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Wang T, Cao C, Fan Y, Xu J, Hua T, Ding J, Liu Z, Wang B, Lian J. GABPB1 plays a cancer-promoting role in non-small cell lung cancer. Discov Oncol 2024; 15:72. [PMID: 38466508 DOI: 10.1007/s12672-024-00914-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 02/28/2024] [Indexed: 03/13/2024] Open
Abstract
BACKGROUND GABPB1, the gene that encodes two isoforms of the beta subunit of GABP, has been identified as an oncogene in multiple malignant tumors. However, the role and mode of action of GABPB1 in malignant tumors, especially in lung cancer, are not well understood and need further research. METHODS Our research focused on examining the biological function of GABPB1 in NSCLC (Non-Small Cell Lung Cancer). We analysed tumor data from public databases to assess the expression of GABPB1 in NSCLC and its correlation with patient prognosis and investigated GABPB1 expression and methylation patterns in relation to the tumor microenvironment. In parallel, experiments were conducted using short hairpin RNA (shRNA) to suppress the GABPB1 gene in human lung cancer cells to evaluate the effects on cell proliferation, viability, and apoptosis. RESULTS GABPB1 was widely expressed in various tissues of the human body. Compared to that in normal tissues, the expression of this gene was different in multiple tumor tissues. GABPB1 was highly expressed in lung cancer tissues and cell lines. Its expression was associated with molecular subtype and cellular signalling pathways, and a high level of GABPB1 expression was related to a poor prognosis in lung adenocarcinoma patients. The expression and methylation of GABPB1 affect the tumor microenvironment. After suppressing the expression of GABPB1 in both A549 and H1299 cells, we found a decrease in cell growth and expression, the formation of clones and an increase in the apoptosis rate. CONCLUSIONS Our research verified that GABPB1 promotes the tumorigenesis of NSCLC and has an inhibitory effect on tumor immunity. The specific role of GABPB1 may vary among different pathological types of NSCLC. This molecule can serve as a prognostic indicator for lung adenocarcinoma, and its methylation may represent a potential breakthrough in treatment by altering the tumor immune microenvironment in lung squamous cell carcinoma. The role and mechanism of action of GABPB1 in NSCLC should be further explored.
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Affiliation(s)
- Tuo Wang
- Department of Oncology, Xi'an Chest Hospital, Xi'an, 710100, Shaanxi, China
| | - Cong Cao
- Department of Oncology, Xi'an Chest Hospital, Xi'an, 710100, Shaanxi, China
| | - Yu Fan
- Department of Oncology, Xi'an Chest Hospital, Xi'an, 710100, Shaanxi, China
| | - Jialing Xu
- Department of Oncology, Xi'an Chest Hospital, Xi'an, 710100, Shaanxi, China
| | - Tao Hua
- Department of Oncology, Xi'an Chest Hospital, Xi'an, 710100, Shaanxi, China
| | - Jie Ding
- Department of Oncology, Xi'an Chest Hospital, Xi'an, 710100, Shaanxi, China
| | - Zejie Liu
- Department of Oncology, Xi'an Chest Hospital, Xi'an, 710100, Shaanxi, China
| | - Beili Wang
- Department of Oncology, Xi'an Chest Hospital, Xi'an, 710100, Shaanxi, China
| | - Juanwen Lian
- Department of Oncology, Xi'an Chest Hospital, Xi'an, 710100, Shaanxi, China.
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Impact of Results of TTF-1 Immunostaining on Efficacy of Platinum-Doublet Chemotherapy in Japanese Patients with Nonsquamous Non-Small-Cell Lung Cancer. J Clin Med 2022; 12:jcm12010137. [PMID: 36614938 PMCID: PMC9821382 DOI: 10.3390/jcm12010137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 12/12/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Pemetrexed is a key drug in chemotherapy for nonsquamous non-small-cell lung cancer (nonsq NSCLC). Several studies have reported thyroid transcription factor-1 (TTF-1) as a biomarker of the efficacy in chemotherapy regimens, including pemetrexed in non-Asian people. OBJECTIVE We aimed to examine the impact of the results of the TTF-1 immunostaining of tumor cells on the therapeutic effect of chemotherapy in Japanese patients with nonsq NSCLC. METHODS We examined the results of TTF-1 immunostaining and the clinical background of Japanese patients with nonsq NSCLC who received platinum-doublet chemotherapy at our hospital, from April 2009 to April 2021, and the correlation between regimens with or without pemetrexed in progression-free survival (PFS) and overall survival (OS). The efficacy of each regimen was then compared between TTF-1-positive and TTF-1-negative tumors. RESULTS TTF-1 immunostaining was performed in 145 patients during the study period: 92 were positive, and 53 were negative. A total of 24 patients presented with EGFR/ALK gene abnormality (16.6%). The PFS and OS of patients who were TTF-1-positive tended to be longer than those of the patients who were TTF-1-negative under either regimen. In other words, patients who were TTF-1-negative were frequently resistant to numerous chemotherapy drugs and experienced a poor prognosis under both regimens. The OS of patients who were TTF-1-positive and treated with the pemetrexed regimen was significantly longer than those on regimens without pemetrexed (963 vs. 412 days, HR = 0.73; 95% CI 0.55-0.96, p = 0.022), whereas there was no difference in PFS. CONCLUSIONS The positivity of TTF-1 immunostaining in tumors could be a predominant prognostic marker for patients who have advanced nonsq NSCLC. Our analysis examined the possibility of a pemetrexed regimen leading to a longer prognosis in Asian patients who were TTF-1-positive for nonsq NSCLC, as shown in previous studies.
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Nakra T, Singh V, Nambirajan A, Malik PS, Mohan A, Jain D. Correlation of TTF-1 immunoexpression and EGFR mutation spectrum in non-small cell lung carcinoma. J Pathol Transl Med 2021; 55:279-288. [PMID: 34233113 PMCID: PMC8353134 DOI: 10.4132/jptm.2021.05.10] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 05/10/2021] [Indexed: 01/18/2023] Open
Abstract
Background Thyroid transcription factor (TTF-1) is a diagnostic marker expressed in 75%–85% of primary lung adenocarcinomas (ACs). Activating mutations in the tyrosine kinase domain of the epidermal growth factor receptor (EGFR) gene is the most common targetable driver alteration in lung AC. Previous studies have shown a positive correlation between TTF-1 and EGFR mutation status. We aimed to determine the predictive value of TTF-1 immunoexpression for underlying EGFR mutation status in a large Indian cohort. Methods This retrospective designed study was conducted with medical record data from 2011 to 2020. All cases of primary lung AC and non–small cell lung carcinoma not otherwise specified (NSCLC, NOS) with known TTF-1 expression diagnosed by immunohistochemistry using 8G7G3/1 antibodies and EGFR mutation status diagnosed by quantitative polymerase chain reaction were retrieved, reviewed, and theresults were analyzed. Results Among 909 patient samples diagnosed as lung AC and NSCLC, NOS, TTF-1 was positive in 76.8% cases (698/909) and EGFR mutations were detected in 29.6% (269/909). A strong positive correlation was present between TTF-1 positivity and EGFR mutation status (odds ratio, 3.61; p < .001), with TTF-1 positivity showing high sensitivity (90%) and negative predictive value (87%) for EGFR mutation. TTF-1 immunoexpression did not show significant correlation with uncommon/dual EGFR mutations (odds ratio, 1.69; p = .098). EGFR–tyrosine kinase inhibitor therapy was significantly superior to chemotherapy among EGFR mutant cases irrespective of TTF-1 status; however, no significant differences among survival outcomes were observed. Conclusions Our study confirms a strong positive correlation between TTF-1 expression and common EGFR mutations (exon 19 deletion and exon 21 L858R) in advanced lung AC with significantly high negative predictive value of TTF-1 for EGFR mutations.
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Affiliation(s)
- Tripti Nakra
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | - Varsha Singh
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | - Aruna Nambirajan
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | - Prabhat Singh Malik
- Department of Medical Oncology, Dr B.R. Ambedkar Institute Rotary Cancer Hospital, All India Institute of Medical Sciences, New Delhi, India
| | - Anant Mohan
- Department of Pulmonary Medicine and Sleep Disorders, All India Institute of Medical Sciences, New Delhi, India
| | - Deepali Jain
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
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Svaton M, Fiala O, Krakorova G, Blazek J, Hurdalkova K, Barinova M, Mukensnabl P, Pesek M. Thyroid transcription factor 1 and p63 expression is associated with survival outcome in patients with non-small cell lung cancer treated with erlotinib. Oncol Lett 2020; 20:1376-1382. [PMID: 32724380 PMCID: PMC7377161 DOI: 10.3892/ol.2020.11663] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 04/16/2020] [Indexed: 12/31/2022] Open
Abstract
While erlotinib is primarily administered to patients with non-small cell lung cancer with sensitizing epidermal growth factor receptor (EGFR) mutations, it is also prescribed to patients with wild type (wt) EGFR in higher lines of treatment. However, there is no predictive marker for erlotinib efficacy in patients with EGFR wt. Certain immunohistochemical (IHC) parameters, including thyroid transcription factor 1 (TTF1) and p63, have been reported to indicate predictive power in patients with EGFR wt. The present study focused on retrospective data from the University Hospital in Pilsen using the TULUNG register. TTF1 and p63 expression data were extracted from the hospital information system and merged with registry data to calculate progression-free survival (PFS) and overall survival (OS) rates. A cohort of 345 patients with adenocarcinoma (ADC) or squamous cell carcinoma (SCC) exhibited similar erlotinib efficacies when TTF1 and p63 were ignored. However, significant differences were reported in PFS and OS rates of a subgroup of 126 patients where TTF1 and p63 parameters were known. In a univariate analysis, group A (ADC TTF1+/p63-) achieved PFS of 2.6 months, group B (SSC TTF1-/p63+) 1.9 months and group C (did not fit into groups A or B, i.e., ADC TTF1-/p63+ or SCC TTF1+/p63-) 1.4 months (P=0.006). Median OS was 14.2, 19.1 and 5.3 months for A, B and C, respectively (P=0.002). Furthermore, a multivariate analysis demonstrated IHC markers to be the only significant parameters for PFS and OS. Group C had a negative prognostic factor for PFS [hazard ratio (HR), 1.812; P=0.02] and OS (HR=2.367; P=0.01). In conclusion, patients with EGFR wt and lung carcinomas without TTF1 and p63 expression typical for ADC (TTF1+/p633-) or SCC (TTF1-/p63+) do not appear to be suitable candidates for erlotinib treatment.
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Affiliation(s)
- Martin Svaton
- Department of Pneumology and Phthisiology, Faculty of Medicine in Pilsen, Charles University, 305 99 Pilsen, Czech Republic
| | - Ondrej Fiala
- Department of Oncology and Radiotherapy, Faculty of Medicine in Pilsen, Charles University, 305 99 Pilsen, Czech Republic.,Biomedical Center, Faculty of Medicine in Pilsen, Charles University, 305 99 Pilsen, Czech Republic
| | - Gabriela Krakorova
- Department of Pneumology and Phthisiology, Faculty of Medicine in Pilsen, Charles University, 305 99 Pilsen, Czech Republic
| | - Jiri Blazek
- Department of Pneumology and Phthisiology, Faculty of Medicine in Pilsen, Charles University, 305 99 Pilsen, Czech Republic
| | | | - Magda Barinova
- Institute of Biostatistics and Analyses Ltd., 625 00 Brno, Czech Republic
| | - Petr Mukensnabl
- Department of Pathology, Faculty of Medicine in Pilsen, Charles University, 305 99 Pilsen, Czech Republic
| | - Milos Pesek
- Department of Pneumology and Phthisiology, Faculty of Medicine in Pilsen, Charles University, 305 99 Pilsen, Czech Republic
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Kim HS, Kim JH, Han B, Choi DR. Correlation of Thyroid Transcription Factor-1 Expression with EGFR Mutations in Non-Small-Cell Lung Cancer: A Meta-Analysis. MEDICINA (KAUNAS, LITHUANIA) 2019; 55:E41. [PMID: 30736438 PMCID: PMC6410251 DOI: 10.3390/medicina55020041] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 02/04/2019] [Indexed: 12/12/2022]
Abstract
OBJECTIVES This meta-analysis investigated the relationship between thyroid transcription factor-1 (TTF-1) expression and epidermal growth factor receptor (EGFR) mutations in non-small-cell lung cancer (NSCLC) to clarify whether TTF-1 can be a potential surrogate marker for EGFR mutation status in advanced NSLCL. METHODS A systematic searching of databases, including PubMed, EMBASE, Cochrane Library, and Google Scholar, was performed to identify studies assessing the correlation of TTF-1 expression with EGFR mutations. From 17 studies, 9764 patients were included in the combined analysis of odds ratio (OR) for the correlation between TTF-1 expression and EGFR mutations. RESULTS Compared with NSCLCs showing negative TTF-1 expression, tumors harboring TTF-1 overexpression showed a significantly higher rate of EGFR mutations (OR = 5.19, 95% confidence interval: 3.60⁻7.47, p < 0.00001). This correlation was observed in both subgroups of East Asian (OR = 4.33, 95% CI: 3.46⁻5.41, p < 0.00001) and European patients (OR = 4.64, 95% CI: 1.41⁻15.28, p < 0.01). In addition, TTF-1 expression was significantly associated with EGFR mutations in exon 19 (OR = 4.63, 95% CI: 2.89⁻7.41, p < 0.00001) as well as exon 21 (OR = 3.16, 95% CI: 1.04⁻9.60, p = 0.04). CONCLUSIONS This meta-analysis demonstrates a significant correlation between TTF-1 expression and EGFR mutations in patients with NSCLC. The status of TTF-1 expression may be a biomarker to guide anticancer treatment in patients with NSCLC and unknown EGFR mutation status.
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Affiliation(s)
- Hyeong Su Kim
- Division of Hemato-Oncology, Department of Internal Medicine, Kangnam Sacred-Heart Hospital, Hallym University Medical Center, Hallym University College of Medicine, Seoul 07441, Korea.
| | - Jung Han Kim
- Division of Hemato-Oncology, Department of Internal Medicine, Kangnam Sacred-Heart Hospital, Hallym University Medical Center, Hallym University College of Medicine, Seoul 07441, Korea.
| | - Boram Han
- Division of Hemato-Oncology, Department of Internal Medicine, Hallym University Medical Center, Anyang 14068, Korea.
| | - Dae Ro Choi
- Division of Hemato-Oncology, Department of Internal Medicine, Hallym University Medical Center, Anyang 14068, Korea.
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Kim JH, Kim HS, Kim BJ, Han B, Choi DR, Kwon JH. Prognostic Impact of TTF-1 Expression in Non-Squamous Non-Small-Cell Lung Cancer: A Meta-Analysis. J Cancer 2018; 9:4279-4286. [PMID: 30519330 PMCID: PMC6277629 DOI: 10.7150/jca.26830] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Accepted: 08/23/2018] [Indexed: 12/18/2022] Open
Abstract
Thyroid transcription factor-1 (TTF-1) is overexpressed in up to 95% of primary lung adenocarcinoma while negative for almost all squamous cell carcinomas. TTF-1 expression has been investigated as a prognostic factor in non-small-cell lung cancer (NSCLC) with conflicting results. We conducted this meta-analysis to gain a better insight into the prognostic role of TTF-1 in patients only with non-squamous (non-SQ) NSCLC. A systematic computerized search of the electronic databases including PubMed, PMC, EMBASE, Web of Science, and Cochrane Library was performed. From 21 studies, 6,451 patients were included in the combined analysis of hazard ratios (HRs) with 95% confidence intervals (CIs) for overall survival. Compared with patients with non-SQ NSCLC showing negative TTF-1 expression, those with tumors harboring TTF-1 overexpression had significantly better survival (HR = 0.49, 95% CI: 0.42-0.57, p < 0.00001). Subgroup analyses revealed that TTF-1 expression significantly correlated with a better prognosis in stage I (HR = 0.65, 95% CI: 0.50-0.84, p = 0.0008) as well as stage III-IV non-SQ NSCLC (HR = 0.38, 95% CI: 0.29-0.49, p < 0.00001). In conclusion, this meta-analysis demonstrates that TTF-1 overexpression is a favorable prognostic factor in patients with non-SQ NSCLC. The subgroup analyses indicate that TTF-1 is a good prognostic marker for survival not only in early-stage but also in advanced non-SQ NSCLC.
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Affiliation(s)
- Jung Han Kim
- Division of Hemato-Oncology, Department of Internal Medicine, Hallym University Medical Center, Hallym University College of Medicine, Seoul, Republic of Korea
| | - Hyeong Su Kim
- Division of Hemato-Oncology, Department of Internal Medicine, Hallym University Medical Center, Hallym University College of Medicine, Seoul, Republic of Korea
| | - Bum Jun Kim
- Division of Hemato-Oncology, Department of Internal Medicine, Hallym University Medical Center, Hallym University College of Medicine, Seoul, Republic of Korea.,Department of Internal Medicine, National Army Capital Hospital, The Armed Forces Medical Command, Sungnam, Gyeonggi-Do, Republic of Korea
| | - Boram Han
- Division of Hemato-Oncology, Department of Internal Medicine, Hallym University Medical Center, Hallym University College of Medicine, Seoul, Republic of Korea
| | - Dae Ro Choi
- Division of Hemato-Oncology, Department of Internal Medicine, Hallym University Medical Center, Hallym University College of Medicine, Seoul, Republic of Korea
| | - Jung Hye Kwon
- Division of Hemato-Oncology, Department of Internal Medicine, Hallym University Medical Center, Hallym University College of Medicine, Seoul, Republic of Korea
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Li M, Zheng W, Wei J, Hou C, Yang Y, Sun L, Wang C. Thyroid transcription factor-1 promotes lymph node metastasis by inducing lymphangiogenesis in ovarian carcinoma. Pathol Res Pract 2017; 213:1054-1058. [PMID: 28843751 DOI: 10.1016/j.prp.2017.07.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 07/10/2017] [Accepted: 07/28/2017] [Indexed: 12/01/2022]
Abstract
AIMS AND BACKGROUND Thyroid transcription factor-1 (TTF-1) expression is widely considered a specific marker for lung and thyroid carcinomas and plays an important role in angiogenesis in lung cancer. However, it can occasionally be expressed in other malignancies, including ovarian carcinomas, and the mechanism of TTF-1 in lymphatic metastasis of ovarian carcinomas is still unclear. This study aimed to define the TTF-1 expression and lymph vessel density (LVD) in ovarian carcinomas and look for their correlations with clinicopathological features. METHODS We examined the incidence of thyroid transcription factor 1 expression (clone SPT24) and lymph vessel density (LVD) quantified through D2-40 by immunohistochemistry from 110 primary ovarian carcinomas and 40 benign ovarian tumor as controls in Chinese patients. RESULTS Thyroid transcription factor 1 was detected in 28 primary ovarian carcinomas (25.5%), which was significantly higher than its expression in benign ovarian tumor. TTF-1 expression was correlated with tumor FIGO stage,T stage and lymphatic metastasis. Moreover, LVD was associated with tumor FIGO stage, TNM stage. Furthermore, the LVD counts in group of TTF-1 positive expression were higher than in group of TTF-1 negative expression. CONCLUSIONS These findings indicated the occasional expression of TTF-1 immunoreactivity of ovarian carcinomas should be considered in the evaluation of neoplasms of unknown primary origin and TTF-1 might be involved in lymph node metastasis of ovarian carcinomas in the presence of lymphangiogenesis.
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Affiliation(s)
- Minhua Li
- Department of Pathology, Shaoxing People's Hospital & Shaoxing Hospital of Zhejiang University, Shaoxing, China.
| | - Weiping Zheng
- Department of Gynecology, Shaoxing People's Hospital & Shaoxing Hospital of Zhejiang University, Shaoxing, China
| | - Jianguo Wei
- Department of Pathology, Shaoxing People's Hospital & Shaoxing Hospital of Zhejiang University, Shaoxing, China
| | - Chuanling Hou
- Department of Pathology, Shaoxing People's Hospital & Shaoxing Hospital of Zhejiang University, Shaoxing, China
| | - Ye Yang
- Department of Pathology, Shaoxing People's Hospital & Shaoxing Hospital of Zhejiang University, Shaoxing, China
| | - Liping Sun
- Department of Pathology, Shaoxing People's Hospital & Shaoxing Hospital of Zhejiang University, Shaoxing, China
| | - Cheng Wang
- Department of Pathology, Shaoxing People's Hospital & Shaoxing Hospital of Zhejiang University, Shaoxing, China
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Liang L, Luo Y, Yang X, Zhang R, Wang H, Yang H, He Y, Chen G, Ma W, Chen J. Lowered levels of microRNA-129 and potential signaling pathways in papillary thyroid carcinoma: a determination of microRNA sequencing in 507 patients and bioinformatics analysis. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2017; 10:7511-7527. [PMID: 31966595 PMCID: PMC6965262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 05/26/2017] [Indexed: 06/10/2023]
Abstract
Papillary thyroid carcinoma (PTC) is one of the most common endocrine system malignancies. However, the mechanism of tumor development is unclear. microRNA-129-5p is a microRNA that plays an important role in the development of tumors. The main purpose of our article is to find the potential target genes of microRNA-129 and their pathways based on gene array, sequencing and bioinformatics studies. We obtained microRNA-129 expression and clinical associations in the TCGA database. In addition, we found a microRNA-129-related chip GSE19933, which is overexpressing microR-129-5p in thyroid cancer cell lines. The down-regulated gene is considered to be a potential target gene for microRNA-129. The target genes were predicted through 12 online tools. We performed Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis of all down-regulated and predicted target genes. Furthermore, protein-protein interactions (PPI) were also analyzed for all potential genes. Finally, with intersecting down-regulated genes by overexpressed microRNA-129 and predicted target genes, the 889 genes are mainly enriched in the calcium signaling pathway, cGMP-PKG signaling pathway, ErbB signaling pathway and Proteoglycans in cancer, etc. The role of ten hub genes is particularly prominent in PPI analysis. These genes are differentially expressed in the thyroid by immunohistochemistry. We confirmed that microRNA-129 may play a major role in PTC through the above pathways, but more experiments are still needed to prove our results.
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Affiliation(s)
- Liang Liang
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Guangxi Medical UniversityNanning, Guangxi Zhuang Autonomous Region, P. R. China
| | - Yihuan Luo
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Guangxi Medical UniversityNanning, Guangxi Zhuang Autonomous Region, P. R. China
| | - Xia Yang
- Department of Pathology, First Affiliated Hospital of Guangxi Medical UniversityNanning, Guangxi Zhuang Autonomous Region, P. R. China
| | - Rui Zhang
- Department of Pathology, First Affiliated Hospital of Guangxi Medical UniversityNanning, Guangxi Zhuang Autonomous Region, P. R. China
| | - Hanlin Wang
- Department of Pathology, First Affiliated Hospital of Guangxi Medical UniversityNanning, Guangxi Zhuang Autonomous Region, P. R. China
| | - Hong Yang
- Department of Ultrasonography, First Affiliated Hospital of Guangxi Medical UniversityNanning, Guangxi Zhuang Autonomous Region, P. R. China
| | - Yun He
- Department of Ultrasonography, First Affiliated Hospital of Guangxi Medical UniversityNanning, Guangxi Zhuang Autonomous Region, P. R. China
| | - Gang Chen
- Department of Pathology, First Affiliated Hospital of Guangxi Medical UniversityNanning, Guangxi Zhuang Autonomous Region, P. R. China
| | - Wei Ma
- Department of Pathology, First Affiliated Hospital of Guangxi Medical UniversityNanning, Guangxi Zhuang Autonomous Region, P. R. China
| | - Junqiang Chen
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Guangxi Medical UniversityNanning, Guangxi Zhuang Autonomous Region, P. R. China
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