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Yu H, Yang W, Cao M, Lei Q, Yuan R, Xu H, Cui Y, Chen X, Su X, Zhuo H, Lin L. Mechanism study of ubiquitination in T cell development and autoimmune disease. Front Immunol 2024; 15:1359933. [PMID: 38562929 PMCID: PMC10982411 DOI: 10.3389/fimmu.2024.1359933] [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: 12/22/2023] [Accepted: 02/19/2024] [Indexed: 04/04/2024] Open
Abstract
T cells play critical role in multiple immune processes including antigen response, tumor immunity, inflammation, self-tolerance maintenance and autoimmune diseases et. Fetal liver or bone marrow-derived thymus-seeding progenitors (TSPs) settle in thymus and undergo T cell-lineage commitment, proliferation, T cell receptor (TCR) rearrangement, and thymic selections driven by microenvironment composed of thymic epithelial cells (TEC), dendritic cells (DC), macrophage and B cells, thus generating T cells with diverse TCR repertoire immunocompetent but not self-reactive. Additionally, some self-reactive thymocytes give rise to Treg with the help of TEC and DC, serving for immune tolerance. The sequential proliferation, cell fate decision, and selection during T cell development and self-tolerance establishment are tightly regulated to ensure the proper immune response without autoimmune reaction. There are remarkable progresses in understanding of the regulatory mechanisms regarding ubiquitination in T cell development and the establishment of self-tolerance in the past few years, which holds great potential for further therapeutic interventions in immune-related diseases.
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Affiliation(s)
- Hui Yu
- Department of Urology, Medical Research Center, Department of Neurosurgery, The Third People’s Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, The Second Chengdu Hospital Affiliated to Chongqing Medical University, Chengdu, China
| | - Wenyong Yang
- Department of Urology, Medical Research Center, Department of Neurosurgery, The Third People’s Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, The Second Chengdu Hospital Affiliated to Chongqing Medical University, Chengdu, China
| | - Min Cao
- Department of Urology, Medical Research Center, Department of Neurosurgery, The Third People’s Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, The Second Chengdu Hospital Affiliated to Chongqing Medical University, Chengdu, China
| | - Qingqiang Lei
- Department of Urology, Medical Research Center, Department of Neurosurgery, The Third People’s Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, The Second Chengdu Hospital Affiliated to Chongqing Medical University, Chengdu, China
| | - Renbin Yuan
- Department of Urology, Medical Research Center, Department of Neurosurgery, The Third People’s Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, The Second Chengdu Hospital Affiliated to Chongqing Medical University, Chengdu, China
| | - He Xu
- Department of Urology, Medical Research Center, Department of Neurosurgery, The Third People’s Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, The Second Chengdu Hospital Affiliated to Chongqing Medical University, Chengdu, China
| | - Yuqian Cui
- Department of Urology, Medical Research Center, Department of Neurosurgery, The Third People’s Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, The Second Chengdu Hospital Affiliated to Chongqing Medical University, Chengdu, China
| | - Xuerui Chen
- Department of Urology, Medical Research Center, Department of Neurosurgery, The Third People’s Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, The Second Chengdu Hospital Affiliated to Chongqing Medical University, Chengdu, China
| | - Xu Su
- Department of Urology, Medical Research Center, Department of Neurosurgery, The Third People’s Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, The Second Chengdu Hospital Affiliated to Chongqing Medical University, Chengdu, China
- College of Medicine, Southwest Jiaotong University, Chengdu, China
| | - Hui Zhuo
- Department of Urology, Medical Research Center, Department of Neurosurgery, The Third People’s Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, The Second Chengdu Hospital Affiliated to Chongqing Medical University, Chengdu, China
| | - Liangbin Lin
- Department of Urology, Medical Research Center, Department of Neurosurgery, The Third People’s Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, The Second Chengdu Hospital Affiliated to Chongqing Medical University, Chengdu, China
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Park JH, Kang I, Lee HK. γδ T Cells in Brain Homeostasis and Diseases. Front Immunol 2022; 13:886397. [PMID: 35693762 PMCID: PMC9181321 DOI: 10.3389/fimmu.2022.886397] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 04/25/2022] [Indexed: 11/30/2022] Open
Abstract
γδ T cells are a distinct subset of T cells expressing γδ T cell receptor (TCR) rather than αβTCR. Since their discovery, the critical roles of γδ T cells in multiple physiological systems and diseases have been investigated. γδ T cells are preferentially located at mucosal surfaces, such as the gut, although a small subset of γδ T cells can circulate the blood. Additionally, a subset of γδ T cells reside in the meninges in the central nervous system. Recent findings suggest γδ T cells in the meninges have critical roles in brain function and homeostasis. In addition, several lines of evidence have shown γδ T cells can infiltrate the brain parenchyma and regulate inflammatory responses in multiple diseases, including neurodegenerative diseases. Although the importance of γδ T cells in the brain is well established, their roles are still incompletely understood due to the complexity of their biology. Because γδ T cells rapidly respond to changes in brain status and regulate disease progression, understanding the role of γδ T cells in the brain will provide critical information that is essential for interpreting neuroimmune modulation. In this review, we summarize the complex role of γδ T cells in the brain and discuss future directions for research.
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Tsiomita S, Liveri EM, Vardaka P, Vogiatzi A, Skiadaresis A, Saridis G, Tsigkas I, Michaelidis TM, Mavrothalassitis G, Thyphronitis G. ETS2 repressor factor (ERF) is involved in T lymphocyte maturation acting as regulator of thymocyte lineage commitment. J Leukoc Biol 2022; 112:641-657. [PMID: 35258130 DOI: 10.1002/jlb.1a0720-439r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 11/30/2021] [Indexed: 11/12/2022] Open
Abstract
Thymocyte differentiation and lineage commitment is regulated by an extensive network of transcription factors and signaling molecules among which Erk plays a central role. However, Erk effectors as well as the molecular mechanisms underlying this network are not well understood. Erf is a ubiquitously expressed transcriptional repressor regulated by Erk-dependent phosphorylation. Here, we investigated the role of Erf in T cell maturation and lineage commitment, using a double-fluorescent Erf-floxed mouse to produce thymus-specific Erf knockouts. We observed significant accumulation of thymocytes in the CD4/CD8 DP stage, followed by a significant reduction in CD4SP cells, a trend for lower CD8SP cell frequency, and an elevated percentage of γδ expressing thymocytes in Erf-deficient mice. Also, an elevated number of CD69+ TCRβ+ cells indicates that thymocytes undergoing positive selection accumulate at this stage. The expression of transcription factors Gata3, ThPOK, and Socs1 that promote CD4+ cell commitment was significantly decreased in Erf-deficient mice. These findings suggest that Erf is involved in T cell maturation, acting as a positive regulator during CD4 and eventually CD8 lineage commitment, while negatively regulates the production of γδ T cells. In addition, Erf-deficient mice displayed decreased percentages of CD4+ and CD8+ splenocytes and elevated levels of IL-4 indicating that Erf may have an additional role in the homeostasis, differentiation, and immunologic response of helper and cytotoxic T cells in the periphery. Overall, our results show, for the first time, Erf's involvement in T cell biology suggesting that Erf acts as a potential regulator during thymocyte maturation and thymocyte lineage commitment, in γδ T cell generation, as well as in Th cell differentiation.
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Affiliation(s)
- Spyridoula Tsiomita
- Department of Biological Applications and Technology, University of Ioannina, Ioannina, Greece
| | - Effrosyni Maria Liveri
- Department of Biological Applications and Technology, University of Ioannina, Ioannina, Greece
| | - Panagiota Vardaka
- Department of Biological Applications and Technology, University of Ioannina, Ioannina, Greece
| | - Angeliki Vogiatzi
- Department of Medicine, Medical School, University of Crete, Heraklion, Greece
| | - Argyris Skiadaresis
- Department of Biological Applications and Technology, University of Ioannina, Ioannina, Greece
| | - George Saridis
- Department of Biological Applications and Technology, University of Ioannina, Ioannina, Greece
| | - Ioannis Tsigkas
- Department of Biological Applications and Technology, University of Ioannina, Ioannina, Greece.,Department of Biomedical Research, Institute of Molecular Biology & Biotechnology, Foundation for Research and Technology-Hellas, Ioannina, Greece
| | - Theologos M Michaelidis
- Department of Biological Applications and Technology, University of Ioannina, Ioannina, Greece.,Department of Biomedical Research, Institute of Molecular Biology & Biotechnology, Foundation for Research and Technology-Hellas, Ioannina, Greece
| | - George Mavrothalassitis
- Department of Medicine, Medical School, University of Crete, Heraklion, Greece.,IMBB, FORTH, Heraklion, Crete, Greece
| | - George Thyphronitis
- Department of Biological Applications and Technology, University of Ioannina, Ioannina, Greece
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Ben-David Y, Gajendran B, Sample KM, Zacksenhaus E. Current insights into the role of Fli-1 in hematopoiesis and malignant transformation. Cell Mol Life Sci 2022; 79:163. [PMID: 35412146 PMCID: PMC11072361 DOI: 10.1007/s00018-022-04160-1] [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: 11/01/2021] [Revised: 01/05/2022] [Accepted: 01/19/2022] [Indexed: 11/27/2022]
Abstract
Fli-1, a member of the ETS family of transcription factors, was discovered in 1991 through retroviral insertional mutagenesis as a driver of mouse erythroleukemias. In the past 30 years, nearly 2000 papers have defined its biology and impact on normal development and cancer. In the hematopoietic system, Fli-1 controls self-renewal of stem cells and their differentiation into diverse mature blood cells. Fli-1 also controls endothelial survival and vasculogenesis, and high and low levels of Fli-1 are implicated in the auto-immune diseases systemic lupus erythematosus and systemic sclerosis, respectively. In addition, aberrant Fli-1 expression is observed in, and is essential for, the growth of multiple hematological malignancies and solid cancers. Here, we review the historical context and latest research on Fli-1, focusing on its role in hematopoiesis, immune response, and malignant transformation. The importance of identifying Fli-1 modulators (both agonists and antagonists) and their potential clinical applications is discussed.
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Affiliation(s)
- Yaacov Ben-David
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Province Science City, High Tech Zone, Baiyun District, Guiyang, 550014, Guizhou Province, People's Republic of China.
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academic of Sciences, Guiyang, 550014, Guizhou Province, People's Republic of China.
| | - Babu Gajendran
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Province Science City, High Tech Zone, Baiyun District, Guiyang, 550014, Guizhou Province, People's Republic of China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academic of Sciences, Guiyang, 550014, Guizhou Province, People's Republic of China
- School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang, 550025, Guizhou Province, People's Republic of China
| | - Klarke M Sample
- State Key Laboratory for Functions and Applications of Medicinal Plants, Guizhou Medical University, Province Science City, High Tech Zone, Baiyun District, Guiyang, 550014, Guizhou Province, People's Republic of China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academic of Sciences, Guiyang, 550014, Guizhou Province, People's Republic of China
| | - Eldad Zacksenhaus
- Department of Medicine, University of Toronto, Toronto, ON, Canada
- Toronto General Research Institute, Max Bell Research Centre, University Health Network, 101 College Street, Toronto, ON, Canada
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Immunological Evaluation of Patients Affected with Jacobsen Syndrome Reveals Profound Not Age-Related Lymphocyte Alterations. J Clin Immunol 2021; 42:365-374. [PMID: 34802108 DOI: 10.1007/s10875-021-01169-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 10/28/2021] [Indexed: 10/19/2022]
Abstract
PURPOSE Jacobsen syndrome (JS) is a rare form of genetic disorder that was recently classified as a syndromic immunodeficiency. Available detailed immunological data from JS patients are limited. METHODS Clinical and immunological presentation of twelve pediatric patients with JS by means of revision of clinical records, flow cytometry, real-time PCR, and lymphocyte functional testing were collected. RESULTS Recurrent infections were registered in 6/12 patients (50%), while bleeding episodes in 2/12 (16.7%). White blood cell and absolute lymphocyte counts were reduced in 8/12 (66.7%) and 7/12 (58.3%) patients, respectively. Absolute numbers of CD3+ and CD4+ T cells were reduced in 8/12 (66.7%) and 7/12 (58.3%), respectively. Of note, recent thymic emigrants (RTE) were reduced in all tested patients (9/9), with T-cell receptor excision circle analysis (TRECs) showing a similar trend in 8/9 patients; naïve CD4+ T cells were low only in 5/11 patients (45.4%). Interestingly, B-cell counts, IgM memory B cells, and IgM serum levels were reduced in 10/12 (83.3%) patients. Natural killer (NK) cell counts were mostly normal but the percentages of CD16+CD56low/- cells were expanded in 7/7 patients tested. The observed immunological alterations did not correlate with patients' age. Finally, responses to proliferative stimuli were normal at presentation for all patients, although they may deteriorate over time. CONCLUSIONS Our data suggest that patients affected with JS may display important numeric and maturational alterations in the T-, B-, and NK-cell compartments. These findings suggest that JS patients should be regularly monitored from an immunological point of view.
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He YS, Yang XK, Hu YQ, Xiang K, Pan HF. Emerging role of Fli1 in autoimmune diseases. Int Immunopharmacol 2020; 90:107127. [PMID: 33234418 DOI: 10.1016/j.intimp.2020.107127] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 09/21/2020] [Accepted: 10/19/2020] [Indexed: 11/25/2022]
Abstract
The Ets transcription factor family exerts crucial role in cell proliferation, apoptosis, differentiation and migration. Friend leukemia integration 1 (Fli1), a member of the Ets family, is expressed in fibroblasts, endothelial cells and immune cells. Fli1 gene is participated in the development, proliferation, activation, migration and other processes of immune cells. Fli1 can also affect the function of immune cells by regulating cytokines and chemokines. Emerging evidence has shown that Fli1 is implicated in the etiology of several autoimmune diseases, including systemic sclerosis (SSc) and systemic lupus erythematosus (SLE). In this review, we mainly discuss the current evidence for the role of Fli1 in these diseases.
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Affiliation(s)
- Yi-Sheng He
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, 81 Meishan Road, Hefei, Anhui, China
| | - Xiao-Ke Yang
- Department of Rheumatology and Immunology, the First Affiliated Hospital of Anhui Medical University, 218 Jixi Road, Hefei, Anhui, China
| | - Yu-Qian Hu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, 81 Meishan Road, Hefei, Anhui, China
| | - Kun Xiang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, 81 Meishan Road, Hefei, Anhui, China
| | - Hai-Feng Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, 81 Meishan Road, Hefei, Anhui, China.
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Anderson MK, Selvaratnam JS. Interaction between γδTCR signaling and the E protein-Id axis in γδ T cell development. Immunol Rev 2020; 298:181-197. [PMID: 33058287 DOI: 10.1111/imr.12924] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 08/24/2020] [Accepted: 08/28/2020] [Indexed: 02/06/2023]
Abstract
γδ T cells acquire their functional properties in the thymus, enabling them to exert rapid innate-like responses. To understand how distinct γδ T cell subsets are generated, we have developed a Two-Stage model for γδ T cell development. This model is predicated on the finding that γδTCR signal strength impacts E protein activity through graded upregulation of Id3. Our model proposes that cells enter Stage 1 in response to a γδTCR signaling event in the cortex that activates a γδ T cell-specific gene network. Part of this program includes the upregulation of chemokine receptors that guide them to the medulla. In the medulla, Stage 1 cells receive distinct combinations of γδTCR, cytokine, and/co-stimulatory signals that induce their transit into Stage 2, either toward the γδT1 or the γδT17 lineage. The intersection between γδTCR and cytokine signals can tune Id3 expression, leading to different outcomes even in the presence of strong γδTCR signals. The thymic signaling niches required for γδT17 development are segregated in time and space, providing transient windows of opportunity during ontogeny. Understanding the regulatory context in which E proteins operate at different stages will be key in defining how their activity levels impose functional outcomes.
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Affiliation(s)
- Michele K Anderson
- Biological Sciences, Sunnybrook Research Institute, Toronto, ON, Canada.,Department of Immunology, University of Toronto, Toronto, ON, Canada
| | - Johanna S Selvaratnam
- Biological Sciences, Sunnybrook Research Institute, Toronto, ON, Canada.,Department of Immunology, University of Toronto, Toronto, ON, Canada
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Yang L, Rodriguez B, Mayle A, Park HJ, Lin X, Luo M, Jeong M, Curry CV, Kim SB, Ruau D, Zhang X, Zhou T, Zhou M, Rebel VI, Challen GA, Gottgens B, Lee JS, Rau R, Li W, Goodell MA. DNMT3A Loss Drives Enhancer Hypomethylation in FLT3-ITD-Associated Leukemias. Cancer Cell 2016; 29:922-934. [PMID: 27300438 PMCID: PMC4908977 DOI: 10.1016/j.ccell.2016.05.003] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 02/29/2016] [Accepted: 05/10/2016] [Indexed: 10/21/2022]
Abstract
DNMT3A, the gene encoding the de novo DNA methyltransferase 3A, is among the most frequently mutated genes in hematologic malignancies. However, the mechanisms through which DNMT3A normally suppresses malignancy development are unknown. Here, we show that DNMT3A loss synergizes with the FLT3 internal tandem duplication in a dose-influenced fashion to generate rapid lethal lymphoid or myeloid leukemias similar to their human counterparts. Loss of DNMT3A leads to reduced DNA methylation, predominantly at hematopoietic enhancer regions in both mouse and human samples. Myeloid and lymphoid diseases arise from transformed murine hematopoietic stem cells. Broadly, our findings support a role for DNMT3A as a guardian of the epigenetic state at enhancer regions, critical for inhibition of leukemic transformation.
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Affiliation(s)
- Liubin Yang
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas 77030, USA
- Stem Cells and Regenerative Medicine Center, Baylor College of Medicine, Houston, Texas 77030, USA
| | - Benjamin Rodriguez
- Dan L. Duncan Cancer Center and Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas 77030, USA
| | - Allison Mayle
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas 77030, USA
- Stem Cells and Regenerative Medicine Center, Baylor College of Medicine, Houston, Texas 77030, USA
| | - Hyun Jung Park
- Dan L. Duncan Cancer Center and Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas 77030, USA
| | - Xueqiu Lin
- Dan L. Duncan Cancer Center and Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas 77030, USA
- Department of Bioinformatics, School of Life sciences and Technology, Tongji University, Shanghai 20092, China
| | - Min Luo
- Stem Cells and Regenerative Medicine Center, Baylor College of Medicine, Houston, Texas 77030, USA
| | - Mira Jeong
- Stem Cells and Regenerative Medicine Center, Baylor College of Medicine, Houston, Texas 77030, USA
| | - Choladda V. Curry
- Department of Pathology and Immunology, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas 77030, USA
| | - Sang-Bae Kim
- Department of Systems Biology, Division of Cancer Medicine, University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - David Ruau
- Wellcome Trust/MRC Stem Cell Institute, Cambridge CB2 0XY, UK
| | - Xiaotian Zhang
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas 77030, USA
- Stem Cells and Regenerative Medicine Center, Baylor College of Medicine, Houston, Texas 77030, USA
| | - Ting Zhou
- Greehey Children's Cancer Research Institute and Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | | | - Vivienne I. Rebel
- Greehey Children's Cancer Research Institute and Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Grant A. Challen
- Division of Oncology, Washington University School of Medicine, St. Louis, Missouri 63110, USA
| | | | - Ju-Seog Lee
- Department of Systems Biology, Division of Cancer Medicine, University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Rachel Rau
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas 77030, USA
| | - Wei Li
- Dan L. Duncan Cancer Center and Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas 77030, USA
| | - Margaret A. Goodell
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas 77030, USA
- Dan L. Duncan Cancer Center and Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas 77030, USA
- Stem Cells and Regenerative Medicine Center, Baylor College of Medicine, Houston, Texas 77030, USA
- Department of Systems Biology, Division of Cancer Medicine, University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
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