1
|
Atwani R, Nagare RP, Rogers A, Prasad M, Lazar V, Sandusky G, Tong Y, Pin F, Condello S. Integrin-linked kinase-frizzled 7 interaction maintains cancer stem cells to drive platinum resistance in ovarian cancer. J Exp Clin Cancer Res 2024; 43:156. [PMID: 38822429 PMCID: PMC11143768 DOI: 10.1186/s13046-024-03083-y] [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: 02/12/2024] [Accepted: 05/27/2024] [Indexed: 06/03/2024] Open
Abstract
BACKGROUND Platinum-based chemotherapy regimens are a mainstay in the management of ovarian cancer (OC), but emergence of chemoresistance poses a significant clinical challenge. The persistence of ovarian cancer stem cells (OCSCs) at the end of primary treatment contributes to disease recurrence. Here, we hypothesized that the extracellular matrix protects CSCs during chemotherapy and supports their tumorigenic functions by activating integrin-linked kinase (ILK), a key enzyme in drug resistance. METHODS TCGA datasets and OC models were investigated using an integrated proteomic and gene expression analysis and examined ILK for correlations with chemoresistance pathways and clinical outcomes. Canonical Wnt pathway components, pro-survival signaling, and stemness were examined using OC models. To investigate the role of ILK in the OCSC-phenotype, a novel pharmacological inhibitor of ILK in combination with carboplatin was utilized in vitro and in vivo OC models. RESULTS In response to increased fibronectin secretion and integrin β1 clustering, aberrant ILK activation supported the OCSC phenotype, contributing to OC spheroid proliferation and reduced response to platinum treatment. Complexes formed by ILK with the Wnt receptor frizzled 7 (Fzd7) were detected in tumors and correlated with metastatic progression. Moreover, TCGA datasets confirmed that combined expression of ILK and Fzd7 in high grade serous ovarian tumors is correlated with reduced response to chemotherapy and poor patient outcomes. Mechanistically, interaction of ILK with Fzd7 increased the response to Wnt ligands, thereby amplifying the stemness-associated Wnt/β-catenin signaling. Notably, preclinical studies showed that the novel ILK inhibitor compound 22 (cpd-22) alone disrupted ILK interaction with Fzd7 and CSC proliferation as spheroids. Furthermore, when combined with carboplatin, this disruption led to sustained AKT inhibition, apoptotic damage in OCSCs and reduced tumorigenicity in mice. CONCLUSIONS This "outside-in" signaling mechanism is potentially actionable, and combined targeting of ILK-Fzd7 may lead to new therapeutic approaches to eradicate OCSCs and improve patient outcomes.
Collapse
Affiliation(s)
- Rula Atwani
- Department of Obstetrics and Gynecology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
- Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indianapolis, IN, 46202, USA
| | - Rohit Pravin Nagare
- Department of Obstetrics and Gynecology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
- Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indianapolis, IN, 46202, USA
| | - Amber Rogers
- Department of Obstetrics and Gynecology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
- Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indianapolis, IN, 46202, USA
- Department of Pharmacology & Toxicology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Mayuri Prasad
- Department of Obstetrics and Gynecology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
- Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indianapolis, IN, 46202, USA
| | - Virginie Lazar
- Department of Obstetrics and Gynecology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
- Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indianapolis, IN, 46202, USA
| | - George Sandusky
- Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indianapolis, IN, 46202, USA
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Yan Tong
- Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indianapolis, IN, 46202, USA
- Department of Biostatistics and Health Data Science, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Fabrizio Pin
- Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indianapolis, IN, 46202, USA
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Salvatore Condello
- Department of Obstetrics and Gynecology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA.
- Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indianapolis, IN, 46202, USA.
- Department of Pharmacology & Toxicology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA.
| |
Collapse
|
2
|
Yu Y, Wang J, Guo Q, Luo H. LINC01134: a pivotal oncogene with promising predictive maker and therapeutic target in hepatocellular carcinoma. Front Oncol 2024; 14:1265762. [PMID: 38450182 PMCID: PMC10915649 DOI: 10.3389/fonc.2024.1265762] [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: 07/23/2023] [Accepted: 01/29/2024] [Indexed: 03/08/2024] Open
Abstract
Hepatocellular carcinoma (HCC) represents a leading and fatal malignancy within the gastrointestinal tract. Recent advancements highlight the pivotal role of long non-coding RNAs (lncRNAs) in diverse biological pathways and pathologies, particularly in tumorigenesis. LINC01134, a particular lncRNA, has attracted considerable attention due to its oncogenic potential in hepatoma. Current research underscores LINC01134's potential in augmenting the onset and progression of HCC, with notable implications in drug resistance. This review comprehensively explores the molecular functions and regulatory mechanisms of LINC01134 in HCC, offering a fresh perspective for therapeutic interventions. By delving into LINC01134's multifaceted roles, we aim to foster novel strategies in HCC management.
Collapse
Affiliation(s)
- Yutian Yu
- Department of Spleen and Stomach Diseases, Jiujiang Hospital of Traditional Chinese Medicine, Jiujiang, Jiangxi, China
| | - Jialing Wang
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Qingfa Guo
- Second Clinical Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Hongliang Luo
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| |
Collapse
|
3
|
Chehelgerdi M, Behdarvand Dehkordi F, Chehelgerdi M, Kabiri H, Salehian-Dehkordi H, Abdolvand M, Salmanizadeh S, Rashidi M, Niazmand A, Ahmadi S, Feizbakhshan S, Kabiri S, Vatandoost N, Ranjbarnejad T. Exploring the promising potential of induced pluripotent stem cells in cancer research and therapy. Mol Cancer 2023; 22:189. [PMID: 38017433 PMCID: PMC10683363 DOI: 10.1186/s12943-023-01873-0] [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: 07/04/2023] [Accepted: 09/27/2023] [Indexed: 11/30/2023] Open
Abstract
The advent of iPSCs has brought about a significant transformation in stem cell research, opening up promising avenues for advancing cancer treatment. The formation of cancer is a multifaceted process influenced by genetic, epigenetic, and environmental factors. iPSCs offer a distinctive platform for investigating the origin of cancer, paving the way for novel approaches to cancer treatment, drug testing, and tailored medical interventions. This review article will provide an overview of the science behind iPSCs, the current limitations and challenges in iPSC-based cancer therapy, the ethical and social implications, and the comparative analysis with other stem cell types for cancer treatment. The article will also discuss the applications of iPSCs in tumorigenesis, the future of iPSCs in tumorigenesis research, and highlight successful case studies utilizing iPSCs in tumorigenesis research. The conclusion will summarize the advancements made in iPSC-based tumorigenesis research and the importance of continued investment in iPSC research to unlock the full potential of these cells.
Collapse
Affiliation(s)
- Matin Chehelgerdi
- Novin Genome (NG) Lab, Research and Development Center for Biotechnology, Shahrekord, Iran
- Young Researchers and Elite Club, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
| | - Fereshteh Behdarvand Dehkordi
- Novin Genome (NG) Lab, Research and Development Center for Biotechnology, Shahrekord, Iran
- Young Researchers and Elite Club, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
| | - Mohammad Chehelgerdi
- Novin Genome (NG) Lab, Research and Development Center for Biotechnology, Shahrekord, Iran.
- Young Researchers and Elite Club, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran.
| | - Hamidreza Kabiri
- Novin Genome (NG) Lab, Research and Development Center for Biotechnology, Shahrekord, Iran
- Young Researchers and Elite Club, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
| | | | - Mohammad Abdolvand
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Science, Isfahan, Iran
| | - Sharareh Salmanizadeh
- Department of Cell and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Hezar-Jereeb Street, Isfahan, 81746-73441, Iran
| | - Mohsen Rashidi
- Department Pharmacology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
- The Health of Plant and Livestock Products Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Anoosha Niazmand
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Science, Isfahan, Iran
| | - Saba Ahmadi
- Department of Molecular and Medical Genetics, Tbilisi State Medical University, Tbilisi, Georgia
| | - Sara Feizbakhshan
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Science, Isfahan, Iran
| | - Saber Kabiri
- Novin Genome (NG) Lab, Research and Development Center for Biotechnology, Shahrekord, Iran
- Young Researchers and Elite Club, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
| | - Nasimeh Vatandoost
- Pediatric Inherited Diseases Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Tayebeh Ranjbarnejad
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Science, Isfahan, Iran
| |
Collapse
|
4
|
Wang H, Liu L, Liu Q, Zheng J, Zheng Q, Chen Y, Xia H, Wu Q, Sun Y. Identification of upregulated exosomal miRNAs between A2780 and A2780/DDP human ovarian cancer cells by high-throughput sequencing. J Ovarian Res 2023; 16:94. [PMID: 37179363 PMCID: PMC10182643 DOI: 10.1186/s13048-023-01157-7] [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: 01/12/2022] [Accepted: 04/09/2023] [Indexed: 05/15/2023] Open
Abstract
Exosomal miRNAs are known to play important roles in ovarian cancer and chemotherapeutic resistance. However, a systematic evaluation of characteristics of exosomal miRNAs involved in cisplatin resistance in ovarian cancer remains totally unclear. Exosomes (Exo-A2780, Exo-A2780/DDP) were extracted from cisplatin-sensitive cells (A2780) and cisplatin-resistant cells (A2780/DDP). Differential exosomal miRNA expression profiles were found by high-throughput sequencing (HTS). Target genes of the exo-miRNAs were predicted by using two online databases to increase the prediction accuracy. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses were utilized to find biological relationships with chemoresistance. RT‒qPCR of three exosomal miRNAs was performed, and a protein‒protein interaction (PPI) network was established to identify the hub genes. The GDSC database was used to prove the association between hsa-miR-675-3p expression and the IC50 value. An integrated miRNA-mRNA network was constructed to predict miRNA-mRNA associations. The connection between hsa-miR-675-3p and ovarian cancer was discovered by immune microenvironment analyses. The upregulated exosomal miRNAs could regulate gene targets through signalling pathways such as the Ras, PI3K/Akt, Wnt, and ErbB pathways. GO and KEGG analyses indicated that the target genes were involved in protein binding, transcription regulator activity and DNA binding. The RT‒qPCR results were consistent with the HTS data, and the results of PPI network analysis suggested that FMR1 and CD86 were the hub genes. GDSC database analysis and construction of the integrated miRNA-mRNA network suggested that hsa-miR-675-3p was associated with drug resistance. Immune microenvironment analyses showed that hsa-miR-675-3p was crucial in ovarian cancer. The study suggested that exosomal hsa-miR-675-3p is a potential target for treating ovarian cancer and overcoming cisplatin resistance.
Collapse
Affiliation(s)
- Huihui Wang
- Department of Gynecology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, No.420 Fuma Road, Jin'an District, Fuzhou, 350014, Fujian Province, China
- Department of Anesthesiology, Wenzhou Central Hospital, Wenzhou, 325099, Zhejiang Province, China
| | - Li Liu
- Department of Gynecology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, No.420 Fuma Road, Jin'an District, Fuzhou, 350014, Fujian Province, China
| | - Qinying Liu
- Fujian Provincial Key Laboratory of Tumor Biotherapy, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fujian Province, 350014, Fuzhou, China
| | - Jianfeng Zheng
- Department of Gynecology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, No.420 Fuma Road, Jin'an District, Fuzhou, 350014, Fujian Province, China
| | - Qiuhong Zheng
- Fujian Provincial Key Laboratory of Tumor Biotherapy, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fujian Province, 350014, Fuzhou, China
| | - Yuwei Chen
- Department of Gynecology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, No.420 Fuma Road, Jin'an District, Fuzhou, 350014, Fujian Province, China
| | - Hongmei Xia
- Department of Gynecology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, No.420 Fuma Road, Jin'an District, Fuzhou, 350014, Fujian Province, China
| | - Qiaoling Wu
- Department of Gynecology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, No.420 Fuma Road, Jin'an District, Fuzhou, 350014, Fujian Province, China
| | - Yang Sun
- Department of Gynecology, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, No.420 Fuma Road, Jin'an District, Fuzhou, 350014, Fujian Province, China.
- Department of Gynecology, Fujian Cancer Hospital, Fujian Province, 350014, Fuzhou, China.
| |
Collapse
|
5
|
Increased Expression of the RBPMS Splice Variants Inhibits Cell Proliferation in Ovarian Cancer Cells. Int J Mol Sci 2022; 23:ijms232314742. [PMID: 36499073 PMCID: PMC9738375 DOI: 10.3390/ijms232314742] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022] Open
Abstract
RNA-Binding Protein with Multiple Splicing (RBPMS) is a member of family proteins that bind to nascent RNA transcripts and regulate their splicing, localization, and stability. Evidence indicates that RBPMS controls the activity of transcription factors associated with cell growth and proliferation, including AP-1 and Smads. Three major RBPMS protein splice variants (RBPMSA, RBPMSB, and RBPMSC) have been described in the literature. We previously reported that reduced RBPMS levels decreased the sensitivity of ovarian cancer cells to cisplatin treatment. However, little is known about the biological role of the RBPMS splice variants in ovarian cancer cells. We performed RT-PCR and Western blots and observed that both RBPMSA and RBPMSC are reduced at the mRNA and protein levels in cisplatin resistant as compared with cisplatin sensitive ovarian cancer cells. The mRNA and protein levels of RBPMSB were not detectable in any of the ovarian cancer cells tested. To better understand the biological role of each RBPMSA and RBPMSC, we transfected these two splice variants in the A2780CP20 and OVCAR3CIS cisplatin resistant ovarian cancer cells and performed cell proliferation, cell migration, and invasion assays. Compared with control clones, a significant reduction in the number of colonies, colony size, cell migration, and invasion was observed with RBPMSA and RBPMSC overexpressed cells. Moreover, A2780CP20-RBPMSA and A2780CP20-RBPMSC clones showed reduced senescence-associated β-galactosidase (β-Gal)-levels when compared with control clones. A2780CP20-RBPMSA clones were more sensitive to cisplatin treatment as compared with A2780CP20-RBPMSC clones. The A2780CP20-RBPMSA and A2780CP20-RBPMSC clones subcutaneously injected into athymic nude mice formed smaller tumors as compared with A2780CP20-EV control group. Additionally, immunohistochemical analysis showed lower proliferation (Ki67) and angiogenesis (CD31) staining in tissue sections of A2780CP20-RBPMSA and A2780CP20-RBPMSC tumors compared with controls. RNAseq studies revealed many common RNA transcripts altered in A2780CP20-RBPMSA and A2780CP20-RBPMSC clones. Unique RNA transcripts deregulated by each RBPMS variant were also observed. Kaplan-Meier (KM) plotter database information identified clinically relevant RBPMSA and RBPMSC downstream effectors. These studies suggest that increased levels of RBPMSA and RBPMSC reduce cell proliferation in ovarian cancer cells. However, only RBPMSA expression levels were associated with the sensitivity of ovarian cancer cells to cisplatin treatment.
Collapse
|
6
|
Condello S, Prasad M, Atwani R, Matei D. Tissue transglutaminase activates integrin-linked kinase and β-catenin in ovarian cancer. J Biol Chem 2022; 298:102242. [PMID: 35810788 PMCID: PMC9358478 DOI: 10.1016/j.jbc.2022.102242] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 06/21/2022] [Accepted: 06/21/2022] [Indexed: 10/26/2022] Open
Abstract
Ovarian cancer (OC) is the most lethal gynecological cancer. OC cells have high proliferative capacity, are invasive, resist apoptosis, and tumors often display rearrangement of extracellular matrix (ECM) components, contributing to accelerated tumor progression. The multifunctional protein tissue transglutaminase (TG2) is known to be secreted in the tumor microenvironment (TME), where it interacts with fibronectin (FN) and the cell surface receptor β1 integrin. However, the mechanistic role of TG2 in cancer cell proliferation is unknown. Here, we demonstrate TG2 directly interacts with and facilitates the phosphorylation and activation of the integrin effector protein integrin-linked kinase (ILK) at Ser246. We show TG2 and p-Ser246-ILK form a complex that is detectable in patient-derived OC primary cells grown on FN-coated slides. In addition, we show co-expression of TGM2 and ILK correlates with poor clinical outcome. Mechanistically, we demonstrate TG2-mediated ILK activation causes phosphorylation of glycogen synthase kinase-3α/β (GSK-3α/β), allowing β-catenin nuclear translocation and transcriptional activity. Furthermore, inhibition of TG2 and ILK using small molecules, neutralizing antibodies, or shRNA-mediated knockdown block cell adhesion to the FN matrix, as well as the Wnt receptor response to the Wnt-3A ligand, and ultimately, cell adhesion, growth, and migration. In conclusion, we demonstrate TG2 directly interacts with and activates ILK in OC cells and tumors, and define a new mechanism which links ECM cues with β-catenin signaling in OC. These results suggest a central role of TG2/FN/integrin clusters in ECM rearrangement and indicate downstream effector ILK may represent a potential new therapeutic target in OC.
Collapse
Affiliation(s)
- Salvatore Condello
- Department of Obstetrics and Gynecology, Indiana University School of Medicine, Indianapolis, IN 46202; Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, IN 46202.
| | - Mayuri Prasad
- Department of Obstetrics and Gynecology, Indiana University School of Medicine, Indianapolis, IN 46202; Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, IN 46202
| | - Rula Atwani
- Department of Obstetrics and Gynecology, Indiana University School of Medicine, Indianapolis, IN 46202; Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, IN 46202
| | - Daniela Matei
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611; Robert H Lurie Comprehensive Cancer Center, Chicago, IL, USA; Jesse Brown VA Medical Center, Chicago, IL, USA
| |
Collapse
|
7
|
Sanchez-Cruz P, Vazquez K, Lozada EL, Valiyeva F, Sharma R, Vivas PE, Alegria AE. Photosensitized co-generation of nitric oxide and singlet oxygen Enhanced toxicity against ovarian cancer cells. JOURNAL OF NANOPARTICLE RESEARCH : AN INTERDISCIPLINARY FORUM FOR NANOSCALE SCIENCE AND TECHNOLOGY 2022; 24:82. [PMID: 37035485 PMCID: PMC10081534 DOI: 10.1007/s11051-022-05463-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 03/23/2022] [Indexed: 06/19/2023]
Abstract
Near micromolar concentrations of nitric oxide (NO) induce tumor cells death. However, an appropriate NO load has to be delivered selectively to the tumor site in order to avoid NO loss and secondary NO-induced effects. The encapsulation of millimolar concentrations of a NO source and an appropriate trigger of NO release within phospatidylcholine-based liposomes should provide an efficient tool for the selective release of the needed NO payload. In this work we report the photosensitized generation of singlet oxygen and NO from folate-targeted PEGylated liposomes, containing AlPcS4 as the sensitizer and S-nitrosoglutathione (GSNO), in millimolar amounts, as the NO source. Amounts of singlet oxygen detected outside the liposome when using PEGylated liposomes are near 200 % larger when GSNO is present inside the liposomes as compared to its absence. These liposomes, conjugated to folate, were found to enhance the photosensitized cytotoxicity to A2780CP20 ovarian cancer cells as compared to liposomes containing the sensitizer but no GSNO (30 % as compared to 70 % cell viability) under the conditions of this work. Fluorescense of AlPcS4 was observed inside cells incubated with folate-conjugated liposomes but not with liposomes without folate. The photosensitized activity enhancement by GSNO increased when light fluence or liposome concentration were increased. The majority of ovarian cancer patients are initially diagnosed with disseminated intra-abdominal disease (stages III-IV) and have a 5-year survival of less than 20%. This work suggests a novel ovarian cancer nodules treatment via the use of tumor-targeted liposome nanoparticles with the capability of generating simultaneously reactive oxygen and nitrogen species upon illumination with near-infrared light.
Collapse
Affiliation(s)
| | - Katerina Vazquez
- Department of Biochemistry, UPR Medical Sciences Campus, San Juan, PR 00936
| | - Eunice L. Lozada
- Comprehensive Cancer Center, UPR Medical Sciences Campus, San Juan, PR 00936
| | - Fatima Valiyeva
- Comprehensive Cancer Center, UPR Medical Sciences Campus, San Juan, PR 00936
| | - Rohit Sharma
- Comprehensive Cancer Center, UPR Medical Sciences Campus, San Juan, PR 00936
| | - Pablo E. Vivas
- Department of Biochemistry, UPR Medical Sciences Campus, San Juan, PR 00936
- Comprehensive Cancer Center, UPR Medical Sciences Campus, San Juan, PR 00936
| | | |
Collapse
|
8
|
Lu Z, Yuan S, Ruan L, Tu Z, Liu H. Partitioning defective 6 homolog alpha (PARD6A) promotes epithelial–mesenchymal transition via integrin β1-ILK-SNAIL1 pathway in ovarian cancer. Cell Death Dis 2022; 13:304. [PMID: 35379775 PMCID: PMC8980072 DOI: 10.1038/s41419-022-04756-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 03/02/2022] [Accepted: 03/17/2022] [Indexed: 11/17/2022]
Abstract
Partitioning-defective protein 6 (Par6) family proteins have been demonstrated to be closely associated with the occurrence and development of cancers. It is well accepted that dysregulation of epithelial–mesenchymal transition (EMT) greatly contributes to carcinogenesis and metastases of ovarian cancer. So far, the roles of Par6 in EMT of ovarian cancer are not clear. Functional experiments were carried out to study the roles of PARD6A in EMT of ovarian cancer in vitro and in vivo, and EMT pathways potentially affected by PARD6A expression were screened. We found that PARD6A was significantly highly expressed in tissues of ovarian cancer patients in III-IV stages, poorly differentiated or with lymphatic metastases versus I-II stages, moderately or well differentiated, or without lymphatic metastases, respectively. PARD6A knockdown suppressed EMT of SKOV3 and A2780 cells in vitro and ovarian cancer metastasis in vivo, while overexpression of PARD6A promoted EMT in HO8910 and OVCAR8 cells. It was indicated that PARD6A affected EMT of ovarian cancer cells through SNAIL1 signaling pathway and subsequently modulated the expression of VIMENTIN and E-cadherin, which was further confirmed by knockdown and overexpression of SNAIL1 experiments. PARD6A was also demonstrated to regulate expression of SNAIL1 by modulating integrin β1 and ILK proteins, specifically it was shown that the transcription of SNAIL1 was regulated by ILK in this study. In addition, expression of ILK in ovarian cancer tissues was demonstrated to be correlated with tumor stages and lymphatic metastases clinically. In this study, we identified a novel role of PARD6A as an inducer of cell migration and invasion, which is likely to play an important role in metastasis of ovarian cancer. The molecular pathways of EMT mediated by PARD6A-Integrin β1-ILK-SNAIL1 and finally implemented by E-cadherin and VIMENTIN may provide a novel strategy for drug development for ovarian cancer therapy in the near future.
Collapse
|
9
|
Górska A, Mazur AJ. Integrin-linked kinase (ILK): the known vs. the unknown and perspectives. Cell Mol Life Sci 2022; 79:100. [PMID: 35089438 PMCID: PMC8799556 DOI: 10.1007/s00018-021-04104-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 11/29/2021] [Accepted: 12/17/2021] [Indexed: 02/08/2023]
Abstract
Integrin-linked kinase (ILK) is a multifunctional molecular actor in cell-matrix interactions, cell adhesion, and anchorage-dependent cell growth. It combines functions of a signal transductor and a scaffold protein through its interaction with integrins, then facilitating further protein recruitment within the ILK-PINCH-Parvin complex. ILK is involved in crucial cellular processes including proliferation, survival, differentiation, migration, invasion, and angiogenesis, which reflects on systemic changes in the kidney, heart, muscle, skin, and vascular system, also during the embryonal development. Dysfunction of ILK underlies the pathogenesis of various diseases, including the pro-oncogenic activity in tumorigenesis. ILK localizes mostly to the cell membrane and remains an important component of focal adhesion. We do know much about ILK but a lot still remains either uncovered or unclear. Although it was initially classified as a serine/threonine-protein kinase, its catalytical activity is now questioned due to structural and functional issues, leaving the exact molecular mechanism of signal transduction by ILK unsolved. While it is known that the three isoforms of ILK vary in length, the presence of crucial domains, and modification sites, most of the research tends to focus on the main isoform of this protein while the issue of functional differences of ILK2 and ILK3 still awaits clarification. The activity of ILK is regulated on the transcriptional, protein, and post-transcriptional levels. The crucial role of phosphorylation and ubiquitylation has been investigated, but the functions of the vast majority of modifications are still unknown. In the light of all those open issues, here we present an extensive literature survey covering a wide spectrum of latest findings as well as a past-to-present view on controversies regarding ILK, finishing with pointing out some open questions to be resolved by further research.
Collapse
Affiliation(s)
- Agata Górska
- Department of Cell Pathology, Faculty of Biotechnology, University of Wroclaw, ul. Joliot-Curie 14a, 50-383, Wrocław, Poland.
| | - Antonina Joanna Mazur
- Department of Cell Pathology, Faculty of Biotechnology, University of Wroclaw, ul. Joliot-Curie 14a, 50-383, Wrocław, Poland.
| |
Collapse
|
10
|
Rabelo-Fernández RJ, Santiago-Sánchez GS, Sharma RK, Roche-Lima A, Carrion KC, Rivera RAN, Quiñones-Díaz BI, Rajasekaran S, Siddiqui J, Miles W, Rivera YS, Valiyeva F, Vivas-Mejia PE. Reduced RBPMS Levels Promote Cell Proliferation and Decrease Cisplatin Sensitivity in Ovarian Cancer Cells. Int J Mol Sci 2022; 23:535. [PMID: 35008958 PMCID: PMC8745614 DOI: 10.3390/ijms23010535] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 12/28/2021] [Accepted: 12/29/2021] [Indexed: 12/14/2022] Open
Abstract
Worldwide, the number of cancer-related deaths continues to increase due to the ability of cancer cells to become chemotherapy-resistant and metastasize. For women with ovarian cancer, a staggering 70% will become resistant to the front-line therapy, cisplatin. Although many mechanisms of cisplatin resistance have been proposed, the key mechanisms of such resistance remain elusive. The RNA binding protein with multiple splicing (RBPMS) binds to nascent RNA transcripts and regulates splicing, transport, localization, and stability. Evidence indicates that RBPMS also binds to protein members of the AP-1 transcription factor complex repressing its activity. Until now, little has been known about the biological function of RBPMS in ovarian cancer. Accordingly, we interrogated available Internet databases and found that ovarian cancer patients with high RBPMS levels live longer compared to patients with low RBPMS levels. Similarly, immunohistochemical (IHC) analysis in a tissue array of ovarian cancer patient samples showed that serous ovarian cancer tissues showed weaker RBPMS staining when compared with normal ovarian tissues. We generated clustered regularly interspaced short palindromic repeats (CRISPR)-mediated RBPMS knockout vectors that were stably transfected in the high-grade serous ovarian cancer cell line, OVCAR3. The knockout of RBPMS in these cells was confirmed via bioinformatics analysis, real-time PCR, and Western blot analysis. We found that the RBPMS knockout clones grew faster and had increased invasiveness than the control CRISPR clones. RBPMS knockout also reduced the sensitivity of the OVCAR3 cells to cisplatin treatment. Moreover, β-galactosidase (β-Gal) measurements showed that RBPMS knockdown induced senescence in ovarian cancer cells. We performed RNAseq in the RBPMS knockout clones and identified several downstream-RBPMS transcripts, including non-coding RNAs (ncRNAs) and protein-coding genes associated with alteration of the tumor microenvironment as well as those with oncogenic or tumor suppressor capabilities. Moreover, proteomic studies confirmed that RBPMS regulates the expression of proteins involved in cell detoxification, RNA processing, and cytoskeleton network and cell integrity. Interrogation of the Kaplan-Meier (KM) plotter database identified multiple downstream-RBPMS effectors that could be used as prognostic and response-to-therapy biomarkers in ovarian cancer. These studies suggest that RBPMS acts as a tumor suppressor gene and that lower levels of RBPMS promote the cisplatin resistance of ovarian cancer cells.
Collapse
Affiliation(s)
- Robert J. Rabelo-Fernández
- University of Puerto Rico Comprehensive Cancer Center, San Juan, PR 00935, USA; (R.J.R.-F.); (G.S.S.-S.); (R.K.S.); (R.A.N.R.); (B.I.Q.-D.); (F.V.)
- Department of Biology, University of Puerto Rico, Rio Piedras Campus, San Juan, PR 00925, USA
| | - Ginette S. Santiago-Sánchez
- University of Puerto Rico Comprehensive Cancer Center, San Juan, PR 00935, USA; (R.J.R.-F.); (G.S.S.-S.); (R.K.S.); (R.A.N.R.); (B.I.Q.-D.); (F.V.)
- Department of Biochemistry, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00935, USA
| | - Rohit K. Sharma
- University of Puerto Rico Comprehensive Cancer Center, San Juan, PR 00935, USA; (R.J.R.-F.); (G.S.S.-S.); (R.K.S.); (R.A.N.R.); (B.I.Q.-D.); (F.V.)
| | - Abiel Roche-Lima
- Deanship of Research, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00935, USA; (A.R.-L.); (K.C.C.)
| | - Kelvin Carrasquillo Carrion
- Deanship of Research, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00935, USA; (A.R.-L.); (K.C.C.)
| | - Ricardo A. Noriega Rivera
- University of Puerto Rico Comprehensive Cancer Center, San Juan, PR 00935, USA; (R.J.R.-F.); (G.S.S.-S.); (R.K.S.); (R.A.N.R.); (B.I.Q.-D.); (F.V.)
- Department of Biochemistry, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00935, USA
| | - Blanca I. Quiñones-Díaz
- University of Puerto Rico Comprehensive Cancer Center, San Juan, PR 00935, USA; (R.J.R.-F.); (G.S.S.-S.); (R.K.S.); (R.A.N.R.); (B.I.Q.-D.); (F.V.)
- Department of Biochemistry, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00935, USA
| | - Swetha Rajasekaran
- Department of Cancer Biology and Genetics, Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA; (S.R.); (J.S.); (W.M.)
| | - Jalal Siddiqui
- Department of Cancer Biology and Genetics, Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA; (S.R.); (J.S.); (W.M.)
| | - Wayne Miles
- Department of Cancer Biology and Genetics, Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA; (S.R.); (J.S.); (W.M.)
| | - Yasmarie Santana Rivera
- School of Dentistry, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00935, USA;
| | - Fatima Valiyeva
- University of Puerto Rico Comprehensive Cancer Center, San Juan, PR 00935, USA; (R.J.R.-F.); (G.S.S.-S.); (R.K.S.); (R.A.N.R.); (B.I.Q.-D.); (F.V.)
| | - Pablo E. Vivas-Mejia
- University of Puerto Rico Comprehensive Cancer Center, San Juan, PR 00935, USA; (R.J.R.-F.); (G.S.S.-S.); (R.K.S.); (R.A.N.R.); (B.I.Q.-D.); (F.V.)
- Department of Biochemistry, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00935, USA
| |
Collapse
|
11
|
Khan MA, Vikramdeo KS, Sudan SK, Singh S, Wilhite A, Dasgupta S, Rocconi RP, Singh AP. Platinum-resistant ovarian cancer: From drug resistance mechanisms to liquid biopsy-based biomarkers for disease management. Semin Cancer Biol 2021; 77:99-109. [PMID: 34418576 PMCID: PMC8665066 DOI: 10.1016/j.semcancer.2021.08.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 07/09/2021] [Accepted: 08/12/2021] [Indexed: 12/24/2022]
Abstract
Resistance to platinum-based chemotherapy is a major clinical challenge in ovarian cancer, contributing to the high mortality-to-incidence ratio. Management of the platinum-resistant disease has been difficult due to diverse underlying molecular mechanisms. Over the past several years, research has revealed several novel molecular targets that are being explored as biomarkers for treatment planning and monitoring of response. The therapeutic landscape of ovarian cancer is also rapidly evolving, and alternative therapies are becoming available for the recurrent platinum-resistant disease. This review provides a snapshot of platinum resistance mechanisms and discusses liquid-based biomarkers and their potential utility in effective management of platinum-resistant ovarian cancer.
Collapse
Affiliation(s)
- Mohammad Aslam Khan
- Department of Pathology, College of Medicine, University of South Alabama, Mobile, AL, 36617, United States; Cancer Biology Program, Mitchell Cancer Institute, University of South Alabama, Mobile, AL, 36604, United States
| | - Kunwar Somesh Vikramdeo
- Department of Pathology, College of Medicine, University of South Alabama, Mobile, AL, 36617, United States; Cancer Biology Program, Mitchell Cancer Institute, University of South Alabama, Mobile, AL, 36604, United States
| | - Sarabjeet Kour Sudan
- Department of Pathology, College of Medicine, University of South Alabama, Mobile, AL, 36617, United States; Cancer Biology Program, Mitchell Cancer Institute, University of South Alabama, Mobile, AL, 36604, United States
| | - Seema Singh
- Department of Pathology, College of Medicine, University of South Alabama, Mobile, AL, 36617, United States; Cancer Biology Program, Mitchell Cancer Institute, University of South Alabama, Mobile, AL, 36604, United States; Department of Biochemistry and Molecular Biology, College of Medicine, University of South Alabama, Mobile, AL, 36688, United States
| | - Annelise Wilhite
- Department of Gynecologic Oncology, Mitchell Cancer Institute, University of South Alabama, Mobile, AL, 36604, United States
| | - Santanu Dasgupta
- Department of Pathology, College of Medicine, University of South Alabama, Mobile, AL, 36617, United States; Cancer Biology Program, Mitchell Cancer Institute, University of South Alabama, Mobile, AL, 36604, United States; Department of Biochemistry and Molecular Biology, College of Medicine, University of South Alabama, Mobile, AL, 36688, United States
| | - Rodney Paul Rocconi
- Cancer Biology Program, Mitchell Cancer Institute, University of South Alabama, Mobile, AL, 36604, United States
| | - Ajay Pratap Singh
- Department of Pathology, College of Medicine, University of South Alabama, Mobile, AL, 36617, United States; Cancer Biology Program, Mitchell Cancer Institute, University of South Alabama, Mobile, AL, 36604, United States; Department of Biochemistry and Molecular Biology, College of Medicine, University of South Alabama, Mobile, AL, 36688, United States.
| |
Collapse
|
12
|
Liu W, Gou H, Wang X, Li X, Hu X, Su H, Li S, Yu J. TTPAL promotes gastric tumorigenesis by directly targeting NNMT to activate PI3K/AKT signaling. Oncogene 2021; 40:6666-6679. [PMID: 34642500 PMCID: PMC8660633 DOI: 10.1038/s41388-021-01838-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 05/02/2021] [Accepted: 05/10/2021] [Indexed: 12/23/2022]
Abstract
Copy number alterations are crucial for gastric cancer (GC) development. In this study, Tocopherol alpha transfer protein-like (TTPAL) was identified to be highly amplified in our primary GC cohort (30/86). Multivariate analysis showed that high TTPAL expression was correlated with the poor prognosis of GC patients. Ectopic expression of TTPAL promoted GC cell proliferation, migration, and invasion in vitro and promoted murine xenograft tumor growth and lung metastasis in vivo. Conversely, silencing of TTPAL exerted significantly opposite effects in vitro. Moreover, RNA-sequencing and co-immunoprecipitation (Co-IP) followed by liquid chromatograph-mass spectrometry (LC-MS) identified that TTPAL exerted oncogenic functions via the interaction of Nicotinamide-N-methyl transferase (NNMT) and activated PI3K/AKT signaling pathway. Collectively, TTPAL plays a pivotal oncogenic role in gastric carcinogenesis through promoting PI3K/AKT pathway via cooperating with NNMT. TTPAL may serve as a prognostic biomarker of patients with GC.
Collapse
Affiliation(s)
- Wenxiu Liu
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China.,Department of Gastroenterology and Hepatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Hongyan Gou
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China.,Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Xiaohong Wang
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
| | - Xiaoming Li
- Department of Gastroenterology and Hepatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xiaoxu Hu
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
| | - Hao Su
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
| | - Shengmian Li
- Department of Gastroenterology and Hepatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China.
| | - Jun Yu
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China. .,Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China.
| |
Collapse
|
13
|
Pan X, Wang Z, Liu F, Zou F, Xie Q, Guo Y, Shen L. A novel tailored immune gene pairs signature for overall survival prediction in lower-grade gliomas. Transl Oncol 2021; 14:101109. [PMID: 33946034 PMCID: PMC8111095 DOI: 10.1016/j.tranon.2021.101109] [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: 02/09/2021] [Revised: 03/26/2021] [Accepted: 04/16/2021] [Indexed: 12/04/2022] Open
Abstract
The Immune-related gene pairs (IRGPs) pronostic signature for LGG is correlated with immune cells infiltration. WGCNA presented a gene set correlating with immune cells infiltration and genes co-expression relationships were visualized. The nomogram constrcted by three IRGPs and clinical factors is a novel tailored tool for individual-level prediction.
Lower-grade gliomas (LGGs) have a good prognosis with a wide range of overall survival (OS) outcomes. An accurate prognostic system can better predict survival time. An RNA-Sequencing (RNA-seq) prognostic signature showed a better predictive power than clinical predictor models. A signature constructed using gene pairs can transcend changes from biological heterogeneity, technical biases, and different measurement platforms. RNA-seq coupled with corresponding clinical information were extracted from The Cancer Genome Atlas (TCGA) and the Chinese Glioma Genome Atlas (CGGA). Immune-related gene pairs (IRGPs) were used to establish a prognostic signature through univariate and multivariate Cox proportional hazards regression. Weighted gene co-expression network analysis (WGCNA) was used to evaluate module eigengenes correlating with immune cell infiltration and to construct gene co-expression networks. Samples in the training and testing cohorts were dichotomized into high- and low-risk groups. Risk score was identified as an independent predictor, and exhibited a closed relationship with prognosis. WGCNA presented a gene set that was positively correlated with age, WHO grade, isocitrate dehydrogenase (IDH) mutation status, 1p/19 codeletion, risk score, and immune cell infiltrations (CD4 T cells, B cells, dendritic cells, and macrophages). A nomogram comprising of age, WHO grade, 1p/19q codeletion, and three gene pairs (BIRC5|SSTR2, BMP2|TNFRSF12A, and NRG3|TGFB2) was established as a tool for predicting OS. The IPGPs signature, which is associated with immune cell infiltration, is a novel tailored tool for individual-level prediction.
Collapse
Affiliation(s)
- Xuyan Pan
- Department of Neurosurgery, Huzhou Cent Hospital, Affiliated Cent Hospital Huzhou University, 1558 Third Ring North Road, Huzhou, Zhejiang 313000, China
| | - Zhaopeng Wang
- Department of Neurosurgery, The affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, 68 Gehu Road, Changzhou, Jiangsu 213000, China
| | - Fang Liu
- Department of Neurosurgery, The affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, 68 Gehu Road, Changzhou, Jiangsu 213000, China
| | - Feihui Zou
- Department of Neurosurgery, The affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, 68 Gehu Road, Changzhou, Jiangsu 213000, China
| | - Qijun Xie
- Department of Neurosurgery, The affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, 68 Gehu Road, Changzhou, Jiangsu 213000, China
| | - Yizhuo Guo
- Department of Neurosurgery, The affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, 68 Gehu Road, Changzhou, Jiangsu 213000, China
| | - Liang Shen
- Department of Neurosurgery, The affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, 68 Gehu Road, Changzhou, Jiangsu 213000, China.
| |
Collapse
|
14
|
Feng Y, Le F, Tian P, Zhong Y, Zhan F, Huang G, Hu H, Chen T, Tan B. GTW inhibits the Epithelial to Mesenchymal Transition of Epithelial Ovarian Cancer via ILK/AKT/GSK3β/Slug Signalling Pathway. J Cancer 2021; 12:1386-1397. [PMID: 33531984 PMCID: PMC7847657 DOI: 10.7150/jca.52418] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 12/09/2020] [Indexed: 12/22/2022] Open
Abstract
Background: Epithelial ovarian cancer (EOC) accounts for the most lethal of all gynaecological cancers which is attributed to metastasis, invasiveness and drug resistance. A crucial link has been found between epithelial-mesenchymal transition (EMT) and cancer metastasis and chemo-resistance. Previous studies have confirmed that one of the main components of tripterygium glycosides (GTW)-triptolide (TPL) has anticancer effects. Methods: The purpose of this study is to determine whether GTW could inhibit EMT in A2780/DPP cells in vitro and in vivo, and explore the underlying mechanism. Results: In vitro results showed that GTW inhibited cell proliferation, invasion and migration, and intensified the sensitivity of A2780/DDP cells to cisplatin (DDP). GTW, especially GTW+DDP, significantly inhibited the expression of N-cadherin, integrin-linked kinase (ILK), phospho-protein kinase B/AKT (PKB/p-AKT), phospho-glycogen synthase kinase (p-GSK3β) and Slug, while it increased E-cadherin levels by inhibiting EMT via the ILK/AKT/GSK3β/Slug signalling pathway. Animal results indicated that GTW, especially GTW+DDP, significantly reduced tumour burden, prolonged the life span of mice, and down-regulated the levels of tumour markers CA125 and HE4 by regulating EMT through the ILK/AKT/GSK3β/Slug signalling pathway. Conclusion: Our results highlighted the significance of EMT in EOC metastasis, invasiveness and resistance to DDP and investigated the potential role of GTW as an adjuvant therapeutic agent in chemo-resistant EOC.
Collapse
Affiliation(s)
- Ying Feng
- Department of Obstetrics & Gynecology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, PR China
| | - Fuyin Le
- Department of Obstetrics & Gynecology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, PR China
| | - Puyuan Tian
- Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Yanying Zhong
- Department of Obstetrics & Gynecology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, PR China
| | - Fuliang Zhan
- Department of Obstetrics & Gynecology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, PR China
| | - Genhua Huang
- Department of Obstetrics & Gynecology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, PR China
| | - Hui Hu
- Department of Obstetrics & Gynecology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, PR China
| | - Tingtao Chen
- Department of Obstetrics & Gynecology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, PR China
- Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi 330031, PR China
| | - Buzhen Tan
- Department of Obstetrics & Gynecology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, PR China
| |
Collapse
|