase by approximately three times.
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Affiliation(s)
- G Wang
- Centre of Advanced Materials Processing and Manufacturing (AMPAM), The University of Queensland, St Lucia, QLD, 4072, Australia. .,Defence Materials Technology Centre (DMTC), The University of Queensland, St Lucia, QLD 4072, Australia.
| | - Q Wang
- Centre of Advanced Materials Processing and Manufacturing (AMPAM), The University of Queensland, St Lucia, QLD, 4072, Australia
| | - M A Easton
- Centre for Additive Manufacturing, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
| | - M S Dargusch
- Centre of Advanced Materials Processing and Manufacturing (AMPAM), The University of Queensland, St Lucia, QLD, 4072, Australia.,Defence Materials Technology Centre (DMTC), The University of Queensland, St Lucia, QLD 4072, Australia
| | - M Qian
- Centre for Additive Manufacturing, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
| | - D G Eskin
- BCAST, Brunel University, London, Uxbridge, UB8 3PH, United Kingdom.,Tomsk State University, 634050, Tomsk, Russian Federation
| | - D H StJohn
- Centre of Advanced Materials Processing and Manufacturing (AMPAM), The University of Queensland, St Lucia, QLD, 4072, Australia.,Defence Materials Technology Centre (DMTC), The University of Queensland, St Lucia, QLD 4072, Australia
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41
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Tang X, Shi L, Xie N, Liu Z, Qian M, Meng F, Xu Q, Zhou M, Cao X, Zhu WG, Liu B. SIRT7 antagonizes TGF-β signaling and inhibits breast cancer metastasis. Nat Commun 2017; 8:318. [PMID: 28827661 PMCID: PMC5566498 DOI: 10.1038/s41467-017-00396-9] [Citation(s) in RCA: 137] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 06/27/2017] [Indexed: 12/15/2022] Open
Abstract
Distant metastasis is the main cause of breast cancer-related death; however, effective therapeutic strategies targeting metastasis are still scarce. This is largely attributable to the spatiotemporal intratumor heterogeneity during metastasis. Here we show that protein deacetylase SIRT7 is significantly downregulated in breast cancer lung metastases in human and mice, and predicts metastasis-free survival. SIRT7 deficiency promotes breast cancer cell metastasis, while temporal expression of Sirt7 inhibits metastasis in polyomavirus middle T antigen breast cancer model. Mechanistically, SIRT7 deacetylates and promotes SMAD4 degradation mediated by β-TrCP1, and SIRT7 deficiency activates transforming growth factor-β signaling and enhances epithelial-to-mesenchymal transition. Significantly, resveratrol activates SIRT7 deacetylase activity, inhibits breast cancer lung metastases, and increases survival. Our data highlight SIRT7 as a modulator of transforming growth factor-β signaling and suppressor of breast cancer metastasis, meanwhile providing an effective anti-metastatic therapeutic strategy.Metastatic disease is the major reason for breast cancer-related deaths; therefore, a better understanding of this process and its players is needed. Here the authors report the role of SIRT7 in inhibiting SMAD4-mediated breast cancer metastasis providing a possible therapeutic avenue.
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Affiliation(s)
- Xiaolong Tang
- Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, 518060, China
- Center for Anti-aging and Regenerative Medicine, Shenzhen University Health Science Center, Shenzhen, 518060, China
| | - Lei Shi
- Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, 518060, China
- Center for Anti-aging and Regenerative Medicine, Shenzhen University Health Science Center, Shenzhen, 518060, China
| | - Ni Xie
- Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen, 518035, China
| | - Zuojun Liu
- Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, 518060, China
- Center for Anti-aging and Regenerative Medicine, Shenzhen University Health Science Center, Shenzhen, 518060, China
| | - Minxian Qian
- Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, 518060, China
- Center for Anti-aging and Regenerative Medicine, Shenzhen University Health Science Center, Shenzhen, 518060, China
| | - Fanbiao Meng
- Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, 518060, China
- Center for Anti-aging and Regenerative Medicine, Shenzhen University Health Science Center, Shenzhen, 518060, China
| | - Qingyang Xu
- Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, 518060, China
- Center for Anti-aging and Regenerative Medicine, Shenzhen University Health Science Center, Shenzhen, 518060, China
| | - Mingyan Zhou
- Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, 518060, China
- Center for Anti-aging and Regenerative Medicine, Shenzhen University Health Science Center, Shenzhen, 518060, China
| | - Xinyue Cao
- Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, 518060, China
- Center for Anti-aging and Regenerative Medicine, Shenzhen University Health Science Center, Shenzhen, 518060, China
| | - Wei-Guo Zhu
- Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, 518060, China
| | - Baohua Liu
- Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, 518060, China.
- Center for Anti-aging and Regenerative Medicine, Shenzhen University Health Science Center, Shenzhen, 518060, China.
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42
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Cheng L, Wang S, Che YH, Qian M. Study of three types of desensitizers in dentin bonding strength. J BIOL REG HOMEOS AG 2017; 31:557-565. [PMID: 28952286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
One hundred and twenty human molars without decay (premolars and complete third molars) freshly extracted for orthodontic purposes were used in the study to explore the impact of application of three kinds of desensitizers on self-etching/all-etching bond strength of dentin. The roots were ground along the cementoenamel junction (CEJ), the residual crowns were divided into two parts along mesial and distal direction, and the enamel layer was removed. The dentin was ground into standard pieces of 3x3x3 mm and then polished using alumina waterproof abrasive paper. Two hundred and forty specimens were divided into two groups according to self-etching bond (OptiBond, iBond, XenoIV) and all-etching bond (OptiBond, iBond, Probond). Each of the two groups were subdivided into three groups with different brands, and then further subdivided into three experimental groups and a control group (10 samples in each final group). The surface of dentin coated with desensitizer was examined using scanning electron microscope. Results showed that only the shear strength of iBond + Ddes + Z100 resin group was lower compared to the control group (P < 0.05). The comparison of the resin shear strength in other experimental groups with the control groups demonstrated no statistically significant difference (P > 0.05). The shear strength of Optibond + Gluma, Optibond + Ddes, iBond + Ddes + Z100 resin group in all-etching bond group and the experimental groups in Probond group was lower than in the control group (P < 0.05). The resin shear strength in other groups did not differ from the controls (P > 0.05).
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Affiliation(s)
- L Cheng
- Department of Prosthodontics, School of Stomatology Hospital of Jilin University, Changchun, Jilin, China
| | - S Wang
- Department of Oral Geriatrics, School of Stomatology Hospital of Jilin University, Changchun, Jilin, China
| | - Y H Che
- Department of Science and Education, School of Stomatology Hospital of Jilin University, Changchun, Jilin, China
| | - M Qian
- Department of Prosthodontics, School of Stomatology Hospital of Jilin University, Changchun, Jilin, China
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43
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Chen C, Chen Y, Lu Z, Qian M, Xie H, Tay FR. The effects of water on degradation of the zirconia-resin bond. J Dent 2017; 64:23-29. [PMID: 28414171 DOI: 10.1016/j.jdent.2017.04.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 04/07/2017] [Accepted: 04/09/2017] [Indexed: 10/19/2022] Open
Abstract
OBJECTIVES 10-methacryloyloxydecyldihydrogenphosphate (MDP) containing primers improve bonding of yttria-stabilised tetragonal zirconia (Y-TZP) to methacrylate resins. The present study investigated the role played by water in the deterioration of MDP-mediated zirconia-resin bonds. METHODS Grit-blasted Y-TZP plates were conditioned with two MDP primers and bonded with resin for shear bond strength (SBS) testing. Additional bonded plates were aged hydrothermally and compared with unaged Y-TZP after 24h of water-storage or 6 months of water/acid/alkali-storage. The monoclinic phase (m-ZrO2) in different groups was determined by X-ray diffraction. Hydrolytic stability of the coordinate bond between MDP and zirconia in neutral/acid/alkaline environment was analysed using thermodynamic calculations. Microleakage and release of the element phosphorus from MDP-mediated Y-TZP/resin-bonded interfaces were evaluated via methylene blue dye infiltration and inductively coupled plasma-mass spectrometry (ICP-MS). RESULTS Hydrothermal ageing did not significantly alter SBS. Ageing in acidic or neutral medium led to significant decline in SBS. The m-ZrO2 phase increased after hydrothermal ageing but no m-ZrO2 was detected in the water/acid/alkali-aged specimens. A higher equilibrium constant was identified in the MDP-t-ZrO2 complex when compared with the MDP-m-ZrO2 complex. MDP-conditioning failed to prevent infiltration of the methylene blue dye. Phosphorus was detected by ICP-MS from the solutions used for soaking the resin-bonded specimens. CONCLUSIONS Hydrolysis of the coordinate bond between MDP and ZrO2, rather than t→m phase transformation, weakens the bond integrity between MDP-conditioned Y-TZP and methacrylate resin. CLINICAL SIGNIFICANCE Hydrolysis of the coordinate bond between MDP and zirconia is responsible for deterioration of the integrity of the bond between MDP-conditioned Y-TZP and methacrylate resin.
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Affiliation(s)
- C Chen
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Y Chen
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Z Lu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - M Qian
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - H Xie
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China.
| | - F R Tay
- Department of Endodontics, The Dental College of Georgia, Augusta University, Augusta, GA, 30912, USA.
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Cheng L, He X, Che Y, Che H, Qian M. Osteogenesis-promoting activity of composites SBA-15 mesoporous particles carrying oxytocin in vitro and in vivo. J BIOL REG HOMEOS AG 2017; 31:157-162. [PMID: 28337886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This study analyzes the performance of SBA-15 mesoporous particles carrying oxytocin (OT) in promoting osteogenesis in vitro and in vivo. The SBA-15 particles synthesized in the previous studies (about 30 μm in diameter and containing 10 nm deep pores) were loaded with the drug oxytocin and cultured with human osteosarcoma MG-63 cell line in vitro. The influence of particles on cell proliferation was studied. The level of the osteogenic marker (alkaline phosphatase and type I collagen) was measured. For in vivo studies, the connectivity defects of rabbit skull were prepared, and SBA-15 suspensions were regularly injected at the defect sites. The changes in the defect site calcium salt deposition were measured, and morphological changes were observed by microscopy. The material had to promote effect on osteogenesis-related indicators such as alkaline phosphatase and collagen I in bone sarcoma cell line MG-63. In vivo, the calcium salt deposition in OT/SBA-15 group was significantly higher than in the blank group. SBA-15 carriers appeared to persist in the region of the defect after the injection and release the drugs slowly, thus playing a more distinct role in promoting bone repair of local bone defects. The results showed that SBA-15 particles with OT could slow the release drugs and could help in promoting osteogenesis.
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Affiliation(s)
- L Cheng
- Department of Prosthodontics, School of Stomatology, Jilin University, Changchun, China
| | - X He
- Department of Prosthodontics, School of Stomatology, Jilin University, Changchun, China
| | - Y Che
- Department of Science and Education, School of Stomatology, Jilin University, Changchun, China
| | - H Che
- Department of Periodontics, School of Stomatology, Jilin University, Changchun, China
| | - M Qian
- Department of Prosthodontics, School of Stomatology, Jilin University, Changchun, China
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45
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Qian M, Wei L, Hao L, Tang S. Pharmacokinetics of new high-concentration and long-acting praziquantel oily suspensions after intramuscular administration in cattle. J Vet Pharmacol Ther 2016; 40:454-458. [DOI: 10.1111/jvp.12378] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 09/28/2016] [Indexed: 01/13/2023]
Affiliation(s)
- M. Qian
- College of Veterinary Medicine; China Agricultural University; Beijing China
| | - L. Wei
- College of Veterinary Medicine; China Agricultural University; Beijing China
- Beijing Animal Health Inspection; Beijing China
| | - L. Hao
- China Institute of Veterinary Drug Control; Beijing China
| | - S. Tang
- College of Veterinary Medicine; China Agricultural University; Beijing China
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46
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Yifan D, Qun L, Yingshuang H, Xulin L, Jianjun W, Qian M, Yuman Y, Zhaoyang R. Bronchial lavage P 16INK4A gene promoter methylation and lung cancer diagnosis: A meta-analysis. Indian J Cancer 2016; 52 Suppl 2:e96-8. [PMID: 26728683 DOI: 10.4103/0019-509x.172522] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To evaluate the diagnostic value of bronchial lavage P16INK4A promoter methylation and lung cancer. MATERIALS AND METHODS The databases of PubMed, Medline, China National Knowledge Infrastructure, and Wanfang were electronically searched by two reviewers to find the suitable studies related to the association between P16INK4A promoter methylation and lung cancer. The P16INK4A promoter methylation rate was extracted from each included individual study. The diagnostic sensitivity, specificity, and area under the receiver operating characteristic ROC curve of bronchial lavage P16INK4Aas a biomarker for diagnosis of lung cancer were pooled by stata 11.0 software (Stata Corporation, College Station, TX, USA). RESULTS At last, 10 publications were included in this meta-analysis. Of the included 10 studies, five are published in English with relatively high quality and other five papers published in Chinese have relatively low quality. The pooled sensitivity and specificity of bronchial lavage P16INK4A promoter methylation for lung cancer diagnosis were 0.61 (95% confidence interval [CI]: 0.57-0.65) and 0.81 (95% CI: 0.78-0.85), respectively, with random effect model. The ROC curve were calculated and drawn according to Bayes' theorem by stata 11.0 software. The systematic area under the ROC was 0.72 (95% CI: 0.68-0.76), which indicated that the diagnostic value of bronchial lavage P16INK4A promoter methylation for lung cancer was relatively high. Moreover, no significant publication bias was existed in this meta-analysis (t = 0.69, P > 0.05). CONCLUSION Bronchial lavage P16INK4A promoter methylation can be a potential biomarker for diagnosis of lung cancer.
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Affiliation(s)
| | | | | | | | | | | | | | - R Zhaoyang
- Department of Respiratory, The Affiliated Hospital of Hangzhou Normal University, 310015, China
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47
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Usherenko I, Basu Roy U, Mazlish S, Liu S, Benkoscki L, Coutts D, Epstein S, Qian M, Rafiq S, Scott C. Pediatric tuberculosis drug market: an insider perspective on challenges and solutions. Int J Tuberc Lung Dis 2016; 19 Suppl 1:23-31. [PMID: 26564537 DOI: 10.5588/ijtld.15.0479] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Representative stakeholders were consulted on how they felt access to pediatric tuberculosis (TB) drugs could be improved. A key recommendation is the development of new child-friendly, adequately dosed formulations with a good shelf life in all climate zones. There is also an urgent need to improve the diagnosis and reporting of children with TB. Manufacturers of pediatric TB medications are to be incentivized through improved coordination among all stakeholders, with streamlined regulatory approvals and increased consumer education on drug and regimen guidelines. Finally, pooled procurement is advised to ensure sustained market supply against affordable prices.
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Affiliation(s)
- I Usherenko
- The Global Alliance for TB Drug Development, New York, New York
| | - U Basu Roy
- The Solutions Lab, New York University, New York, New York, USA
| | - S Mazlish
- The Solutions Lab, New York University, New York, New York, USA
| | - S Liu
- The Solutions Lab, New York University, New York, New York, USA
| | - L Benkoscki
- The Solutions Lab, New York University, New York, New York, USA
| | - D Coutts
- The Solutions Lab, New York University, New York, New York, USA
| | - S Epstein
- The Solutions Lab, New York University, New York, New York, USA
| | - M Qian
- The Solutions Lab, New York University, New York, New York, USA
| | - S Rafiq
- The Solutions Lab, New York University, New York, New York, USA
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48
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Wang X, Xu S, Zhou S, Xu W, Leary M, Choong P, Qian M, Brandt M, Xie YM. Topological design and additive manufacturing of porous metals for bone scaffolds and orthopaedic implants: A review. Biomaterials 2016; 83:127-41. [PMID: 26773669 DOI: 10.1016/j.biomaterials.2016.01.012] [Citation(s) in RCA: 625] [Impact Index Per Article: 78.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 12/31/2015] [Accepted: 01/01/2016] [Indexed: 02/06/2023]
Abstract
One of the critical issues in orthopaedic regenerative medicine is the design of bone scaffolds and implants that replicate the biomechanical properties of the host bones. Porous metals have found themselves to be suitable candidates for repairing or replacing the damaged bones since their stiffness and porosity can be adjusted on demands. Another advantage of porous metals lies in their open space for the in-growth of bone tissue, hence accelerating the osseointegration process. The fabrication of porous metals has been extensively explored over decades, however only limited controls over the internal architecture can be achieved by the conventional processes. Recent advances in additive manufacturing have provided unprecedented opportunities for producing complex structures to meet the increasing demands for implants with customized mechanical performance. At the same time, topology optimization techniques have been developed to enable the internal architecture of porous metals to be designed to achieve specified mechanical properties at will. Thus implants designed via the topology optimization approach and produced by additive manufacturing are of great interest. This paper reviews the state-of-the-art of topological design and manufacturing processes of various types of porous metals, in particular for titanium alloys, biodegradable metals and shape memory alloys. This review also identifies the limitations of current techniques and addresses the directions for future investigations.
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Affiliation(s)
- Xiaojian Wang
- Centre for Innovative Structures and Materials, School of Engineering, RMIT University, GPO Box 2476, Melbourne 3001, Victoria, Australia
| | - Shanqing Xu
- Centre for Innovative Structures and Materials, School of Engineering, RMIT University, GPO Box 2476, Melbourne 3001, Victoria, Australia
| | - Shiwei Zhou
- Centre for Innovative Structures and Materials, School of Engineering, RMIT University, GPO Box 2476, Melbourne 3001, Victoria, Australia
| | - Wei Xu
- Centre for Additive Manufacturing, School of Engineering, RMIT University, GPO Box 2476, Melbourne 3001, Victoria, Australia
| | - Martin Leary
- Centre for Additive Manufacturing, School of Engineering, RMIT University, GPO Box 2476, Melbourne 3001, Victoria, Australia
| | - Peter Choong
- Department of Surgery, University of Melbourne, St. Vincent's Hospital, Melbourne 3001, Victoria, Australia
| | - M Qian
- Centre for Additive Manufacturing, School of Engineering, RMIT University, GPO Box 2476, Melbourne 3001, Victoria, Australia
| | - Milan Brandt
- Centre for Additive Manufacturing, School of Engineering, RMIT University, GPO Box 2476, Melbourne 3001, Victoria, Australia
| | - Yi Min Xie
- Centre for Innovative Structures and Materials, School of Engineering, RMIT University, GPO Box 2476, Melbourne 3001, Victoria, Australia; Centre for Additive Manufacturing, School of Engineering, RMIT University, GPO Box 2476, Melbourne 3001, Victoria, Australia.
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49
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Qian M, Chen T, Zhou D, Zhang Z, Zhang Q, Tang S, Xiao X. Development of a new benazepril hydrochloride chewable tablet and evaluation of its bioequivalence for treatment of heart failure in dogs. J Vet Pharmacol Ther 2015; 39:98-101. [PMID: 26228576 DOI: 10.1111/jvp.12252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 06/25/2015] [Indexed: 11/27/2022]
Abstract
The aim of the study was to develop a new chewable benazepril hydrochloride(BH) tablet, investigate its physical properties, and evaluate its bioequivalence with the branded formulation (Fortekor). A corrective agent was included in the formula to improve its palatability and convenience for administration to dogs. The tablet remained stable in light, heat, and humidity tests, and its physical properties such as hardness, uniformity of content, and dissolution rate were highly consistent with the technical standards. After single and repeated administrations to eight beagles and single dose to 14 mongrel dogs (0.5 mg/kg p.o.), plasma BH and its active metabolite, benazeprilat (BZ), were detected. There was no significant difference in the major pharmacokinetic parameters (Cmax , Tmax, and AUC₀₋₂₄) between the two formulations. The 90% confidence intervals calculated for the ratios of area under the time-concentration curve (AUC₀₋₂₄) were 92.4-116.3% for BH and 89.9-102.3% for BZ, within the accepted range for bioequivalence of 80-125%. The results showed our new chewable tablet is bioequivalent to the commercial product and suitable for addition to the benazepril product family for the treatment of heart failure in dogs.
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Affiliation(s)
- M Qian
- National Center for Veterinary Drug Safety Evaluation, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - T Chen
- National Center for Veterinary Drug Safety Evaluation, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - D Zhou
- National Center for Veterinary Drug Safety Evaluation, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Z Zhang
- National Center for Veterinary Drug Safety Evaluation, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Q Zhang
- National Center for Veterinary Drug Safety Evaluation, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - S Tang
- National Center for Veterinary Drug Safety Evaluation, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - X Xiao
- National Center for Veterinary Drug Safety Evaluation, College of Veterinary Medicine, China Agricultural University, Beijing, China
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50
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Xu F, Qian M, Wei Y, Wang Y, Wang J, Li M, Zhang Y, Zhao Y, Guo X. Postural change from lateral to supine is an important mechanism enhancing cephalic spread after injection of intrathecal 0.5% plain bupivacaine for cesarean section. Int J Obstet Anesth 2015; 24:308-12. [PMID: 26357934 DOI: 10.1016/j.ijoa.2015.06.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 06/14/2015] [Accepted: 06/29/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND Spinal anesthesia is widely used for cesarean section, but the factors that affect the spread of the block in pregnant patients are still not fully explained. This study was designed to investigate the effect of postural changes on sensory block level. METHODS Thirty patients scheduled for elective cesarean section under combined spinal-epidural anesthesia were randomly allocated into three groups. After intrathecal injection of 0.5% plain bupivacaine 7.5mg, patients in group S were immediately placed in the supine position with left tilt, patients in group L5 were kept lateral for 5 min and then turned to the supine position with left tilt, and patients in group L10 were kept lateral for 10 min and then turned to the supine position with left tilt. RESULTS At 5 min, median cephalad level of sensory block was lower in groups L5 and L10 compared with group S (corrected P<0.001); at 10 min, median cephalad sensory block level was lower in group L10 compared with group S (corrected P<0.001) and group L5 (corrected P<0.001), and lower in group L5 compared with group S (corrected P=0.033); at 15 min, median cephalad level of sensory block was lower in group L10 compared with group S (corrected P=0.003) and group L5 (corrected P=0.015). CONCLUSIONS In our population, using 0.5% plain bupivacaine 7.5mg, postural change from the lateral position to the supine position is an important mechanism enhancing cephalic spread of spinal anesthesia during late pregnancy.
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Affiliation(s)
- F Xu
- Department of Anesthesiology, Peking University Third Hospital, Beijing, China
| | - M Qian
- Department of Anesthesiology, Peking University Third Hospital, Beijing, China
| | - Y Wei
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
| | - Y Wang
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
| | - J Wang
- Department of Anesthesiology, Peking University Third Hospital, Beijing, China
| | - M Li
- Department of Anesthesiology, Peking University Third Hospital, Beijing, China
| | - Y Zhang
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
| | - Y Zhao
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
| | - X Guo
- Department of Anesthesiology, Peking University Third Hospital, Beijing, China.
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