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Morais de Castro E, Barbosa LV, Fonseca AS, Nagashima S, Vaz de Paula CB, Zeni R, Cavalli LR, Torres LFB, de Noronha L, Machado-Souza C. Pediatric Astrocytomas and Their Association With Polymorphisms in Embryonic Stem Cell Marker Genes. J Child Neurol 2022; 37:534-540. [PMID: 35450457 DOI: 10.1177/08830738221091043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Embryonic stem cell markers, such as SOX2, NANOG, and OCT4, are transcription factors expressed in pluripotent stem cells, involved in the mediation of pluripotency and self-renewal. Especially after the discovery of cancer stem cells, these proteins have been associated with several types of neoplasia, including astrocytomas. In the pediatric population, astrocytomas are the most common solid neoplasia and present the highest mortality rates. METHODS Our study evaluated 5 polymorphisms in SOX2, NANOG, and POU5F1 genes in 101 pediatric astrocytoma samples. RESULTS We describe the associations between wild and polymorphic alleles in astrocytomas. CONCLUSIONS In our results, the intronic polymorphic G allele in SOX2 rs77677339 [G/A] had a borderline association with low-grade astrocytomas, and the intronic polymorphic T allele in NANOG rs10845877 [C/T] showed a higher frequency in grade 2, compared to grade 1 astrocytomas, thus showing promising results. IMPACT Our study is relevant because it shows a potential correlation between polymorphic embryonic stem cell marker genes and pediatric astrocytomas.
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Affiliation(s)
- Eduardo Morais de Castro
- Postgraduation Program in Biotechnology Applied in Health of Children and Adolescent of Faculdades Pequeno Príncipe, 245143Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba, Paraná, Brazil
| | - Leonardo Vinícius Barbosa
- Postgraduation Program in Biotechnology Applied in Health of Children and Adolescent of Faculdades Pequeno Príncipe, 245143Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba, Paraná, Brazil
| | - Aline Simoneti Fonseca
- Postgraduation Program in Biotechnology Applied in Health of Children and Adolescent of Faculdades Pequeno Príncipe, 245143Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba, Paraná, Brazil
| | - Seigo Nagashima
- Postgraduation Program in Health Sciences of School of Medicine, 28100Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, Brazil
| | - Caroline Busatta Vaz de Paula
- Postgraduation Program in Health Sciences of School of Medicine, 28100Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, Brazil
| | - Rafaela Zeni
- 230939Universidade Federal do Paraná, Curitiba, Paraná, Brazil
| | - Luciane R Cavalli
- Postgraduation Program in Biotechnology Applied in Health of Children and Adolescent of Faculdades Pequeno Príncipe, 245143Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba, Paraná, Brazil
| | | | - Lucia de Noronha
- Postgraduation Program in Health Sciences of School of Medicine, 28100Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, Brazil
| | - Cleber Machado-Souza
- Postgraduation Program in Biotechnology Applied in Health of Children and Adolescent of Faculdades Pequeno Príncipe, 245143Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba, Paraná, Brazil
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Yeh CM, Lin CW, Lu HJ, Chuang CY, Chou CH, Yang SF, Chen MK. Impact of SRY-Box Transcription Factor 11 Gene Polymorphisms on Oral Cancer Risk and Clinicopathologic Characteristics. Int J Mol Sci 2020; 21:ijms21124468. [PMID: 32586027 PMCID: PMC7352504 DOI: 10.3390/ijms21124468] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 06/22/2020] [Accepted: 06/22/2020] [Indexed: 12/12/2022] Open
Abstract
Oral cancer is among the most common cancers worldwide and has become a major global health problem because of its relatively high morbidity and mortality rates. The sex-determining region on the Y-chromosome-related high-mobility-group box (SOX) transcription factor 11 (SOX11) plays a key role in human development and differentiation and is frequently increased in various human cancers. However, the clinical significance of SOX11 polymorphisms in oral cancer and their association with oral cancer risk are unclear. In this study, we included 1196 patients with oral cancer and 1200 controls. Real-time polymerase chain reaction was applied to analyze three SOX11 single-nucleotide polymorphisms (rs77996007, rs66465560, and rs68114586). Our results shown that SOX11 polymorphisms carriers with betel quid chewing were found to have an 8.38- to 9.23-fold risk to have oral cancer compared to SOX11 wild-type carriers without betel quid chewing. Furthermore, oral cancer patients who carried SOX11 rs77996007 “TC + CC” variants were significantly associated with large tumor size (AOR, 1.324; 95% CI, 1.047–1.674; p = 0.019). Moreover, a database analysis using the Cancer Genome Atlas suggested that SOX11 mRNA expression was high during the tumor development process. In conclusion, our results suggest that SOX11 rs77996007 is involved in oral cancer progression and clinical characteristics.
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Affiliation(s)
- Chia-Ming Yeh
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; (C.-M.Y.); (C.-H.C.)
- Cancer Research Center, Changhua Christian Hospital, Changhua 500, Taiwan
- Department of Otorhinolaryngology-Head and Neck Surgery, Changhua Christian Hospital, Changhua 500, Taiwan
| | - Chiao-Wen Lin
- Institute of Oral Sciences, Chung Shan Medical University, Taichung 402, Taiwan;
- Department of Dentistry, Chung Shan Medical University Hospital, Taichung 402, Taiwan
| | - Hsueh-Ju Lu
- Division of Medical Oncology, Department of Internal Medicine, Chung Shan Medical University Hospital, Taichung 402, Taiwan;
- School of Medicine, Chung Shan Medical University, Taichung 402, Taiwan;
| | - Chun-Yi Chuang
- School of Medicine, Chung Shan Medical University, Taichung 402, Taiwan;
- Department of Otolaryngology, Chung Shan Medical University Hospital, Taichung 402, Taiwan
| | - Chia-Hsuan Chou
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; (C.-M.Y.); (C.-H.C.)
| | - Shun-Fa Yang
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; (C.-M.Y.); (C.-H.C.)
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung 402, Taiwan
- Correspondence: (S.-F.Y.); (M.-K.C.)
| | - Mu-Kuan Chen
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; (C.-M.Y.); (C.-H.C.)
- Cancer Research Center, Changhua Christian Hospital, Changhua 500, Taiwan
- Department of Otorhinolaryngology-Head and Neck Surgery, Changhua Christian Hospital, Changhua 500, Taiwan
- Correspondence: (S.-F.Y.); (M.-K.C.)
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3
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Youn HJ, Han W. A Review of the Epidemiology of Breast Cancer in Asia: Focus on Risk Factors. Asian Pac J Cancer Prev 2020; 21:867-880. [PMID: 32334446 PMCID: PMC7445974 DOI: 10.31557/apjcp.2020.21.4.867] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Indexed: 01/11/2023] Open
Abstract
Background and Aim: Breast cancer is the most prevalent cancer in women. To date, regional differences in breast cancer risk factors have not been identified. The aim of our review was to gain a better understanding of the role of risk factors in women with breast cancer in Asia. Methods: We conducted a PubMed search on 15 March 2016, for journal articles published in English between 2011 and 2016, which reported data for human subjects in Asia with a diagnosis of breast cancer. Search terms included breast neoplasm, epidemiology, Asia, prevalence, incidence, risk and cost of illness. Studies of any design were included, except for review articles and meta-analyses, which were excluded to avoid duplication of data. No exclusions were made based on breast cancer treatment. We reported the results using the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines. Results: A total of 776 abstracts were retrieved. After screening against the eligibility criteria, 562 abstracts were excluded. The remaining 214 abstracts, which were published between 2013 and 2015, were included in this review. Results were summarized and reported under three categories: incidence, prevalence or outcomes for breast cancer in Asia; modifiable risk factors; and non-modifiable risk factors. We found that the increased risk of breast cancer among participants from Asia was associated with older age, family history of breast cancer, early menarche, late menopause, high body mass index, being obese or overweight, exposure to tobacco smoke, and high dietary intake of fats or fatty foods. In contrast, intake of dietary fruits, vegetables, and plant- and soy-based products was associated with a decreased breast cancer risk. While based on limited data, when compared to women from the United States, women from Asia had a decreased risk of breast cancer. Conclusions: This review of 214 abstracts of studies in Asia, published between 2013 and 2015, confirmed the relevance of known non-modifiable and modifiable risk factors for women with breast cancer.
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Affiliation(s)
- Hyun Jo Youn
- Department of Surgery, Research Institute of Clinical Medicine, Chonbuk National University and Biomedical Research Institute, Chonbuk National University Hospital, Republic of Korea
| | - Wonshik Han
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul National University Cancer Hospital, Republic of Korea
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Avazpour N, Hajjari M, Kazemi Nezhad SR, Tahmasebi Birgani M. SNHG1 Long Noncoding RNA is Potentially Up-Regulated in Colorectal Adenocarcinoma. Asian Pac J Cancer Prev 2020; 21:897-901. [PMID: 32334448 DOI: 10.31557/apjcp.2020.21.4.897] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Indexed: 01/13/2023] Open
Abstract
Colorectal cancer (CRC) is one of the most common types of cancer worldwide. However, the molecular mechanisms involved in CRC initiation and progression is remained to be unknown. It seems that lncRNAs, as the main and lengthy functional transcripts of the genome, have important roles in different cancers such as CRC. CRC-related lncRNAs are reported to be involved in diverse molecular processes such as metastasis, invasion, cell proliferation, and apoptosis. This study was aimed to analyse the expression level of lncRNA SNHG1 in colorectal adenocarcinoma and normal tissues. We performed an in silico analysis on a large cohort and confirmed the results by experimental analysis of clinical samples through real-time PCR. Our findings demonstrated that that SNHG1 is potentially overexpressed in tumor tissues compared with adjacent normal tissues. The expression level of SNHG1 was shown to be potentially associated with clinicopathological features of tumors. The current study suggests the potential role of SNHG1 in colon cancer progression.
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Affiliation(s)
- Niloofar Avazpour
- Department of Genetics, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Mohamadreza Hajjari
- Department of Genetics, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | | | - Maryam Tahmasebi Birgani
- Department of Medical Genetics, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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5
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Vaidya M, Sugaya K. Differential sequences and single nucleotide polymorphism of exosomal SOX2 DNA in cancer. PLoS One 2020; 15:e0229309. [PMID: 32092088 PMCID: PMC7039433 DOI: 10.1371/journal.pone.0229309] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 02/03/2020] [Indexed: 12/12/2022] Open
Abstract
Glioblastoma multiforme (GBM) is the most common form of brain cancer, with an average life expectancy of fewer than two years post-diagnosis. We have previously reported that cancer cell originated exosomes, including GBM, have NANOG and NANOGP8 DNA associated with them. The exosomal NANOG DNA has certain differences as compared to its normal counterpart that are of immense importance as a potential cancer biomarker. NANOG has been demonstrated to play an essential role in the maintenance of embryonic stem cells, and its pseudogene, NANOGP8, is suggested to promote the cancer stem cell phenotype. Similarly, SOX2 is another stemness gene highly expressed in cancer stem cells with an intimate involvement in GBM progression and metastasis as well as promotion of tumorigenicity in Neuroblastoma (NB). Since exosomes are critical in intercellular communication with a role in dissipating hallmark biomolecules responsible for cancer, we conducted a detailed analysis of the association of the SOX2 gene with exosomes whose sequence modulations with further research and appropriate sample size can help to identify diagnostic markers for cancer. We have detected SOX2 DNA associated with exosomes and have identified some of the SNPs and nucleotide variations in the sequences from a GBM and SH-SY5Y sample. Although a further systematic investigation of exosomal DNA from GBM and NB patient's blood is needed, finding of SOX2 DNA in exosomes in the current study may have value in clinical research. SOX2 is known to be misregulated in cancer cells by changes in miRNA function, such as SNPs in the binding sites. Our finding of cancer-specific SNPs in exosomal SOX2 DNA sequence may reflect those changes in the cancer stem cells as well as cancer cells. A series of our study on embryonic stem cell gene analysis in exosomal DNA may lead to a minimally invasive exosome-based diagnosis, and give us a key in understanding the mechanisms of cancer formation, progression, and metastasis.
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Affiliation(s)
- Manjusha Vaidya
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, Florida, United States of America
| | - Kiminobu Sugaya
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, Florida, United States of America
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Liu W, Chen G, Sun L, Zhang Y, Han J, Dai Y, He J, Shi S, Chen B. TUFT1 Promotes Triple Negative Breast Cancer Metastasis, Stemness, and Chemoresistance by Up-Regulating the Rac1/β-Catenin Pathway. Front Oncol 2019; 9:617. [PMID: 31338333 PMCID: PMC6629836 DOI: 10.3389/fonc.2019.00617] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 06/24/2019] [Indexed: 12/26/2022] Open
Abstract
Objectives: Triple negative breast cancer (TNBC) is a subtype of breast cancer with stronger invasion and metastasis, but its specific mechanism of action is still unclear. Tuft1 plays an important regulatory role in the survival of breast cancer cells; however, its role in regulating TNBC metastatic potential has not been well-characterized. Our aim was therefore to systematically study the mechanism of TUFT1 in the metastasis, stemness, and chemoresistance of TNBC and provide new predictors and targets for BC treatment. Methods: We used western blotting and IHC to measure TUFT1and Rac1-GTP expression levels in both human BC samples and cell lines. A combination of shRNA, migration/invasion assays, sphere formation assay, apoptosis assays, nude mouse xenograft tumor model, and GTP activity assays was used for further mechanistic studies. Results: We demonstrated that silencing TUFT1 in TNBC cells significantly inhibited cell metastasis and stemness in vitro. A nude mouse xenograft tumor model revealed that TUFT1 knockdown greatly decreased spontaneous lung metastasis of TNBC tumors. Mechanism studies showed that TUFT1 promoted tumor cell metastasis and stemness by up-regulating the Rac1/β-catenin pathway. Moreover, mechanistic studies indicated that the lack of TUFT1 expression in TNBC cells conferred more sensitive to chemotherapy and increased cell apoptosis via down-regulating the Rac1/β-catenin signaling pathway. Further, TUFT1 expression positively correlated with Rac1-GTP in TNBC samples, and co-expression of TUFT1 and Rac1-GTP predicted poor prognosis in TNBC patients who treated with chemotherapy. Conclusion: Our findings suggest that TUFT1/Rac1/β-catenin pathway may provide a potential target for more effective treatment of TNBC.
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Affiliation(s)
- Weiguang Liu
- Department of Breast Surgery, Affiliated Hospital of Hebei University of Engineering, Handan, China
| | - Guanglei Chen
- Department of Breast Surgery, Shengjing Hospital of China Medical University, Shenyang, China
| | - Lisha Sun
- Department of Breast Surgery, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yue Zhang
- Department of Physiology, Dalian Medical University, Dalian, China
| | - Jianjun Han
- Department of Breast Surgery, Affiliated Hospital of Hebei University of Engineering, Handan, China
| | - Yuna Dai
- Department of Breast Surgery, Affiliated Hospital of Hebei University of Engineering, Handan, China
| | - Jianchao He
- Department of Breast Surgery, Affiliated Hospital of Hebei University of Engineering, Handan, China
| | - Sufang Shi
- Department of Breast Surgery, Affiliated Hospital of Hebei University of Engineering, Handan, China
| | - Bo Chen
- Department of Breast Surgery, The First Hospital of China Medical University, Shenyang, China
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Association of Single-Nucleotide Polymorphism REX1 rs6815391, OCT4 rs13409 or rs3130932, and CTBP2 rs3740535 with Primary Lung Cancer Susceptibility: A Case-Control Study in a Chinese Population. DISEASE MARKERS 2019. [DOI: 10.1155/2019/4150263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The purpose of the current study is to explore the contribution of single-nucleotide polymorphisms (SNPs) of REX1 rs6815391, OCT4 rs13409 or rs3130932, and CTBP2 rs3740535 to the risk of lung cancer. A questionnaire survey was used to obtain basic information of the included subjects. A case control study was performed in 1121 patients and 1121 controls. All subjects were subjected to blood sampling for genomic DNA extraction and genotyping of the cancer stem cell-associated gene SNPs, including REX1 rs6815391, OCT4 rs13409 or rs3130932, and CTBP2 rs3740535 by real-time PCR. The association with the risk of primary lung cancer and interaction with environmental factors were assessed using unconditional logistic regression for the odds ratios and corresponding 95% confidence intervals. The genotype frequency distribution of OCT4 rs13409 loci was statistically significant, but there was no significant difference in the rest of the loci between lung cancer patients and healthy controls. The OCT4 gene was also related with lung cancer susceptibility in the genetic model after adjusting for lung cancer-related factors. Despite the presence of the dominant or recessive model, the four loci polymorphisms were associated with pollution near the place of residence, house type, worse ventilation situation, smoking, passive smoking, cooking oil fumes (COF), and family history of cancer, which increased the risk of lung cancer. Nonmarried status, 18.5≤BMI, COF, smoking, passive smoking, family history of cancer, and history of lung disease were independent risk factors of lung cancer susceptibility. Additionally, college degree or above, no pollution near the place of residence, protective genotype 1 or 2, and well ventilation can reduce the occurrence of lung cancer. There is an interaction between the four loci and environmental factors, and OCT4 rs13409 is a risk factor of primary lung cancer.
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Xiong H, Zhao W, Wang J, Seifer BJ, Ye C, Chen Y, Jia Y, Chen C, Shen J, Wang L, Sui X, Zhou J. Oncogenic mechanisms of Lin28 in breast cancer: new functions and therapeutic opportunities. Oncotarget 2018; 8:25721-25735. [PMID: 28147339 PMCID: PMC5421965 DOI: 10.18632/oncotarget.14891] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 01/11/2017] [Indexed: 12/25/2022] Open
Abstract
The RNA binding protein Lin28 is best known for the critical role in cell development, recent researches also have implied its oncogenic function in various human cancers, including breast cancer. Specifically, aberrant Lin28 participates in multiple pathological processes, such as proliferation, metastasis, radiotherapy and chemotherapy resistance, metabolism, immunity and inflammation as well as stemness. In this review, we summarize the let-7-dependent and let-7-independent mechanism regulated by Lin28, focusing on its relation with tumor hallmarks in breast cancer, and subsequently discuss our present knowledge of Lin28 to develop a molecular-based therapeutic strategy against breast cancer.
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Affiliation(s)
- Hanchu Xiong
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Wenhe Zhao
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Ji Wang
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | | | - Chenyang Ye
- Cancer Institute (Key Laboratory of Cancer Prevention & Intervention, National Ministry of Education), Second Affiliated Hospital, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yongxia Chen
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Yunlu Jia
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Cong Chen
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Jianguo Shen
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Linbo Wang
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Xinbing Sui
- Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, Zhejiang, China.,Department of Medical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, China
| | - Jichun Zhou
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, Zhejiang, China
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9
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Shao Q, Xu J, Guan X, Zhou B, Wei W, Deng R, Li D, Xu X, Zhu H. In vitro and in vivo effects of miRNA-19b/20a/92a on gastric cancer stem cells and the related mechanism. Int J Med Sci 2018; 15:86-94. [PMID: 29333091 PMCID: PMC5765743 DOI: 10.7150/ijms.21164] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 10/11/2017] [Indexed: 12/28/2022] Open
Abstract
We aimed to analyze the in vitro and in vivo effects of miRNA-19b/20a/92a on gastric cancer stem cells (GCSCs) and the related mechanism. GCSCs were cultured until adherence and differentiation, and subjected to miRNA microarray analysis to find and to verify miRNA deletion. Cells stably expressing lentivirus carrying miRNA-19b/20a/92a were constructed by transfection. The relationship between miRNA-19b/20a/92a and renewal of GCSCs was studied by the tumor sphere assay, and that between miRNA-19b/20a/92a and their proliferation was explored with MTT and colony formation assays. Target genes of miRNA for promoting the proliferation and self-renewal of GCSCs were found by using bioinformatics database, and verified by the reporter gene assay and Western blot. The expressions of miRNA-19b/20a/92a gradually decreased during the adherence and differentiation of GCSCs. The expressions of lentivirus carrying miRNA-17-19 gene in MKN28 and CD44-/EpCAM- cells were increased significantly. Transient transfection with pre-miRNA-19b/20a/92a elevated miRNA expressions in CD44-/EpCAM- and MKN28 cells, whereas transfection with pre-miRNA-19b/20a/92a antagonists reduced the expressions in SGC7901 and CD44+/EpCAM+ cells. Overexpression of lenti-miRNA-19b/20a/92a significantly enhanced the capability of GCSCs to form tumor spheres. In the presence of chemotherapeutic agent, the survival of lenti-miRNA-19b/20a/92a-infected cells was prolonged. Transient transfection with pre-miRNA-19b/20a/92a significantly increased the number of CD44+/EpCAM+ cells, but transfection with antagonists had the opposite outcomes. The stable miRNA-19b/20a/92a expression groups proliferated faster than the control group did. The proliferation of cells transfected with pre-miRNA-19b/20a/92a was accelerated, whereas that of cells transfected with the antagonists was decelerated. Compared with the control group, the number of colonies in the former group was higher, but that in the latter group was lower. miRNA-19b and miRNA-92a could bind the 3' untranslated region of HIPK1, while miRNA-20a was able to bind that of E2F1. Expressions of miRNA-20a and miRNA-92a in gastric cancer samples were negatively correlated with the prognosis of patients. miRNA-19b/20a/92a facilitated the self-renewal of GCSCs by targeting E2F1 and HIPK1 on the post-transcriptional level and activating the β-catenin signal transduction pathway. miRNA-92a was an independent factor and index predicting the prognosis of gastric cancer.
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Affiliation(s)
- Qianwen Shao
- Department of Oncology, The First Affiliated Hospital with Nanjing Medical University, Jiangsu Province Hospital, Guangzhou Road 300, Nanjing 210029, Jiangsu Province, China
| | - Jing Xu
- Department of Oncology, The First Affiliated Hospital with Nanjing Medical University, Jiangsu Province Hospital, Guangzhou Road 300, Nanjing 210029, Jiangsu Province, China
| | - Xin Guan
- Department of General Surgery, Cancer Hospital of Nanjing Medical University, Baiziting 42, Nanjing 210009, Jiangsu Province, China
| | - Bing Zhou
- Department of General Surgery, Cancer Hospital of Nanjing Medical University, Baiziting 42, Nanjing 210009, Jiangsu Province, China
| | - Wei Wei
- Department of General Surgery, Cancer Hospital of Nanjing Medical University, Baiziting 42, Nanjing 210009, Jiangsu Province, China
| | - Rong Deng
- Department of General Surgery, Cancer Hospital of Nanjing Medical University, Baiziting 42, Nanjing 210009, Jiangsu Province, China
| | - Dongzhen Li
- Department of General Surgery, Cancer Hospital of Nanjing Medical University, Baiziting 42, Nanjing 210009, Jiangsu Province, China
| | - Xinyu Xu
- Department of Pathology, Cancer Hospital of Nanjing Medical University, Baiziting 42, Nanjing 210009, Jiangsu Province, China
| | - Haitao Zhu
- Department of General Surgery, Cancer Hospital of Nanjing Medical University, Baiziting 42, Nanjing 210009, Jiangsu Province, China
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10
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Yadav A, Gupta A, Rastogi N, Agrawal S, Kumar A, Kumar V, Mittal B. Association of cancer stem cell markers genetic variants with gallbladder cancer susceptibility, prognosis, and survival. Tumour Biol 2015; 37:1835-44. [PMID: 26318430 DOI: 10.1007/s13277-015-3929-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 08/12/2015] [Indexed: 12/16/2022] Open
Abstract
Genes important to stem cell progression have been involved in the genetics and clinical outcome of cancers. We investigated germ line variants in cancer stem cell (CSC) genes to predict susceptibility and efficacy of chemoradiotherapy treatment in gallbladder cancer (GBC) patients. In this study, we assessed the effect of SNPs in CSC genes (surface markers CD44, ALCAM, EpCAM, CD133) and (molecular markers NANOG, SOX-2, LIN-28A, ALDH1A1, OCT-4) with GBC susceptibility and prognosis. Total 610 GBC patients and 250 controls were genotyped by using PCR-RFLP, ARMS-PCR, and TaqMan allelic discrimination assays. Chemotoxicity graded 2-4 in 200 patients and tumor response was recorded in 140 patients undergoing neoadjuvant chemotherapy (NACT). Differences in genotype and haplotype frequency distributions were calculated by binary logistic regression. Gene-gene interaction model was analyzed by generalized multifactor dimensionality reduction (GMDR). Overall survival was assessed by Kaplan-Meier survival curve and multivariate Cox-proportional methods. ALCAM Ars1157Crs10511244 (P = 0.0035) haplotype was significantly associated with GBC susceptibility. In GMDR analysis, ALCAM rs1157G>A, EpCAM rs1126497T>C emerged as best significant interaction model with GBC susceptibility and ALDH1A1 rs13959T>G with increased risk of grade 3-4 hematological toxicity. SOX-2 rs11915160A>C, OCT-4 rs3130932T>G, and NANOG rs11055786T>C were found best gene-gene interaction model for predicting response to NACT. In both Cox-proportional and recursive partitioning ALCAM rs1157GA+AA genotype showed higher mortality and hazard ratio. ALCAM gene polymorphisms associated with GBC susceptibility and survival while OCT-4, SOX-2, and NANOG variants showed an interactive role with treatment response.
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Affiliation(s)
- Anu Yadav
- Department of Genetics, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, UP, India
| | - Annapurna Gupta
- Department of Genetics, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, UP, India
| | - Neeraj Rastogi
- Department of Radiotherapy, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, UP, India
| | - Sushma Agrawal
- Department of Radiotherapy, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, UP, India
| | - Ashok Kumar
- Department of Gastroenterology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, UP, India
| | | | - Balraj Mittal
- Department of Genetics, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, UP, India.
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Qu Y, Han B, Yu Y, Yao W, Bose S, Karlan BY, Giuliano AE, Cui X. Evaluation of MCF10A as a Reliable Model for Normal Human Mammary Epithelial Cells. PLoS One 2015; 10:e0131285. [PMID: 26147507 PMCID: PMC4493126 DOI: 10.1371/journal.pone.0131285] [Citation(s) in RCA: 164] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 06/01/2015] [Indexed: 01/16/2023] Open
Abstract
Breast cancer is the most common cancer in women and a leading cause of cancer-related deaths for women worldwide. Various cell models have been developed to study breast cancer tumorigenesis, metastasis, and drug sensitivity. The MCF10A human mammary epithelial cell line is a widely used in vitro model for studying normal breast cell function and transformation. However, there is limited knowledge about whether MCF10A cells reliably represent normal human mammary cells. MCF10A cells were grown in monolayer, suspension (mammosphere culture), three-dimensional (3D) “on-top” Matrigel, 3D “cell-embedded” Matrigel, or mixed Matrigel/collagen I gel. Suspension culture was performed with the MammoCult medium and low-attachment culture plates. Cells grown in 3D culture were fixed and subjected to either immunofluorescence staining or embedding and sectioning followed by immunohistochemistry and immunofluorescence staining. Cells or slides were stained for protein markers commonly used to identify mammary progenitor and epithelial cells. MCF10A cells expressed markers representing luminal, basal, and progenitor phenotypes in two-dimensional (2D) culture. When grown in suspension culture, MCF10A cells showed low mammosphere-forming ability. Cells in mammospheres and 3D culture expressed both luminal and basal markers. Surprisingly, the acinar structure formed by MCF10A cells in 3D culture was positive for both basal markers and the milk proteins β-casein and α-lactalbumin. MCF10A cells exhibit a unique differentiated phenotype in 3D culture which may not exist or be rare in normal human breast tissue. Our results raise a question as to whether the commonly used MCF10A cell line is a suitable model for human mammary cell studies.
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Affiliation(s)
- Ying Qu
- Department of Surgery, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California, United States of America
| | - Bingchen Han
- Department of Surgery, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California, United States of America
| | - Yi Yu
- Department of Surgery, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California, United States of America
| | - Weiwu Yao
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, 600 Yishan Road, Shanghai, China
| | - Shikha Bose
- Department of Pathology, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California, United States of America
| | - Beth Y. Karlan
- Department of Obstetrics and Gynecology, Women’s Cancer Program, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California, United States of America
| | - Armando E. Giuliano
- Department of Surgery, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California, United States of America
| | - Xiaojiang Cui
- Department of Surgery, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California, United States of America
- Department of Obstetrics and Gynecology, Women’s Cancer Program, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California, United States of America
- * E-mail:
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