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Boscaro C, Ramaschi GE, Trevisi L, Cignarella A, Bolego C. MiR-206 inhibits estrogen signaling and ovarian cancer cell migration without affecting GPER. Life Sci 2023; 333:122135. [PMID: 37778413 DOI: 10.1016/j.lfs.2023.122135] [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: 06/07/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/03/2023]
Abstract
AIMS Estrogen-regulated pathways are involved in the etiology and progression of epithelial ovarian cancer (EOC), but the relative contribution of estrogen receptor isoforms is unclear. Only a subset of patients responds to antiestrogens including tamoxifen. Based on our previous evidence that miR-206 behaves as an oncosuppressor in EOC, we hypothesized that miR-206 would interfere with G protein-coupled estrogen receptor (GPER)-mediated signaling and cell motility. MAIN METHODS PFKFB3 and FAK proteins from OC cells challenged with selective estrogen receptor agonist and antagonist were measured by Western blotting. Cell proliferation and motility were analyzed by MTT and Boyden chamber, respectively. Estrogen-dependent cells were transfected with miR-206 mimic or control using Lipofectamine. KEY FINDINGS The migration of SKOV3 and OVCAR5 cells significantly increased following treatment with 17β-estradiol (E2) and the selective GPER agonist G1. However, tamoxifen failed to inhibit E2 effect and even promoted SKOV3 cell migration. Estrogen receptor ligands did not affect SKOV3 proliferation. The GPER antagonist G15 significantly prevented E2-mediated upregulation of PFKFB3 expression, while G1 concentration-dependently upregulated PFKFB3 levels. Consistent with the functional link between PFKFB3 and FAK activation, E2 and G1 increased FAK phosphorylation at Tyr397. Transfection with miR-206 abolished estrogen-induced EOC migration and down-regulated PFKFB3 protein levels. Notably, miR-206 transfection reduced ERα protein abundance, whereas GPER amount was unchanged. SIGNIFICANCE By blocking estrogen signaling and G1-induced EOC cell invasiveness with no direct interference with GPER levels, miR-206 mimics have the potential to act as pathway-selective antagonists and deserve further testing as RNA therapeutics in estrogen-dependent EOC.
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Affiliation(s)
| | | | - Lucia Trevisi
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Italy
| | | | - Chiara Bolego
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Italy.
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2
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Ruiz Esparza Garrido R, Gutiérrez M, Ángel Velázquez Flores M. Circulating cervical cancer biomarkers potentially useful in medical attention (Review). Mol Clin Oncol 2023; 18:13. [PMID: 36761385 PMCID: PMC9892968 DOI: 10.3892/mco.2023.2609] [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: 09/01/2022] [Accepted: 12/27/2022] [Indexed: 01/19/2023] Open
Abstract
Cervical cancer (CC) is a public health problem worldwide, including Mexico. This type of cancer is the fourth most frequent in women worldwide; in Mexico it is the second most common type in women after breast cancer. The diagnosis of CC is based mainly on Pap smears and colposcopy and the identification of molecular tools that serve as a support for these methods is urgent. Regarding this, differential expressions of specific circulating biomolecules has been detected and, based on this, they have been postulated as potential biomarkers for CC diagnosis, prognosis, and/or to identify the response to treatments. Importantly, the combined analysis of these molecules considerably improves their efficacy as biomarkers and their potential use in the medical attention is promising.
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Affiliation(s)
- Ruth Ruiz Esparza Garrido
- Investigadora por México, Non-coding RNAs Laboratory, Medical Research Unit in Human Genetics, Children's Hospital ‘Dr. Silvestre Frenk Freund’, National Medical Center XXI Century, Mexican Institute of Social (Instituto Mexicano del Seguro Social, IMSS), Doctores, Mexico City 06720, Mexico
| | - Mercedes Gutiérrez
- ATSO PHARMA Laboratory, Jardines del Pedregal, Álvaro Obregón, Mexico City 01900, Mexico
| | - Miguel Ángel Velázquez Flores
- Non-coding RNAs Laboratory, Medical Research Unit in Human Genetics, Children's Hospital ‘Dr. Silvestre Frenk Freund’, National Medical Center XXI Century, Mexican Institute of Social (Instituto Mexicano del Seguro Social, IMSS), Doctores, Mexico City 06720, Mexico,Correspondence to: Dr Miguel Ángel Velázquez Flores, Non-coding RNAs Laboratory, Medical Research Unit in Human Genetics, Children's Hospital ‘Dr. Silvestre Frenk Freund’, National Medical Center XXI Century, Mexican Institute of Social Security, 330 Cuauhtémoc Avenue, Doctores, Mexico City 06720, Mexico
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3
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Zhao Y, He JY, Cui JZ, Meng ZQ, Zou YL, Guo XS, Chen X, Wang X, Yan LT, Han WX, Li C, Guo L, Bu H. Detection of genes mutations in cerebrospinal fluid circulating tumor DNA from neoplastic meningitis patients using next generation sequencing. BMC Cancer 2020; 20:690. [PMID: 32711494 PMCID: PMC7382072 DOI: 10.1186/s12885-020-07172-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 07/13/2020] [Indexed: 02/08/2023] Open
Abstract
Background This study profiled the somatic genes mutations and the copy number variations (CNVs) in cerebrospinal fluid (CSF)-circulating tumor DNA (ctDNA) from patients with neoplastic meningitis (NM). Methods A total of 62 CSF ctDNA samples were collected from 58 NM patients for the next generation sequencing. The data were bioinformatically analyzed by (Database for Annotation, Visualization and Integrated Discovery) DAVID software. Results The most common mutated gene was TP53 (54/62; 87.10%), followed by EGFR (44/62; 70.97%), PTEN (39/62; 62.90%), CDKN2A (32/62; 51.61%), APC (27/62: 43.55%), TET2 (27/62; 43.55%), GNAQ (18/62; 29.03%), NOTCH1 (17/62; 27.42%), VHL (17/62; 27.42%), FLT3 (16/62; 25.81%), PTCH1 (15/62; 24.19%), BRCA2 (13/62; 20.97%), KDR (10/62; 16.13%), KIT (9/62; 14.52%), MLH1 (9/62; 14.52%), ATM (8/62; 12.90%), CBL (8/62; 12.90%), and DNMT3A (7/62; 11.29%). The mutated genes were enriched in the PI3K-Akt signaling pathway by the KEGG pathway analysis. Furthermore, the CNVs of these genes were also identified in these 62 samples. The mutated genes in CSF samples receiving intrathecal chemotherapy and systemic therapy were enriched in the ERK1/2 signaling pathway. Conclusions This study identified genes mutations in all CSF ctDNA samples, indicating that these mutated genes may be acted as a kind of biomarker for diagnosis of NM, and these mutated genes may affect meningeal metastasis through PI3K-Akt signaling pathway.
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Affiliation(s)
- Yue Zhao
- Department of Neurology, The Second Hospital of Hebei Medical University, 215 Heping West Road, Shijiazhuang, Hebei, China
| | - Jun Ying He
- Department of Neurology, The Second Hospital of Hebei Medical University, 215 Heping West Road, Shijiazhuang, Hebei, China
| | - Jun Zhao Cui
- Department of Neurology, The Second Hospital of Hebei Medical University, 215 Heping West Road, Shijiazhuang, Hebei, China
| | - Zi-Qi Meng
- Wenzhou Medical University, Wenzhou, China
| | - Yue Li Zou
- Department of Neurology, The Second Hospital of Hebei Medical University, 215 Heping West Road, Shijiazhuang, Hebei, China
| | - Xiao Su Guo
- Department of Neurology, The Second Hospital of Hebei Medical University, 215 Heping West Road, Shijiazhuang, Hebei, China
| | - Xin Chen
- Department of Neurology, The Second Hospital of Hebei Medical University, 215 Heping West Road, Shijiazhuang, Hebei, China
| | - Xueliang Wang
- San Valley Biotechnology Incorporated, Beijing, China
| | - Li-Tian Yan
- Department of Neurology, The Second Hospital of Hebei Medical University, 215 Heping West Road, Shijiazhuang, Hebei, China
| | - Wei Xin Han
- Department of Neurology, The Second Hospital of Hebei Medical University, 215 Heping West Road, Shijiazhuang, Hebei, China
| | - Chunyan Li
- Department of Neurology, The Second Hospital of Hebei Medical University, 215 Heping West Road, Shijiazhuang, Hebei, China
| | - Li Guo
- Department of Neurology, The Second Hospital of Hebei Medical University, 215 Heping West Road, Shijiazhuang, Hebei, China
| | - Hui Bu
- Department of Neurology, The Second Hospital of Hebei Medical University, 215 Heping West Road, Shijiazhuang, Hebei, China.
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4
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Li X, Huang Q, Wang S, Huang Z, Yu F, Lin J. HER4 promotes the growth and metastasis of osteosarcoma via the PI3K/AKT pathway. Acta Biochim Biophys Sin (Shanghai) 2020; 52:345-362. [PMID: 32181480 DOI: 10.1093/abbs/gmaa004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 01/05/2020] [Accepted: 01/20/2020] [Indexed: 11/13/2022] Open
Abstract
Osteosarcoma is the most common primary malignant bone tumor, which occurs in adolescents. As reported by our previous studies, HER4 indicates a poor prognosis of primary osteosarcoma. However, its mechanisms in the pathogenesis of osteosarcoma have not yet been studied. The purpose of this study was to investigate the role of HER4 in osteosarcoma and whether the PI3K/AKT pathway is involved. In this study, western blot analysis was used to investigate the expression of HER4 protein in osteosarcoma tissues and cell lines. CCK8 and transwell assays were used to detect the effects of HER4 on the proliferation, migration, and invasion of osteosarcoma cells in vitro. The effects of HER4 on the growth and metastasis of osteosarcoma in vivo were detected by tumor formation and immunofluorescence in nude mice. The role of the PI3K/AKT pathway in HER4 regulation of the growth and metastasis of osteosarcoma was examined by western blot analysis and immunofluorescence assay. We found that HER4 protein was highly expressed in clinical osteosarcoma specimens and osteosarcoma cells. HER4 markedly promoted the proliferation, migration, and invasion of osteosarcoma cells in vitro as well as the growth and metastasis of osteosarcoma in vivo. HER4 overexpression upregulated the expression of phosphorylated protein kinase B (pAKT), proliferation marker antigen Ki67, and metastasis cell marker matrix metalloproteinase 9 (MMP9). Notably, PI3K/AKT inhibitor LY294002 significantly inhibited the effects of HER4 via the downregulation of pAKT, Ki67, and MMP9. Moreover, LY294002 markedly blocked the effects of HER4-induced upregulation of tumor malignancy. The present study suggests that HER4 may promote the growth and metastasis of osteosarcoma via the PI3K/AKT pathway. The HER4/PI3K/AKT pathway could serve as a potential target for the treatment of osteosarcoma.
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Affiliation(s)
- Xiaodong Li
- Department of Orthopedics, the First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China
| | - Qingshan Huang
- Department of Orthopedics, the First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China
| | - Shenglin Wang
- Department of Orthopedics, the First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China
| | - Zhen Huang
- Department of Orthopedics, the First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China
| | - Fengqiang Yu
- Department of Orthopedics, the First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China
| | - Jianhua Lin
- Department of Orthopedics, the First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China
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Tentler D, Lomert E, Novitskaya K, Barlev NA. Role of ACTN4 in Tumorigenesis, Metastasis, and EMT. Cells 2019; 8:cells8111427. [PMID: 31766144 PMCID: PMC6912194 DOI: 10.3390/cells8111427] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 11/08/2019] [Accepted: 11/10/2019] [Indexed: 12/11/2022] Open
Abstract
The actin-binding protein ACTN4 belongs to a family of actin-binding proteins and is a non-muscle alpha-actinin that has long been associated with cancer development. Numerous clinical studies showed that changes in ACTN4 gene expression are correlated with aggressiveness, invasion, and metastasis in certain tumors. Amplification of the 19q chromosomal region where the gene is located has also been reported. Experimental manipulations with ACTN4 expression further confirmed its involvement in cell proliferation, motility, and epithelial-mesenchymal transition (EMT). However, both clinical and experimental data suggest that the effects of ACTN4 up- or down-regulation may vary a lot between different types of tumors. Functional studies demonstrated its engagement in a number of cytoplasmic and nuclear processes, ranging from cytoskeleton reorganization to regulation of different signaling pathways. Such a variety of functions may be the reason behind cell type and cell line specific responses. Herein, we will review research progress and controversies regarding the prognostic and functional significance of ACTN4 for tumorigenesis.
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Affiliation(s)
- Dmitri Tentler
- Institute of Cytology, Russian Academy of Sciences, 4 Tikhoretsky ave., 194064 Saint Petersburg, Russia; (E.L.); (K.N.); (N.A.B.)
- Correspondence: or ; Tel.: +7-921-406-2058
| | - Ekaterina Lomert
- Institute of Cytology, Russian Academy of Sciences, 4 Tikhoretsky ave., 194064 Saint Petersburg, Russia; (E.L.); (K.N.); (N.A.B.)
| | - Ksenia Novitskaya
- Institute of Cytology, Russian Academy of Sciences, 4 Tikhoretsky ave., 194064 Saint Petersburg, Russia; (E.L.); (K.N.); (N.A.B.)
| | - Nikolai A. Barlev
- Institute of Cytology, Russian Academy of Sciences, 4 Tikhoretsky ave., 194064 Saint Petersburg, Russia; (E.L.); (K.N.); (N.A.B.)
- Moscow Institute of Physics and Technology, Dolgoprudny, 141701 Moscow, Russia
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6
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Ghasemi A, Saeidi J, Mohtashami M, Hashemy SI. Estrogen-independent role of ERα in ovarian cancer progression induced by leptin/Ob-Rb axis. Mol Cell Biochem 2019; 458:207-217. [PMID: 31077012 DOI: 10.1007/s11010-019-03544-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 05/02/2019] [Indexed: 12/21/2022]
Abstract
Leptin induces ovarian cancer cell invasion via overexpression of MMP7, MMP9, and upA. In addition, the key role of ERα in leptin-increased cell growth was indicated. However, the influence of ER on leptin-mediated cell invasion remains still unknown. The present study was designed to evaluate the E2-independent effect of ERα/β on leptin-mediated cell invasion and cell proliferation in ovarian cancer. We utilized SKOV3 cancer (expressing OB-Rb and ERα/β, insensitive to estrogen) and OVCAR3 (expressing OB-Rb) cell lines to show the involvement of ER in leptin-mediated effects in an E2-independent manner. MTT, BrdU, and BD matrigel invasion assays were applied to analyze cell growth, proliferation, and invasion. The siRNA approach was used to confirm the role of ERα/β in leptin effects. Moreover, western blotting and Real-time PCR were employed to detect the OB-Rb, ER, MMP9/7, and upA proteins and mRNAs. Leptin, in the absence of E2, increased ERα expression in SKOV3 cells, which was attenuated using knockdown of OB-Rb gene by siRNA. The effect of leptin on the cell growth was promoted in the presence of PPT, but not in the presence of DNP and E2, which was lost when OB-Rb siRNA was transfected. Furthermore, ERα gene silencing and/or pre-incubation with ER antagonist (ICI 182,780, 10 nM) significantly reduced cell invasion and MMP9 expression stimulated by leptin. In conclusion, our findings demonstrated that ERα, but not ERβ, is involved in leptin-induced ovarian cancer in an E2-independent manner, providing new evidence for cancer progression in obesity-associated ovarian cancer.
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Affiliation(s)
- Ahmad Ghasemi
- Non-communicable Disease Research Center, Neyshabur University of Medical Sciences, Neyshabur, Iran. .,Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Jafar Saeidi
- Department of Physiology, School of Basic Science, Neyshabur Branch, Islamic Azad University, Neyshabur, Iran
| | - Mahnaz Mohtashami
- Department of Biology, School of Basic Science, Neyshabur Branch, Islamic Azad University, Neyshabur, Iran
| | - Seyed Isaac Hashemy
- Surgical Oncology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. .,Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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7
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Hodgkinson K, Forrest LA, Vuong N, Garson K, Djordjevic B, Vanderhyden BC. GREB1 is an estrogen receptor-regulated tumour promoter that is frequently expressed in ovarian cancer. Oncogene 2018; 37:5873-5886. [PMID: 29973689 PMCID: PMC6212416 DOI: 10.1038/s41388-018-0377-y] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 05/08/2018] [Accepted: 05/29/2018] [Indexed: 12/22/2022]
Abstract
Estrogenic hormone replacement therapy increases the risk of developing ovarian cancer, and estrogen promotes tumour initiation and growth in mouse models of this disease. GREB1 (Growth regulation by estrogen in breast cancer 1) is an ESR1 (estrogen receptor 1)-upregulated protein which may mediate estrogen action. GREB1 knockdown prevents hormone-driven proliferation of several breast and prostate cancer cell lines and prolongs survival of mice engrafted with ovarian cancer cells, but its mechanism of action remains unclear. In this study, we explored GREB1 function in ovarian cancer. GREB1 overexpression in ovarian cancer cell lines increased cell proliferation and migration and promoted a mesenchymal morphology associated with increased Col1a2, which encodes a collagen I subunit. GREB1 knockdown inhibited proliferation and promoted an epithelial morphology associated with decreased Col1a2. In human tissues, GREB1 was expressed in all ESR1-expressing tissues throughout the normal female reproductive tract, in addition to several tissues that did not show ESR1 expression. In a TMA of ovarian cancer cases, GREB1 was expressed in 75–85% of serous, endometrioid, mucinous, and clear cell carcinomas. Serous, endometrioid, and mucinous ovarian cancers were almost always positive for either ESR1 or GREB1, suggesting a possible reliance on signalling through ESR1 and/or GREB1. Targeting GREB1 may inhibit tumour-promoting pathways both downstream and independent of ESR1 and is therefore a possible treatment strategy worthy of further investigation.
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Affiliation(s)
- Kendra Hodgkinson
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON, Canada.,Centre for Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Laura A Forrest
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON, Canada.,Centre for Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Nhung Vuong
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON, Canada.,Centre for Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Kenneth Garson
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON, Canada.,Centre for Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Bojana Djordjevic
- Department of Pathology and Laboratory Medicine, The Ottawa Hospital, University of Ottawa, Ottawa, ON, Canada
| | - Barbara C Vanderhyden
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON, Canada. .,Centre for Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, ON, Canada.
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8
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α-Actinin-4 promotes metastasis in gastric cancer. J Transl Med 2017; 97:1084-1094. [PMID: 28581489 DOI: 10.1038/labinvest.2017.28] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 12/08/2016] [Accepted: 01/16/2017] [Indexed: 12/12/2022] Open
Abstract
Metastasis increases the mortality rate of gastric cancer, which is the third leading cause of cancer-associated deaths worldwide. This study aims to identify the genes promoting metastasis of gastric cancer (GC). A human cell motility PCR array was used to analyze a pair of tumor and non-tumor tissue samples from a patient with stage IV GC (T3N3M1). Expression of the dysregulated genes was then evaluated in GC tissue samples (n=10) and cell lines (n=6) via qPCR. Expression of α-actinin-4 (ACTN4) was validated in a larger sample size (n=47) by qPCR, western blot and immunohistochemistry. Knockdown of ACTN4 with specific siRNAs was performed in GC cells, and adhesion assays, transwell invasion assays and migration assays were used to evaluate the function of these cells. Expression of potential targets of ACTN4 were then evaluated by qPCR. Thirty upregulated genes (greater than twofold) were revealed by the PCR array. We focused on ACTN4 because it was upregulated in 6 out of 10 pairs of tissue samples and 5 out of 6 GC cell lines. Further study indicated that ACTN4 was upregulated in 22/32 pairs of tissue samples at stage III &IV (P=0.0069). Knockdown of ACTN4 in GC cells showed no significant effect on cell proliferation, but significantly increased cell-matrix adhesion, as well as reduced migration and invasion of AGS, MKN7 and NCI-N87 cells. We found that NF-κB was downregulated in GC with the knockdown of ACTN4. In conclusion, this is the first study to indicate that ACTN4 is significantly upregulated in patients with metastatic GC. ACTN4 reduces cell adhesion and enhances migration and invasion of GC cells and may therefore be a novel therapeutic target for GC.
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9
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Ma H, Tian T, Liang S, Liu X, Shen H, Xia M, Liu X, Zhang W, Wang L, Chen S, Yu L. Estrogen receptor-mediated miR-486-5p regulation of OLFM4 expression in ovarian cancer. Oncotarget 2016; 7:10594-605. [PMID: 26871282 PMCID: PMC4891143 DOI: 10.18632/oncotarget.7236] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Accepted: 01/27/2016] [Indexed: 11/25/2022] Open
Abstract
Estrogen signaling influences the development and progression of ovarian tumors, but the underlying mechanisms are not well understood. In a previous study we demonstrated that impairment of estrogen receptor alpha (ERα)-mediated olfactomedin 4 (OLFM4) expression promotes the malignant progression of endometrioid adenocarcinoma, and we identified OLFM4 as a potential target of miR-486-5p. In this study we investigated the role of OLFM4 in ovarian serous adenocarcinoma. Ovarian serous adenocarcinoma tissues had reduced OLFM4 expression. Expression of OLFM4 was positively correlated with ERα expression, and estrogen (E2) treatment in ovarian cancer cells induced OLFM4 expression in an ERα-dependent manner. In contrast to ERα, miR-486-5p levels were inversely correlated with OLFM4 expression in ovarian serous adenocarcinoma. Ovarian cancer cells transfected with miR-486-5p mimics showed decreased OLFM4 mRNA expression, and ovarian cancer cells treated with E2 showed reduced cellular miR-486-5p levels. OLFM4 knockdown enhanced proliferation, migration, and invasion by ovarian cancer cells. Low expression of OLFM4 was also associated with high tumor FIGO stage and poor tumor differentiation. These results suggest OLFM4 is downregulated by miR-486-5p, which contributes to ovarian cancer tumorigenesis. Conversely, estrogen receptor signaling downregulates miR-486-5p and upregulates OLFM4 expression, slowing the development and progression of ovarian cancer.
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Affiliation(s)
- Hanyu Ma
- Department of Pathology, The First Affiliated Hospital, Sun Yat-sen (Zhongshan) University, Guangzhou, China
| | - Tian Tian
- Department of Pathology, The First Affiliated Hospital, Sun Yat-sen (Zhongshan) University, Guangzhou, China
| | - Shuang Liang
- Department of Pathology, The First Affiliated Hospital, Sun Yat-sen (Zhongshan) University, Guangzhou, China
| | - Xubin Liu
- Department of Pathology, The First Affiliated Hospital, Sun Yat-sen (Zhongshan) University, Guangzhou, China
| | - Hongwei Shen
- Department of Gynecology and Obstetrics, The First Affiliated Hospital, Sun Yat-sen (Zhongshan) University, Guangzhou, China
| | - Meng Xia
- Department of Gynecology and Obstetrics, The First Affiliated Hospital, Sun Yat-sen (Zhongshan) University, Guangzhou, China
| | - Xingyang Liu
- Department of Gynecology and Obstetrics, The First Affiliated Hospital, Sun Yat-sen (Zhongshan) University, Guangzhou, China
| | - Wenhui Zhang
- Department of Pathology, The First Affiliated Hospital, Sun Yat-sen (Zhongshan) University, Guangzhou, China
| | - Liantang Wang
- Department of Pathology, The First Affiliated Hospital, Sun Yat-sen (Zhongshan) University, Guangzhou, China
| | - Shangwu Chen
- State Key Laboratory for Biocontrol, Guangdong Key Laboratory of Pharmaceutical Functional Genes, Department of Biochemistry, School of Life Sciences, Sun Yat-sen (Zhongshan) University, Guangzhou, China
| | - Li Yu
- Department of Pathology, The First Affiliated Hospital, Sun Yat-sen (Zhongshan) University, Guangzhou, China
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10
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Jeon SY, Hwang KA, Choi KC. Effect of steroid hormones, estrogen and progesterone, on epithelial mesenchymal transition in ovarian cancer development. J Steroid Biochem Mol Biol 2016; 158:1-8. [PMID: 26873134 DOI: 10.1016/j.jsbmb.2016.02.005] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 02/04/2016] [Accepted: 02/07/2016] [Indexed: 12/12/2022]
Abstract
As the primary female sex steroid hormones, estrogens and progesterone play important roles to regulate growth, differentiation, and function of a broad range of target tissues in the human body and maintain the function of female reproductive tissues. Ovarian cancer is the most cause of cancer death in gynecological malignancy. Despite enormous outcomes in the understanding of ovarian cancer pathology, this disease has resulted in poor survival rates since most patients are asymptomatic until the disease has been metastasized. The exact molecular events leading to metastasis of ovarian tumor cells have not yet been well elucidated, although it is recognized that the acquisition of capacity for migration and invasiveness would be a necessary prerequisite. During metastasis, epithelial-mesenchymal transition (EMT) is an important process, in which epithelial cells lose their intracellular adhesion and cell polarity and acquire increased motility and invasive properties to become mesenchymal like cells. The process of cancer cells to undergo EMT is regulated through the up- and down- regulation of a multiple cellular markers and signaling proteins. In this review, we focused the roles of women sex steroid hormones, estrogen and progesterone, in ovarian cancer, especially the ovarian cancer undergoing EMT and metastatic process. All things considered, we may suggest that progesterone is a potent hormone which inhibits the growth of human ovarian cancer cells and development to metastasis whereas estrogen may act as a risk factor of ovarian cancer progression and that progesterone therapy may be an alternative clinically effective tool for the treatment of human ovarian cancer.
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Affiliation(s)
- So-Ye Jeon
- Laboratory of Biochemistry and Immunology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea
| | - Kyung-A Hwang
- Laboratory of Biochemistry and Immunology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea
| | - Kyung-Chul Choi
- Laboratory of Biochemistry and Immunology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 28644, Republic of Korea.
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11
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Lojkin I, Rubinek T, Orsulic S, Schwarzmann O, Karlan BY, Bose S, Wolf I. Reduced expression and growth inhibitory activity of the aging suppressor klotho in epithelial ovarian cancer. Cancer Lett 2015; 362:149-57. [PMID: 25827069 DOI: 10.1016/j.canlet.2015.03.035] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 03/16/2015] [Accepted: 03/17/2015] [Indexed: 12/22/2022]
Abstract
Klotho is an anti-aging transmembrane protein, which can be shed and function as a hormone. Accumulating data indicate klotho as a tumor suppressor in a wide array of malignancies, and we identified klotho as an inhibitor of the insulin-like growth factor (IGF-1) pathway in cancer cells. As this pathway is significant in the development of epithelial ovarian cancer (EOC) we studied klotho expression and activity in this tumor. Klotho mRNA levels were reduced in 16 of 19 EOC cell lines and immunohistochemistry analysis revealed high expression in normal ovaries, and reduced expression in 100 of 241 high grade papillary-serous adenocarcinoma of the ovaries, fallopian tubes and peritoneum. Reduced expression was associated with wild-type BRCA status. Klotho reduced EOC cell viability, enhanced cisplatin sensitivity, and reduced expression of mesenchymal markers. Finally, klotho inhibited IGF-1 pathway activation and inhibited transcriptional activity of the estrogen receptor. In conclusion, klotho is silenced in a substantial subset of the tumors and restoring its expression slows growth of EOC cells and inhibits major signaling pathways. As klotho is a hormone, treatment with klotho may serve as a novel treatment for EOC.
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Affiliation(s)
- Irina Lojkin
- Institute of Oncology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Tami Rubinek
- Institute of Oncology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Sandra Orsulic
- Women's Cancer Program, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Omer Schwarzmann
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Beth Y Karlan
- Women's Cancer Program, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Shikha Bose
- Department of Pathology & Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Ido Wolf
- Institute of Oncology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
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