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Pasha A, Kumar K, Heena SK, Arnold Emerson I, Pawar SC. Inhibition of NF-kB and COX-2 by andrographolide regulates the progression of cervical cancer by promoting PTEN expression and suppressing PI3K/AKT signalling pathway. Sci Rep 2024; 14:12020. [PMID: 38797813 PMCID: PMC11128455 DOI: 10.1038/s41598-024-57304-7] [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: 11/18/2023] [Accepted: 03/16/2024] [Indexed: 05/29/2024] Open
Abstract
In the face of recent advances in Cervical cancer (CC) treatment, therapeutic and surgical procedures for CC management are still inadequate. In the current study for the first time Andrographolide (Andro) has been explored for its multitarget therapeutic efficacy on NF-kB, COX-2, and PI3K/AKT expressions together in CC. The expression levels of NF-kB, COX-2, PI3K and PTEN in the CC patient samples, both at mRNA and protein levels have shown significant association with poor survival and increased tumor aggressiveness. The binding efficacy of Andro was investigated using molecular docking and molecular dynamic simulations, and the protein and ligand complex for NF-kB and COX-2 has shown high binding energy. Andro displayed cytotoxicity by impeding the in-vitro proliferation of CC cells. Andro significantly supressed the NF-kB, COX-2, and PI3K expression and enhanced the expression levels of PTEN at protein levels in-vitro. Andro induced apoptosis in a dose dependent manner and significantly inhibited the migration and invasion of CC cells. Andro exhibited similar activity in-vivo and suppressed the CC tumor growth in xenograft C57BL/6 mice model. The anti-tumor activity of Andro, both in-vitro and in-vivo has shown considerable downregulation of NF-kB and COX-2 and induced apoptosis through impeding the PI3K/AKT signalling pathway. These findings from the above study projects, administration of Andro as an effective alternate safe compound to curtail and impede cervical cancer progression.
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Affiliation(s)
- Akbar Pasha
- Department of Genetics and Biotechnology, University College of Science, Osmania University, Hyderabad, Telangana, 500007, India
| | - Kiran Kumar
- Department of Bioinformatics, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India
| | - S K Heena
- Department of Pathology, Osmania Medical College, Hyderabad, Telangana, 500095, India
| | - I Arnold Emerson
- Department of Bioinformatics, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India
| | - Smita C Pawar
- Department of Genetics and Biotechnology, University College of Science, Osmania University, Hyderabad, Telangana, 500007, India.
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Jia Y, Zou K, Zou L. Research progress of metabolomics in cervical cancer. Eur J Med Res 2023; 28:586. [PMID: 38093395 PMCID: PMC10717910 DOI: 10.1186/s40001-023-01490-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 10/30/2023] [Indexed: 12/17/2023] Open
Abstract
INTRODUCTION Cervical cancer threatens women's health seriously. In recent years, the incidence of cervical cancer is on the rise, and the age of onset tends to be younger. Prevention, early diagnosis and specific treatment have become the main means to change the prognosis of cervical cancer patients. Metabolomics research can directly reflect the changes of biochemical processes and microenvironment in the body, which can provide a comprehensive understanding of the changes of metabolites in the process of disease occurrence and development, and provide new ways for the prevention and diagnosis of diseases. OBJECTIVES The aim of this study is to review the metabolic changes in cervical cancer and the application of metabolomics in the diagnosis and treatment. METHODS PubMed, Web of Science, Embase and Scopus electronic databases were systematically searched for relevant studies published up to 2022. RESULTS With the emergence of metabolomics, metabolic regulation and cancer research are further becoming a focus of attention. By directly reflecting the changes in the microenvironment of the body, metabolomics research can provide a comprehensive understanding of the patterns of metabolites in the occurrence and development of diseases, thus providing new ideas for disease prevention and diagnosis. CONCLUSION With the continuous, in-depth research on metabolomics research technology, it will bring more benefits in the screening, diagnosis and treatment of cervical cancer with its advantages of holistic and dynamic nature.
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Affiliation(s)
- Yuhan Jia
- Department of Radiotherapy, The Second Hospital of Dalian Medical University, Dalian, Liaoning Province, China
| | - Kun Zou
- Department of Radiotherapy, The First Hospital of Dalian Medical University, Dalian, Liaoning Province, China.
| | - Lijuan Zou
- Department of Radiotherapy, The Second Hospital of Dalian Medical University, Dalian, Liaoning Province, China.
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Aisagbonhi O, Zare SY, Hasteh F, Binder P, Roma AA, Fadare O. PTEN Loss and ARID1A Mutation in an HPV-positive Metastatic Adenocarcinoma Diagnosed Almost 18 yr After an Intact Cone Excision for Endocervical Adenocarcinoma In Situ. Int J Gynecol Pathol 2022; 41:307-312. [PMID: 34282106 DOI: 10.1097/pgp.0000000000000811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
There have been previous reports of neoplasms with the morphology of endocervical adenocarcinoma in situ (AIS) that secondarily involve the ovaries, presumably through transtubal spread, with a smaller subset metastasizing to distant sites. These ovarian metastases have been discovered up to 7 yr postexcision of the endocervical lesion, consistent with the known potential for overtly invasive cervical carcinomas to recur late after primary curative management. Herein, we present a case of a premenopausal woman with a pelvic mass classified as metastatic human papillomavirus (HPV)-associated endocervical adenocarcinoma (p16-block immunoreactive, high-risk HPV positive by in situ hybridization with PTEN loss, ARID1A, and PBRM1 mutations detected by qualitative next-generation sequencing), identified 17.7 yr (212 mo) after a fertility-sparing cone excision with negative margins for endocervical AIS [HPV-associated, p16-block immunoreactive; PTEN, and BAF250a (ARID1a) expression retained]. Our case highlights: (1) the potential for a subset of lesions with the morphology of AIS to metastasize, and the extraordinarily long timeframe (almost 18 y, the longest reported to date) during which metastases may still be identified; (2) alterations in PTEN and ARID1A may play a role in the progression of a subset of endocervical carcinomas; and (3) the need for studies to evaluate the utility of incorporating ovarian/pelvic imaging into surveillance protocols following fertility-sparing excisions or ovarian-preserving hysterectomies, during the management of endocervical adenocarcinomas, as well as the need to counsel patients about the small but real risk of delayed discovery of ovarian metastases following fertility-preserving surgeries for AIS.
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Yuan DD, Jia CD, Yan MY, Wang J. Circular RNA hsa_circ_0000730 restrains cell proliferation, migration, and invasion in cervical cancer through miR-942-5p/PTEN axis. Kaohsiung J Med Sci 2021; 37:964-972. [PMID: 34562344 DOI: 10.1002/kjm2.12443] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 06/07/2021] [Accepted: 06/24/2021] [Indexed: 12/19/2022] Open
Abstract
Circular RNAs (circRNAs) play prominent roles in regulating the progression of cancers. This study is aimed to decipher the role of hsa_circ_0000730 in cervical cancer (CC).The differentially expressed circRNAs of CC were screened out from the Gene Expression Omnibus database. qRT-PCR was used to detect circ_0000730 expression in CC tissues and cell lines, and the Kaplan-Meier curve was adopted to figure out the relationship between circ_000730 expression and the overall survival time of CC patients. BrdU assay and Tanswell assay were utilized to examine the proliferation, migration, and invasion of CC cells. Western blot was adopted to detect PTEN protein expression. Bioinformatics analysis and dual-luciferase reporter assay were used to examine the target relationship between miR-942-5p and circ_0000730 or PTEN, respectively.Circ_0000730 was among the differentially expressed circRNAs in CC. Circ_0000730 was significantly down-regulated in the cancer tissues of 50 CC patients and CC cell lines. Additionally, underexpression of circ_0000730 was associated with the shorter survival time of CC patients. Gain- and loss-of-function assays highlighted that circ_0000730 significantly inhibited the proliferation, migration, and invasion of CC cells. Mechanistically, miR-942-5p was identified as a downstream target of circ_0000730, and circ_0000730 could positively regulate PTEN expression via repressing miR-942-5p in CC cells.Circ_0000730 inhibits the proliferation, migration, and invasion of CC cells via regulating miR-942-5p/PTEN axis. Circ_0000730 probably acts as a tumor suppressor in CC, and it may be a candidate target for the treatment of CC.
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Affiliation(s)
- Dan-Dan Yuan
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia, PR China
| | - Cun-De Jia
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia, PR China
| | - Ming-Yu Yan
- Department of Respiratory, The Third Affiliated Hospital of Inner Mongolia Medical College, Baotou, PR China
| | - Jian Wang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia, PR China
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Shin JW, Kim SH, Yoon JY. PTEN downregulation induces apoptosis and cell cycle arrest in uterine cervical cancer cells. Exp Ther Med 2021; 22:1100. [PMID: 34504554 PMCID: PMC8383748 DOI: 10.3892/etm.2021.10534] [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: 11/09/2020] [Accepted: 06/18/2021] [Indexed: 11/06/2022] Open
Abstract
The tumor suppressors PTEN and p53 are often downregulated in various human cancer types, which has been associated with a poor prognosis. Recent evidence implies that PTEN downregulation may induce growth arrest of kidney cells and cancer cells. In the present study, the role of PTEN in the proliferation and survival of cervical cancer cells was investigated. It was found that PTEN silencing promoted apoptosis and cell-cycle arrest, accompanied by a significant decrease in the proportion of cells in the S1 phase of the cell cycle. Moreover, PTEN silencing in cervical cancer cells increased levels of p53, p27, p21, phospho-ERK and cleaved caspase-3, and decreased levels of cyclin A2 and cyclin D1. Furthermore, PTEN knockdown significantly impacted the viability of cervical cancer cells. P53 silencing did not affect the ability of PTEN knockdown to induce apoptosis in cervical cancer cells. Taken together, the present study results imply that PTEN silencing induces apoptosis and decreases proliferation in cervical cancer cells; hence, PTEN inhibition may represent a promising strategy for the treatment of cervical cancer.
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Affiliation(s)
- Jin Woo Shin
- Department of Obstetrics and Gynecology, Gil Medical Center, College of Medicine, Gachon University, Incheon 21565, Republic of Korea
| | - Se-Hee Kim
- Gachon Medical Research Institute, Gil Medical Center, Gachon University, Incheon 21565, Republic of Korea
| | - Jin Young Yoon
- Gachon Medical Research Institute, Gil Medical Center, Gachon University, Incheon 21565, Republic of Korea
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Da Silva MLR, De Albuquerque BHDR, Allyrio TADMF, De Almeida VD, Cobucci RNDO, Bezerra FL, Andrade VS, Lanza DCF, De Azevedo JCV, De Araújo JMG, Fernandes JV. The role of HPV-induced epigenetic changes in cervical carcinogenesis (Review). Biomed Rep 2021; 15:60. [PMID: 34094536 PMCID: PMC8165754 DOI: 10.3892/br.2021.1436] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 03/10/2021] [Indexed: 12/12/2022] Open
Abstract
Cervical cancer is associated with infection by certain types of human papillomaviruses (HPVs), and this affects women worldwide. Despite the improvements in prevention and cure of HPV-induced cervical cancer, it remains the second most common type of cancer in women in the least developed regions of the world. Epigenetic modifications are stable long-term changes that occur in the DNA, and are part of a natural evolutionary process of necessary adaptations to the environment. They do not result in changes in the DNA sequence, but do affect gene expression and genomic stability. Epigenetic changes are important in several biological processes. The effects of the environment on gene expression can contribute to the development of numerous diseases. Epigenetic modifications may serve a critical role in cancer cells, by silencing tumor suppressor genes, activating oncogenes, and exacerbating defects in DNA repair mechanisms. Although cervical cancer is directly related to a persistent high-risk HPV infection, several epigenetic changes have been identified in both the viral DNA and the genome of the infected cells: DNA methylation, histone modification and gene silencing by non-coding RNAs, which initiate and sustain epigenetic changes. In the present review, recent advances in the role of epigenetic changes in cervical cancer are summarized.
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Affiliation(s)
- Martha Laysla Ramos Da Silva
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil.,Post-Graduate Program in Parasite Biology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil
| | | | | | - Valéria Duarte De Almeida
- Department of Biomedical Sciences, State University of Rio Grande do Norte, Mossoro 59607-360, Brazil
| | | | - Fabiana Lima Bezerra
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil
| | - Vania Sousa Andrade
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil.,Post-Graduate Program in Parasite Biology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil
| | - Daniel Carlos Ferreira Lanza
- Laboratory of Applied Molecular Biology, Department of Biochemistry, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil
| | | | - Josélio Maria Galvão De Araújo
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil.,Post-Graduate Program in Parasite Biology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil
| | - José Veríssimo Fernandes
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil.,Post-Graduate Program in Parasite Biology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil
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7
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Kim SH, Kang BC, Seong D, Lee WH, An JH, Je HU, Cha HJ, Chang HW, Kim SY, Kim SW, Han MW. EPHA3 Contributes to Epigenetic Suppression of PTEN in Radioresistant Head and Neck Cancer. Biomolecules 2021; 11:biom11040599. [PMID: 33919657 PMCID: PMC8073943 DOI: 10.3390/biom11040599] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/12/2021] [Accepted: 04/16/2021] [Indexed: 11/16/2022] Open
Abstract
EPHA3, a member of the EPH family, is overexpressed in various cancers. We demonstrated previously that EPHA3 is associated with radiation resistance in head and neck cancer via the PTEN/Akt/EMT pathway; the inhibition of EPHA3 significantly enhances the efficacy of radiotherapy in vitro and in vivo. In this study, we investigated the mechanisms of PTEN regulation through EPHA3-related signaling. Increased DNA methyltransferase 1 (DNMT1) and enhancer of zeste homolog 2 (EZH2) levels, along with increased histone H3 lysine 27 trimethylation (H3K27me3) levels, correlated with decreased levels of PTEN in radioresistant head and neck cancer cells. Furthermore, PTEN is regulated in two ways: DNMT1-mediated DNA methylation, and EZH2-mediated histone methylation through EPHA3/C-myc signaling. Our results suggest that EPHA3 could display a novel regulatory mechanism for the epigenetic regulation of PTEN in radioresistant head and neck cancer cells.
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Affiliation(s)
- Song-Hee Kim
- Department of Otolaryngology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan 44033, Korea; (S.-H.K.); (B.-C.K.); (D.S.); (W.-H.L.); (J.-H.A.)
| | - Byung-Chul Kang
- Department of Otolaryngology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan 44033, Korea; (S.-H.K.); (B.-C.K.); (D.S.); (W.-H.L.); (J.-H.A.)
| | - Daseul Seong
- Department of Otolaryngology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan 44033, Korea; (S.-H.K.); (B.-C.K.); (D.S.); (W.-H.L.); (J.-H.A.)
| | - Won-Hyeok Lee
- Department of Otolaryngology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan 44033, Korea; (S.-H.K.); (B.-C.K.); (D.S.); (W.-H.L.); (J.-H.A.)
| | - Jae-Hee An
- Department of Otolaryngology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan 44033, Korea; (S.-H.K.); (B.-C.K.); (D.S.); (W.-H.L.); (J.-H.A.)
| | - Hyoung-Uk Je
- Department of Radiation Oncology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan 44033, Korea;
| | - Hee-Jeong Cha
- Department of Pathology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan 44033, Korea;
| | - Hyo-Won Chang
- Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; (H.-W.C.); (S.-Y.K.)
| | - Sang-Yoon Kim
- Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; (H.-W.C.); (S.-Y.K.)
| | - Seong-Who Kim
- Department of Biochemistry and Molecular Biology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea
- Correspondence: (S.-W.K.); (M.-W.H.)
| | - Myung-Woul Han
- Department of Otolaryngology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan 44033, Korea; (S.-H.K.); (B.-C.K.); (D.S.); (W.-H.L.); (J.-H.A.)
- Correspondence: (S.-W.K.); (M.-W.H.)
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Dietary isothiocyanates inhibit cancer progression by modulation of epigenome. Semin Cancer Biol 2021; 83:353-376. [PMID: 33434642 DOI: 10.1016/j.semcancer.2020.12.021] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 12/13/2020] [Accepted: 12/27/2020] [Indexed: 12/15/2022]
Abstract
Cell cycle, growth, survival and metabolism are tightly regulated together and failure in cellular regulation leads to carcinogenesis. Several signaling pathways like the PI3K, WNT, MAPK and NFKb pathway exhibit aberrations in cancer and help achieve hallmark capabilities. Clinical research and in vitro studies have highlighted the role of epigenetic alterations in cancer onset and development. Altered gene expression patterns enabled by changes in DNA methylation, histone modifications and RNA processing have proven roles in cancer hallmark acquisition. The reversible nature of epigenetic processes offers robust therapeutic targets. Dietary bioactive compounds offer a vast compendium of effective therapeutic moieties. Isothiocyanates (ITCs) sourced from cruciferous vegetables demonstrate anti-proliferative, pro-apoptotic, anti-inflammatory, anti-migratory and anti-angiogenic effect against several cancers. ITCs also modulate the redox environment, modulate signaling pathways including PI3K, MAPK, WNT, and NFkB. They also modulate the epigenetic machinery by regulating the expression and activity of DNA methyltransferases, histone modifiers and miRNA. This further enhances their transcriptional modulation of key cellular regulators. In this review, we comprehensively assess the impact of ITCs such as sulforaphane, phenethyl isothiocyanate, benzyl isothiocyanate and allyl isothiocyanate on cancer and document their effect on various molecular targets. Overall, this will facilitate consolidation of the current understanding of the anti-cancer and epigenetic modulatory potential of these compounds and recognize the gaps in literature. Further, we discuss avenues of future research to develop these compounds as potential therapeutic entities.
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Kadian LK, Yadav R, Nanda S, Gulshan G, Sharma S, Yadav C. High-risk HPV infection modulates the promoter hypermethylation of APC, SFRP1, and PTEN in cervical cancer patients of North India. Mol Biol Rep 2020; 47:9725-9732. [PMID: 33230782 DOI: 10.1007/s11033-020-05960-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 10/29/2020] [Indexed: 12/18/2022]
Abstract
Persistent infection with oncogenic HPV and downregulation of tumor suppressor genes play an essential role in the development and progression of cervical cancer. The present study aimed to identify the promoter methylation status of APC, SFRP1, and PTEN which are important regulators of Wnt pathway and their association with high-risk HPV infection and gene expression. Methylation Specific PCR (MSP) and quantitative reverse transcription PCR (RT-qPCR) were used to detect methylation status and gene expression levels of APC, SFRP1, and PTEN in cervical cancer biopsies (110) and paired non-cancerous biopsies (28). APC promoter was methylated in 38%, SFRP1 in 95%, and PTEN in 55% of the cervical cancer biopsies. Our data showed a trend of a higher rate of methylation of the gene promoters in cervical cancer biopsies while; they were majorly un-methylated in non-cancerous biopsies. Corresponding to a higher rate of methylation in cancer biopsies, the gene expression levels of APC, SFRP1, and PTEN were reduced in cervical cancer samples in comparison to normal cervix tissues. Further, we observed that 97% cancer biopsies were HPV infected and high-risk type HPV16 and 18 infections were significantly positively associated with APC (p = 0.008 and p = 0.007), SFRP1 (p = 0.003 and p = 0.0067), and PTEN (p = 0.049 and p = 0.008) promoter methylation. APC, SFRP1, and PTEN promoter hyper-methylation is positively associated with high-risk HPV infection and inversely associated with gene expression. Our findings show that high-risk HPV infection promotes methylation of these genes and further promotes their silencing.
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Affiliation(s)
- Lokesh Kumari Kadian
- Department of Genetics, Maharishi Dayanand University, Rohtak, 124001, Haryana, India
| | - Ritu Yadav
- Department of Genetics, Maharishi Dayanand University, Rohtak, 124001, Haryana, India.
| | - Smiti Nanda
- Departments of Obstetrics and Gynaecology, PGIMS, Rohtak, Haryana, India
| | - Gulshan Gulshan
- Department of Biosciences and Bioengineering, IIT Bombay, Mumbai, Maharashtra, India
| | - Shivkant Sharma
- Department of Genetics, Maharishi Dayanand University, Rohtak, 124001, Haryana, India
| | - Chetna Yadav
- Department of Genetics, Maharishi Dayanand University, Rohtak, 124001, Haryana, India
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Adiga D, Eswaran S, Pandey D, Sharan K, Kabekkodu SP. Molecular landscape of recurrent cervical cancer. Crit Rev Oncol Hematol 2020; 157:103178. [PMID: 33279812 DOI: 10.1016/j.critrevonc.2020.103178] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 11/06/2020] [Accepted: 11/11/2020] [Indexed: 02/07/2023] Open
Abstract
Cervical cancer (CC) is a major gynecological problem in developing and underdeveloped countries. Despite the significant advancement in early detection and treatment modalities, several patients recur. Moreover, the molecular mechanisms responsible for CC recurrence remains obscure. The patients with CC recurrence often show poor prognosis and significantly high mortality rates. The clinical management of recurrent CC depends on treatment history, site, and extent of the recurrence. Owing to poor prognosis and limited treatment options, recurrent CC often presents a challenge to the clinicians. Several in vitro, in vivo, and patient studies have led to the identification of the critical molecular changes responsible for CC recurrence. Both aberrant genetic and epigenetic modifications leading to altered cell signaling pathways have been reported to impact CC recurrence. Researchers are currently trying to dissect the molecular pathways in CC and translate these findings for better management of disease. This article attempts to review the existing knowledge of disease relapse, accompanying challenges, and associated molecular players in CC.
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Affiliation(s)
- Divya Adiga
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Sangavi Eswaran
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Deeksha Pandey
- Department of OBGYN, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Krishna Sharan
- Department of Radiotherapy and Oncology, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Shama Prasada Kabekkodu
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.
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Yu A, Zhang J, Mei Y, Zhong H, Chen S, Song Q. Correlation Between Single Nucleotide Polymorphisms of an miRNA Binding Site in the 3'UTR of PTEN and Risk of Cervical Cancer Among the Han Chinese. Genet Test Mol Biomarkers 2020; 24:381-389. [PMID: 32552146 DOI: 10.1089/gtmb.2019.0269] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Objective: To analyze the association between a single nucleotide polymorphism (SNP) in the 3' untranslated region (UTR) of the phosphatase and tensin homolog (PTEN) gene, that is within a microRNA (miRNA) binding site, and the risk of Chinese Han cervical cancer. Methods: A case-control study was carried out to analyze the genotype of the PTEN rs34140758 locus in 210 surgically treated, Han Chinese, cervical cancer patients and 210 healthy controls. The levels of the miRNAs hsa-miR-586 and hsa-miR-622 and the PTEN mRNA were analyzed by real-time reverse transcription-quantitative polymerase chain reaction in the cancerous and adjacent normal tissues from all cases. HeLa cells were transfected with the miRNAs, hsa-miR-586 and hsa-miR-622, to analyze their effects on PTEN gene expression. Results: After adjusting for age, body-mass index, alcohol consumption, smoking, and familial history of cancer, the PTEN rs34140758 A allele carriers were 1.47 times more likely to suffer from cervical cancer than the C allele carriers (odds ratio [OR] = 1.47, 95% confidence interval [CI]: 1.17-1.72, p = 0.001). Both hsa-miR-586 and hsa-miR-622 were highly expressed in the cancerous tissues of the cervical cancer patients, whereas PTEN expression was low. HeLa cell transfection experiments showed that hsa-miR-586 and hsa-miR-622 inhibited PTEN gene expression. The results of a dual-luciferase reporter assay showed that the PTEN gene is a target for both hsa-miR-586 and hsa-miR-622. Conclusion: The PTEN 3'UTR rs34140758 locus SNP is associated with the risk of cervical cancer in the Han Chinese population. The molecular mechanism may be that the rs34140758 SNP affects the regulation of PTEN gene expression through interaction with the hsa-miR-586 and hsa-miR-622 miRNAs.
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Affiliation(s)
- Aijun Yu
- Department of Gynecologic Oncology, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, China
- Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou, China
| | - Jiejie Zhang
- Department of Gynecologic Oncology, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, China
- Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou, China
| | - Yuxian Mei
- Department of Urology, Wenling Hospital of Traditional Chinese Medicine, Wenling, Zhejiang, China
| | - Hai Zhong
- Department of Cardiothoracic Surgery, The Second Hospital of Yinzhou District, Yinzhou District, Ningbo, Zhejiang, P.R. China
| | - Shasha Chen
- Department of Traditional Chinese Medicine and Taizhou Cancer Hospital, Wenling, Zhejiang, China
| | - Qian Song
- Department of Gynecology and Obstetrics, Taizhou Cancer Hospital, Wenling, Zhejiang, China
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Ou L, Lin H, Song Y, Tan G, Gui X, Li J, Chen X, Deng Z, Lin S. Efficient miRNA Inhibitor with GO-PEI Nanosheets for Osteosarcoma Suppression by Targeting PTEN. Int J Nanomedicine 2020; 15:5131-5146. [PMID: 32764941 PMCID: PMC7372002 DOI: 10.2147/ijn.s257084] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 06/24/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Gene therapy is considered a novel way to treat osteosarcoma, and microRNAs are potential therapeutic targets for osteosarcoma. miR-214 has been found to promote osteosarcoma aggression and metastasis. Graphene oxide (GO) is widely used for gene delivery for the distinct physiochemical properties and minimal cytotoxicity. METHODS Polyethyleneimine (PEI)-functionalized GO complex was well-prepared and loaded with miR-214 inhibitor at different concentrations. The load efficacy was tested by gel retardation assay and the cy3-labeled fluorescence of cellular uptake. The experiments of wound healing, immunofluorescence staining, Western blot, qRT-PCR and immunohistochemical staining were performed to measure the inhibitory effect of the miR-214 inhibitor systematically released from the complexes against MG63, U2OS cells and xenograft tumors. RESULTS The systematic mechanistic elucidation of the efficient delivery of the miR-214 inhibitor by GO-PEI indicated that the inhibition of cellular miR-214 caused a decrease in osteosarcoma cell invasion and migration and an increase in apoptosis by targeting phosphatase and tensin homolog (PTEN). The synergistic combination of the GO-PEI-miR-214 inhibitor and CDDP chemotherapy showed significant cell death. In a xenograft mouse model, the GO-PEI-miR-214 inhibitor significantly inhibited tumor volume growth. CONCLUSION This study indicates the potential of functionalized GO-PEI as a vehicle for miRNA inhibitor delivery to treat osteosarcoma with low toxicity and miR-214 can be a good target for osteosarcoma therapy.
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Affiliation(s)
- Lingling Ou
- Department of Stomatology, The First Affiliated Hospital of Jinan University, Guangzhou510632, People’s Republic of China
- Correspondence: Lingling Ou The First Affiliated Hospital of Jinan University, No. 613 West Huangpu Avenue, Guangzhou510632, People’s Republic of China Email
| | - Haiyingjie Lin
- Department of Orthopedics, The Third Affiliated Hospital, Southern Medical University, Guangzhou510630, People’s Republic of China
| | - Yuwei Song
- Department of Stomatology, The First Affiliated Hospital of Jinan University, Guangzhou510632, People’s Republic of China
| | - Guoqiang Tan
- Department of Stomatology, The First Affiliated Hospital of Jinan University, Guangzhou510632, People’s Republic of China
| | - Xiujuan Gui
- Department of Stomatology, The First Affiliated Hospital of Jinan University, Guangzhou510632, People’s Republic of China
| | - Jinyuan Li
- Department of Stomatology, The First Affiliated Hospital of Jinan University, Guangzhou510632, People’s Republic of China
| | - Xiaoting Chen
- Integrated Traditional and Western Medicine Research Center of the First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou510000, People’s Republic of China
| | - Zhendong Deng
- Integrated Traditional and Western Medicine Research Center of the First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou510000, People’s Republic of China
| | - Shaoqiang Lin
- Department of Stomatology, The First Affiliated Hospital of Jinan University, Guangzhou510632, People’s Republic of China
- Integrated Traditional and Western Medicine Research Center of the First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou510000, People’s Republic of China
- Shaoqiang Lin Integrated Traditional and Western Medicine Research Center of the First Affiliated Hospital of Guangdong Pharmaceutical University, No. 19 Nonglinxia Road, Guangzhou510000, People’s Republic of China Email
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Sundaram MK, Unni S, Somvanshi P, Bhardwaj T, Mandal RK, Hussain A, Haque S. Genistein Modulates Signaling Pathways and Targets Several Epigenetic Markers in HeLa Cells. Genes (Basel) 2019; 10:E955. [PMID: 31766427 PMCID: PMC6947182 DOI: 10.3390/genes10120955] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/08/2019] [Accepted: 11/11/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Several epigenetic changes are responsible for transcriptional alterations of signaling pathways and tumour suppressor genes (TSGs) contributing to carcinogenesis. This study was aimed to examine the effect of the phytochemical, genistein on various molecular targets in HeLa cells. METHODS Quantitative PCR was used to analyze the expression of various molecular targets. Biochemical assays were employed to study the epigenetic enzymes. To correlate the transcriptional status of the selected TSGs and epigenetic modulation, their promoter 5'CpG methylation levels were evaluated by quantitative methylation array followed by methylation specific restriction digestion. RESULTS The expression of several genes involved in the cell cycle regulation, migration, inflammation, phosphatidylinositol 3-kinase (PI3K) and mitogen activated kinase-like protein (MAPK) pathway were found to be modulated including CCNB1, TWIST1, MMP14, TERT, AKT1, PTPRR, FOS and IL1A. Genistein modulated the expression of DNA methyltransferases (DNMTs), histone deacetylases (HDACs), histone methyltransferases (HMTs), demethylases, and histone phosphorylases. Furthermore, genistein decreased the activity of DNMTs, HDACs, and HMTs and reduced global DNA methylation levels. Promoter methylation of several TSGs, including FHIT, RUNX3, CDH1, PTEN, and SOC51, was lowered with corresponding transcriptional increase. Network analysis indicated similar effect of genistein. CONCLUSION This study presents a comprehensive mechanism of action of genistein showcasing effective epigenetic modulation and widespread transcriptional changes resulting in restoration of tumour suppressor gene expression. This study corroborates the development of genistein as a candidate for anti-cancer therapy.
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Affiliation(s)
| | - Sreepoorna Unni
- Department of Life and Environmental Sciences, College of Natural and Health Sciences, Zayed University, P.O. Box 19282 Dubai, UAE;
| | - Pallavi Somvanshi
- Department of Biotechnology, TERI School of Advanced Studies, 10, Institutional Area, Vasant Kunj, New Delhi-110070, India; (P.S.); (T.B.)
| | - Tulika Bhardwaj
- Department of Biotechnology, TERI School of Advanced Studies, 10, Institutional Area, Vasant Kunj, New Delhi-110070, India; (P.S.); (T.B.)
| | - Raju K. Mandal
- Research and Scientific Studies Unit, College of Nursing and Allied Health Sciences, Jazan University, Jazan-45142, Saudi Arabia;
| | - Arif Hussain
- School of Life Sciences, Manipal Academy of Higher Education, P.O. Box 345050 Dubai, UAE;
| | - Shafiul Haque
- Research and Scientific Studies Unit, College of Nursing and Allied Health Sciences, Jazan University, Jazan-45142, Saudi Arabia;
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Chang H, Cai Z, Roberts TM. The Mechanisms Underlying PTEN Loss in Human Tumors Suggest Potential Therapeutic Opportunities. Biomolecules 2019; 9:biom9110713. [PMID: 31703360 PMCID: PMC6921025 DOI: 10.3390/biom9110713] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 11/01/2019] [Accepted: 11/04/2019] [Indexed: 12/13/2022] Open
Abstract
In this review, we will first briefly describe the diverse molecular mechanisms associated with PTEN loss of function in cancer. We will then proceed to discuss the molecular mechanisms linking PTEN loss to PI3K activation and demonstrate how these mechanisms suggest possible therapeutic approaches for patients with PTEN-null tumors.
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Affiliation(s)
- Hyeyoun Chang
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; (H.C.); (Z.C.)
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02215, USA
- KIST-DFCI On-Site Lab, Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Zhenying Cai
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; (H.C.); (Z.C.)
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02215, USA
| | - Thomas M. Roberts
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; (H.C.); (Z.C.)
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02215, USA
- Correspondence: ; Tel.: +1-617-632-3049
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15
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PTEN and Gynecological Cancers. Cancers (Basel) 2019; 11:cancers11101458. [PMID: 31569439 PMCID: PMC6826459 DOI: 10.3390/cancers11101458] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 09/16/2019] [Accepted: 09/24/2019] [Indexed: 12/16/2022] Open
Abstract
PTEN is a tumour suppressor gene, and its loss of function is frequently observed in both heritable and sporadic cancers. It is involved in a great variety of biological processes, including maintenance of genomic stability, cell survival, migration, proliferation and metabolism. A better understanding of PTEN activity and regulation has therefore emerged as a subject of primary interest in cancer research. Gynaecological cancers are variously interested by PTEN deregulation and many perspective in terms of additional prognostic information and new therapeutic approaches can be explored. Here, we present the most significant findings on PTEN in gynaecological cancers (ovarian, endometrial, cervical, vulvar and uterine cancer) focusing on PTEN alterations incidence, biological role and clinical implications.
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Dvorská D, Braný D, Nagy B, Grendár M, Poka R, Soltész B, Jagelková M, Zelinová K, Lasabová Z, Zubor P, Danková Z. Aberrant Methylation Status of Tumour Suppressor Genes in Ovarian Cancer Tissue and Paired Plasma Samples. Int J Mol Sci 2019; 20:ijms20174119. [PMID: 31450846 PMCID: PMC6747242 DOI: 10.3390/ijms20174119] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 08/17/2019] [Accepted: 08/19/2019] [Indexed: 02/06/2023] Open
Abstract
Ovarian cancer is a highly heterogeneous disease and its formation is affected by many epidemiological factors. It has typical lack of early signs and symptoms, and almost 70% of ovarian cancers are diagnosed in advanced stages. Robust, early and non-invasive ovarian cancer diagnosis will certainly be beneficial. Herein we analysed the regulatory sequence methylation profiles of the RASSF1, PTEN, CDH1 and PAX1 tumour suppressor genes by pyrosequencing in healthy, benign and malignant ovarian tissues, and corresponding plasma samples. We recorded statistically significant higher methylation levels (p < 0.05) in the CDH1 and PAX1 genes in malignant tissues than in controls (39.06 ± 18.78 versus 24.22 ± 6.93; 13.55 ± 10.65 versus 5.73 ± 2.19). Higher values in the CDH1 gene were also found in plasma samples (22.25 ± 14.13 versus 46.42 ± 20.91). A similar methylation pattern with positive correlation between plasma and benign lesions was noted in the CDH1 gene (r = 0.886, p = 0.019) and malignant lesions in the PAX1 gene (r = 0.771, p < 0.001). The random forest algorithm combining methylation indices of all four genes and age determined 0.932 AUC (area under the receiver operating characteristic (ROC) curve) prediction power in the model classifying malignant lesions and controls. Our study results indicate the effects of methylation changes in ovarian cancer development and suggest that the CDH1 gene is a potential candidate for non-invasive diagnosis of ovarian cancer.
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Affiliation(s)
- Dana Dvorská
- Division of Molecular Medicine, Biomedical Center Martin, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, 036 01 Martin, Slovakia
| | - Dušan Braný
- Division of Molecular Medicine, Biomedical Center Martin, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, 036 01 Martin, Slovakia.
| | - Bálint Nagy
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Marián Grendár
- Bioinformatic Unit, Biomedical Center Martin, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, 036 01 Martin, Slovakia
| | - Robert Poka
- Institute of Obstetrics and Gynecology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Beáta Soltész
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Marianna Jagelková
- Department of Gynaecology and Obstetrics, Martin University Hospital, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, 036 01 Martin, Slovakia
- Division of Oncology, Biomedical Center Martin, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, 036 01 Martin, Slovakia
| | - Katarína Zelinová
- Department of Gynaecology and Obstetrics, Martin University Hospital, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, 036 01 Martin, Slovakia
- Division of Oncology, Biomedical Center Martin, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, 036 01 Martin, Slovakia
| | - Zora Lasabová
- Division of Oncology, Biomedical Center Martin, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, 036 01 Martin, Slovakia
| | - Pavol Zubor
- Department of Gynaecology and Obstetrics, Martin University Hospital, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, 036 01 Martin, Slovakia
| | - Zuzana Danková
- Division of Oncology, Biomedical Center Martin, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, 036 01 Martin, Slovakia
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Ghazanfari T, Asaadi Tehrani G, Maziri P. The Relationship between the Methylation of Promoter Regions of Tumor Suppressor Genes PTEN and APC with Endometrial Cancer. Asian Pac J Cancer Prev 2019; 20:2259-2265. [PMID: 31450893 PMCID: PMC6852804 DOI: 10.31557/apjcp.2019.20.8.2259] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Indexed: 11/25/2022] Open
Abstract
Background: Endometrial neoplasms is one of the most typical gynecologic diseases with harmful effects. Promoter hypermethylation is an important mechanism of the inactivation of tumor suppressor genes in endometrial neoplasms. Epigenetic changes of the PTEN and APC genes have shown to be present in various cancers. Therefore, in this study, we have investigated the association between the promoter hypermethylation of PTEN and APC genes with endometrial neoplasms. Methods: For this study, 28 patients with endometrial neoplasms as well as 22 controls were studied. Analysis of the promoter methylation regions of PTEN and APC genes were performed by Methylation-Specific PCR. Results: The frequency of PTEN and APC genes promoter methylation was 28.57% and 17.86% in tumor tissues, and 11.54% and 3.85% in blood samples, respectively. We found a significant relationship between blood and tissue in PTEN methylation (p = 0.0353). Additionally, we determined a closely significant difference between normal tissue and tumor tissue of the PTEN gene (p = 0.0787) and blood and tissue samples of the APC gene in methylated promoter regions (p=0.0623). Furthermore, these results suggest that there is no significant relationship between the promoter methylation of PTEN and APC with clinical characteristics. Conclusion: DNA methylation deficiency is a well known highlighted factor in tumorigenesis, therefore the promoter hypermethylation of PTEN and APC can be indicated as a risk factor in endometrial neoplasms.
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Affiliation(s)
- Tayebeh Ghazanfari
- Department of Genetics, Faculty of Basic Sciences, Islamic Azad University, Zanjan Branch, Zanjan, Iran.
| | - Golnaz Asaadi Tehrani
- Department of Genetics, Faculty of Basic Sciences, Islamic Azad University, Zanjan Branch, Zanjan, Iran.
| | - Parisa Maziri
- Department of Genetics, Faculty of Basic Sciences, Islamic Azad University, Zanjan Branch, Zanjan, Iran.
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18
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Zhu Y, Liu B, Zhang P, Zhang J, Wang L. LncRNA TUSC8 inhibits the invasion and migration of cervical cancer cells via miR‐641/PTEN axis. Cell Biol Int 2019; 43:781-788. [PMID: 31033083 DOI: 10.1002/cbin.11152] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 04/07/2019] [Accepted: 04/24/2019] [Indexed: 12/18/2022]
Affiliation(s)
- Yanling Zhu
- Department of Gynecology Oncology, Xuzhou Cancer HospitalXuzhou Hospital Affiliated to Jiangsu UniversityXuzhou 221000 Jiangsu China
| | - Beibei Liu
- Department of Gynecology Oncology, Xuzhou Cancer HospitalXuzhou Hospital Affiliated to Jiangsu UniversityXuzhou 221000 Jiangsu China
| | - Ping Zhang
- Department of Gynecology Oncology, Xuzhou Cancer HospitalXuzhou Hospital Affiliated to Jiangsu UniversityXuzhou 221000 Jiangsu China
| | - Jie Zhang
- Department of Gynecology Oncology, Xuzhou Cancer HospitalXuzhou Hospital Affiliated to Jiangsu UniversityXuzhou 221000 Jiangsu China
| | - Lan Wang
- Department of Gynecology Oncology, Xuzhou Cancer HospitalXuzhou Hospital Affiliated to Jiangsu UniversityXuzhou 221000 Jiangsu China
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Clinicopathologic Aspects of Squamous Cell Carcinoma of the Uterine Cervix: Role of PTEN, BCL2 and P53. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8112124] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Background: Squamous cell carcinoma (SCC) of the uterine cervix is a leading cause of morbidity and mortality among women. The alterations of Phosphatase and tensin homolog (PTEN), B-cell lymphoma 2 (Bcl2) and p53 expression seem to be significant in the development of various types of cancers. The altered expressions of PTEN, Bcl2 and p53 and their involvement in cancer of the uterine cervix are not well recognized. Aim: This study aimed at examining the expression patterns of PTEN, Bcl2 and p53 proteins and comparing them with the grade and stage of cervical cancer. Materials and Methods: Tissue blocks of SCC and ten cases of inflammatory lesions of the uterine cervix were examined immunohistochemically for the expression of PTEN, Bcl2 and p53 proteins. Results: Loss of PTEN expression was identified in 45.33% of cervical SCC and no expression was found in inflammatory lesions (p ≤ 0.05). PTEN expression was significantly associated with the clinical stage of SCC (61.36% and 45.16% in stages I–II and III–IV, respectively) (p < 0.05), but not with the degree of differentiation of the SCC. The expression of Bcl2 was significantly high (60%) in cancer cases than in control cases (p < 0.05). Bcl2 did not show any significant association with the histologic type and clinical stage of the SCC of the uterine cervix. The expression of p53 protein was significantly high (57.33%)) in cancer tissue, and no expression was noted in control cases (p < 0.05). Moreover, the expression pattern of p53 protein in cervical cancer tissue samples was not linked with the patient age, grade and stage of the cervical SCC (p > 0.05). Conclusion: The reduced expression of PETN and overexpressions of Bcl2 and p53 might play an indispensable role in carcinogenesis of cervical SCC. Moreover, a relationship was detected between PTEN expression and clinical stage of the cervical SCC.
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Zhang H, Liu J, Li G, Wei J, Chen H, Zhang C, Zhao J, Wang Y, Dang S, Li X, Fang X, Liu L, Liu M. Fresh red raspberry phytochemicals suppress the growth of hepatocellular carcinoma cells by PTEN/AKT pathway. Int J Biochem Cell Biol 2018; 104:55-65. [PMID: 30195065 DOI: 10.1016/j.biocel.2018.09.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 08/17/2018] [Accepted: 09/04/2018] [Indexed: 12/24/2022]
Abstract
The red raspberry (Rubus idaeus L.) is a common fruit worldwide and its extract has been found to inhibit the growth of many types of tumors, mainly because it is rich in bioactive phytochemicals. However, the mechanism underlying its anticancer activity in hepatocellular carcinoma (HCC) is not well understood. Herein, the aim of this study was to determine the effects of red raspberry phytochemicals on the proliferation of hepatocellular carcinoma cells and to elucidate its biochemical and molecular targets. CCK8 and colony formation, as well as flow cytometry assays, were employed to determine the effects of red raspberry extract (RRE) on cell proliferation and cell cycle distribution in HCC cells. Our results showed that RRE significantly inhibited cell proliferation and arrested cell cycle progression at the S phase in HCC cells. RRE increased the expression of phosphatase and tensin homologue deleted on chromosome 10 (PTEN) by reducing the methylation status of the PTEN gene promoter and inhibiting DNMT1 expression and regulated AKT signaling pathway. These findings show that red raspberry phytochemicals inhibit the proliferation of HCC cells by regulating PTEN/AKT signaling pathway, providing evidence that RRE may be used as a potential auxiliary therapy for patients with HCC.
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Affiliation(s)
- Haopeng Zhang
- Department of General Surgery & Bio-Bank of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Jiaren Liu
- Department of Clinical Laboratory, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Guodong Li
- Department of General Surgery & Bio-Bank of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Jiufeng Wei
- Department of General Surgery & Bio-Bank of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Hongsheng Chen
- Department of General Surgery & Bio-Bank of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Chunpeng Zhang
- Department of General Surgery & Bio-Bank of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Jinlu Zhao
- Department of General Surgery & Bio-Bank of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Yunfeng Wang
- Department of General Surgery & Bio-Bank of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Shuwei Dang
- Department of General Surgery & Bio-Bank of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Xinglong Li
- Department of General Surgery & Bio-Bank of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Xuan Fang
- Department of General Surgery & Bio-Bank of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Lianxin Liu
- Department of Hepatic Surgery, The First Affiliated Hospital of Harbin Medical University & Key Laboratory of Hepatosplenic Surgery Ministry of Education, Harbin, 150001, China
| | - Ming Liu
- Department of General Surgery & Bio-Bank of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China.
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Li ZH, Li L, Kang LP, Wang Y. Retracted: MicroRNA-92a promotes tumor growth and suppresses immune function through activation of MAPK/ERK signaling pathway by inhibiting PTEN in mice bearing U14 cervical cancer. Cancer Med 2018; 7:3118-3131. [PMID: 29752775 PMCID: PMC6051186 DOI: 10.1002/cam4.1329] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 12/07/2017] [Accepted: 12/14/2017] [Indexed: 12/13/2022] Open
Abstract
Cervical cancer is known as the possible outcome of genital infection, while the molecular mechanisms of initiation, development, and metastasis of cervical cancer have not yet been fully elucidated. Our study aims to investigate the effects of microRNA-92a (miR-92a) on tumor growth and immune function by targeting PTEN via the MAPK/ERK signaling pathway in tumor-bearing mice. C57BL/6 female mice were used for tumor-bearing mouse models and their tumor and adjacent normal tissues were collected, and normal cervical tissues were obtained from normal mice. Serum levels of tumor necrosis factor-α (TNF-α) and soluble interleukin-2 receptor (sIL-2R) were detected by ELISA. The cells were divided into the normal, blank, negative control (NC), miR-92a mimic, miR-92a inhibitor, siRNA-PTEN, and miR-92a inhibitor + siRNA-PTEN groups. Dual-luciferase reporter assay was adopted to determine the relationship between PTEN and miR-92a. Expressions of miR-92a, PTEN, TNF-α, sIL-2R, ERK1, and ERK2 were tested by RT-qPCR and Western blotting. Cell proliferation was detected by cell count kit-8 (CCK-8); cell cycle and apoptosis were detected by flow cytometry. Compared with the normal cervical tissues and adjacent normal tissues, the cervical cancer tissues exhibited increased expressions of miR-92a, p-ERK1/2, and serum levels of TNF-α and sIL-2R while decreased PTEN expression. PTEN was confirmed to be the target gene of miR-92a. As compared with the blank and NC groups, expressions of miR-92a, ERK1 and ERK2 increased, and expressions of PTEN decreased in the miR-92a mimic group. The miR-92a mimic group exhibited increased expression levels of TNF-α and sIL-2R, cell proliferation, and cell number in S phase but decreased cell apoptosis, and cell number in G0/G1 phase, while the miR-92a inhibitor group followed opposite trends. miR-92a promotes tumor growth and suppresses immune function by inhibiting PTEN via activation of the MAPK/ERK signaling pathway in mice bearing U14 cervical cancer.
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Affiliation(s)
- Zeng-Hui Li
- Department of Obstetrics and Gynecology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, China
| | - Lei Li
- Department of Obstetrics and Gynecology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, China
| | - Lin-Ping Kang
- Department of Obstetrics and Gynecology, Qingdao Municipal Hospital, Qingdao, 266071, China
| | - Yan Wang
- Department of Obstetrics, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, P.R., China
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Zhang J, Chen D, Liang S, Wang J, Liu C, Nie C, Shan Z, Wang L, Fan Q, Wang F. miR-106b promotes cell invasion and metastasis via PTEN mediated EMT in ESCC. Oncol Lett 2018; 15:4619-4626. [PMID: 29552108 DOI: 10.3892/ol.2018.7861] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 11/22/2017] [Indexed: 02/06/2023] Open
Abstract
MicroRNA (miR)-106b serves an essential function in a variety of human cancer types, particularly in the process of invasion and metastasis. However, the function and mechanism of miR-106b in the invasion and metastasis of esophageal squamous cell carcinoma (ESCC) has remained elusive. In the present study, it was demonstrated that miR-106b was upregulated in ESCC tissues and cell lines. Furthermore, miR-106b expression in ESCC tissues was positively associated with lymphatic metastasis. Inhibition of miR-106b in EC-1 and EC9706 cells decreased not only the invasion and metastasis ability but also the proliferation ability of EC-1 and EC9706 cells. In addition, miR-106b had the ability to induce epithelial-to-mesenchymal transition (EMT) in EC-1 and EC9706 cells. In terms of the underlying mechanism, it was revealed that miR-106b promoted the invasion, metastasis and proliferation ability of EC-1 and EC9706 cells by directly targeting phosphatase and tension homolog (PTEN). Furthermore, miR-106b induced EMT in EC-1 and EC9706 cells by suppressing the expression of PTEN. In summary, the present study revealed that miR-106b contributed to invasion and metastasis in ESCC by regulating PTEN mediated EMT. Downregulation of miR-106b may be a novel strategy for preventing tumor invasion and metastasis.
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Affiliation(s)
- Jianxiang Zhang
- Department of General Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Danjie Chen
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Shuying Liang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Jun Wang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Can Liu
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Caiping Nie
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Zhengzheng Shan
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Liuxing Wang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Qinxia Fan
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Feng Wang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
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Cardoso MDFS, Castelletti CHM, Lima-Filho JLD, Martins DBG, Teixeira JAC. Putative biomarkers for cervical cancer: SNVs, methylation and expression profiles. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2017; 773:161-173. [PMID: 28927526 DOI: 10.1016/j.mrrev.2017.06.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 06/28/2017] [Accepted: 06/29/2017] [Indexed: 02/08/2023]
Abstract
Cervical cancer is primarily caused by Human papillomavirus (HPV) infection, but other factors such as smoking habits, co-infections and genetic background, can also contribute to its development. Although this cancer is avoidable, it is the fourth most frequent type of cancer in females worldwide and can only be treated with chemotherapy and radical surgery. There is a need for biomarkers that will enable early diagnosis and targeted therapy for this type of cancer. Therefore, a systems biology pipeline was applied in order to identify potential biomarkers for cervical cancer, which show significant reports in three molecular aspects: DNA sequence variants, DNA methylation pattern and alterations in mRNA/protein expression levels. CDH1, CDKN2A, RB1 and TP53 genes were selected as putative biomarkers, being involved in metastasis, cell cycle regulation and tumour suppression. Other ten genes (CDH13, FHIT, PTEN, MLH1, TP73, CDKN1A, CACNA2D2, TERT, WIF1, APC) seemed to play a role in cervical cancer, but the lack of studies prevented their inclusion as possible biomarkers. Our results highlight the importance of these genes. However, further studies should be performed to elucidate the impact of DNA sequence variants and/or epigenetic deregulation and altered expression of these genes in cervical carcinogenesis and their potential as biomarkers for cervical cancer diagnosis and prognosis.
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Affiliation(s)
- Maria de Fátima Senra Cardoso
- Molecular Prospection and Bioinformatics Group (ProspecMol), Laboratory of Immunopathology Keizo Asami (LIKA), Federal University of Pernambuco (UFPE), Av. Prof. Moraes Rego s/n, Recife - PE, 50670-901, Brazil.
| | - Carlos Henrique Madeiros Castelletti
- Molecular Prospection and Bioinformatics Group (ProspecMol), Laboratory of Immunopathology Keizo Asami (LIKA), Federal University of Pernambuco (UFPE), Av. Prof. Moraes Rego s/n, Recife - PE, 50670-901, Brazil; Agronomic Institute of Pernambuco (IPA), Av. General San Martin 1371, Bongi, Recife - PE, 50761-000, Brazil
| | - José Luiz de Lima-Filho
- Laboratory of Immunopathology Keizo Asami (LIKA), Federal University of Pernambuco (UFPE), Av. Prof. Moraes Rego s/n, Recife - PE, 50670-901, Brazil; Biochemistry Department, Federal University of Pernambuco (UFPE), Av. Prof. Moraes Rego s/n, Recife - PE, 50670-901, Brazil
| | - Danyelly Bruneska Gondim Martins
- Molecular Prospection and Bioinformatics Group (ProspecMol), Laboratory of Immunopathology Keizo Asami (LIKA), Federal University of Pernambuco (UFPE), Av. Prof. Moraes Rego s/n, Recife - PE, 50670-901, Brazil; Biochemistry Department, Federal University of Pernambuco (UFPE), Av. Prof. Moraes Rego s/n, Recife - PE, 50670-901, Brazil
| | - José António Couto Teixeira
- Laboratory of Immunopathology Keizo Asami (LIKA), Federal University of Pernambuco (UFPE), Av. Prof. Moraes Rego s/n, Recife - PE, 50670-901, Brazil; Department of Biological Engineering, University of Minho (UM), Campus de Gualtar, 4710-057 Braga, Portugal
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24
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Du G, Cao D, Meng L. miR-21 inhibitor suppresses cell proliferation and colony formation through regulating the PTEN/AKT pathway and improves paclitaxel sensitivity in cervical cancer cells. Mol Med Rep 2017; 15:2713-2719. [PMID: 28447761 DOI: 10.3892/mmr.2017.6340] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 11/18/2016] [Indexed: 11/06/2022] Open
Abstract
The present study aimed to investigate the role and the molecular mechanisms underlying the effects of microRNA-21 (miR-21) on the proliferation, apoptosis and colony formation of cervical cancer cells, and to examine the role of miR-21 in mediating the sensitivity of cervical cancer cells to paclitaxel (PTX). Reverse transcription‑quantitative polymerase chain reaction was employed to determine the level of miR‑21 in various cervical cancer and normal cervical cells. The results revealed that the expression levels of miR-21 in cervical cancer cells were markedly higher when compared with normal cervical cells. Subsequently, a miR‑21 inhibitor or negative control (NC) was transfected into cervical cancer cells. Cell viability, colony formation and apoptosis were then analyzed using an MTT assay, crystal violet and Annexin V-fluorescein isothiocyanate/propidium iodide staining, respectively. The protein expression level of B-cell lymphoma‑2 (Bcl‑2), Bcl‑2‑associated X (Bax), programmed cell death 4 (PDCD4), survivin, c‑myc, phosphatase and tensin homolog (PTEN) and phosphorylated (p)‑AKT were determined by western blot analysis. The sensitivity of cervical cancer cells to PTX (25, 50 and 100 µg/ml) was characterized using an MTT assay. The results demonstrated that the miR-21 inhibitor promoted apoptosis of cervical cancer cells and suppressed their proliferation and colony formation when compared with the NC. In addition, the expression levels of Bcl‑2, survivin, c‑myc and p‑AKT were significantly downregulated in cells transfected with the miR‑21 inhibitor, whilst the expression levels of Bax, PDCD4 and PTEN were significantly upregulated. Furthermore, the miR‑21 inhibitor significantly enhanced the inhibition efficacy of PTX at a range of concentrations in cervical cancer cells. It was concluded that inhibition of miR‑21 suppressed cell proliferation and colony formation through regulating the PTEN/AKT pathway, and improved PTX sensitivity in cervical cancer cells. The results of the present study may contribute to the development of miRNA‑based cervical cancer therapy in the future.
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Affiliation(s)
- Guohui Du
- Department of Pharmacy, Tangshan Maternity and Child Health Care Hospital, Tangshan, Hebei 063000, P.R. China
| | - Dongmei Cao
- Department of Pharmacy, Tangshan Maternity and Child Health Care Hospital, Tangshan, Hebei 063000, P.R. China
| | - Lingzheng Meng
- Department of Pharmacy, Tangshan Maternity and Child Health Care Hospital, Tangshan, Hebei 063000, P.R. China
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25
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Luo S, Chen J, Mo X. The association of PTEN hypermethylation and breast cancer: a meta-analysis. Onco Targets Ther 2016; 9:5643-50. [PMID: 27672335 PMCID: PMC5026181 DOI: 10.2147/ott.s111684] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
OBJECTIVE Phosphatase and tensin homolog (PTEN) deleted on chromosome 10, as a tumor suppressor gene, is crucial for the development of both familial and sporadic breast cancer (BC). The aim of this study was to perform a meta-analysis to evaluate the clinicopathological significance of PTEN promoter hypermethylation in BC. METHODS A comprehensive literature search was made in PubMed, Embase, Google Scholar, Chinese database (China National Knowledge Infrastructure [CNKI]), and Web of Science. The analysis of pooled data was performed with Review Manager 5.2. The fixed-effects or random-effects models were used to evaluate odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS The meta-analysis included eight studies and a total of 923 patients. The frequency of PTEN promoter hypermethylation was significantly increased in ductal carcinoma in situ (DCIS) and invasive ductal carcinoma (IDC) compared to normal breast tissues (OR =22.53, P=0.0002 and OR =22.86, P<0.00001, respectively). However, the frequency of PTEN promoter hypermethylation was similar between IDC and DCIS. Additionally, PTEN methylation was not significantly correlated to estrogen receptor (ER) or human epidermal growth factor type 2 (HER-2) status in patients with BC. CONCLUSION PTEN promoter hypermethylation is significantly associated with the risk of DCIS and IDC, suggesting PTEN promoter hypermethylation is a valuable biomarker for diagnosis of BC.
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Affiliation(s)
- Shanshan Luo
- Department of Gastrointestinal Surgery, Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Jiansi Chen
- Department of Gastrointestinal Surgery, Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Xianwei Mo
- Department of Gastrointestinal Surgery, Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, People's Republic of China
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26
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Bhat S, Kabekkodu SP, Noronha A, Satyamoorthy K. Biological implications and therapeutic significance of DNA methylation regulated genes in cervical cancer. Biochimie 2015; 121:298-311. [PMID: 26743075 DOI: 10.1016/j.biochi.2015.12.018] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 12/28/2015] [Indexed: 12/12/2022]
Abstract
Cervical cancer is the second most common cancer among women worldwide. About 528,000 women are diagnosed with cervical cancer contributing to around 266,000 deaths, across the globe every year. Out of these, the burden of 226,000 (85%) deaths occurs in the developing countries, who are less resource intensive to manage the disease. This is despite the fact that cervical cancer is amenable for early detection due to its long and relatively well-known natural history prior to its culmination as invasive disease. Infection with high risk human papillomavirus (hrHPVs) is essential but not sufficient to cause cervical cancer. Although it was thought that genetic mutations alone was sufficient to cause cervical cancer, the current epidemiological and molecular studies have shown that HPV infection along with genetic and epigenetic changes are frequently associated and essential for initiation, development and progression of the disease. Moreover, aberrant DNA methylation in host and HPV genome can be utilized not only as biomarkers for early detection, disease progression, diagnosis and prognosis of cervical cancer but also to design effective therapeutic strategies. In this review, we focus on recent studies on DNA methylation changes in cervical cancer and their potential role as biomarkers for early diagnosis, prognosis and targeted therapy.
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Affiliation(s)
- Samatha Bhat
- Department of Biotechnology, School of Life Sciences, Manipal University, Karnataka 576104, India
| | - Shama Prasada Kabekkodu
- Department of Biotechnology, School of Life Sciences, Manipal University, Karnataka 576104, India
| | - Ashish Noronha
- Department of Biotechnology, School of Life Sciences, Manipal University, Karnataka 576104, India
| | - Kapaettu Satyamoorthy
- Department of Biotechnology, School of Life Sciences, Manipal University, Karnataka 576104, India.
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27
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Yang YK, Xi WY, Xi RX, Li JY, Li Q, Gao YE. MicroRNA-494 promotes cervical cancer proliferation through the regulation of PTEN. Oncol Rep 2015; 33:2393-401. [PMID: 25738254 DOI: 10.3892/or.2015.3821] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 02/02/2015] [Indexed: 01/11/2023] Open
Abstract
The phosphoinositide 3-kinase (PI3K)/Akt signaling pathway appears to be a key regulator in cervical carcinogenesis. The phosphatase and tensin homolog deleted on chromosome 10 (PTEN) protein is principally involved in the homeostatic maintenance of PI3K/Akt signaling and PTEN has been identified to play an important role in the occurrence and development of cervical cancer. MicroRNA (miRNA)-494 has been proven to be involved in the carcinogenesis and development of various types of cancer by directly targeting PTEN. However the role, mechanism and clinical significance of miR-494 in cervical cancer have not been further reported. In the present study, we analyzed the expression of miR-494 in -with PTEN expression and clinicopathological data of cervical cancer patients. The results showed that miR-494 expression was significantly upregulated in human cervical cancer cell lines and tissues. miR-494 upregulation was significantly associated with PTEN downregulation, adverse clinicopathological characteristics, poor overall and progression-free survival and poor prognosis. In vitro experiments showed that inhibition of miR-494 suppressed cell proliferation and growth by directly targeting the 3'-untranslated region (3'-UTR) of PTEN mRNA. These findings identified a novel molecular mechanism involved in the regulation of PTEN expression and cervical cancer progression. Results of the present study indicated that miR-494 may have an essential role in the carcinogenesis and progression of cervical cancer and targeting miR-494 may be a promising therapeutic strategy for the treatment of cervical cancer.
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Affiliation(s)
- Yong-Kang Yang
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Wen-Yan Xi
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Ru-Xing Xi
- Department of Radiotherapy, The First Affiliated Hospital of Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Jing-Yuan Li
- Department of Orthopedics, The Second Affiliated Hospital of Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Qin Li
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, Shaanxi 712000, P.R. China
| | - Yan-E Gao
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
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28
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Angiogenin interacts with ribonuclease inhibitor regulating PI3K/AKT/mTOR signaling pathway in bladder cancer cells. Cell Signal 2014; 26:2782-92. [PMID: 25193113 DOI: 10.1016/j.cellsig.2014.08.021] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Accepted: 08/17/2014] [Indexed: 11/22/2022]
Abstract
Angiogenin (ANG), a member of RNase A superfamily, is the only angiogenic factor that possesses ribonucleolytic activity. Recent studies showed that the expression of ANG was elevated in various types of cancers. Accumulating evidence indicates that ANG plays an essential role in cancer progression by stimulating both cancer cell proliferation and tumor angiogenesis. Human ribonuclease inhibitor (RI), a cytoplasmic protein, is constructed almost entirely of leucine rich repeats (LRRs), which are present in a large family of proteins that are distinguished by their display of vast surface areas to foster protein-protein interactions. RI might be involved in unknown biological effects except inhibiting RNase A activity. The experiment demonstrated that RI also could suppress activity of angiogenin (ANG) through closely combining with it in vitro. PI3K/AKT/mTOR signaling pathway exerts a key role in cell growth, survival, proliferation, apoptosis and angiogenesis. We recently reported that up-regulating RI inhibited the growth and induced apoptosis of murine melanoma cells through repression of angiogenin and PI3K/AKT signaling pathway. However, ANG receptors have not yet been identified to date, its related signal transduction pathways are not fully clear and underlying interacting mechanisms between RI and ANG remain largely unknown. Therefore, we hypothesize that RI might combine with intracellular ANG to block its nuclear translocation and regulate PI3K/AKT/mTOR signaling pathway to inhibit biological functions of ANG. Here, we reported for the first time that ANG could interact with RI endogenously and exogenously by using co-immunoprecipitation (Co-IP) and GST pull-down. Furthermore, we observed the colocalization of ANG and RI in cells with immunofluorescence staining under laser confocal microscope. Moreover, through fluorescence resonance energy transfer (FRET) assay, we further confirmed that these two proteins have a physical interaction in living cells. Subsequently, we demonstrated that up-regulating ANG including ANG His37Ala mutant obviously decreased RI expression and activated phosphorylation of key downstream target molecules of PI3K/AKT/mTOR signaling pathway. Finally, up-regulating ANG led to the promotion of tumor angiogenesis, tumorigenesis and metastasis in vivo. Taken together, our data provided a novel mechanism of ANG in regulating PI3K/AKT/mTOR signaling pathway via RI, which suggested a new therapeutic target for cancer therapy.
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