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Cao Y, Qiu G, Dong Y, Zhao W, Wang Y. Exploring the role of m 6 A writer RBM15 in cancer: a systematic review. Front Oncol 2024; 14:1375942. [PMID: 38915367 PMCID: PMC11194397 DOI: 10.3389/fonc.2024.1375942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 05/17/2024] [Indexed: 06/26/2024] Open
Abstract
In the contemporary epoch, cancer stands as the predominant cause of premature global mortality, necessitating a focused exploration of molecular markers and advanced therapeutic strategies. N6-methyladenosine (m6A), the most prevalent mRNA modification, undergoes dynamic regulation by enzymes referred to as methyltransferases (writers), demethylases (erasers), and effective proteins (readers). Despite lacking methylation activity, RNA-binding motif protein 15 (RBM15), a member of the m6A writer family, assumes a crucial role in recruiting the methyltransferase complex (MTC) and binding to mRNA. Although the impact of m6A modifications on cancer has garnered widespread attention, RBM15 has been relatively overlooked. This review briefly outlines the structure and operational mechanism, and delineates the unique role of RBM15 in various cancers, shedding light on its molecular basis and providing a groundwork for potential tumor-targeted therapies.
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Affiliation(s)
- Yuan Cao
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning, China
| | - Guanzhen Qiu
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning, China
- Shenyang 242 Hospital, Shenyang, Liaoning, China
| | - Yu Dong
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning, China
| | - Wei Zhao
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning, China
| | - Yong Wang
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning, China
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Li J, Kalev‐Zylinska ML. Advances in molecular characterization of pediatric acute megakaryoblastic leukemia not associated with Down syndrome; impact on therapy development. Front Cell Dev Biol 2023; 11:1170622. [PMID: 37325571 PMCID: PMC10267407 DOI: 10.3389/fcell.2023.1170622] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 05/19/2023] [Indexed: 06/17/2023] Open
Abstract
Acute megakaryoblastic leukemia (AMKL) is a rare subtype of acute myeloid leukemia (AML) in which leukemic blasts have megakaryocytic features. AMKL makes up 4%-15% of newly diagnosed pediatric AML, typically affecting young children (less than 2 years old). AMKL associated with Down syndrome (DS) shows GATA1 mutations and has a favorable prognosis. In contrast, AMKL in children without DS is often associated with recurrent and mutually exclusive chimeric fusion genes and has an unfavorable prognosis. This review mainly summarizes the unique features of pediatric non-DS AMKL and highlights the development of novel therapies for high-risk patients. Due to the rarity of pediatric AMKL, large-scale multi-center studies are needed to progress molecular characterization of this disease. Better disease models are also required to test leukemogenic mechanisms and emerging therapies.
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Affiliation(s)
- Jixia Li
- Blood and Cancer Biology Laboratory, Department of Molecular Medicine and Pathology, University of Auckland, Auckland, New Zealand
- Department of Laboratory Medicine, School of Medicine, Foshan University, Foshan, China
| | - Maggie L. Kalev‐Zylinska
- Blood and Cancer Biology Laboratory, Department of Molecular Medicine and Pathology, University of Auckland, Auckland, New Zealand
- Haematology Laboratory, Department of Pathology and Laboratory Medicine, Auckland City Hospital, Auckland, New Zealand
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Fang J, Wu X, He J, Zhang H, Chen X, Zhang H, Novakovic B, Qi H, Yu X. RBM15 suppresses hepatic insulin sensitivity of offspring of gestational diabetes mellitus mice via m6A-mediated regulation of CLDN4. Mol Med 2023; 29:23. [PMID: 36803098 PMCID: PMC9942341 DOI: 10.1186/s10020-023-00615-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 01/29/2023] [Indexed: 02/22/2023] Open
Abstract
BACKGROUND Gestational diabetes Mellitus (GDM) is a common pregnancy-specific disease with high morbidity, which is linked to a high risk of obesity and diabetes in offspring. N6-methyladenosine modification of RNA is emerging as an important epigenetic mechanism that is widely manifested in many diseases. This study aimed to investigate the mechanism of m6A methylation in metabolic syndrome in offspring result from intrauterine hyperglycemia. METHODS GDM mice were established by feeding a high-fat diet 1 weeks before pregnancy. The m6A RNA methylation quantification kit was used to detect liver tissue methylation levels. PCR array was used to determine the expression of the m6A methylation modification enzyme. Immunohistochemistry, qRT-PCR, and western blot were used to examine the expression of RBM15, METTL13, IGF2BP1, and IGF2BP2. Subsequently, methylated RNA immunoprecipitation sequencing combined with mRNA sequencing, followed by dot blot and glucose uptake tests, were performed. RESULTS In this study, we found that offspring from a GDM mother were more vulnerable to glucose intolerance and insulin resistance. GC-MS revealed significant metabolic changes including saturated fatty acids and unsaturated fatty acids in liver of GDM offspring. We also demonstrated that global mRNA m6A methylation level was significantly increased in the fetal liver of GDM mice, indicating epigenetic change may have a strong relationship with the mechanism of metabolism syndrome. Concordantly, RBM15, the RNA binding methyltransferase, was upregulated in the liver. In vitro, RBM15 suppressed insulin sensitivity and increased insulin resistance through m6A-regulated epigenetic inhabitation of CLDN4. Moreover, MeRIP-sequencing and mRNA-sequencing revealed that differently regulated genes with differential m6A peaks were enriched in metabolic pathways. CONCLUSION Our study revealed the essential role of RBM15 in insulin resistance and the effect of RBM15-regulated m6A modification in the metabolic syndrome of offspring of GDM mice.
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Affiliation(s)
- Jie Fang
- The Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Rd., Chongqing, 400016, China.,Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Xiafei Wu
- The Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Rd., Chongqing, 400016, China.,Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Jie He
- The Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Rd., Chongqing, 400016, China.,Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Hanwen Zhang
- The Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Rd., Chongqing, 400016, China.,Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Xuyang Chen
- The Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Rd., Chongqing, 400016, China.,Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Hua Zhang
- The Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Rd., Chongqing, 400016, China.,Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Boris Novakovic
- Department of Paediatrics, University of Melbourne, Royal Children's Hospital, Parkville, VIC, Australia
| | - Hongbo Qi
- The Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Rd., Chongqing, 400016, China. .,Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, 400016, China. .,Chongqing Health Center for Women and Children, Chongqing, 401120, China.
| | - Xinyang Yu
- The Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Rd., Chongqing, 400016, China. .,Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, 400016, China.
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Drexler HG, Quentmeier H. The LL-100 Cell Lines Panel: Tool for Molecular Leukemia-Lymphoma Research. Int J Mol Sci 2020; 21:ijms21165800. [PMID: 32823535 PMCID: PMC7461097 DOI: 10.3390/ijms21165800] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/04/2020] [Accepted: 08/11/2020] [Indexed: 12/17/2022] Open
Abstract
Certified cell line models provide ideal experimental platforms to answer countless scientific questions. The LL-100 panel is a cohort of cell lines that are broadly representative of all leukemia–lymphoma entities (including multiple myeloma and related diseases), rigorously authenticated and validated, and comprehensively annotated. The process of the assembly of the LL-100 panel was based on evidence and experience. To expand the genetic characterization across all LL-100 cell lines, we performed whole-exome sequencing and RNA sequencing. Here, we describe the conception of the panel and showcase some exemplary applications with a focus on cancer genomics. Due diligence was paid to exclude cross-contaminated and non-representative cell lines. As the LL-100 cell lines are so well characterized and readily available, the panel will be a valuable resource for identifying cell lines with mutations in cancer genes, providing superior model systems. The data also add to the current knowledge of the molecular pathogenesis of leukemia–lymphoma. Additional efforts to expand the breadth of available high-quality cell lines are clearly warranted.
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Affiliation(s)
- Hans G. Drexler
- Department of Human and Animal Cell Lines, Leibniz-Institute DSMZ-German Collection of Microorganisms and Cell Cultures, 38124 Braunschweig, Germany;
- Faculty of Life Sciences, Technical University of Braunschweig, 38124 Braunschweig, Germany
- Correspondence:
| | - Hilmar Quentmeier
- Department of Human and Animal Cell Lines, Leibniz-Institute DSMZ-German Collection of Microorganisms and Cell Cultures, 38124 Braunschweig, Germany;
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Zhang HM, Li H, Wang GX, Wang J, Xiang Y, Huang Y, Shen C, Dai ZT, Li JP, Zhang TC, Liao XH. MKL1/miR-5100/CAAP1 loop regulates autophagy and apoptosis in gastric cancer cells. Neoplasia 2020; 22:220-230. [PMID: 32315812 PMCID: PMC7167518 DOI: 10.1016/j.neo.2020.03.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 03/23/2020] [Indexed: 02/06/2023] Open
Abstract
Purpose miR-5100 participates in the proliferation of lung cancer and pancreatic cancer cells, and participates in the differentiation of osteoblasts. However, the regulation of gastric cancer cells in gastric cancer cells remains unclear. Experimental design The blood of patients was collected to detect the expression level of miR-5100, and the apoptosis and autophagy levels of cells were detected using western blot, flow cytometry, and confocal. At the same time, in vitro tumor formation experiments in nude mice were used to verify the results of in vitro experiments. Results The expression of miR-5100 is related to the prognosis of gastric cancer, miR-5100 can enhance the apoptosis level of gastric cancer cells and inhibit the occurrence of autophagy by targeting CAAP1. MKL1 can inhibit the apoptosis of gastric cancer cells and promote the occurrence of autophagy by targeting CAAP1. At the same time, MKL1 can also increase the expression of miR-5100. Conclusions Our research reveals the mechanism by which the MKL1/miR-5100/CAAP1 loop regulates apoptosis and autophagy levels in gastric cancer cells, and miR-5100 is expected to become a new potential target for gastric cancer treatment.
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Affiliation(s)
- Hui-Min Zhang
- Institute of Biology and Medicine, College of Life and Health Sciences, Wuhan University of Science and Technology, 430000, PR China
| | - Hui Li
- Institute of Biology and Medicine, College of Life and Health Sciences, Wuhan University of Science and Technology, 430000, PR China
| | - Gen-Xin Wang
- Institute of Biology and Medicine, College of Life and Health Sciences, Wuhan University of Science and Technology, 430000, PR China.
| | - Jun Wang
- Institute of Biology and Medicine, College of Life and Health Sciences, Wuhan University of Science and Technology, 430000, PR China
| | - Yuan Xiang
- Institute of Biology and Medicine, College of Life and Health Sciences, Wuhan University of Science and Technology, 430000, PR China
| | - You Huang
- Institute of Biology and Medicine, College of Life and Health Sciences, Wuhan University of Science and Technology, 430000, PR China
| | - Chao Shen
- Institute of Biology and Medicine, College of Life and Health Sciences, Wuhan University of Science and Technology, 430000, PR China
| | - Zhou-Tong Dai
- Institute of Biology and Medicine, College of Life and Health Sciences, Wuhan University of Science and Technology, 430000, PR China
| | - Jia-Peng Li
- Institute of Biology and Medicine, College of Life and Health Sciences, Wuhan University of Science and Technology, 430000, PR China
| | - Tong-Cun Zhang
- Institute of Biology and Medicine, College of Life and Health Sciences, Wuhan University of Science and Technology, 430000, PR China.
| | - Xing-Hua Liao
- Institute of Biology and Medicine, College of Life and Health Sciences, Wuhan University of Science and Technology, 430000, PR China.
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Milan T, Canaj H, Villeneuve C, Ghosh A, Barabé F, Cellot S, Wilhelm BT. Pediatric leukemia: Moving toward more accurate models. Exp Hematol 2019; 74:1-12. [PMID: 31154068 DOI: 10.1016/j.exphem.2019.05.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 05/19/2019] [Accepted: 05/22/2019] [Indexed: 02/07/2023]
Abstract
Leukemia is a complex genetic disease caused by errors in differentiation, growth, and apoptosis of hematopoietic cells in either lymphoid or myeloid lineages. Large-scale genomic characterization of thousands of leukemia patients has produced a tremendous amount of data that have enabled a better understanding of the differences between adult and pediatric patients. For instance, although phenotypically similar, pediatric and adult myeloid leukemia patients differ in their mutational profiles, typically involving either chromosomal translocations or recurrent single-base-pair mutations, respectively. To elucidate the molecular mechanisms underlying the biology of this cancer, continual efforts have been made to develop more contextually and biologically relevant experimental models. Leukemic cell lines, for example, provide an inexpensive and tractable model but often fail to recapitulate critical aspects of tumor biology. Likewise, murine leukemia models of leukemia have been highly informative but also do not entirely reproduce the human disease. More recent advances in the development of patient-derived xenografts (PDXs) or human models of leukemias are poised to provide a more comprehensive, and biologically relevant, approach to directly assess the impact of the in vivo environment on human samples. In this review, the advantages and limitations of the various current models used to functionally define the genetic requirements of leukemogenesis are discussed.
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MESH Headings
- Adolescent
- Animals
- Cell Differentiation
- Child
- Child, Preschool
- Female
- Heterografts
- Humans
- Infant
- Infant, Newborn
- Leukemia, Myeloid/genetics
- Leukemia, Myeloid/pathology
- Leukemia, Myeloid/therapy
- Male
- Mice
- Neoplasm Transplantation
- Neoplasms, Experimental/genetics
- Neoplasms, Experimental/metabolism
- Neoplasms, Experimental/pathology
- Neoplasms, Experimental/therapy
- Translocation, Genetic
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Affiliation(s)
- Thomas Milan
- Laboratory for High Throughput Biology, Institute for Research in Immunology and Cancer, Montréal, QC, Canada
| | - Hera Canaj
- Laboratory for High Throughput Biology, Institute for Research in Immunology and Cancer, Montréal, QC, Canada
| | - Chloe Villeneuve
- Laboratory for High Throughput Biology, Institute for Research in Immunology and Cancer, Montréal, QC, Canada
| | - Aditi Ghosh
- Laboratory for High Throughput Biology, Institute for Research in Immunology and Cancer, Montréal, QC, Canada
| | - Frédéric Barabé
- Centre de recherche en infectiologie du CHUL, Centre de recherche du CHU de Québec, Quebec City, QC, Canada; CHU de Québec Hôpital Enfant-Jésus, Quebec City, QC, Canada; Department of Medicine, Université Laval, Quebec City, QC, Canada
| | - Sonia Cellot
- Division of Hematology, Department of Pediatrics, Ste-Justine Hospital, Montréal, Université de Montréal, Montréal, QC, Canada
| | - Brian T Wilhelm
- Laboratory for High Throughput Biology, Institute for Research in Immunology and Cancer, Montréal, QC, Canada; Department of Medicine, Université de Montréal, Montréal, QC, Canada.
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Lopez CK, Mercher T. [Pediatric de novo acute megakaryoblastic leukemia: an affair of complexes]. Med Sci (Paris) 2018; 34:954-962. [PMID: 30526836 DOI: 10.1051/medsci/2018237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Pediatric acute megakaryoblastic leukemia (AMKL) are generally associated with poor prognosis and the expression of fusion oncogenes involving transcriptional regulators. Recent results indicate that the ETO2-GLIS2 fusion, associated with 25-30 % of pediatric AMKL, binds and alters the activity of regulatory regions of gene expression, called "enhancers", resulting in the deregulation of GATA and ETS factors essential for the development of hematopoietic stem cells. An imbalance in GATA/ETS factor activity is also found in other AMKL subgroups. This review addresses the transcriptional bases of transformation in pediatric AMKL and therapeutic perspectives.
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Affiliation(s)
- Cécile K Lopez
- Inserm U1170, Institut Gustave Roussy, Pavillon recherche 2, 39 rue Camille Desmoulins, 94800 Villejuif, France
| | - Thomas Mercher
- Inserm U1170, Institut Gustave Roussy, Pavillon recherche 2, 39 rue Camille Desmoulins, 94800 Villejuif, France
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