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Deng Y, Song L, Huang J, Zhou W, Liu Y, Lu X, Zhao H, Liu D. Astragalus polysaccharides ameliorates experimental colitis by regulating memory B cells metabolism. Chem Biol Interact 2024; 394:110969. [PMID: 38522565 DOI: 10.1016/j.cbi.2024.110969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 03/17/2024] [Accepted: 03/19/2024] [Indexed: 03/26/2024]
Abstract
It is well-established that the reduced Memory B cells (MBCs) play an important role in the pathogenesis of ulcerative colitis (UC), rendering them a potential therapeutic target for UC intervention. Astragalus polysaccharide (APS), a primary active constituent derived from the classic traditional Chinese medicine Astragalus membranaceus (AM), has been used for centuries in the treatment of UC in both human and animal subjects due to its renowned immunomodulatory properties. However, it is unknown whether APS can regulate MBCs to alleviate experimental colitis. In the present investigation, the murine colitis was successfully induced using dextran sulphate sodium (DSS) and subsequently treated with APS for a duration of 7 days. APS exhibited significant efficacy in reducing the disease activity index (DAI), colonic weight index, the index of colonic weight/colonic length. Furthermore, APS mitigated colonic pathological injuries, restored the colonic length, elevated the immunoglobulin A (IgA), transforming growth factor-β1 (TGF-β1) and interleukin (IL)-10 levels, while concurrently suppressing IgG, IgM, IL-6, tumor necrosis factor alpha (TNF-α) levels. Crucially, the quantities of MBCs, IgA+MBCs and forkhead box P3 (Foxp3+) MBCs were notably increased along with a concurrent decrease in IgG1+MBCs, IG2a+MBCs, IgG2b+MBCs after APS administration in colitis mice. Additionally, the Mitotracker red expressions of MBCs and their subgroups demonstrated a significantly up-regulation. Meanwhile, the transcriptomics analysis identified mitochondrial metabolism as the predominant and pivotal mechanism underlying APS-mediated mitigation of DSS-induced colitis. Key differentially expressed genes, including B-cell linker (BLNK), aldehyde dehydrogenase 1A1 (ALDH1A1), B-cell lymphoma 6 (BCL-6), B-lymphocyte-induced maturation protein 1 (Blimp-1), paired box gene 5 (PAX5), purinergic 2 × 7 receptor (P2X7R), B Cell activation factor (BAFF), B Cell activation factor receptor (BAFFR), CD40, nuclear factor kappa-B (NF-κB), IL-6 and so on were implicated in this process. These mRNA expressions were validated through quantitative polymerase chain reaction (qPCR) and immunohistochemistry. These findings revealed that APS effectively restored MBCs and their balance to ameliorate DSS-induced colitis, which was potentially realized via promoting mitochondrial metabolism to maintain MBCs activation.
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Affiliation(s)
- Yifei Deng
- Clinical Medical School, Jiangxi University of Chinese Medicine, Nanchang, 330004, Jiangxi Province, China
| | - Lizhao Song
- Department of Postgraduate, Jiangxi University of Chinese Medicine, Nanchang, 330004, Jiangxi Province, China
| | - Jiaqi Huang
- Department of Postgraduate, Jiangxi University of Chinese Medicine, Nanchang, 330004, Jiangxi Province, China
| | - Wen Zhou
- Nanchang Medical College, Nanchang, 330052, Jiangxi Province, China
| | - Yali Liu
- Nanchang Medical College, Nanchang, 330052, Jiangxi Province, China
| | - Xiuyun Lu
- Nanchang Medical College, Nanchang, 330052, Jiangxi Province, China.
| | - Haimei Zhao
- College of Traditional Chinese Medicine, Jiangxi University of Chinese Medicine, Nanchang, 330004, Jiangxi Province, China; Formula-Pattern Research Center of Jiangxi University of Chinese Medicine, Nanchang, 330004, Jiangxi Province, China.
| | - Duanyong Liu
- Formula-Pattern Research Center of Jiangxi University of Chinese Medicine, Nanchang, 330004, Jiangxi Province, China; School of Nursing, Jiangxi University of Chinese Medicine, Nanchang, 330004, Jiangxi Province, China.
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2
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Holubekova V, Loderer D, Grendar M, Mikolajcik P, Kolkova Z, Turyova E, Kudelova E, Kalman M, Marcinek J, Miklusica J, Laca L, Lasabova Z. Differential gene expression of immunity and inflammation genes in colorectal cancer using targeted RNA sequencing. Front Oncol 2023; 13:1206482. [PMID: 37869102 PMCID: PMC10586664 DOI: 10.3389/fonc.2023.1206482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 08/24/2023] [Indexed: 10/24/2023] Open
Abstract
Introduction Colorectal cancer (CRC) is a heterogeneous disease caused by molecular changes, as driver mutations, gene methylations, etc., and influenced by tumor microenvironment (TME) pervaded with immune cells with both pro- and anti-tumor effects. The studying of interactions between the immune system (IS) and the TME is important for developing effective immunotherapeutic strategies for CRC. In our study, we focused on the analysis of expression profiles of inflammatory and immune-relevant genes to identify aberrant signaling pathways included in carcinogenesis, metastatic potential of tumors, and association of Kirsten rat sarcoma virus (KRAS) gene mutation. Methods A total of 91 patients were enrolled in the study. Using NGS, differential gene expression analysis of 11 tumor samples and 11 matching non-tumor controls was carried out by applying a targeted RNA panel for inflammation and immunity genes containing 475 target genes. The obtained data were evaluated by the CLC Genomics Workbench and R library. The significantly differentially expressed genes (DEGs) were analyzed in Reactome GSA software, and some selected DEGs were used for real-time PCR validation. Results After prioritization, the most significant differences in gene expression were shown by the genes TNFRSF4, IRF7, IL6R, NR3CI, EIF2AK2, MIF, CCL5, TNFSF10, CCL20, CXCL11, RIPK2, and BLNK. Validation analyses on 91 samples showed a correlation between RNA-seq data and qPCR for TNFSF10, RIPK2, and BLNK gene expression. The top differently regulated signaling pathways between the studied groups (cancer vs. control, metastatic vs. primary CRC and KRAS positive and negative CRC) belong to immune system, signal transduction, disease, gene expression, DNA repair, and programmed cell death. Conclusion Analyzed data suggest the changes at more levels of CRC carcinogenesis, including surface receptors of epithelial or immune cells, its signal transduction pathways, programmed cell death modifications, alterations in DNA repair machinery, and cell cycle control leading to uncontrolled proliferation. This study indicates only basic molecular pathways that enabled the formation of metastatic cancer stem cells and may contribute to clarifying the function of the IS in the TME of CRC. A precise identification of signaling pathways responsible for CRC may help in the selection of personalized pharmacological treatment.
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Affiliation(s)
- Veronika Holubekova
- Laboratory of Genomics and Prenatal Diagnostics, Biomedical Center in Martin, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovakia
| | - Dusan Loderer
- Laboratory of Genomics and Prenatal Diagnostics, Biomedical Center in Martin, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovakia
| | - Marian Grendar
- Laboratory of Bioinformatics and Biostatistics, Biomedical Center in Martin, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovakia
| | - Peter Mikolajcik
- Clinic of Surgery and Transplant Center, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin University Hospital, Martin, Slovakia
| | - Zuzana Kolkova
- Laboratory of Genomics and Prenatal Diagnostics, Biomedical Center in Martin, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin, Slovakia
| | - Eva Turyova
- Department of Molecular Biology and Genomics, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovakia
| | - Eva Kudelova
- Clinic of Surgery and Transplant Center, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin University Hospital, Martin, Slovakia
| | - Michal Kalman
- Department of Pathological Anatomy, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin University Hospital, Martin, Slovakia
| | - Juraj Marcinek
- Department of Pathological Anatomy, Jessenius Faculty of Medicine, Comenius University in Bratislava, Martin University Hospital, Martin, Slovakia
| | - Juraj Miklusica
- Clinic of Surgery and Transplant Center, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin University Hospital, Martin, Slovakia
| | - Ludovit Laca
- Clinic of Surgery and Transplant Center, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin University Hospital, Martin, Slovakia
| | - Zora Lasabova
- Department of Molecular Biology and Genomics, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovakia
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3
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Kojima Y, Kawashima F, Yasuda T, Odaira K, Inagaki Y, Yamada C, Muraki A, Noura M, Okamoto S, Tamura S, Iwamoto E, Sanada M, Matsumura I, Miyazaki Y, Kojima T, Kiyoi H, Tsuzuki S, Hayakawa F. EBF1-JAK2 inhibits the PAX5 function through physical interaction with PAX5 and kinase activity. Int J Hematol 2023:10.1007/s12185-023-03585-z. [PMID: 37149540 DOI: 10.1007/s12185-023-03585-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 03/13/2023] [Accepted: 03/16/2023] [Indexed: 05/08/2023]
Abstract
Gene aberrations of B-cell regulators and growth signal components such as the JAK-STAT pathway are frequently found in B-cell acute lymphoblastic leukemia (B-ALL). EBF1 is a B-cell regulator that regulates the expression of PAX5 and co-operates with PAX5 to regulate B-cell differentiation. Here, we analyzed the function of the fusion protein of EBF1 and JAK2, EBF1-JAK2 (E-J). E-J caused constitutive activation of JAK-STAT and MAPK pathways and induced autonomous cell growth in a cytokine-dependent cell line. E-J did not affect the transcriptional activity of EBF1 but inhibited that of PAX5. Both the physical interaction of E-J with PAX5 and kinase activity of E-J were required for E-J to inhibit PAX5 function, although the detailed mechanism of inhibition remains unclear. Importantly, gene set enrichment analysis using the results of our previous RNA-seq data of 323 primary BCR-ABL1-negative ALL samples demonstrated repression of the transcriptional target genes of PAX5 in E-J-positive ALL cells, which suggests that E-J also inhibited PAX5 function in ALL cells. Our results shed new light on the mechanisms of differentiation block by kinase fusion proteins.
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Affiliation(s)
- Yukino Kojima
- Division of Cellular and Genetic Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, 1-1-20 Daiko-Minami, Higashi-ku, Nagoya, 461-0047, Japan
| | - Fumika Kawashima
- Division of Cellular and Genetic Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, 1-1-20 Daiko-Minami, Higashi-ku, Nagoya, 461-0047, Japan
| | - Takahiko Yasuda
- Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - Koya Odaira
- Division of Cellular and Genetic Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, 1-1-20 Daiko-Minami, Higashi-ku, Nagoya, 461-0047, Japan
| | - Yuichiro Inagaki
- Department of Hematology and Oncology, Anjo Kosei Hospital, Anjo, Japan
| | - Chiharu Yamada
- Division of Cellular and Genetic Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, 1-1-20 Daiko-Minami, Higashi-ku, Nagoya, 461-0047, Japan
| | - Ami Muraki
- Division of Cellular and Genetic Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, 1-1-20 Daiko-Minami, Higashi-ku, Nagoya, 461-0047, Japan
| | - Mina Noura
- Division of Cellular and Genetic Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, 1-1-20 Daiko-Minami, Higashi-ku, Nagoya, 461-0047, Japan
| | - Shuichi Okamoto
- Division of Cellular and Genetic Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, 1-1-20 Daiko-Minami, Higashi-ku, Nagoya, 461-0047, Japan
| | - Shogo Tamura
- Division of Cellular and Genetic Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, 1-1-20 Daiko-Minami, Higashi-ku, Nagoya, 461-0047, Japan
| | - Eisuke Iwamoto
- Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - Masashi Sanada
- Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - Itaru Matsumura
- Department of Hematology and Rheumatology, Kindai University School of Medicine, Osaka, Japan
| | - Yasushi Miyazaki
- Department of Hematology, Atomic Bomb Disease and Hibakusha Medicine Unit, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Tetsuhito Kojima
- Division of Cellular and Genetic Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, 1-1-20 Daiko-Minami, Higashi-ku, Nagoya, 461-0047, Japan
- Aichi Health Promotion Foundation, Nagoya, Japan
| | - Hitoshi Kiyoi
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Shinobu Tsuzuki
- Department of Biochemistry, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Fumihiko Hayakawa
- Division of Cellular and Genetic Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, 1-1-20 Daiko-Minami, Higashi-ku, Nagoya, 461-0047, Japan.
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4
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Odaira K, Yasuda T, Okada K, Shimooka T, Kojima Y, Noura M, Tamura S, Kurahashi S, Iwamoto E, Sanada M, Matsumura I, Miyazaki Y, Kojima T, Kiyoi H, Tsuzuki S, Hayakawa F. Functional inhibition of MEF2 by C/EBP is a possible mechanism of leukemia development by CEBP-IGH fusion gene. Cancer Sci 2023; 114:781-792. [PMID: 36341510 PMCID: PMC9986073 DOI: 10.1111/cas.15641] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 10/18/2022] [Accepted: 10/24/2022] [Indexed: 11/09/2022] Open
Abstract
CEBPA-IGH, a fusion gene of the immunoglobulin heavy-chain locus (IGH) and the CCAAT enhancer-binding protein α (C/EBPα) gene, is recurrently found in B-ALL cases and causes aberrant expression of C/EBPα, a master regulator of granulocyte differentiation, in B cells. Forced expression of C/EBPα in B cells was reported to cause loss of B-cell identity due to the inhibition of Pax5, a master regulator of B-cell differentiation; however, it is not known whether the same mechanism is applicable for B-ALL development by CEBPA-IGH. It is known that a full-length isoform of C/EBPα, p42, promotes myeloid differentiation, whereas its N-terminal truncated isoform, p30, inhibits myeloid differentiation through the inhibition of p42; however, the differential role between p42 and p30 in ALL development has not been clarified. In the present study, we examined the effect of the expression of p42 and p30 in B cells by performing RNA-seq of mRNA from LCL stably transfected with p42 or p30. Unexpectedly, suppression of PAX5 target genes was barely observed. Instead, both isoforms suppressed the target genes of MEF2 family members (MEF2s), other regulators of B-cell differentiation. Similarly, MEF2s target genes rather than PAX5 target genes were suppressed in CEBP-IGH-positive ALL (n = 8) compared with other B-ALL (n = 315). Furthermore, binding of both isoforms to MEF2s target genes and the reduction of surrounding histone acetylation were observed in ChIP-qPCR. Our data suggest that the inhibition of MEF2s by C/EBPα plays a role in the development of CEBPA-IGH-positive ALL and that both isoforms work co-operatively to achieve it.
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Affiliation(s)
- Koya Odaira
- Department of Integrated Health Sciences, Division of Cellular and Genetic Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takahiko Yasuda
- Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - Kentaro Okada
- Department of Integrated Health Sciences, Division of Cellular and Genetic Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takuya Shimooka
- Department of Integrated Health Sciences, Division of Cellular and Genetic Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yukino Kojima
- Department of Integrated Health Sciences, Division of Cellular and Genetic Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Mina Noura
- Department of Integrated Health Sciences, Division of Cellular and Genetic Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Shogo Tamura
- Department of Integrated Health Sciences, Division of Cellular and Genetic Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Shingo Kurahashi
- Division of Hematology and Oncology, Toyohashi Municipal Hospital, Toyohashi, Japan
| | - Eisuke Iwamoto
- Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - Masashi Sanada
- Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - Itaru Matsumura
- Department of Hematology and Rheumatology, Kindai University School of Medicine, Osaka, Japan
| | - Yasushi Miyazaki
- Department of Hematology, Atomic Bomb Disease and Hibakusha Medicine Unit, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Tetsuhito Kojima
- Department of Integrated Health Sciences, Division of Cellular and Genetic Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Aichi Health Promotion Foundation, Nagoya, Japan
| | - Hitoshi Kiyoi
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Shinobu Tsuzuki
- Department of Biochemistry, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Fumihiko Hayakawa
- Department of Integrated Health Sciences, Division of Cellular and Genetic Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
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5
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Liu M, Gan H, Lin Y, Lin R, Xue M, Zhang T, Cheng ZJ, Sun B. Prevalence and Disability-Adjusted Life Year Rates of Asthma in China: Findings from the GBD Study 2019 of the G20. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:14663. [PMID: 36429381 PMCID: PMC9690014 DOI: 10.3390/ijerph192214663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/22/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND The credible materials about the burden of asthma in China when compared to other countries in the group of twenty (G20) remain unavailable. OBJECTIVES AND DESIGN Following the popular analysis strategy used in the Global Burden of Disease Study, the age-, sex-, country-specific prevalence, and disability-adjusted life years (DALYs) of asthma in China were analyzed. Meanwhile, the comparison in trends between China and other countries in the G20 was also evaluated. RESULTS In 2019, asthma was the 8th leading cause of the DALYs' burden of 369 diseases in China. From 1990 to 2019, the age-standardized prevalence and DALY rates of asthma in China decreased by 14% and 51%, respectively; further, the decline rate of DALYs was much higher than the global average (-51%: -43%). It is worth noting that the overall population age-standardized DALYs rate of asthma in China was the lowest in the G20 during 2019 (102.81, 95% UI: (72.30,147.42)/100,000). Moreover, the age-standardized asthma prevalence rate peaks in both childhood (178.14, 95% UI: (90.50, 329.01)/100,000) and the elderly (541.80, 95% UI: (397.79, 679.92)/100,000). Moreover, throughout the study, subjects in the 5 to 9 years old interval were a constant focus of our attention. CONCLUSIONS The disease burden of asthma has varied greatly by gender and age over the past 30 years. In contrast to the increasing burden in most other G20 countries, the age-standardized prevalence rate of asthma shows a significant decreasing trend in China, however, the age-standardized DALYs rate shows a fluctuating change, and has even shown a rebound trend in recent years.
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Affiliation(s)
- Mingtao Liu
- Department of Allergy and Clinical Immunology, Department of Laboratory, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China
| | - Hui Gan
- Department of Allergy and Clinical Immunology, Department of Laboratory, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China
| | - Yilu Lin
- School of Social Sciences, Main Campus, Universiti Sains Malaysia, Gelugor 11800, Penang, Malaysia
| | - Runpei Lin
- Department of Allergy and Clinical Immunology, Department of Laboratory, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China
| | - Mingshan Xue
- Department of Allergy and Clinical Immunology, Department of Laboratory, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China
- Guangzhou Laboratory, Guangzhou 510005, China
- Guangzhou Eighth People’s Hospital, Guangzhou Medical University, Guangzhou 510440, China
| | - Teng Zhang
- Faculty of Health Sciences, University of Macau, Taipa, Macau 510060, China
| | - Zhangkai J. Cheng
- Department of Allergy and Clinical Immunology, Department of Laboratory, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China
- Guangzhou Laboratory, Guangzhou 510005, China
| | - Baoqing Sun
- Department of Allergy and Clinical Immunology, Department of Laboratory, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China
- Guangzhou Laboratory, Guangzhou 510005, China
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Jia Z, Gu Z. PAX5 alterations in B-cell acute lymphoblastic leukemia. Front Oncol 2022; 12:1023606. [PMID: 36387144 PMCID: PMC9640836 DOI: 10.3389/fonc.2022.1023606] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 10/13/2022] [Indexed: 12/01/2022] Open
Abstract
PAX5, a master regulator of B cell development and maintenance, is one of the most common targets of genetic alterations in B-cell acute lymphoblastic leukemia (B-ALL). PAX5 alterations consist of copy number variations (whole gene, partial, or intragenic), translocations, and point mutations, with distinct distribution across B-ALL subtypes. The multifaceted functional impacts such as haploinsufficiency and gain-of-function of PAX5 depending on specific variants have been described, thereby the connection between the blockage of B cell development and the malignant transformation of normal B cells has been established. In this review, we provide the recent advances in understanding the function of PAX5 in orchestrating the development of both normal and malignant B cells over the past decade, with a focus on the PAX5 alterations shown as the initiating or driver events in B-ALL. Recent large-scale genomic analyses of B-ALL have identified multiple novel subtypes driven by PAX5 genetic lesions, such as the one defined by a distinct gene expression profile and PAX5 P80R mutation, which is an exemplar leukemia entity driven by a missense mutation. Although altered PAX5 is shared as a driver in B-ALL, disparate disease phenotypes and clinical outcomes among the patients indicate further heterogeneity of the underlying mechanisms and disturbed gene regulation networks along the disease development. In-depth mechanistic studies in human B-ALL and animal models have demonstrated high penetrance of PAX5 variants alone or concomitant with other genetic lesions in driving B-cell malignancy, indicating the altered PAX5 and deregulated genes may serve as potential therapeutic targets in certain B-ALL cases.
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Affiliation(s)
- Zhilian Jia
- Department of Computational and Quantitative Medicine, Beckman Research Institute of City of Hope, Duarte, CA, United States
- Department of Systems Biology, Beckman Research Institute of City of Hope, Duarte, CA, United States
| | - Zhaohui Gu
- Department of Computational and Quantitative Medicine, Beckman Research Institute of City of Hope, Duarte, CA, United States
- Department of Systems Biology, Beckman Research Institute of City of Hope, Duarte, CA, United States
- *Correspondence: Zhaohui Gu,
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Mu D, Long S, Guo L, Liu W. High Expression of VAV Gene Family Predicts Poor Prognosis of Acute Myeloid Leukemia. Technol Cancer Res Treat 2021; 20:15330338211065877. [PMID: 34894858 PMCID: PMC8679409 DOI: 10.1177/15330338211065877] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Objectives: VAV family genes (VAV1, VAV2, and
VAV3) are associated with prognosis in various cancers;
however, they have not been evaluated in acute myeloid leukemia (AML). In this
study, the prognostic value of VAV expression in AML was evaluated by a
single-center study in combination with bioinformatics analyses.
Methods: The expression and prognostic value of VAVs in
patients with AML were investigated using various databases, including GEPIA,
CCLE, EMBL-EBI, UALCAN, cBioPortal, STRING, and DAVID. Blood samples from 35
patients with AML (non-M3 subtype) and 13 benigh individuals were collected at
our center. VAV expression levels were detected by real-time quantitative PCR
(RT-qPCR) and western blotting. Clinical data were derived from medical records.
Results: Based on data from multiple databases, the expression
levels of VAV1, VAV2, and VAV3 were significantly higher in AML than in control
tissues (P < 0.05). RT-qPCR and western blotting results
showed that VAV expression in mRNA and protein levels were
higher in patients with AML that in the control group (P <
0.05). Complete remission rates were lower and risks were higher in patients
with AML with high VAV1 expression than with low
VAV1 expression (P < 0.05). High levels
of VAV2, VAV3, and VAV1 were related to a poor overall survival, and this
relationship was significant for VAV1 (P < 0.05). High
expression levels of genes correlated with VAV1, such as
SIPA1, SH2D3C, and HMHA1
were also related to a poor prognosis in AML. Functional and pathways enrichment
analyses indicated that the contribution of the VAV family to AML may be
mediated by the NF-κB, cAMP, and other pathways. Conclusion: VAVs
were highly expressed in AML. In particular, VAV1 has prognostic value and is a
promising therapeutic target for AML.
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Affiliation(s)
- Dan Mu
- 556508Department of Pediatrics Hematology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, China.,556508Children Hematological Oncology and Birth Defects Laboratory, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Sili Long
- 556508Department of Pediatrics Hematology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, China.,556508Children Hematological Oncology and Birth Defects Laboratory, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, China.,Sichuan Clinical Research Center for Birth Defects, Luzhou, Sichuan, 646000, China
| | - Ling Guo
- 556508Department of Pediatrics Hematology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, China.,556508Children Hematological Oncology and Birth Defects Laboratory, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, China.,Sichuan Clinical Research Center for Birth Defects, Luzhou, Sichuan, 646000, China
| | - Wenjun Liu
- 556508Department of Pediatrics Hematology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, China.,556508Children Hematological Oncology and Birth Defects Laboratory, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, China.,Sichuan Clinical Research Center for Birth Defects, Luzhou, Sichuan, 646000, China
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8
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Kurata M, Onishi I, Takahara T, Yamazaki Y, Ishibashi S, Goitsuka R, Kitamura D, Takita J, Hayashi Y, Largaesapda DA, Kitagawa M, Nakamura T. C/EBPβ induces B-cell acute lymphoblastic leukemia and cooperates with BLNK mutations. Cancer Sci 2021; 112:4920-4930. [PMID: 34653294 PMCID: PMC8645713 DOI: 10.1111/cas.15164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 09/30/2021] [Accepted: 10/11/2021] [Indexed: 11/30/2022] Open
Abstract
BLNK (BASH/SLP‐65) encodes an adaptor protein that plays an important role in B‐cell receptor (BCR) signaling. Loss‐of‐function mutations in this gene are observed in human pre‐B acute lymphoblastic leukemia (ALL), and a subset of Blnk knock‐out (KO) mice develop pre‐B‐ALL. To understand the molecular mechanism of the Blnk mutation‐associated pre‐B‐ALL development, retroviral tagging was applied to KO mice using the Moloney murine leukemia virus (MoMLV). The Blnk mutation that significantly accelerated the onset of MoMLV‐induced leukemia and increased the incidence of pre‐B‐ALL Cebpb was identified as a frequent site of retroviral integration, suggesting that its upregulation cooperates with Blnk mutations. Transgenic expression of the liver‐enriched activator protein (LAP) isoform of Cebpb reduced the number of mature B‐lymphocytes in the bone marrow and inhibited differentiation at the pre‐BI stage. Furthermore, LAP expression significantly accelerated leukemogenesis in Blnk KO mice and alone acted as a B‐cell oncogene. Furthermore, an inverse relationship between BLNK and C/EBPβ expression was also noted in human pre‐B‐ALL cases, and the high level of CEBPB expression was associated with short survival periods in patients with BLNK‐downregulated pre‐B‐ALL. These results indicate the association between the C/EBPβ transcriptional network and BCR signaling in pre‐B‐ALL development and leukemogenesis. This study gives insight into ALL progression and suggests that the BCR/C/EBPβ pathway can be a therapeutic target.
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Affiliation(s)
- Morito Kurata
- Division of Carcinogenesis, The Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, Japan.,Department of Comprehensive Pathology, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Iichiro Onishi
- Division of Carcinogenesis, The Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, Japan.,Department of Comprehensive Pathology, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tomoko Takahara
- Division of Carcinogenesis, The Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yukari Yamazaki
- Division of Carcinogenesis, The Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Sachiko Ishibashi
- Department of Comprehensive Pathology, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Ryo Goitsuka
- Research Institute for Biomedical Sciences, Tokyo University of Science, Noda, Japan
| | - Daisuke Kitamura
- Research Institute for Biomedical Sciences, Tokyo University of Science, Noda, Japan
| | - Junko Takita
- Department of Pediatrics, Faculty of Medicine, University of Tokyo, Tokyo, Japan
| | - Yasuhide Hayashi
- Department of Hematology/Oncology, Gunma Children's Medical Center, Shibukawa, Japan
| | - David A Largaesapda
- Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Masanobu Kitagawa
- Department of Comprehensive Pathology, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takuro Nakamura
- Division of Carcinogenesis, The Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, Japan
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9
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Le Y. Screening and identification of key candidate genes and pathways in myelodysplastic syndrome by bioinformatic analysis. PeerJ 2019; 7:e8162. [PMID: 31803541 PMCID: PMC6886488 DOI: 10.7717/peerj.8162] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 11/04/2019] [Indexed: 12/25/2022] Open
Abstract
Myelodysplastic syndrome (MDS) is a heterogeneous hematologic malignancy derived from hematopoietic stem cells and the molecular mechanism of MDS remains unclear. This study aimed to elucidate potential markers of diagnosis and prognosis of MDS. The gene expression profiles GSE19429 and GSE58831 were obtained and downloaded from the Gene Expression Omnibus (GEO) database. The differentially expressed genes (DEGs) in MDS were screened using GEO2R and overlapped DEGs were obtained with Venn Diagrams. Then, Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway functional enrichment analyses, protein–protein interaction network establishment and survival analyses were performed. Functional enrichment analysis indicated that these DEGs were significantly enriched in the interferon signaling pathway, immune response, hematopoietic cell lineage and the FOXO signaling pathway. Four hub genes and four significant modules including 25 module genes were obtained via Cytoscape MCODE. Survival analysis showed that the overall survival of MDS patients having BLNK, IRF4, IFITM1, IFIT1, ISG20, IFI44L alterations were worse than that without alterations. In conclusion, the identification of these genes and pathways helps understand the underlying molecular mechanisms of MDS and provides candidate targets for the diagnosis and prognosis of MDS.
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Affiliation(s)
- Ying Le
- Department of Hematology, Maoming People's Hospital, Maoming, Guangdong, China
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10
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Yamamoto H, Hayakawa F, Yasuda T, Odaira K, Minamikawa Y, Tange N, Hirano D, Kojima Y, Morishita T, Tsuzuki S, Naoe T, Kiyoi H. ZNF384-fusion proteins have high affinity for the transcriptional coactivator EP300 and aberrant transcriptional activities. FEBS Lett 2019; 593:2151-2161. [PMID: 31234226 DOI: 10.1002/1873-3468.13506] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 06/12/2019] [Accepted: 06/14/2019] [Indexed: 11/07/2022]
Abstract
Zinc-finger protein 384 (ZNF384) fusion (Z-fusion) genes have recently been identified as recurrent fusion genes in B-cell precursor acute lymphoblastic leukaemia (BCP-ALL) and have been detected in 7-17% of Philadelphia chromosome-negative BCP-ALL cases. We selected SALL4 and ID2 as potential Z-fusion-specific transcriptional targets that might lead to the differentiation disorder of Z-fusion-positive ALL. The introduction of EP300-ZNF384 and SYNRG-ZNF384 induced the expression of these genes. Z-fusion proteins exhibited stronger transcriptional activities on the promoter or enhancer region of these genes than Wild-Z. Furthermore, GST pull-down assay revealed that Z-fusion proteins associated more strongly with EP300 than Wild-Z. Coexpression of EP300 specifically enhanced the transcriptional activities of Z-fusion proteins. We propose the increased EP300 binding of Z-fusion proteins as a mechanism for their increased transcriptional activities.
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Affiliation(s)
- Hideyuki Yamamoto
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Japan
| | - Fumihiko Hayakawa
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Japan.,Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Japan
| | - Takahiko Yasuda
- Clinical Research Center, Nagoya Medical Center, National Hospital Organization, Nagoya, Japan
| | - Koya Odaira
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Japan
| | - Yuka Minamikawa
- Department of Analytical Neurobiology, Faculty of Pharmacy, Meijo University, Nagoya, Japan
| | - Naoyuki Tange
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Japan
| | - Daiki Hirano
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Japan
| | - Yuki Kojima
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Japan
| | - Takanobu Morishita
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Japan
| | - Shinobu Tsuzuki
- Department of Biochemistry, School of Medicine, Aichi Medical University, Japan
| | - Tomoki Naoe
- Nagoya Medical Center, National Hospital Organization, Nagoya, Japan
| | - Hitoshi Kiyoi
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Japan
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11
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Zia S, Shahid R. Mutagenic players in ALL progression and their associated signaling pathways. Cancer Genet 2019; 233-234:7-20. [DOI: 10.1016/j.cancergen.2019.02.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 02/10/2019] [Accepted: 02/25/2019] [Indexed: 12/19/2022]
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12
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Xiao B, Li J, Zhou M, Li X, Huang X, Hang J, Sun Z, Li L. [Structure and function of B-cell linker and its role in the development of B cell-related diseases]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2019; 39:253-256. [PMID: 30890517 DOI: 10.12122/j.issn.1673-4254.2019.02.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
B cell linker (BLNK) is a key linker protein of B cell receptor (BCR) signaling pathway. BLNK participates in the regulation of PLC-γactivity and the activation of Ras pathway through its typical structure and interaction network with other proteins, and is thus widely involved in the regulation of B cell proliferation, differentiation, apoptosis and signal transduction. Furthermore, it is closely related to anaphylactic diseases, multiple sclerosis, chromosomal aneuploidy, aneuglobulinemia, B lymphocytic leukemia and lymphoma. Herein we review the structure and biological function of BLNK and its role in B cell-related diseases. BLNK can cooperate with a series of effective proteins to activate BCR signaling pathway, thereby regulating the development, maturation and function of B cells. The functional mutation of BLNK can destroy the homeostasis of B cells and affect the development and maturation of B cells, which leads to the occurrence of B cell related diseases. A comprehensive understanding of the biological functions of BLNK not only provides insights into the pathogenesis of B cell-related diseases, but also inspires new ideas and helps to find breakthroughs for the treatment of these diseases with BLNK as the therapeutic target.
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Affiliation(s)
- Bin Xiao
- Department of Laboratory Medicine, General Hospital of Southern Theatre Command of PLA, Guangzhou 510010, China
| | - Jiaying Li
- Department of Clinical Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Mengsi Zhou
- Department of Clinical Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xiaoqing Li
- Department of Laboratory Medicine, General Hospital of Southern Theatre Command of PLA, Guangzhou 510010, China
| | - Xiaoyan Huang
- Department of Laboratory Medicine, General Hospital of Southern Theatre Command of PLA, Guangzhou 510010, China
| | - Jianfeng Hang
- Department of Laboratory Medicine, General Hospital of Southern Theatre Command of PLA, Guangzhou 510010, China
| | - Zhaohui Sun
- Department of Laboratory Medicine, General Hospital of Southern Theatre Command of PLA, Guangzhou 510010, China
| | - Linhai Li
- Department of Laboratory Medicine, General Hospital of Southern Theatre Command of PLA, Guangzhou 510010, China
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13
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Castillo D, Galvez JM, Herrera LJ, Rojas F, Valenzuela O, Caba O, Prados J, Rojas I. Leukemia multiclass assessment and classification from Microarray and RNA-seq technologies integration at gene expression level. PLoS One 2019; 14:e0212127. [PMID: 30753220 PMCID: PMC6372182 DOI: 10.1371/journal.pone.0212127] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 01/27/2019] [Indexed: 12/13/2022] Open
Abstract
In more recent years, a significant increase in the number of available biological experiments has taken place due to the widespread use of massive sequencing data. Furthermore, the continuous developments in the machine learning and in the high performance computing areas, are allowing a faster and more efficient analysis and processing of this type of data. However, biological information about a certain disease is normally widespread due to the use of different sequencing technologies and different manufacturers, in different experiments along the years around the world. Thus, nowadays it is of paramount importance to attain a correct integration of biologically-related data in order to achieve genuine benefits from them. For this purpose, this work presents an integration of multiple Microarray and RNA-seq platforms, which has led to the design of a multiclass study by collecting samples from the main four types of leukemia, quantified at gene expression. Subsequently, in order to find a set of differentially expressed genes with the highest discernment capability among different types of leukemia, an innovative parameter referred to as coverage is presented here. This parameter allows assessing the number of different pathologies that a certain gen is able to discern. It has been evaluated together with other widely known parameters under assessment of an ANOVA statistical test which corroborated its filtering power when the identified genes are subjected to a machine learning process at multiclass level. The optimal tuning of gene extraction evaluated parameters by means of this statistical test led to the selection of 42 highly relevant expressed genes. By the use of minimum-Redundancy Maximum-Relevance (mRMR) feature selection algorithm, these genes were reordered and assessed under the operation of four different classification techniques. Outstanding results were achieved by taking exclusively the first ten genes of the ranking into consideration. Finally, specific literature was consulted on this last subset of genes, revealing the occurrence of practically all of them with biological processes related to leukemia. At sight of these results, this study underlines the relevance of considering a new parameter which facilitates the identification of highly valid expressed genes for simultaneously discerning multiple types of leukemia.
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Affiliation(s)
- Daniel Castillo
- Department of Computer Architecture and Computer Technology, University of Granada, Granada, Spain
| | - Juan Manuel Galvez
- Department of Computer Architecture and Computer Technology, University of Granada, Granada, Spain
| | - Luis J. Herrera
- Department of Computer Architecture and Computer Technology, University of Granada, Granada, Spain
| | - Fernando Rojas
- Department of Computer Architecture and Computer Technology, University of Granada, Granada, Spain
| | - Olga Valenzuela
- Department of Applied Mathematics, University of Granada, Granada, Spain
| | - Octavio Caba
- Institute of Biopathology and Regenerative Medicine (IBIMER), Center of Biomedical Research (CIBM), University of Granada, Granada, Spain
| | - Jose Prados
- Institute of Biopathology and Regenerative Medicine (IBIMER), Center of Biomedical Research (CIBM), University of Granada, Granada, Spain
| | - Ignacio Rojas
- Department of Computer Architecture and Computer Technology, University of Granada, Granada, Spain
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14
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Chromosomal translocation-mediated evasion from miRNA induces strong MEF2D fusion protein expression, causing inhibition of PAX5 transcriptional activity. Oncogene 2018; 38:2263-2274. [PMID: 30478446 DOI: 10.1038/s41388-018-0573-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 08/29/2018] [Accepted: 10/11/2018] [Indexed: 12/22/2022]
Abstract
MEF2D fusion genes are newly discovered recurrent gene abnormalities that are detected in approximately 5% of acute lymphoblastic leukemia cases. We previously demonstrated that the vector-driven expression of MEF2D fusion proteins was markedly stronger than that of wild-type MEF2D; however, the underlying mechanisms and significance of this expression have yet to be clarified. We herein showed that the strong expression of MEF2D fusion proteins was caused by the loss of the target site of miRNA due to gene translocation. We identified the target region of miRNA located in the coding region and selected miR-122 as a candidate of the responsible miRNA. Mutations at a putative binding site of miR-122 increased MEF2D expression, while the transfection of its miRNA mimic reduced the expression of wild-type MEF2D, but not MEF2D fusion proteins. We also found that MEF2D fusion proteins inhibited the transcriptional activity of PAX5, a B-cell differentiation regulator in a manner that depended on fusion-specific strong expression and an association with histone deacetylase 4, which may lead to the differentiation disorders of B cells. Our results provide novel insights into the mechanisms underlying leukemia development by MEF2D fusion genes and the involvement of the deregulation of miRNA-mediated repression in cancer development.
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15
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The pathogenic role of MEF2D-SS18 fusion gene in B-cell acute lymphoblastic leukemia. Biochem Biophys Res Commun 2018; 496:1331-1336. [DOI: 10.1016/j.bbrc.2018.02.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 02/02/2018] [Indexed: 12/25/2022]
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16
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Ribera J, Zamora L, Morgades M, Mallo M, Solanes N, Batlle M, Vives S, Granada I, Juncà J, Malinverni R, Genescà E, Guàrdia R, Mercadal S, Escoda L, Martinez-Lopez J, Tormo M, Esteve J, Pratcorona M, Martinez-Losada C, Solé F, Feliu E, Ribera JM. Copy number profiling of adult relapsed B-cell precursor acute lymphoblastic leukemia reveals potential leukemia progression mechanisms. Genes Chromosomes Cancer 2017; 56:810-820. [PMID: 28758283 DOI: 10.1002/gcc.22486] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 07/22/2017] [Accepted: 07/22/2017] [Indexed: 12/11/2022] Open
Abstract
The outcome of relapsed adult acute lymphoblastic leukemia (ALL) remains dismal despite new therapeutic approaches. Previous studies analyzing relapse samples have shown a high degree of heterogeneity regarding gene alterations without an evident relapse signature. Bone marrow or peripheral blood samples from 31 adult B-cell precursor ALL patients at first relapse, and 21 paired diagnostic samples were analyzed by multiplex ligation probe-dependent amplification (MLPA). Nineteen paired diagnostic and relapse samples of these 21 patients were also analyzed by SNP arrays. A trend to acquire homozygous CDKN2A/B deletions and a significant increase in the number of copy number alterations (CNA) was observed from diagnosis to first relapse. Evolution from an ancestral clone was the main pattern of clonal evolution. Relapse samples were extremely heterogeneous regarding CNA frequencies. However, CDKN2A/B, PAX5, ETV6, ATM, IKZF1, VPREB1, and TP53 deletions and duplications of 1q, 8q, 17q, 21, X/Y PAR1, and Xp were frequently detected at relapse. Duplications of genes involved in cell proliferation, drug resistance and stem cell homeostasis regulation, as well as deletions of KDM6A and STAG2 genes emerged as specific alterations at relapse. Genomics of relapsed adult B-cell precursor ALL is highly heterogeneous, although some recurrent lesions involved in essential pathways deregulation were frequently observed. Selective and simultaneous targeting of these deregulated pathways may improve the results of current salvage therapies.
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Affiliation(s)
- Jordi Ribera
- Josep Carreras Leukemia Research Institute (IJC), Universitat Autònoma de Barcelona, Badalona, Spain
| | - Lurdes Zamora
- Josep Carreras Leukemia Research Institute (IJC), Universitat Autònoma de Barcelona, Badalona, Spain
- Catalan Institute of Oncology-Germans Trias i Pujol, Badalona, Spain
| | - Mireia Morgades
- Josep Carreras Leukemia Research Institute (IJC), Universitat Autònoma de Barcelona, Badalona, Spain
- Catalan Institute of Oncology-Germans Trias i Pujol, Badalona, Spain
| | - Mar Mallo
- Josep Carreras Leukemia Research Institute (IJC), Universitat Autònoma de Barcelona, Badalona, Spain
| | - Neus Solanes
- Josep Carreras Leukemia Research Institute (IJC), Universitat Autònoma de Barcelona, Badalona, Spain
| | - Montserrat Batlle
- Josep Carreras Leukemia Research Institute (IJC), Universitat Autònoma de Barcelona, Badalona, Spain
- Catalan Institute of Oncology-Germans Trias i Pujol, Badalona, Spain
| | - Susana Vives
- Josep Carreras Leukemia Research Institute (IJC), Universitat Autònoma de Barcelona, Badalona, Spain
- Catalan Institute of Oncology-Germans Trias i Pujol, Badalona, Spain
| | - Isabel Granada
- Josep Carreras Leukemia Research Institute (IJC), Universitat Autònoma de Barcelona, Badalona, Spain
- Catalan Institute of Oncology-Germans Trias i Pujol, Badalona, Spain
| | - Jordi Juncà
- Josep Carreras Leukemia Research Institute (IJC), Universitat Autònoma de Barcelona, Badalona, Spain
- Catalan Institute of Oncology-Germans Trias i Pujol, Badalona, Spain
| | - Roberto Malinverni
- Josep Carreras Leukemia Research Institute (IJC), Universitat Autònoma de Barcelona, Badalona, Spain
| | - Eulàlia Genescà
- Josep Carreras Leukemia Research Institute (IJC), Universitat Autònoma de Barcelona, Badalona, Spain
| | - Ramon Guàrdia
- Catalan Institute of Oncology-Josep Trueta, Girona, Spain
| | - Santiago Mercadal
- Catalan Institute of Oncology-Duran i Reynals, L'Hospitalet de Llobregat, Spain
| | - Lourdes Escoda
- Catalan Institute of Oncology-Joan XXIII, Tarragona, Spain
| | | | | | - Jordi Esteve
- Josep Carreras Leukemia Research Institute (IJC), Universitat Autònoma de Barcelona, Badalona, Spain
- Clinic Hospital, Barcelona, Spain
| | - Marta Pratcorona
- Josep Carreras Leukemia Research Institute (IJC), Universitat Autònoma de Barcelona, Badalona, Spain
- Sant Pau Hospital, Barcelona, Spain
| | | | - Francesc Solé
- Josep Carreras Leukemia Research Institute (IJC), Universitat Autònoma de Barcelona, Badalona, Spain
| | - Evarist Feliu
- Josep Carreras Leukemia Research Institute (IJC), Universitat Autònoma de Barcelona, Badalona, Spain
- Catalan Institute of Oncology-Germans Trias i Pujol, Badalona, Spain
| | - Josep-Maria Ribera
- Josep Carreras Leukemia Research Institute (IJC), Universitat Autònoma de Barcelona, Badalona, Spain
- Catalan Institute of Oncology-Germans Trias i Pujol, Badalona, Spain
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