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Wu L, Du Y, Wang L, Zhang Y, Ren J. Inhibition of METTL3 ameliorates doxorubicin-induced cardiotoxicity through suppression of TFRC-mediated ferroptosis. Redox Biol 2024; 72:103157. [PMID: 38631119 PMCID: PMC11033199 DOI: 10.1016/j.redox.2024.103157] [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: 02/26/2024] [Revised: 03/28/2024] [Accepted: 04/10/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND Doxorubicin (DOX) is a chemotherapeutic drug, while its clinical use is greatly limited by the life-threatening cardiotoxicity. N6-methyladenosine (m6A) RNA modification participates in varieties of cellular processes. Nonetheless, it remains elusive whether m6A modification and its methyltransferase METTL3 are involved in the progression of DOX-induced cardiotoxicity (DIC). METHODS Mice were administrated with DOX (accumulative dosage of 20 mg/kg) repeatedly to establish a chronic DIC model. Cardiomyocyte-specific conditional METTL3 knockout mice were employed to evaluate the effects of altered m6A RNA modification on DIC. The effects of METTL3 on cardiomyocyte ferroptosis were also examined in response to DOX stimulation. RESULTS DOX led to increased levels in m6A modification and METTL3 expression in cardiomyocytes in a c-Jun-dependent manner. METTL3-knockout mice exhibited improved cardiac function, remodeling and injury following DOX insult. Besides, inhibition of METTL3 alleviated DOX-induced iron accumulation and ferroptosis in cardiomyocytes, whereas METTL3 overexpression exerted the opposite effects. Mechanistically, METTL3 promoted m6A modification of TFRC mRNA, a critical gene governing iron uptake, and enhanced its stability through recognition of the m6A reader protein, IGF2BP2. Moreover, pharmacological administration of a highly selective METTL3 inhibitor STM2457 effectively ameliorated DIC in mice. CONCLUSION METTL3 plays a cardinal role in the etiology of DIC by regulating cardiac iron metabolism and ferroptosis through TFRC m6A modification. Inhibition of METTL3 might be a potential therapeutic avenue for DIC.
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Affiliation(s)
- Lin Wu
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai, 200032, China; National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
| | - Yuxin Du
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai, 200032, China; National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
| | - Litao Wang
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai, 200032, China; National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
| | - Yingmei Zhang
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai, 200032, China; National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China.
| | - Jun Ren
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai, 200032, China; National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China.
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Cai H, Zhao J, Zhang Q, Wu H, Sun Y, Guo F, Zhou Y, Qin G, Xia W, Zhao Y, Liang X, Yin S, Qin Y, Li D, Wu H, Ren D. Ubiquitin ligase TRIM15 promotes the progression of pancreatic cancer via the upregulation of the IGF2BP2-TLR4 axis. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167183. [PMID: 38657551 DOI: 10.1016/j.bbadis.2024.167183] [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: 11/30/2023] [Revised: 03/17/2024] [Accepted: 04/15/2024] [Indexed: 04/26/2024]
Abstract
BACKGROUND The tripartite motif family, predominantly characterized by its E3 ubiquitin ligase activities, is involved in various cellular processes including signal transduction, apoptosis and autophagy, protein quality control, immune regulation, and carcinogenesis. Tripartite Motif Containing 15 (TRIM15) plays an important role in melanoma progression through extracellular signal-regulated kinase activation; however, data on its role in pancreatic tumors remain lacking. We previously demonstrated that TRIM15 targeted lipid synthesis and metabolism in pancreatic cancer; however, other specific regulatory mechanisms remain elusive. METHODS We used transcriptomics and proteomics, conducted a series of phenotypic experiments, and used a mouse orthotopic transplantation model to study the specific mechanism of TRIM15 in pancreatic cancer in vitro and in vivo. RESULTS TRIM15 overexpression promoted the progression of pancreatic cancer by upregulating the toll-like receptor 4. The TRIM15 binding protein, IGF2BP2, could combine with TLR4 to inhibit its mRNA degradation. Furthermore, the ubiquitin level of IGF2BP2 was positively correlated with TRIM15. CONCLUSIONS TRIM15 could ubiquitinate IGF2BP2 to enhance the function of phase separation and the maintenance of mRNA stability of TLR4. TRIM15 is a potential therapeutic target against pancreatic cancer.
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Affiliation(s)
- Hongkun Cai
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Sino-German Laboratory of Personalized Medicine for Pancreatic Cancer, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jingyuan Zhao
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Sino-German Laboratory of Personalized Medicine for Pancreatic Cancer, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Qiyue Zhang
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Sino-German Laboratory of Personalized Medicine for Pancreatic Cancer, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Heyu Wu
- Department of Operating Room, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yan Sun
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Sino-German Laboratory of Personalized Medicine for Pancreatic Cancer, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Feng Guo
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Sino-German Laboratory of Personalized Medicine for Pancreatic Cancer, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yingke Zhou
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Sino-German Laboratory of Personalized Medicine for Pancreatic Cancer, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Gengdu Qin
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Sino-German Laboratory of Personalized Medicine for Pancreatic Cancer, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Wentao Xia
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Sino-German Laboratory of Personalized Medicine for Pancreatic Cancer, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yuhan Zhao
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Sino-German Laboratory of Personalized Medicine for Pancreatic Cancer, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xueyi Liang
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Sino-German Laboratory of Personalized Medicine for Pancreatic Cancer, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Shilin Yin
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Sino-German Laboratory of Personalized Medicine for Pancreatic Cancer, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yang Qin
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Sino-German Laboratory of Personalized Medicine for Pancreatic Cancer, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Dan Li
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Heshui Wu
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Sino-German Laboratory of Personalized Medicine for Pancreatic Cancer, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Dianyun Ren
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Sino-German Laboratory of Personalized Medicine for Pancreatic Cancer, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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Nan Y, Chen M, Wu W, Huang R, Sun W, Lu Q, Gu Z, Mao X, Xu H, Wang Y. IGF2BP2 regulates the inflammation of fibroblast-like synoviocytes via GSTM5 in rheumatoid arthritis. Cell Death Discov 2024; 10:215. [PMID: 38702323 PMCID: PMC11068746 DOI: 10.1038/s41420-024-01988-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 04/19/2024] [Accepted: 04/23/2024] [Indexed: 05/06/2024] Open
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune disease with an unknown etiology. RA cannot be fully cured and requires lengthy treatment, imposing a significant burden on both individuals and society. Due to the lack of specific drugs available for treating RA, exploring a key new therapeutic target for RA is currently an important task. Activated fibroblast-like synoviocytes (FLSs) play a crucial role in the progression of RA, which release interleukin (IL)-1β, IL-6 and tumor necrosis factor (TNF)-α resulting in abnormal inflammatory reaction in the synovium. A previous study has highlighted the correlation of m6A reader insulin-like growth factor 2 mRNA-binding protein 2 (IGF2BP2) with inflammation-related diseases in human. However, the role of IGF2BP2 in the inflammatory reaction of FLSs during RA progression has not been assessed. In this study, IGF2BP2 expression was decreased in the synovial tissues of RA patients and collagen-induced arthritis (CIA) rats. Intra-articular injection of an adeno-associated virus (AAV) vector overexpressing IGF2BP2 relieved paw swelling, synovial hyperplasia and cartilage destruction in CIA rats. IGF2BP2 overexpression also inhibited lipopolysaccharide (LPS)-mediated RA fibroblast-like synoviocytes (RA-FLSs) migration and invasion accompanied by a decreased level of inflammatory factors in vitro. Conversely, IGF2BP2 suppression promoted RA-FLSs migration and invasion with an elevated level of inflammatory factors in vitro. The sequencing result showed that glutathione S-transferase Mu 5 (GSTM5), a key antioxidant gene, was the target mRNA of IGF2BP2. Further experiments demonstrated that IGF2BP2 strengthened the stability of GSTM5 mRNA, leading to weakened inflammatory reaction and reduced expression of matrix metalloproteinase 9 and 13 (MMP9, MMP13). Therefore, IGF2BP2-GSTM5 axis may represent a potential therapeutic target for RA treatment.
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Affiliation(s)
- Yunyi Nan
- Department of Orthopaedics, Affiliated Hospital of Nantong University, Medical School of Nantong University, 226001, Nantong, China
| | - Minhao Chen
- Department of Orthopaedics, Affiliated Hospital of Nantong University, Medical School of Nantong University, 226001, Nantong, China
| | - Weijie Wu
- Department of Orthopaedics, Affiliated Hospital of Nantong University, Medical School of Nantong University, 226001, Nantong, China
- Department of Orthopaedics, Affiliated Nantong Hospital of Shanghai University, The Sixth People's Hospital of Nantong, 226001, Nantong, China
| | - Rongrong Huang
- Department of Pharmacy, Affiliated Hospital of Nantong University, 226001, Nantong, China
| | - Weiwei Sun
- Department of Orthopaedics, Affiliated Hospital of Nantong University, Medical School of Nantong University, 226001, Nantong, China
| | - Qian Lu
- Department of Rheumatology, Affiliated Hospital of Nantong University, 226001, Nantong, China
| | - Zhifeng Gu
- Department of Rheumatology, Affiliated Hospital of Nantong University, 226001, Nantong, China
| | - Xingxing Mao
- Department of Orthopaedics, Affiliated Nantong Hospital of Shanghai University, The Sixth People's Hospital of Nantong, 226001, Nantong, China.
| | - Hua Xu
- Department of Orthopaedics, Affiliated Hospital of Nantong University, Medical School of Nantong University, 226001, Nantong, China.
| | - Youhua Wang
- Department of Orthopaedics, Affiliated Hospital of Nantong University, Medical School of Nantong University, 226001, Nantong, China.
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Wu Y, Zhang C, Duan S, Li Y, Lu L, Bajpai A, Yang C, Mi J, Tian G, Xu F, Qi D, Xu Z, Chi XD. TEAD1, MYO7A and NDUFC2 are novel functional genes associated with glucose metabolism in BXD recombinant inbred population. Diabetes Obes Metab 2024; 26:1775-1788. [PMID: 38385898 DOI: 10.1111/dom.15491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 01/12/2024] [Accepted: 01/17/2024] [Indexed: 02/23/2024]
Abstract
AIM The liver is an important metabolic organ that governs glucolipid metabolism, and its dysfunction may cause non-alcoholic fatty liver disease, type 2 diabetes mellitus, dyslipidaemia, etc. We aimed to systematic investigate the key factors related to hepatic glucose metabolism, which may be beneficial for understanding the underlying pathogenic mechanisms for obesity and diabetes mellitus. MATERIALS AND METHODS Oral glucose tolerance test (OGTT) phenotypes and liver transcriptomes of BXD mice under chow and high-fat diet conditions were collected from GeneNetwork. QTL mapping was conducted to pinpoint genomic regions associated with glucose homeostasis. Candidate genes were further nominated using a multi-criteria approach and validated to confirm their functional relevance in vitro. RESULTS Our results demonstrated that plasma glucose levels in OGTT were significantly affected by both diet and genetic background, with six genetic regulating loci were mapped on chromosomes 1, 4, and 7. Moreover, TEAD1, MYO7A and NDUFC2 were identified as the candidate genes. Functionally, siRNA-mediated TEAD1, MYO7A and NDUFC2 knockdown significantly decreased the glucose uptake and inhibited the transcription of genes related to insulin and glucose metabolism pathways. CONCLUSIONS Our study contributes novel insights to the understanding of hepatic glucose metabolism, demonstrating the impact of TEAD1, MYO7A and NDUFC2 on mitochondrial function in the liver and their regulatory role in maintaining in glucose homeostasis.
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Affiliation(s)
- Yingying Wu
- The Second School of Clinical Medicine of Binzhou Medical University, Yantai, China
| | - Chao Zhang
- Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China
| | - Shaofei Duan
- Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai, China
| | - Yushan Li
- Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai, China
| | - Lu Lu
- The University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - Akhilesh Bajpai
- The University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - Chunhua Yang
- Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai, China
| | - Jia Mi
- Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai, China
| | - Geng Tian
- Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai, China
| | - Fuyi Xu
- Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai, China
| | - Donglai Qi
- Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai, China
| | - Zhaowei Xu
- Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai, China
| | - Xiao Dong Chi
- Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai, China
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Yundung Y, Mohammed S, Paneni F, Reutersberg B, Rössler F, Zimmermann A, Pelisek J. Transcriptomics analysis of long non-coding RNAs in smooth muscle cells from patients with peripheral artery disease and diabetes mellitus. Sci Rep 2024; 14:8615. [PMID: 38616192 PMCID: PMC11016542 DOI: 10.1038/s41598-024-59164-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 04/08/2024] [Indexed: 04/16/2024] Open
Abstract
Diabetes mellitus (DM) is a significant risk factor for peripheral arterial disease (PAD), and PAD is an independent predictor of cardiovascular disorders (CVDs). Growing evidence suggests that long non-coding RNAs (lncRNAs) significantly contribute to disease development and underlying complications, particularly affecting smooth muscle cells (SMCs). So far, no study has focused on transcriptome analysis of lncRNAs in PAD patients with and without DM. Tissue samples were obtained from our Vascular Biobank. Due to the sample's heterogeneity, expression analysis of lncRNAs in whole tissue detected only ACTA2-AS1 with a 4.9-fold increase in PAD patients with DM. In contrast, transcriptomics of SMCs revealed 28 lncRNAs significantly differentially expressed between PAD with and without DM (FDR < 0.1). Sixteen lncRNAs were of unknown function, six were described in cancer, one connected with macrophages polarisation, and four were associated with CVDs, mainly with SMC function and phenotypic switch (NEAT1, MIR100HG, HIF1A-AS3, and MRI29B2CHG). The enrichment analysis detected additional lncRNAs H19, CARMN, FTX, and MEG3 linked with DM. Our study revealed several lncRNAs in diabetic PAD patients associated with the physiological function of SMCs. These lncRNAs might serve as potential therapeutic targets to improve the function of SMCs within the diseased tissue and, thus, the clinical outcome.
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Affiliation(s)
- Yankey Yundung
- Experimental Vascular Surgery/Department of Vascular Surgery, University Hospital Zurich/University of Zurich, Schlieren, Switzerland
| | - Shafeeq Mohammed
- Department of Cardiology/Center for Translational and Experimental Cardiology (CTEC), University Hospital Zurich/University of Zurich, Schlieren, Switzerland
| | - Francesco Paneni
- Department of Cardiology/Center for Translational and Experimental Cardiology (CTEC), University Hospital Zurich/University of Zurich, Schlieren, Switzerland
| | - Benedikt Reutersberg
- Experimental Vascular Surgery/Department of Vascular Surgery, University Hospital Zurich/University of Zurich, Schlieren, Switzerland
| | - Fabian Rössler
- Department of Surgery and Transplantation, University Hospital Zurich, Zürich, Switzerland
| | - Alexander Zimmermann
- Experimental Vascular Surgery/Department of Vascular Surgery, University Hospital Zurich/University of Zurich, Schlieren, Switzerland
| | - Jaroslav Pelisek
- Experimental Vascular Surgery/Department of Vascular Surgery, University Hospital Zurich/University of Zurich, Schlieren, Switzerland.
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6
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Lu F, Gao G, Zhang H, Zhang W. The relationship between polymorphism of IGF2BP2 gene rs4402960 and risk of pan-cancer: a meta-analysis and a bioinformatics analysis. NUCLEOSIDES, NUCLEOTIDES & NUCLEIC ACIDS 2024:1-17. [PMID: 38555596 DOI: 10.1080/15257770.2024.2333036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 03/14/2024] [Indexed: 04/02/2024]
Abstract
OBJECTIVE To conduct a meta-analysis and a bioinformatics analysis to assess the relationship between IGF2BP2 gene polymorphism and pan-cancer risk. METHODS PubMed, EMBASE, and Web of Science were conducted to literature searches. The heterogeneity test was used in five genetic models. Odds ratios (OR), 95% confidence intervals (CI), and p-values were used to evaluate the combined effects of various genetic models. Subgroup analysis and Meta-regression analysis were used to analyze the characteristics of heterogeneity. Sensitivity analysis and publication bias were also performed. Transcriptomic information on IGF2BP2 was downloaded and analyzed from the TCGA and GTEx databases. GEPIA (http://gepia.cancer-pku.cn/) was performed to analyze the relationship between IGF2BP2 expression and cancer tissue. RESULTS This meta-analysis contained 7 case-control studies, with 5,908 cases and 7,890 controls. There were significant differences in the heterozygous genetic model of IGF2BP2 gene rs4402960 polymorphism (OR = 1.080, 95% CI = 1.003-1.163, p = 0.041). In subgroup analysis based on ethnicity, There was a statistical significant association in Chinese (heterozygous: OR = 1.110, 95% CI = 1.010-1.220, p = 0.030). Bioinformatics analysis found that IGF2BP2 was over-expressed in pan-cancer (p < 0.01). In addition, the Kaplan-Meier estimate showed that there is statistical significance of OS between the low and high IGF2BP2 TPM groups in Lung adenocarcinoma (p <0.001). CONCLUSIONS To sum up, IGF2BP2 gene polymorphism may be related to cancer risk. IGF2BP2 has diagnostic value in the diagnosis and treatment of pan-cancer.
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Affiliation(s)
- Fengke Lu
- Department of Blood Transfusion, Liuzhou Hospital, Guangzhou Women and Children's Medical Center, Liuzhou, Guangxi, China
| | - Gan Gao
- Department of Clinical Laboratory, Liuzhou Hospital, Guangzhou Women and Children's Medical Center, Liuzhou, Guangxi, China
| | - Hongyu Zhang
- Department of Clinical Laboratory, The Third Affiliated Hospital of Guangxi University of Chinese Medicine, Liuzhou Traditional Chinese Medical Hospital, The Third Clinical Faculty of Guangxi University of Chinese Medicine, Liuzhou, Guangxi, China
| | - Wei Zhang
- Department of Clinical Laboratory, Guilin TCM Hospital Affiliated to Guangxi University of Chinese Medicine, Guilin, Guangxi, China
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Liu K, Wei C, Yu H, Zhang Q, Du Z. HMGA2 overexpression activates IGF2BP2 to stabilize APLP2 via m6A modification and promote pancreatic cancer progression. Heliyon 2024; 10:e27268. [PMID: 38449630 PMCID: PMC10915557 DOI: 10.1016/j.heliyon.2024.e27268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 02/27/2024] [Accepted: 02/27/2024] [Indexed: 03/08/2024] Open
Abstract
Pancreatic cancer is a highly aggressive malignancy of the digestive system, with occult onset, rapid progression, and poor prognosis. The genetic heterogeneity of pancreatic cancer contributes to its highly malignant biological behavior. HMGA2 is overexpressed in tumors and is known to regulate tumor progression in various cancers through the HMGA2-IGF2BP2 axis, but its role and mechanism in pancreatic cancer remain unclear. In this study, we demonstrated that HMGA2 promotes pancreatic cancer progression. We further revealed that HMGA2 upregulates IGF2BP2, which stabilizes APLP2 mRNA via m6A modification, thereby promoting pancreatic cancer progression. These results indicate that HMGA2/IGF2BP2/APLP2 signaling axis regulates the progression of pancreatic cancer.
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Affiliation(s)
- Ke Liu
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Congbing Wei
- Hospital of China University of Geosciences (Wuhan), Wuhan, 430074, China
| | - Haixin Yu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Qun Zhang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Zhouyuan Du
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
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Ozato Y, Hara T, Meng S, Sato H, Tatekawa S, Uemura M, Yabumoto T, Uchida S, Ogawa K, Doki Y, Eguchi H, Ishii H. RNA methylation in inflammatory bowel disease. Cancer Sci 2024; 115:723-733. [PMID: 38263895 PMCID: PMC10920996 DOI: 10.1111/cas.16048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/29/2023] [Accepted: 12/06/2023] [Indexed: 01/25/2024] Open
Abstract
RNA modifications, including the renowned m6A, have recently garnered significant attention. This chemical alteration, present in mRNA, exerts a profound influence on protein expression levels by affecting splicing, nuclear export, stability, translation, and other critical processes. Although the role of RNA methylation in the pathogenesis and progression of IBD and colorectal cancer has been reported, many aspects remain unresolved. In this comprehensive review, we present recent studies on RNA methylation in IBD and colorectal cancer, with a particular focus on m6A and its regulators. We highlight the pivotal role of m6A in the pathogenesis of IBD and colorectal cancer and explore the potential applications of m6A modifications in the diagnosis and treatment of these diseases.
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Grants
- 18KK0251 19K22658 20H00541 21K19526 Ministry of Education, Culture, Sports, Science and Technology
- 22H03146 22K19559 23K19505 16H06279 (PAGS) Ministry of Education, Culture, Sports, Science and Technology
- grant nos. 17cm0106414h0002 JP21lm0203007 Ministry of Education, Culture, Sports, Science and Technology
- 2021-48 Mitsubishi Foundation
- Ministry of Education, Culture, Sports, Science and Technology
- Mitsubishi Foundation
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Affiliation(s)
- Yuki Ozato
- Department of Medical Data ScienceCenter of Medical Innovation and Translational Research, Osaka University Graduate School of MedicineSuitaJapan
- Department of Gastrointestinal SurgeryOsaka University Graduate School of MedicineSuitaJapan
| | - Tomoaki Hara
- Department of Medical Data ScienceCenter of Medical Innovation and Translational Research, Osaka University Graduate School of MedicineSuitaJapan
| | - Sikun Meng
- Department of Medical Data ScienceCenter of Medical Innovation and Translational Research, Osaka University Graduate School of MedicineSuitaJapan
| | - Hiromichi Sato
- Department of Medical Data ScienceCenter of Medical Innovation and Translational Research, Osaka University Graduate School of MedicineSuitaJapan
- Department of Gastrointestinal SurgeryOsaka University Graduate School of MedicineSuitaJapan
| | - Shotaro Tatekawa
- Department of Radiation OncologyOsaka University Graduate School of MedicineSuitaJapan
| | - Mamoru Uemura
- Department of Gastrointestinal SurgeryOsaka University Graduate School of MedicineSuitaJapan
| | | | - Shizuka Uchida
- Department of Clinical Medicine, Center for RNA MedicineAalborg UniversityCopenhagen SVDenmark
| | - Kazuhiko Ogawa
- Department of Radiation OncologyOsaka University Graduate School of MedicineSuitaJapan
| | - Yuichiro Doki
- Department of Gastrointestinal SurgeryOsaka University Graduate School of MedicineSuitaJapan
| | - Hidetoshi Eguchi
- Department of Gastrointestinal SurgeryOsaka University Graduate School of MedicineSuitaJapan
| | - Hideshi Ishii
- Department of Medical Data ScienceCenter of Medical Innovation and Translational Research, Osaka University Graduate School of MedicineSuitaJapan
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Ma XX, Zhou XY, Feng MG, Ji YT, Song FF, Tang QC, He Q, Zhang YF. Dual Role of IGF2BP2 in Osteoimmunomodulation during Periodontitis. J Dent Res 2024; 103:208-217. [PMID: 38193302 DOI: 10.1177/00220345231216115] [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] [Indexed: 01/10/2024] Open
Abstract
Periodontitis is a complex disease characterized by distinct inflammatory stages, with a peak of inflammation in the early phase and less prominent inflammation in the advanced phase. The insulin-like growth factor 2-binding proteins 2 (IGF2BP2) has recently been identified as a new m6A reader that protects m6A-modified messenger RNAs (mRNAs) from decay, thus participating in multiple biological processes. However, its role in periodontitis remains unexplored. Here, we investigated the role of IGF2BP2 in inflammation and osteoclast differentiation using a ligature-induced periodontitis model. Our findings revealed that IGF2BP2 responded to bacterial-induced inflammatory stimuli and exhibited differential expression patterns in early and advanced periodontitis stages, suggesting its dual role in regulating this disease. Depletion of Igf2bp2 contributed to increased release of inflammatory cytokines, thereby exacerbating periodontitis after 3 d of ligature while suppressing osteoclast differentiation and ameliorating periodontitis after 14 d of ligature. Mechanistically, we demonstrated that IGF2BP2 directly interacted with Cd5l and Cd36 mRNA via RNA immunoprecipitation assay. Overexpression of CD36 or recombinant CD5L rescued the osteoclast differentiation ability of Igf2bp2-null cells upon lipopolysaccharide stimulus, and thus the downregulation of Cd36 and Cd5l effectively reversed periodontitis in the advanced stage. Altogether, this study deepens our understanding of the potential mechanistic link among the dysregulated m6A reader IGF2BP2, immunomodulation, and osteoclastogenesis during different stages of periodontitis.
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Affiliation(s)
- X X Ma
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - X Y Zhou
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - M G Feng
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Y T Ji
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - F F Song
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Q C Tang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Q He
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Y F Zhang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Medical Research Institute, School of Medicine, Wuhan University, Wuhan, China
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Deng K, Li X, Liu Z, Su Y, Sun X, Wei W, Fan Y, Zhang Y, Wang F. IGF2BP2 regulates the proliferation and migration of endometrial stromal cells through the PI3K/AKT/mTOR signaling pathway in Hu sheep. J Anim Sci 2024; 102:skae129. [PMID: 38727196 DOI: 10.1093/jas/skae129] [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: 03/11/2024] [Accepted: 05/09/2024] [Indexed: 06/06/2024] Open
Abstract
Insulin-like growth factor 2 mRNA binding protein 2 (IGF2BP2), a significant member of the conserved RNA-binding protein family, plays various roles in numerous physiological and pathological processes. However, the specific function of IGF2BP2 in regulating endometrial function in sheep remains largely unknown. In this study, we observed a significant upregulation in IGF2BP2 mRNA abundance in the endometrium during the luteal phase compared to the follicular phase in Hu sheep. The knockdown of IGF2BP2 resulted in accelerated cell proliferation and migration of Hu sheep endometrial stromal cells (ESCs). Moreover, RNA sequencing analysis revealed that genes with significantly altered expression in IGF2BP2 knockdown cells were predominantly enriched in endometrial receptivity-related signaling pathways, such as cytokine-cytokine receptor interaction, NOD-like receptor, PI3K-AKT, and JAK-STAT signaling pathway. Additionally, the knockdown of IGF2BP2 significantly increased the expression of matrix metalloprotein 9 (MMP9), vascular endothelial growth factor, and prolactin (PRL) in ESCs. The knockdown of IGF2BP2 was also observed to stimulate the PI3K/AKT/mTOR pathway by upregulating integrin β4 (ITGB4) expression. Notably, the downregulation of ITGB4 attenuates IGF2BP2 knockdown-induced facilitation of proliferation and migration of Hu sheep ESCs by inhibiting the PI3K/AKT/mTOR pathway. Collectively, these findings highlight the important role of IGF2BP2 in regulating endometrial function, particularly through the modulation of ESC proliferation and migration via the PI3K/AKT/mTOR pathway.
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Affiliation(s)
- Kaiping Deng
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiaodan Li
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhipeng Liu
- Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yalong Su
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xuan Sun
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Wurilege Wei
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China
- Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot, 010000, China
| | - Yixuan Fan
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yanli Zhang
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Feng Wang
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
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Ren Y, Li Z, Li J, Liang R, Wang Z, Bai Y, Yang Y, Tang Q, Fu Y, Zhang X, Zhang Y, Yu Y, Xiong Y. m 6 A mRNA methylation: Biological features, mechanisms, and therapeutic potentials in type 2 diabetes mellitus. Obes Rev 2023; 24:e13639. [PMID: 37732463 DOI: 10.1111/obr.13639] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/10/2023] [Accepted: 08/27/2023] [Indexed: 09/22/2023]
Abstract
As the most common internal post-transcriptional RNA modification in eukaryotic cells, N6-methyladenosine (m6 A) performs a dynamic and reversible role in a variety of biological processes mediated by methyltransferases (writers), demethylases (erasers), and m6 A binding proteins (readers). M6 A methylation enables transcriptome conversion in different signals that regulate various physiological activities and organ development. Over the past few years, emerging studies have identified that mRNA m6 A regulators defect in β-cell leads to abnormal regulation of the target mRNAs, thereby resulting in β-cell dysfunction and loss of β-cell identity and mass, which are strongly associated with type 2 diabetes mellitus (T2DM) pathogenesis. Also, mRNA m6 A modification has been implicated with insulin resistance in muscles, fat, and liver cells/tissues. In this review, we elaborate on the biological features of m6 A methylation; provide a comprehensive overview of the underlying mechanisms that how it controls β-cell function, identity, and mass as well as insulin resistance; highlight its connections to glucose metabolism and lipid metabolism linking to T2DM; and further discuss its role in diabetes complications and its therapeutic potentials for T2DM diagnosis and treatment.
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Affiliation(s)
- Yuanyuan Ren
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
| | - Zi Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
| | - Jiaoyu Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
| | - Rui Liang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
| | - Zhen Wang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
| | - Yiduo Bai
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
| | - Yafang Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
| | - Qian Tang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
| | - Yaolei Fu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
| | - Xiaobo Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
| | - Yu Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
| | - Yi Yu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
- School of Medicine, Northwest University, Xi'an, Shaanxi, China
| | - Yuyan Xiong
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, College of Life Sciences, Northwest University, Xi'an, Shaanxi, China
- School of Medicine, Northwest University, Xi'an, Shaanxi, China
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12
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Yu D, Xiao Z, Zou Z, Lin L, Li J, Tan J, Chen W. IGF2BP2 promotes head and neck squamous carcinoma cell proliferation and growth via the miR-98-5p/PI3K/Akt signaling pathway. Front Oncol 2023; 13:1252999. [PMID: 37936610 PMCID: PMC10627011 DOI: 10.3389/fonc.2023.1252999] [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: 07/04/2023] [Accepted: 10/06/2023] [Indexed: 11/09/2023] Open
Abstract
Introduction As a N6-methyladenosine reader protein, Insulin-like growth factor 2 mRNA-binding protein 2 (IGF2BP2) is a critical player in tumor progression and metastasis. However, its specific function in head and neck squamous carcinoma (HNSCC) has yet to be determined. The present study aimed to determine the role of IGF2BP2 in HNSCC. Methods The expression of IGF2BP2 in HNSCC was analyzed using The Cancer Genome Atlas (TCGA) dataset and detected in HNSCC tissues and cells, respectively. Gain- and loss- of function methods were employed to study the effects of IGF2BP2 on HNSCC cell proliferation and tumorigenesis in vitro and in vivo. MicroRNAs (miRNAs) regulating IGF2BP2 were predicted using online tools and confirmed experimentally. Results We showed augmented IGF2BP2 expression in HNSCC, which correlated with poor clinical outcomes. Functional studies showed that IGF2BP2 promoted HNSCC cell proliferation by facilitating cell cycle progression while inhibiting apoptosis. We further demonstrated that IGF2BP2 could enhance HNSCC cell tumorigenesis in vivo. Mechanistically, our data revealed that miR-98-5p could directly target IGF2BP2. The interplay between IGF2BP2 and miR-98-5p is essential to drive the progression of HNSCC via the phosphatidylinositol-4,5-bisphosphate 3-kinase (PI3K)-protein kinase B (Akt) pathway signaling pathway. Discussion The current study revealed the oncogenic role of IGF2BP2 and provided insights into its potential mechanism in HNSCC tumorigenesis. Additionally, IGF2BP2 might represent a promising therapeutic target and serve as prognostic biomarker in patients with HNSCC.
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Affiliation(s)
- Dan Yu
- Department of Otorhinolaryngology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhenlong Xiao
- Department of Otorhinolaryngology, The Central Hospital of Wuhan, Hubei University of Medicine, Shiyan, Hubei, China
| | - Zhefei Zou
- Department of Otorhinolaryngology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ling Lin
- Department of Otorhinolaryngology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Li
- Department of Otorhinolaryngology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jian Tan
- Department of Otorhinolaryngology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Chen
- Department of Otorhinolaryngology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory for Molecular Diagnosis of Hubei Province, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Medical University, Chongqing, China
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13
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Zhang H, Gu Y, Gang Q, Huang J, Xiao Q, Ha X. N6-methyladenosine RNA modification: an emerging molecule in type 2 diabetes metabolism. Front Endocrinol (Lausanne) 2023; 14:1166756. [PMID: 37484964 PMCID: PMC10360191 DOI: 10.3389/fendo.2023.1166756] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 06/16/2023] [Indexed: 07/25/2023] Open
Abstract
Type 2 diabetes (T2D) is a metabolic disease with an increasing rate of incidence worldwide. Despite the considerable progress in the prevention and intervention, T2D and its complications cannot be reversed easily after diagnosis, thereby necessitating an in-depth investigation of the pathophysiology. In recent years, the role of epigenetics has been increasingly demonstrated in the disease, of which N6-methyladenosine (m6A) is one of the most common post-transcriptional modifications. Interestingly, patients with T2D show a low m6A abundance. Thus, a comprehensive analysis and understanding of this phenomenon would improve our understanding of the pathophysiology, as well as the search for new biomarkers and therapeutic approaches for T2D. In this review, we systematically introduced the metabolic roles of m6A modification in organs, the metabolic signaling pathways involved, and the effects of clinical drugs on T2D.
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Affiliation(s)
- Haocheng Zhang
- The Second School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China
- Department of Clinical Laboratory, The 940th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army, Lanzhou, Gansu, China
- Key Laboratory of Stem Cells and Gene Drugs of Gansu Province, Lanzhou, Gansu, China
| | - Yan Gu
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Qiaojian Gang
- The Second School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China
| | - Jing Huang
- School of Public Health, Gansu University of Traditional Chinese Medicine, Lanzhou, Gansu, China
| | - Qian Xiao
- School of Public Health, Gansu University of Traditional Chinese Medicine, Lanzhou, Gansu, China
| | - Xiaoqin Ha
- The Second School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China
- Department of Clinical Laboratory, The 940th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army, Lanzhou, Gansu, China
- Key Laboratory of Stem Cells and Gene Drugs of Gansu Province, Lanzhou, Gansu, China
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14
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Que Z, Yang K, Wang N, Li S, Li T. Functional Role of RBP in Osteosarcoma: Regulatory Mechanism and Clinical Therapy. Anal Cell Pathol (Amst) 2023; 2023:9849719. [PMID: 37426488 PMCID: PMC10328736 DOI: 10.1155/2023/9849719] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/06/2023] [Accepted: 06/11/2023] [Indexed: 07/11/2023] Open
Abstract
Malignant bone neoplasms can be represented by osteosarcoma (OS), which accounts for 36% of all sarcomas. To reduce tumor malignancy, extensive efforts have been devoted to find an ideal target from numerous candidates, among which RNA-binding proteins (RBPs) have shown their unparalleled competitiveness. With the special structure of RNA-binding domains, RBPs have the potential to establish relationships with RNAs or small molecules and are considered regulators of different sections of RNA processes, including splicing, transport, translation, and degradation of RNAs. RBPs have considerable significant roles in various cancers, and experiments revealed that there was a strong association of RBPs with tumorigenesis and tumor cell progression. Regarding OS, RBPs are a new orientation, but achievements in hand are noteworthy. Higher or lower expression of RBPs was first found in tumor cells compared to normal tissue. By binding to different molecules, RBPs are capable of influencing tumor cell phenotypes through different signaling pathways or other axes, and researches on medical treatment have been largely inspired. Exploring the prognostic and therapeutic values of RBPs in OS is a hotspot where diverse avenues on regulating RBPs have achieved dramatical effects. In this review, we briefly summarize the contribution of RBPs and their binding molecules to OS oncogenicity and generally introduce distinctive RBPs as samples. Moreover, we focus on the attempts to differentiate RBP's opposite functions in predicting prognosis and collect possible strategies for treatment. Our review provides forwards insight into improving the understanding of OS and suggests RBPs as potential biomarkers for therapies.
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Affiliation(s)
- Ziyuan Que
- Yangzhou University Medical College, Yangzhou University, Yangzhou 225009, Jiangsu Province, China
| | - Kang Yang
- Department of Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, Zhejiang, China
| | - Nan Wang
- Yangzhou University Medical College, Yangzhou University, Yangzhou 225009, Jiangsu Province, China
| | - Shuying Li
- Yangzhou University Medical College, Yangzhou University, Yangzhou 225009, Jiangsu Province, China
| | - Tao Li
- Department of Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, Zhejiang, China
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15
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Cheng Z, Ferris C, Crowe MA, Ingvartsen KL, Grelet C, Vanlierde A, Foldager L, Becker F, Wathes DC. Hepatic Global Transcriptomic Profiles of Holstein Cows According to Parity Reveal Age-Related Changes in Early Lactation. Int J Mol Sci 2023; 24:9906. [PMID: 37373054 DOI: 10.3390/ijms24129906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/01/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
Cows can live for over 20 years, but their productive lifespan averages only around 3 years after first calving. Liver dysfunction can reduce lifespan by increasing the risk of metabolic and infectious disease. This study investigated the changes in hepatic global transcriptomic profiles in early lactation Holstein cows in different lactations. Cows from five herds were grouped as primiparous (lactation number 1, PP, 534.7 ± 6.9 kg, n = 41), or multiparous with lactation numbers 2-3 (MP2-3, 634.5 ± 7.5 kg, n = 87) or 4-7 (MP4-7, 686.6 ± 11.4 kg, n = 40). Liver biopsies were collected at around 14 days after calving for RNA sequencing. Blood metabolites and milk yields were measured, and energy balance was calculated. There were extensive differences in hepatic gene expression between MP and PP cows, with 568 differentially expressed genes (DEGs) between MP2-3 and PP cows, and 719 DEGs between MP4-7 and PP cows, with downregulated DEGs predominating in MP cows. The differences between the two age groups of MP cows were moderate (82 DEGs). The gene expression differences suggested that MP cows had reduced immune functions compared with the PP cows. MP cows had increased gluconeogenesis but also evidence of impaired liver functionality. The MP cows had dysregulated protein synthesis and glycerophospholipid metabolism, and impaired genome and RNA stability and nutrient transport (22 differentially expressed solute carrier transporters). The genes associated with cell cycle arrest, apoptosis, and the production of antimicrobial peptides were upregulated. More surprisingly, evidence of hepatic inflammation leading to fibrosis was present in the primiparous cows as they started their first lactation. This study has therefore shown that the ageing process in the livers of dairy cows is accelerated by successive lactations and increasing milk yields. This was associated with evidence of metabolic and immune disorders together with hepatic dysfunction. These problems are likely to increase involuntary culling, thus reducing the average longevity in dairy herds.
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Affiliation(s)
- Zhangrui Cheng
- Department of Pathobiology and Population Sciences, Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Herts AL9 7TA, UK
| | - Conrad Ferris
- Agri-Food and Biosciences Institute, Newforge Lane, Upper Malone Road, Belfast BT9 5PX, UK
| | - Mark A Crowe
- School of Veterinary Medicine, University College Dublin, Belfield, D04 V1W8 Dublin, Ireland
| | - Klaus L Ingvartsen
- Department of Animal and Veterinary Sciences, Aarhus University, Blichers Allé 20, 8830 Tjele, Denmark
| | - Clément Grelet
- Valorisation of Agricultural Products Department, Walloon Agricultural Research Centre, 5030 Gembloux, Belgium
| | - Amélie Vanlierde
- Valorisation of Agricultural Products Department, Walloon Agricultural Research Centre, 5030 Gembloux, Belgium
| | - Leslie Foldager
- Department of Animal and Veterinary Sciences, Aarhus University, Blichers Allé 20, 8830 Tjele, Denmark
- Bioinformatics Research Centre, Aarhus University, Universitetsbyen 81, 8000 Aarhus, Denmark
| | - Frank Becker
- Research Institute for Farm Animal Biology, Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
| | - D Claire Wathes
- Department of Pathobiology and Population Sciences, Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Herts AL9 7TA, UK
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Liu F, Cao Y, Zhang C, Su H. Decreased DANCR contributes to high glucose-induced extracellular matrix accumulation in human renal mesangial cell via regulating the TGF-β/Smad signaling. FASEB J 2023; 37:e22926. [PMID: 37052733 DOI: 10.1096/fj.202300146r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 03/30/2023] [Accepted: 04/03/2023] [Indexed: 04/14/2023]
Abstract
Glomerulosclerosis is one of the major histopathologic changes in diabetic kidney diseases (DKD), which is characterized by excessive deposition of extracellular matrix (ECM) in the glomerulus mainly produced by mesangial cells in response to transforming growth factor-β (TGF-β) stimuli under diabetic conditions. Despite TGF-β has been implicated as a major pathogenic factor in the development of diabetic glomerulosclerosis, clinical trials of monoclonal antibodies against TGF-β failed to demonstrate therapeutic benefits. Thus, developing alternative therapeutic strategies to effectively block the TGF-β/Smad signaling could be of paramount importance for DKD treatment. Emerging evidence indicates that dysregulation of certain lncRNAs can lead to aberrant activation of TGF-β/Smad signaling. Herein, we identified a novel lncRNA, named DANCR, which could efficiently function as a negative regulator of TGF-β/Smad signaling in mesangial cells. Ectopic expression of DANCR could specifically block the activation of TGF-β/Smad signaling induced by high-glucose or TGF-β in human renal mesangial cells (HRMCs). Mechanistically, DANCR functions to stabilize nemo-like kinase (NLK) mRNA through interaction with insulin-like growth factor 2 mRNA-binding protein 2 (IGF2BP2), resulting in enhanced phosphorylating on the linker region of activated Smad2/3 in the nucleus. Taken together, our data have uncovered an lncRNA-based regulatory modality of the TGF-β/Smad signaling and identified DANCR as an endogenous blocker of TGF-β/Smad signaling in HRMCs, which may represent a potential therapeutic target against the diabetic glomerulosclerosis.
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Affiliation(s)
- Feng Liu
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yiling Cao
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chun Zhang
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hua Su
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Liu TY, Hu CC, Han CY, Mao SY, Zhang WX, Xu YM, Sun YJ, Jiang DB, Zhang XY, Zhang JX, Wang J, Qiao XP, Pan JY, Yang SY, Yang K. IGF2BP2 promotes colorectal cancer progression by upregulating the expression of TFRC and enhancing iron metabolism. Biol Direct 2023; 18:19. [PMID: 37088822 PMCID: PMC10122817 DOI: 10.1186/s13062-023-00373-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 04/11/2023] [Indexed: 04/25/2023] Open
Abstract
BACKGROUND Colorectal cancer (CRC) is one of the most common malignant tumors of the digestive system, ranking third for morbidity and mortality worldwide. At present, no effective control method is available for this cancer type. In tumor cells, especially iron metabolization, is necessary for its growth and proliferation. High levels of iron are an important feature to maintain tumor growth; however, the overall mechanism remains unclear. METHODS We used western blotting, immunohistochemistry (IHC) and real-time quantitative PCR to analyze the expression of IGF2BP2 in cell lines and tissues. Further, RNA-sequencing, RNA immunoprecipitation and methylated RNA immunoprecipitation experiments explored the specific binding of target genes. Moreover, the RNA stability assay was performed to determine the half-life of genes downstream of IGF2BP2. In addition, the Cell Counting Kit-8, colony formation assay, 5-ethynyl-2'-deoxyuridine assay and flow cytometry were used to evaluate the effects of IGF2BP2 on proliferation and iron metabolism. Lastly, the role of IGF2BP2 in promoting CRC growth was demonstrated in animal models. RESULTS We observed that IGF2BP2 is associated with iron homeostasis and that TFRC is a downstream target of IGF2BP2. Further, overexpression of TFRC can rescue the growth of IGF2BP2-knockdown CRC cells. Mechanistically, we determined that IGF2BP2 regulates TFRC methylation via METTL4, thereby regulating iron metabolism and promoting CRC growth. Furthermore, using animal models, we observed that IGF2BP2 promotes CRC growth. CONCLUSION IGF2BP2 regulates TFRC mRNA methylation via METTL4, thereby regulating iron metabolism and promoting CRC growth. Our study highlights the key roles of IGF2BP2 in CRC carcinogenesis and the iron transport pathways.
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Affiliation(s)
- Tian-Yue Liu
- Department of Immunology, the Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Chen-Chen Hu
- Department of Immunology, the Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Chen-Ying Han
- Department of Immunology, the Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Si-Yi Mao
- School of Basic Medicine, the Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Wen-Xin Zhang
- School of Basic Medicine, the Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Yi-Ming Xu
- School of Basic Medicine, the Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Yuan-Jie Sun
- Department of Immunology, the Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Dong-Bo Jiang
- Department of Immunology, the Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Xi-Yang Zhang
- Military Medical Innovation Center, the Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Jia-Xing Zhang
- Department of Immunology, the Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Jing Wang
- Department of Immunology, the Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Xu-Peng Qiao
- College of medical technology, Shaanxi University of traditional Chinese Medicine, Xianyang, Shaanxi, 712046, China
| | - Jing-Yu Pan
- Department of Immunology, the Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Shu-Ya Yang
- Department of Immunology, the Fourth Military Medical University, Xi'an, Shaanxi, 710032, China.
| | - Kun Yang
- Department of Immunology, the Fourth Military Medical University, Xi'an, Shaanxi, 710032, China.
- Department of Rheumatology and Immunology, Tangdu Hospital of the Air Force Medical University, Xi'an, Shaanxi, 710038, China.
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18
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A Wrong Fate Decision in Adipose Stem Cells upon Obesity. Cells 2023; 12:cells12040662. [PMID: 36831329 PMCID: PMC9954614 DOI: 10.3390/cells12040662] [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: 01/30/2023] [Revised: 02/16/2023] [Accepted: 02/17/2023] [Indexed: 02/22/2023] Open
Abstract
Progress has been made in identifying stem cell aging as a pathological manifestation of a variety of diseases, including obesity. Adipose stem cells (ASCs) play a core role in adipocyte turnover, which maintains tissue homeostasis. Given aberrant lineage determination as a feature of stem cell aging, failure in adipogenesis is a culprit of adipose hypertrophy, resulting in adiposopathy and related complications. In this review, we elucidate how ASC fails in entering adipogenic lineage, with a specific focus on extracellular signaling pathways, epigenetic drift, metabolic reprogramming, and mechanical stretch. Nonetheless, such detrimental alternations can be reversed by guiding ASCs towards adipogenesis. Considering the pathological role of ASC aging in obesity, targeting adipogenesis as an anti-obesity treatment will be a key area of future research, and a strategy to rejuvenate tissue stem cell will be capable of alleviating metabolic syndrome.
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19
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Song D, Shang J, Long Y, Zhong M, Li L, Chen J, Xiang Y, Tan H, Zhu H, Hong X, Hou FF, Fu H, Liu Y. Insulin-like growth factor 2 mRNA-binding protein 3 promotes kidney injury by regulating β-catenin signaling. JCI Insight 2023; 8:162060. [PMID: 36520532 PMCID: PMC9977311 DOI: 10.1172/jci.insight.162060] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022] Open
Abstract
Wnt/β-catenin is a developmental signaling pathway that plays a crucial role in driving kidney fibrosis after injury. Activation of β-catenin is presumed to be regulated through the posttranslational protein modification. Little is known about whether β-catenin is also subjected to regulation at the posttranscriptional mRNA level. Here, we report that insulin-like growth factor 2 mRNA-binding protein 3 (IGF2BP3) plays a pivotal role in regulating β-catenin. IGF2BP3 was upregulated in renal tubular epithelium of various animal models and patients with chronic kidney disease. IGF2BP3 not only was a direct downstream target of Wnt/β-catenin but also was obligatory for transducing Wnt signal. In vitro, overexpression of IGF2BP3 in kidney tubular cells induced fibrotic responses, whereas knockdown of endogenous IGF2BP3 prevented the expression of injury and fibrosis markers in tubular cells after Wnt3a stimulation. In vivo, exogenous IGF2BP3 promoted β-catenin activation and aggravated kidney fibrosis, while knockdown of IGF2BP3 ameliorated renal fibrotic lesions after obstructive injury. RNA immunoprecipitation and mRNA stability assays revealed that IGF2BP3 directly bound to β-catenin mRNA and stabilized it against degradation. Furthermore, knockdown of IGF2BP3 in tubular cells accelerated β-catenin mRNA degradation in vitro. These studies demonstrate that IGF2BP3 promotes β-catenin signaling and drives kidney fibrosis, which may be mediated through stabilizing β-catenin mRNA. Our findings uncover a previously underappreciated dimension of the complex regulation of Wnt/β-catenin signaling and suggest a potential target for therapeutic intervention of fibrotic kidney diseases.
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Affiliation(s)
- Dongyan Song
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Guangdong Provincial Institute of Nephrology, and Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jingyue Shang
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Guangdong Provincial Institute of Nephrology, and Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yinyi Long
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Guangdong Provincial Institute of Nephrology, and Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Menghua Zhong
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Guangdong Provincial Institute of Nephrology, and Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Li Li
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Guangdong Provincial Institute of Nephrology, and Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jiongcheng Chen
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Guangdong Provincial Institute of Nephrology, and Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yadie Xiang
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Guangdong Provincial Institute of Nephrology, and Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Huishi Tan
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Guangdong Provincial Institute of Nephrology, and Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Haili Zhu
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Guangdong Provincial Institute of Nephrology, and Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xue Hong
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Guangdong Provincial Institute of Nephrology, and Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Fan Fan Hou
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Guangdong Provincial Institute of Nephrology, and Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Haiyan Fu
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Guangdong Provincial Institute of Nephrology, and Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Youhua Liu
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Guangdong Provincial Institute of Nephrology, and Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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20
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Zhan J, Zhang Q, Tong X, Liu X, Zhao C. HNF4G stimulates the development of pancreatic cancer by promoting IGF2BP2 transcription. CLINICAL & TRANSLATIONAL ONCOLOGY : OFFICIAL PUBLICATION OF THE FEDERATION OF SPANISH ONCOLOGY SOCIETIES AND OF THE NATIONAL CANCER INSTITUTE OF MEXICO 2023; 25:1472-1481. [PMID: 36607591 DOI: 10.1007/s12094-022-03048-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 12/12/2022] [Indexed: 01/07/2023]
Abstract
OBJECTIVE Pancreatic cancer is a devastating and lethal malignancy. Our study investigated the effective mechanism of HNF4G on pancreatic cancer cell functions through the IGF2BP2 transcription. METHODS HNF4G and IGF2BP2 expressions in pancreatic cancer were examined. The relationship between HNF4G expression and pancreatic cancer patients' clinicopathological characteristics was evaluated. After interfering with HNF4G expression in pancreatic cancer cells, the cell proliferative, migratory, and invasive capabilities were evaluated. Also, the expression of proliferation-related gene PCNA and migration and invasion-related gene MMP2 was determined. The binding relation between HNF4G and HNF4G promoter was forecasted and testified. A tumorigenesis assay in nude mice was performed to detect the HNF4G interference's effect on the subcutaneous tumorigenic capacity of pancreatic cancer cells. RESULTS HNF4G and IGF2BP2 expressions were up-regulated in pancreatic cancer. Specifically, interfering with HNF4G inhibited PANC-1 cell proliferative, invasive and migratory behaviors, and decreased PCNA and MMP2 expression. Mechanistically, HNF4G as a transcription factor could specifically bind to IGF2BP2 and promote its expression. Rescue assay findings showed that IGF2BP2 overexpression could reverse the inhibiting effect of HNF4G interference on pancreatic cancer cells. For the in vivo finding, interfering HNF4G expression retarded the subcutaneous tumorigenic ability of pancreatic cancer cells. CONCLUSION We summarize that HNF4G as a transcription factor regulates IGF2BP2 expression to promote pancreatic cancer cell proliferation and migration capacities.
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Affiliation(s)
- Jian Zhan
- Department of Abdominal Radiotherapy, Harbin Medical University Cancer Hospital, Harbin Medical University, 150 Haping Road, Nangang District, Harbin, 150081, Heilongjiang, China
| | - Qian Zhang
- Department of Abdominal Radiotherapy, Harbin Medical University Cancer Hospital, Harbin Medical University, 150 Haping Road, Nangang District, Harbin, 150081, Heilongjiang, China
| | - Xu Tong
- Department of Abdominal Radiotherapy, Harbin Medical University Cancer Hospital, Harbin Medical University, 150 Haping Road, Nangang District, Harbin, 150081, Heilongjiang, China
| | - Xu Liu
- Department of Abdominal Radiotherapy, Harbin Medical University Cancer Hospital, Harbin Medical University, 150 Haping Road, Nangang District, Harbin, 150081, Heilongjiang, China
| | - Chunbo Zhao
- Department of Abdominal Radiotherapy, Harbin Medical University Cancer Hospital, Harbin Medical University, 150 Haping Road, Nangang District, Harbin, 150081, Heilongjiang, China.
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21
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Regué L, Wang W, Ji F, Avruch J, Wang H, Dai N. Human T2D-Associated Gene IMP2/IGF2BP2 Promotes the Commitment of Mesenchymal Stem Cells Into Adipogenic Lineage. Diabetes 2023; 72:33-44. [PMID: 36219823 PMCID: PMC9797317 DOI: 10.2337/db21-1087] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 10/06/2022] [Indexed: 01/19/2023]
Abstract
Excessive adiposity is the main cause of obesity and type two diabetes (T2D). Variants in human IMP2/IGF2BP2 gene are associated with increased risk of T2D. However, little is known about its role in adipogenesis and in insulin resistance. Here, we investigate the function of IMP2 during adipocyte development. Mice with Imp2 deletion in mesenchymal stem cells (MSC) are resistant to diet-induced obesity without glucose and insulin tolerance affected. Imp2 is essential for the early commitment of adipocyte-derived stem cells (ADSC) into preadipocytes, but the deletion of Imp2 in MSC is not required for the proliferation and terminal differentiation of committed preadipocytes. Mechanistically, Imp2 binds Wnt receptor Fzd8 mRNA and promotes its degradation by recruiting CCR4-NOT deadenylase complex in an mTOR-dependent manner. Our data demonstrate that Imp2 is required for maintaining white adipose tissue homeostasis through controlling mRNA stability in ADSC. However, the contribution of IMP2 to insulin resistance, a main risk of T2D, is not evident.
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Affiliation(s)
- Laura Regué
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA
- Diabetes Unit of the Medical Services, Massachusetts General Hospital, Boston, MA
- Department of Medicine, Harvard Medical School, Boston, MA
| | - William Wang
- The Lundquist Institute, Torrance, CA
- David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA
| | - Fei Ji
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA
- Department of Medicine, Harvard Medical School, Boston, MA
| | - Joseph Avruch
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA
- Diabetes Unit of the Medical Services, Massachusetts General Hospital, Boston, MA
- Department of Medicine, Harvard Medical School, Boston, MA
| | - Hua Wang
- The Lundquist Institute, Torrance, CA
- David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA
| | - Ning Dai
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA
- Diabetes Unit of the Medical Services, Massachusetts General Hospital, Boston, MA
- Department of Medicine, Harvard Medical School, Boston, MA
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22
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Zhou Z, Chen S, Wu T, Chen Y, Cao Y, Huang Y, Liu D. IGF2BP2, an RNA-binding protein regulates cell proliferation and osteogenic differentiation by stabilizing SRF mRNA. J Cell Physiol 2023; 238:195-209. [PMID: 36436184 DOI: 10.1002/jcp.30919] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 10/26/2022] [Accepted: 11/10/2022] [Indexed: 11/28/2022]
Abstract
Osteoblast proliferation and osteogenic differentiation (OGD) are regulated by complex mechanisms. The roles in cell proliferation and OGD of RNA-binding proteins in the insulin-like growth factor 2 mRNA-binding protein (IGF2BP) family remain unclear. To elucidate this, we examined the differential expression of IGF2BP2 in OGD and osteoporosis, and the expression profile of IGF2BP2-binding RNA in vitro. We screened the GEO database for differential expression of IGF2BP in OGD and osteoporosis, and verified the RNAs interacting with IGF2BP2 via RNA immunoprecipitation sequencing assays. The proliferation and OGD of IGF2BP2- and serum response factor (SRF)-treated cells, and their regulatory mechanisms, were examined. IGF2BP2 was differentially expressed in OGD and osteoporosis. The RNA immunoprecipitation sequencing assay identified all of the RNAs that bind with IGF2BP2, and revealed SRF as a target of IGF2BP2. IGF2BP2 and SRF inhibition impaired MC3T3-E1 cell growth but promoted OGD. The mRNA stability analysis revealed that IGF2BP2 enhanced SRF mRNA stability against degradation. In summary, IGF2BP2 is a potential biomarker and therapeutic target for osteoporosis and OGD.
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Affiliation(s)
- Zimo Zhou
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Senxiang Chen
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Tong Wu
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yifeng Chen
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yuxiao Cao
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Ying Huang
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Da Liu
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
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23
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Liu S, Zhou C, Meng G, Wan T, Tang M, Yang C, Murphy RW, Fan Z, Liu Y, Zeng T, Zhao Y, Liu S. Evolution and diversification of Mountain voles (Rodentia: Cricetidae). Commun Biol 2022; 5:1417. [PMID: 36572770 PMCID: PMC9792541 DOI: 10.1038/s42003-022-04371-z] [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: 03/05/2022] [Accepted: 12/13/2022] [Indexed: 12/27/2022] Open
Abstract
The systematics of the Cricetid genus Neodon have long been fraught with uncertainty due to sampling issues and a lack of comprehensive datasets. To gain better insights into the phylogeny and evolution of Neodon, we systematically sampled Neodon across the Hengduan and Himalayan Mountains, which cover most of its range in China. Analyses of skulls, teeth, and bacular structures revealed 15 distinct patterns corresponding to 15 species of Neodon. In addition to morphological analyses, we generated a high-quality reference genome for the mountain vole and generated whole-genome sequencing data for 47 samples. Phylogenomic analyses supported the recognition of six new species, revealing a long-term underestimation of Neodon diversity. We further identified positively selected genes potentially related to high-elevation adaptation. Together, our results illuminate how climate change caused the plateau to become the centre of Neodon origin and diversification and how mountain voles have adapted to the hypoxic high-altitude plateau environment.
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Affiliation(s)
- Shaoying Liu
- grid.464457.00000 0004 0445 3867Sichuan Academy of Forestry, No.18, Xinhui xilu, Chengdu, 610081 China
| | - Chengran Zhou
- grid.21155.320000 0001 2034 1839BGI-Shenzhen, Shenzhen, 518083 China ,grid.13291.380000 0001 0807 1581Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065 China
| | - Guanliang Meng
- grid.452935.c0000 0001 2216 5875Zoological Research Museum Alexander Koenig, D-53113 Bonn, Germany
| | - Tao Wan
- grid.464457.00000 0004 0445 3867Sichuan Academy of Forestry, No.18, Xinhui xilu, Chengdu, 610081 China
| | - Mingkun Tang
- grid.464457.00000 0004 0445 3867Sichuan Academy of Forestry, No.18, Xinhui xilu, Chengdu, 610081 China
| | - Chentao Yang
- grid.21155.320000 0001 2034 1839BGI-Shenzhen, Shenzhen, 518083 China
| | - Robert W. Murphy
- Reptilia Sanctuary and Education Centre, Concord, ON L4K 2N6 Canada ,grid.421647.20000 0001 2197 9375Centre for Biodiversity and Conservation Biology, Royal Ontario Museum, Toronto, ON M5S 2C6 Canada
| | - Zhenxin Fan
- grid.13291.380000 0001 0807 1581Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065 China
| | - Yang Liu
- grid.464457.00000 0004 0445 3867Sichuan Academy of Forestry, No.18, Xinhui xilu, Chengdu, 610081 China
| | - Tao Zeng
- grid.13291.380000 0001 0807 1581Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065 China
| | - Yun Zhao
- grid.13291.380000 0001 0807 1581Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065 China
| | - Shanlin Liu
- grid.22935.3f0000 0004 0530 8290Department of Entomology, College of Plant Protection, China Agricultural University, Beijing, 100193 China
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24
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SIRT7 suppresses energy expenditure and thermogenesis by regulating brown adipose tissue functions in mice. Nat Commun 2022; 13:7439. [PMID: 36509749 PMCID: PMC9744749 DOI: 10.1038/s41467-022-35219-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 11/23/2022] [Indexed: 12/14/2022] Open
Abstract
Brown adipose tissue plays a central role in the regulation of the energy balance by expending energy to produce heat. NAD+-dependent deacylase sirtuins have widely been recognized as positive regulators of brown adipose tissue thermogenesis. However, here we reveal that SIRT7, one of seven mammalian sirtuins, suppresses energy expenditure and thermogenesis by regulating brown adipose tissue functions. Whole-body and brown adipose tissue-specific Sirt7 knockout mice have higher body temperature and energy expenditure. SIRT7 deficiency increases the protein level of UCP1, a key regulator of brown adipose tissue thermogenesis. Mechanistically, we found that SIRT7 deacetylates insulin-like growth factor 2 mRNA-binding protein 2, an RNA-binding protein that inhibits the translation of Ucp1 mRNA, thereby enhancing its inhibitory action on Ucp1. Furthermore, SIRT7 attenuates the expression of batokine genes, such as fibroblast growth factor 21. In conclusion, we propose that SIRT7 serves as an energy-saving factor by suppressing brown adipose tissue functions.
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25
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Wu EY, Huang LP, Bao JH. miR-96-5p regulates cervical cancer cell resistance to cisplatin by inhibiting lncRNA TRIM52-AS1 and promoting IGF2BP2. Kaohsiung J Med Sci 2022; 38:1178-1189. [PMID: 36354205 DOI: 10.1002/kjm2.12593] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 08/02/2022] [Accepted: 08/16/2022] [Indexed: 11/11/2022] Open
Abstract
MicroRNA (miRNA) and long noncoding RNA (lncRNA) are both regulators of cancer progression. This study sought to discuss the functional mechanism of miR-96-5p/lncRNA TRIM52 antisense RNA 1 (head-to-head; TRIM52-AS1) in cervical cancer (CC) cell resistance to cisplatin (DDP). DDP-resistant CC cell line was established using increasing concentrations of DDP, followed by transfection with miR-96-5p inhibitor, or si-TRIM52-AS1, or insulin-like growth factor 2 mRNA binding protein 2 (IGF2BP2) overexpression vector. Expression levels of miR-96-5p, TRIM52-AS1, and IGF2BP2 were determined. Changes in IC50 value to DDP, cell proliferation, and apoptosis rate were evaluated by cell-counting kit-8 assay, colony formation, and flow cytometry. The bindings of miR-96-5p to IGF2BP2 and TRIM52-AS1 to IGF2BP2 were verified by dual-luciferase or RNA pull-down assays. These experiments revealed an up-expression of miR-96-5p and IGF2BP2 while an under-expression of TRIM52-AS1 in CC cells. After DDP treatment, miR-96-5p inhibition increased apoptosis and decreased proliferation and DDP resistance. miR-96-5p bound to TRIM52-AS1 and downregulated TRIM52-AS1 expression, and TRIM52-AS1 bound to IGF2BP2 to inhibit IGF2BP2 expression. TRIM52-AS1 inhibition or IGF2BP2 overexpression neutralized the inhibition of silencing miR-96-5p on CC cell resistance to DDP. Overall, miR-96-5p improved CC cell resistance to DDP by inhibiting TRIM52-AS1 and promoting IGF2BP2.
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Affiliation(s)
- En Yuesu Wu
- Department of Gynecology II, Affiliated Hospital of Inner Mongolia Minzu University, Tongliao, Inner Mongolia, China
| | - Li-Ping Huang
- Department of Gynecology II, Affiliated Hospital of Inner Mongolia Minzu University, Tongliao, Inner Mongolia, China
| | - Jin-Hua Bao
- Department of Gynecology II, Affiliated Hospital of Inner Mongolia Minzu University, Tongliao, Inner Mongolia, China
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26
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Zeng Y, Wu Y, Zhang Q, Xiao X. Non-coding RNAs: The link between maternal malnutrition and offspring metabolism. Front Nutr 2022; 9:1022784. [DOI: 10.3389/fnut.2022.1022784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 10/27/2022] [Indexed: 11/11/2022] Open
Abstract
Early life nutrition is associated with the development and metabolism in later life, which is known as the Developmental Origin of Health and Diseases (DOHaD). Epigenetics have been proposed as an important explanation for this link between early life malnutrition and long-term diseases. Non-coding RNAs (ncRNAs) may play a role in this epigenetic programming. The expression of ncRNAs (such as long non-coding RNA H19, microRNA-122, and circular RNA-SETD2) was significantly altered in specific tissues of offspring exposed to maternal malnutrition. Changes in these downstream targets of ncRNAs lead to abnormal development and metabolism. This review aims to summarize the existing knowledge on ncRNAs linking the maternal nutrition condition and offspring metabolic diseases, such as obesity, type 2 diabetes (T2D) and non-alcoholic fatty liver disease (NAFLD).
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27
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Yang J, Qian X, Qiu Q, Xu L, Pan M, Li J, Ren J, Lu B, Qiu T, Chen E, Ying K, Zhang H, Lu Y, Liu P. LCAT1 is an oncogenic LncRNA by stabilizing the IGF2BP2-CDC6 axis. Cell Death Dis 2022; 13:877. [PMID: 36257938 PMCID: PMC9579176 DOI: 10.1038/s41419-022-05316-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/27/2022] [Accepted: 09/30/2022] [Indexed: 12/02/2022]
Abstract
Long non-coding RNAs (lncRNAs) is known to play vital roles in modulating tumorigenesis. We previously reported that LCAT1, a novel lncRNA, promotes the growth and metastasis of lung cancer cells both in vitro and in vivo. However, the underlying mechanism(s) of LCAT1 as an oncogenic regulator remains elusive. Here, we showed that LCAT1 physically interacts with and stabilizes IGF2BP2, an m6A reader protein, by preventing its degradation via autolysosomes. IGF2BP2 is overexpressed in lung cancer tissues, which is associated with poor survival of non-small cell lung cancer patients, suggesting its oncogenic role. Biologically, IGF2BP2 depletion inhibits growth and survival as well as the migration of lung cancer cells. Mechanistically, the LCAT1/IGF2BP2 complex increased the levels of CDC6, a key cell cycle regulator, by stabilizing its mRNA in an m6A-dependent manner. Like IGF2BP2, CDC6 is also overexpressed in lung cancer tissues with poor patient survival, and CDC6 knockdown has oncogenic inhibitory activity. Taken together, the LCAT1-IGF2BP2-CDC6 axis appears to play a vital role in promoting the growth and migration of lung cancer cells, and is a potential therapeutic target for lung cancer. Importantly, our finding also highlights a previously unknown critical role of LCAT1 in m6A-dependent gene regulation by preventing autolytic degradation of IGF2BP2.
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Affiliation(s)
- Juze Yang
- grid.13402.340000 0004 1759 700XDepartment of Respiratory Medicine, Sir Run Run Shaw Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016 China
| | - Xinyi Qian
- grid.13402.340000 0004 1759 700XDepartment of Respiratory Medicine, Sir Run Run Shaw Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016 China
| | - Qiongzi Qiu
- grid.13402.340000 0004 1759 700XZhejiang Provincial Key Laboratory of Precision Diagnosis and Therapy for Major Gynecological Diseases, Center for Uterine Cancer Diagnosis & Therapy Research of Zhejiang Province, Department of Gynecologic Oncology, Women’s Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310006 China
| | - Lingling Xu
- grid.13402.340000 0004 1759 700XDepartment of Respiratory Medicine, Sir Run Run Shaw Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016 China
| | - Meidie Pan
- grid.13402.340000 0004 1759 700XDepartment of Respiratory Medicine, Sir Run Run Shaw Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016 China
| | - Jia Li
- grid.13402.340000 0004 1759 700XDepartment of Respiratory Medicine, Sir Run Run Shaw Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016 China
| | - Jiayi Ren
- grid.13402.340000 0004 1759 700XDepartment of Respiratory Medicine, Sir Run Run Shaw Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016 China
| | - Bingjian Lu
- grid.13402.340000 0004 1759 700XZhejiang Provincial Key Laboratory of Precision Diagnosis and Therapy for Major Gynecological Diseases, Center for Uterine Cancer Diagnosis & Therapy Research of Zhejiang Province, Department of Gynecologic Oncology, Women’s Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310006 China
| | - Ting Qiu
- grid.13402.340000 0004 1759 700XDepartment of Respiratory Medicine, Sir Run Run Shaw Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016 China
| | - Enguo Chen
- grid.13402.340000 0004 1759 700XDepartment of Respiratory Medicine, Sir Run Run Shaw Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016 China
| | - Kejing Ying
- grid.13402.340000 0004 1759 700XDepartment of Respiratory Medicine, Sir Run Run Shaw Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016 China
| | - Honghe Zhang
- grid.13402.340000 0004 1759 700XDepartment of Pathology, Research Unit of Intelligence Classification of Tumor Pathology and Precision Therapy, Chinese Academy of Medical Sciences, Zhejiang University School of Medicine, Hangzhou, 310058 Zhejiang China ,grid.13402.340000 0004 1759 700XCancer center, Zhejiang University, Hangzhou, Zhejiang 310013 China
| | - Yan Lu
- grid.13402.340000 0004 1759 700XZhejiang Provincial Key Laboratory of Precision Diagnosis and Therapy for Major Gynecological Diseases, Center for Uterine Cancer Diagnosis & Therapy Research of Zhejiang Province, Department of Gynecologic Oncology, Women’s Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310006 China ,grid.13402.340000 0004 1759 700XCancer center, Zhejiang University, Hangzhou, Zhejiang 310013 China
| | - Pengyuan Liu
- grid.13402.340000 0004 1759 700XDepartment of Respiratory Medicine, Sir Run Run Shaw Hospital and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016 China ,grid.13402.340000 0004 1759 700XCancer center, Zhejiang University, Hangzhou, Zhejiang 310013 China ,grid.30760.320000 0001 2111 8460Department of Physiology and Center of Systems Molecular Medicine, Medical College of Wisconsin, Milwaukee, WI USA
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Melnik BC, Schmitz G. Milk Exosomal microRNAs: Postnatal Promoters of β Cell Proliferation but Potential Inducers of β Cell De-Differentiation in Adult Life. Int J Mol Sci 2022; 23:ijms231911503. [PMID: 36232796 PMCID: PMC9569743 DOI: 10.3390/ijms231911503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/15/2022] [Accepted: 09/20/2022] [Indexed: 11/16/2022] Open
Abstract
Pancreatic β cell expansion and functional maturation during the birth-to-weaning period is driven by epigenetic programs primarily triggered by growth factors, hormones, and nutrients provided by human milk. As shown recently, exosomes derived from various origins interact with β cells. This review elucidates the potential role of milk-derived exosomes (MEX) and their microRNAs (miRs) on pancreatic β cell programming during the postnatal period of lactation as well as during continuous cow milk exposure of adult humans to bovine MEX. Mechanistic evidence suggests that MEX miRs stimulate mTORC1/c-MYC-dependent postnatal β cell proliferation and glycolysis, but attenuate β cell differentiation, mitochondrial function, and insulin synthesis and secretion. MEX miR content is negatively affected by maternal obesity, gestational diabetes, psychological stress, caesarean delivery, and is completely absent in infant formula. Weaning-related disappearance of MEX miRs may be the critical event switching β cells from proliferation to TGF-β/AMPK-mediated cell differentiation, whereas continued exposure of adult humans to bovine MEX miRs via intake of pasteurized cow milk may reverse β cell differentiation, promoting β cell de-differentiation. Whereas MEX miR signaling supports postnatal β cell proliferation (diabetes prevention), persistent bovine MEX exposure after the lactation period may de-differentiate β cells back to the postnatal phenotype (diabetes induction).
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Affiliation(s)
- Bodo C. Melnik
- Department of Dermatology, Environmental Medicine and Health Theory, University of Osnabrück, D-49076 Osnabrück, Germany
- Correspondence: ; Tel.: +49-52-4198-8060
| | - Gerd Schmitz
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital of Regensburg, University of Regensburg, D-93053 Regensburg, Germany
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29
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Wu K, Chang F, Li W, Su T, Lei D. Role of IGF2BPs in head and neck squamous cell carcinoma. Front Oncol 2022; 12:1003808. [PMID: 36237306 PMCID: PMC9552850 DOI: 10.3389/fonc.2022.1003808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 09/07/2022] [Indexed: 12/24/2022] Open
Abstract
IGF2BPs belongs to a family of conserved RNA-bound oncoembryonic proteins that play a crucial part in various aspects of cell function, such as cell migration, morphology, metabolism, proliferation and differentiation. Recent studies have shown that IGF2BPs play a role as a member of m6A reader. m6A is the most abundant modification in RNA epigenetics, which is closely related to a family of RNA-binding proteins. These proteins are fell into three categories—writers, readers and erasers. In the present study, IGF2BPs play an important role in tumor metabolism, especially in head and neck squamous cell carcinoma (HNSCC) metabolism. In this paper, the basic structure of IGF2BPs, its role in the development of HNSCC, molecular mechanism, research progress and research prospect of IGF2BPs in HNSCC are reviewed, which will providing new ideas for further study of IGF2BPs.
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Affiliation(s)
- Kainan Wu
- Key Laboratory of Otolaryngology, NHFPC (Shandong University), Shandong, China
- Department of Otorhinolaryngology, Qilu Hospital, Shandong University, Shandong, China
| | - Fen Chang
- Key Laboratory of Otolaryngology, NHFPC (Shandong University), Shandong, China
- Department of Otorhinolaryngology, Qilu Hospital, Shandong University, Shandong, China
| | - Wenming Li
- Key Laboratory of Otolaryngology, NHFPC (Shandong University), Shandong, China
- Department of Otorhinolaryngology, Qilu Hospital, Shandong University, Shandong, China
| | - Tongdong Su
- Key Laboratory of Otolaryngology, NHFPC (Shandong University), Shandong, China
- Department of Otorhinolaryngology, Qilu Hospital, Shandong University, Shandong, China
| | - Dapeng Lei
- Key Laboratory of Otolaryngology, NHFPC (Shandong University), Shandong, China
- Department of Otorhinolaryngology, Qilu Hospital, Shandong University, Shandong, China
- *Correspondence: Dapeng Lei,
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30
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Ran Y, Chen R, Huang D, Qin Y, Liu Z, He J, Mei Y, Zhou Y, Yin N, Qi H. The landscape of circular RNA in preterm birth. Front Immunol 2022; 13:879487. [PMID: 36072601 PMCID: PMC9441874 DOI: 10.3389/fimmu.2022.879487] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 08/03/2022] [Indexed: 12/24/2022] Open
Abstract
Background Preterm birth (PTB) is a multifactorial syndrome that seriously threatens the health of pregnant women and babies worldwide. Recently, circular RNAs (circRNAs) have been understood as important regulators of various physiological and pathological processes. However, the expression pattern and potential roles of circRNAs in PTB are largely unclear. Methods In this study, we extracted and analyzed the circRNA expression profiles in maternal and fetal samples of preterm and term pregnancies, including maternal plasma, maternal monocytes, myometrium, chorion, placenta, and cord blood. We identified the circRNAs which is associated with PTB in different tissues and explored their relationships from the perspective of the overall maternal-fetal system. Furthermore, co-expression analysis of circRNAs and mRNAs, target microRNAs (miRNAs), and RNA-binding proteins (RBPs), provided new clues about possible mechanisms of circRNA function in PTB. In the end, we investigated the potential special biofunctions of circRNAs in different tissues and their common features and communication in PTB. Results Significant differences in circRNA types and expression levels between preterm and term groups have been proved, as well as between tissues. Nevertheless, there were still some PTB-related differentially expressed circRNAs (DECs) shared by these tissues. The functional enrichment analysis showed that the DECs putatively have important tissue-specific biofunctions through their target miRNA and co-expressed mRNAs, which contribute to the signature pathologic changes of each tissue within the maternal-fetal system in PTB (e.g., the contraction of the myometrium). Moreover, DECs in different tissues might have some common biological activities, which are mainly the activation of immune-inflammatory processes (e.g., interleukin1/6/8/17, chemokine, TLRs, and complement). Conclusions In summary, our data provide a preliminary blueprint for the expression and possible roles of circRNAs in PTB, which lays the foundation for future research on the mechanisms of circRNAs in PTB.
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Affiliation(s)
- Yuxin Ran
- Women and Children’s Hospital of Chongqing Medical University (Chongqing Health Center for Women and Children), Chongqing, China
- Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China
- Joint International Research Laboratory of Reproduction and Development of Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
| | - Ruixin Chen
- Department of Gynecology and Obstetrics, West China Second Hospital, Sichuan University, Chengdu, China
| | - Dongni Huang
- Women and Children’s Hospital of Chongqing Medical University (Chongqing Health Center for Women and Children), Chongqing, China
- Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China
| | - Yan Qin
- Department of Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zheng Liu
- Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China
- Joint International Research Laboratory of Reproduction and Development of Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jie He
- Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China
- Joint International Research Laboratory of Reproduction and Development of Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Youwen Mei
- Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China
- Joint International Research Laboratory of Reproduction and Development of Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yunqian Zhou
- Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China
- Joint International Research Laboratory of Reproduction and Development of Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Nanlin Yin
- Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China
- Joint International Research Laboratory of Reproduction and Development of Chinese Ministry of Education, Chongqing Medical University, Chongqing, China
- Center for Reproductive Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- *Correspondence: Nanlin Yin, ; Hongbo Qi,
| | - Hongbo Qi
- Women and Children’s Hospital of Chongqing Medical University (Chongqing Health Center for Women and Children), Chongqing, China
- Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China
- *Correspondence: Nanlin Yin, ; Hongbo Qi,
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31
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RNA-Binding Proteins in the Regulation of Adipogenesis and Adipose Function. Cells 2022; 11:cells11152357. [PMID: 35954201 PMCID: PMC9367552 DOI: 10.3390/cells11152357] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 07/28/2022] [Accepted: 07/29/2022] [Indexed: 01/27/2023] Open
Abstract
The obesity epidemic represents a critical public health issue worldwide, as it is a vital risk factor for many diseases, including type 2 diabetes (T2D) and cardiovascular disease. Obesity is a complex disease involving excessive fat accumulation. Proper adipose tissue accumulation and function are highly transcriptional and regulated by many genes. Recent studies have discovered that post-transcriptional regulation, mainly mediated by RNA-binding proteins (RBPs), also plays a crucial role. In the lifetime of RNA, it is bound by various RBPs that determine every step of RNA metabolism, from RNA processing to alternative splicing, nucleus export, rate of translation, and finally decay. In humans, it is predicted that RBPs account for more than 10% of proteins based on the presence of RNA-binding domains. However, only very few RBPs have been studied in adipose tissue. The primary aim of this paper is to provide an overview of RBPs in adipogenesis and adipose function. Specifically, the following best-characterized RBPs will be discussed, including HuR, PSPC1, Sam68, RBM4, Ybx1, Ybx2, IGF2BP2, and KSRP. Characterization of these proteins will increase our understanding of the regulatory mechanisms of RBPs in adipogenesis and provide clues for the etiology and pathology of adipose-tissue-related diseases.
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32
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Igf2bp2 knockdown improves CCl 4-induced liver fibrosis and TGF-β-activated mouse hepatic stellate cells by regulating Tgfbr1. Int Immunopharmacol 2022; 110:108987. [PMID: 35820364 DOI: 10.1016/j.intimp.2022.108987] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 06/12/2022] [Accepted: 06/17/2022] [Indexed: 01/18/2023]
Abstract
Progressive liver fibrosis is a dynamic process characterized by the net accumulation of extracellular matrix (ECM), which could eventually develop into cirrhosis, leading to malignant transformation. In this study, insulin-like growth factor 2 mRNA binding protein 2 (Igf2bp2) was found to be up-regulated in carbon tetrachloride (CCl4)-induced liver fibrosis and transforming growth factor-beta 1 (TGF-β)-activated hepatic stellate cells (HSCs). Igf2bp2 knockdown in the CCl4-induced hepatic fibrosis mice model significantly improved CCl4-induced liver damage by decreasing necrosis and fibrotic septa, reducing hydroxyproline levels, and down-regulating fibrotic markers levels. In TGF-β-activated HSCs, Igf2bp2 knockdown partially attenuated TGF-β-induced cellular effects by suppressing HSCs viability and DNA synthesis and reducing the ECM-associated factors such as α-SMA, COLLAGEN I, and COLLAGEN III. Integrative network and signaling analysis revealed that the Igf2bp2 could bind to Tgfbr1. Transforming growth factor-beta receptor 1 (Tgfbr1) was found to be significantly up-regulated in the fibrotic liver and activated HSCs, and positively correlated with Igf2bp2. Tgfbr1 knockdown partially eliminated TGF-β-induced fibrotic changes and Igf2bp2 overexpression effects on TGF-β-activated HSCs in vitro. Moreover, Igf2bp2 overexpression promoted the phosphorylation of SMAD2/SMAD3, AKT, and PI3K, whereas Tgfbr1 knockdown exhibited the opposite effect; Tgfbr1 knockdown also partially attenuated the effects of Igf2bp2 overexpression on the phosphorylation of SMAD2/SMAD3, AKT, and PI3K. In closing, Igf2bp2 and Tgfbr1 are up-regulated in CCl4-induced liver fibrosis and TGF-β-activated mHSCs. Igf2bp2 knockdown improved CCl4-induced liver fibrosis and TGF-β-activated HSCs by targeting Tgfbr1, possibly through the PI3K/Akt pathway.
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33
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Wang D, Li Y, Xu X, Zhao S, Wang Z, Yang J, Zhang X, Pan J, Wang Y, Liu M. FTO knockdown alleviates hypoxia-induced PC12 cell injury by stabilizing GADD45B in an IGF2BP2-dependent manner. Biochem Biophys Res Commun 2022; 619:166-172. [DOI: 10.1016/j.bbrc.2022.06.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/06/2022] [Accepted: 06/12/2022] [Indexed: 11/24/2022]
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34
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Zhang Z, Xing Y, Gao W, Yang L, Shi J, Song W, Li T. N 6-methyladenosine (m 6A) reader IGF2BP2 promotes gastric cancer progression via targeting SIRT1. Bioengineered 2022; 13:11541-11550. [PMID: 35502827 PMCID: PMC9275927 DOI: 10.1080/21655979.2022.2068920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
N6-methyladenosine (m6A) modification acts as the most prevalent internal modification in eukaryotic mRNA. Emerging evidence shows the critical biological roles of m6A key enzymes in human cancers. However, the roles of m6A binding protein IGF2BP2 in gastric cancer (GC) progression are still unclear. In this study, we confirmed that IGF2BP2 was highly expressed in GC cell lines and tumor tissues. Knocking down of IGF2BP2 suppressed cell proliferation and migration, and repressed xenograft tumor growth in vivo, while IGF2BP2 overexpression promoted the proliferation and migration. Mechanistically, we identified that IGF2BP2 regulated GC the proliferation/migration through recognizing the m6A modification sites of SIRT1 mRNA. In general, our findings demonstrated a novel regulatory mechanism that IGF2BP2/SIRT1 axis modulated GC progression in an m6A-dependent manner, suggesting that m6A may be a therapeutic target for GC.
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Affiliation(s)
- Zili Zhang
- Department of Gastrointestinal Surgery, The Third Central Clinical College of Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China.,Artificial Cell Engineering Technology Research Center, Tianjin, China.,Tianjin Institute of Hepatobiliary Disease, Tianjin, China
| | - Yu Xing
- Department of Gastrointestinal Surgery, The Third Central Clinical College of Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China.,Artificial Cell Engineering Technology Research Center, Tianjin, China.,Tianjin Institute of Hepatobiliary Disease, Tianjin, China
| | - Wenqing Gao
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China.,Artificial Cell Engineering Technology Research Center, Tianjin, China.,Tianjin Institute of Hepatobiliary Disease, Tianjin, China.,Department of Cardiac Center, The Third Central Clinical College of Tianjin Medical University, Tianjin, China
| | - Liping Yang
- Department of Gastrointestinal Surgery, The Third Central Clinical College of Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China.,Artificial Cell Engineering Technology Research Center, Tianjin, China.,Tianjin Institute of Hepatobiliary Disease, Tianjin, China
| | - Junzhong Shi
- Department of Gastrointestinal Surgery, The Third Central Clinical College of Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China.,Artificial Cell Engineering Technology Research Center, Tianjin, China.,Tianjin Institute of Hepatobiliary Disease, Tianjin, China
| | - Weiliang Song
- Department of Gastrointestinal Surgery, The Third Central Clinical College of Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China.,Artificial Cell Engineering Technology Research Center, Tianjin, China.,Tianjin Institute of Hepatobiliary Disease, Tianjin, China
| | - Tong Li
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China.,Artificial Cell Engineering Technology Research Center, Tianjin, China.,Tianjin Institute of Hepatobiliary Disease, Tianjin, China.,Department of Cardiac Center, The Third Central Clinical College of Tianjin Medical University, Tianjin, China
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35
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Zhou L, Li H, Cai H, Liu W, Pan E, Yu D, He S. Upregulation of IGF2BP2 Promotes Oral Squamous Cell Carcinoma Progression That Is Related to Cell Proliferation, Metastasis and Tumor-Infiltrating Immune Cells. Front Oncol 2022; 12:809589. [PMID: 35299748 PMCID: PMC8921988 DOI: 10.3389/fonc.2022.809589] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 01/31/2022] [Indexed: 12/21/2022] Open
Abstract
The strong invasive and metastatic abilities of oral squamous cell carcinoma (OSCC) cells in the early stage are the main reason for its poor prognosis. The early diagnosis and treatment of OSCC may reduce the metastasis rate and improve the survival rate. The aim of this study was to explore candidate biomarkers related to the prognosis and progression of OSCC. We performed weighted gene coexpression network analysis to identify key modules and genes associated with OSCC and intersected the differentially expressed genes (DEGs) in The Cancer Genome Atlas (TCGA)-OSCC and GSE30784 datasets. Next, we performed survival analysis and immunohistochemistry to screen and validate the hub gene insulin-like growth factor 2 (IGF2) mRNA binding protein 2 IGF2BP2. We also used TCGA pan-cancer data to verify that IGF2BP2 was expressed at high levels in a variety of cancers and was related to a poor prognosis in patients. Furthermore, we divided patients with OSCC into high and low expression groups based on the median expression level of IGF2BP2. Gene set enrichment analysis (GSEA) showed that IGF2BP2 led to a poor prognosis in OSCC by affecting cancer-related (epithelial-mesenchymal transition, glycolysis, cell cycle, etc.) and immune-related biological functions and pathways. Single-sample GSEA (ssGSEA), CIBERSORT, and xCell algorithms helped reveal that high IGF2BP2 expression was accompanied by a significant reduction in the immune score, stromal score, and microenvironment score and a decrease in the number of infiltrating CD8+ T cells in OSCC. In addition, silencing IGF2BP2 suppressed the proliferation, migration, and invasion of OSCC cells. In general, IGF2BP2 is a potential biomarker for the progression, immunotherapy response, and prognosis of OSCC.
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Affiliation(s)
- Lijie Zhou
- Department of Stomatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Hongyu Li
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Hongshi Cai
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Wenhui Liu
- Department of Stomatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Enjiu Pan
- Department of Stomatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Dongsheng Yu
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China.,Department of Oral Emergency, Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Shuai He
- Department of Stomatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
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36
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Yao MD, Jiang Q, Ma Y, Zhu Y, Zhang QY, Shi ZH, Zhao C, Yan B. Targeting circular RNA-MET for anti-angiogenesis treatment via inhibiting endothelial tip cell specialization. Mol Ther 2022; 30:1252-1264. [PMID: 34999209 PMCID: PMC8899597 DOI: 10.1016/j.ymthe.2022.01.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/21/2021] [Accepted: 01/05/2022] [Indexed: 10/19/2022] Open
Abstract
Endothelial tip cell specialization plays an essential role in angiogenesis, which is tightly regulated by the complicated gene regulatory network. Circular RNA (circRNA) is a type of covalently closed non-coding RNA that regulates gene expression in eukaryotes. Here, we report that the levels of circMET expression are significantly upregulated in the retinas of mice with oxygen-induced retinopathy, choroidal neovascularization, and diabetic retinopathy. circMET silencing significantly reduces pathological angiogenesis and inhibits tip cell specialization in vivo. circMET silencing also decreases endothelial migration and sprouting in vitro. Mechanistically, circMET regulates endothelial sprouting and pathological angiogenesis by acting as a scaffold to enhance the interaction between IGF2BP2 and NRARP/ESM1. Clinically, circMET is significantly upregulated in the clinical samples of the patients of diabetic retinopathy. circMET silencing could reduce diabetic vitreous-induced endothelial sprouting and retinal angiogenesis in vivo. Collectively, these data identify a circRNA-mediated mechanism that coordinates tip cell specialization and pathological angiogenesis. circMET silencing is an exploitable therapeutic approach for the treatment of neovascular diseases.
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Affiliation(s)
- Mu-Di Yao
- Eye Institute, Eye & ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China,NHC Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China,Shanghai Key Laboratory of Visual Impairment and Restoration (Fudan University), Shanghai, China
| | - Qin Jiang
- The Affiliated Eye Hospital, Nanjing Medical University, Nanjing, China,The Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, China
| | - Yan Ma
- The Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, China
| | - Yan Zhu
- The Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, China
| | - Qiu-Yang Zhang
- The Affiliated Eye Hospital, Nanjing Medical University, Nanjing, China,The Fourth School of Clinical Medicine, Nanjing Medical University, Nanjing, China
| | - Ze-Hui Shi
- Eye Institute, Eye & ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China,NHC Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
| | - Chen Zhao
- Eye Institute, Eye & ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Biao Yan
- Eye Institute, Eye & ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China; NHC Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China; Shanghai Key Laboratory of Visual Impairment and Restoration (Fudan University), Shanghai, China.
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37
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The role of genetic modifiers, inflammation and CFTR in the pathogenesis of Cystic fibrosis related diabetes. J Clin Transl Endocrinol 2022; 27:100287. [PMID: 34976741 PMCID: PMC8688704 DOI: 10.1016/j.jcte.2021.100287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 11/11/2021] [Accepted: 11/27/2021] [Indexed: 11/20/2022] Open
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38
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Schymik HS, Dahlem C, Barghash A, Kiemer AK. Comment on: The m6A Reader IGF2BP2 Regulates Macrophage Phenotypic Activation and Inflammatory Diseases by Stabilizing TSC1 and PPARγ. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2104372. [PMID: 35038236 PMCID: PMC8922093 DOI: 10.1002/advs.202104372] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 12/04/2021] [Indexed: 05/08/2023]
Abstract
Recently, first insights into the regulation and the role of the RNA-binding protein IMP2 in macrophage activation have been published by Wang et al. This study addresses differences in the regulation of IMP2 between the human and murine system. While the expression of IMP2 in anti-inflammatory macrophages is synchronous in mice and men, IMP2 expression is regulated differently in inflammatory macrophages.
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Affiliation(s)
- Hanna S. Schymik
- Department of PharmacyPharmaceutical BiologySaarland UniversitySaarbruecken66123Germany
| | - Charlotte Dahlem
- Department of PharmacyPharmaceutical BiologySaarland UniversitySaarbruecken66123Germany
| | - Ahmad Barghash
- School of Electrical Engineering and Information TechnologyGerman Jordanian UniversityAmman11180Jordan
| | - Alexandra K. Kiemer
- Department of PharmacyPharmaceutical BiologySaarland UniversitySaarbruecken66123Germany
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Han J, Yu X, Wang S, Wang Y, Liu Q, Xu H, Wang X. IGF2BP2 Induces U251 Glioblastoma Cell Chemoresistance by Inhibiting FOXO1-Mediated PID1 Expression Through Stabilizing lncRNA DANCR. Front Cell Dev Biol 2022; 9:659228. [PMID: 35141227 PMCID: PMC8819069 DOI: 10.3389/fcell.2021.659228] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 10/29/2021] [Indexed: 12/18/2022] Open
Abstract
Glioma is the most common type of malignant tumor of the nervous system and is characterized by high mortality and poor outcome. This study aims to investigate the mechanism underlying IGF2 mRNA-binding protein 2 (IGF2BP2) and long noncoding RNA DANCR in etoposide resistance of glioblastoma (GBM) cells. Bioinformatics analysis identified the IGF2BP2-related regulators and DANCR target genes, which were subsequently evaluated by RNA pull-down and RIP assays. We exposed GBM cells to etoposide and thus established etoposide-resistant cells. Through functional experiments, we evaluated the interrelationship among IGF2BP2, DANCR, phosphotyrosine interaction domain containing 1 (PID1), and forkhead box protein O1 (FOXO1) and further assessed their impact on the sensitivity of GBM cells to etoposide. IGF2BP2 and DANCR were highly expressed in glioma cells and tissues, whereas PID1 and FOXO1 were poorly expressed. Mechanistically, overexpression of IGF2BP2 promoted DANCR stability and reduced DANCR methylation, whereas silencing of IGF2BP2 reduced survival of GBM cells and etoposide-resistant cells. Besides, DANCR interacted with FOXO1 to promote the ubiquitination of FOXO1. FOXO1 promoted the transcriptional expression of PID1, enhancing the chemotherapy sensitivity of GBM cells, but overexpression of PID1 reversed the impact of IGF2BP2. Collectively, IGF2BP2 inhibits PID1 expression through the DANCR/FOXO1 axis, inducing drug resistance in GBM cells, and promoting glioma progression.
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Affiliation(s)
- Junfei Han
- Department of Neurosurgery, Huizhou Third People’s Hospital, Huizhou Hospital Affiliated to Guangzhou Medical University, Huizhou, China
| | - Xiaojun Yu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shanxi Wang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yingguang Wang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qikun Liu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Haoran Xu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaosong Wang
- Department of Neurosurgery, The First Hospital of Qiqihar, Qiqihar, China
- Department of Neurosurgery, Affiliated Qiqihar Hospital, Southern Medical University, Qiqihar, China
- *Correspondence: Xiaosong Wang,
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Nie K, Yi J, Yang Y, Deng M, Yang Y, Wang T, Chen X, Zhang Z, Wang X. A Broad m6A Modification Landscape in Inflammatory Bowel Disease. Front Cell Dev Biol 2022; 9:782636. [PMID: 35127705 PMCID: PMC8809481 DOI: 10.3389/fcell.2021.782636] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 12/16/2021] [Indexed: 12/20/2022] Open
Abstract
Background and Aims: N6-Methyladenosine (m6A) is the most common post-transcriptional modification on eukaryotic mRNA, affecting the mRNA’s fate. The role of m6A regulation in inflammatory bowel disease is unclear. Here, we investigated the m6A landscape in inflammatory bowel diseases (IBD). Methods: Eleven human IBD microarray datasets were recruited from the Gene Expression Omnibus database and four were selected as discovery cohorts. An RNA-seq dataset from the Inflammatory Bowel Disease Multi’omics Database was used as a validation cohort. m6A regulators were measured in volunteers’ colonic samples. Consensus clustering and immune scoring were used to estimate the characteristics of m6A regulation in IBD. m6A-related characteristics of different sub-phenotypes, sample sources, and biological therapeutic responses were determined using seven independent datasets. Results: m6A modification involves methyltransferases (writers), demethylases (erasers), and methylation-reading proteins (readers). A wide interaction exists between m6A regulators and IBD risk genes. The IBD risk loci can also be modified by m6A modifications in the public m6A sequencing data. Furthermore, m6A regulators displayed extensive differential expression in four independent discovery cohorts that share common differential genes (IGF2BP2, HNRNPA2B1, ZCCHC4, and EIF3I). In the validated cohort and enrolled volunteers’ colonic biopsy samples, the differential m6A regulators were reconfirmed. Two clusters of consensus clustering exhibit different immune phenotypes. m6A-modified positions exist in the core IBD immune cytokines. Another set of IBD datasets revealed m6A-related differences across clinical phenotypes, biological samples, and therapeutic response subgroups in IBD patients. Conclusion: Regulation of m6A methylation is widely involved in IBD occurrence and development. m6A modifications in risk variants, core cytokines, immune cells, and other proteins may deeply influence the pathophysiology and clinical phenotypes. Further studies are needed to determine its role in IBD.
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Affiliation(s)
- Kai Nie
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Cancer Research Institute, Central South University, Changsha, China
| | - Jun Yi
- Department of Gastroenterology, The Xiangya Hospital of Central South University, Changsha, China
| | - Yuanyuan Yang
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Cancer Research Institute, Central South University, Changsha, China
| | - Minzi Deng
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Cancer Research Institute, Central South University, Changsha, China
| | - Yan Yang
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Tianyu Wang
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Xuejie Chen
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Zhaoyu Zhang
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Cancer Research Institute, Central South University, Changsha, China
- Cancer Research Institute, Central South University, Changsha, China
- *Correspondence: Zhaoyu Zhang, ; Xiaoyan Wang,
| | - Xiaoyan Wang
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Cancer Research Institute, Central South University, Changsha, China
- *Correspondence: Zhaoyu Zhang, ; Xiaoyan Wang,
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Yu D, Pan M, Li Y, Lu T, Wang Z, Liu C, Hu G. RNA N6-methyladenosine reader IGF2BP2 promotes lymphatic metastasis and epithelial-mesenchymal transition of head and neck squamous carcinoma cells via stabilizing slug mRNA in an m6A-dependent manner. J Exp Clin Cancer Res 2022; 41:6. [PMID: 34980207 PMCID: PMC8722037 DOI: 10.1186/s13046-021-02212-1] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 12/05/2021] [Indexed: 12/20/2022] Open
Abstract
Background Lymph node metastasis is the main cause of poor prognosis of head and neck squamous carcinoma (HNSCC) patients. N6-methyladenosine (m6A) RNA modification is an emerging epigenetic regulatory mechanism for gene expression, and as a novel m6A reader protein, IGF2BP2 has been implicated in tumor progression and metastasis. However, not much is currently known about the functional roles of IGF2BP2 in HNSCC, and whether IGF2BP2 regulates lymphatic metastasis through m6A modification in HNSCC remains to be determined. Methods The expression and overall survival (OS) probability of m6A-related regulators in HNSCC were analyzed with The Cancer Genome Atlas (TCGA) dataset and GEPIA website tool, respectively. The expression levels of IGF2BP2 were measured in HNSCC tissues and normal adjacent tissues. To study the effects of IGF2BP2 on HNSCC cell metastasis in vitro and in vivo, gain- and loss- of function methods were employed. RIP, MeRIP, luciferase reporter and mRNA stability assays were performed to explore the epigenetic mechanism of IGF2BP2 in HNSCC. Results We investigated 20 m6A-related regulators in HNSCC and discovered that only the overexpression of IGF2BP2 was associated with a poor OS probability and an independent prognostic factor for HNSCC patients. Additionally, we demonstrated that IGF2BP2 was overexpressed in HNSCC tissues, and significantly correlated to lymphatic metastasis and poor prognosis. Functional studies have shown that IGF2BP2 promotes both HNSCC cell migration as well as invasion via the epithelial-mesenchymal transition (EMT) process in vitro, and IGF2BP2 knockdown significantly inhibited lymphatic metastasis and lymphangiogenesis in vivo. Mechanistic investigations revealed that Slug, a key EMT-related transcriptional factor, is the direct target of IGF2BP2, and essential for IGF2BP2-regulated EMT and metastasis in HNSCC. Furthermore, we demonstrated that IGF2BP2 recognizes and binds the m6A site in the coding sequence (CDS) region of Slug and promotes its mRNA stability. Conclusions Collectively, our study uncovers the oncogenic role and potential mechanism of IGF2BP2, which serves as a m6A reader, in controlling lymphatic metastasis and EMT in HNSCC, suggesting that IGF2BP2 may act as a therapeutic target and prognostic biomarker for HNSCC patients with metastasis. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-021-02212-1.
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Affiliation(s)
- Dan Yu
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Min Pan
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Yanshi Li
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Tao Lu
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Zhihai Wang
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Chuan Liu
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Guohua Hu
- Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuzhong District, Chongqing, 400016, China.
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Geng X, Li Z, Yang Y. Emerging Role of Epitranscriptomics in Diabetes Mellitus and Its Complications. Front Endocrinol (Lausanne) 2022; 13:907060. [PMID: 35692393 PMCID: PMC9184717 DOI: 10.3389/fendo.2022.907060] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 04/14/2022] [Indexed: 01/13/2023] Open
Abstract
Diabetes mellitus (DM) and its related complications are among the leading causes of disability and mortality worldwide. Substantial studies have explored epigenetic regulation that is involved in the modifications of DNA and proteins, but RNA modifications in diabetes are still poorly investigated. In recent years, posttranscriptional epigenetic modification of RNA (the so-called 'epitranscriptome') has emerged as an interesting field of research. Numerous modifications, mainly N6 -methyladenosine (m6A), have been identified in nearly all types of RNAs and have been demonstrated to have an indispensable effect in a variety of human diseases, such as cancer, obesity, and diabetes. Therefore, it is particularly important to understand the molecular basis of RNA modifications, which might provide a new perspective for the pathogenesis of diabetes mellitus and the discovery of new therapeutic targets. In this review, we aim to summarize the recent progress in the epitranscriptomics involved in diabetes and diabetes-related complications. We hope to provide some insights for enriching the understanding of the epitranscriptomic regulatory mechanisms of this disease as well as the development of novel therapeutic targets for future clinical benefit.
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Affiliation(s)
- Xinqian Geng
- Department of Endocrinology, The Affiliated Hospital of Yunnan University and the Second People’s Hospital of Yunnan Province, Kunming, China
| | - Zheng Li
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China
| | - Ying Yang
- Department of Endocrinology, The Affiliated Hospital of Yunnan University and the Second People’s Hospital of Yunnan Province, Kunming, China
- *Correspondence: Ying Yang,
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Jiang X, Guo S, Wang S, Zhang Y, Chen H, Wang Y, Liu RL, Niu YJ, Xu Y. EIF4A3-induced circARHGAP29 promotes aerobic glycolysis in docetaxel-resistant prostate cancer through IGF2BP2/c-Myc/LDHA signaling. Cancer Res 2021; 82:831-845. [PMID: 34965937 DOI: 10.1158/0008-5472.can-21-2988] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 11/15/2021] [Accepted: 12/21/2021] [Indexed: 11/16/2022]
Abstract
Docetaxel-based chemotherapy is a standard-of-care treatment for metastatic prostate cancer (PCa), and chemoresistance remains a major challenge in clinical practice. Recent studies have demonstrated that circular RNAs (circRNAs) play critical roles in the development and progression of PCa. However, the biological roles and potential functions of circRNAs in mediating docetaxel-resistant PCa have yet to be well elucidated. In this study, we analyzed the expression profiles of circRNAs in docetaxel-resistant and -sensitive PCa cells through RNA sequencing and found that expression of circARHGAP29 was significantly upregulated in docetaxel-resistant cell lines and clinical samples. Ectopic expression of circARHGAP29 triggered docetaxel resistance and aerobic glycolysis in PCa cells, which was reduced by silencing circARHGAP29. Moreover, eukaryotic initiation factor 4A3 (EIF4A3), which bound the back-spliced junction site and the downstream flanking sequence of circARHGAP29, induced cyclization and cytoplasmic export of circARHGAP29. circARHGAP29 increased the stability of lactate dehydrogenase A (LDHA) mRNA by strengthening its interaction with insulin-like growth factor 2 mRNA-binding protein 2 (IGF2BP2), leading to enhanced glycolytic metabolism. In addition, circARHGAP29 interacted with and stabilized c-Myc mRNA and protein, which further increased LDHA expression by facilitating its transcription. These findings reveal the crucial function of circARHGAP29 in PCa glycolysis by increasing and stabilizing LDHA mRNA, providing a promising therapeutic target in docetaxel-resistant PCa.
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Affiliation(s)
| | - Shanqi Guo
- Hematology, Tianjin Cancer Institute and Hospital
| | | | | | | | - Yong Wang
- School of Laboratory Medicine, Chawnshang Chang Sex Hormone Research Center, Tianjin Institute of Urology, Tianjin Medical University
| | - Ran Lu Liu
- Department of Urology, Second Hospital of TianJin Medical University, TianJin
| | - Yuan-Jie Niu
- Chawnshang Chang Sex Hormone Research Center , Department of Urology, The Second affiliated hospital of Tianjin Medical University
| | - Yong Xu
- Tianjin Institute of Urology
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44
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Bechara R, Amatya N, Majumder S, Zhou C, Li Y, Liu Q, McGeachy MJ, Gaffen SL. The RNA binding protein IMP2 drives a stromal-Th17 cell circuit in autoimmune neuroinflammation. JCI Insight 2021; 7:152766. [PMID: 34914635 PMCID: PMC8855811 DOI: 10.1172/jci.insight.152766] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 12/15/2021] [Indexed: 11/29/2022] Open
Abstract
Stromal cells are emerging as key drivers of autoimmunity, partially because they produce inflammatory chemokines that orchestrate inflammation. Chemokine expression is regulated transcriptionally but also through posttranscriptional mechanisms, the specific drivers of which are still incompletely defined. CCL2 (MCP1) is a multifunctional chemokine that drives myeloid cell recruitment. During experimental autoimmune encephalomyelitis (EAE), an IL-17–driven model of multiple sclerosis, CCL2 produced by lymph node (LN) stromal cells was essential for immunopathology. Here, we showed that Ccl2 mRNA upregulation in human stromal fibroblasts in response to IL-17 required the RNA-binding protein IGF-2 mRNA-binding protein 2 (IGF2BP2, IMP2), which is expressed almost exclusively in nonhematopoietic cells. IMP2 binds directly to CCL2 mRNA, markedly extending its transcript half-life, and is thus required for efficient CCL2 secretion. Consistent with this, Imp2−/− mice showed reduced CCL2 production in LNs during EAE, causing impairments in monocyte recruitment and Th17 cell polarization. Imp2–/– mice were fully protected from CNS inflammation. Moreover, deletion of IMP2 after EAE onset was sufficient to mitigate disease severity. These data showed that posttranscriptional control of Ccl2 in stromal cells by IMP2 was required to permit IL-17–driven progression of EAE pathogenesis.
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Affiliation(s)
- Rami Bechara
- Centre de Recherche en Immunologie des Infections Virales et des Maladies A, University of Paris-Saclay, Paris, France
| | - Nilesh Amatya
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, United States of America
| | - Saikat Majumder
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, United States of America
| | - Chunsheng Zhou
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, United States of America
| | - Yang Li
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, United States of America
| | - Qixing Liu
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, United States of America
| | - Mandy J McGeachy
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, United States of America
| | - Sarah L Gaffen
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, United States of America
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Sa R, Liang R, Qiu X, He Z, Liu Z, Chen L. IGF2BP2-dependent activation of ERBB2 signaling contributes to acquired resistance to tyrosine kinase inhibitor in differentiation therapy of radioiodine-refractory papillary thyroid cancer. Cancer Lett 2021; 527:10-23. [PMID: 34896211 DOI: 10.1016/j.canlet.2021.12.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 11/25/2021] [Accepted: 12/05/2021] [Indexed: 02/08/2023]
Abstract
Acquired drug resistance represents a major obstacle to tyrosine kinase inhibitor (TKI)-induced differentiation therapy of radioiodine-refractory papillary thyroid cancer (RR-PTC); thus, there is an urgent need to elucidate the underlying mechanisms. Here, selumetinib-resistant PTC (PTCSR) cell lines, which were characterized by loss of sodium/iodide symporter expression, enhanced insulin-like growth factor 2 mRNA-binding protein 2 (IGF2BP2), and activated V-Erb-B2 avian erythroblastic leukemia viral oncogene homolog 2 (ERBB2) signaling, were initially established using a dose escalation method. Upon knockdown of IGF2BP2 in PTCSR cells, ERBB2 signaling was inhibited, and the acquired drug resistance was partially reversed. Mechanistically, the luciferase activity assay showed that IGF2BP2 bound to the N6-methyladenosine-binding site in the coding sequence of ERBB2 mRNA, yielding an increased ERBB2 translation efficacy revealed by polysome profiling. Inhibition of ERBB2 and IGF2BP2 by lapatinib robustly rescued the PTCSR cells from acquired dedifferentiation. Our study demonstrated that IGF2BP2-dependent ERBB2 signaling activation contributes to acquired resistance to TKI, which may be a promising differentiation strategy for RR-PTC by targeting IGF2BP2.
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Affiliation(s)
- Ri Sa
- Department of Nuclear Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600# Yishan Rd, Shanghai, 200233, People's Republic of China; Department of Nuclear Medicine, The First Hospital of Jilin University, 1# Xinmin St, Changchun, 130021, People's Republic of China.
| | - Rui Liang
- Department of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, 610041, People's Republic of China.
| | - Xian Qiu
- Department of Nuclear Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600# Yishan Rd, Shanghai, 200233, People's Republic of China.
| | - Ziyan He
- Department of Nuclear Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600# Yishan Rd, Shanghai, 200233, People's Republic of China.
| | - Zhiyan Liu
- Department of Pathology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600# Yishan Rd, Shanghai, 200233, People's Republic of China.
| | - Libo Chen
- Department of Nuclear Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600# Yishan Rd, Shanghai, 200233, People's Republic of China.
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Xiao K, Liu P, Yan P, Liu Y, Song L, Liu Y, Xie L. N6-methyladenosine reader YTH N6-methyladenosine RNA binding protein 3 or insulin like growth factor 2 mRNA binding protein 2 knockdown protects human bronchial epithelial cells from hypoxia/reoxygenation injury by inactivating p38 MAPK, AKT, ERK1/2, and NF-κB pathways. Bioengineered 2021; 13:11973-11986. [PMID: 34709120 PMCID: PMC9211071 DOI: 10.1080/21655979.2021.1999550] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Lung ischemia/reperfusion (I/R) injury (LIRI) is a common complication after lung transplantation, embolism, and trauma. N6-methyladenosine (m6A) methylation modification is implicated in the pathogenesis of I/R injury. However, there are no or few reports of m6A-related regulators in LIRI till now. In this text, dysregulated genes in lung tissues of LIRI rats versus the sham group were identified by RNA sequencing (RNA-seq). RNA-seq outcomes revealed that only YTH N6-methyladenosine RNA binding protein 3 (YTHDF3) and insulin-like growth factor 2 mRNA-binding protein 2 (IGF2BP2) were differentially expressed in the LIRI versus sham group among 20 m6A-related regulators. Next, the functions and molecular mechanisms of YTHDF3 and IGF2BP2 in LIRI were investigated in a hypoxia/reoxygenation-induced BEAS-2B cell injury model in vitro. Results showed that YTHDF3 or IGF2BP2 knockdown attenuated hypoxia/reoxygenation-mediated inhibitory effects on cell survival and cell cycle progression and inhibited hypoxia/reoxygenation-induced cell apoptosis and pro-inflammatory cytokine secretion in BEAS-2B cells. Genes that could be directly regulated by YTHDF3 or IGF2BP2 were identified based on prior experimental data and bioinformatics analysis. Moreover, multiple potential downstream pathways of YTHDF3 and IGF2BP2 were identified by the Kyoto Encyclopedia of Genes and Genomes (KEGG) and Gene Ontology (GO) enrichment analysis of the above-mentioned genes. Among these potential pathways, we demonstrated that YTHDF3 or IGF2BP2 knockdown inhibited hypoxia/reoxygenation-activated p38, ERK1/2, AKT, and NF-κB pathways in BEAS-2B cells. In conclusion, YTHDF3 or IGF2BP2 knockdown weakened hypoxia/reoxygenation-induced human lung bronchial epithelial cell injury by inactivating p38, AKT, ERK1/2, and NF-κB pathways.
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Affiliation(s)
- Kun Xiao
- College of Pulmonary & Critical Care Medicine, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Pengfei Liu
- College of Pulmonary & Critical Care Medicine, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Peng Yan
- College of Pulmonary & Critical Care Medicine, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Yanxin Liu
- Medical School of Chinese People's Liberation Army (PLA), Beijing, China
| | - Licheng Song
- College of Pulmonary & Critical Care Medicine, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Yuhong Liu
- College of Pulmonary & Critical Care Medicine, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China.,Medical School of Chinese People's Liberation Army (PLA), Beijing, China
| | - Lixin Xie
- College of Pulmonary & Critical Care Medicine, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
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Blizard S, Park D, O’Toole N, Norooz S, Dela Torre M, Son Y, Holstein A, Austin S, Harman J, Haraszti S, Fared D, Xu M. Neuron-Specific IMP2 Overexpression by Synapsin Promoter-Driven AAV9: A Tool to Study Its Role in Axon Regeneration. Cells 2021; 10:2654. [PMID: 34685634 PMCID: PMC8534607 DOI: 10.3390/cells10102654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 08/30/2021] [Accepted: 10/02/2021] [Indexed: 11/17/2022] Open
Abstract
Insulin-like growth factor II mRNA-binding protein (IMP) 2 is one of the three homologues (IMP1-3) that belong to a conserved family of mRNA-binding proteins. Its alternative splice product is aberrantly expressed in human hepatocellular carcinoma, and it is therefore identified as HCC. Previous works have indicated that IMP1/ZBP1 (zipcode binding protein) is critical in axon guidance and regeneration by regulating localization and translation of specific mRNAs. However, the role of IMP2 in the nervous system is largely unknown. We used the synapsin promoter-driven adeno-associated viral (AAV) 9 constructs for transgene expression both in vitro and in vivo. These viral vectors have proven to be effective to transduce the neuron-specific overexpression of IMP2 and HCC. Applying this viral vector in the injury-conditioned dorsal root ganglion (DRG) culture demonstrates that overexpression of IMP2 significantly inhibits axons regenerating from the neurons, whereas overexpression of HCC barely interrupts the process. Quantitative analysis of binding affinities of IMPs to β-actin mRNA reveals that it is closely associated with their roles in axon regeneration. Although IMPs share significant structural homology, the distinctive functions imply their different ability to localize specific mRNAs and to regulate the axonal translation.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Mei Xu
- Department of Bio-Medical Sciences, Philadelphia College of Osteopathic Medicine, 4170 City Avenue, Philadelphia, PA 19131, USA; (S.B.); (D.P.); (N.O.); (S.N.); (M.D.T.); (Y.S.); (A.H.); (S.A.); (J.H.); (S.H.); (D.F.)
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Grenov AC, Moss L, Edelheit S, Cordiner R, Schmiedel D, Biram A, Hanna JH, Jensen TH, Schwartz S, Shulman Z. The germinal center reaction depends on RNA methylation and divergent functions of specific methyl readers. J Exp Med 2021; 218:e20210360. [PMID: 34402854 PMCID: PMC8374864 DOI: 10.1084/jem.20210360] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 06/02/2021] [Accepted: 07/22/2021] [Indexed: 12/19/2022] Open
Abstract
Long-lasting immunity depends on the generation of protective antibodies through the germinal center (GC) reaction. N6-methyladenosine (m6A) modification of mRNAs by METTL3 activity modulates transcript lifetime primarily through the function of m6A readers; however, the physiological role of this molecular machinery in the GC remains unknown. Here, we show that m6A modifications by METTL3 are required for GC maintenance through the differential functions of m6A readers. Mettl3-deficient GC B cells exhibited reduced cell-cycle progression and decreased expression of proliferation- and oxidative phosphorylation-related genes. The m6A binder, IGF2BP3, was required for stabilization of Myc mRNA and expression of its target genes, whereas the m6A reader, YTHDF2, indirectly regulated the expression of the oxidative phosphorylation gene program. Our findings demonstrate how two independent gene networks that support critical GC functions are modulated by m6A through distinct mRNA binders.
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Affiliation(s)
- Amalie C. Grenov
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - Lihee Moss
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - Sarit Edelheit
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel
| | - Ross Cordiner
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
| | - Dominik Schmiedel
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - Adi Biram
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - Jacob H. Hanna
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel
| | - Torben Heick Jensen
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
| | - Schraga Schwartz
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel
| | - Ziv Shulman
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
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49
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Gu J, Dai B, Shi X, He Z, Xu Y, Meng X, Zhu J. lncRNA HCG11 suppresses human osteosarcoma growth through upregulating p27 Kip1. Aging (Albany NY) 2021; 13:21743-21757. [PMID: 34518440 PMCID: PMC8457558 DOI: 10.18632/aging.203517] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 08/24/2021] [Indexed: 12/16/2022]
Abstract
Osteosarcoma (OS) is a common malignant bone cancer threatening children and young adults. Emerging evidence indicates that long non-coding RNAs (lncRNAs) play crucial roles in the progression of OS. Herein, we want to clarify the roles of lncRNA human leukocyte antigen complex group 11 (HCG11) in OS. Our data revealed that HCG11 expression is decreased in OS, which is a result of transcriptional repression of YY1. Low HCG11 level is closely associated with larger tumor size and shorter overall survival of OS patients. HCG11 negatively regulates cell proliferation, cell cycle, DNA replication in vitro and tumor growth in vivo. HCG11 can raise p27 Kip1 expression via binding to miR-942-5p and IGF2BP2, and p27 Kip1 acts as a key effector for HCG11 exerting biological functions. In conclusion, HCG11 is downregulated in OS, and restrains OS growth both in vitro and in vivo by raising p27 Kip1 expression via binding to miR-942-5p and IGF2BP2.
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Affiliation(s)
- Jie Gu
- Department of Orthopaedics Surgery, Beilun People's Hospital, Ningbo, Zhejiang, China
| | - Bo Dai
- Department of Orthopaedics Surgery, Beilun People's Hospital, Ningbo, Zhejiang, China
| | - Xuchao Shi
- Department of Orthopaedics Surgery, Beilun People's Hospital, Ningbo, Zhejiang, China
| | - Zhennian He
- Department of Orthopaedics Surgery, Beilun People's Hospital, Ningbo, Zhejiang, China
| | - Yuanlin Xu
- Department of Orthopaedics Surgery, Beilun People's Hospital, Ningbo, Zhejiang, China
| | - Xiangqian Meng
- Department of Stomatology, Beilun People's Hospital, Ningbo, Zhejiang, China
| | - Junlan Zhu
- The Precision Medicine Laboratory, Beilun People's Hospital, Ningbo, Zhejiang, China
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50
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Dong L, Geng Z, Liu Z, Tao M, Pan M, Lu X. IGF2BP2 knockdown suppresses thyroid cancer progression by reducing the expression of long non-coding RNA HAGLR. Pathol Res Pract 2021; 225:153550. [PMID: 34340128 DOI: 10.1016/j.prp.2021.153550] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 07/04/2021] [Accepted: 07/07/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND N6-methyladenosine (m6A), a common internal modification on RNAs, has been found to be closely linked with RNA biosynthesis/metabolism and cancer development. In this text, the roles and molecular mechanisms of m6A-bind protein IGF2BP2 in the development of thyroid cancer (TC) were investigated in vitro. METHODS IGF2BP2 and lncRNA HAGLR were screened out through multiple public databases such as TCGA, Ualcan, POSTAR2, Starbase, and GEPIA. Cell proliferative, migratory and invasive abilities were assessed by CCK-8, Transwell migration and invasion assays, respectively. Cell cycle distribution and cell apoptotic patterns were measured by flow cytometry. The interaction between HAGLR and IGF2BP2 was examined by RIP, RNA pull-down and luciferase assays and bioinformatics analysis. The effect of IGF2BP2 knockdown on the m6A level of HAGLR was explored by meRIP assay. RESULTS IGF2BP2 was highly expressed in TC tumor tissues. IGF2BP2 knockdown weakened cell proliferative, migratory, and invasive abilities, and induced cell cycle arrest and cell apoptosis in TC cells. LncRNA HAGLR expression was markedly upregulated and positively associated with IGF2BP2 expression in TC tissues. IGF2BP2 knockdown reduced HAGLR expression and transcript stability in TC cells. IGF2BP2 regulated HAGLR expression in an m6A-dependent manner. HAGLR overexpression weakened the effects of IGF2BP2 loss on cell proliferation, migration, invasion, apoptosis, and cell cycle progression in TC cells. CONCLUSION IGF2BP2 loss inhibited cell proliferation, migration and invasion, and induced cell apoptosis and cell cycle arrest by down-regulating HAGLR expression in an m6A-dependent manner in TC cells, providing some potential diagnostic and therapeutic targets for TC.
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Affiliation(s)
- Liangpeng Dong
- Department of Thyroid Surgery, The first Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China; The first Affiliated Hospital of Xinxiang Medical University, Xinxiang 453100, Henan, China
| | - Zushi Geng
- Department of Thyroid Surgery, The first Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Zheng Liu
- Department of Thyroid Surgery, The first Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Mei Tao
- Department of Thyroid Surgery, The first Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Mengjiao Pan
- Department of Thyroid Surgery, The first Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Xiubo Lu
- Department of Thyroid Surgery, The first Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China.
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