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Hoang T, Cho S, Choi JY, Kang D, Shin A. Genome-Wide Interaction Study of Dietary Intake and Colorectal Cancer Risk in the UK Biobank. JAMA Netw Open 2024; 7:e240465. [PMID: 38411962 PMCID: PMC10900970 DOI: 10.1001/jamanetworkopen.2024.0465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/28/2024] Open
Abstract
Importance Candidate gene analysis approaches have shown that colorectal cancer (CRC) risk attributable to diet may differ according to genotype. A genome-wide approach further allows for the exploration of underlying pathways for associations between diet and CRC risk across the genome. Objectives To identify genetic variants that modify diet-CRC associations and to further explore the underlying pathways in the cause of CRC. Design, Setting, and Participants This nested case-control study used data on White British participants from the prospective cohort UK Biobank. Participants were recruited between March 13, 2006, and October 1, 2010, and data were censored June 25, 2021. Exposures The average frequency intake of 11 dietary factors in the year preceding baseline was obtained via a touchscreen questionnaire. After quality control for more than 93 million variants of imputed genetic data, 4 122 345 variants remained. Main Outcomes and Measures Colorectal cancer cases were identified according to the International Statistical Classification of Diseases and Related Health Problems, Tenth Revision. Genome-wide interaction analysis was performed to test interactions between dietary factors and variants using a conditional logistic regression model. Summary statistics of interactions at the variant level were used to calculate empirical P values for interactions at gene and gene-set levels in gene-based and gene-set enrichment analyses. Results A total of 4686 participants with CRC (mean [SD] age, 60.7 [6.6] years; 2707 men [57.8%]) received a new diagnosis during a median of 12.4 years (IQR, 11.6-13.1 years) of follow-up. Once a case was detected, 3 matched controls were identified, for a total of 14 058 controls (mean [SD] age, 60.4 [6.6] years; 8121 men [57.8%]). A total of 324 variants were identified that interacted with diet consumption at the suggestive threshold (P < 1 × 10-5). In gene-based analysis, aggregation of multiple EPDR1 gene variants was found to interact with fish intake regarding CRC risk. Furthermore, gene-set enrichment analysis found that several sets of protein-coding genes, which were overrepresented with particular functions and pathways, interacted with the consumption of milk (ART), cheese (OR), tea (KRT), and alcohol (PRM and TNP). Conclusions and Relevance In this nested case-control study, the risk of CRC associated with fish intake was modified by multiple single-nucleotide polymorphisms of the EPDR1 gene. The findings further suggested possible functions and pathways that might link the consumption of milk, cheese, tea, and alcohol with CRC development.
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Affiliation(s)
- Tung Hoang
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea
- Integrated Major in Innovative Medical Science, Seoul National University Graduate School, Seoul, Korea
| | - Sooyoung Cho
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea
- Genomic Medicine Institute, Medical Research Center, Seoul National University, Seoul, Korea
| | - Ji-Yeob Choi
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Korea
- BK21plus Biomedical Science Project, Seoul National University College of Medicine, Seoul, Korea
- Institute of Health Policy and Management, Medical Research Center, Seoul National University, Seoul, Korea
- Cancer Research Institute, Seoul National University, Seoul, Korea
| | - Daehee Kang
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Korea
- Cancer Research Institute, Seoul National University, Seoul, Korea
| | - Aesun Shin
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea
- Integrated Major in Innovative Medical Science, Seoul National University Graduate School, Seoul, Korea
- Cancer Research Institute, Seoul National University, Seoul, Korea
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Zhang Y, Guan Y, Zheng X, Li C. Hypoxia-induced miR-181a-5p up-regulation reduces epirubicin sensitivity in breast cancer cells through inhibiting EPDR1/TRPC1 to activate PI3K/AKT signaling pathway. BMC Cancer 2024; 24:167. [PMID: 38308220 PMCID: PMC10835859 DOI: 10.1186/s12885-024-11906-6] [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: 03/16/2023] [Accepted: 01/21/2024] [Indexed: 02/04/2024] Open
Abstract
Breast carcinoma (BC) ranks as a predominant malignancy and constitutes the second principal cause of mortality among women globally. Epirubicin stands as the drug of choice for BC therapeutics. Nevertheless, the emergence of chemoresistance has significantly curtailed its therapeutic efficacy. The resistance mechanisms to Epirubicin remain not entirely elucidated, yet they are conjectured to stem from diminished tumor vascular perfusion and resultant hypoxia consequent to Epirubicin administration. In our investigation, we meticulously scrutinized the Gene Expression Omnibus database for EPDR1, a gene implicated in hypoxia and Epirubicin resistance in BC. Subsequently, we delineated the impact of EPDR1 on cellular proliferation, motility, invasive capabilities, and interstitial-related proteins in BC cells, employing methodologies such as the CCK-8 assay, Transwell assay, and western blot analysis. Our research further unveiled that hypoxia-induced miR-181a-5p orchestrates the regulation of BC cell duplication, migration, invasion, and interstitial-related protein expression via modulation of EPDR1. In addition, we identified TRPC1, a gene associated with EPDR1 expression in BC, and substantiated that EPDR1 influences BC cellular dynamics through TRPC1-mediated modulation of the PI3K/AKT signaling cascade. Our findings underscore the pivotal role of EPDR1 in the development of BC. EPDR1 was found to be expressed at subdued levels in BC tissues, Epirubicin-resistant BC cells, and hypoxic BC cells. The overexpression of EPDR1 curtailed BC cell proliferation, motility, invasiveness, and the expression of interstitial-related proteins. At a mechanistic level, the overexpression of hypoxia-induced miR-181a-5p was observed to inhibit the EPDR1/TRPC1 axis, thereby activating the PI3K/AKT signaling pathway and diminishing the sensitivity to Epirubicin in BC cells. In summation, our study demonstrates that the augmentation of hypoxia-induced miR-181a-5p diminishes Epirubicin sensitivity in BC cells by attenuating EPDR1/TRPC1 expression, thereby invigorating the PI3K/AKT signaling pathway. This exposition offers a theoretical foundation for the application of Epirubicin in BC therapy, marking a significant contribution to the existing body of oncological literature.
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Affiliation(s)
- Yunwei Zhang
- Department of Breast Surgery, The First Hospital of China Medical University, 155 North Nanjing Street, Shenyang, Liaoning, China
- Department of Breast Clinic, Shenyang Maternity and Child Health Hosital, No. 20, Yuanjiang Street, Shenyang, Liaoning, China
| | - Yunping Guan
- Department of Breast Clinic, Shenyang Maternity and Child Health Hosital, No. 20, Yuanjiang Street, Shenyang, Liaoning, China
| | - Xinyu Zheng
- Department of Breast Surgery, The First Hospital of China Medical University, 155 North Nanjing Street, Shenyang, Liaoning, China.
- Lab 1, Cancer Institute, The First Hospital of China Medical University, 155 North Nanjing Street, Shenyang, Liaoning, China.
| | - Chenyang Li
- Department of Breast Clinic, Shenyang Maternity and Child Health Hosital, No. 20, Yuanjiang Street, Shenyang, Liaoning, China.
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Zhu X, Xu X, Shen M, Wang Y, Zheng T, Li H, Wang X, Meng J. Transcriptomic Heterogeneity of Human Mesenchymal Stem Cells Derived from Bone Marrow, Dental Pulp, Adipose Tissue, and Umbilical Cord. Cell Reprogram 2023; 25:162-170. [PMID: 37384924 DOI: 10.1089/cell.2023.0019] [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: 07/01/2023] Open
Abstract
Compared with mesenchymal stem cells (MSCs) obtained from other tissue sources, those derived from umbilical cord (UC) tissue exhibit numerous advantages and vast potential for therapeutic applications. However, MSCs from different tissue sources are heterogeneous, and therefore, the therapeutic efficacy of UC-derived MSCs as a replacement for other tissue-derived MSCs needs to be studied. To better understand the distinctions between UC-derived MSCs and MSCs derived from other tissues, we conducted a transcriptome analysis of MSCs obtained from UC and three other tissues. Correlation analysis revealed the strongest correlation between UC-MSCs (UC-MSCs) and bone marrow-MSCs (BM-MSCs). Compared with UC-MSCs, the lower differentially expressed genes of BM-MSCs, dental pulp-MSCs (DP-MSCs), and adipose tissue-MSCs (AP-MSCs) were predominantly enriched in actin-related terms, while higher differentially expressed genes were predominantly enriched in immunological processes. We also analyzed the distribution of 34 frequently or highly expressed cell characterization molecules in BM-MSCs, DP-MSCs, AP-MSCs, and UC-MSCs. CD200 (FPKM >10) was only detected in UC-MSCs, while CD106 was detected in AD-MSCs and DP-MSCs (FPKM >10). The reliability of transcriptomic data analysis was verified by quantitative real-time PCR. Finally, we recommend the use of CD200, CD106, and other similar markers with unstable expression as benchmark molecules to monitor the proliferation and differentiation potential of MSCs. This study provides comprehensive insights into the heterogeneity between UC-MSCs and MSCs derived from other tissues, which can guide the therapeutic application of UC-MSCs.
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Affiliation(s)
- Xiaoxiao Zhu
- Xuzhou Central Hospital, Xuzhou, China
- Xuzhou Clinical School of Xuzhou Medical University, Xuzhou, China
| | - Xinchen Xu
- Xuzhou Central Hospital, Xuzhou, China
- Xuzhou Clinical School of Xuzhou Medical University, Xuzhou, China
| | - Mengyuan Shen
- Xuzhou Central Hospital, Xuzhou, China
- Xuzhou Clinical School of Xuzhou Medical University, Xuzhou, China
| | - Yingying Wang
- Xuzhou Central Hospital, Xuzhou, China
- Xuzhou Clinical School of Xuzhou Medical University, Xuzhou, China
| | - Tao Zheng
- Xuzhou Central Hospital, Xuzhou, China
- Xuzhou Clinical School of Xuzhou Medical University, Xuzhou, China
| | - Huitao Li
- Xuzhou Central Hospital, Xuzhou, China
- Xuzhou Clinical School of Xuzhou Medical University, Xuzhou, China
| | - Xing Wang
- Xuzhou Clinical School of Xuzhou Medical University, Xuzhou, China
- Department of Stomatology, China Rehabilitation Center, Beijing, China
| | - Jian Meng
- Xuzhou Central Hospital, Xuzhou, China
- Xuzhou Clinical School of Xuzhou Medical University, Xuzhou, China
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Yu B, Huang Y, Yang Y, Hu H, Yang J. Effect of CTP-mediated PTEN on 5637 bladder cancer cells and the underlying molecular mechanism. BMC Urol 2022; 22:200. [PMID: 36496361 PMCID: PMC9741776 DOI: 10.1186/s12894-022-01152-y] [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: 12/01/2021] [Accepted: 11/22/2022] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE The aim of the present study was to explore the effect of cytoplasmic transduction peptide (CTP)-phosphatase and tensin homolog (PTEN) on the proliferation, cell cycle, apoptosis, migration and invasion of bladder cancer cells and the underlying molecular mechanism. METHODS A eukaryotic expression vector, pTT5-CTP-PTEN, was constructed. The constructed vector was transfected into HEK 293-6E cells to express a fusion protein, CTP-PTEN. The fusion protein was purified. 5637 bladder cancer cells were cocultured with purified CTP-PTEN fusion protein. Target gene expression, protein expression, cell proliferation, cell cycle, apoptosis, cell invasion and cell migration were examined by reverse transcription polymerase chain reaction (RT-PCR), western blot, MTT assay, flow cytometry, Transwell assay, and cell scratch assay, respectively. RESULTS Both PTEN and CTP-PTEN fusion protein inhibited the proliferation, cell cycle, invasion and migration of bladder cancer cells and promoted the apoptosis of bladder cancer cells. The effect of CTP-PTEN was more significant. CONCLUSIONS The fused expression of CTP and PTEN significantly increased the penetrability of the tumor suppressor gene PTEN into cancer cells. The CTP-PTEN fusion protein exhibited a significant carcinostatic effect on 5637 bladder cancer cells.
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Affiliation(s)
- Bei Yu
- grid.411292.d0000 0004 1798 8975Urological Department, The Affiliated Hospital of Chengdu University, Chengdu, Sichuan China
| | - Yuan Huang
- grid.411292.d0000 0004 1798 8975Department of Clinical Laboratory, The Affiliated Hospital of Chengdu University, Chengdu, Sichuan China
| | - Yue Yang
- grid.411292.d0000 0004 1798 8975Urological Department, The Affiliated Hospital of Chengdu University, Chengdu, Sichuan China
| | - Haifeng Hu
- grid.411292.d0000 0004 1798 8975Urological Department, The Affiliated Hospital of Chengdu University, Chengdu, Sichuan China
| | - Jin Yang
- grid.411292.d0000 0004 1798 8975Urological Department, The Affiliated Hospital of Chengdu University, Chengdu, Sichuan China
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The human batokine EPDR1 regulates β-cell metabolism and function. Mol Metab 2022; 66:101629. [PMID: 36343918 PMCID: PMC9663883 DOI: 10.1016/j.molmet.2022.101629] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 10/14/2022] [Accepted: 11/01/2022] [Indexed: 11/08/2022] Open
Abstract
OBJECTIVE Ependymin-Related Protein 1 (EPDR1) was recently identified as a secreted human batokine regulating mitochondrial respiration linked to thermogenesis in brown fat. Despite that EPDR1 is expressed in human pancreatic β-cells and that glucose-stimulated mitochondrial metabolism is critical for stimulus-secretion coupling in β-cells, the role of EPDR1 in β-cell metabolism and function has not been investigated. METHODS EPDR1 mRNA levels in human pancreatic islets from non-diabetic (ND) and type 2 diabetes (T2D) subjects were assessed. Human islets, EndoC-βH1 and INS1 832/13 cells were transfected with scramble (control) and EPDR1 siRNAs (EPDR1-KD) or treated with human EPDR1 protein, and glucose-stimulated insulin secretion (GSIS) assessed by ELISA. Mitochondrial metabolism was investigated by extracellular flux analyzer, confocal microscopy and mass spectrometry-based metabolomics analysis. RESULTS EPDR1 mRNA expression was upregulated in human islets from T2D and obese donors and positively correlated to BMI of donors. In T2D donors, EPDR1 mRNA levels negatively correlated with HbA1c and positively correlated with GSIS. EPDR1 silencing in human islets and β-cell lines reduced GSIS whereas treatment with human EPDR1 protein increased GSIS. Epdr1 silencing in INS1 832/13 cells reduced glucose- and pyruvate- but not K+-stimulated insulin secretion. Metabolomics analysis in Epdr1-KD INS1 832/13 cells suggests diversion of glucose-derived pyruvate to lactate production and decreased malate-aspartate shuttle and the tricarboxylic acid (TCA) cycle activity. The glucose-stimulated rise in mitochondrial respiration and ATP/ADP-ratio was impaired in Epdr1-deficient cells. CONCLUSION These results suggests that to maintain glucose homeostasis in obese people, upregulation of EPDR1 may improve β-cell function via channelling glycolysis-derived pyruvate to the mitochondrial TCA cycle.
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Yang Y, Xu H, Zhu H, Yuan D, Zhang H, Liu Z, Zhao F, Liang G. EPDR1 levels and tumor budding predict and affect the prognosis of bladder carcinoma. Front Oncol 2022; 12:986006. [PMID: 36276104 PMCID: PMC9585273 DOI: 10.3389/fonc.2022.986006] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 09/13/2022] [Indexed: 11/13/2022] Open
Abstract
Background Bladder carcinoma is a common malignancy of the urinary system. The previous study showed that EPDR1 expression was significantly related to the carcinogenesis and progression of bladder carcinoma Methods We retrospectively reviewed the records of 621 patients who were newly diagnosed with bladder carcinoma between January 2018 and August 2020 at The Affiliated Hospital of Zunyi Medical University. We conducted immunohistochemistry of EPDR1 in tumor tissues. Meanwhile, tumor budding evaluation was also carried out by 2 independent experienced pathologists. Results 80 patients were included in this study with a median age of 66 years (range; 42–88 years). 45% of the patients (36/80) were non-muscle-invasive bladder carcinoma patients, while 55% of muscle-invasive bladder carcinoma(44/80). The follow-up time was from 6 months to 36 months. We found that there were significant differences in expression of EPDR1 in the tumor pT stages(p<0.05), pM stages(p<0.05), and pN stages(p<0.05). Meanwhile, a higher expression of EPDR1 indicated a worse outcome for the patient(p<0.05). A tendency toward a worse status of the patient was accompanied by a high positive rate (p<0.001). Moreover, the IOD of EPDR1 had a positive relationship with TB (p<0.05). Furthermore, we found that EPDR1 and tumor budding could be crucial factors for affecting the prognosis of bladder carcinoma, even better than pTMN(Riskscore=(0.724)* pT_stage +(4.960) *EPDR1+(4.312)*TB). Conclusion In conclusion, bladder cancer patients with higher expression levels of EPDR1 had worse survival outcomes. The combination of TB and EPDR1 levels could predict the prognosis for muscle-invasive bladder cancer patients.
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Affiliation(s)
- Yue Yang
- Department of Urology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Department of Urology, Affiliated Hospital and Clinical Medical College of Chengdu University, Chengdu, China
- Medical College of Soochow University, Suzhou, China
| | - Hong Xu
- Department of Urology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Han Zhu
- Department of Urology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Dan Yuan
- Department of Pathology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Hanchao Zhang
- Department of Urology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Department of Urology, Affiliated Hospital and Clinical Medical College of Chengdu University, Chengdu, China
- Medical College of Soochow University, Suzhou, China
- Department of Pathology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Zhengdao Liu
- Department of Urology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Medical College of Soochow University, Suzhou, China
| | - Faliang Zhao
- Department of Urology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Medical College of Soochow University, Suzhou, China
| | - Guobiao Liang
- Department of Urology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Medical College of Soochow University, Suzhou, China
- *Correspondence: Guobiao Liang,
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Yang Y, Hu H, Chen L, Zhang H, Yang J. A new survival model based on ferroptosis-related genes (FRGS) for prognostic prediction in bladder cancer. Actas Urol Esp 2022; 46:494-503. [PMID: 35780051 DOI: 10.1016/j.acuroe.2022.06.001] [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: 04/08/2021] [Accepted: 12/11/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND Bladder cancer (BLCA) is a malignant urothelial carcinoma with a high mortality rate. Ferroptosis is a new type of programmed cell death and functions in suppressing tumor growth and progression. However, few studies focus on ferroptosis and BLCA. MATERIALS AND METHODS We explored the potential oncogenic roles of ferroptosis-related genes in BLCA based on multiple public datasets. We then used univariate and multivariate cox regression to build a new survival model based on ferroptosis-related genes to predict the survival of BLCA. RESULTS We found that 23 ferroptosis-related genes had a strong correlation with each other in BLCA. Eight ferroptosis-related genes, CDKN1A, HSPA5, NFE2L2, MT1G, FANCD2, CISD1, TFRC, NCOA4, had a significantly different expression and heat-map. HSPA5 and CISD1 have a statistically significant difference in OS and DFS. Besides, CISD1 had an ideal nomogram to predict the 1-3-5-year OS (C-index: 0.701, P < .001). Furthermore, HSPA5 and CISD1 had a lower DNA methylation rate than normal tissue and HSPA5 had a positive connection with TMB (P = .02). In addition, HSPA5 participated in the DNA replication and P53 signaling pathway, and CISD1 mediated the oxidative phosphorylation and positive regulation of the intrinsic apoptotic signaling pathway. CONCLUSION Ferroptosis-related genes had a strong correlation with BLCA, notably, HSPA5 and CISD1 may play a role in inducing ferroptosis to suppress bladder tumorigenesis and CISD1 can be a novel prognostic biomarker as well as an effective target for diagnosis and treatment in BLCA.
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Affiliation(s)
- Yue Yang
- Urological Department, The Affiliated Hospital of Chengdu University, Chengdu, Sichuan, China; Medical College of Soochow University, Suzhou, Jiangsu, China
| | - Haifeng Hu
- Urological Department, The Affiliated Hospital of Chengdu University, Chengdu, Sichuan, China
| | - Lin Chen
- Urological Department, The Affiliated Hospital of Chengdu University, Chengdu, Sichuan, China
| | - Hanchao Zhang
- Urological Department, The Affiliated Hospital of Chengdu University, Chengdu, Sichuan, China; Medical College of Soochow University, Suzhou, Jiangsu, China
| | - Jin Yang
- Urological Department, The Affiliated Hospital of Chengdu University, Chengdu, Sichuan, China.
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Ahmed T, Flores PC, Pan CC, Ortiz HR, Lee YS, Langlais PR, Mythreye K, Lee NY. EPDR1 is a noncanonical effector of insulin-mediated angiogenesis regulated by an endothelial-specific TGF-β receptor complex. J Biol Chem 2022; 298:102297. [PMID: 35872017 PMCID: PMC9396412 DOI: 10.1016/j.jbc.2022.102297] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 07/05/2022] [Accepted: 07/08/2022] [Indexed: 02/05/2023] Open
Abstract
Insulin signaling in blood vessels primarily functions to stimulate angiogenesis and maintain vascular homeostasis through the canonical PI3K and MAPK signaling pathways. However, angiogenesis is a complex process coordinated by multiple other signaling events. Here, we report a distinct crosstalk between the insulin receptor and endoglin/activin receptor-like kinase 1 (ALK1), an endothelial cell-specific TGF-β receptor complex essential for angiogenesis. While the endoglin-ALK1 complex normally binds to TGF-β or bone morphogenetic protein 9 (BMP9) to promote gene regulation via transcription factors Smad1/5, we show that insulin drives insulin receptor oligomerization with endoglin-ALK1 at the cell surface to trigger rapid Smad1/5 activation. Through quantitative proteomic analysis, we identify ependymin-related protein 1 (EPDR1) as a major Smad1/5 gene target induced by insulin but not by TGF-β or BMP9. We found endothelial EPDR1 expression is minimal at the basal state but is markedly enhanced upon prolonged insulin treatment to promote cell migration and formation of capillary tubules. Conversely, we demonstrate EPDR1 depletion strongly abrogates these angiogenic effects, indicating that EPDR1 is a crucial mediator of insulin-induced angiogenesis. Taken together, these results suggest important therapeutic implications for EPDR1 and the TGF-β pathways in pathologic angiogenesis during hyperinsulinemia and insulin resistance.
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Affiliation(s)
- Tasmia Ahmed
- Department of Chemistry & Biochemistry, University of Arizona, Tucson, Arizona, USA
| | - Paola Cruz Flores
- Department of Chemistry & Biochemistry, University of Arizona, Tucson, Arizona, USA
| | - Christopher C. Pan
- Department of Pharmacology and Cancer Biology, Duke University, Durham, North Carolina, USA
| | - Hannah R. Ortiz
- Department of Pharmacology, University of Arizona, Tucson, Arizona, USA
| | - Yeon S. Lee
- Department of Pharmacology, University of Arizona, Tucson, Arizona, USA
| | - Paul R. Langlais
- Department of Medicine, University of Arizona, Tucson, Arizona, USA
| | - Karthikeyan Mythreye
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, USA,For correspondence: Nam Y. Lee; Karthikeyan Mythreye
| | - Nam Y. Lee
- Department of Chemistry & Biochemistry, University of Arizona, Tucson, Arizona, USA,Department of Pharmacology, University of Arizona, Tucson, Arizona, USA,Comprehensive Cancer Center, University of Arizona, Tucson, Arizona, USA,For correspondence: Nam Y. Lee; Karthikeyan Mythreye
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Yang Y, Hu H, Chen L, Zhang H, Yang J. Nuevo modelo pronóstico de supervivencia del cáncer de vejiga basado en los genes vinculados a la ferroptosis (FRGS). Actas Urol Esp 2022. [DOI: 10.1016/j.acuro.2021.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Zhao Z, Wang Z, Wang P, Liu S, Li Y, Yang X. EPDR1, Which Is Negatively Regulated by miR-429, Suppresses Epithelial Ovarian Cancer Progression via PI3K/AKT Signaling Pathway. Front Oncol 2021; 11:751567. [PMID: 35004274 PMCID: PMC8733570 DOI: 10.3389/fonc.2021.751567] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 11/30/2021] [Indexed: 12/20/2022] Open
Abstract
Epithelial ovarian cancer (EOC) is the main pathological type of ovarian cancer. In this study, we found that ependymin-related 1 (EPDR1) was remarkably downregulated in EOC tissues, and low EPDR1 expression was associated with International Federation of Gynecology and Obstetrics (FIGO) stage, metastasis, and poor prognosis. We confirmed that EPDR1 overexpression dramatically suppressed EOC cell proliferation, migration, and invasion in vitro and in vivo. Mechanistically, EPDR1 inhibited EOC tumorigenesis and progression, at least in part, through the repression of the PI3K (Phosphoinositide 3-kinase)/AKT (AKT Serine/Threonine Kinase 1) signaling pathway. Furthermore, the expression and function of EPDR1 were regulated by miR-429, as demonstrated by luciferase reporter assays and rescue experiments. In conclusion, our study validated that EPDR1, negatively regulated by miR-429, played an important role as a tumor-suppressor gene in EOC development via inhibition of the PI3K/AKT pathway. The miR-429/EPDR1 axis might provide novel therapeutic targets for individualized treatment of EOC patients in the future.
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Affiliation(s)
- Zhendan Zhao
- Department of Gynecology and Obstetrics, Qilu Hospital of Shandong University, Jinan, China
- Laboratory of Basic Medical Sciences, Qilu Hospital of Shandong University, Jinan, China
| | - Zhiling Wang
- Department of Gynecology and Obstetrics, Qilu Hospital of Shandong University, Jinan, China
- Laboratory of Basic Medical Sciences, Qilu Hospital of Shandong University, Jinan, China
| | - Pengling Wang
- Department of Gynecology and Obstetrics, Qilu Hospital of Shandong University, Jinan, China
- Laboratory of Basic Medical Sciences, Qilu Hospital of Shandong University, Jinan, China
| | - Shujie Liu
- Department of Gynecology and Obstetrics, Qilu Hospital of Shandong University, Jinan, China
- Department of Obstetrics and Gynecology, Zibo Spring Hospital Co., Ltd., Zibo, China
| | - Yingwei Li
- Department of Gynecology and Obstetrics, Qilu Hospital of Shandong University, Jinan, China
| | - Xingsheng Yang
- Department of Gynecology and Obstetrics, Qilu Hospital of Shandong University, Jinan, China
- *Correspondence: Xingsheng Yang ,
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