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Zheng S, He S, Liang Y, Tan Y, Liu Q, Liu T, Lu X. Understanding PI3K/Akt/mTOR signaling in squamous cell carcinoma: mutated PIK3CA as an example. MOLECULAR BIOMEDICINE 2024; 5:13. [PMID: 38616230 PMCID: PMC11016524 DOI: 10.1186/s43556-024-00176-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 02/29/2024] [Indexed: 04/16/2024] Open
Abstract
Compared with those in adenocarcinoma, PIK3CA mutations are more common in squamous cell carcinoma (SCC), which arises from stratified squamous epithelia that are usually exposed to adverse environmental factors. Although hotspot mutations in exons 9 and 20 of PIK3CA, including E542K, E545K, H1047L and H1047R, are frequently encountered in the clinic, their clinicopathological meaning remains to be determined in the context of SCC. Considering that few reviews on PIK3CA mutations in SCC are available in the literature, we undertook this review to shed light on the clinical significance of PIK3CA mutations, mainly regarding the implications and ramifications of PIK3CA mutations in malignant cell behavior, prognosis, relapse or recurrence and chemo- or radioresistance of SCC. It should be noted that only those studies regarding SCC in which PIK3CA was mutated were cherry-picked, which fell within the scope of this review. However, the role of mutated PIK3CA in adenocarcinoma has not been discussed. In addition, mutations occurring in other main members of the PI3K-AKT-mTOR signaling pathway other than PIK3CA were also excluded.
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Affiliation(s)
- Shutao Zheng
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Clinical Medical Research Institute, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, Xinjiang, People's Republic of China
| | - Shuo He
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Clinical Medical Research Institute, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, Xinjiang, People's Republic of China
| | - Yan Liang
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Clinical Medical Research Institute, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, Xinjiang, People's Republic of China
| | - Yiyi Tan
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Clinical Medical Research Institute, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, Xinjiang, People's Republic of China
| | - Qing Liu
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Clinical Medical Research Institute, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, Xinjiang, People's Republic of China
| | - Tao Liu
- Department of Clinical Laboratory, First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, Xinjiang, People's Republic of China
| | - Xiaomei Lu
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Clinical Medical Research Institute, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, Xinjiang, People's Republic of China.
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Li Q, Li Z, Luo T, Shi H. Targeting the PI3K/AKT/mTOR and RAF/MEK/ERK pathways for cancer therapy. MOLECULAR BIOMEDICINE 2022; 3:47. [PMID: 36539659 PMCID: PMC9768098 DOI: 10.1186/s43556-022-00110-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 11/10/2022] [Indexed: 12/24/2022] Open
Abstract
The PI3K/AKT/mTOR and RAF/MEK/ERK pathways are commonly activated by mutations and chromosomal translocation in vital targets. The PI3K/AKT/mTOR signaling pathway is dysregulated in nearly all kinds of neoplasms, with the component in this pathway alternations. RAF/MEK/ERK signaling cascades are used to conduct signaling from the cell surface to the nucleus to mediate gene expression, cell cycle processes and apoptosis. RAS, B-Raf, PI3K, and PTEN are frequent upstream alternative sites. These mutations resulted in activated cell growth and downregulated cell apoptosis. The two pathways interact with each other to participate in tumorigenesis. PTEN alterations suppress RAF/MEK/ERK pathway activity via AKT phosphorylation and RAS inhibition. Several inhibitors targeting major components of these two pathways have been supported by the FDA. Dozens of agents in these two pathways have attracted great attention and have been assessed in clinical trials. The combination of small molecular inhibitors with traditional regimens has also been explored. Furthermore, dual inhibitors provide new insight into antitumor activity. This review will further comprehensively describe the genetic alterations in normal patients and tumor patients and discuss the role of targeted inhibitors in malignant neoplasm therapy. We hope this review will promote a comprehensive understanding of the role of the PI3K/AKT/mTOR and RAF/MEK/ERK signaling pathways in facilitating tumors and will help direct drug selection for tumor therapy.
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Affiliation(s)
- Qingfang Li
- grid.13291.380000 0001 0807 1581Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy, West China Hospital, National Clinical Research Center for Geriatrics, Sichuan University, Chengdu, China
| | - Zhihui Li
- Department of Oncology, The General Hospital of Western Theater Command, Chengdu, PR China
| | - Ting Luo
- grid.13291.380000 0001 0807 1581Department of Breast, Cancer Center, West China Hospital, Sichuan University, 610041 Chengdu, P. R. China
| | - Huashan Shi
- grid.13291.380000 0001 0807 1581Department of Biotherapy, Cancer Center, West China Hospital, Sichuan University, 610041 Chengdu, P. R. China
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Integrated cohort of esophageal squamous cell cancer reveals genomic features underlying clinical characteristics. Nat Commun 2022; 13:5268. [PMID: 36071046 PMCID: PMC9452532 DOI: 10.1038/s41467-022-32962-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 08/25/2022] [Indexed: 11/08/2022] Open
Abstract
Esophageal squamous cell cancer (ESCC) is the major pathologic type of esophageal cancer in Asian population. To systematically evaluate the mutational features underlying clinical characteristics, we establish the integrated dataset of ESCC-META that consists of 1930 ESCC genomes from 33 datasets. The data process pipelines lead to well homogeneity of this integrated cohort for further analysis. We identified 11 mutational signatures in ESCC, some of which are related to clinical features, and firstly detect the significant mutated hotspots in TGFBR2 and IRF2BPL. We screen the survival related mutational features and found some genes had different prognostic impacts between early and late stage, such as PIK3CA and NFE2L2. Based on the results, an applicable approach of mutational score is proposed and validated to predict prognosis in ESCC. As an open-sourced, quality-controlled and updating mutational landscape, the ESCC-META dataset could facilitate further genomic and translational study in this field.
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Ye H, Mulmi Shrestha S, Zhu J, Ding Y, Shi R. Long non‑coding RNA LINC00491 promotes proliferation and inhibits apoptosis in esophageal squamous cell carcinoma. Int J Mol Med 2021; 47:33. [PMID: 33537830 PMCID: PMC7891827 DOI: 10.3892/ijmm.2021.4866] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 09/28/2020] [Indexed: 12/24/2022] Open
Abstract
Esophageal squamous cell carcinoma (ESCC) is a common malignant tumor in the human digestive system, which affects the physical and mental health of the patient. Long non-coding (lnc)RNAs have been revealed to play an important role in human malignant tumors. Moreover, long intergenic non-protein coding RNA 491 (LINC00491) is a newly discovered lncRNA that can affect the prognosis of cancer. The present study aimed to explore the expression of LINC00491 in ESCC tissues and cells. The reverse transcription-quantitative PCR results suggested that LINC00491 was upregulated in ESCC tissues and cells. LINC00491 expression in esophageal squamous cell carcinoma cells were knocked down. Cell Counting Kit-8, wound healing, Transwell and apoptosis assays were performed to detect the effects of LINC00491 knockdown on cell biological behavior. The results showed that lower expression of LINC00491 resulted in decreased cell proliferation and migration and increased the apoptosis rate. Therefore, the present results indicated that lncRNA LINC00491 promoted the biological processes of ESCC, and thus LINC00491 may be a potential therapeutic target for ESCC.
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Affiliation(s)
- Hui Ye
- School of Medicine, Southeast University, Nanjing, Jiangsu 210009, P.R. China
| | | | - Jie Zhu
- Department of Gastroenterology, Zhongda Hospital Affiliated to Southeast University, Nanjing, Jiangsu 210009, P.R. China
| | - Yan Ding
- Department of Microbiology and Immunology, Medical School, Southeast University, Nanjing, Jiangsu 210009, P.R. China
| | - Ruihua Shi
- School of Medicine, Southeast University, Nanjing, Jiangsu 210009, P.R. China
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Wang X, Zhu Y. Circ_0000020 elevates the expression of PIK3CA and facilitates the malignant phenotypes of glioma cells via targeting miR-142-5p. Cancer Cell Int 2021; 21:79. [PMID: 33509213 PMCID: PMC7841906 DOI: 10.1186/s12935-021-01767-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 01/10/2021] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Multiple circular RNAs (circRNAs) have been recently described as crucial oncogenic factors or tumor suppressors. This study aimed to investigate the role of circ_0000020 in glioma progression. METHODS Circ_0000020 and miR-142-5p expressions in glioma samples were assessed through qRT-PCR, and then the association between pathological indexes and circ_0000020 expressions was analyzed. Functional experiment was performed with human glioma cell lines U251 and U87. Gain-of-function and loss-of-function models were established. CCK-8 assay was used to detect glioma cell proliferation. Transwell assay was used to examine glioma cell migration and invasion. The regulatory relationships among circ_0000020, miR-142-5p and phosphatidylinositol 3-kinase C (PIK3CA) were investigated by bioinformatics analysis, luciferase reporter assay, qRT-PCR and Western blot. In vivo tumorigenesis assay was performed with nude mice to further validate the demonstrations of in vitro experiments. RESULTS Circ_0000020 expression in glioma samples was remarkably increased compared with that in normal brain tissues and its high expression was associated with unfavorable pathological indexes. Circ_0000020 overexpression remarkably accelerated proliferation, migration and invasion of glioma cells. Accordingly, circ_0000020 knockdown suppressed the malignant phenotypes of glioma cells. Circ_0000020 overexpression significantly reduced miR-142-5p expression by sponging it, and circ_0000020 could enhance the expression of PIK3CA, which was a target gene of miR-142-5p. CONCLUSIONS Circ_0000020 promotes glioma progression via miR-142-5p/PIK3CA axis.
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Affiliation(s)
- Xu Wang
- Department of Neurosurgery, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Jingzhou Street No. 136, Xiangyang, 441021, Hubei, China
| | - Yaozu Zhu
- Department of Neurosurgery, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Jingzhou Street No. 136, Xiangyang, 441021, Hubei, China.
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PIK3CA Gene Mutations in Solid Malignancies: Association with Clinicopathological Parameters and Prognosis. Cancers (Basel) 2019; 12:cancers12010093. [PMID: 31905960 PMCID: PMC7017171 DOI: 10.3390/cancers12010093] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 12/18/2019] [Accepted: 12/19/2019] [Indexed: 02/07/2023] Open
Abstract
Phosphoinositide kinases (PIKs) are a group of lipid kinases that are important upstream activators of various significant signaling pathways. Hyperactivation of the PI3K/AKT/mTOR pathways—either via mutations or genomic amplification—confers key oncogenic activity, essential for the development and progression of several solid tumors. Alterations in the PIK3CA gene are associated with poor prognosis of solid malignancies. Although the literature reports contradictory prognostic values of PIK3CA in aggressive cancers, most of the available data highlight the important role of PIK3CA mutation in mediating tumorigenesis via increased signaling of the PI3K/AKT/mTOR survival pathway. Several inhibitors of PI3K/AKT/mTOR pathways are investigated as potential therapeutic options in solid malignancies. This article reviews the role of PIK3CA mutations and inhibitors of PI3K/AKT/mTOR pathways in major cancer types and examines its association with clinicopathological parameters and prognosis.
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Zhang D, Zhang H, Wang X, Hu B, Zhang F, Wei H, Li L. LINC01518 knockdown inhibits tumorigenicity by suppression of PIK3CA/Akt pathway in oesophageal squamous cell carcinoma. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:4284-4292. [PMID: 31810385 DOI: 10.1080/21691401.2019.1699815] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
LncRNA LINC01518 was previously reported to be upregulated in oesophageal squamous cell carcinoma (ESCC) tissues compared with normal tissues. However, there are no previous studies concerning the specific function and molecular mechanism of LINC01518 in ESCC. LINC01518 and miR-1-3p expression levels in ESCC cells were detected by qRT-PCR. Cell proliferation and apoptosis were evaluated by CCK-8 and flow cytometry analysis, respectively. The relationships between LINC01518, phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit α (PIK3CA) and miR-1-3p were explored by luciferase reporter assay. The alteration of the PIK3CA/protein kinase B (Akt) pathway was examined by Western blot. We found that LINC01518 expression was upregulated and miR-1-3p expression was downregulated in ESCC cells. LINC01518 knockdown inhibited cell proliferation and promoted apoptosis in ESCC cells. In addition, LINC01518 functioned as a competing endogenous RNA (ceRNA) for miR-1-3p in ESCC cells and miR-1-3p downregulation blocked the effects of LINC01518 knockdown on cell proliferation and apoptosis in ESCC cells. Moreover, PIK3CA was identified as a target of miR-1-3p and LINC01518 knockdown inhibited the PIK3CA/Akt pathway by upregulating miR-1-3p in ESCC cells. In conclusion, LINC01518 knockdown inhibited tumorigenicity in ESCC cells by suppression of PIK3CA/Akt pathway through upregulating miR-1-3p.
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Affiliation(s)
- Donghong Zhang
- Department of Thoracic Surgery, Huaihe Hospital of Henan University, Kaifeng, P. R. China
| | - Haifeng Zhang
- Department of Thoracic Surgery, Huaihe Hospital of Henan University, Kaifeng, P. R. China
| | - Xiaolong Wang
- Department of Thoracic Surgery, Huaihe Hospital of Henan University, Kaifeng, P. R. China
| | - Baoli Hu
- Department of Thoracic Surgery, Huaihe Hospital of Henan University, Kaifeng, P. R. China
| | - Feng Zhang
- Department of Thoracic Surgery, Huaihe Hospital of Henan University, Kaifeng, P. R. China
| | - Haitao Wei
- Department of Thoracic Surgery, Huaihe Hospital of Henan University, Kaifeng, P. R. China
| | - Li Li
- School of Nursing and Health, Henan University, Kaifeng, P. R. China
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Munari FF, Cruvinel-Carloni A, Lacerda CF, de Oliveira ATT, Scapulatempo-Neto C, da Silva SRM, Crema E, Adad SJ, Rodrigues MAM, Henry MACA, Guimarães DP, Longatto-Filho A, Reis RM. PIK3CA mutations are frequent in esophageal squamous cell carcinoma associated with chagasic megaesophagus and are associated with a worse patient outcome. Infect Agent Cancer 2018; 13:43. [PMID: 30619505 PMCID: PMC6311070 DOI: 10.1186/s13027-018-0216-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 12/05/2018] [Indexed: 12/16/2022] Open
Abstract
Background Chronic diseases such as chagasic megaesophagus (secondary to Chagas’ disease) have been suggested as etiological factors for esophageal squamous cell carcinoma; however, the molecular mechanisms involved are poorly understood. Objective We analyzed hotspot PIK3CA gene mutations in a series of esophageal squamous cell carcinomas associated or not with chagasic megaesophagus, as well as, in chagasic megaesophagus biopsies. We also checked for correlations between the presence of PIK3CA mutations with patients’ clinical and pathological features. Methods The study included three different groups of patients: i) 23 patients with chagasic megaesophagus associated with esophageal squamous cell carcinoma (CM/ESCC); ii) 38 patients with esophageal squamous cell carcinoma not associated with chagasic megaesophagus (ESCC); and iii) 28 patients with chagasic megaesophagus without esophageal squamous cell carcinoma (CM). PIK3CA hotspot mutations in exons 9 and 20 were evaluated by PCR followed by direct sequencing technique. Results PIK3CA mutations were identified in 21.7% (5 out of 23) of CM/ESCC cases, in 10.5% (4 out of 38) of ESCC and in only 3.6% (1 case out of 28) of CM cases. In the CM/ESCC group, PIK3CA mutations were significantly associated with lower survival (mean 5 months), when compared to wild-type patients (mean 2.0 years). No other significant associations were observed between PIK3CA mutations and patients’ clinical features or TP53 mutation profile. Conclusion This is the first report on the presence of PIK3CA mutations in esophageal cancer associated with chagasic megaesophagus. The detection of PIK3CA mutations in benign chagasic megaesophagus lesions suggests their putative role in esophageal squamous cell carcinoma development and opens new opportunities for targeted-therapies for these diseases.
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Affiliation(s)
- Fernanda Franco Munari
- 1Molecular Oncology Research Center, Barretos Cancer Hospital, Rua Antenor Duarte Villela, 1331, Barretos, SP CEP 14784 400 Brazil
| | - Adriana Cruvinel-Carloni
- 1Molecular Oncology Research Center, Barretos Cancer Hospital, Rua Antenor Duarte Villela, 1331, Barretos, SP CEP 14784 400 Brazil
| | - Croider Franco Lacerda
- 1Molecular Oncology Research Center, Barretos Cancer Hospital, Rua Antenor Duarte Villela, 1331, Barretos, SP CEP 14784 400 Brazil.,2Department of Digestive Surgery, Barretos Cancer Hospital, Barretos, SP Brazil
| | | | - Cristovam Scapulatempo-Neto
- 1Molecular Oncology Research Center, Barretos Cancer Hospital, Rua Antenor Duarte Villela, 1331, Barretos, SP CEP 14784 400 Brazil.,3Department of Pathology, Diagnosis of Biopsies and Surgical Specimens, Barretos Cancer Hospital, Barretos, SP Brazil
| | - Sandra Regina Morini da Silva
- 3Department of Pathology, Diagnosis of Biopsies and Surgical Specimens, Barretos Cancer Hospital, Barretos, SP Brazil
| | - Eduardo Crema
- 4Department of Digestive Surgery and Pathology, Medical School, UFTM - Federal University of Triangulo Mineiro, Uberaba, Minas Gerais Brazil
| | - Sheila Jorge Adad
- 4Department of Digestive Surgery and Pathology, Medical School, UFTM - Federal University of Triangulo Mineiro, Uberaba, Minas Gerais Brazil
| | | | | | - Denise Peixoto Guimarães
- 1Molecular Oncology Research Center, Barretos Cancer Hospital, Rua Antenor Duarte Villela, 1331, Barretos, SP CEP 14784 400 Brazil.,6Department of Endoscopy, Barretos Cancer Hospital, Barretos, SP Brazil
| | - Adhemar Longatto-Filho
- 1Molecular Oncology Research Center, Barretos Cancer Hospital, Rua Antenor Duarte Villela, 1331, Barretos, SP CEP 14784 400 Brazil.,7Department of Radiology and Oncology, Medical School, USP - University of São Paulo, São Paulo, Brazil.,8Medical Laboratory of Medical Investigation (LIM) 14, Department of Pathology, Medical School, USP - University of São Paulo, São Paulo, Brazil.,9Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal
| | - Rui Manuel Reis
- 1Molecular Oncology Research Center, Barretos Cancer Hospital, Rua Antenor Duarte Villela, 1331, Barretos, SP CEP 14784 400 Brazil.,9Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal.,10ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
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Yokota T, Serizawa M, Hosokawa A, Kusafuka K, Mori K, Sugiyama T, Tsubosa Y, Koh Y. PIK3CA mutation is a favorable prognostic factor in esophageal cancer: molecular profile by next-generation sequencing using surgically resected formalin-fixed, paraffin-embedded tissue. BMC Cancer 2018; 18:826. [PMID: 30115035 PMCID: PMC6097210 DOI: 10.1186/s12885-018-4733-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 08/08/2018] [Indexed: 12/22/2022] Open
Abstract
Background Practical and reliable genotyping procedures with a considerable number of samples are required not only for risk-adapted therapeutic strategies, but also for stratifying patients into future clinical trials for molecular-targeting drugs. Recent advances in mutation testing, including next-generation sequencing, have led to the increased use of formalin-fixed paraffin-embedded tissue. We evaluated gene alteration profiles of cancer-related genes in esophageal cancer patients and correlated them with clinicopathological features, such as smoking status and survival outcomes. Methods Surgically resected formalin-fixed, paraffin-embedded tissue was collected from 135 consecutive patients with esophageal cancer who underwent esophagectomy. Based on the assessment of DNA quality with a quantitative PCR-based assay, uracil DNA glycosylase pretreatment was performed to ensure quality and accuracy of amplicon-based massively parallel sequencing. Amplicon-based massively parallel sequencing was performed using the Illumina TruSeq® Amplicon Cancer Panel. Gene amplification was detected by quantitative PCR-based assay. Protein expression was determined by automated quantitative fluorescent immunohistochemistry. Results Data on genetic alterations were available for 126 patients. The median follow-up time was 1570 days. Amplicon-based massively parallel sequencing identified frequent gene alterations in TP53 (66.7%), PIK3CA (13.5%), APC (10.3%), ERBB4 (7.9%), and FBXW7 (7.9%). There was no association between clinicopathological features or prognosis with smoking status. Multivariate analyses revealed that the PIK3CA mutation and clinical T stage were independent favorable prognostic factors (hazard ratio 0.34, 95% confidence interval: 0.12–0.96, p = 0.042). PIK3CA mutations were significantly associated with APC alterations (p = 0.0007) and BRAF mutations (p = 0.0090). Conclusions Our study provided profiles of cancer-related genes in Japanese patients with esophageal cancer by next-generation sequencing using surgically resected formalin-fixed, paraffin-embedded tissue, and identified the PIK3CA mutation as a favorable prognosis biomarker. Electronic supplementary material The online version of this article (10.1186/s12885-018-4733-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Tomoya Yokota
- Division of Gastrointestinal Oncology, Shizuoka Cancer Center, 1007 Shimonagakubo Nagaizumi-cho Sunto-gun, Shizuoka, 411-8777, Japan
| | - Masakuni Serizawa
- Drug Discovery and Development Division, Shizuoka Cancer Center Research Institute, 1007 Shimonagakubo Nagaizumi-cho Sunto-gun, Shizuoka, 411-8777, Japan
| | - Ayumu Hosokawa
- Department of Gastroenterology and Hematology, faculty of Medicine, University of Toyama, Toyama, Japan
| | - Kimihide Kusafuka
- Pathology Division, Shizuoka Cancer Center, 1007 Shimonagakubo Nagaizumi-cho Sunto-gun, Shizuoka, 411-8777, Japan
| | - Keita Mori
- Clinical Trial Coordination Office, Shizuoka Cancer Center, 1007 Shimonagakubo Nagaizumi-cho Sunto-gun, Shizuoka, 411-8777, Japan
| | - Toshiro Sugiyama
- Department of Gastroenterology and Hematology, faculty of Medicine, University of Toyama, Toyama, Japan
| | - Yasuhiro Tsubosa
- Division of Esophageal Surgery, Shizuoka Cancer Center, 1007 Shimonagakubo Nagaizumi-cho Sunto-gun, Shizuoka, 411-8777, Japan
| | - Yasuhiro Koh
- Drug Discovery and Development Division, Shizuoka Cancer Center Research Institute, 1007 Shimonagakubo Nagaizumi-cho Sunto-gun, Shizuoka, 411-8777, Japan. .,Third Department of Internal Medicine, Wakayama Medical University, 811-1, Kimiidera, Wakayama-city, Wakayama, 641-0012, Japan.
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Shi H, Shi J, Zhang Y, Guan C, Zhu J, Wang F, Xu M, Ju Q, Fang S, Jiang M. Long non-coding RNA DANCR promotes cell proliferation, migration, invasion and resistance to apoptosis in esophageal cancer. J Thorac Dis 2018; 10:2573-2582. [PMID: 29997918 PMCID: PMC6006063 DOI: 10.21037/jtd.2018.04.109] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Accepted: 04/06/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND Long non-coding RNAs (lncRNAs) have important effects on the development and progression of multiple carcinomas. Our studies aimed to investigate the expression of lncRNA DANCR in esophageal squamous cell carcinoma (ESCC) tissues and paracancerous tissues, and to explore its effect on the cell biological characteristics of ESCC ECA109 cells. METHODS The expression of DANCR was detected by qRT-PCR in human ESCC tissues and paracancerous normal tissues in ESCC patients. Small interfering RNA (siRNA) was transfected to knock down the expression of DANCR and interference efficiency was analyzed by qRT-PCR in ECA109 cells. MTT, wound healing, Transwell, TUNEL and flow cytometry (FCM) assay was used to measure the influence of DANCR on proliferation, invasion, migration and apoptosis in ECA109 cells, respectively. RESULTS The expression of DANCR in ESCC tissues and ESCC cells was significantly higher compared with that in the adjacent normal tissues (P<0.05). Furthermore, cell proliferation, migration and invasion were significantly suppressed by knock-down mediated down-regulation of DANCR expression. On the contrary, cell apoptosis was promoted by silencing of DANCR. CONCLUSIONS According to our research, the expression of DANCR was up-regulated in human ESCC tissues, and the important role that DANCR played in ESCC cells was similar to an oncogene. Therefore, silencing of lncRNA DANCR could have potentially beneficial effects on the prognostic and therapy for ESCC in the future.
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Affiliation(s)
- Hui Shi
- Laboratory Animals Center, Nantong University, Nantong 226001, China
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Jiahai Shi
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Yudong Zhang
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Chengqi Guan
- Department of Gastroenterology, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Jun Zhu
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Fei Wang
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Mingming Xu
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Qianqian Ju
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Shu Fang
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Maorong Jiang
- Laboratory Animals Center, Nantong University, Nantong 226001, China
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