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Huang Y, Zhang Q, Lam CYK, Li C, Yang C, Zhong Z, Zhang R, Yan J, Chen J, Yin B, Wong SHD, Yang M. An Aggregation-Induced Emission-Based Dual Emitting Nanoprobe for Detecting Intracellular pH and Unravelling Metabolic Variations in Differentiating Lymphocytes. ACS NANO 2024; 18:15935-15949. [PMID: 38833531 DOI: 10.1021/acsnano.4c03796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
Monitoring T lymphocyte differentiation is essential for understanding T cell fate regulation and advancing adoptive T cell immunotherapy. However, current biomarker analysis methods necessitate cell lysis, leading to source depletion. Intracellular pH (pHi) can be affected by the presence of lactic acid (LA), a metabolic mediator of T cell activity such as glycolysis during T cell activation; therefore, it is a potentially a good biomarker of T cell state. In this work, a dual emitting enhancement-based nanoprobe, namely, AIEgen@F127-AptCD8, was developed to accurately detect the pHi of T cells to "read" the T cell differentiation process. The nanocore of this probe comprises a pair of AIE dyes, TPE-AMC (pH-sensitive moiety) and TPE-TCF, that form a donor-acceptor pair for sensitive detection of pHi by dual emitting enhancement analysis. The nanoprobe exhibits a distinctly sensitive narrow range of pHi values (from 6.0 to 7.4) that can precisely distinguish the differentiated lymphocytes from naïve ones based on their distinct pHi profiles. Activated CD8+ T cells demonstrate lower pHi (6.49 ± 0.09) than the naïve cells (7.26 ± 0.11); Jurkat cells exhibit lower pHi (6.43 ± 0.06) compared to that of nonactivated ones (7.29 ± 0.09) on 7 days post-activation. The glycolytic product profiles in T cells strongly correlate with their pHi profiles, ascertaining the reliability of probing pHi for predicting T cell states. The specificity and dynamic detection capabilities of this nanoprobe make it a promising tool for indirectly and noninvasively monitoring T cell activation and differentiation states.
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Affiliation(s)
- Yingying Huang
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
| | - Qin Zhang
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
| | - Ching Ying Katherine Lam
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
| | - Chuanqi Li
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
| | - Chen Yang
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
| | - Zhiming Zhong
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
| | - Ruolin Zhang
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
| | - Jiaxiang Yan
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
| | - Jiareng Chen
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
| | - Bohan Yin
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao Marine Science and Technology Center, Qingdao 266237, China
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
| | - Siu Hong Dexter Wong
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao Marine Science and Technology Center, Qingdao 266237, China
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
- Research Institute for Sports Science and Technology, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
| | - Mo Yang
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
- Research Institute for Sports Science and Technology, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518000, China
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2
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Turnbull IC, Gaitas A. Characterizing induced pluripotent stem cells and derived cardiomyocytes: insights from nano scale mass measurements and mechanical properties. NANOSCALE ADVANCES 2024; 6:1059-1064. [PMID: 38356620 PMCID: PMC10863719 DOI: 10.1039/d3na00727h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Accepted: 11/15/2023] [Indexed: 02/16/2024]
Abstract
Our study reveals that the nano-mechanical measures of elasticity and cell mass change significantly through induced pluripotent stem cell (iPSC) differentiation to cardiomyocytes, providing a reliable method to evaluate such processes. The findings support the importance of identifying these properties, and highlight the potential of AFM for comprehensive characterization of iPSC at the nanoscale.
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Affiliation(s)
- Irene C Turnbull
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai New York NY 10029 USA
| | - Angelo Gaitas
- The Estelle and Daniel Maggin Department of Neurology, Icahn School of Medicine at Mount Sinai New York NY 10029 USA
- BioMedical Engineering & Imaging Institute, Leon and Norma Hess Center for Science and Medicine New York NY 10029 USA
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3
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Baek J, Qin SS, Prieto PA, Parker KJ. H-Scan Discrimination for Tumor Microenvironmental Heterogeneity in Melanoma. ULTRASOUND IN MEDICINE & BIOLOGY 2024; 50:268-276. [PMID: 37993356 PMCID: PMC10794040 DOI: 10.1016/j.ultrasmedbio.2023.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 10/24/2023] [Accepted: 10/28/2023] [Indexed: 11/24/2023]
Abstract
OBJECTIVE Melanoma is a form of malignant skin cancer that exhibits significant inter-tumoral differences in the tumor microenvironment (TME) secondary to genetic mutations. The heterogeneity may be subtle but can complicate the treatment of metastatic melanoma, contributing to a high mortality rate. Therefore, developing an accurate and non-invasive procedure to discriminate microenvironmental heterogeneity to facilitate therapy selection is an important goal. METHODS In vivo murine melanoma models that recapitulate human disease using synchronous implanted YUMM 1.7 (Yale University Mouse Melanoma) and YUMMER 1.7 (Yale University Mouse Melanoma Exposed to Radiation) murine melanoma lines were investigated. Mice were treated with antibodies to modulate the immune response and longitudinally scanned with ultrasound (US). US radiofrequency data were processed using the H-scan analysis, attenuation estimation and B-mode processing to extract five US features. The measures were used to compare different TMEs (YUMMER vs. YUMM) and responses to immunomodulatory therapies with CD8 depletion or programmed cell death protein 1 (PD-1) inhibition. RESULTS Multiparametric analysis produced a combined H-scan parameter, resolving significant differences (i) between untreated YUMMER and YUMM and (ii) between untreated, PD-1-treated and CD8-treated YUMMER. However, more importantly, the B-mode and attenuation measures failed to differentiate YUMMER and YUMM and to monitor treatment responses, indicating that H-scan is required to differentiate subtle differences within the TME. CONCLUSION We anticipate that the H-scan analysis could discriminate heterogeneous melanoma metastases and guide diagnosis and treatment selection, potentially reducing the need for invasive biopsies or immunologic procedures.
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Affiliation(s)
- Jihye Baek
- Department of Electrical and Computer Engineering, University of Rochester, Rochester, NY, USA
| | - Shuyang S Qin
- Department of Microbiology & Immunology, University of Rochester School of Medicine & Dentistry, Rochester, NY, USA
| | - Peter A Prieto
- Department of Surgery, University of Rochester Medical Center, Rochester, NY, USA
| | - Kevin J Parker
- Department of Electrical and Computer Engineering, University of Rochester, Rochester, NY, USA.
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4
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Davies SP, Ronca V, Wootton GE, Krajewska NM, Bozward AG, Fiancette R, Patten DA, Yankouskaya K, Reynolds GM, Pat S, Osei-Bordom DC, Richardson N, Grover LM, Weston CJ, Oo YH. Expression of E-cadherin by CD8 + T cells promotes their invasion into biliary epithelial cells. Nat Commun 2024; 15:853. [PMID: 38286990 PMCID: PMC10825166 DOI: 10.1038/s41467-024-44910-2] [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: 02/15/2023] [Accepted: 01/03/2024] [Indexed: 01/31/2024] Open
Abstract
The presence of CD8+ T cells in the cytoplasm of biliary epithelial cells (BEC) has been correlated with biliary damage associated with primary biliary cholangitis (PBC). Here, we characterise the mechanism of CD8+ T cell invasion into BEC. CD8+ T cells observed within BEC were large, eccentric, and expressed E-cadherin, CD103 and CD69. They were also not contained within secondary vesicles. Internalisation required cytoskeletal rearrangements which facilitated contact with BEC. Internalised CD8+ T cells were observed in both non-cirrhotic and cirrhotic diseased liver tissues but enriched in PBC patients, both during active disease and at the time of transplantation. E-cadherin expression by CD8+ T cells correlated with frequency of internalisation of these cells into BEC. E-cadherin+ CD8+ T cells formed β-catenin-associated interactions with BEC, were larger than E-cadherin- CD8+ T cells and invaded into BEC more frequently. Overall, we unveil a distinct cell-in-cell structure process in the liver detailing the invasion of E-cadherin+ CD103+ CD69+ CD8+ T cells into BEC.
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Affiliation(s)
- Scott P Davies
- Centre for Liver and Gastrointestinal Research, Institute of Biomedical Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK.
- National Institute of Health Research Birmingham Biomedical Research Centre, University of Birmingham and University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK.
- National Institute for Health Research, Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK.
- European Reference Network on Hepatological Diseases (ERN Rare-Liver), Birmingham, UK.
| | - Vincenzo Ronca
- Centre for Liver and Gastrointestinal Research, Institute of Biomedical Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
- National Institute of Health Research Birmingham Biomedical Research Centre, University of Birmingham and University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
- European Reference Network on Hepatological Diseases (ERN Rare-Liver), Birmingham, UK
| | - Grace E Wootton
- Centre for Liver and Gastrointestinal Research, Institute of Biomedical Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
- National Institute of Health Research Birmingham Biomedical Research Centre, University of Birmingham and University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
- National Institute for Health Research, Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
- European Reference Network on Hepatological Diseases (ERN Rare-Liver), Birmingham, UK
- Birmingham Advanced Cellular Therapy Facility, University of Birmingham, Birmingham, UK
| | - Natalia M Krajewska
- Centre for Liver and Gastrointestinal Research, Institute of Biomedical Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
- National Institute of Health Research Birmingham Biomedical Research Centre, University of Birmingham and University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Amber G Bozward
- Centre for Liver and Gastrointestinal Research, Institute of Biomedical Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
- National Institute of Health Research Birmingham Biomedical Research Centre, University of Birmingham and University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
- National Institute for Health Research, Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
- European Reference Network on Hepatological Diseases (ERN Rare-Liver), Birmingham, UK
- Birmingham Advanced Cellular Therapy Facility, University of Birmingham, Birmingham, UK
| | - Rémi Fiancette
- Centre for Liver and Gastrointestinal Research, Institute of Biomedical Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
- National Institute of Health Research Birmingham Biomedical Research Centre, University of Birmingham and University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
- National Institute for Health Research, Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Daniel A Patten
- Centre for Liver and Gastrointestinal Research, Institute of Biomedical Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
- National Institute of Health Research Birmingham Biomedical Research Centre, University of Birmingham and University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
- National Institute for Health Research, Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Katharina Yankouskaya
- Centre for Liver and Gastrointestinal Research, Institute of Biomedical Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
- National Institute of Health Research Birmingham Biomedical Research Centre, University of Birmingham and University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Gary M Reynolds
- Centre for Liver and Gastrointestinal Research, Institute of Biomedical Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
- National Institute of Health Research Birmingham Biomedical Research Centre, University of Birmingham and University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Sofia Pat
- Centre for Liver and Gastrointestinal Research, Institute of Biomedical Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
- National Institute of Health Research Birmingham Biomedical Research Centre, University of Birmingham and University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Daniel C Osei-Bordom
- Centre for Liver and Gastrointestinal Research, Institute of Biomedical Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
- National Institute of Health Research Birmingham Biomedical Research Centre, University of Birmingham and University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Naomi Richardson
- Centre for Liver and Gastrointestinal Research, Institute of Biomedical Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
- National Institute of Health Research Birmingham Biomedical Research Centre, University of Birmingham and University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
- National Institute for Health Research, Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
- European Reference Network on Hepatological Diseases (ERN Rare-Liver), Birmingham, UK
- Birmingham Advanced Cellular Therapy Facility, University of Birmingham, Birmingham, UK
| | - Liam M Grover
- National Institute of Health Research Birmingham Biomedical Research Centre, University of Birmingham and University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
- School of Chemical Engineering, University of Birmingham, Birmingham, UK
- Healthcare Technologies Institute, University of Birmingham, Birmingham, UK
| | - Christopher J Weston
- Centre for Liver and Gastrointestinal Research, Institute of Biomedical Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
- National Institute of Health Research Birmingham Biomedical Research Centre, University of Birmingham and University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
- National Institute for Health Research, Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Ye H Oo
- Centre for Liver and Gastrointestinal Research, Institute of Biomedical Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK.
- National Institute of Health Research Birmingham Biomedical Research Centre, University of Birmingham and University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK.
- National Institute for Health Research, Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK.
- European Reference Network on Hepatological Diseases (ERN Rare-Liver), Birmingham, UK.
- Birmingham Advanced Cellular Therapy Facility, University of Birmingham, Birmingham, UK.
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Wang Y, Sun Z, Ping J, Tang J, He B, Chang T, Zhou Q, Yuan S, Tang Z, Li X, Lu Y, He R, He X, Liu Z, Yin L, Wu N. Cell volume controlled by LRRC8A-formed volume-regulated anion channels fine-tunes T cell activation and function. Nat Commun 2023; 14:7075. [PMID: 37925509 PMCID: PMC10625614 DOI: 10.1038/s41467-023-42817-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 10/23/2023] [Indexed: 11/06/2023] Open
Abstract
Biosynthesis drives the cell volume increase during T cell activation. However, the contribution of cell volume regulation in TCR signaling during T lymphoblast formation and its underlying mechanisms remain unclear. Here we show that cell volume regulation is required for optimal T cell activation. Inhibition of VRACs (volume-regulated anion channels) and deletion of leucine-rich repeat-containing protein 8A (LRRC8A) channel components impair T cell activation and function, particularly under weak TCR stimulation. Additionally, LRRC8A has distinct influences on mRNA transcriptional profiles, indicating the prominent effects of cell volume regulation for T cell functions. Moreover, cell volume regulation via LRRC8A controls T cell-mediated antiviral immunity and shapes the TCR repertoire in the thymus. Mechanistically, LRRC8A governs stringent cell volume increase via regulated volume decrease (RVD) during T cell blast formation to keep the TCR signaling molecules at an adequate density. Together, our results show a further layer of T cell activation regulation that LRRC8A functions as a cell volume controlling "valve" to facilitate T cell activation.
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Affiliation(s)
- Yuman Wang
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zaiqiao Sun
- State Key Laboratory of Virology, Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Jieming Ping
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jianlong Tang
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Boxiao He
- State Key Laboratory of Virology, Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Teding Chang
- Department of Traumatic Surgery, Tongji Trauma Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qian Zhou
- Department of Physiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shijie Yuan
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhaohui Tang
- Department of Traumatic Surgery, Tongji Trauma Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xin Li
- Medical Research Center, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yan Lu
- Department of Clinical Immunology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Ran He
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ximiao He
- Department of Physiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zheng Liu
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Lei Yin
- State Key Laboratory of Virology, Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China.
| | - Ning Wu
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
- Cell Architecture Research Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
- The First Affiliated Hospital of Anhui Medical University, Institute of Clinical Immunology, Anhui Medical University, Hefei, China.
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6
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Gedaly R, Cornea V, Turcios L, Edmisson JS, Harris DD, Watt DS, Chapelin F, Khurana A, Mei X, Liu C, Taylor I, Gonzalez-Valdivieso J, Mitchel H, Ruffing A, Chishti A, Orozco G, Zwischenberger J, Evers BM, Marti F. Anti-neoplastic sulfonamides alter the metabolic homeostasis and disrupt the suppressor activity of regulatory T cells. Sci Rep 2022; 12:19112. [PMID: 36352020 PMCID: PMC9646802 DOI: 10.1038/s41598-022-23601-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 11/02/2022] [Indexed: 11/11/2022] Open
Abstract
Regulatory T cells (Tregs) are essential to maintain self-tolerance and immune homeostasis but, as components of the tumor microenvironment (TME), are also a major barrier to effective cancer immunosurveillance and immunotherapy. FH535 and its derivative Y3 are two N-aryl-benzene-sulfonamides (NABs) that inhibit HCC cell proliferation and tumor progression. However, the impact of NABs on the immune cells in the TME is not yet known. Analyses of explanted livers from patients with hepatocellular carcinoma (HCC) showed that high levels of tumor-infiltrating Tregs were associated with poor tumor differentiation. These results lead us to investigate the immunomodulatory effects of NABs in regulatory and effector T cells. Exposure of primary human Tregs to NABs induced a rapid but temporary increase of cell expansion, a gradual disruption of suppressor activity, and concomitant bioenergetics and autophagic flux dysregulations. In contrast to Tregs, no gross effects were observed in effector T cells. Addition of Rapamycin prevented the functional decay of Tregs and restored their metabolic profile, suggesting that NAB effects require the integrity of the mTOR pathway. This study revealed the immunomodulatory properties of NABs with a preferential impact on Treg activity and provided novel insights into the anti-tumor potential of sulfonamides.
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Affiliation(s)
- Roberto Gedaly
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA.
- Lucillle Parker Markey Cancer Center, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA.
- Division of Transplantation, Section for Quality and Biostatistics, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA.
- Alliance Research Initiative (TILT Alliance), College of Medicine, University of Kentucky, Lexington, KY, 40536, USA.
- Department of Surgery, Transplant Center, 740 South Limestone, K 301, Rm 312, Lexington, KY, 40536-0284, USA.
| | - Virgilius Cornea
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
- Lucillle Parker Markey Cancer Center, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - Lilia Turcios
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - Jacob S Edmisson
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - Dwight D Harris
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - David S Watt
- Lucillle Parker Markey Cancer Center, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, KY, 40536, USA
| | - Fanny Chapelin
- Lucillle Parker Markey Cancer Center, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
- Alliance Research Initiative (TILT Alliance), College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
- Department of Biomedical Engineering, College of Medicine, University of Kentucky, Lexington, KY, 40506, USA
| | - Aman Khurana
- Lucillle Parker Markey Cancer Center, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
- Alliance Research Initiative (TILT Alliance), College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
- Department of Radiology, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - Xiaonan Mei
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
- Division of Transplantation, Section for Quality and Biostatistics, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - Chunming Liu
- Lucillle Parker Markey Cancer Center, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - Isaac Taylor
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - Juan Gonzalez-Valdivieso
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - Hunter Mitchel
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
- Department of Science & Health, School of Science, Health & Mathematics, Asbury University, Wilmore, KY, 40390, USA
| | - Alexis Ruffing
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
- Department of Science & Health, School of Science, Health & Mathematics, Asbury University, Wilmore, KY, 40390, USA
| | - Asir Chishti
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - Gabriel Orozco
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - Joseph Zwischenberger
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - B Mark Evers
- Lucillle Parker Markey Cancer Center, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - Francesc Marti
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA.
- Lucillle Parker Markey Cancer Center, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA.
- Alliance Research Initiative (TILT Alliance), College of Medicine, University of Kentucky, Lexington, KY, 40536, USA.
- Department of Surgery, Transplant Center, Peter P. Bosomworth Health Sciences Research Building (HSRB), Office: Room# 363 / Lab: Room# 361, 1095 Veterans Drive, Lexington, KY, 40536-0305, USA.
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7
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Orozco G, Gupta M, Gedaly R, Marti F. Untangling the Knots of Regulatory T Cell Therapy in Solid Organ Transplantation. Front Immunol 2022; 13:883855. [PMID: 35720387 PMCID: PMC9198594 DOI: 10.3389/fimmu.2022.883855] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 04/07/2022] [Indexed: 12/16/2022] Open
Abstract
Numerous preclinical studies have provided solid evidence supporting adoptive transfer of regulatory T cells (Tregs) to induce organ tolerance. As a result, there are 7 currently active Treg cell-based clinical trials in solid organ transplantation worldwide, all of which are early phase I or phase I/II trials. Although the results of these trials are optimistic and support both safety and feasibility, many experimental and clinical unanswered questions are slowing the progression of this new therapeutic alternative. In this review, we bring to the forefront the major challenges that Treg cell transplant investigators are currently facing, including the phenotypic and functional diversity of Treg cells, lineage stability, non-standardized ex vivo Treg cell manufacturing process, adequacy of administration route, inability of monitoring and tracking infused cells, and lack of biomarkers or validated surrogate endpoints of efficacy in clinical trials. With this plethora of interrogation marks, we are at a challenging and exciting crossroad where properly addressing these questions will determine the successful implementation of Treg cell-based immunotherapy in clinical transplantation.
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Affiliation(s)
- Gabriel Orozco
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, United States
| | - Meera Gupta
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, United States.,Alliance Research Initiative [Treg cells to Induce Liver Tolerance (TILT) Alliance], University of Kentucky College of Medicine, Lexington, KY, United States
| | - Roberto Gedaly
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, United States.,Alliance Research Initiative [Treg cells to Induce Liver Tolerance (TILT) Alliance], University of Kentucky College of Medicine, Lexington, KY, United States.,Lucille Parker Markey Cancer Center, University of Kentucky, College of Medicine, Lexington, KY, United States
| | - Francesc Marti
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, United States.,Alliance Research Initiative [Treg cells to Induce Liver Tolerance (TILT) Alliance], University of Kentucky College of Medicine, Lexington, KY, United States.,Lucille Parker Markey Cancer Center, University of Kentucky, College of Medicine, Lexington, KY, United States
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8
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Cavounidis A, Pandey S, Capitani M, Friedrich M, Cross A, Gartner L, Aschenbrenner D, Kim-Schulze S, Lam YK, Berridge G, McGovern DPB, Kessler B, Fischer R, Klenerman P, Hester J, Issa F, Torres EA, Powrie F, Gochuico BR, Gahl WA, Cohen L, Uhlig HH. Hermansky-Pudlak syndrome type 1 causes impaired anti-microbial immunity and inflammation due to dysregulated immunometabolism. Mucosal Immunol 2022; 15:1431-1446. [PMID: 36302964 PMCID: PMC9607658 DOI: 10.1038/s41385-022-00572-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 08/11/2022] [Accepted: 08/24/2022] [Indexed: 02/04/2023]
Abstract
Hermansky-Pudlak syndrome (HPS) types 1 and 4 are caused by defective vesicle trafficking. The mechanism for Crohn's disease-like inflammation, lung fibrosis, and macrophage lipid accumulation in these patients remains enigmatic. The aim of this study is to understand the cellular basis of inflammation in HPS-1. We performed mass cytometry, proteomic and transcriptomic analyses to investigate peripheral blood cells and serum of HPS-1 patients. Using spatial transcriptomics, granuloma-associated signatures in the tissue of an HPS-1 patient with granulomatous colitis were dissected. In vitro studies were conducted to investigate anti-microbial responses of HPS-1 patient macrophages and cell lines. Monocytes of HPS-1 patients exhibit an inflammatory phenotype associated with dysregulated TNF, IL-1α, OSM in serum, and monocyte-derived macrophages. Inflammatory macrophages accumulate in the intestine and granuloma-associated macrophages in HPS-1 show transcriptional signatures suggestive of a lipid storage and metabolic defect. We show that HPS1 deficiency leads to an altered metabolic program and Rab32-dependent amplified mTOR signaling, facilitated by the accumulation of mTOR on lysosomes. This pathogenic mechanism translates into aberrant bacterial clearance, which can be rescued with mTORC1 inhibition. Rab32-mediated mTOR signaling acts as an immuno-metabolic checkpoint, adding to the evidence that defective bioenergetics can drive hampered anti-microbial activity and contribute to inflammation.
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Affiliation(s)
- Athena Cavounidis
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- GSK, Wavre, Belgium
| | - Sumeet Pandey
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- GSK Immunology Network, GSK Medicines Research Center, Stevenage, UK
| | - Melania Capitani
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- SenTcell Ltd, London, UK
| | - Matthias Friedrich
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Amy Cross
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Lisa Gartner
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Dominik Aschenbrenner
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Autoimmunity, Transplantation and Inflammation, Novartis Institutes for BioMedical Research, Novartis Pharma AG, Basel, Switzerland
| | - Seunghee Kim-Schulze
- Human Immune Monitoring Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Ying Ka Lam
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Georgina Berridge
- Target Discovery Institute, Center for Medicines Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Dermot P B McGovern
- F. Widjaja Foundation Inflammatory Bowel and Immunobiology Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Benedikt Kessler
- Target Discovery Institute, Center for Medicines Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Roman Fischer
- Target Discovery Institute, Center for Medicines Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Paul Klenerman
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Joanna Hester
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Fadi Issa
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Esther A Torres
- University of Puerto Rico School of Medicine, Puerto Rico, USA
| | - Fiona Powrie
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Bernadette R Gochuico
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - William A Gahl
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Louis Cohen
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Holm H Uhlig
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, UK.
- Department of Paediatrics, University of Oxford, Oxford, UK.
- Oxford NIHR Biomedical Research Centre, Oxford, UK.
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9
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Sun R, Lei C, Chen L, He L, Guo H, Zhang X, Feng W, Yan J, McClain CJ, Deng Z. Alcohol-driven metabolic reprogramming promotes development of RORγt-deficient thymic lymphoma. Oncogene 2022; 41:2287-2302. [PMID: 35246617 PMCID: PMC9018612 DOI: 10.1038/s41388-022-02257-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 02/10/2022] [Accepted: 02/17/2022] [Indexed: 11/23/2022]
Abstract
RORγt is a master regulator of Th17 cells. Despite evidence
linking RORγt deficiency/inhibition with metastatic thymic T cell
lymphomas, the role of RORγt in lymphoma metabolism is unknown. Chronic
alcohol consumption plays a causal role in many human cancers. The risk of T
cell lymphoma remains unclear in humans with alcohol use disorders (AUD) after
chronic RORγt inhibition. Here we demonstrated that alcohol consumption
accelerates RORγt deficiency-induced lymphomagenesis. Loss of
RORγt signaling in the thymus promotes aerobic glycolysis and
glutaminolysis and increases allocation of glutamine carbon into lipids.
Importantly, alcohol consumption results in a shift from aerobic glycolysis to
glutaminolysis. Both RORγt deficiency- and alcohol-induced metabolic
alterations are mediated by c-Myc, as silencing of c-Myc decreases the effects
of alcohol consumption and RORγt deficiency on glutaminolysis,
biosynthesis, and tumor growth in vivo. The ethanol-mediated c-Myc activation
coupled with increased glutaminolysis underscore the critical role of
RORγt-Myc signaling and translation in lymphoma.
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Affiliation(s)
- Rui Sun
- Department of Surgery, Division of Immunotherapy, University of Louisville, Louisville, KY, USA.,Department of Oncology, Wuhan Fourth Hospital, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430033, China.,Brown Cancer Center, University of Louisville, Louisville, KY, USA
| | - Chao Lei
- Department of Surgery, Division of Immunotherapy, University of Louisville, Louisville, KY, USA.,Brown Cancer Center, University of Louisville, Louisville, KY, USA
| | - Liang Chen
- Department of Surgery, Division of Immunotherapy, University of Louisville, Louisville, KY, USA.,Brown Cancer Center, University of Louisville, Louisville, KY, USA
| | - Liqing He
- Department of Chemistry, University of Louisville, Louisville, KY, USA
| | - Haixun Guo
- Department of Radiology, University of Louisville, Louisville, KY, USA
| | - Xiang Zhang
- Department of Chemistry, University of Louisville, Louisville, KY, USA.,Alcohol Research Center, University of Louisville, Louisville, KY, USA.,Hepatobiology & Toxicology Center, University of Louisville, Louisville, KY, USA
| | - Wenke Feng
- Alcohol Research Center, University of Louisville, Louisville, KY, USA.,Hepatobiology & Toxicology Center, University of Louisville, Louisville, KY, USA.,Department of Medicine, University of Louisville, Louisville, KY, USA
| | - Jun Yan
- Department of Surgery, Division of Immunotherapy, University of Louisville, Louisville, KY, USA.,Brown Cancer Center, University of Louisville, Louisville, KY, USA
| | - Craig J McClain
- Alcohol Research Center, University of Louisville, Louisville, KY, USA.,Hepatobiology & Toxicology Center, University of Louisville, Louisville, KY, USA.,Department of Medicine, University of Louisville, Louisville, KY, USA.,Robley Rex VA Medical Center, Louisville, KY, USA
| | - Zhongbin Deng
- Department of Surgery, Division of Immunotherapy, University of Louisville, Louisville, KY, USA. .,Brown Cancer Center, University of Louisville, Louisville, KY, USA. .,Alcohol Research Center, University of Louisville, Louisville, KY, USA. .,Hepatobiology & Toxicology Center, University of Louisville, Louisville, KY, USA.
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10
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Improving cell viability using counterflow centrifugal elutriation. Cytotherapy 2022; 24:650-658. [DOI: 10.1016/j.jcyt.2022.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 01/15/2022] [Accepted: 01/24/2022] [Indexed: 11/19/2022]
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11
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Abstract
Vaccination affords protection from disease by activating pathogen-specific immune cells and facilitating the development of persistent immunologic memory toward the vaccine-specific pathogen. Current vaccine regimens are often based on the efficiency of the acute immune response, and not necessarily on the generation of memory cells, in part because the mechanisms underlying the development of efficient immune memory remain incompletely understood. This Review describes recent advances in defining memory T cell metabolism and how metabolism of these cells might be altered in patients affected by mitochondrial diseases or metabolic syndrome, who show higher susceptibility to recurrent infections and higher rates of vaccine failure. It discusses how this new understanding could add to the way we think about immunologic memory, vaccine development, and cancer immunotherapy.
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Affiliation(s)
- Mauro Corrado
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Cologne, Germany
| | - Erika L Pearce
- Department of Oncology, The Bloomberg~Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University, Baltimore, Maryland, USA
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12
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Aria H, Ghaedrahmati F, Ganjalikhani-Hakemi M. Cutting edge: Metabolic immune reprogramming, reactive oxygen species, and cancer. J Cell Physiol 2021; 236:6168-6189. [PMID: 33561318 DOI: 10.1002/jcp.30303] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 01/09/2021] [Accepted: 01/19/2021] [Indexed: 02/05/2023]
Abstract
A recently proposed term "immunometabolism" points to the functional intracellular metabolic changes that occur within different immune cells. Recent findings suggest that immune responses can be determined by the metabolic status of immune cells and metabolic reprogramming is an important feature of immune cell activation. Metabolic reprogramming is also well known for cancer cells and has been suggested as a major sign of cancer progression. Metabolic reprogramming of immune cells is also seen in the tumor microenvironment. In the past decade, immunometabolism has progressively become an extraordinarily vibrant and productive area of study in immunology because of its importance for immunotherapy. Understanding the immunometabolic situation of T cells and other immune cells along with the metabolic behavior of cancer cells can help us design new therapeutic approaches against cancers. Here, we have the aim to review the cutting-edge findings on the immunometabolic situation in immune and tumor cells. We discuss new findings on signaling pathways during metabolic reprogramming, its regulation, and the participation of reactive oxygen species in these processes.
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Affiliation(s)
- Hamid Aria
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Farhoodeh Ghaedrahmati
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
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13
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Estrada A, Rodriguez AC, Rodriguez G, Grant AH, Ayala-Marin YM, Arrieta AJ, Kirken RA. Phosphorylation of CrkL S114 induced by common gamma chain cytokines and T-cell receptor signal transduction. Sci Rep 2021; 11:16951. [PMID: 34417497 PMCID: PMC8379229 DOI: 10.1038/s41598-021-96428-y] [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] [Received: 11/09/2020] [Accepted: 07/23/2021] [Indexed: 11/09/2022] Open
Abstract
T-cell activation and cellular expansion by common gamma chain cytokines such as Interleukin-2 is necessary for adaptive immunity. However, when unregulated these same pathways promote pathologies ranging from autoimmune disorders to cancer. While the functional role of Interleukin-2 and downstream effector molecules is relatively clear, the repertoire of phosphoregulatory proteins downstream of this pathway is incomplete. To identify phosphoproteins downstream of common gamma chain receptor, YT cells were radiolabeled with [32P]-orthophosphate and stimulated with Interleukin-2. Subsequently, tyrosine phosphorylated proteins were immunopurified and subjected to tandem mass spectrometry-leading to the identification of CrkL. Phosphoamino acid analysis revealed concurrent serine phosphorylation of CrkL and was later identified as S114 by mass spectrometry analysis. S114 was inducible through stimulation with Interleukin-2 or T-cell receptor stimulation. Polyclonal antibodies were generated against CrkL phospho-S114, and used to show its inducibility by multiple stimuli. These findings confirm CrkL as an Interleukin-2 responsive protein that becomes phosphorylated at S114 by a kinase/s downstream of PI3K and MEK/ERK signaling.
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Affiliation(s)
- Armando Estrada
- Department of Biological Sciences, The University of Texas At El Paso, El Paso, TX, 79968, USA.,Border Biomedical Research Center, The University of Texas At El Paso, El Paso, TX, 79968, USA
| | - Alejandro C Rodriguez
- Department of Biological Sciences, The University of Texas At El Paso, El Paso, TX, 79968, USA.,Border Biomedical Research Center, The University of Texas At El Paso, El Paso, TX, 79968, USA
| | - Georgialina Rodriguez
- Department of Biological Sciences, The University of Texas At El Paso, El Paso, TX, 79968, USA.,Border Biomedical Research Center, The University of Texas At El Paso, El Paso, TX, 79968, USA
| | - Alice H Grant
- Department of Biological Sciences, The University of Texas At El Paso, El Paso, TX, 79968, USA.,Border Biomedical Research Center, The University of Texas At El Paso, El Paso, TX, 79968, USA
| | - Yoshira M Ayala-Marin
- Department of Biological Sciences, The University of Texas At El Paso, El Paso, TX, 79968, USA.,Border Biomedical Research Center, The University of Texas At El Paso, El Paso, TX, 79968, USA
| | - Amy J Arrieta
- Department of Biological Sciences, The University of Texas At El Paso, El Paso, TX, 79968, USA
| | - Robert A Kirken
- Department of Biological Sciences, The University of Texas At El Paso, El Paso, TX, 79968, USA. .,Border Biomedical Research Center, The University of Texas At El Paso, El Paso, TX, 79968, USA.
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14
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Luo Y, Guo J, Zhang P, Cheuk YC, Jiang Y, Wang J, Xu S, Rong R. Mesenchymal Stem Cell Protects Injured Renal Tubular Epithelial Cells by Regulating mTOR-Mediated Th17/Treg Axis. Front Immunol 2021; 12:684197. [PMID: 34122446 PMCID: PMC8194268 DOI: 10.3389/fimmu.2021.684197] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 05/10/2021] [Indexed: 12/20/2022] Open
Abstract
The increase in T helper 17 cell (Th17)-mediated pro-inflammatory response and decrease in regulatory T cell (Treg)-mediated anti-inflammatory effect aggravate renal tubular epithelial cell (RTEC) injury. However, increasing evidence indicated that mesenchymal stem cell (MSC) possessed the ability to control the imbalance between Th17 and Treg. Given that Th17 and Treg are derived from a common CD4+ T cell precursor, we summarize the current knowledge of MSC-mediated inhibition of the mammalian target of rapamycin (mTOR), which is a master regulator of CD4+ T cell polarization. During CD4+ T cell differentiation, mTOR signaling mediates Th17 and Treg differentiation via hypoxia-inducible factor-1α (HIF-1α)-dependent metabolic regulation and signaling pathway, as well as mTOR-mediated phosphorylation of signal transducer and activator of transcription (STAT) 3 and 5. Through interfering with mTOR signaling, MSC restrains CD4+ T cell differentiation into Th17, but in turn promotes Treg generation. Thus, this review indicates that MSC-mediated Th17-to-Treg polarization is expected to act as new immunotherapy for kidney injury.
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Affiliation(s)
- Yongsheng Luo
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Organ Transplantation, Shanghai, China
| | - Jingjing Guo
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Organ Transplantation, Shanghai, China
| | - Pingbao Zhang
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yin Celeste Cheuk
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Organ Transplantation, Shanghai, China
| | - Yamei Jiang
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Organ Transplantation, Shanghai, China
| | - Jiyan Wang
- Shanghai Key Laboratory of Organ Transplantation, Shanghai, China.,Shanghai Medical College, Fudan University, Shanghai, China
| | - Shihao Xu
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Organ Transplantation, Shanghai, China
| | - Ruiming Rong
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Organ Transplantation, Shanghai, China
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15
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MR cell size imaging with temporal diffusion spectroscopy. Magn Reson Imaging 2021; 77:109-123. [PMID: 33338562 PMCID: PMC7878439 DOI: 10.1016/j.mri.2020.12.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 12/10/2020] [Accepted: 12/13/2020] [Indexed: 02/07/2023]
Abstract
Cytological features such as cell size and intracellular morphology provide fundamental information on cell status and hence may provide specific information on changes that arise within biological tissues. Such information is usually obtained by invasive biopsy in current clinical practice, which suffers several well-known disadvantages. Recently, novel MRI methods such as IMPULSED (imaging microstructural parameters using limited spectrally edited diffusion) have been developed for direct measurements of mean cell size non-invasively. The IMPULSED protocol is based on using temporal diffusion spectroscopy (TDS) to combine measurements of water diffusion over a wide range of diffusion times to probe cellular microstructure over varying length scales. IMPULSED has been shown to provide rapid, robust, and reliable mapping of mean cell size and is suitable for clinical imaging. More recently, cell size distributions have also been derived by appropriate analyses of data acquired with IMPULSED or similar sequences, which thus provides MRI-cytometry. This review summarizes the basic principles, practical implementations, validations, and example applications of MR cell size imaging based on TDS and demonstrates how cytometric information can be used in various applications. In addition, the limitations and potential future directions of MR cytometry are identified including the diagnosis of nonalcoholic steatohepatitis of the liver and the assessment of treatment response of cancers.
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16
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Muñoz-Ruiz M, Pujol-Autonell I, Rhys H, Long HM, Greco M, Peakman M, Tree T, Hayday AC, Di Rosa F. Tracking immunodynamics by identification of S-G 2/M-phase T cells in human peripheral blood. J Autoimmun 2020; 112:102466. [PMID: 32414606 PMCID: PMC7527781 DOI: 10.1016/j.jaut.2020.102466] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 04/13/2020] [Accepted: 04/13/2020] [Indexed: 12/13/2022]
Abstract
The ready availability of human blood makes it the first choice for immuno-monitoring. However, this has been largely confined to static metrics, particularly resting T cell phenotypes. Conversely, dynamic assessments have mostly relied on cell stimulation in vitro which is subject to multiple variables. Here, immunodynamic insights from the peripheral blood are shown to be obtainable by applying a revised approach to cell-cycle analysis. Specifically, refined flow cytometric protocols were employed, assuring the reliable quantification of T cells in the S-G2/M phases of the cell-cycle (collectively termed "T Double S" for T cells in S-phase in Sanguine: in short "TDS" cells). Without protocol refinement, TDS could be either missed, as most of them layed out of the conventional lymphocyte gates, or confused with cell doublets artefactually displaying high DNA-content. To illustrate the nature of TDS cells, and their relationship to different immunodynamic scenarios, we examined them in healthy donors (HD); infectious mononucleosis (IM) patients versus asymptomatic EBV+ carriers; and recently-diagnosed T1D patients. TDS were reproducibly more abundant among CD8+ T cells and a defined subset of T-regulatory CD4+ T cells, and were substantially increased in IM and a subset of T1D patients. Of note, islet antigen-reactive TDS cell frequencies were associated with an aggressive T cell effector phenotype, suggesting that peripheral blood can reflect immune events within tissues in T1D, and possibly in other organ-specific autoimmune diseases. Our results suggest that tracking TDS cells may provide a widely applicable means of gaining insight into ongoing immune response dynamics in a variety of settings, including tissue immunopathologies where the peripheral blood has often not been considered insightful.
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Affiliation(s)
- Miguel Muñoz-Ruiz
- Immunosurveillance Laboratory, The Francis Crick Institute, London, UK
| | - Irma Pujol-Autonell
- Peter Gorer Department of Immunobiology, King's College London, London, UK; National Institute for Health Research (NIHR) Biomedical Research Center (BRC), Guy's and St Thomas' NHS Foundation Trust and King's College London, London, UK
| | - Hefin Rhys
- Flow Cytometry Science Technology Platform, The Francis Crick Institute, London, UK
| | - Heather M Long
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
| | - Maria Greco
- Genomics Equipment Park, The Francis Crick Institute, London, UK
| | - Mark Peakman
- Peter Gorer Department of Immunobiology, King's College London, London, UK; National Institute for Health Research (NIHR) Biomedical Research Center (BRC), Guy's and St Thomas' NHS Foundation Trust and King's College London, London, UK
| | - Tim Tree
- Peter Gorer Department of Immunobiology, King's College London, London, UK; National Institute for Health Research (NIHR) Biomedical Research Center (BRC), Guy's and St Thomas' NHS Foundation Trust and King's College London, London, UK
| | - Adrian C Hayday
- Immunosurveillance Laboratory, The Francis Crick Institute, London, UK; Peter Gorer Department of Immunobiology, King's College London, London, UK; National Institute for Health Research (NIHR) Biomedical Research Center (BRC), Guy's and St Thomas' NHS Foundation Trust and King's College London, London, UK
| | - Francesca Di Rosa
- Immunosurveillance Laboratory, The Francis Crick Institute, London, UK; Peter Gorer Department of Immunobiology, King's College London, London, UK; Institute of Molecular Biology and Pathology, National Research Council of Italy (CNR), Rome, Italy.
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17
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Jiang X, Dudzinski S, Beckermann KE, Young K, McKinley E, J McIntyre O, Rathmell JC, Xu J, Gore JC. MRI of tumor T cell infiltration in response to checkpoint inhibitor therapy. J Immunother Cancer 2020; 8:e000328. [PMID: 32581044 PMCID: PMC7312343 DOI: 10.1136/jitc-2019-000328] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/16/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Immune checkpoint inhibitors, the most widespread class of immunotherapies, have demonstrated unique response patterns that are not always adequately captured by traditional response criteria such as the Response Evaluation Criteria in Solid Tumors or even immune-specific response criteria. These response metrics rely on monitoring tumor growth, but an increase in tumor size and/or appearance after starting immunotherapy does not always represent tumor progression, but also can be a result of T cell infiltration and thus positive treatment response. Therefore, non-invasive and longitudinal monitoring of T cell infiltration are needed to assess the effects of immunotherapies such as checkpoint inhibitors. Here, we proposed an innovative concept that a sufficiently large influx of tumor infiltrating T cells, which have a smaller diameter than cancer cells, will change the diameter distribution and decrease the average size of cells within a volume to a degree that can be quantified by non-invasive MRI. METHODS We validated our hypothesis by studying tumor response to combination immune-checkpoint blockade (ICB) of anti-PD-1 and anti-CTLA4 in a mouse model of colon adenocarcinoma (MC38). The response was monitored longitudinally using Imaging Microstructural Parameters Using Limited Spectrally Edited Diffusion (IMPULSED), a diffusion MRI-based method which has been previously shown to non-invasively map changes in intracellular structure and cell sizes with the spatial resolution of MRI, in cell cultures and in animal models. Tumors were collected for immunohistochemical and flow cytometry analyzes immediately after the last imaging session. RESULTS Immunohistochemical analysis revealed that increased T cell infiltration of the tumors results in a decrease in mean cell size (eg, a 10% increase of CD3+ T cell fraction results a ~1 µm decrease in the mean cell size). IMPULSED showed that the ICB responders, mice with tumor volumes were less than 250 mm3 or had tumors with stable or decreased volumes, had significantly smaller mean cell sizes than both Control IgG-treated tumors and ICB non-responder tumors. CONCLUSIONS IMPULSED-derived cell size could potentially serve as an imaging marker for differentiating responsive and non-responsive tumors after checkpoint inhibitor therapies, a current clinical challenge that is not solved by simply monitoring tumor growth.
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Affiliation(s)
- Xiaoyu Jiang
- Vanderbilt University Institute of Imaging Science, Nashville, TN 37232, United States
- Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, TN 37232, United States
| | - Stephanie Dudzinski
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37232, United States
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, United States
| | - Kathryn E Beckermann
- Division of Hematology/Oncology, Vanderbilt University Medical Center, Nashville, TN 37232, United States
| | - Kirsten Young
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, United States
| | - Eliot McKinley
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, United States
| | - Oliver J McIntyre
- Vanderbilt University Institute of Imaging Science, Nashville, TN 37232, United States
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37232, United States
- Department of Cancer Biology, Vanderbilt University, Nashville, TN 37232, United States
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN 37232, United States
| | - Jeffrey C Rathmell
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232, United States
- Vanderbilt Center for Immunobiology, Vanderbilt University School of Medicine, Nashville, TN 37232, United States
| | - Junzhong Xu
- Vanderbilt University Institute of Imaging Science, Nashville, TN 37232, United States
- Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, TN 37232, United States
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37232, United States
- Department of Physics and Astronomy, Vanderbilt University, Nashville, TN 37232, United States
| | - John C Gore
- Vanderbilt University Institute of Imaging Science, Nashville, TN 37232, United States
- Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, TN 37232, United States
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37232, United States
- Department of Physics and Astronomy, Vanderbilt University, Nashville, TN 37232, United States
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18
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Bever KM, Borazanci EH, Thompson EA, Durham JN, Pinero K, Jameson GS, Vrana A, Liu M, Wilt C, Wu AA, Fu W, Wang H, Yin Y, Leal JP, Jesus-Acosta AD, Zheng L, Laheru DA, Von Hoff DD, Jaffee EM, Powell JD, Le DT. An exploratory study of metformin with or without rapamycin as maintenance therapy after induction chemotherapy in patients with metastatic pancreatic adenocarcinoma. Oncotarget 2020; 11:1929-1941. [PMID: 32523648 PMCID: PMC7260120 DOI: 10.18632/oncotarget.27586] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 04/14/2020] [Indexed: 12/16/2022] Open
Abstract
Purpose: Metformin combined with the mTOR inhibitor rapamycin showed potential synergistic anti-tumor activity in preclinical studies in pancreatic ductal adenocarcinoma (PDA). This phase 1b study (NCT02048384) was conducted to evaluate the feasibility and activity of metformin +/– rapamycin in the maintenance setting for unselected patients with metastatic PDA (mPDA) treated with chemotherapy. Materials and Methods: Eligible patients with stable or responding mPDA after ≥ 6 months on chemotherapy were randomized 1:1 to metformin alone (Arm A) or with rapamycin (Arm B), stratified by prior treatment with FOLFIRINOX. Fluorodeoxyglucose (FDG) PET scans and peripheral blood mononuclear cells were obtained for exploratory analyses. Results: 22 subjects (11 per arm) received treatment per protocol. Median PFS/OS were 3.5 and 13.2 months respectively, with 2 year OS rate of 37%; there were no differences between arms. No responses were observed by RECIST; however, decreases in FDG avidity and/or CA19-9 were observed in several long-term survivors. Treatment related adverse events of Grade ≥ 3 occurred in 0% vs 27% of patients in Arm A vs B and were asymptomatic hematologic or electrolyte abnormalities that were not clinically significant. Improved survival was associated with low baseline neutrophil: lymphocyte ratio, baseline lack of assessable disease by PET, and greater expansion of dendritic cells following treatment. Conclusions: Metformin +/– rapamycin maintenance for mPDA was well-tolerated and several patients achieved stable disease associated with exceptionally long survival. Further prospective studies are needed to clarify the role of these agents in the maintenance setting and to enhance patient selection for such approaches.
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Affiliation(s)
- Katherine M Bever
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA.,Bloomberg~Kimmel Institute for Cancer Immunotherapy at Johns Hopkins, Baltimore, MD, USA.,The Skip Viragh Center for Pancreas Cancer at Johns Hopkins, Baltimore, MD, USA.,Co-first authors
| | - Erkut H Borazanci
- Virginia Piper Cancer Center at HonorHealth, Scottsdale, AZ, USA.,Molecular Medicine Division, Translational Genomics Research Institute (TGen), Phoenix, AZ, USA.,Co-first authors
| | - Elizabeth A Thompson
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA.,Bloomberg~Kimmel Institute for Cancer Immunotherapy at Johns Hopkins, Baltimore, MD, USA
| | - Jennifer N Durham
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA.,Bloomberg~Kimmel Institute for Cancer Immunotherapy at Johns Hopkins, Baltimore, MD, USA
| | - Kimberly Pinero
- Virginia Piper Cancer Center at HonorHealth, Scottsdale, AZ, USA
| | - Gayle S Jameson
- Virginia Piper Cancer Center at HonorHealth, Scottsdale, AZ, USA.,Molecular Medicine Division, Translational Genomics Research Institute (TGen), Phoenix, AZ, USA
| | - Amber Vrana
- Virginia Piper Cancer Center at HonorHealth, Scottsdale, AZ, USA
| | - Meizheng Liu
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA.,Bloomberg~Kimmel Institute for Cancer Immunotherapy at Johns Hopkins, Baltimore, MD, USA
| | - Cara Wilt
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA.,Bloomberg~Kimmel Institute for Cancer Immunotherapy at Johns Hopkins, Baltimore, MD, USA.,The Skip Viragh Center for Pancreas Cancer at Johns Hopkins, Baltimore, MD, USA
| | - Annie A Wu
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA.,Bloomberg~Kimmel Institute for Cancer Immunotherapy at Johns Hopkins, Baltimore, MD, USA.,The Skip Viragh Center for Pancreas Cancer at Johns Hopkins, Baltimore, MD, USA
| | - Wei Fu
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA.,Division of Biostatistics and Bioinformatics, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA
| | - Hao Wang
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA.,Bloomberg~Kimmel Institute for Cancer Immunotherapy at Johns Hopkins, Baltimore, MD, USA.,Division of Biostatistics and Bioinformatics, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA
| | - Yafu Yin
- Department of Nuclear Medicine, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai City, China
| | - Jeffrey P Leal
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Ana De Jesus-Acosta
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA.,The Skip Viragh Center for Pancreas Cancer at Johns Hopkins, Baltimore, MD, USA
| | - Lei Zheng
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA.,Bloomberg~Kimmel Institute for Cancer Immunotherapy at Johns Hopkins, Baltimore, MD, USA.,The Skip Viragh Center for Pancreas Cancer at Johns Hopkins, Baltimore, MD, USA
| | - Daniel A Laheru
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA.,Bloomberg~Kimmel Institute for Cancer Immunotherapy at Johns Hopkins, Baltimore, MD, USA.,The Skip Viragh Center for Pancreas Cancer at Johns Hopkins, Baltimore, MD, USA
| | - Daniel D Von Hoff
- Virginia Piper Cancer Center at HonorHealth, Scottsdale, AZ, USA.,Molecular Medicine Division, Translational Genomics Research Institute (TGen), Phoenix, AZ, USA
| | - Elizabeth M Jaffee
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA.,Bloomberg~Kimmel Institute for Cancer Immunotherapy at Johns Hopkins, Baltimore, MD, USA.,The Skip Viragh Center for Pancreas Cancer at Johns Hopkins, Baltimore, MD, USA
| | - Jonathan D Powell
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA.,Bloomberg~Kimmel Institute for Cancer Immunotherapy at Johns Hopkins, Baltimore, MD, USA
| | - Dung T Le
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA.,Bloomberg~Kimmel Institute for Cancer Immunotherapy at Johns Hopkins, Baltimore, MD, USA.,The Skip Viragh Center for Pancreas Cancer at Johns Hopkins, Baltimore, MD, USA
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19
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Yao K, Rochman ND, Sun SX. CTRL - a label-free artificial intelligence method for dynamic measurement of single-cell volume. J Cell Sci 2020; 133:jcs.245050. [PMID: 32094267 DOI: 10.1242/jcs.245050] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 02/10/2020] [Indexed: 12/27/2022] Open
Abstract
Measuring the physical size of a cell is valuable in understanding cell growth control. Current single-cell volume measurement methods for mammalian cells are labor intensive, inflexible and can cause cell damage. We introduce CTRL: Cell Topography Reconstruction Learner, a label-free technique incorporating the deep learning algorithm and the fluorescence exclusion method for reconstructing cell topography and estimating mammalian cell volume from differential interference contrast (DIC) microscopy images alone. The method achieves quantitative accuracy, requires minimal sample preparation, and applies to a wide range of biological and experimental conditions. The method can be used to track single-cell volume dynamics over arbitrarily long time periods. For HT1080 fibrosarcoma cells, we observe that the cell size at division is positively correlated with the cell size at birth (sizer), and there is a noticeable reduction in cell size fluctuations at 25% completion of the cell cycle in HT1080 fibrosarcoma cells.
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Affiliation(s)
- Kai Yao
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA.,Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Nash D Rochman
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA.,Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Sean X Sun
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA .,Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA.,Physical Sciences in Oncology Center (PSOC), Johns Hopkins University, Baltimore, MD 21218, USA
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20
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Crepeau RL, Ford ML. Programmed T cell differentiation: Implications for transplantation. Cell Immunol 2020; 351:104099. [PMID: 32247511 DOI: 10.1016/j.cellimm.2020.104099] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/27/2020] [Accepted: 03/27/2020] [Indexed: 12/27/2022]
Abstract
While T cells play a critical role in protective immunity against infection, they are also responsible for graft rejection in the setting of transplantation. T cell differentiation is regulated by both intrinsic transcriptional pathways as well as extrinsic factors such as antigen encounter and the cytokine milieu. Herein, we review recent discoveries in the transcriptional regulation of T cell differentiation and their impact on the field of transplantation. Recent studies uncovering context-dependent differentiation programs that differ in the setting of infection or transplantation will also be discussed. Understanding the key transcriptional pathways that underlie T cell responses in transplantation has important clinical implications, including development of novel therapeutic agents to mitigate graft rejection.
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Affiliation(s)
- Rebecca L Crepeau
- Emory Transplant Center, Department of Surgery, Emory University, 101 Woodruff Circle, Suite 5208, Atlanta, GA 30322, United States
| | - Mandy L Ford
- Emory Transplant Center, Department of Surgery, Emory University, 101 Woodruff Circle, Suite 5208, Atlanta, GA 30322, United States.
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21
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Galeano Niño JL, Tay SS, Tearle JLE, Xie J, Govendir MA, Kempe D, Mazalo J, Drew AP, Colakoglu F, Kummerfeld SK, Proud CG, Biro M. The Lifeact-EGFP mouse is a translationally controlled fluorescent reporter of T cell activation. J Cell Sci 2020; 133:jcs238014. [PMID: 32041902 DOI: 10.1242/jcs.238014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 02/04/2020] [Indexed: 12/11/2022] Open
Abstract
It has become increasingly evident that T cell functions are subject to translational control in addition to transcriptional regulation. Here, by using live imaging of CD8+ T cells isolated from the Lifeact-EGFP mouse, we show that T cells exhibit a gain in fluorescence intensity following engagement of cognate tumour target cells. The GFP signal increase is governed by Erk1/2-dependent distal T cell receptor (TCR) signalling and its magnitude correlates with IFN-γ and TNF-α production, which are hallmarks of T cell activation. Enhanced fluorescence was due to increased translation of Lifeact-EGFP protein, without an associated increase in its mRNA. Activation-induced gains in fluorescence were also observed in naïve and CD4+ T cells from the Lifeact-EGFP reporter, and were readily detected by both flow cytometry and live cell microscopy. This unique, translationally controlled reporter of effector T cell activation simultaneously enables tracking of cell morphology, F-actin dynamics and activation state in individual migrating T cells. It is a valuable addition to the limited number of reporters of T cell dynamics and activation, and opens the door to studies of translational activity and heterogeneities in functional T cell responses in situ.
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Affiliation(s)
- Jorge Luis Galeano Niño
- EMBL Australia, Single Molecule Science Node, School of Medical Sciences, University of New South Wales, Sydney, NSW 2052, Australia
| | - Szun S Tay
- EMBL Australia, Single Molecule Science Node, School of Medical Sciences, University of New South Wales, Sydney, NSW 2052, Australia
| | - Jacqueline L E Tearle
- EMBL Australia, Single Molecule Science Node, School of Medical Sciences, University of New South Wales, Sydney, NSW 2052, Australia
| | - Jianling Xie
- Lifelong Health Theme, South Australian Health and Medical Research Institute, North Terrace, Adelaide, SA 5000, Australia
| | - Matt A Govendir
- EMBL Australia, Single Molecule Science Node, School of Medical Sciences, University of New South Wales, Sydney, NSW 2052, Australia
| | - Daryan Kempe
- EMBL Australia, Single Molecule Science Node, School of Medical Sciences, University of New South Wales, Sydney, NSW 2052, Australia
| | - Jessica Mazalo
- EMBL Australia, Single Molecule Science Node, School of Medical Sciences, University of New South Wales, Sydney, NSW 2052, Australia
| | - Alexander P Drew
- Kinghorn Centre for Clinical Genomics, Garvan Institute of Medical Research, Sydney, NSW, Australia
| | - Feyza Colakoglu
- EMBL Australia, Single Molecule Science Node, School of Medical Sciences, University of New South Wales, Sydney, NSW 2052, Australia
| | - Sarah K Kummerfeld
- Kinghorn Centre for Clinical Genomics, Garvan Institute of Medical Research, Sydney, NSW, Australia
- St Vincent's Clinical School, University of New South Wales, Sydney, NSW, Australia
| | - Christopher G Proud
- Lifelong Health Theme, South Australian Health and Medical Research Institute, North Terrace, Adelaide, SA 5000, Australia
- School of Biological Sciences, University of Adelaide, Frome Road, Adelaide
| | - Maté Biro
- EMBL Australia, Single Molecule Science Node, School of Medical Sciences, University of New South Wales, Sydney, NSW 2052, Australia
- ARC Centre of Excellence in Advanced Molecular Imaging, University of New South Wales, Sydney, NSW 2052, Australia
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22
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O'Sullivan D. The metabolic spectrum of memory T cells. Immunol Cell Biol 2019; 97:636-646. [DOI: 10.1111/imcb.12274] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 05/13/2019] [Accepted: 05/22/2019] [Indexed: 12/27/2022]
Affiliation(s)
- David O'Sullivan
- Department of Immunometabolism Max Planck Institute of Immunobiology and Epigenetics Freiburg Germany
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23
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Couturier J, Orozco AF, Liu H, Budhiraja S, Siwak EB, Nehete PN, Sastry KJ, Rice AP, Lewis DE. Regulation of cyclin T1 during HIV replication and latency establishment in human memory CD4 T cells. Virol J 2019; 16:22. [PMID: 30786885 PMCID: PMC6381639 DOI: 10.1186/s12985-019-1128-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 02/12/2019] [Indexed: 01/30/2023] Open
Abstract
Background The regulatory cyclin, Cyclin T1 (CycT1), is a host factor essential for HIV-1 replication in CD4 T cells and macrophages. The importance of CycT1 and the Positive Transcription Elongation Factor b (P-TEFb) complex for HIV replication is well-established, but regulation of CycT1 expression and protein levels during HIV replication and latency establishment in CD4 T cells is less characterized. Methods To better define the regulation of CycT1 levels during HIV replication in CD4 T cells, multiparameter flow cytometry was utilized to study the interaction between HIV replication (intracellular p24) and CycT1 of human peripheral blood memory CD4 T cells infected with HIV in vitro. CycT1 was further examined in CD4 T cells of human lymph nodes. Results In activated (CD3+CD28 costimulation) uninfected blood memory CD4 T cells, CycT1 was most significantly upregulated in maximally activated (CD69+CD25+ and HLA.DR+CD38+) cells. In memory CD4 T cells infected with HIV in vitro, two distinct infected populations of p24+CycT1+ and p24+CycT1- cells were observed during 7 days infection, suggestive of different phases of productive HIV replication and subsequent latency establishment. Intriguingly, p24+CycT1- cells were the predominant infected population in activated CD4 T cells, raising the possibility that productively infected cells may transition into latency subsequent to CycT1 downregulation. Additionally, when comparing infected p24+ cells to bystander uninfected p24- cells (after bulk HIV infections), HIV replication significantly increased T cell activation (CD69, CD25, HLA.DR, CD38, and Ki67) without concomitantly increasing CycT1 protein levels, possibly due to hijacking of P-TEFb by the viral Tat protein. Lastly, CycT1 was constitutively expressed at higher levels in lymph node CD4 T cells compared to blood T cells, potentially enhancing latency generation in lymphoid tissues. Conclusions CycT1 is most highly upregulated in maximally activated memory CD4 T cells as expected, but may become less associated with T cell activation during HIV replication. The progression into latency may further be predicated by substantial generation of p24+CycT1- cells during HIV replication. Electronic supplementary material The online version of this article (10.1186/s12985-019-1128-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jacob Couturier
- Division of Infectious Diseases, Department of Internal Medicine, University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Aaron F Orozco
- Division of Infectious Diseases, Department of Internal Medicine, University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Hongbing Liu
- Department of Molecular Virology & Microbiology, Baylor College of Medicine, Houston, TX, USA
| | - Sona Budhiraja
- Department of Molecular Virology & Microbiology, Baylor College of Medicine, Houston, TX, USA
| | - Edward B Siwak
- Department of Molecular Virology & Microbiology, Baylor College of Medicine, Houston, TX, USA
| | - Pramod N Nehete
- Department of Veterinary Sciences, The University of Texas MD Anderson Cancer Center, Bastrop, TX, USA
| | - K Jagannadha Sastry
- Department of Immunology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Andrew P Rice
- Department of Molecular Virology & Microbiology, Baylor College of Medicine, Houston, TX, USA
| | - Dorothy E Lewis
- Division of Infectious Diseases, Department of Internal Medicine, University of Texas Health Science Center at Houston, Houston, TX, 77030, USA.
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24
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Ligons DL, Hwang S, Waickman AT, Park JY, Luckey MA, Park JH. RORγt limits the amount of the cytokine receptor γc through the prosurvival factor Bcl-x L in developing thymocytes. Sci Signal 2018; 11:11/545/eaam8939. [PMID: 30154103 DOI: 10.1126/scisignal.aam8939] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The cytokine receptor subunit γc provides critical signals for T cell survival and differentiation. We investigated the molecular mechanism that controls the cell surface abundance of γc during T cell development in the thymus. We found that the amount of γc was low on CD4+CD8+ double-positive (DP) thymocytes before their positive selection to become mature T cells. The transcription factor RORγt was abundant in immature DP thymocytes, and its loss resulted in an increase in the abundance of surface γc, specifically on preselection DP cells. Rather than directly repressing expression of the gene encoding γc, RORγt acted through the antiapoptotic protein Bcl-xL to reduce the abundance of surface γc, which resulted in decreased cytokine signaling and was associated with inhibition of cell metabolism and mitochondrial biogenesis. Accordingly, overexpression of Bcl-xL in RORγt-deficient thymocytes restored the amount of surface γc to that present on normal preselection DP cells. Together, these data highlight a previously unappreciated role for RORγt and Bcl-xL in limiting γc abundance at the cell surface and reveal a signaling circuit in which survival factors control cytokine signaling by limiting the abundance and surface distribution of a receptor subunit shared by several cytokines.
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Affiliation(s)
- Davinna L Ligons
- Experimental Immunology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - SuJin Hwang
- Experimental Immunology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Adam T Waickman
- Experimental Immunology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Joo-Young Park
- Experimental Immunology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Megan A Luckey
- Experimental Immunology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Jung-Hyun Park
- Experimental Immunology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.
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25
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Sun IH, Oh MH, Zhao L, Patel CH, Arwood ML, Xu W, Tam AJ, Blosser RL, Wen J, Powell JD. mTOR Complex 1 Signaling Regulates the Generation and Function of Central and Effector Foxp3 + Regulatory T Cells. THE JOURNAL OF IMMUNOLOGY 2018; 201:481-492. [PMID: 29884702 DOI: 10.4049/jimmunol.1701477] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 05/10/2018] [Indexed: 01/07/2023]
Abstract
The mechanistic/mammalian target of rapamycin (mTOR) has emerged as a critical integrator of signals from the immune microenvironment capable of regulating T cell activation, differentiation, and function. The precise role of mTOR in the control of regulatory T cell (Treg) differentiation and function is complex. Pharmacologic inhibition and genetic deletion of mTOR promotes the generation of Tregs even under conditions that would normally promote generation of effector T cells. Alternatively, mTOR activity has been observed to be increased in Tregs, and the genetic deletion of the mTOR complex 1 (mTORC1)-scaffold protein Raptor inhibits Treg function. In this study, by employing both pharmacologic inhibitors and genetically altered T cells, we seek to clarify the role of mTOR in Tregs. Our studies demonstrate that inhibition of mTOR during T cell activation promotes the generation of long-lived central Tregs with a memory-like phenotype in mice. Metabolically, these central memory Tregs possess enhanced spare respiratory capacity, similar to CD8+ memory cells. Alternatively, the generation of effector Tregs (eTregs) requires mTOR function. Indeed, genetic deletion of Rptor leads to the decreased expression of ICOS and PD-1 on the eTregs. Overall, our studies define a subset of mTORC1hi eTregs and mTORC1lo central Tregs.
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Affiliation(s)
- Im-Hong Sun
- Bloomberg∼Kimmel Institute for Cancer Immunotherapy, Sidney Kimmel Comprehensive Cancer Research Center, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287
| | - Min-Hee Oh
- Bloomberg∼Kimmel Institute for Cancer Immunotherapy, Sidney Kimmel Comprehensive Cancer Research Center, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287
| | - Liang Zhao
- Bloomberg∼Kimmel Institute for Cancer Immunotherapy, Sidney Kimmel Comprehensive Cancer Research Center, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287
| | - Chirag H Patel
- Bloomberg∼Kimmel Institute for Cancer Immunotherapy, Sidney Kimmel Comprehensive Cancer Research Center, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287
| | - Matthew L Arwood
- Bloomberg∼Kimmel Institute for Cancer Immunotherapy, Sidney Kimmel Comprehensive Cancer Research Center, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287
| | - Wei Xu
- Bloomberg∼Kimmel Institute for Cancer Immunotherapy, Sidney Kimmel Comprehensive Cancer Research Center, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287
| | - Ada J Tam
- Bloomberg∼Kimmel Institute for Cancer Immunotherapy, Sidney Kimmel Comprehensive Cancer Research Center, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287
| | - Richard L Blosser
- Bloomberg∼Kimmel Institute for Cancer Immunotherapy, Sidney Kimmel Comprehensive Cancer Research Center, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287
| | - Jiayu Wen
- Bloomberg∼Kimmel Institute for Cancer Immunotherapy, Sidney Kimmel Comprehensive Cancer Research Center, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287
| | - Jonathan D Powell
- Bloomberg∼Kimmel Institute for Cancer Immunotherapy, Sidney Kimmel Comprehensive Cancer Research Center, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287
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26
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Wang C, Edilova MI, Wagar LE, Mujib S, Singer M, Bernard NF, Croughs T, Lederman MM, Sereti I, Fischl MA, Kremmer E, Ostrowski M, Routy JP, Watts TH. Effect of IL-7 Therapy on Phospho-Ribosomal Protein S6 and TRAF1 Expression in HIV-Specific CD8 T Cells in Patients Receiving Antiretroviral Therapy. THE JOURNAL OF IMMUNOLOGY 2017; 200:558-564. [PMID: 29222166 DOI: 10.4049/jimmunol.1601254] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 11/07/2017] [Indexed: 12/17/2022]
Abstract
IL-7 therapy has been evaluated in patients who do not regain normal CD4 T cell counts after virologically successful antiretroviral therapy. IL-7 increases total circulating CD4 and CD8 T cell counts; however, its effect on HIV-specific CD8 T cells has not been fully examined. TRAF1, a prosurvival signaling adaptor required for 4-1BB-mediated costimulation, is lost from chronically stimulated virus-specific CD8 T cells with progression of HIV infection in humans and during chronic lymphocytic choriomeningitis infection in mice. Previous results showed that IL-7 can restore TRAF1 expression in virus-specific CD8 T cells in mice, rendering them sensitive to anti-4-1BB agonist therapy. In this article, we show that IL-7 therapy in humans increases the number of circulating HIV-specific CD8 T cells. For a subset of patients, we also observed an increased frequency of TRAF1+ HIV-specific CD8 T cells 10 wk after completion of IL-7 treatment. IL-7 treatment increased levels of phospho-ribosomal protein S6 in HIV-specific CD8 T cells, suggesting increased activation of the metabolic checkpoint kinase mTORC1. Thus, IL-7 therapy in antiretroviral therapy-treated patients induces sustained changes in the number and phenotype of HIV-specific T cells.
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Affiliation(s)
- Chao Wang
- Department of Immunology, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Maria I Edilova
- Department of Immunology, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Lisa E Wagar
- Department of Immunology, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Shariq Mujib
- Institute of Medical Science, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | | | - Nicole F Bernard
- Chronic Viral Illness Service, Division of Clinical Immunology, Research Institute, McGill University Health Centre, Montreal, Quebec H3G 1A4, Canada
| | - Thérèse Croughs
- Agence Nationale de Recherches sur le SIDA, 75013 Paris, France
| | - Michael M Lederman
- Center for AIDS Research, Case Western Reserve University School of Medicine, Cleveland, OH 44106
| | - Irini Sereti
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Margaret A Fischl
- Miami Center for AIDS Research, University of Miami School of Medicine, Miami, FL 33136
| | - Elisabeth Kremmer
- Helmholtz Zentrum München, German Research Centre for Environmental Health, 81377 Munich, Germany
| | - Mario Ostrowski
- Department of Immunology, University of Toronto, Toronto, Ontario M5S 1A8, Canada.,Keenan Research Centre for Biomedical Science of St. Michael's Hospital, Toronto, Ontario M5B1W8, Canada; and
| | - Jean-Pierre Routy
- Division of Hematology and Immunodeficiency Service, McGill University, Montreal, Quebec H3A 1A3, Canada
| | - Tania H Watts
- Department of Immunology, University of Toronto, Toronto, Ontario M5S 1A8, Canada;
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27
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SNX27 links DGKζ to the control of transcriptional and metabolic programs in T lymphocytes. Sci Rep 2017; 7:16361. [PMID: 29180720 PMCID: PMC5703713 DOI: 10.1038/s41598-017-16370-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 11/10/2017] [Indexed: 01/10/2023] Open
Abstract
Sorting nexin 27 (SNX27) recycles PSD-95, Dlg1, ZO-1 (PDZ) domain-interacting membrane proteins and is essential to sustain adequate brain functions. Here we define a fundamental SNX27 function in T lymphocytes controlling antigen-induced transcriptional activation and metabolic reprogramming. SNX27 limits the activation of diacylglycerol (DAG)-based signals through its high affinity PDZ-interacting cargo DAG kinase ζ (DGKζ). SNX27 silencing in human T cells enhanced T cell receptor (TCR)-stimulated activator protein 1 (AP-1)- and nuclear factor κB (NF-κB)-mediated transcription. Transcription did not increase upon DGKζ silencing, suggesting that DGKζ function is dependent on SNX27. The enhanced transcriptional activation in SNX27-silenced cells contrasted with defective activation of the mammalian target of rapamycin (mTOR) pathway. The analysis of Snx27−/− mice supported a role for SNX27 in the control of T cell growth. This study broadens our understanding of SNX27 as an integrator of lipid-based signals with the control of transcription and metabolic pathways.
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28
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Koblischke M, Mackroth MS, Schwaiger J, Fae I, Fischer G, Stiasny K, Heinz FX, Aberle JH. Protein structure shapes immunodominance in the CD4 T cell response to yellow fever vaccination. Sci Rep 2017; 7:8907. [PMID: 28827760 PMCID: PMC5566484 DOI: 10.1038/s41598-017-09331-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 07/17/2017] [Indexed: 12/25/2022] Open
Abstract
The live attenuated yellow fever (YF) vaccine is a highly effective human vaccine and induces long-term protective neutralizing antibodies directed against the viral envelope protein E. The generation of such antibodies requires the help of CD4 T cells which recognize peptides derived from proteins in virus particles internalized and processed by E-specific B cells. The CD4 T helper cell response is restricted to few immunodominant epitopes, but the mechanisms of their selection are largely unknown. Here, we report that CD4 T cell responses elicited by the YF-17D vaccine are focused to hotspots of two helices of the viral capsid protein and to exposed strands and loops of E. We found that the locations of immunodominant epitopes within three-dimensional protein structures exhibit a high degree of overlap between YF virus and the structurally homologous flavivirus tick-borne encephalitis virus, although amino acid sequence identity of the epitope regions is only 15-45%. The restriction of epitopes to exposed E protein surfaces and their strikingly similar positioning within proteins of distantly related flaviviruses are consistent with a strong influence of protein structure that shapes CD4 T cell responses and provide leads for a rational design of immunogens for vaccination.
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Affiliation(s)
| | - Maria S Mackroth
- Department of Medicine I, Division of Infectious Diseases and Tropical Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Julia Schwaiger
- Center for Virology, Medical University of Vienna, Vienna, Austria
| | - Ingrid Fae
- Department of Blood Group Serology and Transfusion Medicine, Medical University of Vienna, Vienna, Austria
| | - Gottfried Fischer
- Department of Blood Group Serology and Transfusion Medicine, Medical University of Vienna, Vienna, Austria
| | - Karin Stiasny
- Center for Virology, Medical University of Vienna, Vienna, Austria
| | - Franz X Heinz
- Center for Virology, Medical University of Vienna, Vienna, Austria
| | - Judith H Aberle
- Center for Virology, Medical University of Vienna, Vienna, Austria.
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29
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Reactive oxygen species are required for driving efficient and sustained aerobic glycolysis during CD4+ T cell activation. PLoS One 2017; 12:e0175549. [PMID: 28426686 PMCID: PMC5398529 DOI: 10.1371/journal.pone.0175549] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 03/28/2017] [Indexed: 01/08/2023] Open
Abstract
The immune system is necessary for protecting against various pathogens. However, under certain circumstances, self-reactive immune cells can drive autoimmunity, like that exhibited in type 1 diabetes (T1D). CD4+ T cells are major contributors to the immunopathology in T1D, and in order to drive optimal T cell activation, third signal reactive oxygen species (ROS) must be present. However, the role ROS play in mediating this process remains to be further understood. Recently, cellular metabolic programs have been shown to dictate the function and fate of immune cells, including CD4+ T cells. During activation, CD4+ T cells must transition metabolically from oxidative phosphorylation to aerobic glycolysis to support proliferation and effector function. As ROS are capable of modulating cellular metabolism in other models, we sought to understand if blocking ROS also regulates CD4+ T cell activation and effector function by modulating T cell metabolism. To do so, we utilized an ROS scavenging and potent antioxidant manganese metalloporphyrin (MnP). Our results demonstrate that redox modulation during activation regulates the mTOR/AMPK axis by maintaining AMPK activation, resulting in diminished mTOR activation and reduced transition to aerobic glycolysis in diabetogenic splenocytes. These results correlated with decreased Myc and Glut1 upregulation, reduced glucose uptake, and diminished lactate production. In an adoptive transfer model of T1D, animals treated with MnP demonstrated delayed diabetes progression, concurrent with reduced CD4+ T cell activation. Our results demonstrate that ROS are required for driving and sustaining T cell activation-induced metabolic reprogramming, and further support ROS as a target to minimize aberrant immune responses in autoimmunity.
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30
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Chornoguz O, Hagan RS, Haile A, Arwood ML, Gamper CJ, Banerjee A, Powell JD. mTORC1 Promotes T-bet Phosphorylation To Regulate Th1 Differentiation. THE JOURNAL OF IMMUNOLOGY 2017; 198:3939-3948. [PMID: 28424242 DOI: 10.4049/jimmunol.1601078] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 03/21/2017] [Indexed: 12/31/2022]
Abstract
CD4+ T cells lacking the mTORC1 activator Rheb fail to secrete IFN-γ under Th1 polarizing conditions. We hypothesized that this phenotype is due to defects in regulation of the canonical Th1 transcription factor T-bet at the level of protein phosphorylation downstream of mTORC1. To test this hypothesis, we employed targeted mass-spectrometry proteomic analysis-multiple reaction monitoring mass spectrometry. We used this method to detect and quantify predicted phosphopeptides derived from T-bet. By analyzing activated murine wild-type and Rheb-deficient CD4+ T cells, as well as murine CD4+ T cells activated in the presence of rapamycin, a pharmacologic inhibitor of mTORC1, we were able to identify six T-bet phosphorylation sites. Five of these are novel, and four sites are consistently dephosphorylated in both Rheb-deficient CD4+ T cells and T cells treated with rapamycin, suggesting mTORC1 signaling controls their phosphorylation. Alanine mutagenesis of each of the six phosphorylation sites was tested for the ability to impair IFN-γ expression. Single phosphorylation site mutants still support induction of IFN-γ expression; however, simultaneous mutation of three of the mTORC1-dependent sites results in significantly reduced IFN-γ expression. The reduced activity of the triple mutant T-bet is associated with its failure to recruit chromatin remodeling complexes to the Ifng gene promoter. These results establish a novel mechanism by which mTORC1 regulates Th1 differentiation, through control of T-bet phosphorylation.
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Affiliation(s)
- Olesya Chornoguz
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287.,Bloomberg-Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University School of Medicine, Baltimore, MD 21287.,Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, MD 21287.,Janssen Research and Development, Department of Biologics Research, Spring House, PA 19477
| | - Robert S Hagan
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287.,Bloomberg-Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University School of Medicine, Baltimore, MD 21287.,Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, MD 21287.,Division of Pulmonary Diseases and Critical Care Medicine, Department of Medicine, University of North Carolina, Chapel Hill, NC 27599
| | - Azeb Haile
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287.,Bloomberg-Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University School of Medicine, Baltimore, MD 21287.,Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, MD 21287
| | - Matthew L Arwood
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287.,Bloomberg-Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University School of Medicine, Baltimore, MD 21287.,Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, MD 21287
| | - Christopher J Gamper
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287.,Bloomberg-Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University School of Medicine, Baltimore, MD 21287.,Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, MD 21287
| | - Arnob Banerjee
- Program in Oncology, University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, MD 21201; and.,Department of Medicine, University of Maryland School of Medicine, Baltimore, MD 21201
| | - Jonathan D Powell
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287; .,Bloomberg-Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University School of Medicine, Baltimore, MD 21287.,Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, MD 21287
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31
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Gibson JN, Beesetty P, Sulentic C, Kozak JA. Rapid Quantification of Mitogen-induced Blastogenesis in T Lymphocytes for Identifying Immunomodulatory Drugs. J Vis Exp 2016. [PMID: 28060354 PMCID: PMC5226628 DOI: 10.3791/55212] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Lymphocyte proliferation in response to antigenic or mitogenic stimulation is a readily quantifiable phenomenon useful for testing immunomodulatory (i.e., immunosuppressive or immunostimulatory) chemical compounds and biologics. One of the earliest steps during mitogenesis is cell enlargement or blastogenic transformation, whereupon the cell volume increases before division. It is usually detectable in the first several hours of T-lymphocyte stimulation. Here, we describe a rapid method to quantify blastogenesis in T lymphocytes isolated from mouse spleens and human peripheral blood mononuclear cells (PBMCs) using an automated cell counter. Various commonly used proliferation assays for the most part are laborious and only reflect the overall population effect rather than individual cellular effects within a population. In contrast, the presented automated cell counter assay provides rapid, direct, and precise measurements of cell diameters that can be used for assessing the effectiveness of various mitogens and immunomodulatory drugs in vitro.
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Affiliation(s)
- Jennifer N Gibson
- Department of Neuroscience, Cell Biology and Physiology, Boonshoft School of Medicine, Wright State University
| | - Pavani Beesetty
- Department of Neuroscience, Cell Biology and Physiology, Boonshoft School of Medicine, Wright State University
| | - Courtney Sulentic
- Department of Pharmacology and Toxicology, Boonshoft School of Medicine, Wright State University
| | - J Ashot Kozak
- Department of Neuroscience, Cell Biology and Physiology, Boonshoft School of Medicine, Wright State University;
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32
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Metabolic pathways in T cell activation and lineage differentiation. Semin Immunol 2016; 28:514-524. [PMID: 27825556 DOI: 10.1016/j.smim.2016.10.009] [Citation(s) in RCA: 308] [Impact Index Per Article: 38.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 10/07/2016] [Accepted: 10/14/2016] [Indexed: 12/13/2022]
Abstract
Recent advances in the field of immunometabolism support the concept that fundamental processes in T cell biology, such as TCR-mediated activation and T helper lineage differentiation, are closely linked to changes in the cellular metabolic programs. Although the major task of the intermediate metabolism is to provide the cell with a constant supply of energy and molecular precursors for the production of biomolecules, the dynamic regulation of metabolic pathways also plays an active role in shaping T cell responses. Key metabolic processes such as glycolysis, fatty acid and mitochondrial metabolism are now recognized as crucial players in T cell activation and differentiation, and their modulation can differentially affect the development of T helper cell lineages. In this review, we describe the diverse metabolic processes that T cells engage during their life cycle from naïve towards effector and memory T cells. We consider in particular how the cellular metabolism may actively support the function of T cells in their different states. Moreover, we discuss how molecular regulators such as mTOR or AMPK link environmental changes to adaptations in the cellular metabolism and elucidate the consequences on T cell differentiation and function.
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33
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Pai C, Walsh CM, Fruman DA. Context-Specific Function of S6K2 in Th Cell Differentiation. THE JOURNAL OF IMMUNOLOGY 2016; 197:3049-3058. [PMID: 27613697 DOI: 10.4049/jimmunol.1600167] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 08/11/2016] [Indexed: 12/29/2022]
Abstract
The mammalian target of rapamycin (mTOR) is essential for Th cell proliferation and effector differentiation, making the mTOR signaling network an attractive immunomodulatory target for autoimmune-related diseases. Although direct targeting of mTOR complex-1 (mTORC1) with rapamycin can provide clinical benefit, targeting downstream enzymes has the potential to offer more selective immunosuppression. In this study, we evaluated p70 ribosomal protein S6 Kinase 2 (S6K2), a downstream effector of mTORC1, for its role in T cell function and autoimmunity. S6K2 is a direct substrate of mTORC1, with a potential role in Th17 differentiation suggested by biochemical studies. Using a genetic approach with S6K2 knockout mice, we found that S6K2 loss reduces Th17 skewing and increases regulatory T cell differentiation in vitro when cultured in RPMI 1640 media. However, S6K2 was dispensable for Th17 differentiation in IMDM. In an in vivo experimental autoimmune encephalomyelitis model in which rapamycin suppresses disease, S6K2 knockout mice did not exhibit differences in clinical score or Th17 differentiation. These results suggest that S6K2 is dispensable for Th17-driven autoimmunity and highlight how distinct experimental conditions can produce significantly different results in T cell differentiation.
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Affiliation(s)
- Christine Pai
- Department of Molecular Biology and Biochemistry, Institute for Immunology, University of California, Irvine, Irvine, CA 92697
| | - Craig M Walsh
- Department of Molecular Biology and Biochemistry, Institute for Immunology, University of California, Irvine, Irvine, CA 92697
| | - David A Fruman
- Department of Molecular Biology and Biochemistry, Institute for Immunology, University of California, Irvine, Irvine, CA 92697
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34
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So L, Lee J, Palafox M, Mallya S, Woxland CG, Arguello M, Truitt ML, Sonenberg N, Ruggero D, Fruman DA. The 4E-BP-eIF4E axis promotes rapamycin-sensitive growth and proliferation in lymphocytes. Sci Signal 2016; 9:ra57. [PMID: 27245614 DOI: 10.1126/scisignal.aad8463] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Rapamycin has been used as a clinical immunosuppressant for many years; however, the molecular basis for its selective effects on lymphocytes remains unclear. We investigated the role of two canonical effectors of the mammalian target of rapamycin (mTOR): ribosomal S6 kinases (S6Ks) and eukaryotic initiation factor 4E (eIF4E)-binding proteins (4E-BPs). S6Ks are thought to regulate cell growth (increase in cell size), and 4E-BPs are thought to control proliferation (increase in cell number), with mTORC1 signaling serving to integrate these processes. However, we found that the 4E-BP-eIF4E signaling axis controlled both the growth and proliferation of lymphocytes, processes for which the S6Ks were dispensable. Furthermore, rapamycin disrupted eIF4E function selectively in lymphocytes, which was due to the increased abundance of 4E-BP2 relative to that of 4E-BP1 in these cells and the greater sensitivity of 4E-BP2 to rapamycin. Together, our findings suggest that the 4E-BP-eIF4E axis is uniquely rapamycin-sensitive in lymphocytes and that this axis promotes clonal expansion of these cells by coordinating growth and proliferation.
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Affiliation(s)
- Lomon So
- Department of Molecular Biology and Biochemistry, and Institute for Immunology, University of California, Irvine, Irvine, CA 92697, USA
| | - Jongdae Lee
- Department of Molecular Biology and Biochemistry, and Institute for Immunology, University of California, Irvine, Irvine, CA 92697, USA. Department of Medicine, University of California, San Diego, San Diego, CA 92103, USA
| | - Miguel Palafox
- Department of Molecular Biology and Biochemistry, and Institute for Immunology, University of California, Irvine, Irvine, CA 92697, USA
| | - Sharmila Mallya
- Department of Molecular Biology and Biochemistry, and Institute for Immunology, University of California, Irvine, Irvine, CA 92697, USA
| | - Chaz G Woxland
- Department of Molecular Biology and Biochemistry, and Institute for Immunology, University of California, Irvine, Irvine, CA 92697, USA
| | - Meztli Arguello
- Department of Biochemistry and Goodman Cancer Research Centre, McGill University, Montreal, Quebec H3A 1A3, Canada
| | - Morgan L Truitt
- School of Medicine and Department of Urology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Nahum Sonenberg
- Department of Biochemistry and Goodman Cancer Research Centre, McGill University, Montreal, Quebec H3A 1A3, Canada
| | - Davide Ruggero
- School of Medicine and Department of Urology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA 94158, USA
| | - David A Fruman
- Department of Molecular Biology and Biochemistry, and Institute for Immunology, University of California, Irvine, Irvine, CA 92697, USA.
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35
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Pollizzi KN, Sun IH, Patel CH, Lo YC, Oh MH, Waickman AT, Tam AJ, Blosser RL, Wen J, Delgoffe GM, Powell JD. Asymmetric inheritance of mTORC1 kinase activity during division dictates CD8(+) T cell differentiation. Nat Immunol 2016; 17:704-11. [PMID: 27064374 PMCID: PMC4873361 DOI: 10.1038/ni.3438] [Citation(s) in RCA: 160] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Accepted: 03/15/2016] [Indexed: 12/15/2022]
Abstract
The asymmetric partitioning of fate determining proteins has been shown to contribute to the generation of effector and memory CD8+ T cell precursors. Here, we demonstrate the asymmetric partitioning of mTORC1 activity upon activation of naïve CD8+ T cells. This results in the generation of one daughter T cell with increased mTORC1 activity, increased glycolytic activity and increased expression of effector molecules. The other daughter T cell inherits relatively low levels of mTORC1 activity, possesses increased lipid metabolism, expresses increased anti-apoptotic molecules and subsequently displays enhanced long-term survival. Mechanistically, we demonstrate a link between TCR-induced asymmetric expression of amino acid transporters and RagC-mediated translocation of mTOR to the lysosomes. Overall, our data provide important insight into how mTORC1-mediated metabolic reprogramming affects the fate decisions of T cells.
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Affiliation(s)
- Kristen N Pollizzi
- Sidney-Kimmel Comprehensive Cancer Research Center, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Im-Hong Sun
- Sidney-Kimmel Comprehensive Cancer Research Center, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Chirag H Patel
- Sidney-Kimmel Comprehensive Cancer Research Center, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Ying-Chun Lo
- Sidney-Kimmel Comprehensive Cancer Research Center, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Min-Hee Oh
- Sidney-Kimmel Comprehensive Cancer Research Center, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Adam T Waickman
- Sidney-Kimmel Comprehensive Cancer Research Center, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Ada J Tam
- Sidney-Kimmel Comprehensive Cancer Research Center, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Richard L Blosser
- Sidney-Kimmel Comprehensive Cancer Research Center, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Jiayu Wen
- Sidney-Kimmel Comprehensive Cancer Research Center, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Greg M Delgoffe
- Sidney-Kimmel Comprehensive Cancer Research Center, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Jonathan D Powell
- Sidney-Kimmel Comprehensive Cancer Research Center, Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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36
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Caza T, Landas S. Functional and Phenotypic Plasticity of CD4(+) T Cell Subsets. BIOMED RESEARCH INTERNATIONAL 2015; 2015:521957. [PMID: 26583116 PMCID: PMC4637038 DOI: 10.1155/2015/521957] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 05/20/2015] [Accepted: 06/04/2015] [Indexed: 12/19/2022]
Abstract
The remarkable plasticity of CD4(+) T cells allows individuals to respond to environmental stimuli in a context-dependent manner. A balance of CD4(+) T cell subsets is critical to mount responses against pathogen challenges to prevent inappropriate activation, to maintain tolerance, and to participate in antitumor immune responses. Specification of subsets is a process beginning in intrathymic development and continuing within the circulation. It is highly flexible to adapt to differences in nutrient availability and the tissue microenvironment. CD4(+) T cell subsets have significant cross talk, with the ability to "dedifferentiate" given appropriate environmental signals. This ability is dependent on the metabolic status of the cell, with mTOR acting as the rheostat. Autoimmune and antitumor immune responses are regulated by the balance between regulatory T cells and Th17 cells. When a homeostatic balance of subsets is not maintained, immunopathology can result. CD4(+) T cells carry complex roles within tumor microenvironments, with context-dependent immune responses influenced by oncogenic drivers and the presence of inflammation. Here, we examine the signals involved in CD4(+) T cell specification towards each subset, interconnectedness of cytokine networks, impact of mTOR signaling, and cellular metabolism in lineage specification and provide a supplement describing techniques to study these processes.
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Affiliation(s)
- Tiffany Caza
- Department of Pathology, Upstate Medical University, 750 East Adams Street, Syracuse, NY 13210, USA
| | - Steve Landas
- Department of Pathology, Upstate Medical University, 750 East Adams Street, Syracuse, NY 13210, USA
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