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Wang F, Zhou C, Zhu Y, Keshavarzi M. The microRNA Let-7 and its exosomal form: Epigenetic regulators of gynecological cancers. Cell Biol Toxicol 2024; 40:42. [PMID: 38836981 PMCID: PMC11153289 DOI: 10.1007/s10565-024-09884-3] [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: 01/31/2024] [Accepted: 05/15/2024] [Indexed: 06/06/2024]
Abstract
Many types of gynecological cancer (GC) are often silent until they reach an advanced stage, and are therefore often diagnosed too late for effective treatment. Hence, there is a real need for more efficient diagnosis and treatment for patients with GC. During recent years, researchers have increasingly studied the impact of microRNAs cancer development, leading to a number of applications in detection and treatment. MicroRNAs are a particular group of tiny RNA molecules that regulate regular gene expression by affecting the translation process. The downregulation of numerous miRNAs has been observed in human malignancies. Let-7 is an example of a miRNA that controls cellular processes as well as signaling cascades to affect post-transcriptional gene expression. Recent research supports the hypothesis that enhancing let-7 expression in those cancers where it is downregulated may be a potential treatment option. Exosomes are tiny vesicles that move through body fluids and can include components like miRNAs (including let-7) that are important for communication between cells. Studies proved that exosomes are able to enhance tumor growth, angiogenesis, chemoresistance, metastasis, and immune evasion, thus suggesting their importance in GC management.
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Affiliation(s)
- Fei Wang
- Haiyan People's Hospital, Zhejiang Province, Jiaxing, 314300, Zhejiang, China
| | - Chundi Zhou
- Haiyan People's Hospital, Zhejiang Province, Jiaxing, 314300, Zhejiang, China
| | - Yanping Zhu
- Haiyan People's Hospital, Zhejiang Province, Jiaxing, 314300, Zhejiang, China.
| | - Maryam Keshavarzi
- School of Medicine, Tehran University of Medical Sciences, Tehran, Tehran, Iran.
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2
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Guo QY, Song JN, Chen YM, Yuan HN, Xue WS, Sun Y, Niu XL, Wang Y, Chen X. IL-6 regulates epithelial ovarian cancer EMT, invasion, and metastasis by modulating Let-7c and miR-200c through the STAT3/HIF-1α pathway. Med Oncol 2024; 41:155. [PMID: 38744773 DOI: 10.1007/s12032-024-02328-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 02/06/2024] [Indexed: 05/16/2024]
Abstract
Interleukin-6 (IL-6) and hypoxia-inducible factor-1α (HIF-1α) play important roles in epithelial-mesenchymal transformation (EMT) and tumor development. Previous studies have demonstrated that IL-6 promotes EMT, invasion, and metastasis in epithelial ovarian cancer (EOC) cells by activating the STAT3/HIF-1α pathway. MicroRNA (miRNA) is non-coding small RNAs that also play an important role in tumor development. Notably, Let-7 and miR-200 families are prominently altered in EOC. However, whether IL-6 regulates the expression of Let-7 and miR-200 families through the STAT3/HIF-1α signaling to induce EMT in EOC remains poorly understood. In this study, we conducted in vitro and in vivo investigations using two EOC cell lines, SKOV3, and OVCAR3 cells. Our findings demonstrate that IL-6 down-regulates the mRNA levels of Let-7c and miR-200c while up-regulating their target genes HMGA2 and ZEB1 through the STAT3/HIF-1α signaling in EOC cells and in vivo. Additionally, to explore the regulatory role of HIF-1α on miRNAs, both exogenous HIF blockers YC-1 and endogenous high expression or inhibition of HIF-1α can be utilized. Both approaches can confirm that the downstream molecule HIF-1α inhibits the expression and function of Let-7c and miR-200c. Further mechanistic research revealed that the overexpression of Let-7c or miR-200c can reverse the malignant evolution of EOC cells induced by IL-6, including EMT, invasion, and metastasis. Consequently, our results suggest that IL-6 regulates the expression of Let-7c and miR-200c through the STAT3/HIF-1α pathway, thereby promoting EMT, invasion, and metastasis in EOC cells.
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MESH Headings
- Animals
- Female
- Humans
- Mice
- Carcinoma, Ovarian Epithelial/pathology
- Carcinoma, Ovarian Epithelial/genetics
- Carcinoma, Ovarian Epithelial/metabolism
- Cell Line, Tumor
- Epithelial-Mesenchymal Transition/genetics
- Gene Expression Regulation, Neoplastic
- Hypoxia-Inducible Factor 1, alpha Subunit/metabolism
- Hypoxia-Inducible Factor 1, alpha Subunit/genetics
- Interleukin-6/metabolism
- Interleukin-6/genetics
- Mice, Inbred BALB C
- Mice, Nude
- MicroRNAs/genetics
- Neoplasm Invasiveness/genetics
- Neoplasm Metastasis
- Neoplasms, Glandular and Epithelial/pathology
- Neoplasms, Glandular and Epithelial/genetics
- Neoplasms, Glandular and Epithelial/metabolism
- Ovarian Neoplasms/pathology
- Ovarian Neoplasms/genetics
- Ovarian Neoplasms/metabolism
- Signal Transduction
- STAT3 Transcription Factor/metabolism
- STAT3 Transcription Factor/genetics
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Affiliation(s)
- Qiao Yun Guo
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, No.10 Poyang Lake Road, Jinghai District, Tianjin, 301617, China
- School of Pharmacy and Biological Technology, Tianjin Medical College, Tianjin, 300222, China
| | - Jiang Nan Song
- Department of Gynaecology and Obstetrics, Characteristic Medical Center of Chinese People's Armed Police Force, No.220, Chenglin Road, Dongli District, Tianjin, 300162, China
- Department of Gynecology and Obstetrics, Chinese People's Liberation Army General Hospital, Beijing, 100080, China
| | - Yu Meng Chen
- College of Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Hai Ning Yuan
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, No.10 Poyang Lake Road, Jinghai District, Tianjin, 301617, China
| | - Wen Shu Xue
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, No.10 Poyang Lake Road, Jinghai District, Tianjin, 301617, China
| | - Yang Sun
- Department of Gynaecology and Obstetrics, Characteristic Medical Center of Chinese People's Armed Police Force, No.220, Chenglin Road, Dongli District, Tianjin, 300162, China
| | - Xiu Long Niu
- Institute of Prevention and Treatment of Dermatosis in Alpine Environment of Plateau, Characteristic Medical Center of Chinese People's Armed Police Force, Tianjin, 300162, China
| | - Yue Wang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, No.10 Poyang Lake Road, Jinghai District, Tianjin, 301617, China.
| | - Xiao Chen
- Department of Gynaecology and Obstetrics, Characteristic Medical Center of Chinese People's Armed Police Force, No.220, Chenglin Road, Dongli District, Tianjin, 300162, China
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Wei J, Cheng P, Kong M, Zhang L, Liu S, Ning B, Huang X. MicroRNA-23a-3p overexpression represses proliferation and accelerates apoptosis of granular cells in polycystic ovarian syndrome by targeting HMGA2. Gynecol Endocrinol 2023; 39:2172155. [PMID: 36809792 DOI: 10.1080/09513590.2023.2172155] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/24/2023] Open
Abstract
OBJECTIVE Granular cells (GCs) are involved in polycystic ovarian syndrome (PCOS) progression. MicroRNA (miR)-23a downregulation is linked to PCOS development. Therefore, this research explored the influences of miR-23a-3p on GC proliferation and apoptosis in PCOS. METHODS Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and western blotting were conducted to examine miR-23a-3p and HMGA2 expression in GCs of patients with PCOS. Then, miR-23a-3p and/or HMGA2 expression was altered in GCs (KGN and SVOG), after which miR-23a-3p, HMGA2, Wnt2, and β-catenin expression, GC viability, and GC apoptosis were measured by RT-qPCR and western blotting, MTT assay, and flow cytometry, respectively. A dual-luciferase reporter gene assay was utilized to assess the targeting relationship between miR-23a-3p and HMGA2. Finally, GC viability and apoptosis were tested after the combined treatment of miR-23a-3p mimic and pcDNA3.1-HMGA2. RESULTS miR-23a-3p was poorly expressed but HMGA2 was overexpressed in GCs of patients with PCOS. Mechanistically, HMGA2 was negatively targeted by miR-23a-3p in GCs. Furthermore, miR-23a-3p inhibition or HMGA2 upregulation elevated viability and reduced apoptosis of KGN and SVOG cells, along with increased Wnt2 and β-catenin expression. In KNG cells, HMGA2 overexpression abrogated the impacts of miR-23a-3p overexpression on GC viability and apoptosis. CONCLUSIONS Collectively, miR-23a-3p decreased HMGA2 expression to block the Wnt/β-catenin pathway, thereby depressing viability and facilitating apoptosis of GCs.
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Affiliation(s)
- Junzi Wei
- Department of Gynecology, Urumqi Youai Hospital, Urumqi, Xinjiang, P.R. China
- Graduate School of Xinjiang Medical University, Urumqi, Xinjiang, P.R. China
| | - Ping Cheng
- Department of Gynecology, Urumqi Youai Hospital, Urumqi, Xinjiang, P.R. China
| | - Mei Kong
- Department of Gynecology, Urumqi Youai Hospital, Urumqi, Xinjiang, P.R. China
| | - Ling Zhang
- Department of Assisted Reproduction, Urumqi Maternal and Child Health Hospital, Urumqi, Xinjiang, P.R. China
| | - Shuang Liu
- Department of Gynecology, Urumqi Maternal and Child Health Hospital, Urumqi, Xinjiang, P.R. China
| | - Bingxue Ning
- Center of Reproductive Medicine, the First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, P.R. China
| | - Xinlin Huang
- Department of Assisted Reproduction, Urumqi Maternal and Child Health Hospital, Urumqi, Xinjiang, P.R. China
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Hashemi M, Rashidi M, Hushmandi K, Ten Hagen TLM, Salimimoghadam S, Taheriazam A, Entezari M, Falahati M. HMGA2 regulation by miRNAs in cancer: affecting cancer hallmarks and therapy response. Pharmacol Res 2023; 190:106732. [PMID: 36931542 DOI: 10.1016/j.phrs.2023.106732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 03/13/2023] [Accepted: 03/14/2023] [Indexed: 03/17/2023]
Abstract
High mobility group A 2 (HMGA2) is a protein that modulates the structure of chromatin in the nucleus. Importantly, aberrant expression of HMGA2 occurs during carcinogenesis, and this protein is an upstream mediator of cancer hallmarks including evasion of apoptosis, proliferation, invasion, metastasis, and therapy resistance. HMGA2 targets critical signaling pathways such as Wnt/β-catenin and mTOR in cancer cells. Therefore, suppression of HMGA2 function notably decreases cancer progression and improves outcome in patients. As HMGA2 is mainly oncogenic, targeting expression by non-coding RNAs (ncRNAs) is crucial to take into consideration since it affects HMGA2 function. MicroRNAs (miRNAs) belong to ncRNAs and are master regulators of vital cell processes, which affect all aspects of cancer hallmarks. Long ncRNAs (lncRNAs) and circular RNAs (circRNAs), other members of ncRNAs, are upstream mediators of miRNAs. The current review intends to discuss the importance of the miRNA/HMGA2 axis in modulation of various types of cancer, and mentions lncRNAs and circRNAs, which regulate this axis as upstream mediators. Finally, we discuss the effect of miRNAs and HMGA2 interactions on the response of cancer cells to therapy. Regarding the critical role of HMGA2 in regulation of critical signaling pathways in cancer cells, and considering the confirmed interaction between HMGA2 and one of the master regulators of cancer, miRNAs, targeting miRNA/HMGA2 axis in cancer therapy is promising and this could be the subject of future clinical trial experiments.
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Affiliation(s)
- Mehrdad Hashemi
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Mohsen Rashidi
- Department Pharmacology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, 4815733971, Iran; The Health of Plant and Livestock Products Research Center, Mazandaran University of Medical Sciences, Sari, 4815733971, Iran.
| | - Kiavash Hushmandi
- Department of Food Hygiene and Quality Control, Division of Epidemiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
| | - Timo L M Ten Hagen
- Precision Medicine in Oncology (PrMiO), Department of Pathology, Erasmus MC Cancer Institute, Erasmus MC, Rotterdam, the Netherlands.
| | - Shokooh Salimimoghadam
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
| | - Afshin Taheriazam
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Orthopedics, Faculty of medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Maliheh Entezari
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Mojtaba Falahati
- Precision Medicine in Oncology (PrMiO), Department of Pathology, Erasmus MC Cancer Institute, Erasmus MC, Rotterdam, the Netherlands.
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5
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Li G, Gong J, Cao S, Wu Z, Cheng D, Zhu J, Huang X, Tang J, Yuan Y, Cai W, Zhang H. The Non-Coding RNAs Inducing Drug Resistance in Ovarian Cancer: A New Perspective for Understanding Drug Resistance. Front Oncol 2021; 11:742149. [PMID: 34660304 PMCID: PMC8514763 DOI: 10.3389/fonc.2021.742149] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 09/10/2021] [Indexed: 12/30/2022] Open
Abstract
Ovarian cancer, a common malignant tumor, is one of the primary causes of cancer-related deaths in women. Systemic chemotherapy with platinum-based compounds or taxanes is the first-line treatment for ovarian cancer. However, resistance to these chemotherapeutic drugs worsens the prognosis. The underlying mechanism of chemotherapeutic resistance in ovarian cancer remains unclear. Non-coding RNAs, including long non-coding RNAs, microRNAs, and circular RNAs, have been implicated in the development of drug resistance. Abnormally expressed non-coding RNAs can promote ovarian cancer resistance by inducing apoptosis inhibition, protective autophagy, abnormal tumor cell proliferation, epithelial-mesenchymal transition, abnormal glycolysis, drug efflux, and cancer cell stemness. This review summarizes the role of non-coding RNAs in the development of chemotherapeutic resistance in ovarian cancer, including their mechanisms, targets, and potential signaling pathways. This will facilitate the development of novel chemotherapeutic agents that can target these non-coding RNAs and improve ovarian cancer treatment.
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Affiliation(s)
- Gaofeng Li
- School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China
| | - Jun Gong
- Department of Abdominal and Pelvic Medical Oncology, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Edong Healthcare Group, Huangshi, China
| | - Shulong Cao
- School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China
| | - Zhaoyang Wu
- School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China
| | - Dong Cheng
- Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jia Zhu
- Hubei Enshi College, Enshi, China
| | - Xuqun Huang
- Department of Thoracic Medical Oncology, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Edong Healthcare Group, Huangshi, China
| | - Jingyi Tang
- School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China
| | - Yuning Yuan
- School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China
| | - Wenqi Cai
- School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China
| | - Haiyuan Zhang
- School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, China
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6
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Gundlach JP, Hauser C, Schlegel FM, Willms A, Halske C, Röder C, Krüger S, Röcken C, Becker T, Kalthoff H, Trauzold A. Prognostic significance of high mobility group A2 (HMGA2) in pancreatic ductal adenocarcinoma: malignant functions of cytoplasmic HMGA2 expression. J Cancer Res Clin Oncol 2021; 147:3313-3324. [PMID: 34302528 PMCID: PMC8484217 DOI: 10.1007/s00432-021-03745-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 07/16/2021] [Indexed: 01/26/2023]
Abstract
PURPOSE HMGA2 has frequently been found in benign as well as malignant tumors and a significant association between HMGA2 overexpression and poor survival in different malignancies was described. In pancreatic ductal adenocarcinoma (PDAC), nuclear HMGA2 expression is associated with tumor dedifferentiation and presence of lymph node metastasis. Nevertheless, the impact of HMGA2 occurrence in other cell compartments is unknown. METHODS Intracellular distribution of HMGA2 was analyzed in PDAC (n = 106) and peritumoral, non-malignant ducts (n = 28) by immunohistochemistry. Findings were correlated with clinico-pathological data. Additionally, intracellular HMGA2 presence was studied by Western blotting of cytoplasmic and nuclear fractions of cultured cells. RESULTS HMGA2 was found in the cytoplasm and in the nucleus of cultured cells. In human tumor tissue, HMGA2 was also frequently found in the cytoplasm and the nucleus of tumor cells, however, nuclear staining was generally stronger. Direct comparison from tumor tissue with corresponding non-neoplastic peritumoral tissue revealed significantly stronger expression in tumors (p = 0.003). Of note, the nuclear staining was significantly stronger in lymph node metastatic cell nuclei compared to primary tumor cell nuclei (p = 0.049). Interestingly, cytoplasmic staining positively correlated with lymph vessel (p = 0.004) and venous invasion (p = 0.046). CONCLUSION HMGA2 is a prognostic marker in PDAC. Firstly, we found a positive correlation for cytoplasmic HMGA2 expression with lympho-vascular invasion and, secondly, we found a significantly stronger nuclear expression of HMGA2 in cancer-positive lymph node nuclei compared to primary tumor cell nuclei. So far, the role of cytoplasmic HMGA2 is nearly unknown, however, our data lend support to the hypothesis that cytoplasmic HMGA2 expression is involved in nodal spread.
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Affiliation(s)
- Jan-Paul Gundlach
- Department of General Surgery, Visceral-, Thoracic-, Transplantation- and Pediatric-Surgery, University Hospital Schleswig-Holstein (UKSH), Campus Kiel, Arnold-Heller-Str. 3, Building C, 24105, Kiel, Germany.,Institute for Experimental Cancer Research, University of Kiel, Arnold-Heller-Str. 3, Building U30, 24105, Kiel, Germany
| | - Charlotte Hauser
- Department of General Surgery, Visceral-, Thoracic-, Transplantation- and Pediatric-Surgery, University Hospital Schleswig-Holstein (UKSH), Campus Kiel, Arnold-Heller-Str. 3, Building C, 24105, Kiel, Germany.,Institute for Experimental Cancer Research, University of Kiel, Arnold-Heller-Str. 3, Building U30, 24105, Kiel, Germany
| | - Franka Maria Schlegel
- Institute for Experimental Cancer Research, University of Kiel, Arnold-Heller-Str. 3, Building U30, 24105, Kiel, Germany
| | - Anna Willms
- Institute for Experimental Cancer Research, University of Kiel, Arnold-Heller-Str. 3, Building U30, 24105, Kiel, Germany
| | - Christine Halske
- Department of Pathology, UKSH, Campus Kiel, Arnold-Heller-Str. 3, Building U33, 24105, Kiel, Germany
| | - Christian Röder
- Institute for Experimental Cancer Research, University of Kiel, Arnold-Heller-Str. 3, Building U30, 24105, Kiel, Germany
| | - Sandra Krüger
- Department of Pathology, UKSH, Campus Kiel, Arnold-Heller-Str. 3, Building U33, 24105, Kiel, Germany
| | - Christoph Röcken
- Department of Pathology, UKSH, Campus Kiel, Arnold-Heller-Str. 3, Building U33, 24105, Kiel, Germany
| | - Thomas Becker
- Department of General Surgery, Visceral-, Thoracic-, Transplantation- and Pediatric-Surgery, University Hospital Schleswig-Holstein (UKSH), Campus Kiel, Arnold-Heller-Str. 3, Building C, 24105, Kiel, Germany
| | - Holger Kalthoff
- Institute for Experimental Cancer Research, University of Kiel, Arnold-Heller-Str. 3, Building U30, 24105, Kiel, Germany
| | - Anna Trauzold
- Department of General Surgery, Visceral-, Thoracic-, Transplantation- and Pediatric-Surgery, University Hospital Schleswig-Holstein (UKSH), Campus Kiel, Arnold-Heller-Str. 3, Building C, 24105, Kiel, Germany. .,Institute for Experimental Cancer Research, University of Kiel, Arnold-Heller-Str. 3, Building U30, 24105, Kiel, Germany.
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7
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Lacedonia D, Scioscia G, Soccio P, Conese M, Catucci L, Palladino GP, Simone F, Quarato CMI, Di Gioia S, Rana R, Sollitto F, Foschino-Barbaro MP. Downregulation of exosomal let-7d and miR-16 in idiopathic pulmonary fibrosis. BMC Pulm Med 2021; 21:188. [PMID: 34088304 PMCID: PMC8176704 DOI: 10.1186/s12890-021-01550-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 05/24/2021] [Indexed: 01/04/2023] Open
Abstract
Background Idiopathic Pulmonary Fibrosis (IPF) is a degenerative interstitial lung disease with both a poor prognosis and quality of life once the diagnosis is made. In the last decade many features of the disease have been investigated to better understand the pathological steps that lead to the onset of the disease and, moreover, different types of biomarkers have been tested to find valid diagnostic, prognostic and therapy response predictive ones. In the complexity of IPF, microRNA (miRNAs) biomarker investigation seems to be promising. Methods We analysed the expression of five exosomal miRNAs supposed to have a role in the pathogenesis of the disease from serum of a group of IPF patients (n = 61) and we compared it with the expression of the same miRNAs in a group of healthy controls (n = 15). Results In the current study what emerged is let-7d down-regulation and, unexpectedly, miR-16 significant down-regulation. Moreover, through a cross-sectional analysis, a clustering of the expression of miR-16, miR-21 and miR-26a was found. Conclusions These findings could help the individuation of previously unknown key players in the pathophysiology of IPF and, most interestingly, more specific targets for the development of effective medications. Supplementary Information The online version contains supplementary material available at 10.1186/s12890-021-01550-2.
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Affiliation(s)
- Donato Lacedonia
- Department of Medical and Surgical Sciences, University of Foggia, 71122, Foggia, Italy. .,Institute of Respiratory Diseases, Policlinico Riuniti of Foggia, 71122, Foggia, Italy.
| | - Giulia Scioscia
- Department of Medical and Surgical Sciences, University of Foggia, 71122, Foggia, Italy.,Institute of Respiratory Diseases, Policlinico Riuniti of Foggia, 71122, Foggia, Italy
| | - Piera Soccio
- Department of Medical and Surgical Sciences, University of Foggia, 71122, Foggia, Italy.,Institute of Respiratory Diseases, Policlinico Riuniti of Foggia, 71122, Foggia, Italy
| | - Massimo Conese
- Department of Medical and Surgical Sciences, University of Foggia, 71122, Foggia, Italy
| | - Lucia Catucci
- Department of Chemistry, University "Aldo Moro" of Bari, 70126, Bari, Italy
| | - Grazia P Palladino
- Medical Genetics, Department of Laboratory Diagnostics, Policlinico Riuniti of Foggia, 71122, Foggia, Italy
| | - Filomena Simone
- Department of Medical and Surgical Sciences, University of Foggia, 71122, Foggia, Italy
| | - Carla M I Quarato
- Department of Medical and Surgical Sciences, University of Foggia, 71122, Foggia, Italy
| | - Sante Di Gioia
- Department of Medical and Surgical Sciences, University of Foggia, 71122, Foggia, Italy
| | - Roberto Rana
- Department of Medical and Surgical Sciences, University of Foggia, 71122, Foggia, Italy
| | - Francesco Sollitto
- Institute of Thoracic Surgery, University of Foggia, 71122, Foggia, Italy
| | - Maria P Foschino-Barbaro
- Department of Medical and Surgical Sciences, University of Foggia, 71122, Foggia, Italy.,Institute of Respiratory Diseases, Policlinico Riuniti of Foggia, 71122, Foggia, Italy
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8
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LncRNA ANRIL affects the sensitivity of ovarian cancer to cisplatin via regulation of let-7a/HMGA2 axis. Biosci Rep 2019; 39:BSR20182101. [PMID: 31189742 PMCID: PMC6609561 DOI: 10.1042/bsr20182101] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 04/18/2019] [Accepted: 05/20/2019] [Indexed: 12/14/2022] Open
Abstract
This paper tried to explore ANRIL expression in ovarian cancer and how it affects cisplatin-sensitivity of ovarian cancer cells via regulation of let-7a/high-mobility group protein A2 (HMGA2) axis. qRT-PCR was used to detect ANRIL and let-7a levels in ovarian cancer tissues and cell lines (SKOV3 and SKOV3/DDP). Then cells were randomly assigned into Blank, negative control siRNA, ANRIL siRNA, let-7a inhibitor, and ANRIL siRNA+let-7a-inhibitor groups. CCK-8 assay was applied for assessing cell viability of cells treated with different concentrations of cisplatin. Flow cytometry was employed to test cell apoptosis rate. qRT-PCR and Western blot were performed for related molecules detection. Nude mice transplanted with SKOV3/DDP cells were used to confirm the effects of ANRIL siRNA on the cisplatin-sensitivity. Ovarian cancer tissues and cisplatin-resistant cells had increased ANRIL expression and decreased let-7a expression, and those patients with higher clinical stage and pathological grade showed higher ANRIL and lower let-7a. Dual-luciferase reporter-gene assay confirmed the targeting relationship between ANRIL and let-7a, and between let-7a and HMGA2. The cell viability and cisplatin IC50 were decreased in ANRIL siRNA group exposed to different concentrations of cisplatin, with enhanced apoptosis, as well as elevated let-7a and declined HMGA2, which would be reversed by let-7a inhibitor. Meanwhile, ANRIL down-regulation enhanced the inhibitory effect of cisplatin on tumor growth of nude mice and reduced tumor weight. Silencing ANRIL expression reduced HMGA2 expression to promote the apoptosis and improve cisplatin-sensitivity of ovarian cancer cells via up-regulating let-7a expression.
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Tezcan G, Aksoy SA, Tunca B, Bekar A, Mutlu M, Cecener G, Egeli U, Kocaeli H, Demirci H, Taskapilioglu MO. Oleuropein modulates glioblastoma miRNA pattern different from Olea europaea leaf extract. Hum Exp Toxicol 2019; 38:1102-1110. [PMID: 31169033 DOI: 10.1177/0960327119855123] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Glioblastoma (GBM) is the most prevalent and deadliest subtype of glioma. Despite current innovations in existing therapeutic modalities, GBM remains incurable, and alternative therapies are required. Previously, we demonstrated that Olea europaea leaf extract (OLE) kills GBM cells by modulating miR-181b, miR-137, miR-153 and Let-7d expression. However, although oleuropein (OL) is the main compound in OLE, its role in the antitumour effect of OLE remains unknown. This study determined the effect of OL on GBM cell line T98G and compared the results with our previous findings regarding the effect of OLE on the same cell line. The antiproliferative activity of OL and its effect on temozolomide (TMZ) response were tested inT98G cells using WST-1 assay. OL inhibition was evaluated using one-way analysis of variance with Tukey's post hoc test. The effect of OL on miR-181b, miR-137, miR-153 and Let-7d expression was assessed using quantitative reverse transcription polymerase chain reaction. Fold differences in expression between untreated, OL or OL + TMZ-treated samples were calculated using 2-ΔCt method. Significance was evaluated using an independent sample t-test. Treatment with 277.5 and 555 µM OL resulted in 39.51% and 75.40% reductions in T98G cells within 24 h. Coadministration of 325 µM TMZ and 277.5 or 555 µM, OL caused 2.08- and 2.83-fold increases, respectively, in the therapeutic effect of TMZ. OL + TMZ significantly increased microRNA expression, particularly Let-7d, than OLE. In conclusion, OL has an antitumour effect on GBM cells mainly via regulation of Let-7d expression. The present results also indicate other minor compounds in OLE play important anticancer roles.
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Affiliation(s)
- G Tezcan
- 1 Institute of Fundamental Medicine and Biology, Open Lab: Gene and Cell Technologies, Kazan Federal University, Kazan, Russia
| | - S A Aksoy
- 2 Department of Medical Biology, Medical Faculty, Uludag University, Bursa, Turkey
| | - B Tunca
- 2 Department of Medical Biology, Medical Faculty, Uludag University, Bursa, Turkey
| | - A Bekar
- 3 Department of Neurosurgery, Medical Faculty, Uludag University, Bursa, Turkey
| | - M Mutlu
- 2 Department of Medical Biology, Medical Faculty, Uludag University, Bursa, Turkey
| | - G Cecener
- 2 Department of Medical Biology, Medical Faculty, Uludag University, Bursa, Turkey
| | - U Egeli
- 2 Department of Medical Biology, Medical Faculty, Uludag University, Bursa, Turkey
| | - H Kocaeli
- 3 Department of Neurosurgery, Medical Faculty, Uludag University, Bursa, Turkey
| | - H Demirci
- 2 Department of Medical Biology, Medical Faculty, Uludag University, Bursa, Turkey
| | - M O Taskapilioglu
- 3 Department of Neurosurgery, Medical Faculty, Uludag University, Bursa, Turkey
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10
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Pearlman A, Rahman MT, Upadhyay K, Loke J, Ostrer H. Ectopic Otoconin 90 expression in triple negative breast cancer cell lines is associated with metastasis functions. PLoS One 2019; 14:e0211737. [PMID: 30763339 PMCID: PMC6375562 DOI: 10.1371/journal.pone.0211737] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 01/18/2019] [Indexed: 01/18/2023] Open
Abstract
Triple negative breast cancer (TNBC) is an aggressive tumor with propensity to metastasize and poor treatment options. Improving treatment options would be impactful; thus, finding a tumor-specific cell surface protein with metastasis promoting functions that could be knocked out was the goal of this study. The Otoconin 90 gene (OC90), frequently amplified in tumors on chromosome 8q24.22, was identified as a potential therapeutic candidate. Normally OC90 is expressed in the cochlea with no known function in other normal tissues. In silico analysis of The Cancer Genome Atlas (TCGA) multi-tumor RNAseq cohorts revealed that OC90 is expressed in many tumor types at high prevalence and genomic amplification is associated with the elevated mRNA expression. In vitro assays in TNBC cell lines revealed OC90 expression with control over cell viability, apoptosis and invasion. RNA-seq analysis of OC90-siRNA knockdown and OC90-overexpression in BT20, BT549, HCC38 cell lines identified co-expressed transcripts, HMGA2, POLE2 and TRIB3. Altered expression of HMGA2, POLE2 and TRIB3 was predictive of survival among members of the Metabric breast cancer cohort. Thus, OC90 represents a potential therapeutic target whose knockdown could improve the treatment of TNBC.
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Affiliation(s)
- Alexander Pearlman
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY, United States of America
| | - Mohammed Tanjimur Rahman
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY, United States of America
| | - Kinnari Upadhyay
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY, United States of America
| | - Johnny Loke
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY, United States of America
| | - Harry Ostrer
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY, United States of America
- * E-mail:
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11
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Zhao W, Geng D, Li S, Chen Z, Sun M. LncRNA HOTAIR influences cell growth, migration, invasion, and apoptosis via the miR-20a-5p/HMGA2 axis in breast cancer. Cancer Med 2018; 7:842-855. [PMID: 29473328 PMCID: PMC5852357 DOI: 10.1002/cam4.1353] [Citation(s) in RCA: 300] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 12/18/2017] [Accepted: 12/30/2017] [Indexed: 12/15/2022] Open
Abstract
To study the regulatory effect of lncRNA HOTAIR/miR-20a-5p/HMGA2 axis on breast cancer (BC) cell growth, cell mobility, invasiveness, and apoptosis. The microarray data of lncRNAs and mRNAs with differential expression in BC tissues were analyzed in the Cancer Genome Atlas (TCGA) database. LncRNA HOX transcript antisense RNA (lncRNA HOTAIR) expression in BC was assessed by qRT-PCR. Cell viability was confirmed using MTT and colony formation assay. Cell apoptosis was analyzed by TdT-mediated dUTP nick-end labeling (TUNEL) assay. Cell mobility and invasiveness were testified by transwell assay. RNA pull-down and dual luciferase assay were used for analysis of the correlation between lncRNA HOTAIR and miR-20a-5p, as well as relationship of miR-20a-5p with high mobility group AT-hook 2 (HMGA2). Tumor xenograft study was applied to confirm the correlation of lncRNA HOTAIR/miR-20a-5p/HMGA2 axis on BC development in vivo. The expression levels of the lncRNA HOTAIR were upregulated in BC tissues and cells. Knockdown lncRNA HOTAIR inhibited cell propagation and metastasis and facilitated cell apoptosis. MiR-20a-5p was a target of lncRNA HOTAIR and had a negative correlation with lncRNA HOTAIR. MiR-20a-5p overexpression in BC suppressed cell growth, mobility, and invasiveness and facilitated apoptosis. HMGA2 was a target of miR-20a-5p, which significantly induced carcinogenesis of BC. BC cells progression was mediated by lncRNA HOTAIR via affecting miR-20a-5p/HMGA2 in vivo. LncRNA HOTAIR affected cell growth, metastasis, and apoptosis via the miR-20a-5p/HMGA2 axis in breast cancer.
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Affiliation(s)
- Wenyan Zhao
- Department of General SurgeryShengjing Hospital Affiliated China Medical UniversityShenyang110004LiaoningChina
| | - Donghua Geng
- Department of General SurgeryShengjing Hospital Affiliated China Medical UniversityShenyang110004LiaoningChina
| | - Shuqiang Li
- Department of General SurgeryShengjing Hospital Affiliated China Medical UniversityShenyang110004LiaoningChina
| | - Zhaofu Chen
- Department of UrologyShengjing Hospital Affiliated China Medical UniversityShenyang110004LiaoningChina
| | - Ming Sun
- Department of UrologyShengjing Hospital Affiliated China Medical UniversityShenyang110004LiaoningChina
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12
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Wang L, Shen H, Zhu D, Feng B, Yu L, Tian X, Ren C, Gao C, Li X, Ma D, Hu Z, Wang H. Increased high mobility group A 2 expression promotes transition of cervical intraepithelial neoplasm into cervical cancer. Oncotarget 2018; 9:7891-7901. [PMID: 29487700 PMCID: PMC5814267 DOI: 10.18632/oncotarget.24080] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Accepted: 01/04/2018] [Indexed: 12/29/2022] Open
Abstract
Integration of the high risk human papillomavirus (HR-HPV) genome into host chromatin is an important step in cervical carcinogenesis. We identified HR-HPV integration sites within the human genome through detection of integrated papillomavirus sequences-PCR and assessed the role of high mobility group A 2 (HMGA2) in cervical carcinogenesis in clinical samples and cell lines. HPV integration sites were analyzed in 40 cervical cancer samples, while copy number variation and protein expression were assessed in 19 normal cervixes, 49 cervical intraepithelial neoplasia (CIN), and 52 cervical cancer samples. Overall, 25 HR-HPV integrating loci were detected in 24 cervical samples; HMGA2 was the only recurring integration site. Both HPV copy number and HMGA2 protein expression were higher in cervical cancer than CIN samples. Area under the curve (AUC) values for HMGA2 expression and HPV copy number were 0.910 (95% CI: 0.844–0.976) and 0.848 (95% CI: 0.772–0.923), respectively. Expression of Bcl-2 and Caspase 3 can indicate the cell proliferation and apoptosis. Transfection of HMGA2 siRNA decreased HMGA2 mRNA and protein expression, Bcl-2 expression, inhibited cell proliferation, and increased Caspase 3 expression and apoptosis in SiHa, CaSki and S12 cervical cancer cells. HMGA2 overexpression had the opposite effects. These results suggest that elevated HMGA2 expression is associated with transformation of CIN into cervical cancer and that HMGA2 might be a useful biomarker for assessing the risk of cervical lesion progression.
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Affiliation(s)
- Liming Wang
- Key Laboratory of Cancer Invasion and Metastasis of the Ministry of Education, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Hui Shen
- Key Laboratory of Cancer Invasion and Metastasis of the Ministry of Education, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Da Zhu
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Bei Feng
- Key Laboratory of Cancer Invasion and Metastasis of the Ministry of Education, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Lan Yu
- Key Laboratory of Cancer Invasion and Metastasis of the Ministry of Education, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xun Tian
- Key Laboratory of Cancer Invasion and Metastasis of the Ministry of Education, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Ci Ren
- Key Laboratory of Cancer Invasion and Metastasis of the Ministry of Education, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Chun Gao
- Key Laboratory of Cancer Invasion and Metastasis of the Ministry of Education, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xiaomin Li
- Key Laboratory of Cancer Invasion and Metastasis of the Ministry of Education, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Ding Ma
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zheng Hu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China.,Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Hui Wang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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13
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Kou B, Liu W, Tang X, Kou Q. HMGA2 facilitates epithelial-mesenchymal transition in renal cell carcinoma by regulating the TGF-β/Smad2 signaling pathway. Oncol Rep 2017; 39:101-108. [PMID: 29138866 PMCID: PMC5783590 DOI: 10.3892/or.2017.6091] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Accepted: 11/01/2017] [Indexed: 12/11/2022] Open
Abstract
High-mobility group AT-hook 2 (HMGA2), a member of the high mobility group family, has been reported to correlate with cancer progression. However, there is no report concerning the correlation between HMGA2 and metastasis in renal cell carcinoma. In the present study, we found that HMGA2 was highly expressed in five renal cell carcinoma cell lines compared with that in the normal renal tubular epithelial HK2 cell line. Additionally, HMGA2 facilitated cell migration and invasion of renal cell carcinoma cells, as evidenced by wound healing and Transwell assays. Subsequently, our results revealed that the E-cadherin level was upregulated, while N-cadherin, Twist1 and Twist2 expression were downregulated in HMGA2-depleted ACHN cells. In contrast, overexpression of HMGA2 in 786-O cells enhanced epithelial-mesenchymal transition (EMT). In addition, analysis of the database Cancer Browser further validated the positive correlation between HGMA2 and Twist1 or Twist2 in renal cell carcinoma. Meanwhile, Kaplan-Meier analysis indicated that low HMGA2 expression was closely associated with an increased overall survival in renal cell carcinoma patients. To confirm the underlying mechanism of HMGA2-regulated EMT, our results revealed that silencing of HMGA2 downregulated the mRNA and protein levels of TGF-β and Smad2, while HMGA2 overexpression had the opposite effect. Furthermore, TGF-β overexpression could partially reverse the anti-metastatic effect and mesenchymal-epithelial transition (MET) by HMGA2 loss, while TGF-β deficiency impeded the pro-metastatic phenotype and high expression of EMT markers induced by HMGA2 overexpression. In summary, our results demonstrated that HMGA2 facilitated a metastatic phenotype and the EMT process in renal cell carcinoma cells in vitro through a TGF-β-dependent pathway. In addition, these data strongly suggest that HGMA2 may serve as a potential therapeutic target and prognostic biomarker against renal cell carcinoma in the future.
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Affiliation(s)
- Bo Kou
- Department of Cardiovascular Surgery, First Affiliated Hospital of Medical School, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Wei Liu
- Department of Urology, First Affiliated Hospital of Medical School, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Xiaoshuang Tang
- Department of Urology, Second Affiliated Hospital of Medical School, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Qingshan Kou
- Medical Center, First People's Hospital of Xianyang, Xianyang, Shaanxi 712000, P.R. China
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14
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Ping H, Guo L, Xi J, Wang D. Angiotensin II type 2 receptor-interacting protein 3a inhibits ovarian carcinoma metastasis via the extracellular HMGA2-mediated ERK/EMT pathway. Tumour Biol 2017. [PMID: 28651497 DOI: 10.1177/1010428317713389] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Local migration and long-distance metastasis is the main reason for higher mortality of ovarian cancer. Microtubule-associated tumor suppressor 1/angiotensin II type 2 receptor-interacting protein is associated with tumor initiation and progression and exerts anti-tumor effects. High mobility group AT-hook 2 is overexpressed in majority of metastatic carcinomas, which contributes to carcinomas metastasis through Snail-induced epithelial-to-mesenchymal transition signal pathway. The purpose of this study was to investigate the signal pathway of microtubule-associated tumor suppressor 1/angiotensin II type 2 receptor-interacting protein-mediated anti-tumor effects. Our data observed that ovarian carcinoma cells exhibited lower expression of angiotensin II type 2 receptor-interacting protein 3a and higher expression of high mobility group AT-hook 2 compared to normal ovarian cells. Restoration of angiotensin II type 2 receptor-interacting protein 3a expression in ovarian carcinoma cells inhibited high mobility group AT-hook 2 expression and exhibited anti-proliferative effects. In addition, angiotensin II type 2 receptor-interacting protein 3a treatment suppressed the phosphorylation of epithelial-to-mesenchymal transition and extracellular signal-regulated kinase in ovarian carcinoma cells. We also observed that angiotensin II type 2 receptor-interacting protein 3a restoration downregulated expression of Snail, E-Cadherin, N-Cadherin, and Vimentin in ovarian carcinoma cells, whereas angiotensin II type 2 receptor-interacting protein 3a knockdown enhanced the phosphorylation of extracellular signal-regulated kinase and epithelial-to-mesenchymal transition. In vivo assay indicated that angiotensin II type 2 receptor-interacting protein 3a inhibited ovarian tumor growth and elevated survival of tumor-bearing immunodeficient mice. Tumor histological analysis indicated that Snail, E-Cadherin, N-Cadherin, and Vimentin expression levels were downregulated via decreasing high mobility group AT-hook 2 expression. Furthermore, upregulation of angiotensin II type 2 receptor-interacting protein 3a impaired the phenotype of extracellular signal-regulated kinase and epithelial-to-mesenchymal transition in ovarian carcinoma cells and tumor tissues. Taken together, angiotensin II type 2 receptor-interacting protein 3a presents potential in suppressing the proliferation and aggressiveness of ovarian carcinoma cells through the high mobility group AT-hook 2-mediated extracellular signal-regulated kinase/epithelial-to-mesenchymal transition signal pathway.
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Affiliation(s)
- Huang Ping
- Department of Gynaecology, Cangzhou Central Hospital, Cangzhou, China
| | - Liang Guo
- Department of Gynaecology, Cangzhou Central Hospital, Cangzhou, China
| | - Jie Xi
- Department of Gynaecology, Cangzhou Central Hospital, Cangzhou, China
| | - Donghui Wang
- Department of Gynaecology, Cangzhou Central Hospital, Cangzhou, China
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15
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Liu HY, Pan XL, Tian JN, Sun H, Huan Q, Huang YL, Liu JQ. Na 7CrCuW 11O 39.16H 2O induces apoptosis in human ovarian cancer SKOV3 cells through the p38 signaling pathway. Oncol Lett 2017; 13:2418-2424. [PMID: 28454413 DOI: 10.3892/ol.2017.5719] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 09/09/2016] [Indexed: 12/16/2022] Open
Abstract
Ovarian carcinoma is a common malignant disease worldwide with a poor therapeutic response. The present study investigated the effects of Na7CrCuW11O39.16H2O (CrCuW11) on ovarian cancer cell growth and investigated the mechanisms underlying its actions. The effects of CrCuW11 on cell viability and apoptosis were measured by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay, acridine orange/ethidium bromide staining and electron microscopy in human ovarian cancer SKOV3 cells. The expression of bcl-2-like protein 4 (Bax), B-cell lymphoma 2 (Bcl-2), cytochrome c, phosphorylated (p)-p38 and p38 was determined by western blot analysis. Caspase-3 activity was measured by caspase-3 activity kit. CrCuW11 concentrations of 1.87×10-3 mol. l-1 at 12 h reduced viability induced apoptosis in SKOV3 cells in a concentration-and time-dependent manner. Forced expression of CrCuW11 upregulated the expression of certain proteins (Bax, cytochrome c, and p-p38), and downregulated Bcl-2 protein expression. Furthermore, CrCuW11 also enhanced caspase-3 activity. The p38 inhibitor SB203580 was able to inhibit the activity of CrCuW11. Caspase-3 and p38 signaling pathways were associated with CrCuW11-regulated multiple targets involved in SKOV3 cell proliferation. Therefore, the results of the present study indicated that CrCuW11 may be used as a novel clinical drug for the treatment of ovarian cancer.
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Affiliation(s)
- Hai-Ying Liu
- Department of Reproductive Medicine Center, Key Laboratory for Reproductive Medicine of Guangdong, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510005, P.R. China
| | - Xiu-Li Pan
- Department of Clinical Skill Center Hongqi Hospital of Mudanjiang Medical College, Mudanjiang, Heilongjiang 150081, P.R. China
| | - Jia-Nan Tian
- Department of Neurology, 2nd Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang 150050 P.R. China
| | - Hui Sun
- College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150050 P.R. China
| | - Qing Huan
- Department of Reproductive Medicine Center, Key Laboratory for Reproductive Medicine of Guangdong, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510005, P.R. China
| | - Yu-Ling Huang
- Department of Reproductive Medicine Center, Key Laboratory for Reproductive Medicine of Guangdong, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510005, P.R. China
| | - Jian-Qiao Liu
- Department of Reproductive Medicine Center, Key Laboratory for Reproductive Medicine of Guangdong, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510005, P.R. China
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16
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Zhang H, Tang Z, Deng C, He Y, Wu F, Liu O, Hu C. HMGA2 is associated with the aggressiveness of tongue squamous cell carcinoma. Oral Dis 2016; 23:255-264. [PMID: 27809392 DOI: 10.1111/odi.12608] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 09/25/2016] [Accepted: 10/13/2016] [Indexed: 01/04/2023]
Affiliation(s)
- H Zhang
- Department of Oncology; The Second Xiangya Hospital; Central South University; Changsha China
| | - Z Tang
- Department of Oral and Maxillofacial Surgery; Xiangya Stomatological Hospital & School of Stomatology; Central South University; Changsha China
| | - C Deng
- Department of Oncology; The Second Xiangya Hospital; Central South University; Changsha China
| | - Y He
- Department of Oncology; The Second Xiangya Hospital; Central South University; Changsha China
| | - F Wu
- Department of Oncology; The Second Xiangya Hospital; Central South University; Changsha China
| | - O Liu
- Department of Orthodontics; Xiangya Stomatological Hospital&School of Stomatology; Central South University; Changsha China
| | - C Hu
- Department of Oncology; The Second Xiangya Hospital; Central South University; Changsha China
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17
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Xu L, Liao WL, Lu QJ, Li CG, Yuan Y, Xu ZY, Huang SD, Chen HZ. ANG Promotes Proliferation and Invasion of the Cell of Lung Squamous Carcinoma by Directly Up-Regulating HMGA2. J Cancer 2016; 7:862-71. [PMID: 27162546 PMCID: PMC4860804 DOI: 10.7150/jca.14440] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 03/15/2016] [Indexed: 01/04/2023] Open
Abstract
Objective: To determine the mechanism of Angiogenin(ANG) function involved in the carcinogenesis of lung squamous cell carcinoma. Methods: 12 patients' normal tissue and cancerous tissue were collected. ANG expression in the squamous cell carcinoma of the lung was evaluated by qRT-PCR and western-blot. The regulation of ANG on proliferation, migration, invasion, and apoptosis of SK-MES-1 cells were analyzed by Cell Counting Kit-8, Transwell migration chamber, Transwell invasion chamber, and Annexin V-FITC assay, respectively. PCR array was utilized for screening potential target genes of ANG. Chromatin immunoprecipitation(ChIP) assays and luciferase assay were adopted for investigation of ANG's direct regulation on HMGA2. Results: ANG expression is increased in the squamous cell carcinoma of the lung tissue. In vitro experiments results indicated that overexpression of ANG promotes proliferation and invasion capability of SK-MES-1 cells. The candidate proliferation, migration, and invasion related ANG target gene found was HMGA2, expression levels of which were also enhanced in lung squamous cell carcinoma tissue. The direct regulation of ANG on HMGA2 was verified by ChIP and luciferase assay results. Furthermore, down-regulating HMGA2 significantly alleviated the suppression effects of ANG on proliferation, migration, and invasion of SK-MES-1 cells. Conclusions: Our data illustrated the mechanisms that ANG promoted the cell of SQCLC proliferation, migration, and invasion capacity via directly up-regulating HMGA2.
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Affiliation(s)
- Li Xu
- Department of Cardiothoracic surgery, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Wei-Lin Liao
- Department of Cardiothoracic surgery, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Qi-Jue Lu
- Department of Cardiothoracic surgery, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Chun-Guang Li
- Department of Cardiothoracic surgery, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Yang Yuan
- Department of Cardiothoracic surgery, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Zhi-Yun Xu
- Department of Cardiothoracic surgery, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Sheng-Dong Huang
- Department of Cardiothoracic surgery, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - He-Zhong Chen
- Department of Cardiothoracic surgery, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China
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18
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miR-26a suppresses EMT by disrupting the Lin28B/let-7d axis: potential cross-talks among miRNAs in IPF. J Mol Med (Berl) 2016; 94:655-65. [PMID: 26787543 DOI: 10.1007/s00109-016-1381-8] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 12/20/2015] [Accepted: 01/11/2016] [Indexed: 12/31/2022]
Abstract
UNLABELLED Idiopathic pulmonary fibrosis (IPF) is a chronic, progressive, and highly lethal fibrotic lung disease with unknown cause or cure. Although some microRNAs (miRNAs), such as miR-26a and let-7d, have been confirmed, the contribution to the pathophysiological processes of IPF, the roles of miRNAs and intrinsic links between them in fibrotic lung diseases are not yet well understood. In this study, we found that Lin28B could induce the process of epithelial-mesenchymal transition (EMT) by inhibiting let-7d, whereas inhibition of Lin28B mitigated TGF-β1-induced fibrogenesis and attenuated EMT in both cultured A549 cells and MLE-12 cells. More importantly, over-expression of miR-26a could simultaneously enhance the expression of let-7d in A549 cells, and further study confirmed that Lin28B was one of the direct targets of miR-26a, which mediates, at least in part, the regulatory effects of miR-26a on the biogenesis of let-7d. Finally, we constructed a regulatory network among miRNAs involved in the progression of IPF. Taken together, our study deciphered the essential role of Lin28B in the pathogenesis of EMT, and unraveled a novel mechanism that miR-26a is a modulator of let-7d. This study also defines the miRNAs network involved in IPF, which may have implications for developing new strategies for pulmonary fibrosis. KEY MESSAGE Upregulation of Lin28B contributes to idiopathic pulmonary fibrosis. Lin28B causes epithelial-mesenchymal transition (EMT) by inhibition of let-7d. Lin28B is one of the targets of microRNA-26a. miR-26a enhances the expression of let-7d via targeting regulation of Lin28B. A regulatory network among miRNAs involved in the progression of IPF.
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19
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Let-7a suppresses glioma cell proliferation and invasion through TGF-β/Smad3 signaling pathway by targeting HMGA2. Tumour Biol 2015; 37:8107-19. [PMID: 26715270 DOI: 10.1007/s13277-015-4674-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 12/16/2015] [Indexed: 12/17/2022] Open
Abstract
It has been shown that let-7a was associated with the tumorigenesis of glioma. Our study was designed to infer how let-7a targets high-mobility AT-hook 2 (HMGA2) and suppresses glioma cell proliferation, invasion, and migration. Glioma tissues from 60 glioma patients and 10 normal brain tissues were collected in this study. Real-time quantitative reverse transcription-PCR (qRT-PCR) and in situ hybridization were used to detect the expression levels of let-7a in tissues and cells. The HMGA2 and the proteins related to transforming growth factor-beta (TGF-β)/Smad3 signaling pathway were measured by immunohistochemistry and western blot. Glioma U87 cells were transfected with either let-7a mimics, HMGA2 small interfering RNA (siRNA), let-7a mimics + HMGA2, HMGA2, or scramble. A cell counting kit-8 (CCK-8) assay was used to detect and compare the difference among various transfection groups. Glioma tumor xenograft models on mice were built to evaluate the effects of let-7a and HMGA2 siRNA on glioma tumors in vivo. The expression level of let-7a significantly downregulated in glioma tissues, while the HMGA2 positive expression rate notably increased compared with those in normal brain tissues (all P < 0.05). Moreover, the expression levels of let-7a and HMGA2 were correlated with glioma grades (all P < 0.05). The proliferation of U87 cells transfected with let-7a mimics or HMGA2 siRNA was significantly inhibited in comparison to the blank control group and the apoptosis rates of U87 cells transfected with let-7a mimics or HMGA2 siRNA were significantly higher than those in the blank control group (all P < 0.05). Let-7a or HMGA2 siRNA could remarkably attenuate the invasion and migration ability of glioma cells (all P < 0.05). Apart from that, over-expressed exogenous HMGA2 could reverse the inhibition of glioma cell metastasis and proliferation induced by let-7a. As suggested by immunohistochemistry and western blot, the expression levels of TGF-β1 and p-Smad3 significantly decreased compared with the blank or scramble group (all P < 0.05). Thus, let-7a and HMGA2 siRNA could effectively suppress the growth of tumors in glioma xenograft models. Let-7a may suppress the proliferation and invasion of glioma cells through mediating TGF-β/Smad3 signaling pathway by targeting HMGA2.
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Yang E, Cisowski J, Nguyen N, O'Callaghan K, Xu J, Agarwal A, Kuliopulos A, Covic L. Dysregulated protease activated receptor 1 (PAR1) promotes metastatic phenotype in breast cancer through HMGA2. Oncogene 2015; 35:1529-40. [PMID: 26165842 DOI: 10.1038/onc.2015.217] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 04/11/2015] [Accepted: 04/13/2015] [Indexed: 12/24/2022]
Abstract
As the majority of patients with basal-like breast carcinoma present with invasive, metastatic disease that do not respond to available therapies, it is essential to identify new therapeutic targets that impact invasion and metastasis. Protease-activated receptor 1 (PAR1), a G-protein coupled receptor has been shown to act as an oncogene, but underlying mechanisms are not well understood. Here, we show that ectopic expression of functionally active PAR1 in MCF-7 cells induced a hormone-refractory, invasive phenotype representative of advanced basal-like breast carcinoma that readily formed metastatic lesions in lungs of mice. PAR1 was found to globally upregulate mesenchymal markers, including vimentin, a direct target of PAR1, and downregulate the epithelial markers including E-cadherin, as well as estrogen receptor. In contrast, non-signaling PAR1 mutant receptor did not lead to an invasive, hormone refractory phenotype. PAR1 expression increased spheroid formation and the level of stemness markers and self-renewal capacity in human breast cancer cells. We identified HMGA2 (high mobility group A2) as an important regulator of PAR1-mediated invasion. Inhibition of PAR1 signaling suppresses HMGA2-driven invasion in breast cancer cells. HMGA2 gene and protein are highly expressed in metastatic breast cancer cells. Overall, our results show that PAR1/HMGA2 pathway may present a novel therapeutic target.
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Affiliation(s)
- E Yang
- Molecular Oncology Research Institute, Tufts Medical Center, Boston, MA, USA.,Department of Biochemistry and Tufts Medical Center, Boston, MA, USA
| | - J Cisowski
- Molecular Oncology Research Institute, Tufts Medical Center, Boston, MA, USA
| | - N Nguyen
- Molecular Oncology Research Institute, Tufts Medical Center, Boston, MA, USA
| | - K O'Callaghan
- Molecular Oncology Research Institute, Tufts Medical Center, Boston, MA, USA
| | - J Xu
- Molecular Oncology Research Institute, Tufts Medical Center, Boston, MA, USA
| | - A Agarwal
- Molecular Oncology Research Institute, Tufts Medical Center, Boston, MA, USA
| | - A Kuliopulos
- Molecular Oncology Research Institute, Tufts Medical Center, Boston, MA, USA.,Department of Biochemistry and Tufts Medical Center, Boston, MA, USA.,Division of Hematology/Oncology, Tufts Medical Center, Boston, MA, USA.,Department of Medicine, Tufts Medical Center, Boston, MA, USA
| | - L Covic
- Molecular Oncology Research Institute, Tufts Medical Center, Boston, MA, USA.,Department of Biochemistry and Tufts Medical Center, Boston, MA, USA.,Division of Hematology/Oncology, Tufts Medical Center, Boston, MA, USA.,Department of Medicine, Tufts Medical Center, Boston, MA, USA
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Low-molecular-mass secretome profiling identifies HMGA2 and MIF as prognostic biomarkers for oral cavity squamous cell carcinoma. Sci Rep 2015; 5:11689. [PMID: 26138061 PMCID: PMC4650660 DOI: 10.1038/srep11689] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Accepted: 05/11/2015] [Indexed: 12/12/2022] Open
Abstract
The profiling of cancer cell secretomes is considered to be a good strategy for identifying cancer-related biomarkers, but few studies have focused on identifying low-molecular-mass (LMr) proteins (<15 kDa) in cancer cell secretomes. Here, we used tricine-SDS-gel-assisted fractionation and LC-MS/MS to systemically identify LMr proteins in the secretomes of five oral cavity squamous cell carcinoma (OSCC) cell lines. Cross-matching of these results with nine OSCC tissue transcriptome datasets allowed us to identify 33 LMr genes/proteins that were highly upregulated in OSCC tissues and secreted/released from OSCC cells. Immunohistochemistry and quantitative real-time PCR were used to verify the overexpression of two candidates, HMGA2 and MIF, in OSCC tissues. The overexpressions of both proteins were associated with cervical metastasis, perineural invasion, deeper tumor invasion, higher overall stage, and a poorer prognosis for post-treatment survival. Functional assays further revealed that both proteins promoted the migration and invasion of OSCC cell lines in vitro. Collectively, our data indicate that the tricine-SDS-gel/LC-MS/MS approach can be used to efficiently identify LMr proteins from OSCC cell secretomes, and suggest that HMGA2 and MIF could be potential tissue biomarkers for OSCC.
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Xia Y, He Z, Liu B, Wang P, Chen Y. Downregulation of Meg3 enhances cisplatin resistance of lung cancer cells through activation of the WNT/β-catenin signaling pathway. Mol Med Rep 2015; 12:4530-4537. [PMID: 26059239 DOI: 10.3892/mmr.2015.3897] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2014] [Accepted: 03/03/2015] [Indexed: 11/05/2022] Open
Abstract
Maternally expressed gene 3 (Meg3) has been shown to promote tumor progression. However, the role of Meg3 in the development of a chemoresistant phenotype of human lung cancer has remains. Reverse transcription‑quantitative polymerase chain reaction analysis was used to determine the expression of Meg3. Flow cytometric analysis and MTT assay were also used to investigate the cell cycle and apoptosis. The present study detected that the expression levels of Meg3 were significantly lower in cisplatin‑resistant A549/DDP lung cancer cells, compared with those in parental A549 cells. Furthermore, upregulation of Meg3 was able to re‑sensitize the A549/DDP cells to cisplatin in vitro. Whereas downregulation of Meg3, by RNA interference, decreased the sensitivity of A549 cells to cisplatin. The results of the present study also demonstrated that the Meg3‑mediated chemosensitivity enhancement was associated with the induction of cell-cycle arrest and increased apoptosis, through regulation of p53, β‑catenin and survivin, which is a target gene of the WNT/β‑catenin signaling pathway. In conclusion, these results suggested that Meg3 may have a crucial role in the development of cisplatin resistance in non-small cell lung cancer.
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Affiliation(s)
- Yang Xia
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Zhicheng He
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Bin Liu
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Pengli Wang
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Yijiang Chen
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
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Liang JW, Shi ZZ, Shen TY, Che X, Wang Z, Shi SS, Xu X, Cai Y, Zhao P, Wang CF, Zhou ZX, Wang MR. Identification of genomic alterations in pancreatic cancer using array-based comparative genomic hybridization. PLoS One 2014; 9:e114616. [PMID: 25502777 PMCID: PMC4263743 DOI: 10.1371/journal.pone.0114616] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Accepted: 11/12/2014] [Indexed: 12/13/2022] Open
Abstract
Background Genomic aberration is a common feature of human cancers and also is one of the basic mechanisms that lead to overexpression of oncogenes and underexpression of tumor suppressor genes. Our study aims to identify frequent genomic changes in pancreatic cancer. Materials and Methods We used array comparative genomic hybridization (array CGH) to identify recurrent genomic alterations and validated the protein expression of selected genes by immunohistochemistry. Results Sixteen gains and thirty-two losses occurred in more than 30% and 60% of the tumors, respectively. High-level amplifications at 7q21.3–q22.1 and 19q13.2 and homozygous deletions at 1p33–p32.3, 1p22.1, 1q22, 3q27.2, 6p22.3, 6p21.31, 12q13.2, 17p13.2, 17q21.31 and 22q13.1 were identified. Especially, amplification of AKT2 was detected in two carcinomas and homozygous deletion of CDKN2C in other two cases. In 15 independent validation samples, we found that AKT2 (19q13.2) and MCM7 (7q22.1) were amplified in 6 and 9 cases, and CAMTA2 (17p13.2) and PFN1 (17p13.2) were homozygously deleted in 3 and 1 cases. AKT2 and MCM7 were overexpressed, and CAMTA2 and PFN1 were underexpressed in pancreatic cancer tissues than in morphologically normal operative margin tissues. Both GISTIC and Genomic Workbench software identified 22q13.1 containing APOBEC3A and APOBEC3B as the only homozygous deletion region. And the expression levels of APOBEC3A and APOBEC3B were significantly lower in tumor tissues than in morphologically normal operative margin tissues. Further validation showed that overexpression of PSCA was significantly associated with lymph node metastasis, and overexpression of HMGA2 was significantly associated with invasive depth of pancreatic cancer. Conclusion These recurrent genomic changes may be useful for revealing the mechanism of pancreatic carcinogenesis and providing candidate biomarkers.
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Affiliation(s)
- Jian-Wei Liang
- Department of Abdominal Surgical Oncology, Cancer Hospital and Institute, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Zhi-Zhou Shi
- Faculty of Medicine, Kunming University of Science and Technology, Kunming, China
- * E-mail: (MRW); (ZZS)
| | - Tian-Yun Shen
- Faculty of Medicine, Kunming University of Science and Technology, Kunming, China
| | - Xu Che
- Department of Abdominal Surgical Oncology, Cancer Hospital and Institute, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Zheng Wang
- Department of Abdominal Surgical Oncology, Cancer Hospital and Institute, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Su-Sheng Shi
- Department of Pathology, Cancer Hospital and Institute, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Xin Xu
- State Key Laboratory of Molecular Oncology, Cancer Hospital and Institute, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Yan Cai
- State Key Laboratory of Molecular Oncology, Cancer Hospital and Institute, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Ping Zhao
- Department of Abdominal Surgical Oncology, Cancer Hospital and Institute, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Cheng-Feng Wang
- Department of Abdominal Surgical Oncology, Cancer Hospital and Institute, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Zhi-Xiang Zhou
- Department of Abdominal Surgical Oncology, Cancer Hospital and Institute, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Ming-Rong Wang
- State Key Laboratory of Molecular Oncology, Cancer Hospital and Institute, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
- * E-mail: (MRW); (ZZS)
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Tezcan G, Tunca B, Bekar A, Yalcin M, Sahin S, Budak F, Cecener G, Egeli U, Demir C, Guvenc G, Yilmaz G, Erkan LG, Malyer H, Taskapilioglu MO, Evrensel T, Bilir A. Ficus carica latex prevents invasion through induction of let-7d expression in GBM cell lines. Cell Mol Neurobiol 2014; 35:175-87. [PMID: 25212824 DOI: 10.1007/s10571-014-0109-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 08/27/2014] [Indexed: 02/03/2023]
Abstract
Glioblastoma multiforme (GBM) is one of the deadliest human malignancies. A cure for GBM remains elusive, and the overall survival time is less than 1 year. Thus, the development of more efficient therapeutic approaches for the treatment of these patients is required. Induction of tumor cell death by certain phytochemicals derived from medicinal herbs and dietary plants has become a new frontier for cancer therapy research. Although the cancer suppressive effect of Ficus carica (fig) latex (FCL) has been determined in a few cancer types, the effect of this latex on GBM tumors has not been investigated. Therefore, in the current study, the anti-proliferative activity of FCL and the effect of the FCL-temozolomide (TMZ) combination were tested in the T98G, U-138 MG, and U-87 MG GBM cell lines using the WST-1 assay. The mechanism of cell death was analyzed using Annexin-V/FITC and TUNEL assays, and the effect of FCL on invasion was tested using the chick chorioallantoic membrane assay. To determine the effect of FCL on GBM progression, the expression levels of 40 GBM associated miRNAs were analyzed in T98G cells using RT-qPCR. According to the obtained data, FCL causes cell death in GBM cells with different responses to TMZ, and this effect is synergistically increased in combination with TMZ. In addition, the current study is the first to demonstrate the effect of FCL on modulation of let-7d expression, which may be an important underlying mechanism of the anti-invasive effect of this extract.
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Affiliation(s)
- Gulcin Tezcan
- Department of Medical Biology, Medical Faculty, Uludag University, Bursa, Turkey
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Liu H, Li P, Li B, Sun P, Zhang J, Wang B, Jia B. RKIP inhibits gastric cancer cell survival and invasion by regulating the expression of HMGA2 and OPN. Tumour Biol 2014; 35:11949-58. [PMID: 25172097 DOI: 10.1007/s13277-014-2486-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 08/08/2014] [Indexed: 12/28/2022] Open
Abstract
The objective of this study was to explore the mechanism via which Raf kinase inhibitor protein (RKIP) suppresses the invasion of gastric cancer cells and promote apoptosis, with an attempt to provide evidences for the application of RKIP in treating gastric cancer. The recombinant plasmid pcDNA3.1-RKIP or RKIP-shRNA was transfected into the gastric cancer cell line SGC-7901 using liposome. Then, the messenger RNA (mRNA) and protein expressions of RKIP, HMGA2, and OPN were detected using qPCR and Western blotting. The effects of HMGA2 on the proliferation, apoptosis, and invasion of SGC-7901 cells were detected using flow cytometry and Transwell assay. To further explore the regulatory effect of PKIP on the biological activities of HMGA2, we over-expressed or knock down RKIP and HMGA2 simultaneously and detected its effects on the proliferation, apoptosis, and invasion of SGC-7901 cells. As shown by qPCR and Western blotting, after over-expression of RKIP in SGC-7901 cells, the mRNA and protein expressions of RKIP significantly increased (P < 0.01), whereas the mRNA and protein expressions of HMGA2 and OPN significantly decreased (P < 0.01). In contrast, the transfection of RKIP-shRNA in the SGC-7901 cells resulted in opposite results. After over-expression of HMGA2 in SGC-7901 cells, the protein expression of HMGA2 significantly increased (P < 0.01); however, it significantly decreased after the transfection of HMGA2-shRNA (P < 0.01). As shown by Transwell assay and flow cytometry, After the over-expression of HMGA2 in SGC-7901 cells, the (G2 + S) phase fraction significantly increased (P < 0.01); also, the percentage of the apoptotic cells significantly declined (P < 0.05) and the number of invasive cells significantly increased (P < 0.05). However, the interference of the expression of HMGA2 resulted in opposite results. The simultaneous over-expression of RKIP and HMGA2 in SGC-7901 cells or the simultaneous interference of RKIP and HMGA2 showed no significant difference with the control group in terms of (G2 + S) phase fraction, percentage of apoptotic cells, and number of invasive cells (P > 0.05). In conclusion, RKIP can inhibit the survival and invasion of gastric cancer cells and promote apoptosis, possibly by regulating the expression of HMGA2 or OPN.
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Affiliation(s)
- Hongyi Liu
- Department of Surgical Oncology, General Hospital of Chinese People's Liberation Army, No. 28, Fuxing Rd, Beijing, 100853, People's Republic of China
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