1
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Jiang M, Wang X, Yu M, Jiang S, Hong M, Zhou Y, Li F, Liu H, Zhang Z. Report of IRF2BP1 as a novel partner of RARA in variant acute promyelocytic leukemia. Am J Hematol 2024; 99:1005-1007. [PMID: 38410879 DOI: 10.1002/ajh.27272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 02/14/2024] [Accepted: 02/18/2024] [Indexed: 02/28/2024]
Abstract
IRF2BP1 breaked in the middle of exon 1 at the c.322 position and fused with RARA intron 2 which is located at 3717 bp upstream of its exon 3. The fusion produced a new intron by forming a paired splicing donor GT at 9 bp downstream of RARA breakpoint and acceptor AG at the 5' end of RARA exon 3. The IRF2BP1::RARA fusion gene leads a fusion transcript involving IRF2BP1 exon 1 and RARA exon 3, linked by a 9-bp fragment derived from RARA intron 2. The patient with IRF2BP1::RARA has same clinical features of APL.
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Affiliation(s)
- Mei Jiang
- Department of Clinical Laboratory, the First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Xuemei Wang
- Department of Blood Transfusion, the First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Min Yu
- Department of Hematology, the First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Shuling Jiang
- Nursing School of Nanchang University, Nanchang, China
| | - Miao Hong
- Department of Blood Transfusion, the First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Yuru Zhou
- Department of Blood Transfusion, the First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Fei Li
- Department of Hematology, the First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Hongxing Liu
- Department of Laboratory Medicine, Hebei Yanda Lu Daopei Hospital, Langfang, China
| | - Zhanglin Zhang
- Department of Blood Transfusion, Institute of transfusion, Jiangxi Key Laboratory of transfusion, the First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
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2
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Chen Y, Pan M, Chen L, Peng M, Liu Z, Fang Y, Du Y, Yang Y, Xu P. Identification of a novel fusion gene, RARA::ANKRD34C, in acute promyelocytic leukemia. Ann Hematol 2024; 103:1181-1185. [PMID: 38294534 DOI: 10.1007/s00277-024-05629-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 01/15/2024] [Indexed: 02/01/2024]
Abstract
Acute promyelocytic leukemia (APL) is a specific subtype of acute myeloid leukemia that is distinguished by the chromosomal translocation t(15;17)(q24;q21), which leads to the fusion of the promyelocytic leukemia (PML) gene with the retinoic acid receptor alpha (RARA). Recently, we identified a novel fusion gene in APL, RARA::ankyrin repeat domain 34C (ANKRD34C), identified its functions by morphological, cytogenetic, molecular biological and multiplex fluorescence in situ hybridization analyses, and demonstrated the potential therapeutic effect clinically and experimentally of all-trans retinoic acid (ATRA); the findings have important implications for the diagnosis and treatment of atypical APL.
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MESH Headings
- Humans
- Leukemia, Promyelocytic, Acute/diagnosis
- Leukemia, Promyelocytic, Acute/genetics
- Leukemia, Promyelocytic, Acute/drug therapy
- In Situ Hybridization, Fluorescence
- Tretinoin/therapeutic use
- Retinoic Acid Receptor alpha/genetics
- Carrier Proteins/genetics
- Translocation, Genetic
- Oncogene Proteins, Fusion/genetics
- Oncogene Proteins, Fusion/metabolism
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Affiliation(s)
- Yue Chen
- Nanjing Drum Tower Hospital Clinical College of Jiangsu University, Nanjing, 210008, China
| | - Mengge Pan
- Department of Hematology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Lanxin Chen
- Department of Hematology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Miaoxin Peng
- Department of Hematology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Zhenyu Liu
- Department of Hematology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Yiran Fang
- Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, 210008, China
| | - Ying Du
- Department of Hematology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Yonggong Yang
- Department of Hematology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China.
| | - Peipei Xu
- Department of Hematology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China.
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3
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DiKun KM, Tang XH, Fu L, Choi ME, Lu C, Gudas LJ. Retinoic acid receptor α activity in proximal tubules prevents kidney injury and fibrosis. Proc Natl Acad Sci U S A 2024; 121:e2311803121. [PMID: 38330015 PMCID: PMC10873609 DOI: 10.1073/pnas.2311803121] [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] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 12/18/2023] [Indexed: 02/10/2024] Open
Abstract
Chronic kidney disease (CKD) is characterized by a gradual loss of kidney function and affects ~13.4% of the global population. Progressive tubulointerstitial fibrosis, driven in part by proximal tubule (PT) damage, is a hallmark of late stages of CKD and contributes to the development of kidney failure, for which there are limited treatment options. Normal kidney development requires signaling by vitamin A (retinol), which is metabolized to retinoic acid (RA), an endogenous agonist for the RA receptors (RARα, β, γ). RARα levels are decreased in a mouse model of diabetic nephropathy and restored with RA administration; additionally, RA treatment reduced fibrosis. We developed a mouse model in which a spatiotemporal (tamoxifen-inducible) deletion of RARα in kidney PT cells of adult mice causes mitochondrial dysfunction, massive PT injury, and apoptosis without the use of additional nephrotoxic substances. Long-term effects (3 to 4.5 mo) of RARα deletion include increased PT secretion of transforming growth factor β1, inflammation, interstitial fibrosis, and decreased kidney function, all of which are major features of human CKD. Therefore, RARα's actions in PTs are crucial for PT homeostasis, and loss of RARα causes injury and a key CKD phenotype.
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Affiliation(s)
- Krysta M. DiKun
- Department of Pharmacology, Weill Cornell Medical College of Cornell University, New York, NY10065
- Weill Cornell Graduate School of Medical Sciences, New York, NY10065
| | - Xiao-Han Tang
- Department of Pharmacology, Weill Cornell Medical College of Cornell University, New York, NY10065
| | - Leiping Fu
- Department of Pharmacology, Weill Cornell Medical College of Cornell University, New York, NY10065
| | - Mary E. Choi
- New York Presbyterian Hospital, New York, NY10065
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY10065
| | | | - Lorraine J. Gudas
- Department of Pharmacology, Weill Cornell Medical College of Cornell University, New York, NY10065
- Weill Cornell Graduate School of Medical Sciences, New York, NY10065
- Department of Urology, New York, NY10065
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4
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Shan X, Zhang X, Huang G, Lv J, Ye Z, Jiang C, Jiang X, Cheng J, Lin H, Jiang H, Yue H, Wang Z, Xu W. A novel SNP in HUWE1 promoter confers increased risk of NOA by affecting the RA/RARα pathway in Chinese individuals. Andrology 2024; 12:338-348. [PMID: 37290064 DOI: 10.1111/andr.13474] [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] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 05/30/2023] [Accepted: 06/02/2023] [Indexed: 06/10/2023]
Abstract
BACKGROUND The ubiquitin ligase HECT, UBA, and WWE domain-containing E3 ubiquitin protein ligase 1 is essential for the establishment and maintenance of spermatogonia. However, the role of HECT, UBA, and WWE domain-containing E3 ubiquitin protein ligase 1 in regulating germ cell differentiation remains unclear, and clinical evidence linking HECT, UBA, and WWE domain-containing E3 ubiquitin protein ligase 1 to male infertility pathogenesis is lacking. OBJECTIVE This study aims to investigate the role of HUWE1 in germ cell differentiation and the mechanism by which a HUWE1 single nucleotide polymorphism increases male infertility risk. MATERIALS AND METHODS We analyzed HUWE1 single nucleotide polymorphisms in 190 non-obstructive azoospermia patients of Han Chinese descent. We evaluated HECT, UBA, and WWE domain-containing E3 ubiquitin protein ligase 1 regulation by retinoic acid receptor alpha using chromatin immunoprecipitation assays, electrophoretic mobility shift assays, and siRNA-mediated RARα knockdown. Using C18-4 spermatogonial cells, we determined whether HECT, UBA, and WWE domain-containing E3 ubiquitin protein ligase 1 participated in retinoic acid-mediated retinoic acid receptor alpha signaling. We performed luciferase assays, cell counting kit-8 assays, immunofluorescence, quantitative real-time polymerase chain reaction, and western blotting. We quantified HUWE1 and retinoic acid receptor alpha in testicular biopsies from non-obstructive azoospermia and obstructive azoospermia patients using quantitative real-time polymerase chain reaction and immunofluorescence. RESULTS Three HUWE1 single nucleotide polymorphisms were significantly associated with spermatogenic failure in 190 non-obstructive azoospermia patients; one (rs34492591) was in the HUWE1 promoter. Retinoic acid receptor alpha regulates HUWE1 gene expression by binding to its promoter. HECT, UBA, and WWE domain-containing E3 ubiquitin protein ligase 1 participates in retinoic acid/retinoic acid receptor alpha signaling pathway and regulates the expression of germ cell differentiation genes STRA8 and SCP3 to inhibit cell proliferation and reduce γH2AX accumulation. Notably, significantly lower levels of HUWE1 and RARα were detected in testicular biopsy samples from non-obstructive azoospermia patients. CONCLUSIONS An HUWE1 promoter single nucleotide polymorphism significantly downregulates its expression in non-obstructive azoospermia patients. Mechanistically, HECT, UBA, and WWE domain-containing E3 ubiquitin protein ligase 1 regulates germ cell differentiation during meiotic prophase through its participation in retinoic acid/retinoic acid receptor alpha signaling and subsequent modulation of γH2AX. Taken together, these results strongly suggest that the genetic polymorphisms of HUWE1 are closely related to spermatogenesis and non-obstructive azoospermia pathogenesis.
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Affiliation(s)
- Xudong Shan
- West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
- Reproductive & Women-Children Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xueguang Zhang
- Department of Obstetrics/Gynecology, Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Gelin Huang
- Department of Obstetrics/Gynecology, Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Jiao Lv
- Department of Obstetrics/Gynecology, Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Zixia Ye
- Department of Obstetrics/Gynecology, Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Chuan Jiang
- Department of Obstetrics/Gynecology, Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Xiaohui Jiang
- Human Sperm Bank, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Disease of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Jianxing Cheng
- Department of Urology, Peking University Third Hospital, Peking University, Beijing, China
| | - Haocheng Lin
- Department of Urology, Peking University Third Hospital, Peking University, Beijing, China
| | - Hui Jiang
- Department of Urology, Peking University Third Hospital, Peking University, Beijing, China
| | - Huanxun Yue
- Human Sperm Bank, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Disease of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Zhengrong Wang
- West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Wenming Xu
- Department of Obstetrics/Gynecology, Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
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5
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Moramarco F, McCaffery P. Retinoic acid regulation of homoeostatic synaptic plasticity and its relationship to cognitive disorders. J Mol Endocrinol 2024; 72:e220177. [PMID: 37930232 DOI: 10.1530/jme-22-0177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 11/06/2023] [Indexed: 11/07/2023]
Abstract
There is increasing interest in retinoic acid (RA) as a regulator of the complex biological processes underlying the cognitive functions performed by the brain. The importance of RA in brain function is underlined by the brain's high efficiency in converting vitamin A into RA. One crucial action of RA in the brain is dependent on RA receptor α (RARα) transport out of the nucleus, where it no longer regulates transcription but carries out non-genomic functions. RARα, when localised in the cytoplasm, particularly in neuronal dendrites, acts as a translational suppressor. It regulates protein translation as a crucial part of the mechanism maintaining homoeostatic synaptic plasticity, which is characterised by neuronal changes necessary to restore and balance the excitability of neuronal networks after perturbation events. Under normal conditions of neurotransmission, RARα without ligand suppresses the translation of proteins. When neural activity is reduced, RA synthesis is stimulated, and RA signalling via RARα derepresses the translation of proteins and synergistically with the fragile X mental retardation protein allows the synthesis of Ca2+ permeable α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors that re-establish normal levels of synaptic activity. Homoeostatic synaptic plasticity underlies many cognitive processes, so its impairment due to dysregulation of RA signalling may be involved in neurodevelopmental disorders such as autism, which is also associated with FMRP. A full understanding of RA signalling control of homoeostatic synaptic plasticity may point to treatments.
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Affiliation(s)
- Francesca Moramarco
- Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen, Scotland, UK
| | - Peter McCaffery
- Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen, Scotland, UK
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6
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Kong X, Hu M, Zhang J, Han J, Liu Y, Song B, Lin Z, Qiu H. A short report of novel acute promyelocytic leukemia with runt-related transcription factor 1-retinoic acid receptor alpha. Hematol Oncol 2024; 42:e3214. [PMID: 37751309 DOI: 10.1002/hon.3214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Affiliation(s)
- Xin Kong
- Department of Hematology, The First Affiliated Hospital of Soochow University, National Clinical Research Center for Hematologic Diseases, Suzhou, Jiangsu, China
| | - Mingming Hu
- Department of Hematology, Suzhou Yongding Hospital, Suzhou, Jiangsu, China
| | - Jian Zhang
- Department of Hematology, The First Affiliated Hospital of Soochow University, National Clinical Research Center for Hematologic Diseases, Suzhou, Jiangsu, China
| | - Jingjing Han
- Department of Hematology, The First Affiliated Hospital of Soochow University, National Clinical Research Center for Hematologic Diseases, Suzhou, Jiangsu, China
| | - Yin Liu
- Department of Hematology, The First Affiliated Hospital of Soochow University, National Clinical Research Center for Hematologic Diseases, Suzhou, Jiangsu, China
| | - Baoquan Song
- Department of Hematology, The First Affiliated Hospital of Soochow University, National Clinical Research Center for Hematologic Diseases, Suzhou, Jiangsu, China
- Jiangsu Institute of Hematology, Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, Jiangsu, China
| | - Zhihong Lin
- Department of Hematology, Suzhou Yongding Hospital, Suzhou, Jiangsu, China
| | - Huiying Qiu
- Department of Hematology, The First Affiliated Hospital of Soochow University, National Clinical Research Center for Hematologic Diseases, Suzhou, Jiangsu, China
- Jiangsu Institute of Hematology, Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, Jiangsu, China
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7
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Cassim Bawa FN, Hu S, Gopoju R, Shiyab A, Mongan K, Xu Y, Pan X, Clark A, Wang H, Zhang Y. Adipocyte retinoic acid receptor α prevents obesity and steatohepatitis by regulating energy expenditure and lipogenesis. Obesity (Silver Spring) 2024; 32:120-130. [PMID: 37873741 PMCID: PMC10840967 DOI: 10.1002/oby.23929] [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: 05/23/2023] [Revised: 08/13/2023] [Accepted: 09/03/2023] [Indexed: 10/25/2023]
Abstract
OBJECTIVE The adipose tissue-liver axis is a major regulator of the pathogenesis of nonalcoholic fatty liver disease (NAFLD). Retinoic acid signaling plays an important role in development and metabolism. However, little is known about the role of adipose retinoic acid signaling in the development of obesity-associated NAFLD. In this work, the aim was to investigate whether and how retinoic acid receptor alpha (RARα) regulated the development of obesity and NAFLD. METHODS RARα expression in adipose tissue of db/db or ob/ob mice was determined. Rarαfl/fl mice and adipocyte-specific Rarα-/- (RarαAdi-/- ) mice were fed a chow diet for 1 year or high-fat diet (HFD) for 20 weeks. Primary adipocytes and primary hepatocytes were co-cultured. Metabolic regulation and inflammatory response were characterized. RESULTS RARα expression was reduced in adipose tissue of db/db or ob/ob mice. RarαAdi-/- mice had increased obesity and steatohepatitis (NASH) when fed a chow diet or HFD. Loss of adipocyte RARα induced lipogenesis and inflammation in adipose tissue and the liver and reduced thermogenesis. In the co-culture studies, loss of RARα in adipocytes induced inflammatory and lipogenic programs in hepatocytes. CONCLUSIONS The data demonstrate that RARα in adipocytes prevents obesity and NASH via inhibiting lipogenesis and inflammation and inducing energy expenditure.
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Affiliation(s)
- Fathima N. Cassim Bawa
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH, 44272, USA
| | - Shuwei Hu
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH, 44272, USA
| | - Raja Gopoju
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH, 44272, USA
| | - Amy Shiyab
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH, 44272, USA
| | - Kai Mongan
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH, 44272, USA
| | - Yanyong Xu
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH, 44272, USA
| | - Xiaoli Pan
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH, 44272, USA
| | - Alyssa Clark
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH, 44272, USA
| | - Hui Wang
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH, 44272, USA
| | - Yanqiao Zhang
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH, 44272, USA
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8
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Kirkham JK, Liu YC, Foy SG, Ma J, Gheorghe G, Furtado LV, Popescu MI, Klco JM, Karol SE, Blackburn PR. Clinical and genomic characterization of an ATRA-insensitive acute promyelocytic leukemia variant with a FNDC3B::RARB fusion. Genes Chromosomes Cancer 2023; 62:617-623. [PMID: 37283355 DOI: 10.1002/gcc.23180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/22/2023] [Accepted: 05/23/2023] [Indexed: 06/08/2023] Open
Abstract
The promyelocytic leukemia-retinoic acid receptor-α (PML::RARA) fusion is the hallmark of acute promyelocytic leukemia (APL) and is observed in over 95% of APL cases. RARA and homologous receptors RARB and RARG are occasionally fused to other gene partners, which differentially affect sensitivity to targeted therapies. Most APLs without RARA fusions have rearrangements involving RARG or RARB, both of which frequently show resistance to all-trans-retinoic acid (ATRA) and/or multiagent chemotherapy for acute myeloid leukemia (AML). We present a 13-year-old male diagnosed with variant APL with a novel FNDC3B::RARB in-frame fusion that showed no response to ATRA but responded well to conventional AML therapy. While FNDC3B has been identified as a rare RARA translocation partner in ATRA-sensitive variant APL, it has never been reported as a fusion partner with RARB and it is only the second known fusion partner with RARB in variant APL. We also show that this novel fusion confers an RNA expression signature that is similar to APL, despite clinical resistance to ATRA monotherapy.
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MESH Headings
- Male
- Humans
- Adolescent
- Leukemia, Promyelocytic, Acute/drug therapy
- Leukemia, Promyelocytic, Acute/genetics
- Leukemia, Promyelocytic, Acute/metabolism
- Translocation, Genetic
- Tretinoin/therapeutic use
- Leukemia, Myeloid, Acute/genetics
- Retinoic Acid Receptor alpha/genetics
- Genomics
- Oncogene Proteins, Fusion/genetics
- Fibronectins/genetics
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Affiliation(s)
- Justin K Kirkham
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Yen-Chun Liu
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Scott G Foy
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Jing Ma
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Gabriela Gheorghe
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Larissa V Furtado
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Marcela I Popescu
- Department of Pediatric Hematology and Oncology, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, Tennessee, USA
| | - Jeffery M Klco
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Seth E Karol
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Patrick R Blackburn
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
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9
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Larange A, Takazawa I, Kakugawa K, Thiault N, Ngoi S, Olive ME, Iwaya H, Seguin L, Vicente-Suarez I, Becart S, Verstichel G, Balancio A, Altman A, Chang JT, Taniuchi I, Lillemeier B, Kronenberg M, Myers SA, Cheroutre H. A regulatory circuit controlled by extranuclear and nuclear retinoic acid receptor α determines T cell activation and function. Immunity 2023; 56:2054-2069.e10. [PMID: 37597518 PMCID: PMC10552917 DOI: 10.1016/j.immuni.2023.07.017] [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] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 03/08/2023] [Accepted: 07/25/2023] [Indexed: 08/21/2023]
Abstract
Ligation of retinoic acid receptor alpha (RARα) by RA promotes varied transcriptional programs associated with immune activation and tolerance, but genetic deletion approaches suggest the impact of RARα on TCR signaling. Here, we examined whether RARα would exert roles beyond transcriptional regulation. Specific deletion of the nuclear isoform of RARα revealed an RARα isoform in the cytoplasm of T cells. Extranuclear RARα was rapidly phosphorylated upon TCR stimulation and recruited to the TCR signalosome. RA interfered with extranuclear RARα signaling, causing suboptimal TCR activation while enhancing FOXP3+ regulatory T cell conversion. TCR activation induced the expression of CRABP2, which translocates RA to the nucleus. Deletion of Crabp2 led to increased RA in the cytoplasm and interfered with signalosome-RARα, resulting in impaired anti-pathogen immunity and suppressed autoimmune disease. Our findings underscore the significance of subcellular RA/RARα signaling in T cells and identify extranuclear RARα as a component of the TCR signalosome and a determinant of immune responses.
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Affiliation(s)
- Alexandre Larange
- Center for Autoimmunity and Inflammation, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; Center for Cancer Immunotherapy, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - Ikuo Takazawa
- Center for Autoimmunity and Inflammation, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; Center for Cancer Immunotherapy, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - Kiyokazu Kakugawa
- Laboratory for Immune Crosstalk, RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehiro, Tsurumi-ku, Yokohama 230-0045, Japan
| | - Nicolas Thiault
- Center for Autoimmunity and Inflammation, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; Center for Cancer Immunotherapy, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - SooMun Ngoi
- School of Biological Sciences, University of California San Diego, La Jolla, CA 92093, USA
| | - Meagan E Olive
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142, USA
| | - Hitoshi Iwaya
- Center for Autoimmunity and Inflammation, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; Center for Cancer Immunotherapy, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - Laetitia Seguin
- Center for Autoimmunity and Inflammation, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; Center for Cancer Immunotherapy, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - Ildefonso Vicente-Suarez
- Center for Autoimmunity and Inflammation, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; Center for Cancer Immunotherapy, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - Stephane Becart
- Center for Autoimmunity and Inflammation, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; Center for Cancer Immunotherapy, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - Greet Verstichel
- Center for Autoimmunity and Inflammation, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; Center for Cancer Immunotherapy, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - Ann Balancio
- Center for Autoimmunity and Inflammation, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; Center for Cancer Immunotherapy, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - Amnon Altman
- Center for Autoimmunity and Inflammation, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; Center for Cancer Immunotherapy, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - John T Chang
- School of Biological Sciences, University of California San Diego, La Jolla, CA 92093, USA
| | - Ichiro Taniuchi
- Laboratory for Transcriptional Regulation, RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehiro, Tsurumi-ku, Yokohama 230-0045, Japan
| | - Bjorn Lillemeier
- Immunobiology and Microbial Pathogenesis Laboratory, IMPL-L, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Mitchell Kronenberg
- Center for Autoimmunity and Inflammation, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; School of Biological Sciences, University of California San Diego, La Jolla, CA 92093, USA; Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - Samuel A Myers
- Center for Autoimmunity and Inflammation, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142, USA; Laboratory for Immunochemical Circuits, La Jolla Institute for Immunology, La Jolla, CA 92037, USA.
| | - Hilde Cheroutre
- Center for Autoimmunity and Inflammation, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; Center for Cancer Immunotherapy, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; Laboratory for Immune Crosstalk, RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehiro, Tsurumi-ku, Yokohama 230-0045, Japan.
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10
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Zhang W, Peng Q, Zhang X, Guo J, Tong H, Li S. Vitamin A Promotes the Repair of Mice Skeletal Muscle Injury through RARα. Nutrients 2023; 15:3674. [PMID: 37686706 PMCID: PMC10490340 DOI: 10.3390/nu15173674] [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] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 08/17/2023] [Accepted: 08/18/2023] [Indexed: 09/10/2023] Open
Abstract
Vitamin A (VitA) is an important fat-soluble vitamin which plays an important role in cell growth and individual development. However, the effect of VitA on the repair process of muscle injury and its molecular mechanism are still unclear. In this study, VitA and RA were first added to the culture medium of differentiated cells. We then detected cell differentiation marker proteins and myotube fusion. Moreover, the effects of VitA on RARα expression and nuclear translocation were further examined. The results showed that VitA significantly promoted the differentiation of C2C12, and the expression of RARα was significantly increased. Furthermore, VitA was injected into skeletal muscle injury in mice. HE staining and Western Blot results showed that VitA could significantly accelerate the repair of skeletal muscle injury and VitA increase the expression of RARα in mice. This study provides a theoretical basis for elucidating the regulation mechanism of VitA-mediated muscle development and the development of therapeutic drugs for muscle diseases in animals.
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Affiliation(s)
- Wenjia Zhang
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China; (W.Z.); (Q.P.); (X.Z.); (J.G.); (H.T.)
- Laboratory of Cell and Developmental Biology, Northeast Agricultural University, Harbin 150030, China
| | - Qingyun Peng
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China; (W.Z.); (Q.P.); (X.Z.); (J.G.); (H.T.)
- Laboratory of Cell and Developmental Biology, Northeast Agricultural University, Harbin 150030, China
| | - Xiaoyu Zhang
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China; (W.Z.); (Q.P.); (X.Z.); (J.G.); (H.T.)
- Laboratory of Cell and Developmental Biology, Northeast Agricultural University, Harbin 150030, China
| | - Jiaxu Guo
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China; (W.Z.); (Q.P.); (X.Z.); (J.G.); (H.T.)
- Laboratory of Cell and Developmental Biology, Northeast Agricultural University, Harbin 150030, China
| | - Huili Tong
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China; (W.Z.); (Q.P.); (X.Z.); (J.G.); (H.T.)
- Laboratory of Cell and Developmental Biology, Northeast Agricultural University, Harbin 150030, China
| | - Shuang Li
- Key Laboratory of Animal Cellular and Genetics Engineering of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China; (W.Z.); (Q.P.); (X.Z.); (J.G.); (H.T.)
- Laboratory of Cell and Developmental Biology, Northeast Agricultural University, Harbin 150030, China
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11
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Zolfaghari R, Bonzo JA, Gonzalez FJ, Ross AC. Hepatocyte Nuclear Factor 4α (HNF4α) Plays a Controlling Role in Expression of the Retinoic Acid Receptor β ( RARβ) Gene in Hepatocytes. Int J Mol Sci 2023; 24:8608. [PMID: 37239961 PMCID: PMC10218549 DOI: 10.3390/ijms24108608] [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] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/03/2023] [Accepted: 05/07/2023] [Indexed: 05/28/2023] Open
Abstract
HNF4α, a member of the nuclear receptor superfamily, regulates the genes involved in lipid and glucose metabolism. The expression of the RARβ gene in the liver of HNF4α knock-out mice was higher versus wildtype controls, whereas oppositely, RARβ promoter activity was 50% reduced by the overexpression of HNF4α in HepG2 cells, and treatment with retinoic acid (RA), a major metabolite of vitamin A, increased RARβ promoter activity 15-fold. The human RARβ2 promoter contains two DR5 and one DR8 binding motifs, as RA response elements (RARE) proximal to the transcription start site. While DR5 RARE1 was previously reported to be responsive to RARs but not to other nuclear receptors, we show here that mutation in DR5 RARE2 suppresses the promoter response to HNF4α and RARα/RXRα. Mutational analysis of ligand-binding pocket amino acids shown to be critical for fatty acid (FA) binding indicated that RA may interfere with interactions of FA carboxylic acid headgroups with side chains of S190 and R235, and the aliphatic group with I355. These results could explain the partial suppression of HNF4α transcriptional activation toward gene promoters that lack RARE, including APOC3 and CYP2C9, while conversely, HNF4α may bind to RARE sequences in the promoter of the genes such as CYP26A1 and RARβ, activating these genes in the presence of RA. Thus, RA could act as either an antagonist towards HNF4α in genes lacking RAREs, or as an agonist for RARE-containing genes. Overall, RA may interfere with the function of HNF4α and deregulate HNF4α targets genes, including the genes important for lipid and glucose metabolism.
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Affiliation(s)
- Reza Zolfaghari
- Department of Nutritional Sciences, Pennsylvania State University, University Park, PA 16802, USA;
| | - Jessica A. Bonzo
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20814, USA
| | - Frank J. Gonzalez
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20814, USA
| | - A. Catharine Ross
- Department of Nutritional Sciences, Pennsylvania State University, University Park, PA 16802, USA;
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12
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Wu CY, Yang SW, Li YL, Dong XY, Yu RH, Zhang L, Shang BJ, Shi PL, Zhu ZM. [Variant acute promyelocytic leukemia with IRF2BP2-RARA fusion gene: a case report and literature review]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:251-254. [PMID: 37356989 PMCID: PMC10119716 DOI: 10.3760/cma.j.issn.0253-2727.2023.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Indexed: 06/27/2023]
Affiliation(s)
- C Y Wu
- Institute of Hematology of Henan Provincial People's Hospital, Henan Key Laboratory of Hematopathology, Henan Provincial Engineering Research Center of CAR-T Cell Treatment and Transformation, Henan Key Laboratory of Stem Cell Differentiation and Modification, Zhengzhou 450003, China
| | - S W Yang
- Institute of Hematology of Henan Provincial People's Hospital, Henan Key Laboratory of Hematopathology, Henan Provincial Engineering Research Center of CAR-T Cell Treatment and Transformation, Henan Key Laboratory of Stem Cell Differentiation and Modification, Zhengzhou 450003, China
| | - Y L Li
- Institute of Hematology of Henan Provincial People's Hospital, Henan Key Laboratory of Hematopathology, Henan Provincial Engineering Research Center of CAR-T Cell Treatment and Transformation, Henan Key Laboratory of Stem Cell Differentiation and Modification, Zhengzhou 450003, China
| | - X Y Dong
- Institute of Hematology of Henan Provincial People's Hospital, Henan Key Laboratory of Hematopathology, Henan Provincial Engineering Research Center of CAR-T Cell Treatment and Transformation, Henan Key Laboratory of Stem Cell Differentiation and Modification, Zhengzhou 450003, China
| | - R H Yu
- Institute of Hematology of Henan Provincial People's Hospital, Henan Key Laboratory of Hematopathology, Henan Provincial Engineering Research Center of CAR-T Cell Treatment and Transformation, Henan Key Laboratory of Stem Cell Differentiation and Modification, Zhengzhou 450003, China
| | - L Zhang
- Institute of Hematology of Henan Provincial People's Hospital, Henan Key Laboratory of Hematopathology, Henan Provincial Engineering Research Center of CAR-T Cell Treatment and Transformation, Henan Key Laboratory of Stem Cell Differentiation and Modification, Zhengzhou 450003, China
| | - B J Shang
- Institute of Hematology of Henan Provincial People's Hospital, Henan Key Laboratory of Hematopathology, Henan Provincial Engineering Research Center of CAR-T Cell Treatment and Transformation, Henan Key Laboratory of Stem Cell Differentiation and Modification, Zhengzhou 450003, China
| | - P L Shi
- Henan Eye Institute, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - Z M Zhu
- Institute of Hematology of Henan Provincial People's Hospital, Henan Key Laboratory of Hematopathology, Henan Provincial Engineering Research Center of CAR-T Cell Treatment and Transformation, Henan Key Laboratory of Stem Cell Differentiation and Modification, Zhengzhou 450003, China
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13
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Hsu CA, Rishi AK, Su-Li X, et al. Retinoid induced apoptosis in leukemia cells through a retinoic acid nuclear receptor-independent pathway. Blood. 1997;89(12):4470-4479. Blood 2023; 141:808. [PMID: 36795446 DOI: 10.1182/blood.2022017469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
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14
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Poplineau M, Platet N, Mazuel A, Hérault L, N’Guyen L, Koide S, Nakajima-Takagi Y, Kuribayashi W, Carbuccia N, Haboub L, Vernerey J, Oshima M, Birnbaum D, Iwama A, Duprez E. Noncanonical EZH2 drives retinoic acid resistance of variant acute promyelocytic leukemias. Blood 2022; 140:2358-2370. [PMID: 35984905 PMCID: PMC10653050 DOI: 10.1182/blood.2022015668] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 07/31/2022] [Indexed: 11/20/2022] Open
Abstract
Cancer cell heterogeneity is a major driver of therapy resistance. To characterize resistant cells and their vulnerabilities, we studied the PLZF-RARA variant of acute promyelocytic leukemia, resistant to retinoic acid (RA), using single-cell multiomics. We uncovered transcriptional and chromatin heterogeneity in leukemia cells. We identified a subset of cells resistant to RA with proliferation, DNA replication, and repair signatures that depend on a fine-tuned E2F transcriptional network targeting the epigenetic regulator enhancer of zeste homolog 2 (EZH2). Epigenomic and functional analyses validated the driver role of EZH2 in RA resistance. Targeting pan-EZH2 activities (canonical/noncanonical) was necessary to eliminate leukemia relapse-initiating cells, which underlies a dependency of resistant cells on an EZH2 noncanonical activity and the necessity to degrade EZH2 to overcome resistance. Our study provides critical insights into the mechanisms of RA resistance that allow us to eliminate treatment-resistant leukemia cells by targeting EZH2, thus highlighting a potential targeted therapy approach. Beyond RA resistance and acute promyelocytic leukemia context, our study also demonstrates the power of single-cell multiomics to identify, characterize, and clear therapy-resistant cells.
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Affiliation(s)
- Mathilde Poplineau
- Epigenetic Control of Normal and Malignant Hematopoiesis, CRCM, Aix Marseille University, CNRS UMR7258, INSERM U1068, Institut Paoli-Calmettes, Marseille, France
- Department of Cellular and Molecular Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
- Equipe Labellisée Ligue Nationale Contre le Cancer
| | - Nadine Platet
- Epigenetic Control of Normal and Malignant Hematopoiesis, CRCM, Aix Marseille University, CNRS UMR7258, INSERM U1068, Institut Paoli-Calmettes, Marseille, France
- Equipe Labellisée Ligue Nationale Contre le Cancer
| | - Adrien Mazuel
- Epigenetic Control of Normal and Malignant Hematopoiesis, CRCM, Aix Marseille University, CNRS UMR7258, INSERM U1068, Institut Paoli-Calmettes, Marseille, France
- Equipe Labellisée Ligue Nationale Contre le Cancer
| | - Léonard Hérault
- Epigenetic Control of Normal and Malignant Hematopoiesis, CRCM, Aix Marseille University, CNRS UMR7258, INSERM U1068, Institut Paoli-Calmettes, Marseille, France
- Equipe Labellisée Ligue Nationale Contre le Cancer
- MABioS, I2M, Aix Marseille University,CNRS UMR7373, Marseille, France
| | - Lia N’Guyen
- Epigenetic Control of Normal and Malignant Hematopoiesis, CRCM, Aix Marseille University, CNRS UMR7258, INSERM U1068, Institut Paoli-Calmettes, Marseille, France
- Equipe Labellisée Ligue Nationale Contre le Cancer
| | - Shuhei Koide
- Department of Cellular and Molecular Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
- Division of Stem Cell and Molecular Medicine, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Yaeko Nakajima-Takagi
- Department of Cellular and Molecular Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
- Division of Stem Cell and Molecular Medicine, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Wakako Kuribayashi
- Department of Cellular and Molecular Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
- Division of Stem Cell and Molecular Medicine, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Nadine Carbuccia
- Predictive Oncology Laboratory, CRCM, Aix Marseille University, CNRS UMR7258, INSERM 1068, Institut Paoli-Calmettes, Marseille, France
| | - Loreen Haboub
- Epigenetic Control of Normal and Malignant Hematopoiesis, CRCM, Aix Marseille University, CNRS UMR7258, INSERM U1068, Institut Paoli-Calmettes, Marseille, France
- Equipe Labellisée Ligue Nationale Contre le Cancer
| | - Julien Vernerey
- Epigenetic Control of Normal and Malignant Hematopoiesis, CRCM, Aix Marseille University, CNRS UMR7258, INSERM U1068, Institut Paoli-Calmettes, Marseille, France
| | - Motohiko Oshima
- Department of Cellular and Molecular Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
- Division of Stem Cell and Molecular Medicine, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Daniel Birnbaum
- Predictive Oncology Laboratory, CRCM, Aix Marseille University, CNRS UMR7258, INSERM 1068, Institut Paoli-Calmettes, Marseille, France
| | - Atsushi Iwama
- Department of Cellular and Molecular Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
- Division of Stem Cell and Molecular Medicine, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Estelle Duprez
- Epigenetic Control of Normal and Malignant Hematopoiesis, CRCM, Aix Marseille University, CNRS UMR7258, INSERM U1068, Institut Paoli-Calmettes, Marseille, France
- Equipe Labellisée Ligue Nationale Contre le Cancer
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15
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Abstract
Acute promyelocytic leukemia (APL) is associated with severe coagulopathy leading to rapid morbidity and mortality if left untreated. The definitive diagnosis of APL is made by identifying a balanced reciprocal translocation between chromosomes 15 and 17. This t(15;17) results in a fusion transcript of promyelocytic leukemia (PML) and retinoic acid receptor alpha (RARA) genes and the expression of a functional PML/RARA protein. Detection of a fused PML/RARA genomic DNA sequence using fluorescence in situ hybridization (FISH) or by detection of the PML/RARA fusion transcript via reverse transcriptase polymerase chain reaction (RT-PCR) has revolutionized the diagnosis and monitoring of APL. Once confirmed, APL is cured in over 90% of cases, making it the most curable subtype of acute leukemia today. Patients with low-risk APL are successfully treated using a chemotherapy-free combination of all-trans retinoic acid and arsenic trioxide (ATO). In this review, we explore the work that has gone into the modern-day diagnosis and highly successful treatment of this once devastating leukemia.
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Affiliation(s)
- Victoria Korsos
- Division of Hematology, Jewish General Hospital, Montreal, Canada
- Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada
| | - Wilson H Miller
- Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada
- Gerald Bronfman Department of Oncology, Jewish General Hospital, Montreal, Canada
- Lady Davis Institute for Medical Research, Montreal, Canada
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16
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Cassim Bawa FN, Gopoju R, Xu Y, Hu S, Zhu Y, Chen S, Jadhav K, Zhang Y. Retinoic Acid Receptor Alpha (RARα) in Macrophages Protects from Diet-Induced Atherosclerosis in Mice. Cells 2022; 11:3186. [PMID: 36291054 PMCID: PMC9600071 DOI: 10.3390/cells11203186] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/07/2022] [Accepted: 10/09/2022] [Indexed: 08/13/2023] Open
Abstract
Retinoic acid signaling plays an important role in regulating lipid metabolism and inflammation. However, the role of retinoic acid receptor alpha (RARα) in atherosclerosis remains to be determined. In the current study, we investigated the role of macrophage RARα in the development of atherosclerosis. Macrophages isolated from myeloid-specific Rarα-/- (RarαMac-/-) mice showed increased lipid accumulation and inflammation and reduced cholesterol efflux compared to Rarαfl/fl (control) mice. All-trans retinoic acid (AtRA) induced ATP-binding cassette subfamily A member 1 (Abca1) and Abcg1 expression and cholesterol efflux in both RarαMac-/- mice and Rarαfl/fl mice. In Ldlr-/- mice, myeloid ablation of RARα significantly reduced macrophage Abca1 and Abcg1 expression and cholesterol efflux, induced inflammatory genes, and aggravated Western diet-induced atherosclerosis. Our data demonstrate that macrophage RARα protects against atherosclerosis, likely via inducing cholesterol efflux and inhibiting inflammation.
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Affiliation(s)
- Fathima N. Cassim Bawa
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH 44272, USA
- School of Biomedical Sciences, Kent State University, Kent, OH 44240, USA
| | - Raja Gopoju
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH 44272, USA
| | - Yanyong Xu
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH 44272, USA
| | - Shuwei Hu
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH 44272, USA
| | - Yingdong Zhu
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH 44272, USA
- School of Biomedical Sciences, Kent State University, Kent, OH 44240, USA
| | - Shaoru Chen
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH 44272, USA
| | - Kavita Jadhav
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH 44272, USA
| | - Yanqiao Zhang
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH 44272, USA
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17
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Suzuki K, Kim JW, Nosyreva E, Kavalali ET, Monteggia LM. Convergence of distinct signaling pathways on synaptic scaling to trigger rapid antidepressant action. Cell Rep 2021; 37:109918. [PMID: 34731624 PMCID: PMC8590465 DOI: 10.1016/j.celrep.2021.109918] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 05/10/2021] [Accepted: 10/11/2021] [Indexed: 11/23/2022] Open
Abstract
Ketamine is a noncompetitive glutamatergic N-methyl-d-aspartate receptor (NMDAR) antagonist that exerts rapid antidepressant effects. Preclinical studies identify eukaryotic elongation factor 2 kinase (eEF2K) signaling as essential for the rapid antidepressant action of ketamine. Here, we combine genetic, electrophysiological, and pharmacological strategies to investigate the role of eEF2K in synaptic function and find that acute, but not chronic, inhibition of eEF2K activity induces rapid synaptic scaling in the hippocampus. Retinoic acid (RA) signaling also elicits a similar form of rapid synaptic scaling in the hippocampus, which we observe is independent of eEF2K functioni. The RA signaling pathway is not required for ketamine-mediated antidepressant action; however, direct activation of the retinoic acid receptor α (RARα) evokes rapid antidepressant action resembling ketamine. Our findings show that ketamine and RARα activation independently elicit a similar form of multiplicative synaptic scaling that is causal for rapid antidepressant action.
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Affiliation(s)
- Kanzo Suzuki
- Department of Pharmacology and the Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN 37232, USA
| | - Ji-Woon Kim
- Department of Pharmacology and the Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN 37232, USA
| | - Elena Nosyreva
- Department of Neuroscience, University of Texas Southwestern Medical Center, Dallas, TX 75390-9111, USA
| | - Ege T Kavalali
- Department of Pharmacology and the Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN 37232, USA.
| | - Lisa M Monteggia
- Department of Pharmacology and the Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN 37232, USA.
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18
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Yuan X, Tang H, Wu R, Li X, Jiang H, Liu Z, Zhang Z. Short-Chain Fatty Acids Calibrate RARα Activity Regulating Food Sensitization. Front Immunol 2021; 12:737658. [PMID: 34721398 PMCID: PMC8551578 DOI: 10.3389/fimmu.2021.737658] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 07/07/2021] [Accepted: 09/20/2021] [Indexed: 01/01/2023] Open
Abstract
Gut-microbiota dysbiosis links to allergic diseases. The mechanism of the exacerbation of food allergy caused by gut-microbiota dysbiosis remains unknown. Regulation of retinoic acid receptor alpha (RARα) signaling is critical for gut immune homeostasis. Here we clarified that RARα in dendritic cells (DCs) promotes Th2 cell differentiation. Antibiotics treatment stimulates retinoic acid signaling in mucosal DCs. We found microbiota metabolites short-chain fatty acids (SCFAs) maintain IGF-1 levels in serum and mesenteric lymph nodes. The IGF-1/Akt pathway is essential for regulating the transcription of genes targeted by RARα. And RARα in DCs affects type I interferon (IFN-I) responses through regulating transcription of IFN-α. Our study identifies SCFAs crosstalk with RARα in dendritic cells as a critical modulator that plays a core role in promoting Th2 cells differentiation at a state of modified/disturbed microbiome.
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Affiliation(s)
- Xiefang Yuan
- Inflammation & Allergic Diseases Research Unit, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Hongmei Tang
- Inflammation & Allergic Diseases Research Unit, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Renlan Wu
- Inflammation & Allergic Diseases Research Unit, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Xingjie Li
- Inflammation & Allergic Diseases Research Unit, Affiliated Hospital of Southwest Medical University, Luzhou, China
- The School of Basic Medical Sciences, Southwest Medical University, Luzhou, China
| | - Hongyu Jiang
- Inflammation & Allergic Diseases Research Unit, Affiliated Hospital of Southwest Medical University, Luzhou, China
- The School of Basic Medical Sciences, Southwest Medical University, Luzhou, China
| | - Zhigang Liu
- State Key Laboratory of Respiratory Disease for Allergy at Shenzhen University, Shenzhen University School of Medicine, Shenzhen, China
| | - Zongde Zhang
- Inflammation & Allergic Diseases Research Unit, Affiliated Hospital of Southwest Medical University, Luzhou, China
- The School of Basic Medical Sciences, Southwest Medical University, Luzhou, China
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19
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King D, Foucar CE, Ma V, Benitez L, Perissinotti AJ, Marini BL, Robinson D, Bhave RR, Bixby D. Identification of variant APL translocations PRKAR1A-RARα and ZBTB16-RARα (PLZF-RARα) through the MI-ONCOSEQ platform. Cancer Genet 2021; 258-259:57-60. [PMID: 34534739 DOI: 10.1016/j.cancergen.2021.08.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 07/21/2021] [Accepted: 08/22/2021] [Indexed: 01/01/2023]
Abstract
The cornerstone of management in patients with acute promyelocytic leukemia (APL) is early diagnosis and prompt initiation of treatment with an all-trans retinoic acid (ATRA)-based regimen. Identification of the t(15;17)(PML-RARA) chromosomal translocation through conventional cytogenetics fluorescence in-situ hybridization (FISH) or detection of the promyelocytic leukemia-retinoic acid receptor alpha (PML-RARα) fusion through RT-PCR represent the current standard of care for diagnosing APL. However, about 1-2% of patients with APL have a variant translocation involving other fusion partners with RARα besides PML. These patients present a unique diagnostic and clinical challenge in that conventional cytogenetics in addition to FISH and/or RT-PCR for PML-RARα may fail to identify these clinically relevant genetic lesions leading to an inappropriate diagnosis and treatment. We present two cases of patients who had APL with variant translocations whose bone marrow specimens were sent to the University of Michigan for enrollment in the MI-ONCOSEQ study (HUM00067928) after standard testing failed to identify PML-RARα or t(15;17) despite a phenotypic concern for this diagnosis. In these two patients, whole exome and transcriptome profiling via the MI-ONCOSEQ platform identified a PRKAR1A-RARα fusion in one patient and ZBTB16-RARα fusion in another patient. These cases illustrate the utility of whole exome and transcriptome profiling in diagnosing variant translocations in patients in whom there is a high clinical suspicion for APL based on hematopathology review.
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Affiliation(s)
- Darren King
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Charles E Foucar
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Vincent Ma
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Lydia Benitez
- Department of Pharmacy, Michigan Medicine, Ann Arbor, Michigan, USA
| | | | - Bernard L Marini
- Department of Pharmacy, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Dan Robinson
- Michigan Center for Translational Pathology, Michigan Medicine, Ann Arbor, Michigan, USA
| | - Rupali Roy Bhave
- Division of Hematology and Medical Oncology, Wake Forrest University, Winston-Salem, North Carolina, USA
| | - Dale Bixby
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Michigan Medicine, Ann Arbor, Michigan, USA.
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20
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Barzegar M, Farsani MA, Rafiee M, Amiri V, Parkhihdeh S, Rad F, Mohammadi MH. Acute promyelocytic leukemia derived extracellular vesicles conserve PML-RARα transcript from storage-inflicted degradation: a stable diagnosis tool in APL patients. Ann Hematol 2021; 100:2241-2252. [PMID: 34236496 DOI: 10.1007/s00277-021-04579-9] [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] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 06/15/2021] [Indexed: 10/20/2022]
Abstract
The early death, which is more common in acute promyelocytic leukemia (APL) patients rather than other types of acute myelocytic leukemia (AML) highlights the importance of appropriate diagnostic method for early detection of this disease. The low sensitivity of the conventional methods, low tumor burden in some patients, and the need for bone marrow sampling are some of the diagnostic challenges on the way of proper detection of APL. Given these, we aimed to compare the efficacy of extracellular vesicles (EVs), as a diagnostic tool, with the existing methods. RT-PCR, qPCR, and flow cytometry were applied on EVs and their corresponding associated cellular component collected from 18 APL new cases, 23 patients with minimal residual disease (MRD), and NB4 cell line. RT-PCR results were positive in both cellular and vesicular components of all new cases, NB4 cells, and EVs in contrary to MRD cases. Normalized copy numbers (NCN) of PML-RARα were 5100 and 3950 for cell and EVs, respectively (p < 0.05). There was a significant difference in the NCN of PML-RARα between cells and EVs in BM samples. Investigating the effect of storage at room temperature revealed that PML-RARα level was retained near to the baseline level in EVs, but there was a significant reduction in its copy number in the cellular component during 7 days. Taken together, given to the acceptable stability, EVs could be introduced as a non-invasive liquid biopsy that alongside existing methods could remarkably change the paradigm of APL diagnostic approaches.
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Affiliation(s)
- Mohieddin Barzegar
- Laboratory Hematology and Blood Banking, School of Allied Medical Science, Shahid Beheshti University of Medical Sciences, Darband St, Qods Sq, Tehran, Iran
| | - Mehdi Allahbakhshian Farsani
- Laboratory Hematology and Blood Banking, School of Allied Medical Science, Shahid Beheshti University of Medical Sciences, Darband St, Qods Sq, Tehran, Iran
- HSCT Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Rafiee
- Laboratory Hematology and Blood Banking, School of Allied Medical Science, Shahid Beheshti University of Medical Sciences, Darband St, Qods Sq, Tehran, Iran
| | - Vahid Amiri
- Laboratory Hematology and Blood Banking, School of Allied Medical Science, Shahid Beheshti University of Medical Sciences, Darband St, Qods Sq, Tehran, Iran
| | - Sayeh Parkhihdeh
- HSCT Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fariba Rad
- Department of Hematology and Blood Transfusion, School of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Mohammad Hossein Mohammadi
- Laboratory Hematology and Blood Banking, School of Allied Medical Science, Shahid Beheshti University of Medical Sciences, Darband St, Qods Sq, Tehran, Iran.
- HSCT Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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21
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Tan Y, Wang X, Song H, Zhang Y, Zhang R, Li S, Jin W, Chen S, Fang H, Chen Z, Wang K. A PML/RARα direct target atlas redefines transcriptional deregulation in acute promyelocytic leukemia. Blood 2021; 137:1503-1516. [PMID: 32854112 PMCID: PMC7976511 DOI: 10.1182/blood.2020005698] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 08/20/2020] [Indexed: 12/12/2022] Open
Abstract
Transcriptional deregulation initiated by oncogenic fusion proteins plays a vital role in leukemia. The prevailing view is that the oncogenic fusion protein promyelocytic leukemia/retinoic acid receptor-α (PML/RARα), generated by the chromosome translocation t(15;17), functions as a transcriptional repressor in acute promyelocytic leukemia (APL). Here, we provide rich evidence of how PML/RARα drives oncogenesis through both repressive and activating functions, particularly the importance of the newly identified activation role for the leukemogenesis of APL. The activating function of PML/RARα is achieved by recruiting both abundant P300 and HDAC1 and by the formation of super-enhancers. All-trans retinoic acid and arsenic trioxide, 2 widely used drugs in APL therapy, exert synergistic effects on controlling super-enhancer-associated PML/RARα-regulated targets in APL cells. We use a series of in vitro and in vivo experiments to demonstrate that PML/RARα-activated target gene GFI1 is necessary for the maintenance of APL cells and that PML/RARα, likely oligomerized, transactivates GFI1 through chromatin conformation at the super-enhancer region. Finally, we profile GFI1 targets and reveal the interplay between GFI1 and PML/RARα on chromatin in coregulating target genes. Our study provides genomic insight into the dual role of fusion transcription factors in transcriptional deregulation to drive leukemia development, highlighting the importance of globally dissecting regulatory circuits.
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Affiliation(s)
- Yun Tan
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaoling Wang
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China; and
| | - Huan Song
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yi Zhang
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Rongsheng Zhang
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China; and
| | - Shufen Li
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wen Jin
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Saijuan Chen
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hai Fang
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhu Chen
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Sino-French Research Center for Life Sciences and Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Kankan Wang
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China; and
- Sino-French Research Center for Life Sciences and Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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22
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Emde B, Kreher H, Bäumer N, Bäumer S, Bouwes D, Tickenbrock L. Microfluidic-Based Detection of AML-Specific Biomarkers Using the Example of Promyelocyte Leukemia. Int J Mol Sci 2020; 21:ijms21238942. [PMID: 33255664 PMCID: PMC7728129 DOI: 10.3390/ijms21238942] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 11/19/2020] [Accepted: 11/23/2020] [Indexed: 01/22/2023] Open
Abstract
A microfluidic assay for the detection of promyelocytic leukemia (PML)-retinoic acid receptor α (RARα) fusion protein was developed. This microfluidic-based system can be used for rapid personalized differential diagnosis of acute promyelocyte leukemia (APL) with the aim of early initiation of individualized therapy. The fusion protein PML-RARα occurs in 95% of acute promyelocytic leukemia cases and is considered as diagnostically relevant. The fusion protein is formed as a result of translocation t(15,17) and is detected in the laboratory by fluorescence in situ hybridization (FISH) or reverse transcriptase polymerase chain reaction (RT-PCR). Diagnostic methods require many laboratory steps with specialized staff. The developed microfluidic assay includes a sandwich enzyme-linked immunosorbent assay (ELISA) system for PML-RARα on surface of magnetic microparticles in a microfluidic chip. A rapid detection of PML-RARα in cell lysates is achieved in less than one hour. A biotinylated PML-antibody on the surface of magnetic streptavidin coated microparticles is used as capture antibody. The bound translocation product is detected by a RARα antibody conjugated with horseradish peroxidase and the substrate QuantaRed. The analysis is performed in microfluidic channels which involves automated liquid processing with stringent washing and short incubation times. The results of the developed assay show that cell lysates of PML-RARα-positive cells (NB-4) can be clearly distinguished from PML-RARα-negative cells (HL-60, MV4-11).
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MESH Headings
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/isolation & purification
- Granulocyte Precursor Cells/metabolism
- Granulocyte Precursor Cells/pathology
- Humans
- In Situ Hybridization, Fluorescence/methods
- Leukemia, Promyelocytic, Acute/diagnosis
- Leukemia, Promyelocytic, Acute/genetics
- Leukemia, Promyelocytic, Acute/pathology
- Microfluidics/methods
- Oncogene Proteins, Fusion/genetics
- Oncogene Proteins, Fusion/isolation & purification
- Precision Medicine
- Promyelocytic Leukemia Protein/genetics
- Retinoic Acid Receptor alpha/genetics
- Translocation, Genetic/genetics
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Affiliation(s)
- Benedikt Emde
- Department Hamm 1, Hamm-Lippstadt University of Applied Science, 59063 Hamm, Germany;
- Correspondence: ; Tel.: +49-(0)2381-8789-443
| | - Heike Kreher
- Micronit GmbH, 44263 Dortmund, Germany; (H.K.); (D.B.)
| | - Nicole Bäumer
- Department of Medicine A, Hematology and Oncology, University of Muenster, 48149 Muenster, Germany; (N.B.); (S.B.)
| | - Sebastian Bäumer
- Department of Medicine A, Hematology and Oncology, University of Muenster, 48149 Muenster, Germany; (N.B.); (S.B.)
| | | | - Lara Tickenbrock
- Department Hamm 1, Hamm-Lippstadt University of Applied Science, 59063 Hamm, Germany;
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23
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Steinauer N, Guo C, Zhang J. The transcriptional corepressor CBFA2T3 inhibits all- trans-retinoic acid-induced myeloid gene expression and differentiation in acute myeloid leukemia. J Biol Chem 2020; 295:8887-8900. [PMID: 32434928 PMCID: PMC7335779 DOI: 10.1074/jbc.ra120.013042] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 05/17/2020] [Indexed: 01/10/2023] Open
Abstract
CBFA2/RUNX1 partner transcriptional co-repressor 3 (CBFA2T3, also known as MTG16 or ETO2) is a myeloid translocation gene family protein that functions as a master transcriptional corepressor in hematopoiesis. Recently, it has been shown that CBFA2T3 maintains leukemia stem cell gene expression and promotes relapse in acute myeloid leukemia (AML). However, a role for CBFA2T3 in myeloid differentiation of AML has not been reported. Here, we show that CBFA2T3 represses retinoic acid receptor (RAR) target gene expression and inhibits all-trans-retinoic acid (ATRA)-induced myeloid differentiation of AML cells. ChIP-Seq revealed that CBFA2T3 targets the RARα/RXRα cistrome in U937 AML cells, predominantly at myeloid-specific enhancers associated with terminal differentiation. CRISPR/Cas9-mediated abrogation of CBFA2T3 resulted in spontaneous and ATRA-induced activation of myeloid-specific genes in a manner correlated with myeloid differentiation. Importantly, these effects were reversed by CBFA2T3 re-expression. Mechanistic studies showed that CBFA2T3 inhibits RAR target gene transcription by acting at an early step to regulate histone acetyltransferase recruitment, histone acetylation, and chromatin accessibility at RARα target sites, independently of the downstream, RAR-mediated steps of transcription. Finally, we validated the inhibitory effect of CBFA2T3 on RAR in multiple AML subtypes and patient samples. To our knowledge, this is the first study to show that CBFA2T3 down-regulation is both necessary and sufficient for enhancing ATRA-induced myeloid gene expression and differentiation of AML cells. Our findings suggest that CBFA2T3 can serve as a potential target for enhancing AML responsiveness to ATRA differentiation therapies.
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Affiliation(s)
- Nickolas Steinauer
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri, USA
| | - Chun Guo
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri, USA
| | - Jinsong Zhang
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, Missouri, USA.
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24
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Tay Za K, Jackson N, Chin EFM. Tetraploid/near-tetraploid acute promyelocytic leukaemia with double (15;17) translocation. Malays J Pathol 2020; 42:127-130. [PMID: 32342942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A 57-year-old man presented with intermittent fever and bleeding following dental surgery. Peripheral smear and bone marrow aspirate exhibited unusually large and bizarre-looking abnormal cells which were found to be myeloblasts with aberrant CD56 and CD2 expression on immunophenotyping. Fluorescence in situ hybridization analysis revealed an extra RARA gene rearrangement. This finding correlated well with a near-tetraploid karyotype with double t(15;17)(q22;q21). Bcr-3 type PML/ RARA copies were identified in reverse transcriptase-polymerase chain reaction. The diagnosis of near-tetraploid acute promyelocytic leukaemia (APML) was established. The patient was treated with all-trans retinoic acid and idarubicin and six weeks later achieved complete remission. Tetraploid/ near-tetraploid APML is exceedingly rare. It is a distinct cytogenetic subgroup with unique clinical and biological features as highlighted by atypical morphology, frequent CD2 expression and association with the bcr-3 type PML/RARA fusion transcripts. Early recognition of this rare entity is essential for timely and appropriate treatment.
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MESH Headings
- Chromosomes, Human, Pair 15/genetics
- Chromosomes, Human, Pair 17/genetics
- Humans
- Leukemia, Promyelocytic, Acute/genetics
- Leukemia, Promyelocytic, Acute/pathology
- Male
- Middle Aged
- Oncogene Fusion
- Oncogene Proteins, Fusion/genetics
- Promyelocytic Leukemia Protein/genetics
- Retinoic Acid Receptor alpha/genetics
- Tetraploidy
- Translocation, Genetic/genetics
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Affiliation(s)
- K Tay Za
- University Malaya Medical Centre, Department of Pathology, Division of Laboratory Medicine, kuala Lumpur, Malaysia.
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25
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Tripon F, Crauciuc GA, Bogliş A, Moldovan V, Sándor-Kéri J, Benedek IJ, Trifa AP, Bănescu C. Co-occurrence of PML-RARA gene fusion, chromosome 8 trisomy, and FLT3 ITD mutation in a young female patient with de novo acute myeloid leukemia and early death: A CARE case report. Medicine (Baltimore) 2020; 99:e19730. [PMID: 32243411 PMCID: PMC7220460 DOI: 10.1097/md.0000000000019730] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
RATIONALE Co-occurrence of cytogenetic and molecular abnormalities is frequently seen in patients with acute myeloid leukemia (AML). The clinical outcome and genetic abnormalities of AML may vary; therefore, genetic investigation must be complex, using several techniques, to have an appropriate characterization of the AML genome and its clinical impact. The available molecular markers can predict prognosis only partially. Acute promyelocytic leukemia subtype M3 (AML M3) is a subtype of AML characterized by the presence of promyelocytic leukemia-retinoic acid receptor alpha (PML-RARA) genes fusion. Targeted treatment with all-trans-retinoic acid (ATRA) and ATRA combined with arsenic trioxide significantly improved the survival of AML M3 patients. Unknown prognostic factors could contribute to the early death of these patients. PATIENT CONCERNS We present the case of a young female (20 years old) patient, who presented at the emergency department 5 months after giving birth to her first child, complaining of asthenia, fatigue, general musculoskeletal pain, and fever (38°C), symptoms having been present for the previous 6 days. The patient denied any chronic diseases in her medical and family history. DIAGNOSIS Laboratory analysis revealed severe pancytopenia. Cytogenetic and molecular analyzes revealed chromosomal abnormalities (trisomy 8), PML-RARA gene fusion, and fms-like tyrosine kinase 3 (FLT3) gene mutation. The immunophenotypic analysis was also suggestive for AML M3 according to the FAB classification. INTERVENTIONS Specific treatment was initiated for AML M3 and for secondary conditions. Molecular and cytogenetic analyzes were performed to have a more detailed characterization of the patient's genome. OUTCOME Seventy-two hours after admission, she developed psychomotor agitation, confusion, coma, and convulsion. Subsequent deterioration and early death were caused by intracerebral hemorrhage with multiple localization and diffuse cerebral edema. LESSONS The presence of FLT3 internal tandem duplication (ITD) mutation may explain the rapid and progressive degradation of this AML M3 case and it may be used as a prognostic marker even when co-occuring with other markers such as PML-RARA gene fusion and trisomy 8. We consider that FLT3 ITD mutation analysis in young patients with AML should be performed as soon as possible. New strategies for patients' education, AML (or cancers in general) prevention, and treatment are needed.
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Affiliation(s)
- Florin Tripon
- Department of Medical Genetics
- Genetics Laboratory, Center for Advanced Medical and Pharmaceutical Research, George Emil Palade University of Medicine, Pharmacy, Science and Technology of TârguMureş
- Genetics Laboratory, Mures County Emergency Clinical Hospital (SCJU Târgu Mureş)
| | - George Andrei Crauciuc
- Department of Medical Genetics
- Genetics Laboratory, Center for Advanced Medical and Pharmaceutical Research, George Emil Palade University of Medicine, Pharmacy, Science and Technology of TârguMureş
| | - Alina Bogliş
- Department of Medical Genetics
- Genetics Laboratory, Center for Advanced Medical and Pharmaceutical Research, George Emil Palade University of Medicine, Pharmacy, Science and Technology of TârguMureş
- Genetics Laboratory, Mures County Emergency Clinical Hospital (SCJU Târgu Mureş)
| | - Valeriu Moldovan
- Genetics Laboratory, Center for Advanced Medical and Pharmaceutical Research, George Emil Palade University of Medicine, Pharmacy, Science and Technology of TârguMureş
| | - Johanna Sándor-Kéri
- Department of Internal Medicine, George Emil Palade University of Medicine, Pharmacy, Science and Technology of TârguMureş, TârguMureş
| | - István Jr Benedek
- Department of Internal Medicine, George Emil Palade University of Medicine, Pharmacy, Science and Technology of TârguMureş, TârguMureş
| | - Adrian Pavel Trifa
- Department of Medical Genetics, University of Medicine and Pharmacy “Iuliu Haţieganu”, Cluj-Napoca, Romania
| | - Claudia Bănescu
- Department of Medical Genetics
- Genetics Laboratory, Center for Advanced Medical and Pharmaceutical Research, George Emil Palade University of Medicine, Pharmacy, Science and Technology of TârguMureş
- Genetics Laboratory, Mures County Emergency Clinical Hospital (SCJU Târgu Mureş)
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26
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Kitakaze T, Yoshikawa M, Kobayashi Y, Kimura N, Goshima N, Ishikawa T, Ogata Y, Yamashita Y, Ashida H, Harada N, Yamaji R. Extracellular transglutaminase 2 induces myotube hypertrophy through G protein-coupled receptor 56. Biochim Biophys Acta Mol Cell Res 2020; 1867:118563. [PMID: 31666191 DOI: 10.1016/j.bbamcr.2019.118563] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 10/16/2019] [Accepted: 10/17/2019] [Indexed: 12/15/2022]
Abstract
Skeletal muscle secretes biologically active proteins that contribute to muscle hypertrophy in response to either exercise or dietary intake. The identification of skeletal muscle-secreted proteins that induces hypertrophy can provide critical information regarding skeletal muscle health. Dietary provitamin A, β-carotene, induces hypertrophy of the soleus muscle in mice. Here, we hypothesized that skeletal muscle produces hypertrophy-inducible secretory proteins via dietary β-carotene. Knockdown of retinoic acid receptor (RAR) γ inhibited the β-carotene-induced increase soleus muscle mass in mice. Using RNA sequencing, bioinformatic analyses, and literature searching, we predicted transglutaminase 2 (TG2) to be an all-trans retinoic acid (ATRA)-induced secretory protein in cultured C2C12 myotubes. Tg2 mRNA expression increased in ATRA- or β-carotene-stimulated myotubes and in the soleus muscle of β-carotene-treated mice. Knockdown of RARγ inhibited β-carotene-increased mRNA expression of Tg2 in the soleus muscle. ATRA increased endogenous TG2 levels in conditioned medium from myotubes. Extracellular TG2 promoted the phosphorylation of Akt, mechanistic target of rapamycin (mTOR), and ribosomal p70 S6 kinase (p70S6K), and inhibitors of mTOR, phosphatidylinositol 3-kinase, and Src (rapamycin, LY294002, and Src I1, respectively) inhibited TG2-increased phosphorylation of mTOR and p70S6K. Furthermore, extracellular TG2 promoted protein synthesis and hypertrophy in myotubes. TG2 mutant lacking transglutaminase activity exerted the same effects as wild-type TG2. Knockdown of G protein-coupled receptor 56 (GPR56) inhibited the effects of TG2 on mTOR signaling, protein synthesis, and hypertrophy. These results indicated that TG2 expression was upregulated through ATRA-mediated RARγ and that extracellular TG2 induced myotube hypertrophy by activating mTOR signaling-mediated protein synthesis through GPR56, independent of transglutaminase activity.
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MESH Headings
- Animals
- Cell Enlargement/drug effects
- Cell Line
- GTP-Binding Proteins/genetics
- GTP-Binding Proteins/metabolism
- Insulin-Like Growth Factor I/genetics
- Insulin-Like Growth Factor I/metabolism
- Mice
- Muscle, Skeletal/drug effects
- Muscle, Skeletal/metabolism
- Myoblasts/cytology
- Myoblasts/metabolism
- Phosphorylation/drug effects
- Protein Glutamine gamma Glutamyltransferase 2
- Proto-Oncogene Proteins c-akt/metabolism
- RNA Interference
- RNA, Small Interfering/metabolism
- Receptors, G-Protein-Coupled/antagonists & inhibitors
- Receptors, G-Protein-Coupled/genetics
- Receptors, G-Protein-Coupled/metabolism
- Receptors, Retinoic Acid/antagonists & inhibitors
- Receptors, Retinoic Acid/genetics
- Receptors, Retinoic Acid/metabolism
- Retinoic Acid Receptor alpha/antagonists & inhibitors
- Retinoic Acid Receptor alpha/genetics
- Retinoic Acid Receptor alpha/metabolism
- Ribosomal Protein S6 Kinases, 70-kDa/metabolism
- Signal Transduction/drug effects
- TOR Serine-Threonine Kinases/metabolism
- Transglutaminases/genetics
- Transglutaminases/metabolism
- Tretinoin/pharmacology
- beta Carotene/administration & dosage
- beta Carotene/pharmacology
- Retinoic Acid Receptor gamma
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Affiliation(s)
- Tomoya Kitakaze
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Osaka, Japan; Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe, Hyogo, Japan
| | - Miki Yoshikawa
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Osaka, Japan
| | - Yasuyuki Kobayashi
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Osaka, Japan
| | - Naohiro Kimura
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Osaka, Japan
| | - Naoki Goshima
- National Institute of Advanced Industrial Science and Technology, Tokyo, Japan
| | - Takahiro Ishikawa
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University, Matsue, Shimane, Japan
| | - Yoshiyuki Ogata
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Osaka, Japan
| | - Yoko Yamashita
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe, Hyogo, Japan
| | - Hitoshi Ashida
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe, Hyogo, Japan
| | - Naoki Harada
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Osaka, Japan
| | - Ryoichi Yamaji
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai, Osaka, Japan.
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27
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Li Y, Ma X, Chen Z, Wu H, Wang P, Wu W, Cheng N, Zeng L, Zhang H, Cai X, Chen SJ, Chen Z, Meng G. B1 oligomerization regulates PML nuclear body biogenesis and leukemogenesis. Nat Commun 2019; 10:3789. [PMID: 31439836 PMCID: PMC6706441 DOI: 10.1038/s41467-019-11746-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 08/02/2019] [Indexed: 02/06/2023] Open
Abstract
ProMyelocyticLeukemia (PML) protein can polymerize into a mega-Dalton nuclear assembly of 0.1-2 μm in diameter. The mechanism of PML nuclear body biogenesis remains elusive. Here, PMLRBCC is successfully purified. The gel filtration and ultracentrifugation analysis suggest a previously unrecognized sequential oligomerization mechanism via PML monomer, dimer, tetramer and N-mer. Consistently, PML B1-box structure (2.0 Å) and SAXS characterization reveal an unexpected networking by W157-, F158- and SD1-interfaces. Structure-based perturbations in these B1 interfaces not only impair oligomerization in vitro but also abolish PML sumoylation and nuclear body biogenesis in HeLaPml-/- cell. More importantly, as demonstrated by in vivo study using transgenic mice, PML-RARα (PR) F158E precludes leukemogenesis. In addition, single cell RNA sequencing analysis shows that B1 oligomerization is an important regulator in PML-RARα-driven transactivation. Altogether, these results not only define a previously unrecognized B1-box oligomerization in PML, but also highlight oligomerization as an important factor in carcinogenesis.
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MESH Headings
- Animals
- Carcinogenesis
- Gene Knockout Techniques
- HeLa Cells
- Humans
- Leukemia, Promyelocytic, Acute/genetics
- Leukemia, Promyelocytic, Acute/pathology
- Mice
- Mice, Transgenic
- Mutation
- Oncogene Proteins, Fusion/genetics
- Oncogene Proteins, Fusion/metabolism
- Oncogene Proteins, Fusion/ultrastructure
- Promyelocytic Leukemia Protein/genetics
- Promyelocytic Leukemia Protein/metabolism
- Promyelocytic Leukemia Protein/ultrastructure
- Protein Domains/genetics
- Protein Multimerization
- Retinoic Acid Receptor alpha/genetics
- Retinoic Acid Receptor alpha/metabolism
- Retinoic Acid Receptor alpha/ultrastructure
- Scattering, Small Angle
- Sequence Analysis, RNA
- Single-Cell Analysis
- Sumoylation
- X-Ray Diffraction
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Grants
- Shanghai Municipal Education Commission
- National Natural Science Foundation of China (National Science Foundation of China)
- This work was supported by research grants 81770142, 81370620, 81570120, 31070645, 81800144, 31800642 from National Natural Science Foundation of China, a research grant 20152504 from “Shanghai Municipal Education Commission—Gaofeng Clinical Medicine Grant Support”, “The Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institute of Higher Learning”, a research grant 11JC1407200 from SMSTC, a research grant 12ZZ109 from SME, “Program for New Century Excellent Talents in University (NCET-10-9571).
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Affiliation(s)
- Yuwen Li
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 197 Ruijin Er Road, Shanghai, 200025, China
| | - Xiaodan Ma
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 197 Ruijin Er Road, Shanghai, 200025, China
| | - Zhiming Chen
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 197 Ruijin Er Road, Shanghai, 200025, China
| | - Haiyan Wu
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 197 Ruijin Er Road, Shanghai, 200025, China
| | - Pengran Wang
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 197 Ruijin Er Road, Shanghai, 200025, China
| | - Wenyu Wu
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 197 Ruijin Er Road, Shanghai, 200025, China
| | - Nuo Cheng
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 197 Ruijin Er Road, Shanghai, 200025, China
| | - Longhui Zeng
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 197 Ruijin Er Road, Shanghai, 200025, China
| | - Hao Zhang
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 197 Ruijin Er Road, Shanghai, 200025, China
| | - Xun Cai
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 197 Ruijin Er Road, Shanghai, 200025, China
| | - Sai-Juan Chen
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 197 Ruijin Er Road, Shanghai, 200025, China
| | - Zhu Chen
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 197 Ruijin Er Road, Shanghai, 200025, China
| | - Guoyu Meng
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 197 Ruijin Er Road, Shanghai, 200025, China.
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28
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Jakubiuk-Tomaszuk A, Murcia Pienkowski V, Zietkiewicz S, Rydzanicz M, Kosińska J, Stawiński P, Szumiński M, Płoski R. Syndromic chorioretinal coloboma associated with heterozygous de novo RARA mutation affecting an amino acid critical for retinoic acid interaction. Clin Genet 2019; 96:371-375. [PMID: 31343737 DOI: 10.1111/cge.13611] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 07/11/2019] [Accepted: 07/21/2019] [Indexed: 11/26/2022]
Abstract
Retinoid acid receptors (RAR) are transcription factors that bind retinoic acid (RA), a metabolite of vitamin A. RARs are composed of three subunits encoded by RARA, RARB and RARG. In humans, RARB defects cause syndromic microphthalmia. So far, no germline pathogenic variants have been identified in RARA or RARG. We describe a girl with a de novo mutation NM_000964 c.826C > T (p.Arg276Trp) in RARA with symptoms overlapping those described in RARB patients (coloboma, muscular hypotonia, dilated pulmonary artery, ectopic kidney). RARA Arg276 residue is functionally important, as it was previously shown that its substitution for Ala or Gln causes a 50- or 21-fold impairment of RA binding, respectively. Moreover, in leukemic cells, the p.Arg611Trp mutation in a chimeric PML/RARA gene (corresponding to the RARA p.Arg276Trp detected in our patient) conferred resistance to therapy by decreasing binding of all-trans RA. The functional effect of RARA p.Arg276Trp was further confirmed by in silico modeling which showed that binding of RA by the Trp276 variant was similarly defective as in the deleterious model Ala276 mutant. We propose that RARA p.Arg276Trp causes the disease by affecting RA interaction with the RARA receptor.
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Affiliation(s)
- Anna Jakubiuk-Tomaszuk
- Department of Pediatric Neurology and Rehabilitation, Medical University of Bialystok, Bialystok, Poland
| | - Victor Murcia Pienkowski
- Department of Medical Genetics, Medical University of Warsaw, Warsaw, Poland
- Postgraduate School of Molecular Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Szymon Zietkiewicz
- Department of Molecular and Cellular Biology, Intercollegiate Faculty of Biotechnology UG-MUG, University of Gdansk, Gdansk, Poland
| | | | - Joanna Kosińska
- Department of Medical Genetics, Medical University of Warsaw, Warsaw, Poland
| | - Piotr Stawiński
- Department of Medical Genetics, Medical University of Warsaw, Warsaw, Poland
| | - Michał Szumiński
- Department of Pediatric Ophthalmology, Medical University of Bialystok, Bialystok, Poland
| | - Rafał Płoski
- Department of Medical Genetics, Medical University of Warsaw, Warsaw, Poland
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29
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Lee SA, Jiang H, Feranil JB, Brun PJ, Blaner WS. Adipocyte-specific expression of a retinoic acid receptor α dominant negative form causes glucose intolerance and hepatic steatosis in mice. Biochem Biophys Res Commun 2019; 514:1231-1237. [PMID: 31109648 DOI: 10.1016/j.bbrc.2019.05.075] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 05/09/2019] [Indexed: 11/30/2022]
Abstract
All-trans-retinoic acid (ATRA) has been well described as a positive regulator for early stage of adipocyte differentiation and lipid metabolism and also linked to an in vivo fat-lowering effect in mice. However, not all studies support this association. Our objective was to characterize the action of ATRA in mature adipocytes of mice by ablating RAR signaling through overexpression of a well-characterized dominant negative RARα mutant (RARdn) form specifically in adipocytes. Altered RAR signaling in adipocytes resulted in a significant decrease in ATRA levels in visceral and brown adipose tissues as well as liver tissue. This was linked to significant impairments in glucose clearance and elevated hepatic lipid accumulation for chow diet fed mice, indicating the development of metabolic disease, including hepatic steatosis. In addition, we found that adipose RARdn expression in mice fed a chow diet decreased thermogenesis. We conclude that altered RAR signaling and ATRA levels in adipocytes impacts glucose and lipid metabolism in mice.
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Affiliation(s)
- Seung-Ah Lee
- Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, NY, United States; Present Address: Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, Republic of Korea.
| | - Hongfeng Jiang
- Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, NY, United States.
| | - Jun B Feranil
- Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, NY, United States.
| | - Pierre-Jacques Brun
- Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, NY, United States.
| | - William S Blaner
- Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, NY, United States.
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30
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El-Baz FK, Hussein RA, Saleh DO, Abdel Jaleel GAR. Zeaxanthin Isolated from Dunaliella salina Microalgae Ameliorates Age Associated Cardiac Dysfunction in Rats through Stimulation of Retinoid Receptors. Mar Drugs 2019; 17:md17050290. [PMID: 31091726 PMCID: PMC6562725 DOI: 10.3390/md17050290] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 04/30/2019] [Accepted: 05/04/2019] [Indexed: 12/11/2022] Open
Abstract
Retinoids are essential during early cardiovascular morphogenesis. However, recent studies showed their important role in cardiac remodeling in rats with hypertension and following myocardial infarction. The present study aimed to investigate the effect of zeaxanthin heneicosylate (ZH); a carotenoid ester isolated from Dunaliella salina microalgae, on cardiac dysfunction ensuing d-galactose injection in rats. Rats injected with d-GAL (200 mg/kg; I.P) for 8 weeks were orally treated with ZH (250 μg/kg) for 28 consecutive days. Results showed that d-GAL injection caused dramatic electrocardiographic changes as well as marked elevation in serum levels of homocysteine, creatinine kinase isoenzyme and lactate dehydrogenase. A reduction in the cardiac contents of glucose transporter-4 and superoxide dismutase along with the elevation of inducible nitric oxide synthetase and interleukin-6 was also noticed. Oral administration of ZH significantly improved the above mentioned cardiac aging manifestations; this was further emphasized through histopathological examinations. The effect of ZH is mediated through the interaction with retinoid receptor alpha (RAR-α) as evidenced through a significant elevation of RAR-α expression in cardiac tissue following the lead of an in silico molecular docking study. In conclusion, zeaxanthin heneicosylate isolated from D. salina ameliorated age-associated cardiac dysfunction in rats through the activation of retinoid receptors.
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Affiliation(s)
- Farouk Kamel El-Baz
- Plant Biochemistry Department, National Research Centre (NRC), 33 El Buhouth St. (Former El Tahrir St.), Dokki, Giza P.O.12622, Egypt.
| | - Rehab Ali Hussein
- Pharmacognosy Department, National Research Centre (NRC), 33 El Buhouth St. (Former El Tahrir St.), Dokki, Giza P.O.12622, Egypt.
| | - Dalia Osama Saleh
- Pharmacology Department, National Research Centre (NRC), 33 El Buhouth St. (Former El Tahrir St.), Dokki, Giza P.O.12622, Egypt.
| | - Gehad Abdel Raheem Abdel Jaleel
- Pharmacology Department, National Research Centre (NRC), 33 El Buhouth St. (Former El Tahrir St.), Dokki, Giza P.O.12622, Egypt.
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31
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Wen L, Xu Y, Yao L, Wang N, Wang Q, Liu T, Pan J, Cen J, Zhou H, Miao M, Shao YW, Wang X, Wang X, Ruan C, Wu D, Chen S. Clinical and molecular features of acute promyelocytic leukemia with variant retinoid acid receptor fusions. Haematologica 2019; 104:e195-e199. [PMID: 30237272 PMCID: PMC6518904 DOI: 10.3324/haematol.2018.205369] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
MESH Headings
- Adolescent
- Adult
- Aged
- Aged, 80 and over
- Child
- Child, Preschool
- Chromosomes, Human, Pair 15/genetics
- Chromosomes, Human, Pair 17/genetics
- Female
- Follow-Up Studies
- Humans
- Leukemia, Promyelocytic, Acute/genetics
- Leukemia, Promyelocytic, Acute/pathology
- Male
- Middle Aged
- Oncogene Proteins, Fusion/genetics
- Prognosis
- Receptors, Retinoic Acid/genetics
- Retinoic Acid Receptor alpha/genetics
- Retrospective Studies
- Survival Rate
- Translocation, Genetic
- Young Adult
- Retinoic Acid Receptor gamma
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Affiliation(s)
- Lijun Wen
- Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, the First Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Yang Xu
- Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, the First Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Li Yao
- Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, the First Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Nana Wang
- Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, the First Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Qinrong Wang
- Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, the First Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Tianhui Liu
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, P.R. China
| | - Jinlan Pan
- Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, the First Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Jiannong Cen
- Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, the First Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Huifeng Zhou
- Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, the First Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Miao Miao
- Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, the First Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Yang W Shao
- Translational Medicine Research Institute, Geneseeq Technology Inc., Toronto, ON, Canada
- School of Public Health, Nanjing Medical University, Nanjing, P.R. China
- Nanjing Geneseeq Technology Inc., Nanjing, P.R. China
| | - Xiaonan Wang
- Nanjing Geneseeq Technology Inc., Nanjing, P.R. China
| | - Xiaoxia Wang
- Nanjing Geneseeq Technology Inc., Nanjing, P.R. China
| | - Changgeng Ruan
- Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, the First Affiliated Hospital of Soochow University, Suzhou, P.R. China
| | - Depei Wu
- Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, the First Affiliated Hospital of Soochow University, Suzhou, P.R. China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, P.R. China
| | - Suning Chen
- Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, the First Affiliated Hospital of Soochow University, Suzhou, P.R. China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, P.R. China
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32
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Ochiai A, Kuroda K, Ozaki R, Ikemoto Y, Murakami K, Muter J, Matsumoto A, Itakura A, Brosens JJ, Takeda S. Resveratrol inhibits decidualization by accelerating downregulation of the CRABP2-RAR pathway in differentiating human endometrial stromal cells. Cell Death Dis 2019; 10:276. [PMID: 30894514 PMCID: PMC6427032 DOI: 10.1038/s41419-019-1511-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 02/19/2019] [Accepted: 03/07/2019] [Indexed: 12/20/2022]
Abstract
Pregnancy critically depends on the transformation of the human endometrium into a decidual matrix that controls embryo implantation and placenta formation, a process driven foremost by differentiation and polarization of endometrial stromal cells into mature and senescent decidual cells. Perturbations in the decidual process underpin a spectrum of prevalent reproductive disorders, including implantation failure and early pregnancy loss, emphasizing the need for new therapeutic interventions. Resveratrol is a naturally occurring polyphenol, widely used for its antioxidant and anti-inflammatory properties. Using primary human endometrial stromal cell (HESC) cultures, we demonstrate that resveratrol has anti-deciduogenic properties, repressing not only the induction of the decidual marker genes PRL and IGFBP1 but also abrogating decidual senescence. Knockdown of Sirtuin 1, a histone deacetylase activated by resveratrol, restored the expression of IGFBP1 but not the induction of PRL or senescence markers in decidualizing HESCs, suggesting involvement of other pathways. We demonstrate that resveratrol interferes with the reprogramming of the retinoic acid signaling pathway in decidualizing HESCs by accelerating down-regulation of cellular retinoic acid-binding protein 2 (CRABP2) and retinoic acid receptor (RAR). Notably, knockdown of CRABP2 or RAR in HESCs was sufficient to recapitulate the anti-deciduogenic effects of resveratrol. Thus, while resveratrol has been advanced as a potential fertility drug, our results indicate it may have detrimental effects on embryo implantation by interfering with decidual remodeling of the endometrium.
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Affiliation(s)
- Asako Ochiai
- Department of Obstetrics and Gynaecology, Faculty of Medicine, Juntendo University, Tokyo, 113-8421, Japan
| | - Keiji Kuroda
- Department of Obstetrics and Gynaecology, Faculty of Medicine, Juntendo University, Tokyo, 113-8421, Japan.
- Center for Reproductive Medicine and Implantation Research, Sugiyama Clinic Shinjuku, Tokyo, 116-0023, Japan.
| | - Rie Ozaki
- Department of Obstetrics and Gynaecology, Faculty of Medicine, Juntendo University, Tokyo, 113-8421, Japan
| | - Yuko Ikemoto
- Department of Obstetrics and Gynaecology, Faculty of Medicine, Juntendo University, Tokyo, 113-8421, Japan
| | - Keisuke Murakami
- Department of Obstetrics and Gynaecology, Faculty of Medicine, Juntendo University, Tokyo, 113-8421, Japan
| | - Joanne Muter
- The Division of Biomedical Sciences, Clinical Science Research Laboratories, Warwick Medical School, Coventry, CV2 2DX, UK
| | - Akemi Matsumoto
- Department of Obstetrics and Gynaecology, Faculty of Medicine, Juntendo University, Tokyo, 113-8421, Japan
| | - Atsuo Itakura
- Department of Obstetrics and Gynaecology, Faculty of Medicine, Juntendo University, Tokyo, 113-8421, Japan
| | - Jan J Brosens
- The Division of Biomedical Sciences, Clinical Science Research Laboratories, Warwick Medical School, Coventry, CV2 2DX, UK
- Tommy's National Centre for Miscarriage Research, University Hospitals Coventry & Warwickshire, Coventry, CV2 2DX, UK
| | - Satoru Takeda
- Department of Obstetrics and Gynaecology, Faculty of Medicine, Juntendo University, Tokyo, 113-8421, Japan
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33
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Abstract
Bromodomain-containing 4 (BRD4) has been considered as an important requirement for disease maintenance and an attractive therapeutic target for cancer therapy. This protein can be targeted by JQ1, a selective small-molecule inhibitor. However, few studies have investigated whether BRD4 influenced acute promyelocytic leukemia (APL), and whether BRD4 had interaction with promyelocytic leukemia-retinoic acid receptor α (PML/RARα) fusion protein to some extent. Results from cell viability assay, cell cycle analysis, and Annexin-V/PI analysis indicated that JQ1 inhibited the growth of NB4 cells, an APL-derived cell line, and induced NB4 cell cycle arrest at G1 and apoptosis. Then, we used co-immunoprecipitation (co-IP) assay and immunoblot to demonstrate the endogenous interaction of BRD4 and PML/RARα in NB4 cells. Moreover, downregulation of PML/RARα at the mRNA and protein levels was observed upon JQ1 treatment. Furthermore, results from the RT-qPCR, ChIP-qPCR, and re-ChIP-qPCR assays showed that BRD4 and PML/RARα co-existed on the same regulatory regions of their target genes. Hence, we showed a new discovery of the interaction of BRD4 and PML/RARα, as well as the decline of PML/RARα expression, under JQ1 treatment.
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Affiliation(s)
- Qun Luo
- State Key Laboratory of Medical Genomics, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Wanglong Deng
- State Key Laboratory of Medical Genomics, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Haiwei Wang
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences and Graduate School, Chinese Academy of Sciences, Shanghai, 200025, China
| | - Huiyong Fan
- State Key Laboratory of Medical Genomics, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Ji Zhang
- State Key Laboratory of Medical Genomics, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences and Graduate School, Chinese Academy of Sciences, Shanghai, 200025, China.
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34
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Coccaro N, Zagaria A, Orsini P, Anelli L, Tota G, Casieri P, Impera L, Minervini A, Minervini CF, Cumbo C, Parciante E, Mestice A, Delia M, Brunetti C, Specchia G, Albano F. RARA and RARG gene downregulation associated with EZH2 mutation in acute promyelocytic-like morphology leukemia. Hum Pathol 2018; 80:82-86. [PMID: 29530751 DOI: 10.1016/j.humpath.2018.02.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 02/15/2018] [Accepted: 02/21/2018] [Indexed: 12/17/2022]
Abstract
Most acute promyelocytic leukemia (APL) patients express PML-RARA fusion; in rare cases, RARA is rearranged with partner genes other than PML. To date, only 2 patients presenting features similar to APL showing the RARG gene rearrangement have been described. We report an acute myeloid leukemia patient with morphology resembling APL without involvement of the RARA gene. Molecular and fluorescent in situ hybridization analyses excluded PML-RARA fusion and variant rearrangements involving RARA and RARG loci. Targeted next-generation sequencing showed EZH2- D185H mutation. As this mutation involved the region of interaction with DNA methyltransferases, we speculate an epigenetic alteration of genes involved in the APL-like phenotype. Expression analysis by droplet digital polymerase chain reaction revealed downregulation of the RARA and RARG genes. We hypothesize a novel mechanism of EZH2 function alteration, which may be responsible for an acute myeloid leukemia with APL-like phenotype featuring dysregulation of the RARA and RARG genes.
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Affiliation(s)
- Nicoletta Coccaro
- Hematology Section, Department of Emergency and Organ Transplantation, University of Bari, 70124 Bari, Italy
| | - Antonella Zagaria
- Hematology Section, Department of Emergency and Organ Transplantation, University of Bari, 70124 Bari, Italy
| | - Paola Orsini
- Hematology Section, Department of Emergency and Organ Transplantation, University of Bari, 70124 Bari, Italy
| | - Luisa Anelli
- Hematology Section, Department of Emergency and Organ Transplantation, University of Bari, 70124 Bari, Italy
| | - Giuseppina Tota
- Hematology Section, Department of Emergency and Organ Transplantation, University of Bari, 70124 Bari, Italy
| | - Paola Casieri
- Hematology Section, Department of Emergency and Organ Transplantation, University of Bari, 70124 Bari, Italy
| | - Luciana Impera
- Hematology Section, Department of Emergency and Organ Transplantation, University of Bari, 70124 Bari, Italy
| | - Angela Minervini
- Hematology Section, Department of Emergency and Organ Transplantation, University of Bari, 70124 Bari, Italy
| | - Crescenzio F Minervini
- Hematology Section, Department of Emergency and Organ Transplantation, University of Bari, 70124 Bari, Italy
| | - Cosimo Cumbo
- Hematology Section, Department of Emergency and Organ Transplantation, University of Bari, 70124 Bari, Italy
| | - Elisa Parciante
- Hematology Section, Department of Emergency and Organ Transplantation, University of Bari, 70124 Bari, Italy
| | - Anna Mestice
- Hematology Section, Department of Emergency and Organ Transplantation, University of Bari, 70124 Bari, Italy
| | - Mario Delia
- Hematology Section, Department of Emergency and Organ Transplantation, University of Bari, 70124 Bari, Italy
| | - Claudia Brunetti
- Hematology Section, Department of Emergency and Organ Transplantation, University of Bari, 70124 Bari, Italy
| | - Giorgina Specchia
- Hematology Section, Department of Emergency and Organ Transplantation, University of Bari, 70124 Bari, Italy
| | - Francesco Albano
- Hematology Section, Department of Emergency and Organ Transplantation, University of Bari, 70124 Bari, Italy.
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35
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Peer NR, Law SM, Murdoch B, Goulding EH, Eddy EM, Kim K. Germ Cell-Specific Retinoic Acid Receptor α Functions in Germ Cell Organization, Meiotic Integrity, and Spermatogonia. Endocrinology 2018; 159:3403-3420. [PMID: 30099545 PMCID: PMC6112597 DOI: 10.1210/en.2018-00533] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Accepted: 08/01/2018] [Indexed: 12/20/2022]
Abstract
Retinoic acid receptor α (RARA), a retinoic acid-dependent transcription factor, is expressed in both somatic and germ cells of the testis. Rara-null male mice with global Rara mutations displayed severely degenerated testis and infertility phenotypes. To elucidate the specific responsibility of germ cell RARA in spermatogenesis, Rara was deleted in germ cells, generating germ cell-specific Rara conditional knockout (cKO) mice. These Rara cKO animals exhibited phenotypes of quantitatively reduced epididymal sperm counts and disorganized germ cell layers in the seminiferous tubules, which worsened with aging. Abnormal tubules lacked lumen, contained vacuoles, and showed massive germ cell sloughing, all characteristics similar to those observed in Rara-null tubules. Spermatocyte chromosomal spreads revealed a novel role for germ cell RARA in modulating the integrity of synaptonemal complexes and meiotic progression. Furthermore, the initiation of spermatogenesis from spermatogonial stem cells was decreased in Rara cKO testes following busulfan treatment, supporting a role of germ cell RARA in spermatogonial proliferation. Collectively, the evidence in this study indicates that RARA produced in male germ cells has a broad spectrum of functions throughout spermatogenesis, which includes the maintenance of seminiferous epithelium organization, the integrity of the meiotic genome, and spermatogonial proliferation and differentiation. The results further suggest that germ cell RARA has dual functions: intrinsically in germ cells, balancing proliferation and differentiation of spermatogonia, and controlling genome integrity during meiosis; and extrinsically in the crosstalks with Sertoli cells, controlling the cell junctional physiology for coordinating proper spatial and temporal development of germ cells during spermatogenesis.
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Affiliation(s)
- Natalie R Peer
- School of Molecular Biosciences, Center for Reproductive Biology, Washington State University, Pullman, Washington
| | - Sze Ming Law
- School of Molecular Biosciences, Center for Reproductive Biology, Washington State University, Pullman, Washington
| | - Brenda Murdoch
- School of Molecular Biosciences, Center for Reproductive Biology, Washington State University, Pullman, Washington
- Department of Animal and Veterinary Science, University of Idaho, Moscow, Idaho
| | - Eugenia H Goulding
- Laboratory of Reproductive and Developmental Biology, Gamete Biology Section, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina
| | - Edward M Eddy
- Laboratory of Reproductive and Developmental Biology, Gamete Biology Section, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina
| | - Kwanhee Kim
- School of Molecular Biosciences, Center for Reproductive Biology, Washington State University, Pullman, Washington
- Correspondence: Kwanhee Kim, PhD, School of Molecular Biosciences, Washington State University, 1715 NE South Fairway Road, Pullman, Washington 99164. E-mail:
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Laursen KB, Gudas LJ. Combinatorial knockout of RARα, RARβ, and RARγ completely abrogates transcriptional responses to retinoic acid in murine embryonic stem cells. J Biol Chem 2018; 293:11891-11900. [PMID: 29848550 PMCID: PMC6066298 DOI: 10.1074/jbc.ra118.001951] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 05/17/2018] [Indexed: 11/06/2022] Open
Abstract
All-trans-retinoic acid (RA), a potent inducer of cellular differentiation, functions as a ligand for retinoic acid receptors (RARα, β, and γ). RARs are activated by ligand binding, which induces transcription of direct genomic targets. However, whether embryonic stem cells respond to RA through routes that do not involve RARs is unknown. Here, we used CRISPR technology to introduce biallelic frameshift mutations in RARα, RARβ, and RARγ, thereby abrogating all RAR functions in murine embryonic stem cells. We then evaluated RA-responsiveness of the RAR-null cells using RNA-Seq transcriptome analysis. We found that the RAR-null cells display no changes in transcripts in response to RA, demonstrating that the RARs are essential for the regulation of all transcripts in murine embryonic stem cells in response to RA. Our key finding, that in embryonic stem cells the transcriptional effects of RA all depend on RARs, addresses a long-standing topic of discussion in the field of retinoic acid signaling.
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Affiliation(s)
| | - Lorraine J Gudas
- From the Departments of Pharmacology and
- Medicine, Weill Cornell Medical College Cornell University, New York, New York 10065
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Jauregui EJ, Mitchell D, Topping T, Hogarth CA, Griswold MD. Retinoic acid receptor signaling is necessary in steroidogenic cells for normal spermatogenesis and epididymal function. Development 2018; 145:dev160465. [PMID: 29899137 PMCID: PMC6053667 DOI: 10.1242/dev.160465] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 05/31/2018] [Indexed: 12/24/2022]
Abstract
Spermatogenesis in mammals is a very complex, highly organized process, regulated in part by testosterone and retinoic acid (RA). Much is known about how RA and testosterone signaling pathways independently regulate this process, but there is almost no information regarding whether these two signaling pathways directly interact and whether RA is crucial for steroidogenic cell function. This study uses a transgenic mouse line that expresses a dominant-negative form of RA receptor α (RAR-DN) and the steroidogenic cell-specific Cre mouse line, Cyp17iCre, to generate male mice with steroidogenic cells unable to perform RA signaling. Testes of mutant mice displayed increased apoptosis of pachytene spermatocytes, an increased number of macrophages in the interstitium and a loss of advanced germ cells. Additionally, blocking RA signaling in Leydig cells resulted in increased permeability of the blood-testis barrier, decreased levels of the steroidogenic enzyme cytochrome P450 17a1 and decreased testosterone levels. Surprisingly, the epididymides of the mutant mice also displayed an abnormal phenotype. This study demonstrates that RA signaling is required in steroidogenic cells for their normal function and, thus, for male fertility.
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Affiliation(s)
- Estela J Jauregui
- School of Molecular Biosciences and the Center for Reproductive Biology, Washington State University, Pullman, WA 99164, Washington, USA
| | - Debra Mitchell
- School of Molecular Biosciences and the Center for Reproductive Biology, Washington State University, Pullman, WA 99164, Washington, USA
| | - Traci Topping
- School of Molecular Biosciences and the Center for Reproductive Biology, Washington State University, Pullman, WA 99164, Washington, USA
| | - Cathryn A Hogarth
- School of Molecular Biosciences and the Center for Reproductive Biology, Washington State University, Pullman, WA 99164, Washington, USA
| | - Michael D Griswold
- School of Molecular Biosciences and the Center for Reproductive Biology, Washington State University, Pullman, WA 99164, Washington, USA
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38
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Schwertz H, Rowley JW, Zimmerman GA, Weyrich AS, Rondina MT. Retinoic acid receptor-α regulates synthetic events in human platelets. J Thromb Haemost 2017; 15:2408-2418. [PMID: 28981191 DOI: 10.1111/jth.13861] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Indexed: 12/01/2022]
Abstract
Essentials Platelets express retinoic acid receptor (RAR)α protein, specifically binding target mRNAs. mRNAs under RARα control include MAP1LC3B2, SLAIN2, and ANGPT1. All-trans retinoic acid (atRA) releases RARα from its target mRNA. RARα expressed in human platelets exerts translational control via direct mRNA binding. SUMMARY Background Translational control mechanisms in platelets are incompletely defined. Here, we determined whether the nuclear transcription factor RARα controls protein translational events in human platelets. Methods Isolated human platelets were treated with the pan-RAR agonist all-trans-retinoic acid (atRA). Global and targeted translational events were examined. Results Stimulation of platelets with atRA significantly increased global protein expression. RARα protein bound to a subset of platelet mRNAs, as measured by next-generation RNA-sequencing. In-depth analyses of 5' and 3'-untranslated regions of the RARα-bound mRNAs revealed consensus RARα binding sites in microtubule-associated protein 1 light chain 3 beta 2 (MAP1LC3B2), SLAIN motif-containing protein 2 (SLAIN2) and angiopoietin-1 (ANGPT1) transcripts. When platelets were treated with atRA, binding interactions between RARα protein and mRNA for MAP1LC3B2, SLAIN2 and ANGPT1 were significantly decreased. Consistent with the release of bound RARα protein from MAP1LCB2mRNA, we observed an increase in the synthesis of MAP1LC3B2 protein. Conclusions These findings provide the first evidence that RARα, a nuclear transcriptional factor, regulates synthetic events in anucleate human platelets. They also reveal an additional non-genomic role for RARα in platelets that may have implications for the vitamin A-dependent signaling in humans.
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Affiliation(s)
- H Schwertz
- Molecular Medicine Program, University of Utah, Salt Lake City, UT, USA
- Departments of Surgery, University of Utah, Salt Lake City, UT, USA
| | - J W Rowley
- Molecular Medicine Program, University of Utah, Salt Lake City, UT, USA
- Internal Medicine, University of Utah, Salt Lake City, UT, USA
| | - G A Zimmerman
- Molecular Medicine Program, University of Utah, Salt Lake City, UT, USA
- Internal Medicine, University of Utah, Salt Lake City, UT, USA
| | - A S Weyrich
- Molecular Medicine Program, University of Utah, Salt Lake City, UT, USA
- Internal Medicine, University of Utah, Salt Lake City, UT, USA
| | - M T Rondina
- Molecular Medicine Program, University of Utah, Salt Lake City, UT, USA
- Internal Medicine, University of Utah, Salt Lake City, UT, USA
- The Geriatric Research Education and Clinical Center (GRECC), University of Utah, Salt Lake City, UT, USA
- Department of Internal Medicine at the George E. Wahlen Salt Lake City VAMC, Salt Lake City, Utah, USA
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Fettig LM, McGinn O, Finlay-Schultz J, LaBarbera DV, Nordeen SK, Sartorius CA. Cross talk between progesterone receptors and retinoic acid receptors in regulation of cytokeratin 5-positive breast cancer cells. Oncogene 2017; 36:6074-6084. [PMID: 28692043 PMCID: PMC5668194 DOI: 10.1038/onc.2017.204] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 05/03/2017] [Accepted: 05/23/2017] [Indexed: 12/18/2022]
Abstract
Half of estrogen receptor-positive breast cancers contain a subpopulation of cytokeratin 5 (CK5)-expressing cells that are therapy resistant and exhibit increased cancer stem cell (CSC) properties. We and others have demonstrated that progesterone (P4) increases CK5+ breast cancer cells. We previously discovered that retinoids block P4 induction of CK5+ cells. Here we investigated the mechanisms by which progesterone receptors (PR) and retinoic acid receptors (RAR) regulate CK5 expression and breast CSC activity. After P4 treatment, sorted CK5+ compared to CK5- cells were more tumorigenic in vivo. In vitro, P4-treated breast cancer cells formed larger mammospheres and silencing of CK5 using small hairpin RNA abolished this P4-dependent increase in mammosphere size. Retinoic acid (RA) treatment blocked the P4 increase in CK5+ cells and prevented the P4 increase in mammosphere size. Dual small interfering RNA (siRNA) silencing of RARα and RARγ reversed RA blockade of P4-induced CK5. Using promoter deletion analysis, we identified a region 1.1 kb upstream of the CK5 transcriptional start site that is necessary for P4 activation and contains a putative progesterone response element (PRE). We confirmed by chromatin immunoprecipitation that P4 recruits PR to the CK5 promoter near the -1.1 kb essential PRE, and also to a proximal region near -130 bp that contains PRE half-sites and a RA response element (RARE). RA induced loss of PR binding only at the proximal site. Interestingly, RARα was recruited to the -1.1 kb PRE and the -130 bp PRE/RARE regions with P4, but not RA alone or RA plus P4. Treatment of breast cancer xenografts in vivo with the retinoid fenretinide reduced the accumulation of CK5+ cells during estrogen depletion. This reduction, together with the inhibition of CK5+ cell expansion through RAR/PR cross talk, may explain the efficacy of retinoids in prevention of some breast cancer recurrences.
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Affiliation(s)
- LM Fettig
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - O McGinn
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - J Finlay-Schultz
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - DV LaBarbera
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - SK Nordeen
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - CA Sartorius
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
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40
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McKeown MR, Corces MR, Eaton ML, Fiore C, Lee E, Lopez JT, Chen MW, Smith D, Chan SM, Koenig JL, Austgen K, Guenther MG, Orlando DA, Lovén J, Fritz CC, Majeti R. Superenhancer Analysis Defines Novel Epigenomic Subtypes of Non-APL AML, Including an RARα Dependency Targetable by SY-1425, a Potent and Selective RARα Agonist. Cancer Discov 2017; 7:1136-1153. [PMID: 28729405 PMCID: PMC5962349 DOI: 10.1158/2159-8290.cd-17-0399] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 06/22/2017] [Accepted: 07/18/2017] [Indexed: 01/11/2023]
Abstract
We characterized the enhancer landscape of 66 patients with acute myeloid leukemia (AML), identifying 6 novel subgroups and their associated regulatory loci. These subgroups are defined by their superenhancer (SE) maps, orthogonal to somatic mutations, and are associated with distinct leukemic cell states. Examination of transcriptional drivers for these epigenomic subtypes uncovers a subset of patients with a particularly strong SE at the retinoic acid receptor alpha (RARA) gene locus. The presence of a RARA SE and concomitant high levels of RARA mRNA predisposes cell lines and ex vivo models to exquisite sensitivity to a selective agonist of RARα, SY-1425 (tamibarotene). Furthermore, only AML patient-derived xenograft (PDX) models with high RARA mRNA were found to respond to SY-1425. Mechanistically, we show that the response to SY-1425 in RARA-high AML cells is similar to that of acute promyelocytic leukemia treated with retinoids, characterized by the induction of known retinoic acid response genes, increased differentiation, and loss of proliferation.Significance: We use the SE landscape of primary human AML to elucidate transcriptional circuitry and identify novel cancer vulnerabilities. A subset of patients were found to have an SE at RARA, which is predictive for response to SY-1425, a potent and selective RARα agonist, in preclinical models, forming the rationale for its clinical investigation in biomarker-selected patients. Cancer Discov; 7(10); 1136-53. ©2017 AACR.See related commentary by Wang and Aifantis, p. 1065.This article is highlighted in the In This Issue feature, p. 1047.
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Affiliation(s)
| | - M Ryan Corces
- Program in Cancer Biology, Cancer Institute, Institute for Stem Cell Biology and Regenerative Medicine, and Ludwig Center Stanford University School of Medicine, Stanford, California
| | | | - Chris Fiore
- Syros Pharmaceuticals, Cambridge, Massachusetts
| | - Emily Lee
- Syros Pharmaceuticals, Cambridge, Massachusetts
| | | | | | | | - Steven M Chan
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Julie L Koenig
- Program in Cancer Biology, Cancer Institute, Institute for Stem Cell Biology and Regenerative Medicine, and Ludwig Center Stanford University School of Medicine, Stanford, California
| | | | | | | | - Jakob Lovén
- Syros Pharmaceuticals, Cambridge, Massachusetts
| | | | - Ravindra Majeti
- Program in Cancer Biology, Cancer Institute, Institute for Stem Cell Biology and Regenerative Medicine, and Ludwig Center Stanford University School of Medicine, Stanford, California.
- Department of Medicine, Division of Hematology, Stanford University School of Medicine, Stanford, California
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41
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Berenguer M, Tingaud-Sequeira A, Colovati M, Melaragno MI, Bragagnolo S, Perez ABA, Arveiler B, Lacombe D, Rooryck C. A novel de novo mutation in MYT1, the unique OAVS gene identified so far. Eur J Hum Genet 2017; 25:1083-1086. [PMID: 28612832 PMCID: PMC5558169 DOI: 10.1038/ejhg.2017.101] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 04/26/2017] [Accepted: 05/02/2017] [Indexed: 12/25/2022] Open
Abstract
Oculo-auriculo-vertebral spectrum (OAVS) is a developmental disorder characterized by hemifacial microsomia associated with ear, eyes and vertebrae malformations showing highly variable expressivity. Recently, MYT1, encoding the myelin transcription factor 1, was reported as the first gene involved in OAVS, within the retinoic acid (RA) pathway. Fifty-seven OAVS patients originating from Brazil were screened for MYT1 variants. A novel de novo missense variant affecting function, c.323C>T (p.(Ser108Leu)), was identified in MYT1, in a patient presenting with a severe form of OAVS. Functional studies showed that MYT1 overexpression downregulated all RA receptors genes (RARA, RARB, RARG), involved in RA-mediated transcription, whereas no effect was observed on CYP26A1 expression, the major enzyme involved in RA degradation, Moreover, MYT1 variants impacted significantly the expression of these genes, further supporting their pathogenicity. In conclusion, a third variant affecting function in MYT1 was identified as a cause of OAVS. Furthermore, we confirmed MYT1 connection to RA signaling pathway.
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Affiliation(s)
- Marie Berenguer
- Laboratoire Maladies Rares: Génétique et Métabolisme (MRGM), U 1211 INSERM, University Bordeaux, Bordeaux, France
| | - Angele Tingaud-Sequeira
- Laboratoire Maladies Rares: Génétique et Métabolisme (MRGM), U 1211 INSERM, University Bordeaux, Bordeaux, France
| | - Mileny Colovati
- Division of Genetics, Department of Morphology and Genetics, Universidade Federal de Sao Paulo, Sao Paulo, Brazil
| | - Maria I Melaragno
- Division of Genetics, Department of Morphology and Genetics, Universidade Federal de Sao Paulo, Sao Paulo, Brazil
| | - Silvia Bragagnolo
- Division of Genetics, Department of Morphology and Genetics, Universidade Federal de Sao Paulo, Sao Paulo, Brazil
| | - Ana B A Perez
- Division of Genetics, Department of Morphology and Genetics, Universidade Federal de Sao Paulo, Sao Paulo, Brazil
| | - Benoit Arveiler
- Laboratoire Maladies Rares: Génétique et Métabolisme (MRGM), U 1211 INSERM, University Bordeaux, Bordeaux, France
- CHU de Bordeaux, Service de Génétique Médicale, Centre de Référence Anomalies du Développement et Syndromes Malformatifs, Bordeaux, France
| | - Didier Lacombe
- Laboratoire Maladies Rares: Génétique et Métabolisme (MRGM), U 1211 INSERM, University Bordeaux, Bordeaux, France
- CHU de Bordeaux, Service de Génétique Médicale, Centre de Référence Anomalies du Développement et Syndromes Malformatifs, Bordeaux, France
| | - Caroline Rooryck
- Laboratoire Maladies Rares: Génétique et Métabolisme (MRGM), U 1211 INSERM, University Bordeaux, Bordeaux, France
- CHU de Bordeaux, Service de Génétique Médicale, Centre de Référence Anomalies du Développement et Syndromes Malformatifs, Bordeaux, France
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42
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Chen X, Qin Y, Zhou T, Jiang L, Lei F, Qin H, Zhang L, Zhou Z. The potential role of retinoic acid receptor α on glomerulosclerosis in rats and podocytes injury is associated with the induction of MMP2 and MMP9. Acta Biochim Biophys Sin (Shanghai) 2017; 49:669-679. [PMID: 28645189 DOI: 10.1093/abbs/gmx066] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Indexed: 02/05/2023] Open
Abstract
Retinoic acid receptor α (RARα) plays a crucial role in kidney disease. However, the underlying mechanisms in glomerulosclerosis (GS) is still not clear. The roles of RARα in an adriamycin (ADR)-induced GS rat model and in ADR-induced podocyte injury in vitro were investigated. RARα was over-expressed in GS rats, and serum, urine and kidney samples were collected to detect the induction of the expression of the receptor. RARα expression was inhibited and/or over-expressed in cultured podocytes following injury, as demonstrated by morphometric assays, cell toxicity, and matrix metalloproteinase (MMP) enzymatic activity. RARα displayed a renoprotective role in GS rats, resulting in a lower GS index, podocyte foot process fusion, and proteinuria, reduced serum creatinine and blood urea nitrogen. Further experiments indicated that RARα inhibited the accumulation of TGF-β1, α-smooth muscle actin, collagen IV, and fibronectin, while it induced MMP2 and MMP9 excessive expression in podocytes in vitro. RARα improved the renal function and attenuated the progression of GS that was associated with the over-expression of MMP2 and MMP9.
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Affiliation(s)
- Xiuping Chen
- Department of Pediatrics Nephrology, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Yuanhan Qin
- Department of Pediatrics Nephrology, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Tianbiao Zhou
- Department of Nephrology, the Second Affiliated Hospital of Shantou University Medical College, Shantou 515041, China
| | - Ling Jiang
- Department of Pediatrics Nephrology, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Fengying Lei
- Department of Pediatrics Nephrology, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - He Qin
- Department of Pediatrics Nephrology, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Lei Zhang
- Department of Pediatrics Nephrology, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Zhiqiang Zhou
- Department of Pediatrics Nephrology, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
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Abstract
During vertebrate somitogenesis, retinoic acid is known to establish the position of the determination wavefront, controlling where new somites are permitted to form along the anteroposterior body axis. Less is understood about how RAR regulates somite patterning, rostral-caudal boundary setting, specialization of myotome subdivisions or the specific RAR subtype that is required for somite patterning. Characterizing the function of RARβ has been challenging due to the absence of embryonic phenotypes in murine loss-of-function studies. Using the Xenopus system, we show that RARβ2 plays a specific role in somite number and size, restriction of the presomitic mesoderm anterior border, somite chevron morphology and hypaxial myoblast migration. Rarβ2 is the RAR subtype whose expression is most upregulated in response to ligand and its localization in the trunk somites positions it at the right time and place to respond to embryonic retinoid levels during somitogenesis. RARβ2 positively regulates Tbx3 a marker of hypaxial muscle, and negatively regulates Tbx6 via Ripply2 to restrict the anterior boundaries of the presomitic mesoderm and caudal progenitor pool. These results demonstrate for the first time an early and essential role for RARβ2 in vertebrate somitogenesis.
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Affiliation(s)
- Amanda Janesick
- Department of Developmental and Cell Biology, 2011 Biological Sciences 3, University of California, Irvine, CA 92697-2300, USA
| | - Weiyi Tang
- Department of Developmental and Cell Biology, 2011 Biological Sciences 3, University of California, Irvine, CA 92697-2300, USA
| | - Tuyen T L Nguyen
- Department of Developmental and Cell Biology, 2011 Biological Sciences 3, University of California, Irvine, CA 92697-2300, USA
| | - Bruce Blumberg
- Department of Developmental and Cell Biology, 2011 Biological Sciences 3, University of California, Irvine, CA 92697-2300, USA
- Department of Pharmaceutical Sciences, University of California, Irvine, CA 92697, USA
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44
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Zhang X, Yuan X, Chen L, Wei H, Chen J, Li T. The change in retinoic acid receptor signaling induced by prenatal marginal vitamin A deficiency and its effects on learning and memory. J Nutr Biochem 2017; 47:75-85. [PMID: 28570942 DOI: 10.1016/j.jnutbio.2017.05.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 04/29/2017] [Accepted: 05/16/2017] [Indexed: 01/08/2023]
Abstract
This study investigated the prenatal marginal vitamin A deficiency (mVAD)-related impairment in learning and memory and the interactions between RARα, Src and NR1. Learning and memory were assessed in adult rats that were exposed to prenatal mVAD with Morris water maze. The average escape time was longer in mVAD rats, and they passed the hidden platform fewer times during the memory retention test than normal vitamin A intake (VAN) rats. The mRNA and protein levels of RARα, Src and NR1 in mVAD rats were significantly lower than those in VAN rats. RARα and Src, but not NR1, were in the same protein complex. RA treatment-induced increase in RARα, Src and NR1 expressions in mVAD neurons was much lower than that in VAN neurons. Overexpression of RARα gene in VAN neurons induced an increase in RARα, Src and NR1 expressions, while silencing of RARα gene induced a decrease in expressions of RARα and Src, but not that of of NR1. In mVAD neurons, however, overexpression of RARα did not induce an increase in NR1 expression, while silencing of RARα gene had no effect on Src and NR1 expressions. Furthermore, inhibition of Src was associated with a decrease in NR1 expression but not that of RARα. Prenatal mVAD was associated with impaired learning and memory in adult rats. It is possible that mVAD-related decrease in RARα led to a decrease in Src expression, which in turn down-regulated NR1 expression and Ca2+ influx and eventually caused learning and memory deficits.
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Affiliation(s)
- Xuan Zhang
- Department of Primary Child Health Care, Children's Hospital of Chongqing Medical University, Chongqing, P.R. China; Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, P.R. China; China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, P.R. China
| | - Xingang Yuan
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, P.R. China; China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, P.R. China
| | - Lijun Chen
- Department of Nutrition, Southwest Hospital, Third Military Medical University, Chongqing, P.R. China
| | - Hua Wei
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, P.R. China; China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, P.R. China; Clinical Psychology Department, Children's Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Jie Chen
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, P.R. China; China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, P.R. China; Children's Nutrition Research Center, Chongqing, P.R. China
| | - Tingyu Li
- Department of Primary Child Health Care, Children's Hospital of Chongqing Medical University, Chongqing, P.R. China; Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, P.R. China; China International Science and Technology Cooperation base of Child development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, P.R. China.
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45
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Song H, Li L, Zhong L, Yang R, Jiang K, Yang X, Liu B. NLS‑RARα modulates acute promyelocytic leukemia NB4 cell proliferation and differentiation via the PI3K/AKT pathway. Mol Med Rep 2016; 14:5495-5500. [PMID: 27840989 PMCID: PMC5355661 DOI: 10.3892/mmr.2016.5932] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 10/18/2016] [Indexed: 01/10/2023] Open
Abstract
In patients with acute promyelocytic leukemia (APL), ~98% express the promyelocytic leukemia (PML)‑retinoic acid receptor α (RARα) fusion protein. Previous studies have shown that, in primary leukemia cells of patients with APL, the cleavage of PML‑RARα by neutrophil elastase is important for its ability to initiate APL. This cleavage separates the nuclear localization signal (NLS) from PML, leading to the formation of a novel protein, NLS‑RARα, although its underlying mechanism in APL remains to be fully elucidated. In the present study, the role of NLS‑RARα on the proliferation and differentiation of APL NB4 cells was investigated. Lentiviral vectors were constructed and transfected NLS‑RARα in NB4 cells, puromycin was used to select the stable transfected cell lines. Cell Counting Kit‑8 and flow cytometry analysis revealed that the efficient overexpression of NLS‑RARα significantly promoted NB4 cell proliferation and inhibited all‑trans retinoic acid‑induced cell differentiation. Furthermore, the NLS‑RARα protein promoted a significant increase in AKT and glycogen synthase kinase 3β (GSK‑3β) phosphorylation. The protein levels of phosphorylated (p) AKT and pGSK‑3β were decreased following pretreatment with the phosphatidylinositol 3‑kinase (PI3K) inhibitor, LY294002. These findings suggested that NLS‑RARα was an important molecule associated with the occurrence of APL via the PI3K‑AKT signaling pathway, and indicated that the NLS‑RARα protein may be a novel target for the treatment of APL.
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MESH Headings
- Cell Cycle/genetics
- Cell Differentiation/genetics
- Cell Line, Tumor
- Cell Proliferation/genetics
- Gene Expression
- Genetic Vectors/genetics
- Humans
- Leukemia, Promyelocytic, Acute/genetics
- Leukemia, Promyelocytic, Acute/metabolism
- Leukemia, Promyelocytic, Acute/pathology
- Nuclear Localization Signals/genetics
- Oncogene Proteins, Fusion/genetics
- Phosphatidylinositol 3-Kinases/metabolism
- Proto-Oncogene Proteins c-akt/metabolism
- Retinoic Acid Receptor alpha/genetics
- Signal Transduction
- Transduction, Genetic
- Tumor Cells, Cultured
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Affiliation(s)
- Hao Song
- Central Laboratory of Yong-Chuan Hospital, Chongqing Medical University, Chongqing 402160, P.R. China
- Department of Laboratory Medicine, The Key Laboratory of Diagnostics Medicine Designated by The Ministry of Education, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Liu Li
- Department of Laboratory Medicine, The Key Laboratory of Diagnostics Medicine Designated by The Ministry of Education, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Liang Zhong
- Department of Laboratory Medicine, The Key Laboratory of Diagnostics Medicine Designated by The Ministry of Education, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Rong Yang
- Department of Laboratory Medicine, The Key Laboratory of Diagnostics Medicine Designated by The Ministry of Education, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Kailing Jiang
- Department of Laboratory Medicine, The Key Laboratory of Diagnostics Medicine Designated by The Ministry of Education, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Xiaoqun Yang
- Department of Laboratory Medicine, The Key Laboratory of Diagnostics Medicine Designated by The Ministry of Education, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Beizhong Liu
- Central Laboratory of Yong-Chuan Hospital, Chongqing Medical University, Chongqing 402160, P.R. China
- Department of Laboratory Medicine, The Key Laboratory of Diagnostics Medicine Designated by The Ministry of Education, Chongqing Medical University, Chongqing 400016, P.R. China
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Glorieux C, Sandoval JM, Fattaccioli A, Dejeans N, Garbe JC, Dieu M, Verrax J, Renard P, Huang P, Calderon PB. Chromatin remodeling regulates catalase expression during cancer cells adaptation to chronic oxidative stress. Free Radic Biol Med 2016; 99:436-450. [PMID: 27591797 DOI: 10.1016/j.freeradbiomed.2016.08.031] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 08/27/2016] [Accepted: 08/28/2016] [Indexed: 12/31/2022]
Abstract
Regulation of ROS metabolism plays a major role in cellular adaptation to oxidative stress in cancer cells, but the molecular mechanism that regulates catalase, a key antioxidant enzyme responsible for conversion of hydrogen peroxide to water and oxygen, remains to be elucidated. Therefore, we investigated the transcriptional regulatory mechanism controlling catalase expression in three human mammary cell lines: the normal mammary epithelial 250MK primary cells, the breast adenocarcinoma MCF-7 cells and an experimental model of MCF-7 cells resistant against oxidative stress resulting from chronic exposure to H2O2 (Resox), in which catalase was overexpressed. Here we identify a novel promoter region responsible for the regulation of catalase expression at -1518/-1226 locus and the key molecules that interact with this promoter and affect catalase transcription. We show that the AP-1 family member JunB and retinoic acid receptor alpha (RARα) mediate catalase transcriptional activation and repression, respectively, by controlling chromatin remodeling through a histone deacetylases-dependent mechanism. This regulatory mechanism plays an important role in redox adaptation to chronic exposure to H2O2 in breast cancer cells. Our study suggests that cancer adaptation to oxidative stress may be regulated by transcriptional factors through chromatin remodeling, and reveals a potential new mechanism to target cancer cells.
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Affiliation(s)
- Christophe Glorieux
- Université catholique de Louvain, Louvain Drug Research Institute, Toxicology and Cancer Biology Research Group, 1200 Brussels, Belgium; Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, 510275 Guangzhou, China.
| | - Juan Marcelo Sandoval
- Université catholique de Louvain, Louvain Drug Research Institute, Toxicology and Cancer Biology Research Group, 1200 Brussels, Belgium; Facultad de Ciencias de la Salud, Universidad Arturo Prat, 1100000 Iquique, Chile
| | - Antoine Fattaccioli
- Laboratory of Biochemistry and Cell Biology (URBC), NAmur Research Institute for LIfe Sciences (NARILIS), University of Namur, 5000 Namur, Belgium
| | - Nicolas Dejeans
- Université catholique de Louvain, Louvain Drug Research Institute, Toxicology and Cancer Biology Research Group, 1200 Brussels, Belgium
| | - James C Garbe
- Biological Systems and Engineering, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Marc Dieu
- Mass Spectrometry University of Namur (MaSUN), University of Namur, 5000 Namur, Belgium
| | - Julien Verrax
- Université catholique de Louvain, Louvain Drug Research Institute, Toxicology and Cancer Biology Research Group, 1200 Brussels, Belgium
| | - Patricia Renard
- Laboratory of Biochemistry and Cell Biology (URBC), NAmur Research Institute for LIfe Sciences (NARILIS), University of Namur, 5000 Namur, Belgium
| | - Peng Huang
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, 510275 Guangzhou, China; Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Pedro Buc Calderon
- Université catholique de Louvain, Louvain Drug Research Institute, Toxicology and Cancer Biology Research Group, 1200 Brussels, Belgium; Facultad de Ciencias de la Salud, Universidad Arturo Prat, 1100000 Iquique, Chile.
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Kalitin NN, Buravtsova IV. [The significance of expression of isoforms RARa1 and RARa2 in response to medicinal therapy and in evaluation of total survival of patients with primarily detected multiple myeloma]. Klin Lab Diagn 2016; 61:474-478. [PMID: 30601638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
INTRODUCTION The RARa is a transcription factor playing important role in such processes as proliferation, differentiation and apoptosis of cells in norm and in tumor. At the same time, it is little known about significance of expression of two major products of transcription of gene RARa - isoforms RARa and RARa - in pathogenesis of solid and non-solid tumors, including multiple myeloma. The actual data testify ambiguity of input made by isoforms RARa and RARa into processes of tumor development and progression of malignant tumors. THE RESULTS It was established that higher level of expression of isoform RARa in combination with increased expression of isoform RARβ (group 1) statistically reliable associated with lesser decreasing of concentration of Bence Jones protein in urine of patients in the result of applied treatment and, therefore, lesser effectiveness of response to standard treatment according protocol M-2 in comparison with group II which included patients with lesser levels of expression of RARa and RARβ (32.8% and 62.8% for groups I and II correspondingly; p=0.037). The analysis of indices of survival of examined patients in groups I and II demonstrated that median of total survival of patients from group I was reliably lower than in patients included into group II (30 and 84 correspondingly; p=0.046). CONCLUSION The results of study demonstrate that increased level of expression in the first instance of isoform RARa in combination with hyper-expression of isoform RARβ but not RARa can have unfavorable significance in case of evaluation of response to medicinal therapy and prognosis of total survival in patients with multiple melanoma.
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Nichol JN, Galbraith MD, Kleinman CL, Espinosa JM, Miller WH. NPM and BRG1 Mediate Transcriptional Resistance to Retinoic Acid in Acute Promyelocytic Leukemia. Cell Rep 2016; 14:2938-49. [PMID: 26997274 DOI: 10.1016/j.celrep.2016.02.074] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 12/16/2015] [Accepted: 02/17/2016] [Indexed: 11/19/2022] Open
Abstract
Perturbation in the transcriptional control of genes driving differentiation is an established paradigm whereby oncogenic fusion proteins promote leukemia. From a retinoic acid (RA)-sensitive acute promyelocytic leukemia (APL) cell line, we derived an RA-resistant clone characterized by a block in transcription initiation, despite maintaining wild-type PML/RARA expression. We uncovered an aberrant interaction among PML/RARA, nucleophosmin (NPM), and topoisomerase II beta (TOP2B). Surprisingly, RA stimulation in these cells results in enhanced chromatin association of the nucleosome remodeler BRG1. Inhibition of NPM or TOP2B abrogated BRG1 recruitment. Furthermore, NPM inhibition and targeting BRG1 restored differentiation when combined with RA. Here, we demonstrate a role for NPM and BRG1 in obstructing RA differentiation and implicate chromatin remodeling in mediating therapeutic resistance in malignancies. NPM mutations are the most common genetic change in patients with acute leukemia (AML); therefore, our model may be applicable to other more common leukemias driven by NPM.
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Affiliation(s)
- Jessica N Nichol
- Division of Experimental Medicine, Department of Oncology, Segal Cancer Centre and Lady Davis Institute, Jewish General Hospital, McGill University, Montréal, QC H3T 1E2, Canada
| | - Matthew D Galbraith
- Department of Pharmacology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Molecular, Cellular, and Developmental Biology and Howard Hughes Medical Institute, University of Colorado Boulder, Boulder, CO 80309, USA
| | - Claudia L Kleinman
- Department of Human Genetics, Segal Cancer Centre and Lady Davis Institute, Jewish General Hospital, McGill University, Montréal, QC H3T 1E2, Canada
| | - Joaquín M Espinosa
- Department of Pharmacology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Molecular, Cellular, and Developmental Biology and Howard Hughes Medical Institute, University of Colorado Boulder, Boulder, CO 80309, USA; Linda Crnic Institute for Down Syndrome, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Wilson H Miller
- Division of Experimental Medicine, Department of Oncology, Segal Cancer Centre and Lady Davis Institute, Jewish General Hospital, McGill University, Montréal, QC H3T 1E2, Canada.
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Kalitin NN, Chernykh YB, Buravtsova IV. [[Gene expression of key enzymes for all-trans- retinoic acid biosynthesis - ALDHJAI and RDH10: relationship with co-expression of nuclear receptors RARα and PPARβ/δ genes and some clinical characteristics in multiple myeloma]. Vopr Onkol 2016; 62:626-631. [PMID: 30695588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The significance of quantitative changes of ALDH1A1 and RDH10 gene expression in 22 non-treated multiple myeloma patients were studied. We found a direct correlation between the expression of ALDH1A1 and RDH10 genes. We showed that ALDHA1 and RDH10 expression were inversely related with expression of a key gene for all-trans-retinoic acid catabolism, CYP26A1, and correlated with expression of RARα and PPARβ/ genes. In addition for the first time it was re- vealed that increased expression of ALDH1A1-RDH10-RARα- PPARβ/δ pattern could be considered as adverse prognostic factor associated with a higher concentration of paraprotein and worst overall survival of patients with newly diagnosed multiple myeloma.
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