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Gómez-Herranz M, Faktor J, Yébenes Mayordomo M, Pilch M, Nekulova M, Hernychova L, Ball KL, Vojtesek B, Hupp TR, Kote S. Emergent Role of IFITM1/3 towards Splicing Factor (SRSF1) and Antigen-Presenting Molecule (HLA-B) in Cervical Cancer. Biomolecules 2022; 12:1090. [PMID: 36008984 PMCID: PMC9405601 DOI: 10.3390/biom12081090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/27/2022] [Accepted: 08/01/2022] [Indexed: 11/24/2022] Open
Abstract
The IFITM restriction factors play a role in cancer cell progression through undefined mechanisms. We investigate new protein-protein interactions for IFITM1/3 in the context of cancer that would shed some light on how IFITM1/3 attenuate the expression of targeted proteins such as HLA-B. SBP-tagged IFITM1 protein was used to identify an association of IFITM1 protein with the SRSF1 splicing factor and transporter of mRNA to the ribosome. Using in situ proximity ligation assays, we confirmed a predominant cytosolic protein-protein association for SRSF1 and IFITM1/3. Accordingly, IFITM1/3 interacted with HLA-B mRNA in response to IFNγ stimulation using RNA-protein proximity ligation assays. In addition, RT-qPCR assays in IFITM1/IFITM3 null cells and wt-SiHa cells indicated that HLA-B gene expression at the mRNA level does not account for lowered HLA-B protein synthesis in response to IFNγ. Complementary, shotgun RNA sequencing did not show major transcript differences between IFITM1/IFITM3 null cells and wt-SiHa cells. Furthermore, ribosome profiling using sucrose gradient sedimentation identified a reduction in 80S ribosomal fraction an IFITM1/IFITM3 null cells compared to wild type. It was partially reverted by IFITM1/3 complementation. Our data link IFITM1/3 proteins to HLA-B mRNA and SRSF1 and, all together, our results begin to elucidate how IFITM1/3 catalyze the synthesis of target proteins. IFITMs are widely studied for their role in inhibiting viruses, and multiple studies have associated IFITMs with cancer progression. Our study has identified new proteins associated with IFITMs which support their role in mediating protein expression; a pivotal function that is highly relevant for viral infection and cancer progression. Our results suggest that IFITM1/3 affect the expression of targeted proteins; among them, we identified HLA-B. Changes in HLA-B expression could impact the presentation and recognition of oncogenic antigens on the cell surface by cytotoxic T cells and, ultimately, limit tumor cell eradication. In addition, the role of IFITMs in mediating protein abundance is relevant, as it has the potential for regulating the expression of viral and oncogenic proteins.
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Affiliation(s)
- Maria Gómez-Herranz
- Institute of Genetics and Cancer, University of Edinburgh, Edinburgh EH4 2XU, UK
- International Centre for Cancer Vaccine Science, University of Gdańsk, 80-822 Gdańsk, Poland
| | - Jakub Faktor
- International Centre for Cancer Vaccine Science, University of Gdańsk, 80-822 Gdańsk, Poland
- Masaryk Memorial Cancer Institute, Research Centre for Applied Molecular Oncology, 65653 Brno, Czech Republic
| | - Marcos Yébenes Mayordomo
- Institute of Genetics and Cancer, University of Edinburgh, Edinburgh EH4 2XU, UK
- International Centre for Cancer Vaccine Science, University of Gdańsk, 80-822 Gdańsk, Poland
| | - Magdalena Pilch
- Institute of Genetics and Cancer, University of Edinburgh, Edinburgh EH4 2XU, UK
- International Centre for Cancer Vaccine Science, University of Gdańsk, 80-822 Gdańsk, Poland
| | - Marta Nekulova
- Masaryk Memorial Cancer Institute, Research Centre for Applied Molecular Oncology, 65653 Brno, Czech Republic
| | - Lenka Hernychova
- Masaryk Memorial Cancer Institute, Research Centre for Applied Molecular Oncology, 65653 Brno, Czech Republic
| | - Kathryn L. Ball
- Institute of Genetics and Cancer, University of Edinburgh, Edinburgh EH4 2XU, UK
| | - Borivoj Vojtesek
- Masaryk Memorial Cancer Institute, Research Centre for Applied Molecular Oncology, 65653 Brno, Czech Republic
| | - Ted R. Hupp
- Institute of Genetics and Cancer, University of Edinburgh, Edinburgh EH4 2XU, UK
- International Centre for Cancer Vaccine Science, University of Gdańsk, 80-822 Gdańsk, Poland
- Masaryk Memorial Cancer Institute, Research Centre for Applied Molecular Oncology, 65653 Brno, Czech Republic
| | - Sachin Kote
- International Centre for Cancer Vaccine Science, University of Gdańsk, 80-822 Gdańsk, Poland
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Das AP, Chopra M, Agarwal SM. Prioritization and Meta-analysis of regulatory SNPs identified IL6, TGFB1, TLR9 and MMP7 as significantly associated with cervical cancer. Cytokine 2022; 157:155954. [PMID: 35810505 DOI: 10.1016/j.cyto.2022.155954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 04/07/2022] [Accepted: 06/21/2022] [Indexed: 12/24/2022]
Abstract
Cervical cancer is a leading women cancer globally with respect to both incidence and mortality. Its increased risk has been linked with HPV infection and genetic variations like single nucleotide polymorphisms (SNPs). Although, studies have been published which evaluates the effect of SNPs in a few candidate genes, however the role of number of regulatory SNPs (rSNPs) in cervical cancer is not available. As literature evidence has shown that non-coding rSNPs are related with increasing cervical cancer risk, we undertook this study to prioritize the important rSNPs and elucidate their role. A search was conducted in PubMed up to December 2020, which led to the identification of 263 articles and 969 SNPs in the non-coding region. These 969 SNPs were analysed through rSNPBase and RegulomeDB, leading to identification of 105 rSNPs. Afterwards, a regulatory module was constructed using protein-protein interaction data and a hub of highly interacting 23 target genes (corresponding to 34 rSNPs) was identified using MCODE. To further understand the mechanism of action of the 34 rSNPs, their transcription factor information with respect to cervical cancer was retrieved. To evaluate the pooled effect of these prioritized polymorphisms in cervical cancer patients, a meta-analysis was performed on 10,537 cases and 11,252 controls from 30 studies corresponding to 8 rSNPs. It led to identification of polymorphisms in IL6 (rs2069837), TGFB1 (rs1800469), TLR9 (rs187084) and MMP7 (rs11568818) which are significantly (p < 0.05) associated with increased cervical cancer risk at the population level. Overall, the study demonstrates that rSNPs targeting immune and inflammatory genes (IL1B, IL6, IL10, IL18, TGFB1, CCR5, CD40, TLR9, and MMP7) are associated with cervical cancer.
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Affiliation(s)
- Agneesh Pratim Das
- Bioinformatics Division, ICMR-National Institute of Cancer Prevention and Research, I-7, Sector-39, Noida 201301, India
| | - Meenu Chopra
- Bioinformatics Division, ICMR-National Institute of Cancer Prevention and Research, I-7, Sector-39, Noida 201301, India
| | - Subhash M Agarwal
- Bioinformatics Division, ICMR-National Institute of Cancer Prevention and Research, I-7, Sector-39, Noida 201301, India.
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Kaida A, Iwakuma T. Regulation of p53 and Cancer Signaling by Heat Shock Protein 40/J-Domain Protein Family Members. Int J Mol Sci 2021; 22:13527. [PMID: 34948322 PMCID: PMC8706882 DOI: 10.3390/ijms222413527] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 12/13/2021] [Accepted: 12/14/2021] [Indexed: 12/27/2022] Open
Abstract
Heat shock proteins (HSPs) are molecular chaperones that assist diverse cellular activities including protein folding, intracellular transportation, assembly or disassembly of protein complexes, and stabilization or degradation of misfolded or aggregated proteins. HSP40, also known as J-domain proteins (JDPs), is the largest family with over fifty members and contains highly conserved J domains responsible for binding to HSP70 and stimulation of the ATPase activity as a co-chaperone. Tumor suppressor p53 (p53), the most frequently mutated gene in human cancers, is one of the proteins that functionally interact with HSP40/JDPs. The majority of p53 mutations are missense mutations, resulting in acquirement of unexpected oncogenic activities, referred to as gain of function (GOF), in addition to loss of the tumor suppressive function. Moreover, stability and levels of wild-type p53 (wtp53) and mutant p53 (mutp53) are crucial for their tumor suppressive and oncogenic activities, respectively. However, the regulatory mechanisms of wtp53 and mutp53 are not fully understood. Accumulating reports demonstrate regulation of wtp53 and mutp53 levels and/or activities by HSP40/JDPs. Here, we summarize updated knowledge related to the link of HSP40/JDPs with p53 and cancer signaling to improve our understanding of the regulation of tumor suppressive wtp53 and oncogenic mutp53 GOF activities.
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Affiliation(s)
- Atsushi Kaida
- Department of Oral Radiation Oncology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8510, Japan;
- Department of Cancer Biology, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Tomoo Iwakuma
- Department of Cancer Biology, University of Kansas Medical Center, Kansas City, KS 66160, USA
- Department of Pediatrics, Children’s Mercy Research Institute, Kansas City, MO 64108, USA
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Ji J, Xu MX, Qian TY, Zhu SZ, Jiang F, Liu ZX, Xu WS, Zhou J, Xiao MB. The AKR1B1 inhibitor epalrestat suppresses the progression of cervical cancer. Mol Biol Rep 2020; 47:6091-6103. [PMID: 32761301 DOI: 10.1007/s11033-020-05685-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 07/26/2020] [Indexed: 12/24/2022]
Abstract
Cervical cancer is the leading cause of cancer-related death among women worldwide. Identifying an effective treatment with fewer side effects is imperative, because all of the current treatments have unique disadvantages. Aldo-keto reductase family 1 member B1 (AKR1B1) is highly expressed in various cancers and is associated with tumor development, but has not been studied in cervical cancer. In the current study, we used CRISPR/Cas9 technology to establish a stable HeLa cell line with AKR1B1 knockout. In vitro, AKR1B1 knockout inhibited the proliferation, migration and invasion of HeLa cells, providing evidence that AKR1B1 is an innovative therapeutic target. Notably, the clinically used epalrestat, an inhibitor of aldose reductases, including AKR1B1, had the same effect as AKR1B1 knockout on HeLa cells. This result suggests that epalrestat could be used in the clinical treatment of cervical cancer, a prospect that undoubtedly requires further research. Moreover, aiming to determine the underlying regulatory mechanism of AKR1B1, we screened a series of differentially regulated genes (DEGs) by RNA sequencing and verified selected DEGs by quantitative RT-PCR. In addition, gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses of the DEGs revealed a correlation between AKR1B1 and cancer. In summary, epalrestat inhibits the progression of cervical cancer by inhibiting AKR1B1, and thus may be a new drug for the clinical treatment of cervical cancer.
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Affiliation(s)
- Jie Ji
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
- Department of Gastroenterology and Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, No. 20 Xisi Road, Nantong, 226001, People's Republic of China
- Medical College, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
| | - Min-Xue Xu
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
- Department of Gastroenterology and Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, No. 20 Xisi Road, Nantong, 226001, People's Republic of China
- Medical College, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
| | - Tian-Yang Qian
- Chinese Medicine 193, First Clinical Medical School, Nanjing University of Chinese Medicine, Nanjing, People's Republic of China
| | - Sheng-Ze Zhu
- Medical College, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
| | - Feng Jiang
- Department of Gastroenterology and Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, No. 20 Xisi Road, Nantong, 226001, People's Republic of China
| | - Zhao-Xiu Liu
- Department of Gastroenterology and Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, No. 20 Xisi Road, Nantong, 226001, People's Republic of China
| | - Wei-Song Xu
- Department of Gastroenterology, Second People's Hospital of Nantong, Nantong, 226001, Jiangsu, People's Republic of China
| | - Juan Zhou
- Department of Respiratory Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, People's Republic of China.
| | - Ming-Bing Xiao
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, People's Republic of China.
- Department of Gastroenterology and Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, No. 20 Xisi Road, Nantong, 226001, People's Republic of China.
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Yan J, Jiang Y, Lu J, Wu J, Zhang M. Inhibiting of Proliferation, Migration, and Invasion in Lung Cancer Induced by Silencing Interferon-Induced Transmembrane Protein 1 (IFITM1). BIOMED RESEARCH INTERNATIONAL 2019; 2019:9085435. [PMID: 31205947 PMCID: PMC6530206 DOI: 10.1155/2019/9085435] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 03/27/2019] [Accepted: 04/18/2019] [Indexed: 01/09/2023]
Abstract
Interferon-induced transmembrane protein 1 (IFITM1), a 17-kDa membrane protein, is generally known as a modulator in many cellular functions. Recent studies showed overexpression of IFITM1 in cancers and relationship between IFITM1 overexpression and tumor progression. However, the role of IFITM1 in lung cancer remains unclear. Here, we presented the overexpression of IFITM1 in lung cancer tissues and cell lines A549 and H460 using quantitative Real-Time RT-PCR. In vitro assay indicated IFITM1 silencing inhibited lung cancer cell proliferation, migration, and invasion. Further, in vivo assay showed that IFITM1 silencing markedly suppressed cell growth and metastasis of lung cancer in tumor-bearing BALB/c nude mice. Mechanistically, we found that IFITM1 silencing significantly alleviated the protein levels of β-catenin, cyclin D1, and c-Mycin lung cancer cells and tumor samples. Taken together, our study revealed the role of IFITM1 as a tumor promoter during lung cancer development and the possible molecular mechanism.
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Affiliation(s)
- Jun Yan
- Department of Pathology, Tianjin First Center Hospital, Tianjin 300192, China
| | - Ying Jiang
- Department of Pathology, Tianjin First Center Hospital, Tianjin 300192, China
| | - Jianfeng Lu
- Department of Pathology, Tianjin First Center Hospital, Tianjin 300192, China
| | - Jianhui Wu
- Department of Pathology, Tianjin First Center Hospital, Tianjin 300192, China
| | - Mingfang Zhang
- Department of Pathology, Tianjin First Center Hospital, Tianjin 300192, China
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Koh YW, Han JH, Jeong D, Kim CJ. Prognostic significance of IFITM1 expression and correlation with microvessel density and epithelial-mesenchymal transition signature in lung adenocarcinoma. Pathol Res Pract 2019; 215:152444. [PMID: 31079850 DOI: 10.1016/j.prp.2019.152444] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 04/20/2019] [Accepted: 05/05/2019] [Indexed: 02/08/2023]
Abstract
We evaluated the relationship between interferon-induced transmembrane protein 1 (IFITM1) expression, epithelial-mesenchymal transition (EMT) signature and angiogenesis in lung adenocarcinoma. Additionally, we examined prognostic significance of IFITM1 according to pTNM stage to confirm that IFITM1 can serve as a complement to the pTNM stage. A total of 141 lung adenocarcinoma specimens were evaluated retrospectively by immunohistochemical staining for IFITM1, EMT markers (e-cadherin, β-catenin, and vimentin), and CD31 to measure microvessel density. IFITM1was expressed in 46.8% of the specimens. IFITM1 expression was significantly correlated with increased microvessel density (P = 0.048). However, IFITM1 expression was not associated with three EMT markers. In a multivariate analysis, IFITM1 was an independent prognostic factor for overall survival in a multivariate analysis (hazard ratio: 2.59, P = 0.01). Online database with data from 720 lung adenocarcinoma patients also revealed a negative prognostic significance of IFITM1 (P < 0.001). Furthermore, high IFITM1 expression was significantly correlated with decreased OS rates in each pTNM stage. IFITM1 is significantly correlated with angiogenesis and it may be used as a useful additional prognostic marker to aid pTNM classification.
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Affiliation(s)
- Young Wha Koh
- Department of Pathology, Ajou University School of Medicine, Suwon, Republic of Korea.
| | - Jae-Ho Han
- Department of Pathology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Dongjun Jeong
- Department of Pathology, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
| | - Chang-Jin Kim
- Department of Pathology, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
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7
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Gómez-Herranz M, Nekulova M, Faktor J, Hernychova L, Kote S, Sinclair EH, Nenutil R, Vojtesek B, Ball KL, Hupp TR. The effects of IFITM1 and IFITM3 gene deletion on IFNγ stimulated protein synthesis. Cell Signal 2019; 60:39-56. [PMID: 30951861 PMCID: PMC7111284 DOI: 10.1016/j.cellsig.2019.03.024] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/29/2019] [Accepted: 03/29/2019] [Indexed: 02/02/2023]
Abstract
Interferon-induced transmembrane proteins IFITM1 and IFITM3 (IFITM1/3) play a role in both RNA viral restriction and in human cancer progression. Using immunohistochemical staining of FFPE tissue, we identified subgroups of cervical cancer patients where IFITM1/3 protein expression is inversely related to metastasis. Guide RNA-CAS9 methods were used to develop an isogenic IFITM1/IFITM3 double null cervical cancer model in order to define dominant pathways triggered by presence or absence of IFITM1/3 signalling. A pulse SILAC methodology identified IRF1, HLA-B, and ISG15 as the most dominating IFNγ inducible proteins whose synthesis was attenuated in the IFITM1/IFITM3 double-null cells. Conversely, SWATH-IP mass spectrometry of ectopically expressed SBP-tagged IFITM1 identified ISG15 and HLA-B as dominant co-associated proteins. ISG15ylation was attenuated in IFNγ treated IFITM1/IFITM3 double-null cells. Proximity ligation assays indicated that HLA-B can interact with IFITM1/3 proteins in parental SiHa cells. Cell surface expression of HLA-B was attenuated in IFNγ treated IFITM1/IFITM3 double-null cells. SWATH-MS proteomic screens in cells treated with IFITM1-targeted siRNA cells resulted in the attenuation of an interferon regulated protein subpopulation including MHC Class I molecules as well as IFITM3, STAT1, B2M, and ISG15. These data have implications for the function of IFITM1/3 in mediating IFNγ stimulated protein synthesis including ISG15ylation and MHC Class I production in cancer cells. The data together suggest that pro-metastatic growth associated with IFITM1/3 negative cervical cancers relates to attenuated expression of MHC Class I molecules that would support tumor immune escape. IFITM1/3 expression in cervical cancers inversely correlates with metastases. Isogenic IFITM1 and IFITM3 null cervical cancer cells were developed. Pulse SILAC approaches were used to define IFITM1/3 dependent signalling pathways. The major IFITM1/3-interferon-γ dependent effectors are HLA-B and ISG15. IFITM1/3 loss would be predicted to reduce HLA expression and ISG15ylation in vivo.
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Affiliation(s)
- Maria Gómez-Herranz
- University of Edinburgh, Institute of Genetics and Molecular Medicine, Edinburgh EH4 2XR, United Kingdom
| | - Marta Nekulova
- Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, 656 53 Brno, Czech Republic
| | - Jakub Faktor
- Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, 656 53 Brno, Czech Republic
| | - Lenka Hernychova
- Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, 656 53 Brno, Czech Republic
| | - Sachin Kote
- University of Gdansk, International Centre for Cancer Vaccine Science, Department of Chemistry, Gdansk, Poland
| | - Elizabeth H Sinclair
- University of Edinburgh, Institute of Genetics and Molecular Medicine, Edinburgh EH4 2XR, United Kingdom
| | - Rudolf Nenutil
- Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, 656 53 Brno, Czech Republic
| | - Borivoj Vojtesek
- Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, 656 53 Brno, Czech Republic.
| | - Kathryn L Ball
- University of Edinburgh, Institute of Genetics and Molecular Medicine, Edinburgh EH4 2XR, United Kingdom; Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, 656 53 Brno, Czech Republic.
| | - Ted R Hupp
- University of Edinburgh, Institute of Genetics and Molecular Medicine, Edinburgh EH4 2XR, United Kingdom; Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, 656 53 Brno, Czech Republic; University of Gdansk, International Centre for Cancer Vaccine Science, Department of Chemistry, Gdansk, Poland.
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8
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Zoppino FCM, Guerrero-Gimenez ME, Castro GN, Ciocca DR. Comprehensive transcriptomic analysis of heat shock proteins in the molecular subtypes of human breast cancer. BMC Cancer 2018; 18:700. [PMID: 29954368 PMCID: PMC6022707 DOI: 10.1186/s12885-018-4621-1] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 06/20/2018] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Heat Shock Proteins (HSPs), a family of genes with key roles in proteostasis, have been extensively associated with cancer behaviour. However, the HSP family is quite large and many of its members have not been investigated in breast cancer (BRCA), particularly in relation with the current molecular BRCA classification. In this work, we performed a comprehensive transcriptomic study of the HSP gene family in BRCA patients from both The Cancer Genome Atlas (TCGA) and the Molecular Taxonomy of Breast Cancer International Consortium (METABRIC) cohorts discriminating the BRCA intrinsic molecular subtypes. METHODS We examined gene expression levels of 1097 BRCA tissue samples retrieved from TCGA and 1981 samples of METABRIC, focusing mainly on the HSP family (95 genes). Data were stratified according to the PAM50 gene expression (Luminal A, Luminal B, HER2, Basal, and Normal-like). Transcriptomic analyses include several statistical approaches: differential gene expression, hierarchical clustering and survival analysis. RESULTS Of the 20,531 analysed genes we found that in BRCA almost 30% presented deregulated expression (19% upregulated and 10% downregulated), while of the HSP family 25% appeared deregulated (14% upregulated and 11% downregulated) (|fold change| > 2 comparing BRCA with normal breast tissues). The study revealed the existence of shared HSP genes deregulated in all subtypes of BRCA while other HSPs were deregulated in specific subtypes. Many members of the Chaperonin subfamily were found upregulated while three members (BBS10, BBS12 and CCTB6) were found downregulated. HSPC subfamily had moderate increments of transcripts levels. Various genes of the HSP70 subfamily were upregulated; meanwhile, HSPA12A and HSPA12B appeared strongly downregulated. The strongest downregulation was observed in several HSPB members except for HSPB1. DNAJ members showed heterogeneous expression pattern. We found that 23 HSP genes correlated with overall survival and three HSP-based transcriptional profiles with impact on disease outcome were recognized. CONCLUSIONS We identified shared and specific HSP genes deregulated in BRCA subtypes. This study allowed the recognition of HSP genes not previously associated with BRCA and/or any cancer type, and the identification of three clinically relevant clusters based on HSPs expression patterns with influence on overall survival.
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Affiliation(s)
- Felipe C. M. Zoppino
- Laboratory of Oncology, Institute of Medicine and Experimental Biology of Cuyo (IMBECU), National Scientific and Technical Research Council (CONICET), Av. Dr. Ruiz Leal s/n, Parque General San Martín, 5500 Mendoza, Argentina
| | - Martin E. Guerrero-Gimenez
- Laboratory of Oncology, Institute of Medicine and Experimental Biology of Cuyo (IMBECU), National Scientific and Technical Research Council (CONICET), Av. Dr. Ruiz Leal s/n, Parque General San Martín, 5500 Mendoza, Argentina
| | - Gisela N. Castro
- Laboratory of Oncology, Institute of Medicine and Experimental Biology of Cuyo (IMBECU), National Scientific and Technical Research Council (CONICET), Av. Dr. Ruiz Leal s/n, Parque General San Martín, 5500 Mendoza, Argentina
| | - Daniel R. Ciocca
- Laboratory of Oncology, Institute of Medicine and Experimental Biology of Cuyo (IMBECU), National Scientific and Technical Research Council (CONICET), Av. Dr. Ruiz Leal s/n, Parque General San Martín, 5500 Mendoza, Argentina
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9
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Wu D, Zhang J, Fan P, Li H, Li D, Pan H, He H, Ren X, Pan Z, Shao R, Pan Z. Methylation in the promoter regions of WT1, NKX6-1 and DBC1 genes in cervical cancer tissues of Uygur women in Xinjiang. Genet Mol Biol 2018; 41:9-17. [PMID: 29658966 PMCID: PMC5901490 DOI: 10.1590/1678-4685-gmb-2016-0146] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 06/07/2017] [Indexed: 11/22/2022] Open
Abstract
This study aimed to explore: 1) DNA methylation in the promoter regions of Wilms tumor gene 1 (WT1), NK6 transcription factor related locus 1 gene (NKX6-1) and Deleted in bladder cancer 1 (DBC1) gene in cervical cancer tissues of Uygur women in Xinjiang, and 2) the correlation of gene methylation with the infection of HPV16/18 viruses. We detected HPV16/18 infection in 43 normal cervical tissues, 30 cervical intraepithelial neoplasia lesions (CIN) and 48 cervical cancer tissues with polymerase chain reaction (PCR) method. Methylation in the promoter regions of the WT1, NKX6-1 and DBC1 genes in the above-mentioned tissues was measured by methylation-specific PCR (MSP) and cloning sequencing. The expression level of these three genes was measured by real-time PCR (qPCR) in 10 methylation-positive cervical cancer tissues and 10 methylation-negative normal cervical tissues. We found that the infection of HPV16 in normal cervical tissues, CIN and cervical cancer tissues was 14.0, 36.7 and 66.7%, respectively. The infection of HPV18 was 0, 6.7 and 10.4%, respectively. The methylation rates of WT1, NKX6-1 and DBC1 genes were 7.0, 11.6 and 23.3% in normal cervical tissues, 36.7, 46.7 and 30.0% in CIN tissues, and 89.6, 77.1 and 85.4% in cervical cancer tissues. Furthermore, WT1, NKX6-1 and DBC1 genes were hypermethylated in the high-grade squamous intraepithelial lesion (CIN2, CIN3) and in the cervical cancer tissues with infection of HPV16/18 (both P< 0.05). The expression of WT1, NKX6-1 and DBC1 was significantly lower in the methylation-positive cervical cancer tissues than in methylation-negative normal cervical tissues. Our findings indicated that methylation in the promoter regions of WT1, NKX6-1 and DBC1 is correlated with cervical cancer tumorigenesis in Uygur women. The infection of HPV16/18 might be correlated with methylation in these genes. Gene inactivation caused by methylation might be related to the incidence and development of cervical cancer.
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Affiliation(s)
- Dan Wu
- Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, Xinjiang, China.,Clinical Laboratory, Branch of the First Affiliated Hospital of Xinjiang Medical University, Changji, Xinjiang, China
| | - Jinli Zhang
- Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, Xinjiang, China
| | - Peiwen Fan
- Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, Xinjiang, China
| | - Hongtao Li
- Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, Xinjiang, China
| | - Dongmei Li
- Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, Xinjiang, China
| | - Huan Pan
- Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, Xinjiang, China
| | - Hongchang He
- Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, Xinjiang, China
| | - Xianxian Ren
- Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, Xinjiang, China
| | - Zhenzhen Pan
- Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, Xinjiang, China
| | - Renfu Shao
- Genecology Research Centre, School of Science and Engineering, University of the Sunshine Coast, Maroochydore DC, Queensland, Australia
| | - Zemin Pan
- Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, Xinjiang, China
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10
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Sari IN, Yang YG, Phi LTH, Kim H, Baek MJ, Jeong D, Kwon HY. Interferon-induced transmembrane protein 1 (IFITM1) is required for the progression of colorectal cancer. Oncotarget 2018; 7:86039-86050. [PMID: 27852071 PMCID: PMC5349895 DOI: 10.18632/oncotarget.13325] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 11/07/2016] [Indexed: 12/15/2022] Open
Abstract
Interferon-induced transmembrane protein 1 (IFITM1) has been shown to be implicated in multiple cancers, yet little is known about biological significance of IFITM1 in colorectal cancer. Here, we show that IFITM1 is highly expressed in metastatic colorectal cancer cell lines as well as colorectal patient-derived tumor samples, and its expression is associated with a poor prognosis of the disease. Also, IFITM1 depletion resulted in a significant reduction in the mobility of cancer cell lines, whereas ectopic expression of IFITM1 promoted the migration of cancer cells. Epithelial-mesenchymal transition (EMT) signature was dysregulated by both loss and gain of function of IFITM1, which was partially reverted by Caveolin-1 (CAV1). Therefore, these results suggest that IFITM1 may be a prognostic marker and an attractive target to achieve better therapeutic outcomes in colorectal cancer.
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Affiliation(s)
- Ita Novita Sari
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Republic of Korea
| | - Ying-Gui Yang
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Republic of Korea
| | - Lan Thi Hanh Phi
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Republic of Korea
| | - Hyungjoo Kim
- Soonchunhyang Medical Science Research Institute, College of Medicine, Soonchunhyang University, Republic of Korea
| | - Moo Jun Baek
- Department of Surgery, Department of Pathology, College of Medicine, Soonchunhyang University, Republic of Korea
| | - Dongjun Jeong
- Soonchunhyang Medical Science Research Institute, College of Medicine, Soonchunhyang University, Republic of Korea
| | - Hyog Young Kwon
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Republic of Korea
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11
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Kim BS, Yang SS, Kim CS, Lee J. Zoledronate suppresses VEGF‑induced capillary tube formation and inhibits expression of interferon‑induced transmembrane protein‑1 in human umbilical vein endothelial cells. Int J Mol Med 2018; 41:2879-2884. [PMID: 29484376 DOI: 10.3892/ijmm.2018.3497] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 01/31/2018] [Indexed: 11/05/2022] Open
Abstract
Interferon‑induced transmembrane protein 1 (IFITM1) is a member of the interferon‑induced transmembrane protein family and has recently been identified as a novel protein participant in angiogenesis. Zoledronate (ZON), a nitrogen‑containing bisphosphonate, is widely used in the treatment of osteoporosis and to prevent bone metastases of certain cancer types. However, the association between ZON and IFITM1 has remained elusive. The present study investigated the effect of ZON on the expression of IFITM1 during vascular endothelial growth factor (VEGF)‑induced capillary tube formation in human umbilical vein endothelial cells. It was observed that cell proliferation and VEGF‑induced tube formation were significantly inhibited by treatment with 10 µM ZON. The expression of IFITM1 increased during VEGF‑induced tube formation. However, the VEGF‑induced increase in IFITM1 expression exhibited a dose‑ and time‑dependent decrease with ZON treatment at the mRNA and protein level. Furthermore, matrix metalloproteinase‑9 activation was markedly decreased by ZON treatment. These results suggest that induction of IFITM1 expression may be involved in the anti‑angiogenic activity of ZON.
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Affiliation(s)
- Beom Su Kim
- Carbon Nano Convergence Technology Center for Next Generation Engineers, Chonbuk National University, Jeonju, North Jeolla 54896, Republic of Korea
| | - Sun-Sik Yang
- Bonecell Biotech Inc., Daejeon, South Chungcheong 302‑830, Republic of Korea
| | - Cheol-Sang Kim
- Carbon Nano Convergence Technology Center for Next Generation Engineers, Chonbuk National University, Jeonju, North Jeolla 54896, Republic of Korea
| | - Jun Lee
- Bonecell Biotech Inc., Daejeon, South Chungcheong 302‑830, Republic of Korea
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12
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Zheng W, Zhao Z, Yi X, Zuo Q, Li H, Guo X, Li D, He H, Pan Z, Fan P, Li F, Liao Y, Shao R. Down-regulation of IFITM1 and its growth inhibitory role in cervical squamous cell carcinoma. Cancer Cell Int 2017; 17:88. [PMID: 29051711 PMCID: PMC5633880 DOI: 10.1186/s12935-017-0456-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 09/20/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cervical cancer is a major cause of death in women worldwide. Interferon-induced transmembrane protein 1 (IFITM1) is involved in antivirus defense, cell adhesion, and carcinogenesis in different tissues. However, the role of IFITM1 gene in cervical squamous cell cancer is unclear. METHODS To explore the role of IFITM1 in carcinogenesis of cervical cancer, we investigated the expression of IFITM1 gene in cervical squamous cell carcinoma. IFITM1 mRNA level was measured by real-time quantitative RT-PCR in cervical cancer tissues and their adjacent normal tissues. IFITM1 protein level was measured by immunohistochemistry. Methylation in the IFITM1 gene promoter was detected by methylation-specific PCR. We then transfected HeLa cells with IFITM1 expression vector or control vector. IFITM1 expression was examined; cell migration and invasion were analyzed by wound healing assay and matrigel-coated transwell migration assays, respectively. HeLa cell proliferation was measured by cell counting kit-8 assay and cell cycle analysis. Cell apoptosis was analyzed by Annexin V/propidium iodide double staining assay. RESULTS The difference in IFITM1 protein expression between samples from chronic cervicitis and cervical carcinoma was statistically significant (P < 0.01). Ki-67 and PCNA protein expression levels were significantly higher in cervical cancer tissues than in their corresponding cervicitis tissues (P < 0.05 and P < 0.001, respectively). IFITM1 mRNA level was significantly lower in cervical cancer tissues than in normal cervical tissues (P < 0.05). Methylation of the IFITM1 gene promoter was significantly higher in cervical cancer than in normal cervical tissues (P < 0.05). Transfection of the IFITM1 pcDNA3.1 construct decreased cell migration and invasion of HeLa cells, inhibited cell proliferation, and increased cell apoptosis. CONCLUSION IFITM1 gene expression may reduce the proliferation, migration, and invasion of cervical squamous cancer cells.
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Affiliation(s)
- Weinan Zheng
- Department of Biochemistry and Molecular Biology, Department of Human Anatomy and Histology and Embryology, Basic Medical Science of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China.,Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, 832002 Xinjiang China
| | - Zhimin Zhao
- Department of Biochemistry and Molecular Biology, Department of Human Anatomy and Histology and Embryology, Basic Medical Science of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China.,Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, 832002 Xinjiang China
| | - Xinan Yi
- Department of Human Anatomy, Basic Medical Science Division, Hainan Medical University, Haikou, 571100 Hainan China
| | - Qiangqiang Zuo
- Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, 832002 Xinjiang China
| | - Hongtao Li
- Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, 832002 Xinjiang China
| | - Xiaoqing Guo
- Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, 832002 Xinjiang China
| | - Dongmei Li
- Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, 832002 Xinjiang China
| | - Hongchang He
- Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, 832002 Xinjiang China
| | - Zemin Pan
- Department of Biochemistry and Molecular Biology, Department of Human Anatomy and Histology and Embryology, Basic Medical Science of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China.,Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, 832002 Xinjiang China.,Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Shihezi, China
| | - Peiwen Fan
- Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, 832002 Xinjiang China
| | - Feng Li
- Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, 832002 Xinjiang China
| | - Yanhong Liao
- Department of Biochemistry and Molecular Biology, Department of Human Anatomy and Histology and Embryology, Basic Medical Science of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
| | - Renfu Shao
- Genecology Research Centre, Centre for Animal Health Innovation, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore, DC, QLD 4558 Australia
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13
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Xi J, Chen J, Xu M, Yang H, Luo J, Pan Y, Wang X, Qiu L, Yang J, Sun Q. Genetic variability and functional implication of the long control region in HPV-16 variants in Southwest China. PLoS One 2017; 12:e0182388. [PMID: 28767682 PMCID: PMC5540483 DOI: 10.1371/journal.pone.0182388] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 07/17/2017] [Indexed: 01/04/2023] Open
Abstract
HPV-16 long control region (LCR) has been shown to be the most variable region of the HPV-16 genome and may play important roles in viral persistence and the development of cervical cancer. This study aimed to assess the risk of HPV-16 LCR variants for cervical cancer in women of Southwest China. 2146 cervical scrapings of volunteer outpatients and 74 cervical cancer tissues were screened.14 entire HPV-16 LCRs from asymptomatic carriers and 34 entire HPV-16 LCRs from cervical cancer patients were successfully amplified and sequenced to align to others described. 58 different point mutations were detected in 54 nucleotide sites of HPV-16 LCR. G7193T and G7521A variants, accounting for 100% of the infections, were predicted to locate at the binding site for FOXA1 and SOX9, respectively. A7730C variant which showed a high mutation frequency in cervical cancer was predicted to be a binding site for the cellular transcription factor PHOX2A. In addition, phylogenetic analysis displayed a high prevalence of A lineage in HPV-16 LCR in this Southwest China population. This study may help understanding of the intrinsic geographical relatedness and the correlations between LCR mutations and the development of carcinogenic lesions in Southwest China population. And it provides useful data for the further study of the biological function of HPV-16 LCR variants.
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Affiliation(s)
- Juemin Xi
- Institute of Medical Biology, Chinese Academy of Medical Sciences, and Peking Union Medical College, Kunming, People's Republic of China
- Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, People's Republic of China
- Yunnan Key Laboratory of Vector-borne Infectious Disease, Kunming, People's Republic of China
| | - Junying Chen
- Institute of Medical Biology, Chinese Academy of Medical Sciences, and Peking Union Medical College, Kunming, People's Republic of China
- Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, People's Republic of China
- Yunnan Key Laboratory of Vector-borne Infectious Disease, Kunming, People's Republic of China
| | - Miaoling Xu
- The First Affiliated Hospital of Kunming Medical University, Kunming, People's Republic of China
| | - Hongying Yang
- The Third Affiliated Hospital of Kunming Medical University, Yunnan Provincial Tumor Hospital, Kunming, People's Republic of China
| | - Jia Luo
- Institute of Medical Biology, Chinese Academy of Medical Sciences, and Peking Union Medical College, Kunming, People's Republic of China
- Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, People's Republic of China
- Yunnan Key Laboratory of Vector-borne Infectious Disease, Kunming, People's Republic of China
- Kunming Medical University, Kunming, People's Republic of China
| | - Yue Pan
- Institute of Medical Biology, Chinese Academy of Medical Sciences, and Peking Union Medical College, Kunming, People's Republic of China
- Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, People's Republic of China
- Yunnan Key Laboratory of Vector-borne Infectious Disease, Kunming, People's Republic of China
| | - Xiaodan Wang
- Institute of Medical Biology, Chinese Academy of Medical Sciences, and Peking Union Medical College, Kunming, People's Republic of China
- Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, People's Republic of China
- Yunnan Key Laboratory of Vector-borne Infectious Disease, Kunming, People's Republic of China
| | - Lijuan Qiu
- Institute of Medical Biology, Chinese Academy of Medical Sciences, and Peking Union Medical College, Kunming, People's Republic of China
- Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, People's Republic of China
- Yunnan Key Laboratory of Vector-borne Infectious Disease, Kunming, People's Republic of China
| | - Jiajia Yang
- Institute of Medical Biology, Chinese Academy of Medical Sciences, and Peking Union Medical College, Kunming, People's Republic of China
- Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, People's Republic of China
- Yunnan Key Laboratory of Vector-borne Infectious Disease, Kunming, People's Republic of China
| | - Qiangming Sun
- Institute of Medical Biology, Chinese Academy of Medical Sciences, and Peking Union Medical College, Kunming, People's Republic of China
- Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, People's Republic of China
- Yunnan Key Laboratory of Vector-borne Infectious Disease, Kunming, People's Republic of China
- * E-mail:
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14
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Fu Y, Zhou Z, Wang H, Gong P, Guo R, Wang J, Lu X, Qi F, Liu L. IFITM1 suppresses expression of human endogenous retroviruses in human embryonic stem cells. FEBS Open Bio 2017; 7:1102-1110. [PMID: 28781951 PMCID: PMC5537067 DOI: 10.1002/2211-5463.12246] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Accepted: 05/15/2017] [Indexed: 12/03/2022] Open
Abstract
Interferon‐induced transmembrane protein 1 (IFITM1), a member of the IFITM protein family, is a component of a multimeric complex involved in the transduction of antiproliferation and cell adhesion signals. IFITM1 is thought to play a role in antiproliferation and immune surveillance, and has been shown to restrict infection by numerous viruses. It is highly expressed in human embryonic stem cells (hESCs) but its role in hESCs remains to be elucidated. In this study, knockout of IFITM1 mediated by CRISPR/Cas9 in hESCs did not affect self‐renewal, pluripotency, telomerase activity or telomeres. However expression of human endogenous retroviruses (HERVs) was higher than in wild‐type hESCs, and there was also a reduced level of trimethylation of histone H3 on lysine 9 at HERV loci. These data show that IFITM1 suppresses HERVs in hESCs by regulating epigenetic modifications.
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Affiliation(s)
- Yudong Fu
- State Key Laboratory of Medicinal Chemical Biology College of Life Sciences Nankai University Tianjin China.,Department of Cell Biology and Genetics College of Life Sciences Nankai University Tianjin China
| | - Zhongcheng Zhou
- State Key Laboratory of Medicinal Chemical Biology College of Life Sciences Nankai University Tianjin China.,Department of Cell Biology and Genetics College of Life Sciences Nankai University Tianjin China
| | - Hua Wang
- State Key Laboratory of Medicinal Chemical Biology College of Life Sciences Nankai University Tianjin China.,Department of Cell Biology and Genetics College of Life Sciences Nankai University Tianjin China
| | - Peng Gong
- State Key Laboratory of Medicinal Chemical Biology College of Life Sciences Nankai University Tianjin China.,Department of Cell Biology and Genetics College of Life Sciences Nankai University Tianjin China
| | - Renpeng Guo
- State Key Laboratory of Medicinal Chemical Biology College of Life Sciences Nankai University Tianjin China.,Department of Cell Biology and Genetics College of Life Sciences Nankai University Tianjin China
| | - Jinmiao Wang
- Department of General Surgery Tianjin Medical University General Hospital China
| | - Xinyi Lu
- State Key Laboratory of Medicinal Chemical Biology College of Life Sciences Nankai University Tianjin China.,College of Pharmacy Nankai University Tianjin China
| | - Feng Qi
- Department of General Surgery Tianjin Medical University General Hospital China
| | - Lin Liu
- State Key Laboratory of Medicinal Chemical Biology College of Life Sciences Nankai University Tianjin China.,Department of Cell Biology and Genetics College of Life Sciences Nankai University Tianjin China
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15
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Lui AJ, Geanes ES, Ogony J, Behbod F, Marquess J, Valdez K, Jewell W, Tawfik O, Lewis-Wambi J. IFITM1 suppression blocks proliferation and invasion of aromatase inhibitor-resistant breast cancer in vivo by JAK/STAT-mediated induction of p21. Cancer Lett 2017; 399:29-43. [PMID: 28411130 DOI: 10.1016/j.canlet.2017.04.005] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 03/23/2017] [Accepted: 04/04/2017] [Indexed: 12/19/2022]
Abstract
Interferon induced transmembrane protein 1 (IFITM1) belongs to a family of interferon stimulated genes (ISGs) that is associated with tumor progression and DNA damage resistance; however, its role in endocrine resistance is not known. Here, we correlate IFITM1 expression with clinical stage and poor response to endocrine therapy in a tissue microarray consisting of 94 estrogen receptor (ER)-positive breast tumors. IFITM1 overexpression is confirmed in the AI-resistant MCF-7:5C cell line and not found in AI-sensitive MCF-7 cells. In this study, the orthotopic (mammary fat pad) and mouse mammary intraductal (MIND) models of breast cancer are used to assess tumor growth and invasion in vivo. Lentivirus-mediated shRNA knockdown of IFITM1 in AI-resistant MCF-7:5C cells diminished tumor growth and invasion and induced cell death, whereas overexpression of IFITM1 in wild-type MCF-7 cells promoted estrogen-independent growth and enhanced their aggressive phenotype. Mechanistic studies indicated that loss of IFITM1 in MCF-7:5C cells markedly increased p21 transcription, expression and nuclear localization which was mediated by JAK/STAT activation. These findings suggest IFITM1 overexpression contributes to breast cancer progression and that targeting IFITM1 may be therapeutically beneficial to patients with endocrine-resistant disease.
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Affiliation(s)
- Asona J Lui
- Department of Molecular and Integrative Physiology, University of Kansas Medical Center, USA; The University of Kansas Cancer Center, Kansas City, KS 66160, USA.
| | - Eric S Geanes
- Department of Cancer Biology, University of Kansas Medical Center, USA; The University of Kansas Cancer Center, Kansas City, KS 66160, USA.
| | - Joshua Ogony
- Department of Cancer Biology, University of Kansas Medical Center, USA; The University of Kansas Cancer Center, Kansas City, KS 66160, USA.
| | - Fariba Behbod
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, USA; The University of Kansas Cancer Center, Kansas City, KS 66160, USA.
| | - Jordan Marquess
- University of Kansas Medical Center School of Medicine, USA.
| | - Kelli Valdez
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, USA; The University of Kansas Cancer Center, Kansas City, KS 66160, USA.
| | - William Jewell
- The University of Kansas Cancer Center, Kansas City, KS 66160, USA.
| | - Ossama Tawfik
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, USA.
| | - Joan Lewis-Wambi
- Department of Cancer Biology, University of Kansas Medical Center, USA; The University of Kansas Cancer Center, Kansas City, KS 66160, USA.
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16
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Variants of human papillomaviruses 16 (HPV16) in Uigur women in Xinjiang, China. Infect Agent Cancer 2016; 11:44. [PMID: 27540411 PMCID: PMC4989296 DOI: 10.1186/s13027-016-0089-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2016] [Accepted: 06/27/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Persistent infection of high-risk human papillomaviruses 16 (HPV16) has been considered as the leading cause of cervical cancer. In this study we assessed HPV16 sequence variation and genetic diversity of HPV16 variants in cervical cancer in Uigur women in Xinjiang, China. We analyzed the nucleotide sequences of the open reading frames of E6 and E7, and part of the open reading frames of L1 of HPV16 in Uigur women. METHODS Biopsies of histologically confirmed HPV16 infections with cervical cancer were obtained from 43 Uigur women in Xinjiang, China. E6, E7 and L1 genes of HPV16 of all samples were amplified and sequenced; the sequences were used in phylogenetic analysis of HPV16 variants. RESULTS Our analysis revealed nine nucleotide changes in E6 (five changes), E7 (one change) and L1 (three changes) gene. The most frequently observed variations were T350G (79.1 %). One variation T295G (D64E) at E6 were detected in 6 cases (KT959536, KT959542, KT959546, KT959550, KT959553, KT959558). Deletion (464Asp) along with insertion (448Ser) were observed in L1 (100 %). Most variants were European lineage (97.7 %); only one belongs to Asia variants with common T178G (D25E) in E6 and A647G (N29S) in E7. CONCLUSION The most prevalent HPV16 variants in the Uigur women we studied were of the European lineage. Our results indicate that HPV16 European lineage may serve as a harmful factor associated with the development and progression of cervical cancer.
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17
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Torabi A, Ordonez J, Su BB, Palmer L, Mao C, Lara KE, Rubin LP, Xu C. Novel Somatic Copy Number Alteration Identified for Cervical Cancer in the Mexican American Population. Med Sci (Basel) 2016; 4:medsci4030012. [PMID: 29083376 PMCID: PMC5635801 DOI: 10.3390/medsci4030012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 07/15/2016] [Accepted: 07/25/2016] [Indexed: 01/12/2023] Open
Abstract
Cervical cancer affects millions of Americans, but the rate for cervical cancer in the Mexican American is approximately twice that for non-Mexican Americans. The etiologies of cervical cancer are still not fully understood. A number of somatic mutations, including several copy number alterations (CNAs), have been identified in the pathogenesis of cervical carcinomas in non-Mexican Americans. Thus, the purpose of this study was to investigate CNAs in association with cervical cancer in the Mexican American population. We conducted a pilot study of genome-wide CNA analysis using 2.5 million markers in four diagnostic groups: reference (n = 125), low grade dysplasia (cervical intraepithelial neoplasia (CIN)-I, n = 4), high grade dysplasia (CIN-II and -III, n = 5) and invasive carcinoma (squamous cell carcinoma (SCC), n = 5) followed by data analyses using Partek. We observed a statistically-significant difference of CNA burden between case and reference groups of different sizes (>100 kb, 10-100 kb and 1-10 kb) of CNAs that included deletions and amplifications, e.g., a statistically-significant difference of >100 kb deletions was observed between the reference (6.6%) and pre-cancer and cancer (91.3%) groups. Recurrent aberrations of 98 CNA regions were also identified in cases only. However, none of the CNAs have an impact on cancer progression. A total of 32 CNA regions identified contained tumor suppressor genes and oncogenes. Moreover, the pathway analysis revealed endometrial cancer and estrogen signaling pathways associated with this cancer (p < 0.05) using Kyoto Encyclopedia of Genes and Genomes (KEGG). This is the first report of CNAs identified for cervical cancer in the U.S. Latino population using high density markers. We are aware of the small sample size in the study. Thus, additional studies with a larger sample are needed to confirm the current findings.
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Affiliation(s)
- Alireza Torabi
- Department of Pathology, TTUHSC, El Paso 79905, TX, USA.
| | - Javier Ordonez
- Department of Biomedical Science, TTUHSC, El Paso 79905, TX, USA.
| | - Brenda Bin Su
- Department of Internal Medicine, College of Medicine and Health Sciences, UAE University, Al-Ain 15551, UAE.
| | - Laura Palmer
- Department of Pediatrics, Texas Tech University Health Sciences Center (TTUHSC), El Paso 79905, TX, USA.
| | - Chunxiang Mao
- Department of Pediatrics, Texas Tech University Health Sciences Center (TTUHSC), El Paso 79905, TX, USA.
| | - Katherine E Lara
- Department of Pediatrics, Texas Tech University Health Sciences Center (TTUHSC), El Paso 79905, TX, USA.
| | - Lewis P Rubin
- Department of Pediatrics, Texas Tech University Health Sciences Center (TTUHSC), El Paso 79905, TX, USA.
| | - Chun Xu
- Department of Pediatrics, Texas Tech University Health Sciences Center (TTUHSC), El Paso 79905, TX, USA.
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18
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Borg D, Hedner C, Gaber A, Nodin B, Fristedt R, Jirström K, Eberhard J, Johnsson A. Expression of IFITM1 as a prognostic biomarker in resected gastric and esophageal adenocarcinoma. Biomark Res 2016; 4:10. [PMID: 27186374 PMCID: PMC4867989 DOI: 10.1186/s40364-016-0064-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 05/04/2016] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND There is an increasing amount of reports on IFITM1 (interferon-inducible transmembrane protein 1) in various malignancies. The aim of this study was to examine the expression of IFITM1 and its prognostic significance in gastroesophageal adenocarcinoma. METHODS Tissue samples were obtained from a consecutive cohort of 174 patients surgically treated between 2006 and 2010 for gastroesophageal (gastric, gastroesophageal junction and esophageal) adenocarcinoma, not subjected to neoadjuvant therapy. Expression of IFITM1 was examined using immunohistochemistry on tissue microarrays of primary tumors and paired samples of adjacent normal epithelium, intestinal metaplasia and lymph node metastases. RESULTS Expression of IFITM1 was significantly elevated in primary tumors and lymph node metastases compared to adjacent normal epithelium and intestinal metaplasia, regardless of tumor location. Overexpression of IFITM1 was associated with M0-disease (no distant metastases). In gastric cancer IFITM1 expression was significantly associated with improved TTR (time to recurrence) in Kaplan-Meier analysis and Cox regression, both in the unadjusted analysis (HR 0.33, 95 % CI 0.12-0.88) and in the adjusted analysis (HR 0.32, 95 % CI 0.12-0.87) but there was no significant impact on OS (overall survival). In esophageal adenocarcinoma expression of IFITM1 had no impact on TTR or OS in Kaplan-Meier-analyses, but in the adjusted Cox regression IFITM1 expression had a negative impact on both TTR (HR 3.05, 95 % CI 1.09-8.53) and OS (HR 2.71, 95 % CI 1.11-6.67). CONCLUSIONS IFITM1 was overexpressed in gastroesophageal adenocarcinoma and associated with M0-disease. In gastric cancer IFITM1 expression had a positive impact on TTR but in esophageal cancer it seemed to have an adverse impact on survival. The reason for the diverging prognostic impact of IFITM1 in esophageal and gastric cancer is unclear and warrants further studies.
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Affiliation(s)
- David Borg
- Department of Clinical Sciences Lund, Division of Oncology and Pathology, Lund University, Skåne University Hospital, 221 85 Lund, Sweden
| | - Charlotta Hedner
- Department of Clinical Sciences Lund, Division of Oncology and Pathology, Lund University, Skåne University Hospital, 221 85 Lund, Sweden
| | - Alexander Gaber
- Department of Clinical Sciences Lund, Division of Oncology and Pathology, Lund University, Skåne University Hospital, 221 85 Lund, Sweden
| | - Björn Nodin
- Department of Clinical Sciences Lund, Division of Oncology and Pathology, Lund University, Skåne University Hospital, 221 85 Lund, Sweden
| | - Richard Fristedt
- Department of Clinical Sciences Lund, Division of Oncology and Pathology, Lund University, Skåne University Hospital, 221 85 Lund, Sweden
| | - Karin Jirström
- Department of Clinical Sciences Lund, Division of Oncology and Pathology, Lund University, Skåne University Hospital, 221 85 Lund, Sweden
| | - Jakob Eberhard
- Department of Clinical Sciences Lund, Division of Oncology and Pathology, Lund University, Skåne University Hospital, 221 85 Lund, Sweden
| | - Anders Johnsson
- Department of Clinical Sciences Lund, Division of Oncology and Pathology, Lund University, Skåne University Hospital, 221 85 Lund, Sweden
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Ogony J, Choi HJ, Lui A, Cristofanilli M, Lewis-Wambi J. Interferon-induced transmembrane protein 1 (IFITM1) overexpression enhances the aggressive phenotype of SUM149 inflammatory breast cancer cells in a signal transducer and activator of transcription 2 (STAT2)-dependent manner. Breast Cancer Res 2016; 18:25. [PMID: 26897526 PMCID: PMC4761146 DOI: 10.1186/s13058-016-0683-7] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 02/03/2016] [Indexed: 12/31/2022] Open
Abstract
Background Inflammatory breast cancer (IBC) is a very aggressive and lethal subtype of breast cancer that accounts for about 4 % of all breast cancers diagnosed in the United States. Despite the efforts of several investigators to identify the molecular factors driving the aggressive phenotype of IBC, a great deal is still unknown about the molecular underpinnings of the disease. In the present study, we investigated the role of interferon-induced transmembrane protein 1 (IFITM1), a well-known interferon-stimulated gene (ISG), in promoting the aggressiveness of SUM149 IBC cells. Methods Western blot and real-time polymerase chain reaction analyses were performed to assess the protein and messenger RNA (mRNA) levels of IFITM1 and other ISGs in three IBC cell lines: SUM149, MDA-IBC-3, and SUM190. IFITM1 expression and cellular localization were assessed by using immunofluorescence, while the tumorigenic potential was assessed by performing cell migration, invasion, and colony formation assays. Small interfering RNA and short hairpin RNA knockdowns, enzyme-linked immunosorbent assays, and luciferase assays were performed to determine the functional significance of IFITM1 and signal transducers and activators of transcription 1 and 2 (STAT1/2) in SUM149 cells. Results We found that IFITM1 was constitutively overexpressed at the mRNA and protein levels in triple-negative SUM149 IBC cells, but that it was not expressed in SUM190 and MDA-IBC-3 IBC cells, and that suppression of IFITM1 or blockade of the IFNα signaling pathway significantly reduced the aggressive phenotype of SUM149 cells. Additionally, we found that knockdown of STAT2 abolished IFITM1 expression and IFITM1 promoter activity in SUM149 cells and that loss of STAT2 significantly inhibited the ability of SUM149 cells to proliferate, migrate, invade, and form 2-D colonies. Notably, we found that STAT2-mediated activation of IFITM1 was particularly dependent on the chromatin remodeler brahma-related gene 1 (BRG1), which was significantly elevated in SUM149 cells compared with SUM190 and MDA-IBC-3 cells. Conclusions These findings indicate that overexpression of IFITM1 enhances the aggressive phenotype of triple-negative SUM149 IBC cells and that this effect is dependent on STAT2/BRG1 interaction. Further studies are necessary to explore the potential of IFITM1 as a novel therapeutic target and prognostic marker for some subtypes of IBCs. Electronic supplementary material The online version of this article (doi:10.1186/s13058-016-0683-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Joshua Ogony
- Department of Cancer Biology, University of Kansas Medical Center, Kansas City, KS, USA.
| | - Hye Joung Choi
- Department of Cancer Biology, University of Kansas Medical Center, Kansas City, KS, USA.
| | - Asona Lui
- Department of Cancer Biology, University of Kansas Medical Center, Kansas City, KS, USA. .,Department of Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, KS, USA.
| | | | - Joan Lewis-Wambi
- Department of Cancer Biology, University of Kansas Medical Center, Kansas City, KS, USA.
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IFITM1 promotes the metastasis of human colorectal cancer via CAV-1. Cancer Lett 2015; 368:135-143. [DOI: 10.1016/j.canlet.2015.07.034] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 07/30/2015] [Accepted: 07/31/2015] [Indexed: 11/21/2022]
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Pesce ER, Blatch GL, Edkins AL. Hsp40 Co-chaperones as Drug Targets: Towards the Development of Specific Inhibitors. TOPICS IN MEDICINAL CHEMISTRY 2015. [DOI: 10.1007/7355_2015_92] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Methylation in the promoters of HS3ST2 and CCNA1 genes is associated with cervical cancer in Uygur women in Xinjiang. Int J Biol Markers 2014; 29:e354-62. [PMID: 25198553 DOI: 10.5301/jbm.5000107] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/02/2014] [Indexed: 01/09/2023]
Abstract
We assessed the suitability of HS3ST2 and CCNA1 genes as biomarkers for the early detection of cervical cancer in Uygur women in Xinjiang, China. Methylation-specific PCR (MSP) and HPV (HPV16 and HPV18)-specific PCR were performed on 110 cervical samples: 40 normal cervices, 10 cervical intraepithelial neoplasia 1 (CIN1), 10 CIN2, 10 CIN3 and 40 cervical cancer tissues. The expression of the 2 genes was measured by reverse transcription PCR (RT-PCR) in 10 methylation-positive and 10 methylation-negative cervical tissues. We found that both HS3ST2 and CCNA1 genes were methylated in 38 of the 40 cervical cancer tissues, 9 of the 10 CIN3, and 6 of the 10 CIN2. In contrast, methylation of these 2 genes was found in only 1 of the 40 normal tissues and none of 10 CIN1. Furthermore, hypermethylated HS3ST2 and CCNA1 genes were correlated with infection with HPV16 and HPV18 in high-grade squamous intraepithelial lesions (HSILs) and cervical cancer (both p<0.05). The expression of HS3ST2 and CCNA1 genes was lower in the methylation-positive cervical tissues than in the methylation-negative cervical tissues. Our results indicate that HS3ST2 and CCNA1 genes may play important roles in HPV-induced cervical cancer and that patients with specific hypermethylated genes may have a greater risk of progressing to invasive cervical cancer.
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Pan Z, Zheng W, Zhang J, Gao R, Li D, Guo X, Han H, Li F, Qu S, Shao R. Down-regulation of the expression of CCAAT/enhancer binding protein α gene in cervical squamous cell carcinoma. BMC Cancer 2014; 14:417. [PMID: 24913332 PMCID: PMC4070097 DOI: 10.1186/1471-2407-14-417] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2013] [Accepted: 05/22/2014] [Indexed: 01/11/2023] Open
Abstract
Background Cervical carcinoma is the second most common cancer and is an important cause of death in women worldwide. CCAAT/enhancer binding proteins (C/EBPs) are a family of transcription factors that regulate cellular differentiation and proliferation in a variety of tissues. However, the role of C/EBPα gene in cervical cancer is still not clear. Methods We investigated the expression of C/EBPα gene in cervical squamous cell carcinoma. C/EBPα mRNA level was measured by real-time quantitative RT-PCR in cervical cancer tissues and their adjacent normal tissues. C/EBPα protein level was measured by immunohistochemistry. Methylation in the promoter of C/EBPα gene was detected by MALDI TOF MassARRAY. We transfected HeLa cells with C/EBPα expression vector. C/EBPα expression in HeLa cells was examined and HeLa cell proliferation was measured by MTT assay and HeLa cells migration was analyzed by matrigel-coated transwell migration assays. Results There were significant difference in C/EBPα protein expression between chronic cervicitis and cervical carcinoma (P < 0.001). CEBPα mRNA level was significantly lower in cervical cancer tissues than in normal cervical tissues (P < 0.01). Methylation of the promoter of CEBPα gene in CpG 5, CpG-14.15, CpG-19.20 were significantly higher in cervical cancer than in normal cervical tissues (P < 0.05, P < 0.01, P < 0.05, respectively). CEBPα pcDNA3.1 construct transfected into HeLa cells inhibited cell proliferation and decreased cell migration. Conclusions Our results indicate that reduced C/EBPα gene expression may play a role in the development of cervical squamous cell carcinoma.
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Affiliation(s)
- Zemin Pan
- Department of Biochemistry and Molecular Biology, School of Medicine, Shihezi University, Xinjiang Endemic and Ethnic Disease and Education Ministry Key Laboratory, Shihezi, Xinjiang 832002, China.
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Kim BS, Kim HJ, Kim JS, You YO, Zadeh H, Shin HI, Lee SJ, Park YJ, Takata T, Pi SH, Lee J, You HK. IFITM1 increases osteogenesis through Runx2 in human alveolar-derived bone marrow stromal cells. Bone 2012; 51:506-14. [PMID: 22634173 DOI: 10.1016/j.bone.2012.05.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Revised: 02/20/2012] [Accepted: 05/16/2012] [Indexed: 11/27/2022]
Abstract
The exact molecular mechanisms governing the differentiation of bone marrow stromal stem/progenitor cells (BMSCs) into osteoblasts remain largely unknown. In this study, a highly expressed protein that had a high degree of homology with interferon-induced transmembrane protein 1 (IFITM1) was identified using differentially expressed gene (DEG) screening. We sought to determine whether IFITM1 influenced osteoblast differentiation. During differentiation, IFITM1 expression gradually increased from 5 to 10days and subsequently decreased at 15 days in culture. Analysis of IFITM1 protein expression in several cell lines as well as in situ studies on human tissues revealed its selective expression in bone cells and human bone. Proliferation of human alveolar-derived bone marrow stromal cells (hAD-BMSCs) was significantly inhibited by IFITM1 knockdown by using short hairpin RNA, as were bone specific markers such as alkaline phosphatase, collagen type I α 1, bone sialoprotein, osteocalcin, and osterix were decreased. Calcium accumulation also decreased following IFITM1 knockdown. Moreover, IFITM1 knockdown in hAD-BMSCs was associated with inhibition of Runx2 mRNA and protein expression. Collectively, the present data provide evidence for the role of IFITM1 in osteoblast differentiation. The exact mechanisms of IFITM1's involvement in osteoblast differentiation are still under investigation.
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Affiliation(s)
- Beom-Su Kim
- Department of Periodontology, School of Dentistry, Wonkwang University, Iksan, Jeonbuk, South Korea
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Overexpression of IFITM1 has clinicopathologic effects on gastric cancer and is regulated by an epigenetic mechanism. THE AMERICAN JOURNAL OF PATHOLOGY 2012; 181:43-52. [PMID: 22609115 DOI: 10.1016/j.ajpath.2012.03.027] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2011] [Revised: 01/10/2012] [Accepted: 03/15/2012] [Indexed: 12/12/2022]
Abstract
In an effort to identify novel genes related to the prognosis of gastric cancer, we performed gene expression profiling and found overexpressed levels of human interferon-induced transmembrane protein 1 (IFITM1). We validated the gastric cancer-specific up-regulation of IFITM1 and its association with cancer progression. We also studied its epigenetic regulation and tumorigenesis-related functions. Expression of IFITM1 was evaluated in various human gastric cancer cells and in 35 patient tumor tissues by quantitative RT-PCR and Western blot analyses. The results showed highly up-regulated IFITM1 in cancer cell lines and tissues. Furthermore, IHC studies were performed on 151 patient tissues, and a significant correlation was revealed between higher IFITM1 expression and Lauren's intestinal type (P = 0.007) and differentiated adenocarcinoma (P = 0.025). Quantitative studies of DNA methylation for 27 CpG sites in the regulatory region showed hypermethylation in cells expressing low levels of IFITM1. Methylation-dependent IFITM1 expression was confirmed further by in vitro demethylation using 5-aza-2'-deoxycytidine and luciferase assays. The functional analysis of IFITM1 by silencing of its expression with small-interfering RNA showed decreased migration and invasiveness of cancer cells, whereas its overexpression exhibited the opposite results. In this study, we demonstrated gastric cancer-specific overexpression of IFITM1 regulated by promoter methylation and the role of IFITM1 in cancer prognosis.
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Almiñana C, Fazeli A. Exploring the application of high-throughput genomics technologies in the field of maternal-embryo communication. Theriogenology 2012; 77:717-37. [PMID: 22217573 DOI: 10.1016/j.theriogenology.2011.11.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2011] [Revised: 08/30/2011] [Accepted: 09/02/2011] [Indexed: 01/23/2023]
Abstract
Deciphering the complex molecular dialogue between the maternal tract and embryo is crucial to increasing our understanding of pregnancy failure, infertility problems and in the modulation of embryo development, which has consequences through adulthood. High-throughput genomic technologies have been applied to look for a holistic view of the molecular interactions occurring during this dialogue. Among these technologies, microarrays have been widely used, being one of the most popular tools in maternal-embryo communication. Today, next generation sequencing technologies are dwarfing the capabilities of microarrays. The application of these new technologies has broadened to almost all areas of genomics research, because of their massive sequencing capacity. We review the current status of high-throughput genomic technologies and their application to maternal-embryo communication research. We also survey next generation technologies and their huge potential in many research areas. Given the diversity of unanswered questions in the field of maternal-embryo communication and the wide range of possibilities that these technologies offer, here we discuss future perspectives on the use of these technologies to enhance maternal-embryo research.
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Affiliation(s)
- Carmen Almiñana
- Academic Unit of Reproductive and Development Medicine, University of Sheffield, Sheffield, UK.
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Li D, Peng Z, Tang H, Wei P, Kong X, Yan D, Huang F, Li Q, Le X, Li Q, Xie K. KLF4-mediated negative regulation of IFITM3 expression plays a critical role in colon cancer pathogenesis. Clin Cancer Res 2011; 17:3558-68. [PMID: 21531817 DOI: 10.1158/1078-0432.ccr-10-2729] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE IFITM3, an IFN-inducible gene, is overexpressed in human colorectal cancer. In this study, we sought to determine the clinical significance and underlying mechanisms of its dysregulated expression in human colon tumor specimens and murine models of this disease. EXPERIMENTAL DESIGN IFITM3 expression in a tissue microarray of tumor and matched normal colon tissue specimens and lymph node metastasis specimens obtained from 203 patients with colon cancer was measured immunohistochemically. RESULTS IFITM3 was expressed at higher levels in colon tumors and, particularly, nodal metastases than in normal colon tissue. A Cox proportional hazards model showed that IFITM3 expression was an independent prognostic factor for disease-free survival in patients with colon cancer. Knockdown of IFITM3 expression by a specific siRNA significantly suppressed the proliferation, colony formation, migration, and invasion of colon cancer cells in vitro and tumor growth and metastasis in a xenograft model. Restored expression of KLF4, a putative tumor suppressor, downregulated IFITM3 expression in colon cancer cells in vitro. Two KLF4-binding sites in the IFITM3 promoter bound specifically to KLF4 protein in a chromatin immunoprecipitation assay and promoter mutagenesis analyses. Specific deletion of KLF4 led to IFITM3 overexpression in colon mucosa in Villin-Cre(+);Klf4(fl/fl) mice. An inverse correlation between loss of KLF4 expression and IFITM3 overexpression was evident in human colon tumors. CONCLUSION These clinical and mechanistic findings indicate that IFITM3 is a direct transcriptional target of KLF4 and that dysregulated KLF4 expression leads to aberrant IFITM3 expression, thus contributing to colon cancer progression and metastasis.
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Affiliation(s)
- Dawei Li
- Departments of General Surgery and Pathology, Shanghai Jiaotong University Affiliated First People's Hospital, Shanghai, PR China
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Yu F, Ng SSM, Chow BKC, Sze J, Lu G, Poon WS, Kung HF, Lin MCM. Knockdown of interferon-induced transmembrane protein 1 (IFITM1) inhibits proliferation, migration, and invasion of glioma cells. J Neurooncol 2010; 103:187-95. [PMID: 20838853 PMCID: PMC3097340 DOI: 10.1007/s11060-010-0377-4] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2010] [Accepted: 08/19/2010] [Indexed: 11/26/2022]
Abstract
Interferon-induced transmembrane protein 1 (IFITM1) has recently been identified as a new molecular marker in human colorectal cancer. However, its role in glioma carcinogenesis is not known. In this study, we demonstrated that suppression of IFITM1 expression significantly inhibited proliferation of glioma cells in a time-dependent manner. The growth inhibitory effect was mediated by cell cycle arrest. Furthermore, IFITM1 knockdown significantly inhibited migration and invasion of glioma cells, which could be attributed to decreased expression and enzymatic activity of matrix metalloproteinase 9. Taken together, these results suggest that IFITM1 is a potential therapeutic target for gliomas.
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Affiliation(s)
- Fang Yu
- Brain Tumour Center, The Chinese University of Hong Kong, Shatin, Hong Kong, China
- Department of Pathology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Department of Chemistry, The University of Hong Kong, Hong Kong, China
| | - Samuel S. M. Ng
- School of Biological Sciences, The University of Hong Kong, Hong Kong, China
| | - Billy K. C. Chow
- School of Biological Sciences, The University of Hong Kong, Hong Kong, China
| | - Johnny Sze
- Department of Chemistry, The University of Hong Kong, Hong Kong, China
| | - Gang Lu
- Brain Tumour Center, The Chinese University of Hong Kong, Shatin, Hong Kong, China
- Division of Neurosurgery, Department of Surgery, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Wai Sang Poon
- Brain Tumour Center, The Chinese University of Hong Kong, Shatin, Hong Kong, China
- Division of Neurosurgery, Department of Surgery, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Hsiang-Fu Kung
- Stanley Ho Center for Emerging Infectious Diseases, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Marie C. M. Lin
- Brain Tumour Center, The Chinese University of Hong Kong, Shatin, Hong Kong, China
- Division of Neurosurgery, Department of Surgery, The Chinese University of Hong Kong, Shatin, Hong Kong, China
- Department of Chemistry, The University of Hong Kong, Hong Kong, China
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