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Leca J, Lemonnier F, Meydan C, Foox J, El Ghamrasni S, Mboumba DL, Duncan GS, Fortin J, Sakamoto T, Tobin C, Hodgson K, Haight J, Smith LK, Elia AJ, Butler D, Berger T, de Leval L, Mason CE, Melnick A, Gaulard P, Mak TW. IDH2 and TET2 mutations synergize to modulate T Follicular Helper cell functional interaction with the AITL microenvironment. Cancer Cell 2023; 41:323-339.e10. [PMID: 36736318 DOI: 10.1016/j.ccell.2023.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 04/11/2022] [Accepted: 01/11/2023] [Indexed: 02/05/2023]
Abstract
Angioimmunoblastic T cell lymphoma (AITL) is a peripheral T cell lymphoma that originates from T follicular helper (Tfh) cells and exhibits a prominent tumor microenvironment (TME). IDH2 and TET2 mutations co-occur frequently in AITL, but their contribution to tumorigenesis is poorly understood. We developed an AITL mouse model that is driven by Idh2 and Tet2 mutations. Malignant Tfh cells display aberrant transcriptomic and epigenetic programs that impair TCR signaling. Neoplastic Tfh cells bearing combined Idh2 and Tet2 mutations show altered cross-talk with germinal center B cells that promotes B cell clonal expansion while decreasing Fas-FasL interaction and reducing B cell apoptosis. The plasma cell count and angiogenesis are also increased in the Idh2-mutated tumors, implying a major relationship between Idh2 mutation and the characteristic AITL TME. Our mouse model recapitulates several features of human IDH2-mutated AITL and provides a rationale for exploring therapeutic targeting of Tfh-TME cross-talk for AITL patients.
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Affiliation(s)
- Julie Leca
- University Health Network, Princess Margaret Cancer Centre, Toronto, ON M5G 1L7, Canada.
| | - Franҫois Lemonnier
- University Paris-Est Créteil, INSERM U955, Institut Mondor de Recherche Biomédicale, 94010 Créteil, France; AP-HP, Lymphoid Malignancies Unit, Henri Mondor Hospital, 94010 Créteil, France
| | - Cem Meydan
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY 10021, USA; The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY 10065, USA
| | - Jonathan Foox
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY 10021, USA; The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY 10065, USA
| | - Samah El Ghamrasni
- University Health Network, Princess Margaret Cancer Centre, Toronto, ON M5G 1L7, Canada
| | - Diana-Laure Mboumba
- University Paris-Est Créteil, INSERM U955, Institut Mondor de Recherche Biomédicale, 94010 Créteil, France
| | - Gordon S Duncan
- University Health Network, Princess Margaret Cancer Centre, Toronto, ON M5G 1L7, Canada
| | - Jerome Fortin
- University Health Network, Princess Margaret Cancer Centre, Toronto, ON M5G 1L7, Canada
| | - Takashi Sakamoto
- University Health Network, Princess Margaret Cancer Centre, Toronto, ON M5G 1L7, Canada; Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
| | - Chantal Tobin
- University Health Network, Princess Margaret Cancer Centre, Toronto, ON M5G 1L7, Canada
| | - Kelsey Hodgson
- University Health Network, Princess Margaret Cancer Centre, Toronto, ON M5G 1L7, Canada
| | - Jillian Haight
- University Health Network, Princess Margaret Cancer Centre, Toronto, ON M5G 1L7, Canada
| | - Logan K Smith
- University Health Network, Princess Margaret Cancer Centre, Toronto, ON M5G 1L7, Canada
| | - Andrew J Elia
- University Health Network, Princess Margaret Cancer Centre, Toronto, ON M5G 1L7, Canada
| | - Daniel Butler
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY 10021, USA
| | - Thorsten Berger
- University Health Network, Princess Margaret Cancer Centre, Toronto, ON M5G 1L7, Canada
| | - Laurence de Leval
- Institute of Pathology, Department of Laboratory Medicine and Pathology, Lausanne University Hospital, Lausanne 1011, Switzerland; Lausanne University, Lausanne 1011, Switzerland
| | - Christopher E Mason
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY 10021, USA; The HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY 10065, USA; WorldQuant Initiative for Quantitative Prediction, Weill Cornell Medicine, New York, NY 10021, USA
| | - Ari Melnick
- Department of Medicine, Division of Hematology and Medical Oncology, Weill Cornell Medicine, New York, NY 10065, USA
| | - Philippe Gaulard
- University Paris-Est Créteil, INSERM U955, Institut Mondor de Recherche Biomédicale, 94010 Créteil, France; AP-HP, Pathology Department, Henri Mondor Hosital, 94010 Créteil, France
| | - Tak W Mak
- University Health Network, Princess Margaret Cancer Centre, Toronto, ON M5G 1L7, Canada; Departments of Medical Biophysics and Immunology, University of Toronto, Toronto, ON M5G 1L7, Canada; Department of Pathology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China; Centre for Oncology and Immunology, Hong Kong Science Park, Hong Kong SAR, China.
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Pan JH, Tang J, Redding MC, Beane KE, Conner CL, Cho YJ, Zhao J, Kim JH, Kong BC, Lee JH, Kim JK. Hepatic Transcriptomics Reveals that Lipogenesis Is a Key Signaling Pathway in Isocitrate Dehydrogenase 2 Deficient Mice. Genes (Basel) 2019; 10:genes10090728. [PMID: 31546946 PMCID: PMC6770969 DOI: 10.3390/genes10090728] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 09/13/2019] [Accepted: 09/16/2019] [Indexed: 10/26/2022] Open
Abstract
Mitochondrial nicotinamide adenine dinucleotide phosphate (NADP+)-dependent isocitrate dehydrogenase (IDH2) plays a key role in the intermediary metabolism and energy production via catalysing oxidative decarboxylation of isocitrate to α-ketoglutarate in the tricarboxylic acid (TCA) cycle. Despite studies reporting potential interlinks between IDH2 and various diseases, there is lack of effort to comprehensively characterize signature(s) of IDH2 knockout (IDH2 KO) mice. A total of 6583 transcripts were identified from both wild-type (WT) and IDH2 KO mice liver tissues. Afterwards, 167 differentially expressed genes in the IDH2 KO group were short-listed compared to the WT group based on our criteria. The online bioinformatic analyses indicated that lipid metabolism is the most significantly influenced metabolic process in IDH2 KO mice. Moreover, the TR/RXR activation pathway was predicted as the top canonical pathway significantly affected by IDH2 KO. The key transcripts found in the bioinformatic analyses were validated by qPCR analysis, corresponding to the transcriptomics results. Further, an additional qPCR analysis confirmed that IDH2 KO caused a decrease in hepatic de novo lipogenesis via the activation of the fatty acid β-oxidation process. Our unbiased transcriptomics approach and validation experiments suggested that IDH2 might play a key role in homeostasis of lipid metabolism.
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Affiliation(s)
- Jeong Hoon Pan
- School of Human Environmental Sciences, University of Arkansas, Fayetteville, AR 72701, USA.
| | - Jingsi Tang
- School of Human Environmental Sciences, University of Arkansas, Fayetteville, AR 72701, USA.
| | - Mersady C Redding
- School of Human Environmental Sciences, University of Arkansas, Fayetteville, AR 72701, USA.
| | - Kaleigh E Beane
- School of Human Environmental Sciences, University of Arkansas, Fayetteville, AR 72701, USA.
| | - Cara L Conner
- School of Human Environmental Sciences, University of Arkansas, Fayetteville, AR 72701, USA.
| | - Yun Jeong Cho
- School of Human Environmental Sciences, University of Arkansas, Fayetteville, AR 72701, USA.
| | - Jiangchao Zhao
- Department of Animal Science, University of Arkansas, Fayetteville, AR 72701, USA.
| | - Jun Ho Kim
- Department of Food Science and Biotechnology, Andong National University, Andong 36729, Korea.
| | - Byungwhi C Kong
- Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA.
| | - Jin Hyup Lee
- Department of Food and Biotechnology, Korea University, Sejong 30019, Korea.
| | - Jae Kyeom Kim
- School of Human Environmental Sciences, University of Arkansas, Fayetteville, AR 72701, USA.
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Kim YR, Baek JI, Kim SH, Kim MA, Lee B, Ryu N, Kim KH, Choi DG, Kim HM, Murphy MP, Macpherson G, Choo YS, Bok J, Lee KY, Park JW, Kim UK. Therapeutic potential of the mitochondria-targeted antioxidant MitoQ in mitochondrial-ROS induced sensorineural hearing loss caused by Idh2 deficiency. Redox Biol 2018; 20:544-555. [PMID: 30508699 PMCID: PMC6279977 DOI: 10.1016/j.redox.2018.11.013] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 11/15/2018] [Accepted: 11/18/2018] [Indexed: 12/12/2022] Open
Abstract
Mitochondrial NADP+-dependent isocitrate dehydrogenase 2 (IDH2) is a major NADPH-producing enzyme which is essential for maintaining the mitochondrial redox balance in cells. We sought to determine whether IDH2 deficiency induces mitochondrial dysfunction and modulates auditory function, and investigated the protective potential of an antioxidant agent against reactive oxygen species (ROS)-induced cochlear damage in Idh2 knockout (Idh2−/−) mice. Idh2 deficiency leads to damages to hair cells and spiral ganglion neurons (SGNs) in the cochlea and ultimately to apoptotic cell death and progressive sensorineural hearing loss in Idh2−/− mice. Loss of IDH2 activity led to decreased levels of NADPH and glutathione causing abnormal ROS accumulation and oxidative damage, which might trigger apoptosis signal in hair cells and SGNs in Idh2−/− mice. We performed ex vivo experiments to determine whether administration of mitochondria-targeted antioxidants might protect or induce recovery of cells from ROS-induced apoptosis in Idh2-deficient mouse cochlea. MitoQ almost completely neutralized the H2O2-induced ototoxicity, as the survival rate of Idh2−/− hair cells were restored to normal levels. In addition, the lack of IDH2 led to the accumulation of mitochondrial ROS and the depolarization of ΔΨm, resulting in hair cell loss. In the present study, we identified that IDH2 is indispensable for the functional maintenance and survival of hair cells and SGNs. Moreover, the hair cell degeneration caused by IDH2 deficiency can be prevented by MitoQ, which suggests that Idh2−/− mice could be a valuable animal model for evaluating the therapeutic effects of various antioxidant candidates to overcome ROS-induced hearing loss.
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Affiliation(s)
- Ye-Ri Kim
- Department of Biology, College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea; School of Life Sciences, KNU Creative BioResearch Group (BK21 Plus Project), Kyungpook National University, Daegu, Republic of Korea
| | - Jeong-In Baek
- Department of Aroma-Applied Industry, College of Herbal Bio-industry, Daegu Haany University, Gyeongsan, Republic of Korea
| | - Sung Hwan Kim
- Department of Biology, College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea; School of Life Sciences, KNU Creative BioResearch Group (BK21 Plus Project), Kyungpook National University, Daegu, Republic of Korea
| | - Min-A Kim
- Department of Biology, College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea; School of Life Sciences, KNU Creative BioResearch Group (BK21 Plus Project), Kyungpook National University, Daegu, Republic of Korea
| | - Byeonghyeon Lee
- Department of Biology, College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea; School of Life Sciences, KNU Creative BioResearch Group (BK21 Plus Project), Kyungpook National University, Daegu, Republic of Korea
| | - Nari Ryu
- Department of Biology, College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea; School of Life Sciences, KNU Creative BioResearch Group (BK21 Plus Project), Kyungpook National University, Daegu, Republic of Korea
| | - Kyung-Hee Kim
- Department of Biology, College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea; School of Life Sciences, KNU Creative BioResearch Group (BK21 Plus Project), Kyungpook National University, Daegu, Republic of Korea
| | - Deok-Gyun Choi
- Department of Biology, College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Hye-Min Kim
- Department of Biology, College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea; School of Life Sciences, KNU Creative BioResearch Group (BK21 Plus Project), Kyungpook National University, Daegu, Republic of Korea
| | - Michael P Murphy
- Medical Research Council (MRC)-Mitochondrial Biology Unit, University of Cambridge, Cambridge CB2 0XY, United Kingdom
| | - Greg Macpherson
- Antipodean Pharmaceuticals Inc, L2 14 Viaduct Harbour Rd, Auckland, New Zealand
| | - Yeon-Sik Choo
- Department of Biology, College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Jinwoong Bok
- Department of Anatomy, Yonsei University College of Medicine, Seoul, Republic of Korea; BK21PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea; Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Kyu-Yup Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.
| | - Jeen-Woo Park
- School of Life Sciences, KNU Creative BioResearch Group (BK21 Plus Project), Kyungpook National University, Daegu, Republic of Korea; Department of Biochemistry, School of Life Sciences and Biotechnology, College of Natural Sciences, Kyungpook National University, Daegu 41566, Republic of Korea.
| | - Un-Kyung Kim
- Department of Biology, College of Natural Sciences, Kyungpook National University, Daegu, Republic of Korea; School of Life Sciences, KNU Creative BioResearch Group (BK21 Plus Project), Kyungpook National University, Daegu, Republic of Korea.
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