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Ma Q, Zhao M, Long B, Li H. Super-enhancer-associated gene CAPG promotes AML progression. Commun Biol 2023; 6:622. [PMID: 37296281 PMCID: PMC10256737 DOI: 10.1038/s42003-023-04973-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
Acute myeloid leukemia is the most common acute leukemia in adults, the barrier of refractory and drug resistance has yet to be conquered in the clinical. Abnormal gene expression and epigenetic changes play an important role in pathogenesis and treatment. A super-enhancer is an epigenetic modifier that promotes pro-tumor genes and drug resistance by activating oncogene transcription. Multi-omics integrative analysis identifies the super-enhancer-associated gene CAPG and its high expression level was correlated with poor prognosis in AML. CAPG is a cytoskeleton protein but has an unclear function in AML. Here we show the molecular function of CAPG in regulating NF-κB signaling pathway by proteomic and epigenomic analysis. Knockdown of Capg in the AML murine model resulted in exhausted AML cells and prolonged survival of AML mice. In conclusion, SEs-associated gene CAPG can contributes to AML progression through NF-κB.
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Affiliation(s)
- Qian Ma
- Department of Clinical Laboratory, Peking University First Hospital, Beijing, China
| | - Minyi Zhao
- Department of Hematology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Bing Long
- Department of Hematology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Haixia Li
- Department of Clinical Laboratory, Peking University First Hospital, Beijing, China.
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2
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Huang CJ, Lyu X, Kang J. The molecular characteristics and functional roles of microspherule protein 1 (MCRS1) in gene expression, cell proliferation, and organismic development. Cell Cycle 2023; 22:619-632. [PMID: 36384428 PMCID: PMC9980701 DOI: 10.1080/15384101.2022.2145816] [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: 06/01/2022] [Revised: 09/21/2022] [Accepted: 11/04/2022] [Indexed: 11/18/2022] Open
Abstract
Accurate spatial and temporal regulation of cell cycle progression is essential for cell proliferation and organismic development. This review demonstrates the role of microspherule protein 58kD, commonly known as MCRS1, as a key cell cycle regulator of higher eukaryotic organisms. We discuss the isoforms and functional domains of MCRS1 as well as their subcellular localization at specific stages of the cell cycle. These molecular characteristics reveal MCRS1's dynamic regulatory role in gene expression, genome stability, cell proliferation, and organismic development. Furthermore, we discuss the molecular details of its seemingly opposite, tumor-suppressive or tumor-promoting, role in different types of cancer.
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Affiliation(s)
| | - Xiaoai Lyu
- Arts and Science, New York University Shanghai, Shanghai, China
- Graduate School of Arts and Science, New York University, New York, USA
| | - Jungseog Kang
- Arts and Science, New York University Shanghai, Shanghai, China
- NYU-ECNU Center for Computational Chemistry, New York University Shanghai, Shanghai, China
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Sheikh BN, Guhathakurta S, Akhtar A. The non-specific lethal (NSL) complex at the crossroads of transcriptional control and cellular homeostasis. EMBO Rep 2019; 20:e47630. [PMID: 31267707 PMCID: PMC6607013 DOI: 10.15252/embr.201847630] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 03/10/2019] [Accepted: 03/19/2019] [Indexed: 12/14/2022] Open
Abstract
The functionality of chromatin is tightly regulated by post-translational modifications that modulate transcriptional output from target loci. Among the post-translational modifications of chromatin, reversible ε-lysine acetylation of histone proteins is prominent at transcriptionally active genes. Lysine acetylation is catalyzed by lysine acetyltransferases (KATs), which utilize the central cellular metabolite acetyl-CoA as their substrate. Among the KATs that mediate lysine acetylation, males absent on the first (MOF/KAT8) is particularly notable for its ability to acetylate histone 4 lysine 16 (H4K16ac), a modification that decompacts chromatin structure. MOF and its non-specific lethal (NSL) complex members have been shown to localize to gene promoters and enhancers in the nucleus, as well as to microtubules and mitochondria to regulate key cellular processes. Highlighting their importance, mutations or deregulation of NSL complex members has been reported in both human neurodevelopmental disorders and cancer. Based on insight gained from studies in human, mouse, and Drosophila model systems, this review discusses the role of NSL-mediated lysine acetylation in a myriad of cellular functions in both health and disease. Through these studies, the importance of the NSL complex in regulating core transcriptional and signaling networks required for normal development and cellular homeostasis is beginning to emerge.
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Affiliation(s)
- Bilal N Sheikh
- Max Planck Institute for Immunobiology and EpigeneticsFreiburg im BreisgauGermany
| | - Sukanya Guhathakurta
- Max Planck Institute for Immunobiology and EpigeneticsFreiburg im BreisgauGermany
- Faculty of BiologyAlbert Ludwig University of FreiburgFreiburgGermany
| | - Asifa Akhtar
- Max Planck Institute for Immunobiology and EpigeneticsFreiburg im BreisgauGermany
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4
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Knockdown of MSP58 inhibits the proliferation and metastasis in human renal cell carcinoma cells. Biomed Pharmacother 2017; 91:54-59. [DOI: 10.1016/j.biopha.2017.04.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2017] [Revised: 04/05/2017] [Accepted: 04/10/2017] [Indexed: 01/12/2023] Open
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Lee SH, Lee MS, Choi TI, Hong H, Seo JY, Kim CH, Kim J. MCRS1 associates with cytoplasmic dynein and mediates pericentrosomal material recruitment. Sci Rep 2016; 6:27284. [PMID: 27263857 PMCID: PMC4893664 DOI: 10.1038/srep27284] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 05/13/2016] [Indexed: 12/20/2022] Open
Abstract
MCRS1 is involved in multiple cellular activities, including mitotic spindle assembly, mTOR signaling and tumorigenesis. Although MCRS1 has been reported to bind to the dynein regulator NDE1, a functional interaction between MCRS1 and cytoplasmic dynein remains unaddressed. Here, we demonstrate that MCRS1 is required for dynein-dependent cargo transport to the centrosome and also plays a role in primary cilium formation. MCRS1 localized to centriolar satellites. Knockdown of MCRS1 resulted in a dispersion of centriolar satellites whose establishment depends on cytoplasmic dynein. By contrast, NDE1 was not necessary for the proper distribution of centriolar satellites, indicating a functional distinction between MCRS1 and NDE1. Unlike NDE1, MCRS1 played a positive role for the initiation of ciliogenesis, possibly through its interaction with TTBK2. Zebrafish with homozygous mcrs1 mutants exhibited a reduction in the size of the brain and the eye due to excessive apoptosis. In addition, mcrs1 mutants failed to develop distinct layers in the retina, and showed a defect in melatonin-induced aggregation of melanosomes in melanophores. These phenotypes are reminiscent of zebrafish dynein mutants. Reduced ciliogenesis was also apparent in the olfactory placode of mcrs1 mutants. Collectively, our findings identify MCRS1 as a dynein-interacting protein critical for centriolar satellite formation and ciliogenesis.
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Affiliation(s)
- Si-Hyung Lee
- Graduate School of Medical Science and Engineering, KAIST, Daejeon 34141, Korea
| | - Mi-Sun Lee
- Department of Biology, Chungnam National University, Daejeon 34134, Korea
| | - Tae-Ik Choi
- Department of Biology, Chungnam National University, Daejeon 34134, Korea
| | - Hyowon Hong
- Graduate School of Medical Science and Engineering, KAIST, Daejeon 34141, Korea
| | - Jun-Young Seo
- Severance Biomedical Science Institute, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Cheol-Hee Kim
- Department of Biology, Chungnam National University, Daejeon 34134, Korea
| | - Joon Kim
- Graduate School of Medical Science and Engineering, KAIST, Daejeon 34141, Korea
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Li C, Chen M, Zhao P, Ayana DA, Wang L, Jiang Y. Expression of MCRS1 and MCRS2 and their correlation with serum carcinoembryonic antigen in colorectal cancer. Exp Ther Med 2016; 12:589-596. [PMID: 27446248 PMCID: PMC4950148 DOI: 10.3892/etm.2016.3424] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 03/03/2016] [Indexed: 12/16/2022] Open
Abstract
Cancer-associated genes serve a crucial role in carcinogenesis. The present study aimed to investigate the mRNA expression levels of microspherule protein 1 (MCRS1) and MCRS2 in colorectal cancer (CRC) and their association with clinical variables. The mRNA expression levels of MCRS1 and MCRS2 were assessed by semi-quantitative reverse transcription polymerase chain reaction in the tumor and corresponding non-tumor tissues of 54 newly-diagnosed CRC patients, as well as in the normal colonic mucosa tissue of 19 age/gender-matched healthy controls. Immunofluorescence was also employed to identify the expression of MCRS1 in CRC tissues, while the concentration of serum carcinoembryonic antigen (CEA) was determined by an enzyme-linked immunoassay. The results identified a negative correlation between MCRS1 and MCRS2 expression levels (r=-0.3018, P=0.0266). MCRS1 mRNA expression was significantly increased and MCRS2 mRNA expression was decreased in CRC tissues compared with the levels in the corresponding normal tissues (both P<0.001). An increase in MCRS1 expression and a decrease in MCRS2 expression was detected in advanced stage when compared with early stage CRC patients. Immunofluorescence analysis revealed increased expression of MCRS1 in CRC patients. Furthermore, the expression levels of MCRS1 displayed positive correlation, whilst those of MCRS2 displayed negative correlation, with the serum CEA level in patients with CRC. The results suggest that increased MCRS1 and decreased MCRS2 expression appeared to be involved in the pathogenesis of CRC. The present study provides evidence suggesting that MCRS1 and MCRS2 may identify CRC patients at a risk of disease relapse, and thus, may be potential tools for monitoring disease activity and act as novel diagnostic markers in the treatment of CRC.
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Affiliation(s)
- Chenguang Li
- Department of Colorectal and Anal Surgery, The First Hospital, Jilin University, Changchun, Jilin 130032, P.R. China; Key Laboratory of Zoonosis Research, Ministry of Education, The First Hospital, Jilin University, Changchun, Jilin 130032, P.R. China
| | - Mingxiao Chen
- Department of Colorectal and Anal Surgery, The First Hospital, Jilin University, Changchun, Jilin 130032, P.R. China
| | - Pingwei Zhao
- Department of Colorectal and Anal Surgery, The First Hospital, Jilin University, Changchun, Jilin 130032, P.R. China
| | - Desalegn Admassu Ayana
- Department of Medical Laboratory Sciences, Haramaya University, Dire Dawa 3000, Ethiopia
| | - Lei Wang
- Department of Colorectal and Anal Surgery, The First Hospital, Jilin University, Changchun, Jilin 130032, P.R. China
| | - Yanfang Jiang
- Key Laboratory of Zoonosis Research, Ministry of Education, The First Hospital, Jilin University, Changchun, Jilin 130032, P.R. China
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Fawal MA, Brandt M, Djouder N. MCRS1 binds and couples Rheb to amino acid-dependent mTORC1 activation. Dev Cell 2015; 33:67-81. [PMID: 25816988 DOI: 10.1016/j.devcel.2015.02.010] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 12/11/2014] [Accepted: 02/10/2015] [Indexed: 12/31/2022]
Abstract
Ras homolog enriched in brain (Rheb) is critical for mechanistic target of rapamycin complex 1 (mTORC1) activation in response to growth factors and amino acids (AAs). Whereas growth factors inhibit the tuberous sclerosis complex (TSC1-TSC2), a negative Rheb regulator, the role of AAs in Rheb activation remains unknown. Here, we identify microspherule protein 1 (MCRS1) as the essential link between Rheb and mTORC1 activation. MCRS1, in an AA-dependent manner, maintains Rheb at lysosome surfaces, connecting Rheb to mTORC1. MCRS1 suppression in human cancer cells using small interference RNA or mouse embryonic fibroblasts using an inducible-Cre/Lox system reduces mTORC1 activity. MCRS1 depletion promotes Rheb/TSC2 interaction, rendering Rheb inactive and delocalizing it from lysosomes to recycling endocytic vesicles, leading to mTORC1 inactivation. These findings have important implications for signaling mechanisms in various pathologies, including diabetes mellitus and cancer.
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Affiliation(s)
- Mohamad-Ali Fawal
- Cancer Cell Biology Programme, Growth Factors, Nutrients and Cancer Group, Centro Nacional de Investigaciones Oncológicas, CNIO, 28029 Madrid, Spain
| | - Marta Brandt
- Cancer Cell Biology Programme, Growth Factors, Nutrients and Cancer Group, Centro Nacional de Investigaciones Oncológicas, CNIO, 28029 Madrid, Spain
| | - Nabil Djouder
- Cancer Cell Biology Programme, Growth Factors, Nutrients and Cancer Group, Centro Nacional de Investigaciones Oncológicas, CNIO, 28029 Madrid, Spain.
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