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Lee EJ, Charles JF, Sinha I, Neppl RL. Loss of HNRNPU in Skeletal Muscle Increases Intramuscular Infiltration of Ly6C Positive Cells, leading to Muscle Atrophy through Activation of NF-κB Signaling. Adv Biol (Weinh) 2024; 8:e2400152. [PMID: 38797891 DOI: 10.1002/adbi.202400152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 05/10/2024] [Indexed: 05/29/2024]
Abstract
Heterogeneous nuclear ribonucleoprotein U (hnRNPU) is known to play multiple biological roles by regulating transcriptional expression, RNA splicing, RNA stability, and chromatin structure in a tissue-dependent manner. The role of hnRNPU in skeletal muscle development and maintenance has not been previously evaluated. In this study, skeletal muscle specific hnRNPU knock out mice is utilized and evaluated skeletal muscle mass and immune cell infiltration through development. By 4 weeks, muscle-specific hnRNPU knockout mice revealed Ly6C+ monocyte infiltration into skeletal muscle, which preceded muscle atrophy. Canonical NF-kB signaling is activated in a myofiber-autonomous manner with hnRNPU repression. Inducible hnRNPU skeletal muscle knockout mice further demonstrated that deletion of hnRNPU in adulthood is sufficient to cause muscle atrophy, suggesting that hnRNPU's role in muscle maintenance is not during development alone. Treatment with salirasib, to inhibit proliferation of immune cells, prevents muscle atrophy in muscle-specific hnRNPU knock out mice, indicating that immune cell infiltration plays causal role in muscle atrophy of hnRNPU knock out mice. Overall, the findings suggest that loss of hnRNPU triggers muscle inflammation and activates NF-κB signaling in a cell-autonomous manner, culminating in muscle atrophy.
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Affiliation(s)
- Eun-Joo Lee
- Department of Orthopedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Julia F Charles
- Department of Orthopedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
- Division of Rheumatology, Inflammation and Immunity, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Indranil Sinha
- Division of Plastic and reconstructive Surgery, Department of Surgery, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Ronald L Neppl
- Department of Orthopedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
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2
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Sitoe N, Ahmed MIM, Enosse M, Bakuli A, Chissumba RM, Held K, Hoelscher M, Nhassengo P, Khosa C, Rachow A, Geldmacher C. Tuberculosis Treatment Response Monitoring by the Phenotypic Characterization of MTB-Specific CD4+ T-Cells in Relation to HIV Infection Status. Pathogens 2022; 11:pathogens11091034. [PMID: 36145465 PMCID: PMC9506022 DOI: 10.3390/pathogens11091034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/03/2022] [Accepted: 09/06/2022] [Indexed: 11/16/2022] Open
Abstract
HIV infection causes systemic immune activation, impacts TB disease progression and hence may influence the diagnostic usability of Mycobacterium tuberculosis-specific T cell profiling. We investigated changes of activation and maturation markers on MTB-specific CD4+ T-cells after anti-tuberculosis treatment initiation in relation to HIV status and the severity of lung impairment. Thawed peripheral blood mononuclear cells from TB patients with (n = 27) and without HIV (n = 17) were analyzed using an intracellular IFN-γ assay and flow cytometry 2 and 6 months post-TB treatment initiation. H37Rv antigen was superior to the profile MTB-specific CD4+ T-cells phenotype when compared to PPD and ESAT6/CFP10. Regardless of HIV status and the severity of lung impairment, activation markers (CD38, HLA-DR and Ki67) on MTB-specific CD4+ T-cells declined after TB treatment initiation (p < 0.01), but the expression of the maturation marker CD27 did not change over the course of TB treatment. The MTB-specific T cell phenotype before, during and after treatment completion was similar between people living with and without HIV, as well as between subjects with severe and mild lung impairment. These data suggest that the assessment of activation and maturation markers on MTB-specific CD4+ T-cells can be useful for TB treatment monitoring, regardless of HIV status and the severity of lung disease.
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Affiliation(s)
- Nádia Sitoe
- Instituto Nacional de Saúde, Marracuene 3943, Mozambique
- CIH LMU Center for International Health, Ludwig-Maximilians University, 80802 Munich, Germany
- Correspondence: ; Tel.: +258-840784833
| | - Mohamed I. M. Ahmed
- Division of Infectious Diseases and Tropical Medicine, Klinikum of the University of Munich (LMU), 80802 Munich, Germany
- German Center for Infection Research, Partner Site Munich, 80802 Munich, Germany
| | - Maria Enosse
- Instituto Nacional de Saúde, Marracuene 3943, Mozambique
| | - Abhishek Bakuli
- Division of Infectious Diseases and Tropical Medicine, Klinikum of the University of Munich (LMU), 80802 Munich, Germany
- German Center for Infection Research, Partner Site Munich, 80802 Munich, Germany
| | | | - Kathrin Held
- Division of Infectious Diseases and Tropical Medicine, Klinikum of the University of Munich (LMU), 80802 Munich, Germany
- German Center for Infection Research, Partner Site Munich, 80802 Munich, Germany
| | - Michael Hoelscher
- Division of Infectious Diseases and Tropical Medicine, Klinikum of the University of Munich (LMU), 80802 Munich, Germany
- German Center for Infection Research, Partner Site Munich, 80802 Munich, Germany
| | | | - Celso Khosa
- Instituto Nacional de Saúde, Marracuene 3943, Mozambique
| | - Andrea Rachow
- Division of Infectious Diseases and Tropical Medicine, Klinikum of the University of Munich (LMU), 80802 Munich, Germany
- German Center for Infection Research, Partner Site Munich, 80802 Munich, Germany
| | - Christof Geldmacher
- Division of Infectious Diseases and Tropical Medicine, Klinikum of the University of Munich (LMU), 80802 Munich, Germany
- German Center for Infection Research, Partner Site Munich, 80802 Munich, Germany
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Alisjahbana B, Sulastri N, Livia R, Apriani L, Verrall AJ, Sahiratmadja E. Neutrophils and lymphocytes in relation to MMP-8 and MMP-9 levels in pulmonary tuberculosis and HIV co-infection. J Clin Tuberc Other Mycobact Dis 2022; 27:100308. [PMID: 35284660 PMCID: PMC8913355 DOI: 10.1016/j.jctube.2022.100308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background Objective Methods Result Conclusion
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Affiliation(s)
- Bachti Alisjahbana
- Department of Internal Medicine, Faculty of Medicine, Universitas Padjadjaran/Dr. Hasan Sadikin General Hospital, Bandung, Indonesia
- Research Center for Care and Control of Infectious Diseases, Universitas Padjadjaran, Bandung, Indonesia
- Corresponding author at: Department of Internal Medicine, Faculty of Medicine, Universitas Padjadjaran/Dr. Hasan Sadikin General Hospital, Bandung, Indonesia.
| | - Nuni Sulastri
- Faculty of Medicine, Universitas Padjadjaran, Bandung, Indonesia
| | - Resvi Livia
- Department of Clinical Pathology, Faculty of Medicine, Universitas Padjadjaran/Dr. Hasan Sadikin General Hospital, Bandung, Indonesia
| | - Lika Apriani
- Research Center for Care and Control of Infectious Diseases, Universitas Padjadjaran, Bandung, Indonesia
- Department of Public Health, Faculty of Medicine, Universitas Padjadjaran, Bandung, Indonesia
| | - Ayesha J Verrall
- Department of Pathology and Molecular Medicine, University of Otago, Wellington, New Zealand
| | - Edhyana Sahiratmadja
- Department of Biomedical Sciences, Faculty of Medicine, Universitas Padjadjaran, Bandung, Indonesia
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4
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Yi W, Cheng K. Diagnostic Value of Flow Cytometry in Kidney Transplant Recipients With Active Pulmonary Tuberculosis. EXP CLIN TRANSPLANT 2020; 18:671-675. [PMID: 32967596 DOI: 10.6002/ect.2020.0104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVES Long-term use of immunosuppressant drugs in kidney transplant recipients leads to immunosuppression. When active pulmonary tuberculosis infection occurs, lymphocyte proliferation and function are impaired, and the clinical symptoms of patients are not typical, which often leads to delay in diagnosis. MATERIALS AND METHODS We collected and analyzed the peripheral blood lymphocytes of hospitalized patients with active pulmonary tuberculosis and other types of pulmonary infection after kidney transplant within 2 years. The proportion and absolute values of lymphocytes were obtained by a flow cytometer. RESULTS There were significant differences in the proportion of CD8+ subsets between active pulmonary tuberculosis and bacterial pneumonia in kidney transplant recipients. If the proportion of CD8+ subsets in peripheral blood is over 33.27%, then the active pulmonary tuberculosis diagnosis sensitivity is higher than 88.9% and specificity is higher than 83.3%. CONCLUSIONS Analysis of peripheral lymphocyte subsets is helpful in the early diagnosis of kidney transplant recipients with active pulmonary tuberculosis. It should be added into routine examinations of kidney transplant recipients who have an ambiguous diagnosis between active pulmonary tuberculosis and bacterial pneumonia.
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Affiliation(s)
- Wang Yi
- From the Department of Transplant Surgery, the Third Xiangya Hospital of Central South University, Changsha, China
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5
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Li K, Ran R, Jiang Z, Fan C, Li T, Yin Z. Changes in T-lymphocyte subsets and risk factors in human immunodeficiency virus-negative patients with active tuberculosis. Infection 2020; 48:585-595. [PMID: 32472529 PMCID: PMC7395032 DOI: 10.1007/s15010-020-01451-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 05/21/2020] [Indexed: 11/08/2022]
Abstract
Purpose Immune function imbalance is closely associated with the occurrence and development of infectious diseases. We studied the characteristics of changes in T-lymphocyte subsets and their risk factors in HIV-negative patients with active tuberculosis (ATB). Methods T-lymphocyte subsets in 275 HIV-negative ATB patients were quantitatively analyzed and compared with an Mycobacteriumtuberculosis-free control group. Single-factor and multifactor analyses of clinical and laboratory characteristics of patients were also conducted. Results In ATB patients, CD4 and CD8 T-cell counts decreased, and the levels were positively interrelated (r = 0.655, P < 0.0001). After 4 weeks of antituberculosis treatment, CD4 and CD8 T-cell counts increased significantly but remained lower than in the control group. CD4 and CD8 cell counts were negatively associated with the extent of lesions detected in the chest by computed tomography (all P < 0.05). Although not reflected in the CD4/CD8 ratio, CD4 and CD8 cell counts differed between drug-resistant TB patients and drug-susceptible TB patients (P = 0.030). The multivariate analysis showed prealbumin, alpha-1 globulin, body mass index, and platelet count were independent risk factors for decreased CD4 cell count (all P < 0.05), while age and platelet count were independent risk factors for decreased CD8 cell count (all P < 0.05). Conclusion CD4 and CD8 T-cell counts showed the evident value in predicting ATB severity. An increase in the CD4/CD8 ratio may be a critical clue of drug resistance in ATB. Although the factors influencing CD4 and CD8 are not identical, our results indicated the importance of serum protein and platelets to ATB patients’ immune function. Electronic supplementary material The online version of this article (10.1007/s15010-020-01451-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Kui Li
- Department of Infectious Diseases, Ankang Central Hospital, Ankang, Shaanxi, China.,Department of Infectious Diseases, Ankang Central Hospital, Hubei University of Medicine, Hubei, China
| | - Renyu Ran
- Department of Infectious Diseases, Ankang Central Hospital, Ankang, Shaanxi, China
| | - Zicheng Jiang
- Department of Infectious Diseases, Ankang Central Hospital, Ankang, Shaanxi, China.,Department of Infectious Diseases, Ankang Central Hospital, Hubei University of Medicine, Hubei, China
| | - Chuanqi Fan
- Department of Infectious Diseases, Ankang Central Hospital, Ankang, Shaanxi, China
| | - Tao Li
- Department of Infectious Diseases, Ankang Central Hospital, Ankang, Shaanxi, China
| | - Zhiguo Yin
- Department of Pharmacy, Ankang Central Hospital, No. 85, South Jinzhou Road, Hanbin District, Ankang, 725000, Shaanxi, China.
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6
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Liu Q, Ou Q, Shen L, Qiu C, Zhang B, Zhang W, Shao L, Gao Y, Chen ZW. BATF Potentially Mediates Negative Regulation of PD-1/PD-Ls Pathway on T Cell Functions in Mycobacterium tuberculosis Infection. Front Immunol 2019; 10:2430. [PMID: 31681314 PMCID: PMC6803382 DOI: 10.3389/fimmu.2019.02430] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 09/30/2019] [Indexed: 11/13/2022] Open
Abstract
Background: Previously, we have found that blockade of PD-1/PD-Ls pathway could enhance CD4+ T cells-mediated protective immunity in patients with active tuberculosis (ATB). However, the mechanism of PD-1/PD-Ls pathway involved in negative regulation of anti-TB immunity has been still unclear. Recently, the study of human immunodeficiency virus (HIV) infection demonstrated that PD-1 could induce the expression of basic leucine zipper ATF-like transcription factor (BATF) to inhibit CD8+ T cell function. While the mechanism of immune regulation of BATF in Mycobacterium tuberculosis (M. tb) infection has not yet been elucidated. Methods: We enrolled 104 participants including ATB patients (n = 66), latent tuberculosis infection (LTBI) (n = 16) and healthy control (HC) (n = 22). The expressions of BATF in peripheral blood CD4+ and CD8+ T cells from enrolled subjects were determined using flow cytometry. Intervention with PD-1/PD-Ls pathway was performed by using blocking antibodies or human PD-L1 fusion protein. Silencing BATF in peripheral blood mononuclear cells (PBMCs) by electroporation with siRNA. Real-time quantitative PCR, CFSE dilution assay and enzyme linked immunosorbent assay (ELISA) were employed to test T cell functions after BATF knockdown. Results: The percentages of BATF+CD4+ (P = 0.0003 and P < 0.0001, respectively) and BATF+CD8+ (P = 0.0003 and P = 0.0003, respectively) cells were significantly increased in ATB patients compared with LTBI and HC. BATF-expressing PD-1+ T cells in CD4+ and CD8+ T cells were much higher in ATB group than those in LTBI group (P = 0.0426 and 0.0104, respectively) and HC group (P = 0.0133 and 0.0340, respectively). There was a positive correlation between BATF expression and PD-1 expression in ATB patients (for CD4+ T cells, r = 0.6761, P = 0.0158; for CD8+ T cells, r = 0.6104, P = 0.0350). BATF knockdown could enhance IL-2 and IFN-γ secretions (P = 0.0485 and 0.0473, respectively) and CD4+ T cells proliferation (P = 0.0041) in vitro. Conclusions: In the context of tuberculosis, BATF mediates negative regulation of PD-1/PD-Ls pathway on T cell functions. BATF knockdown can improve cytokine secretion and cells proliferation in vitro.
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Affiliation(s)
- Qianqian Liu
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Qinfang Ou
- Department of Pulmonary Diseases, Wuxi Infectious Diseases Hospital, Wuxi, China
| | - Lei Shen
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Shanghai, China
| | - Chao Qiu
- Institutes of Biomedical Sciences, Fudan University, Shanghai, China.,Key Laboratory of Medical Molecular Virology, Ministry of Education and Health, Institutes of Biomedical Science, Shanghai Medical College, Fudan University, Shanghai, China
| | - Bingyan Zhang
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Wenhong Zhang
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China.,Key Laboratory of Medical Molecular Virology, Ministry of Education and Health, Institutes of Biomedical Science, Shanghai Medical College, Fudan University, Shanghai, China
| | - Lingyun Shao
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Yan Gao
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Zheng W Chen
- Department of Microbiology and Immunology, Center for Primate Biomedical Research, University of Illinois College of Medicine, Chicago, IL, United States
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7
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Díaz A, Bongiovanni B, D’Attilio L, Santucci N, Dídoli G, Fernández RDV, Kovalevski L, Lioi S, Gardeñez W, Brandan N, Nannini LJ, Besedovsky H, del Rey A, Bottasso O, Bay ML. The clinical recovery of tuberculosis patients undergoing specific treatment is associated with changes in the immune and neuroendocrine responses. Pathog Dis 2017; 75:4033034. [DOI: 10.1093/femspd/ftx087] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 07/21/2017] [Indexed: 01/18/2023] Open
Affiliation(s)
- Ariana Díaz
- Instituto de Inmunología Clínica y Experimental de Rosario, UNR-CONICET, 2000 Rosario, Santa Fe, Argentina
| | - Bettina Bongiovanni
- Instituto de Inmunología Clínica y Experimental de Rosario, UNR-CONICET, 2000 Rosario, Santa Fe, Argentina
| | - Luciano D’Attilio
- Instituto de Inmunología Clínica y Experimental de Rosario, UNR-CONICET, 2000 Rosario, Santa Fe, Argentina
| | - Natalia Santucci
- Instituto de Inmunología Clínica y Experimental de Rosario, UNR-CONICET, 2000 Rosario, Santa Fe, Argentina
| | - Griselda Dídoli
- Instituto de Inmunología Clínica y Experimental de Rosario, UNR-CONICET, 2000 Rosario, Santa Fe, Argentina
| | - Rocío del Valle Fernández
- Instituto de Inmunología Clínica y Experimental de Rosario, UNR-CONICET, 2000 Rosario, Santa Fe, Argentina
| | - Leandro Kovalevski
- Facultad de Ciencias Económicas y Estadística, UNR, Escuela de Estadística, 2000 Rosario, Santa Fe, Argentina
| | - Susana Lioi
- Laboratorio Central Rosario, Hospital Provincial del Centenario, 2000 Rosario, Santa Fe, Argentina
| | - Walter Gardeñez
- Servicio de Neumonología, Hospital Provincial del Centenario, 2000 Rosario, Santa Fe, Argentina
| | - Nadia Brandan
- Servicio de Neumonología, Hospital Escuela Eva Perón, 2152 Granadero Baigorria, Santa Fe, Argentina
| | - Luis J Nannini
- Servicio de Neumonología, Hospital Escuela Eva Perón, 2152 Granadero Baigorria, Santa Fe, Argentina
| | - Hugo Besedovsky
- Institute of Physiology and Pathophysiology, Philipps University, Faculty of Medicine, 35037 Marburg, Germany
| | - Adriana del Rey
- Institute of Physiology and Pathophysiology, Philipps University, Faculty of Medicine, 35037 Marburg, Germany
| | - Oscar Bottasso
- Instituto de Inmunología Clínica y Experimental de Rosario, UNR-CONICET, 2000 Rosario, Santa Fe, Argentina
| | - María Luisa Bay
- Instituto de Inmunología Clínica y Experimental de Rosario, UNR-CONICET, 2000 Rosario, Santa Fe, Argentina
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