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Luo Y, Yang L, Wu H, Xu H, Peng J, Wang Y, Zhou F. Exploring the Molecular Mechanism of Comorbidity of Type 2 Diabetes Mellitus and Colorectal Cancer: Insights from Bulk Omics and Single-Cell Sequencing Validation. Biomolecules 2024; 14:693. [PMID: 38927096 PMCID: PMC11201668 DOI: 10.3390/biom14060693] [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: 03/08/2024] [Revised: 06/06/2024] [Accepted: 06/08/2024] [Indexed: 06/28/2024] Open
Abstract
The relationship between type 2 diabetes mellitus (T2DM) and colorectal cancer (CRC) has long been extensively recognized, but their crosstalk mechanisms based on gene regulation remain elusive. In our study, for the first time, bulk RNA-seq and single-cell RNA-seq data were used to explore the shared molecular mechanisms between T2DM and CRC. Moreover, Connectivity Map and molecular docking were employed to determine potential drugs targeting the candidate targets. Eight genes (EVPL, TACSTD2, SOX4, ETV4, LY6E, MLXIPL, ENTPD3, UGP2) were identified as characteristic comorbidity genes for T2DM and CRC, with EVPL and ENTPD3 further identified as core comorbidity genes. Our results demonstrated that upregulation of EVPL and downregulation of ENTPD3 were intrinsic molecular features throughout T2DM and CRC and were significantly associated with immune responses, immune processes, and abnormal immune landscapes in both diseases. Single-cell analysis highlighted a cancer-associated fibroblast (CAF) subset that specifically expressed ENTPD3 in CRC, which exhibited high heterogeneity and unique tumor-suppressive features that were completely different from classical cancer-promoting CAFs. Furthermore, ENTPD3+ CAFs could notably predict immunotherapy response in CRC, holding promise to be an immunotherapy biomarker at the single-cell level. Finally, we identified that droperidol may be a novel drug simultaneously targeting EVPL and ENTPD3. In conclusion, previous studies have often focused solely on metabolic alterations common to T2DM and CRC. Our study establishes EVPL and ENTPD3 as characteristic molecules and immune biomarkers of comorbidity in T2DM and CRC patients, and emphasizes the importance of considering immunological mechanisms in the co-development of T2DM and CRC.
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Affiliation(s)
- Yongge Luo
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
- Hubei Key Laboratory of Tumor Biological Behaviors, Wuhan 430071, China
| | - Lei Yang
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
- Hubei Key Laboratory of Tumor Biological Behaviors, Wuhan 430071, China
- Hubei Provincial Clinical Research Center for Cancer, Wuhan 430071, China
| | - Han Wu
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
- Hubei Key Laboratory of Tumor Biological Behaviors, Wuhan 430071, China
- Hubei Provincial Clinical Research Center for Cancer, Wuhan 430071, China
| | - Hui Xu
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
- Hubei Key Laboratory of Tumor Biological Behaviors, Wuhan 430071, China
- Hubei Provincial Clinical Research Center for Cancer, Wuhan 430071, China
| | - Jin Peng
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
- Hubei Key Laboratory of Tumor Biological Behaviors, Wuhan 430071, China
- Hubei Provincial Clinical Research Center for Cancer, Wuhan 430071, China
| | - You Wang
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
- Hubei Key Laboratory of Tumor Biological Behaviors, Wuhan 430071, China
- Hubei Provincial Clinical Research Center for Cancer, Wuhan 430071, China
| | - Fuxiang Zhou
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
- Hubei Key Laboratory of Tumor Biological Behaviors, Wuhan 430071, China
- Hubei Provincial Clinical Research Center for Cancer, Wuhan 430071, China
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2
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Dube G, Tiamiou A, Bizet M, Boumahd Y, Gasmi I, Crake R, Bellier J, Nokin MJ, Calonne E, Deplus R, Wissocq T, Peulen O, Castronovo V, Fuks F, Bellahcène A. Methylglyoxal: a novel upstream regulator of DNA methylation. J Exp Clin Cancer Res 2023; 42:78. [PMID: 36998085 PMCID: PMC10064647 DOI: 10.1186/s13046-023-02637-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 03/02/2023] [Indexed: 04/01/2023] Open
Abstract
BACKGROUND Aerobic glycolysis, also known as the Warburg effect, is predominantly upregulated in a variety of solid tumors, including breast cancer. We have previously reported that methylglyoxal (MG), a very reactive by-product of glycolysis, unexpectedly enhanced the metastatic potential in triple negative breast cancer (TNBC) cells. MG and MG-derived glycation products have been associated with various diseases, such as diabetes, neurodegenerative disorders, and cancer. Glyoxalase 1 (GLO1) exerts an anti-glycation defense by detoxifying MG to D-lactate. METHODS Here, we used our validated model consisting of stable GLO1 depletion to induce MG stress in TNBC cells. Using genome-scale DNA methylation analysis, we report that this condition resulted in DNA hypermethylation in TNBC cells and xenografts. RESULTS GLO1-depleted breast cancer cells showed elevated expression of DNMT3B methyltransferase and significant loss of metastasis-related tumor suppressor genes, as assessed using integrated analysis of methylome and transcriptome data. Interestingly, MG scavengers revealed to be as potent as typical DNA demethylating agents at triggering the re-expression of representative silenced genes. Importantly, we delineated an epigenomic MG signature that effectively stratified TNBC patients based on survival. CONCLUSION This study emphasizes the importance of MG oncometabolite, occurring downstream of the Warburg effect, as a novel epigenetic regulator and proposes MG scavengers to reverse altered patterns of gene expression in TNBC.
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Affiliation(s)
- Gaurav Dube
- Laboratory of Cancer Epigenetics, Faculty of Medicine, ULB-Cancer Research Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Assia Tiamiou
- Metastasis Research Laboratory, GIGA-Cancer, GIGA Institute, University of Liège, Liège, Belgium
| | - Martin Bizet
- Laboratory of Cancer Epigenetics, Faculty of Medicine, ULB-Cancer Research Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Yasmine Boumahd
- Metastasis Research Laboratory, GIGA-Cancer, GIGA Institute, University of Liège, Liège, Belgium
| | - Imène Gasmi
- Metastasis Research Laboratory, GIGA-Cancer, GIGA Institute, University of Liège, Liège, Belgium
| | - Rebekah Crake
- Metastasis Research Laboratory, GIGA-Cancer, GIGA Institute, University of Liège, Liège, Belgium
| | - Justine Bellier
- Metastasis Research Laboratory, GIGA-Cancer, GIGA Institute, University of Liège, Liège, Belgium
| | - Marie-Julie Nokin
- Metastasis Research Laboratory, GIGA-Cancer, GIGA Institute, University of Liège, Liège, Belgium
| | - Emilie Calonne
- Laboratory of Cancer Epigenetics, Faculty of Medicine, ULB-Cancer Research Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Rachel Deplus
- Laboratory of Cancer Epigenetics, Faculty of Medicine, ULB-Cancer Research Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Tom Wissocq
- Metastasis Research Laboratory, GIGA-Cancer, GIGA Institute, University of Liège, Liège, Belgium
| | - Olivier Peulen
- Metastasis Research Laboratory, GIGA-Cancer, GIGA Institute, University of Liège, Liège, Belgium
| | - Vincent Castronovo
- Metastasis Research Laboratory, GIGA-Cancer, GIGA Institute, University of Liège, Liège, Belgium
| | - François Fuks
- Laboratory of Cancer Epigenetics, Faculty of Medicine, ULB-Cancer Research Center (U-CRC), Université Libre de Bruxelles (ULB), Brussels, Belgium
- WELBIO (Walloon Excellence in Lifesciences & Biotechnology), Brussels, Belgium
| | - Akeila Bellahcène
- Metastasis Research Laboratory, GIGA-Cancer, GIGA Institute, University of Liège, Liège, Belgium.
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Elghzaly AA, Sun C, Looger LL, Hirose M, Salama M, Khalil NM, Behiry ME, Hegazy MT, Hussein MA, Salem MN, Eltoraby E, Tawhid Z, Alwasefy M, Allam W, El-Shiekh I, Elserafy M, Abdelnaser A, Hashish S, Shebl N, Shahba AA, Elgirby A, Hassab A, Refay K, El-Touchy HM, Youssef A, Shabacy F, Hashim AA, Abdelzaher A, Alshebini E, Fayez D, El-Bakry SA, Elzohri MH, Abdelsalam EN, El-Khamisy SF, Ibrahim S, Ragab G, Nath SK. Genome-wide association study for systemic lupus erythematosus in an egyptian population. Front Genet 2022; 13:948505. [PMID: 36324510 PMCID: PMC9619055 DOI: 10.3389/fgene.2022.948505] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 09/30/2022] [Indexed: 04/11/2024] Open
Abstract
Systemic lupus erythematosus (SLE) susceptibility has a strong genetic component. Genome-wide association studies (GWAS) across trans-ancestral populations show both common and distinct genetic variants of susceptibility across European and Asian ancestries, while many other ethnic populations remain underexplored. We conducted the first SLE GWAS on Egyptians-an admixed North African/Middle Eastern population-using 537 patients and 883 controls. To identify novel susceptibility loci and replicate previously known loci, we performed imputation-based association analysis with 6,382,276 SNPs while accounting for individual admixture. We validated the association analysis using adaptive permutation tests (n = 109). We identified a novel genome-wide significant locus near IRS1/miR-5702 (Pcorrected = 1.98 × 10-8) and eight novel suggestive loci (Pcorrected < 1.0 × 10-5). We also replicated (Pperm < 0.01) 97 previously known loci with at least one associated nearby SNP, with ITGAM, DEF6-PPARD and IRF5 the top three replicated loci. SNPs correlated (r 2 > 0.8) with lead SNPs from four suggestive loci (ARMC9, DIAPH3, IFLDT1, and ENTPD3) were associated with differential gene expression (3.5 × 10-95 < p < 1.0 × 10-2) across diverse tissues. These loci are involved in cellular proliferation and invasion-pathways prominent in lupus and nephritis. Our study highlights the utility of GWAS in an admixed Egyptian population for delineating new genetic associations and for understanding SLE pathogenesis.
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Affiliation(s)
- Ashraf A. Elghzaly
- Department of Clinical Pathology, Faculty of Medicine, Mansoura University, El-Mansoura, Egypt
| | - Celi Sun
- Arthritis and Clinical Immunology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, United States
| | - Loren L. Looger
- Department of Neurosciences, Howard Hughes Medical Institute, University of California, San Diego, San Diego, CA, United States
| | - Misa Hirose
- Division of Genetics, Lübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany
| | - Mohamed Salama
- Institute of Global Health and Human Ecology, The American University in Cairo, New Cairo, Egypt
| | - Noha M. Khalil
- Rheumatology and Clinical Immunology Unit, Department of Internal Medicine, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Mervat Essam Behiry
- Rheumatology and Clinical Immunology Unit, Department of Internal Medicine, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Mohamed Tharwat Hegazy
- Rheumatology and Clinical Immunology Unit, Department of Internal Medicine, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Mohamed Ahmed Hussein
- Rheumatology and Clinical Immunology Unit, Department of Internal Medicine, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Mohamad Nabil Salem
- Department of Internal Medicine, Faculty of Medicine, Beni-Suef University, Beni Suef, Egypt
| | - Ehab Eltoraby
- Department of Internal Medicine, Faculty of Medicine, Mansoura University, El-Mansoura, Egypt
| | - Ziyad Tawhid
- Department of Clinical Pathology, Faculty of Medicine, Mansoura University, El-Mansoura, Egypt
| | - Mona Alwasefy
- Department of Clinical Pathology, Faculty of Medicine, Mansoura University, El-Mansoura, Egypt
| | - Walaa Allam
- Center for Genomics, Helmy Institute for Medical Sciences, Zewail City of Science and Technology, Giza, Egypt
| | - Iman El-Shiekh
- Center for Genomics, Helmy Institute for Medical Sciences, Zewail City of Science and Technology, Giza, Egypt
| | - Menattallah Elserafy
- Center for Genomics, Helmy Institute for Medical Sciences, Zewail City of Science and Technology, Giza, Egypt
| | - Anwar Abdelnaser
- Institute of Global Health and Human Ecology, The American University in Cairo, New Cairo, Egypt
| | - Sara Hashish
- Institute of Global Health and Human Ecology, The American University in Cairo, New Cairo, Egypt
| | - Nourhan Shebl
- Institute of Global Health and Human Ecology, The American University in Cairo, New Cairo, Egypt
| | | | - Amira Elgirby
- Department of Internal Medicine, Faculty of Medicine, Alexandria University, Bab Sharqi, Egypt
| | - Amina Hassab
- Department of Clinical Pathology, Faculty of Medicine, Alexandria University, Bab Sharqi, Egypt
| | - Khalida Refay
- Department of Internal Medicine, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | | | - Ali Youssef
- Department of Rheumatology and Immunology, Faculty of Medicine, Benha University Hospital, Benha, Egypt
| | - Fatma Shabacy
- Department of Rheumatology and Immunology, Faculty of Medicine, Benha University Hospital, Benha, Egypt
| | | | - Asmaa Abdelzaher
- Department of Clinical Pathology, Faculty of Medicine, South Valley University, Qena, Egypt
| | - Emad Alshebini
- Department of Internal Medicine, Faculty of Medicine, Menoufia University, Al Minufiyah, Egypt
| | - Dalia Fayez
- Rheumatology and Clinical Immunology Unit, Department of Internal Medicine, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Samah A. El-Bakry
- Rheumatology and Clinical Immunology Unit, Department of Internal Medicine, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Mona H. Elzohri
- Department of Internal Medicine, Faculty of Medicine, Assiut University, Asyut, Egypt
| | | | - Sherif F. El-Khamisy
- Center for Genomics, Helmy Institute for Medical Sciences, Zewail City of Science and Technology, Giza, Egypt
- The Healthy Lifespan Institute, University of Sheffield, Sheffield, United Kingdom
- The Institute of Cancer Therapeutics, University of Bradford, Bradford, United Kingdom
| | - Saleh Ibrahim
- Division of Genetics, Lübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany
| | - Gaafar Ragab
- Rheumatology and Clinical Immunology Unit, Department of Internal Medicine, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Swapan K. Nath
- Arthritis and Clinical Immunology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, United States
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Mondal T, Loffredo CA, Trnovec T, Palkovicova Murinova L, Noreen Z, Nnanabu T, Conka K, Drobna B, Ghosh S. Gene expression signatures in PCB-exposed Slovak children in relation to their environmental exposures and socio-physical characteristics. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:60531-60541. [PMID: 35420343 PMCID: PMC9427901 DOI: 10.1007/s11356-022-20018-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 03/28/2022] [Indexed: 06/14/2023]
Abstract
Our previous gene expression studies in a PCB-exposed cohort of young children in Slovakia revealed that early-life exposures to PCBs and other organochlorine compounds were associated with significant alterations across several pathogenetic pathways. The present study was undertaken to further explore the high-throughput qRT-PCR-based gene expression effects by using TaqMan low-density array (TLDA) for selected genes in a sample of 55 children from the cohort. We analyzed the transcriptional changes of 11 genes in relation to PCB and organochlorine pesticide exposure levels (including DDT, DDE, HCH, and HCB), and to BMI and ethnicity in this cohort. The results indicated an overall downregulation of expression of these genes. Maximum downregulation (in fold change) was observed in the ENTPD3 gene, and the minimum level of downregulation was in CYP2D6. As per our multinomial regression model study, downregulation of LEPR gene was significantly directly correlated with all the exposure variables. Downregulation of APC, ARNT, CYP2D6, LEPR, LRP12, and MYC genes was directly correlated with BMI (kg/m2) of the individuals. Gender-specific differences in gene expression were observed in CYP2D6 (p-value 0.0001) and LEPR (p-value 0.028), while downregulation of CYP2D6 (p-value 0.01), LEPR (p-value 0.02), LRP12 (p-value 0.04), and MYC (p-value 0.02) genes was consistently observed in Roma children compared to Caucasians. The investigation of such health disparities must be emphasized in future research, together with interventions to reduce the health consequences of PCB exposures. In this context, we emphasize the importance of biomarker-based approaches to future research on genetic susceptibility to the effects of these compounds.
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Affiliation(s)
- Tanmoy Mondal
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, Salt Lake, Kolkata, 700064, India
| | | | - Tomas Trnovec
- Department of Environmental Medicine, Faculty of Public Health, Slovak Medical University, Bratislava, Slovak Republic
| | - Lubica Palkovicova Murinova
- Department of Environmental Medicine, Faculty of Public Health, Slovak Medical University, Bratislava, Slovak Republic
| | - Zarish Noreen
- Department of Healthcare Biotechnology, National University of Sciences and Technology (NUST), Islamabad, 44000, Pakistan
| | - Thomas Nnanabu
- Departments of Biology, Howard University, 415 College Street, NW, Room 408, EE Just Hall, Washington, DC, 20059, USA
| | - Kamil Conka
- Department of Toxic Organic Pollutants, Faculty of Medicine, Slovak Medical University, Bratislava, Slovak Republic
| | - Beata Drobna
- Department of Toxic Organic Pollutants, Faculty of Medicine, Slovak Medical University, Bratislava, Slovak Republic
| | - Somiranjan Ghosh
- Departments of Biology, Howard University, 415 College Street, NW, Room 408, EE Just Hall, Washington, DC, 20059, USA.
- Departments of Pediatrics and Child Health, College of Medicine, Howard University, Washington, DC, 20059, USA.
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5
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Li H, Zhou L, Zhou J, Li Q, Ji Q. Underlying mechanisms and drug intervention strategies for the tumour microenvironment. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2021; 40:97. [PMID: 33722297 PMCID: PMC7962349 DOI: 10.1186/s13046-021-01893-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 02/24/2021] [Indexed: 02/08/2023]
Abstract
Cancer occurs in a complex tissue environment, and its progression depends largely on the tumour microenvironment (TME). The TME has a highly complex and comprehensive system accompanied by dynamic changes and special biological characteristics, such as hypoxia, nutrient deficiency, inflammation, immunosuppression and cytokine production. In addition, a large number of cancer-associated biomolecules and signalling pathways are involved in the above bioprocesses. This paper reviews our understanding of the TME and describes its biological and molecular characterization in different stages of cancer development. Furthermore, we discuss in detail the intervention strategies for the critical points of the TME, including chemotherapy, targeted therapy, immunotherapy, natural products from traditional Chinese medicine, combined drug therapy, etc., providing a scientific basis for cancer therapy from the perspective of key molecular targets in the TME.
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Affiliation(s)
- Haoze Li
- Department of Medical Oncology and Cancer Institute, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.,Academy of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Lihong Zhou
- Department of Medical Oncology and Cancer Institute, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.,Academy of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Jing Zhou
- Department of Medical Oncology and Cancer Institute, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.,Academy of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Qi Li
- Department of Medical Oncology and Cancer Institute, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China. .,Academy of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Qing Ji
- Department of Medical Oncology and Cancer Institute, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China. .,Academy of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
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Sereesongsaeng N, McDowell SH, Burrows JF, Scott CJ, Burden RE. Cathepsin V suppresses GATA3 protein expression in luminal A breast cancer. Breast Cancer Res 2020; 22:139. [PMID: 33298139 PMCID: PMC7726886 DOI: 10.1186/s13058-020-01376-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 11/30/2020] [Indexed: 12/21/2022] Open
Abstract
Background Lysosomal cysteine protease cathepsin V has previously been shown to exhibit elevated expression in breast cancer tissue and be associated with distant metastasis. Research has also identified that cathepsin V expression is elevated in tumour tissues from numerous other malignancies, but despite this, there has been limited examination of the function of this protease in cancer. Here we investigate the role of cathepsin V in breast cancer in order to delineate the molecular mechanisms by which this protease contributes to tumourigenesis. Methods Lentiviral transductions were used to generate shRNA cell line models, with cell line validation undertaken using RQ-PCR and Western blotting. Phenotypic changes of tumour cell biology were examined using clonogenic and invasion assays. The relationship between GATA3 expression and cathepsin V was primarily analysed using Western blotting. Site-directed mutagenesis was used to generate catalytic mutant and shRNA-resistant constructs to confirm the role of cathepsin V in regulating GATA3 expression. Results We have identified that elevated cathepsin V expression is associated with reduced survival in ER-positive breast cancers. Cathepsin V regulates the expression of GATA3 in ER-positive breast cancers, through promoting its degradation via the proteasome. We have determined that depletion of cathepsin V results in elevated pAkt-1 and reduced GSK-3β expression, which rescues GATA3 from proteasomal degradation. Conclusions In this study, we have identified that cysteine protease cathepsin V can suppress GATA3 expression in ER-positive breast cancers by facilitating its turnover via the proteasome. Therefore, targeting cathepsin V may represent a potential therapeutic strategy in ER-positive breast cancers, by restoring GATA3 protein expression, which is associated with a more favourable clinical outcome. Supplementary Information The online version contains supplementary material available at 10.1186/s13058-020-01376-6.
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Affiliation(s)
- Naphannop Sereesongsaeng
- School of Pharmacy, Medical Biology Centre, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, UK
| | - Sara H McDowell
- School of Pharmacy, Medical Biology Centre, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, UK.,Patrick G Johnston Centre for Cancer Research, Medical Biology Centre, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7AE, UK
| | - James F Burrows
- School of Pharmacy, Medical Biology Centre, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, UK
| | - Christopher J Scott
- Patrick G Johnston Centre for Cancer Research, Medical Biology Centre, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7AE, UK
| | - Roberta E Burden
- School of Pharmacy, Medical Biology Centre, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, UK.
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Zhang M, Wang N, Song P, Fu Y, Ren Y, Li Z, Wang J. LncRNA GATA3-AS1 facilitates tumour progression and immune escape in triple-negative breast cancer through destabilization of GATA3 but stabilization of PD-L1. Cell Prolif 2020; 53:e12855. [PMID: 32687248 PMCID: PMC7507373 DOI: 10.1111/cpr.12855] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 04/27/2020] [Accepted: 05/16/2020] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVES Long non-coding RNAs (lncRNAs) have been demonstrated as crucial regulators in cancer, but whether they are involved in the immune response of cancer cells remains largely undiscovered. GATA3-AS1 is a novel lncRNA that was upregulated in breast cancer (BC) according to online databases. However, its role in triple-negative breast cancer (TNBC) was elusive. METHODS GATA3-AS1 expression in BC tissues and adjacent normal tissues was obtained from online databases. Loss-of-function assays were designed and conducted to verify the functional role of GATA3-AS1 in TNBC cells. Bioinformatic analysis and mechanism experiments were applied to explore the downstream molecular mechanism of GATA3-AS1. Similarly, the upstream mechanism which led to the upregulation of GATA3-AS1 in TNBC cells was also investigated. RESULTS GATA3-AS1 was markedly overexpressed in TNBC tissues and cells. Knockdown of GATA3-AS1 suppressed TNBC cell growth and enhanced the resistance of TNBC cells to immune response. GATA3-AS1 induced the deubiquitination of PD-L1 through miR-676-3p/COPS5 axis. GATA3-AS1 destabilized GATA3 protein by promoting GATA3 ubiquitination. CONCLUSION GATA3-AS1 contributed to TNBC progression and immune evasion through stabilizing PD-L1 protein and degrading GATA3 protein, offering a new target for the treatment of TNBC.
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Affiliation(s)
- Ming Zhang
- Department of Breast SurgeryHarbin Medical University Cancer HospitalHarbinChina
| | - Ning Wang
- Department of Internal NeurologyThe First Hospital of Suihua CitySuihuaChina
| | - Peng Song
- Department of OrthopedicsPeople's Hospital of ZhangqiuJinanChina
| | - Yingqiang Fu
- Department of Breast SurgeryHarbin Medical University Cancer HospitalHarbinChina
| | - Yanlv Ren
- Department of Breast SurgeryHarbin Medical University Cancer HospitalHarbinChina
| | - Zhigao Li
- Department of Breast SurgeryHarbin Medical University Cancer HospitalHarbinChina
| | - Jinsong Wang
- Department of Breast SurgeryHarbin Medical University Cancer HospitalHarbinChina
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