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Jun SY, Hong SM, Jang KT. Prognostic Significance of Cyclin D1 Expression in Small Intestinal Adenocarcinoma. Cancers (Basel) 2023; 15:5032. [PMID: 37894399 PMCID: PMC10604933 DOI: 10.3390/cancers15205032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/08/2023] [Accepted: 10/14/2023] [Indexed: 10/29/2023] Open
Abstract
Cyclin D1, a critical cyclin-dependent kinase (CDK) 4/6-dependent regulator of G1/S transition, has attracted much interest as a therapeutic target. The cyclin D1 expression in small intestinal adenocarcinomas (SIACs) has not yet been comprehensively studied, owing to the rarity of this tumor. We investigated the clinicopathological and prognostic significance of the cyclin D1 expression in 232 surgically resected primary SIACs through a multi-institutional study. A high expression of cyclin D1 (cyclin D1High) was detected in 145 SIAC cases (63%), which was significantly higher than that in normal small intestinal mucosa (11%). Cyclin D1High was more commonly found in SIACs with a lower T-category and disease stage and KRAS mutation and predicted better patient survival. Multivariate analysis revealed that cyclin D1High, the absence of retroperitoneal seeding and lymphovascular invasion, and the lower N-category were identified as independent prognostic indicators for patients with SIACs. Specifically, cyclin D1High affected patient survival in the lower stage group (stages I and II). In conclusion, cyclin D1 was commonly overexpressed in SIACs, and cyclin D1High acted as a favorable prognostic indicator in patients with SIACs. These findings in SIACs may, thus, be important to further comprehend the mechanism of cyclin D1 in carcinogenesis and to strategize appropriate patient therapies.
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Affiliation(s)
- Sun-Young Jun
- Department of Pathology, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 21431, Republic of Korea
| | - Seung-Mo Hong
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea;
| | - Kee-Taek Jang
- Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Republic of Korea;
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2
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Sinha S, Das S, Mohiyuddin SA. Evaluation of Cyclin D1 and Human Epidermal Growth Factor Receptor 2 Neu Protein Expression in Head and Neck Squamous Cell Carcinoma. Cureus 2023; 15:e35526. [PMID: 37007344 PMCID: PMC10058519 DOI: 10.7759/cureus.35526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/27/2023] [Indexed: 03/03/2023] Open
Abstract
Background Head and neck cancers are highly aggressive, frequently occurring cancers that are prevalent worldwide. The mainstay of their treatment is surgery, followed by adjuvant therapy. Various studies have documented the usefulness of molecular markers in carcinogenesis and have proven helpful in the diagnosis and treatment of head and neck cancers. Cyclin D1 is a proto‑oncogene, overexpression of which leads to the accelerated entry of cells in the S phase of the cell cycle, causing uncontrolled proliferation of the cells. The dysregulation of human epidermal growth factor receptor 2 (HER2) neu is also related to multiple features of malignancy, including loss of cell cycle control, induction of angiogenesis, and resistance to apoptotic stimuli. This study seeks to identify a subset of patients with a bad prognosis who may require aggressive treatment strategies. Aim This study aims to determine the proportion of the expression of cyclin D1 and HER2 neu in head and neck squamous cell carcinoma (HNSCC) and analyze the association between the expression of cyclin D1 and HER2 neu using histological grading, tumor, node, and metastasis (TNM) staging, and nodal status of the tumor. Furthermore, this study also aims to document clinical outcomes, such as locoregional control, depth of invasion (DOI), and regional metastasis regarding the expression of cyclin D1 and HER2 neu in HNSCC. Setting and design This study is a laboratory-based observational study. Materials and methods Seventy histologically proven cases of HNSCC were studied for various histopathological parameters, and further immunohistochemistry (IHC) was performed for cyclin D1 and HER2 neu. The expression and intensity of cyclin D1 were multiplied, and the total score was derived. The College of American Pathologists/American Society of Clinical Oncology (CAP/ASCO) guidelines for HER2 neu testing in breast cancer were used for scoring. Result Out of 70 cases, 52 (75%) demonstrated strong and moderate positivity for cyclin D1, and the p-values were 0.017, 0.001, and 0.032 for depth of invasion, TNM stage, and lymph node metastases, respectively, for cyclin D1, which was considered statistically significant. For HER2 neu, five out of 70 cases were positive, and the p-value was significant for depth of invasion (0.008). Conclusion The expression of the above marker cyclin D1 increases with stage, DOI, and positive lymph node status. Hence, cyclin D1 immunoexpression can be helpful in the early assessment of HNSCC behavior and can serve as an independent prognostic marker. Furthermore, it was observed that HER2 neu was significant with an increase in depth of invasion of tumor, which, in the American Joint Committee on Cancer (AJCC) eighth edition, is considered an important factor for determining the stage of the tumor. Further research is needed to examine whether HER2 neu can act as a prognostic factor for HNSCC and if it can be targeted for treatment options.
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3
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Oncogenic dependency on STAT3 serine phosphorylation in KRAS mutant lung cancer. Oncogene 2021; 41:809-823. [PMID: 34857889 DOI: 10.1038/s41388-021-02134-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/15/2021] [Accepted: 11/23/2021] [Indexed: 02/07/2023]
Abstract
The oncogenic potential of the latent transcription factor signal transducer and activator of transcription (STAT)3 in many human cancers, including lung cancer, has been largely attributed to its nuclear activity as a tyrosine-phosphorylated (pY705 site) transcription factor. By contrast, an alternate mitochondrial pool of serine phosphorylated (pS727 site) STAT3 has been shown to promote tumourigenesis by regulating metabolic processes, although this has been reported in only a restricted number of mutant RAS-addicted neoplasms. Therefore, the involvement of STAT3 serine phosphorylation in the pathogenesis of most cancer types, including mutant KRAS lung adenocarcinoma (LAC), is unknown. Here, we demonstrate that LAC is suppressed in oncogenic KrasG12D-driven mouse models engineered for pS727-STAT3 deficiency. The proliferative potential of the transformed KrasG12D lung epithelium, and mutant KRAS human LAC cells, was significantly reduced upon pS727-STAT3 deficiency. Notably, we uncover the multifaceted capacity of constitutive pS727-STAT3 to metabolically reprogramme LAC cells towards a hyper-proliferative state by regulating nuclear and mitochondrial (mt) gene transcription, the latter via the mtDNA transcription factor, TFAM. Collectively, our findings reveal an obligate requirement for the transcriptional activity of pS727-STAT3 in mutant KRAS-driven LAC with potential to guide future therapeutic targeting approaches.
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4
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Goh KY, Lim WT. Cyclin D1 expression in KRAS mutant non-small cell lung cancer-old wine into new skins. Transl Lung Cancer Res 2021; 9:2302-2304. [PMID: 33489791 PMCID: PMC7815367 DOI: 10.21037/tlcr-20-639] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Kah Yee Goh
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore
| | - Wan-Teck Lim
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore.,Office of Academic and Clinical Development, Duke-NUS Medical School, Singapore.,Institute of Molecular and Cell Biology, AStar, Proteos, Singapore
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5
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Montalto FI, De Amicis F. Cyclin D1 in Cancer: A Molecular Connection for Cell Cycle Control, Adhesion and Invasion in Tumor and Stroma. Cells 2020; 9:cells9122648. [PMID: 33317149 PMCID: PMC7763888 DOI: 10.3390/cells9122648] [Citation(s) in RCA: 183] [Impact Index Per Article: 45.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 12/04/2020] [Accepted: 12/06/2020] [Indexed: 12/11/2022] Open
Abstract
Cyclin D1, an important regulator of cell cycle, carries out a central role in the pathogenesis of cancer determining uncontrolled cellular proliferation. In normal cells, Cyclin D1 expression levels are strictly regulated, conversely, in cancer, its activity is intensified in various manners. Different studies demonstrate that CCDN1 gene is amplified in several tumor types considering it as a negative prognostic marker of this pathology. Cyclin D1 is known for its role in the nucleus, but recent clinical studies associate the amount located in the cytoplasmic membrane with tumor invasion and metastasis. Cyclin D1 has also other functions: it governs the expression of specific miRNAs and it plays a crucial role in the tumor-stroma interactions potentiating most of the cancer hallmarks. In the present review, we will summarize the current scientific evidences that highlight the involvement of Cyclin D1 in the pathogenesis of different types of cancer, best of all in breast cancer. We will also focus on recent insights regarding the Cyclin D1 as molecular bridge between cell cycle control, adhesion, invasion, and tumor/stroma/immune-system interplay in cancer.
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Affiliation(s)
- Francesca Ida Montalto
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy;
- Health Center, University of Calabria, 87036 Rende, Italy
| | - Francesca De Amicis
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy;
- Health Center, University of Calabria, 87036 Rende, Italy
- Correspondence: ; Tel.: +39-984-496204
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6
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Luangdilok S, Wanchaijiraboon P, Chantranuwatana P, Teerapakpinyo C, Shuangshoti S, Sriuranpong V. Cyclin D1 expression as a potential prognostic factor in advanced KRAS-mutant non-small cell lung cancer. Transl Lung Cancer Res 2019; 8:959-966. [PMID: 32010574 DOI: 10.21037/tlcr.2019.12.01] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Background East Asian, including Thailand, lung cancer population may have a relatively lower prevalence of KRAS mutations than Caucasians. We investigated the prevalence and clinical characteristics of KRAS-driven non-small cell lung cancer (NSCLC) patients and the expression of cyclin D1, one of the KRAS downstream targets. Methods Lung cancer patients who received treatment at the King Chulalongkorn Memorial Hospital between January 2015 and July 2017 were enrolled. We identified KRAS mutations using allele specific PCR KRAS mutation testing. Cyclin D1 expression was determined using immunohistochemistry. Results After excluding 376 EGFR mutations and inadequate samples, we enrolled 95 patients eligible for KRAS mutation testing. KRAS mutations were identified in 28 out of 95 patients. There were 26 patients with KRAS codon 12/13 and 2 patients with KRAS codon 61 mutations. The prevalence of KRAS mutations among informative samples was 28 out of 357 (7.8%) which was relatively lower than that reported in Caucasian population. Smoking and male were significantly associated with KRAS mutations. The prognosis of KRAS-mutant NSCLC patients in particular codon 61 mutations was worse than that found in KRAS- and EGFR-wild-type (KRAS WT/EGFR WT) NSCLC patients (P=0.048). The levels of cyclin D1 expression in KRAS-mutant NSCLC were significantly higher than those in KRAS WT/EGFR WT NSCLC (P=0.02). A better prognosis of KRAS-mutant NSCLC patients with low cyclin D1 expression was observed when compared with those with high cyclin D1 expression (median overall survival 41.7 vs. 3.5 months, P=0.037). Conclusions We found a moderate prevalence of KRAS mutations in lung cancer in Thailand. Clinical characteristics were similar to those of Caucasian population. Most KRAS-mutant NSCLC had high cyclin D1 expression. Cyclin D1 expression may serve as a useful prognostic biomarker in KRAS-mutant lung cancer. Validation of this finding in larger cohort is required.
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Affiliation(s)
- Sutima Luangdilok
- Department of Biochemistry, Chulalongkorn University and the King Chulalongkorn Memorial Hospital, Bangkok, Thailand.,Division of Medical Oncology, Department of Medicine, Chulalongkorn University and the King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Passakorn Wanchaijiraboon
- Division of Medical Oncology, Department of Medicine, Chulalongkorn University and the King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Poonchavist Chantranuwatana
- Department of Pathology, Chulalongkorn University and the King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Chinachote Teerapakpinyo
- Chulalongkorn GenePRO Center, Faculty of Medicine, Chulalongkorn University and the King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Shanop Shuangshoti
- Department of Pathology, Chulalongkorn University and the King Chulalongkorn Memorial Hospital, Bangkok, Thailand.,Chulalongkorn GenePRO Center, Faculty of Medicine, Chulalongkorn University and the King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Virote Sriuranpong
- Division of Medical Oncology, Department of Medicine, Chulalongkorn University and the King Chulalongkorn Memorial Hospital, Bangkok, Thailand
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7
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Tian Y, Yu M, Sun L, Liu L, Wang J, Hui K, Nan Q, Nie X, Ren Y, Ren X. Distinct Patterns of mRNA and lncRNA Expression Differences Between Lung Squamous Cell Carcinoma and Adenocarcinoma. J Comput Biol 2019; 27:1067-1078. [PMID: 31750732 DOI: 10.1089/cmb.2019.0164] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
This study aimed to assess mRNA and lncRNA expression differences between lung squamous cell carcinoma (LUSC) and lung adenocarcinoma (LUAD). Cancer tissues were obtained from three LUSC and three LUAD patients, followed by RNA-seq. Differentially expressed mRNAs (DE-mRNAs) and lncRNAs (DE-lncRNAs) were identified between LUSC and LUAD, after which functional enrichment analysis and protein-protein interaction (PPI) network construction was performed on DEGs. Coexpression analysis of lncRNA-gene and prediction of DEG-related miRNAs as well as function enrichment analysis, and construction of competing endogenous RNAs (ceRNA) regulatory network were then conducted. Moreover, survival analysis on differentially expressed RNAs was performed based on data downloaded from The Cancer Genome Atlas (TCGA) database. In this study, 518 DEGs and 117 DE-lncRNAs were identified between LUSC and LUAD. The DEGs were mainly associated with cell adhesion, PI3K-Akt signaling pathway, and focal adhesion. PPI network analysis indicated several genes with highest connectivity, such as CCND1. DE-lncRNAs that coexpressed with DEGs were also associated with tight junction and DE-lncRNAs that had more corepressed relationships with DEGs included GSEC, NKX2-1-AS1, LINC01415, and LINC00839. Moreover, the genes and lncRNAs with higher connectivity in the ceRNA network included NEAT1, SLC5A3, LINC00839, ETV1, CMTM4, and SNX30. Several genes were significantly related to the survival of patients with LUSC and LUAD, including ETV1, RTKN2, SNX30, PAK2, and CCND1. Genes and lncRNAs associated with cell junction have specific patterns in two major histological subtypes of NSCLC. GSEC, NKX2-1-AS1, NEAT1, CCND1, and ETV1 may be potential novel biomarkers for personalized treatment strategies of NSCLC.
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Affiliation(s)
- Yingxuan Tian
- Department of Elderly Respiratory Medicine, Shaanxi Provincial People's Hospital, Xi'an, China.,Department of Elderly Medicine, the Affiliated Shaanxi Provincial People's Hospital, Xi'an Medical College, Xi'an, China
| | - Min Yu
- Department of Oncology Medicine, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Li Sun
- Department of Elderly Respiratory Medicine, Shaanxi Provincial People's Hospital, Xi'an, China.,Department of Elderly Medicine, the Affiliated Shaanxi Provincial People's Hospital, Xi'an Medical College, Xi'an, China
| | - Linghua Liu
- Department of Elderly Respiratory Medicine, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Jun Wang
- Department of Elderly Respiratory Medicine, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Ke Hui
- Department of Elderly Respiratory Medicine, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Qiaofeng Nan
- Department of Elderly Medicine, the Affiliated Shaanxi Provincial People's Hospital, Xi'an Medical College, Xi'an, China
| | - Xinyu Nie
- Graduate School of Medical College, Yan'an University, Yan'an, China
| | - Yajuan Ren
- Department of Elderly Respiratory Medicine, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Xiaoping Ren
- Department of Elderly Respiratory Medicine, Shaanxi Provincial People's Hospital, Xi'an, China
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8
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Machado ART, Aissa AF, Ribeiro DL, Ferreira RS, Sampaio SV, Antunes LMG. BjussuLAAO-II induces cytotoxicity and alters DNA methylation of cell-cycle genes in monocultured/co-cultured HepG2 cells. J Venom Anim Toxins Incl Trop Dis 2019; 25:e147618. [PMID: 31131003 PMCID: PMC6527400 DOI: 10.1590/1678-9199-jvatitd-1476-18] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 10/22/2018] [Indexed: 12/18/2022] Open
Abstract
Background: The use of animal venoms and their toxins as material sources for
biotechnological applications has received much attention from the
pharmaceutical industry. L-amino acid oxidases from snake venoms (SV-LAAOs)
have demonstrated innumerous biological effects and pharmacological
potential against different cancer types. Hepatocellular carcinoma has
increased worldwide, and the aberrant DNA methylation of liver cells is a
common mechanism to promote hepatic tumorigenesis. Moreover, tumor
microenvironment plays a major role in neoplastic transformation. To
elucidate the molecular mechanisms responsible for the cytotoxic effects of
SV-LAAO in human cancer cells, this study aimed to evaluate the cytotoxicity
and the alterations in DNA methylation profiler in the promoter regions of
cell-cycle genes induced by BjussuLAAO-II, an LAAO from Bothrops
jaracussu venom, in human hepatocellular carcinoma (HepG2)
cells in monoculture and co-culture with endothelial (HUVEC) cells. Methods: BjussuLAAO-II concentrations were 0.25, 0.50, 1.00 and 5.00 μg/mL. Cell
viability was assessed by MTT assay and DNA methylation of the promoter
regions of 22 cell-cycle genes by EpiTect Methyl II PCR array. Results: BjussuLAAO-II decreased the cell viability of HepG2 cells in monoculture at
all concentrations tested. In co-culture, 1.00 and 5.00 μg/mL induced
cytotoxicity (p < 0.05). BjussuLAAO-II increased the
methylation of CCND1 and decreased the methylation of
CDKN1A in monoculture and GADD45A in
both cell-culture models (p < 0.05). Conclusion: Data showed BjussuLAAO-II induced cytotoxicity and altered DNA methylation of
the promoter regions of cell-cycle genes in HepG2 cells in monoculture and
co-culture models. We suggested the analysis of DNA methylation profile of
GADD45A as a potential biomarker of the cell cycle
effects of BjussuLAAO-II in cancer cells. The tumor microenvironment should
be considered to comprise part of biotechnological strategies during the
development of snake-toxin-based novel drugs.
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Affiliation(s)
- Ana Rita Thomazela Machado
- Department of Clinical Analysis, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo - USP, Ribeirão Preto, SP, Brazil
| | - Alexandre Ferro Aissa
- Department of Clinical Analysis, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo - USP, Ribeirão Preto, SP, Brazil
| | - Diego Luis Ribeiro
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo - USP, Ribeirão Preto, SP, Brazil
| | - Rui Seabra Ferreira
- Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University - UNESP, Botucatu, SP, Brazil
| | - Suely Vilela Sampaio
- Department of Clinical Analysis, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo - USP, Ribeirão Preto, SP, Brazil
| | - Lusânia Maria Greggi Antunes
- Department of Clinical Analysis, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo - USP, Ribeirão Preto, SP, Brazil
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Identification of key genes and construction of microRNA-mRNA regulatory networks in non-small cell lung cancer. Cancer Genet 2018; 228-229:47-54. [DOI: 10.1016/j.cancergen.2018.08.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 07/30/2018] [Accepted: 08/15/2018] [Indexed: 12/22/2022]
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10
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Jiao DM, Yan L, Wang LS, Hu HZ, Tang XL, Chen J, Wang J, Li Y, Chen QY. Exploration of inhibitory mechanisms of curcumin in lung cancer metastasis using a miRNA- transcription factor-target gene network. PLoS One 2017; 12:e0172470. [PMID: 28231299 PMCID: PMC5322911 DOI: 10.1371/journal.pone.0172470] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Accepted: 02/06/2017] [Indexed: 12/27/2022] Open
Abstract
The present study was aimed to unravel the inhibitory mechanisms of curcumin for lung cancer metastasis via constructing a miRNA-transcription factor (TF)-target gene network. Differentially expressed miRNAs between human high-metastatic non-small cell lung cancer 95D cells treated with and without curcumin were identified using a TaqMan human miRNA array followed by real-time PCR, out of which, the top 6 miRNAs (miR-302b-3p, miR-335-5p, miR-338-3p, miR-34c-5p, miR-29c-3p and miR-34a-35p) with more verified target genes and TFs than other miRNAs as confirmed by a literature review were selected for further analysis. The miRecords database was utilized to predict the target genes of these 6 miRNAs, TFs of which were identified based on the TRANSFAC database. The findings of the above procedure were used to construct a miRNA-TF-target gene network, among which miR-34a-5p, miR-34c-5p and miR-302b-3p seemed to regulate CCND1, WNT1 and MYC to be involved in Wnt signaling pathway through the LEF1 transcription factor. Therefore, we suggest miR-34a-5p/miR-34c-5p/miR-302b-3p —LEF1—CCND1/WNT1/MYC axis may be a crucial mechanism in inhibition of lung cancer metastasis by curcumin.
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Affiliation(s)
- De-min Jiao
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang, P.R. China
| | - Li Yan
- Department of Oncology, The 117th Hospital of PLA, Hangzhou, Zhejiang, P.R. China
| | - Li-shan Wang
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Hui-zhen Hu
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang, P.R. China
| | - Xia-li Tang
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang, P.R. China
| | - Jun Chen
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang, P.R. China
| | - Jian Wang
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang, P.R. China
| | - You Li
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang, P.R. China
| | - Qing-yong Chen
- Department of Respiratory Disease, The 117th Hospital of PLA, Hangzhou, Zhejiang, P.R. China
- * E-mail:
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11
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Baykara O, Dalay N, Bakir B, Bulut P, Kaynak K, Buyru N. The EMSY Gene Collaborates with CCND1 in Non-Small Cell Lung Carcinogenesis. Int J Med Sci 2017; 14:675-679. [PMID: 28824300 PMCID: PMC5562119 DOI: 10.7150/ijms.19355] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 04/23/2017] [Indexed: 12/13/2022] Open
Abstract
Background: Lung cancer is the leading cause of cancer deaths. The main risk factor is smoking but the risk is also associated with various genetic and epigenetic components in addition to environmental factors. Increases in the gene copy numbers due to chromosomal amplifications constitute a common mechanism for oncogene activation. A gene-dense region on chromosome 11q13 which harbors four core regions that are frequently amplified, has been associated with various types of cancer. The important cell cycle regulatory protein cyclin D1 (CCND1) is an essential driver of the first core region of the Chr11q13 amplicon. Deregulation of CCND1 has been associated with different kinds of human malignancies including lung cancer. The EMSY (c11orf30) gene has been proposed as the possible driver of the fourth core of the 11q13 amplicon and its amplification has been associated with breast and ovarian cancers. There is no report in the literature investigating the EMSY gene in lung cancer. Methods: In this study, expression levels of the EMSY and CCND1 genes were investigated in 85 patients with non small cell lung cancer by Real Time PCR. Results: Expression of the EMSY and CCND1 genes were increased in 56 (65.8%) and 50 (58.8%) of the patients, respectively. Both genes showed a higher expression in the tumors when compared to normal tissues. A strong correlation was present between the expression rates of both genes (p<0.001). Patients with adenocarcinoma had higher expression levels of both genes (p=0.02). Conclusion: We conclude that EMSY and CCND1 work in collaboration and contribute to the pathogenesis of lung cancer.
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Affiliation(s)
- Onur Baykara
- Istanbul University, Department of Medical Biology, Cerrahpasa Medical Faculty, Istanbul 34303, Turkey
| | - Nejat Dalay
- Istanbul University, Department of Medical Biology, Cerrahpasa Medical Faculty, Istanbul 34303, Turkey
| | - Burak Bakir
- Istanbul University, Department of Medical Biology, Cerrahpasa Medical Faculty, Istanbul 34303, Turkey
| | - Pelin Bulut
- Istanbul University, Department of Medical Biology, Cerrahpasa Medical Faculty, Istanbul 34303, Turkey
| | - Kamil Kaynak
- Istanbul University, Department of Chest Surgery, Cerrahpasa Medical Faculty, Istanbul 34303, Turkey
| | - Nur Buyru
- Istanbul University, Department of Medical Biology, Cerrahpasa Medical Faculty, Istanbul 34303, Turkey
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