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Liu K, Lu H, Jiang D, Guan Y, Xu H, Sun Q, Jiang Q, Zheng J, Chen H, Zhang F, Luo R, Huang Y, Xu J, Hou Y. Prognostic Significance of CDK6 Amplification in Esophageal Squamous Cell Carcinoma. Cancer Treat Res Commun 2023; 35:100698. [PMID: 37023643 DOI: 10.1016/j.ctarc.2023.100698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 03/13/2023] [Accepted: 03/14/2023] [Indexed: 03/17/2023]
Abstract
Dysregulation of CDK6 plays crucial roles in the carcinogenesis of many kinds of human malignancies. However, the role of CDK6 in esophageal squamous cell carcinoma (ESCC) is not well known. We investigated the frequency and prognostic value of CDK6 amplification to improve the risk stratification in patients with ESCC. Pan-cancer analysis of CDK6 was conducted on The Cancer Genome Atlas (TCGA), Genotype-Tissue Expression (GTEx) and Gene Expression Omnibus (GEO) databases. CDK6 amplification was detected in 502 ESCC samples by Fluorescence in situ hybridization (FISH) through tissue microarrays (TMA). Pan-cancer analysis revealed that CDK6 mRNA level was much higher in multiple kinds of cancers and higher CDK6 mRNA level indicated a better prognosis in ESCC. In this study, CDK6 amplification was detected in 27.5% (138/502) of patients with ESCC. CDK6 amplification was significantly correlated with tumor size (p = 0.044). Patients with CDK6 amplification tended to have a longer disease-free survival (DFS) (p = 0.228) and overall survival (OS) (p = 0.200) compared with patients without CDK6 amplification but of no significance. When further divided into I-II and III-IV stage, CDK6 amplification was significantly associated with longer DFS and OS in III-IV stage group (DFS, p = 0.036; OS, p = 0.022) rather than in I-II stage group (DFS, p = 0.776; OS, p = 0.611). On univariate and multivariate analysis of Cox hazard model, differentiation, vessel invasion, nerve invasion, invasive depth, lymph node metastasis and clinical stage were significantly associated with DFS and OS. Moreover, invasion depth was an independent factor for ESCC prognosis. Taken together, for ESCC patients in III-IV stage, CDK6 amplification indicated a better prognosis.
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Affiliation(s)
- Kun Liu
- Department of Pathology, Zhongshan Hospital, Fudan University, Xiamen Branch, Xiamen City, Fujian Province, China; Xiamen Clinical Research Center for Cancer Therapy, Xiamen City, Fujian Province, China
| | - Huadong Lu
- Department of Pathology, Zhongshan Hospital, Fudan University, Xiamen Branch, Xiamen City, Fujian Province, China; Xiamen Clinical Research Center for Cancer Therapy, Xiamen City, Fujian Province, China
| | - Dongxian Jiang
- Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yingying Guan
- Department of Pathology, Zhongshan Hospital, Fudan University, Xiamen Branch, Xiamen City, Fujian Province, China; Xiamen Clinical Research Center for Cancer Therapy, Xiamen City, Fujian Province, China
| | - Huijuan Xu
- Department of Pathology, Zhongshan Hospital, Fudan University, Xiamen Branch, Xiamen City, Fujian Province, China; Xiamen Clinical Research Center for Cancer Therapy, Xiamen City, Fujian Province, China
| | - Qi Sun
- Department of Pathology, Zhongshan Hospital, Fudan University, Xiamen Branch, Xiamen City, Fujian Province, China; Xiamen Clinical Research Center for Cancer Therapy, Xiamen City, Fujian Province, China
| | - Qiuli Jiang
- Department of Pathology, Zhongshan Hospital, Fudan University, Xiamen Branch, Xiamen City, Fujian Province, China; Xiamen Clinical Research Center for Cancer Therapy, Xiamen City, Fujian Province, China
| | - Jingmei Zheng
- Department of Pathology, Zhongshan Hospital, Fudan University, Xiamen Branch, Xiamen City, Fujian Province, China; Xiamen Clinical Research Center for Cancer Therapy, Xiamen City, Fujian Province, China
| | - Huan Chen
- Department of Pathology, Zhongshan Hospital, Fudan University, Xiamen Branch, Xiamen City, Fujian Province, China; Xiamen Clinical Research Center for Cancer Therapy, Xiamen City, Fujian Province, China
| | - Fuhan Zhang
- Department of Pathology, Zhongshan Hospital, Fudan University, Xiamen Branch, Xiamen City, Fujian Province, China; Xiamen Clinical Research Center for Cancer Therapy, Xiamen City, Fujian Province, China
| | - Ruichen Luo
- Department of Pathology, Zhongshan Hospital, Fudan University, Xiamen Branch, Xiamen City, Fujian Province, China; Xiamen Clinical Research Center for Cancer Therapy, Xiamen City, Fujian Province, China
| | - Ying Huang
- Department of Pathology, Zhongshan Hospital, Fudan University, Xiamen Branch, Xiamen City, Fujian Province, China; Xiamen Clinical Research Center for Cancer Therapy, Xiamen City, Fujian Province, China
| | - Jianfang Xu
- Department of Pathology, Zhongshan Hospital, Fudan University, Xiamen Branch, Xiamen City, Fujian Province, China; Xiamen Clinical Research Center for Cancer Therapy, Xiamen City, Fujian Province, China; Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai, China.
| | - Yingyong Hou
- Department of Pathology, Zhongshan Hospital, Fudan University, Xiamen Branch, Xiamen City, Fujian Province, China; Xiamen Clinical Research Center for Cancer Therapy, Xiamen City, Fujian Province, China; Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai, China.
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Abboud HS, Camuzi D, Rapozo DC, Fernandes PV, Nicolau-Neto P, Guaraldi S, Simão TA, Ribeiro Pinto LF, Gonzaga IM, Soares-Lima SC. MET overexpression and intratumor heterogeneity in esophageal squamous cell carcinoma. ACTA ACUST UNITED AC 2021; 54:e10877. [PMID: 34037097 PMCID: PMC8148886 DOI: 10.1590/1414-431x2020e10877] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 03/11/2021] [Indexed: 12/24/2022]
Abstract
Esophageal squamous cell carcinoma (ESCC) is among the ten most frequent and deadly cancers, without effective therapies for most patients. More recently, drugs targeting deregulated growth factor signaling receptors have been developed, such as HGF-MET targeted therapy. We assessed MET and HGF genetic alterations and gene and protein expression profiles in ESCC patients from the Brazilian National Cancer Institute and publicly available datasets, as well as the intratumor heterogeneity of the alterations found. Our analyses showed that HGF and MET genetic alterations, both copy number and mutations, are not common in ESCC, affecting 5 and 6% of the cases, respectively. HGF showed a variable mRNA expression profile between datasets, with no alterations (GSE20347), downregulation (GSE45670), and upregulation in ESCC (our dataset and GSE75241). On the other hand, MET was found consistently upregulated in ESCC compared to non-tumor surrounding tissue, with median fold-changes of 5.96 (GSE20347), 3.83 (GSE45670), 6.02 (GSE75241), and 5.0 (our dataset). Among our patients, 84% of the tumors showed at least a two-fold increase in MET expression. This observation was corroborated by protein levels, with 55% of cases exhibiting positivity in 100% of the tumor cells. Intratumor heterogeneity was evaluated in at least four tumor biopsies from five patients and two cases showed a consistent increase in MET expression (at least two-fold) in all tumor samples. Our data suggested that HGF-MET signaling pathway was likely to be overactivated in ESCC, representing a potential therapeutic target, but eligibility for this therapy should consider intratumor heterogeneity.
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Affiliation(s)
- H S Abboud
- Programa de Carcinogênese Molecular, Instituto Nacional de Câncer, Coordenação de Pesquisa, Rio de Janeiro, RJ, Brasil
| | - D Camuzi
- Programa de Carcinogênese Molecular, Instituto Nacional de Câncer, Coordenação de Pesquisa, Rio de Janeiro, RJ, Brasil
| | - D C Rapozo
- Divisão de Patologia, Instituto Nacional de Câncer, Rio de Janeiro, RJ, Brasil
| | - P V Fernandes
- Divisão de Patologia, Instituto Nacional de Câncer, Rio de Janeiro, RJ, Brasil
| | - P Nicolau-Neto
- Programa de Carcinogênese Molecular, Instituto Nacional de Câncer, Coordenação de Pesquisa, Rio de Janeiro, RJ, Brasil
| | - S Guaraldi
- Programa de Carcinogênese Molecular, Instituto Nacional de Câncer, Coordenação de Pesquisa, Rio de Janeiro, RJ, Brasil
| | - T A Simão
- Departamento de Bioquímica, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - L F Ribeiro Pinto
- Programa de Carcinogênese Molecular, Instituto Nacional de Câncer, Coordenação de Pesquisa, Rio de Janeiro, RJ, Brasil.,Departamento de Bioquímica, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - I M Gonzaga
- Programa de Carcinogênese Molecular, Instituto Nacional de Câncer, Coordenação de Pesquisa, Rio de Janeiro, RJ, Brasil
| | - S C Soares-Lima
- Programa de Carcinogênese Molecular, Instituto Nacional de Câncer, Coordenação de Pesquisa, Rio de Janeiro, RJ, Brasil
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Schmidt U, Heller G, Timelthaler G, Heffeter P, Somodi Z, Schweifer N, Sibilia M, Berger W, Csiszar A. The FAM3C locus that encodes interleukin-like EMT inducer (ILEI) is frequently co-amplified in MET-amplified cancers and contributes to invasiveness. J Exp Clin Cancer Res 2021; 40:69. [PMID: 33596971 PMCID: PMC7890988 DOI: 10.1186/s13046-021-01862-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 02/01/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Gene amplification of MET, which encodes for the receptor tyrosine kinase c-MET, occurs in a variety of human cancers. High c-MET levels often correlate with poor cancer prognosis. Interleukin-like EMT inducer (ILEI) is also overexpressed in many cancers and is associated with metastasis and poor survival. The gene for ILEI, FAM3C, is located close to MET on chromosome 7q31 in an amplification "hotspot", but it is unclear whether FAMC3 amplification contributes to elevated ILEI expression in cancer. In this study we have investigated FAMC3 copy number gain in different cancers and its potential connection to MET amplifications. METHODS FAMC3 and MET copy numbers were investigated in various cancer samples and 200 cancer cell lines. Copy numbers of the two genes were correlated with mRNA levels, with relapse-free survival in lung cancer patient samples as well as with clinicopathological parameters in primary samples from 49 advanced stage colorectal cancer patients. ILEI knock-down and c-MET inhibition effects on proliferation and invasiveness of five cancer cell lines and growth of xenograft tumors in mice were then investigated. RESULTS FAMC3 was amplified in strict association with MET amplification in several human cancers and cancer cell lines. Increased FAM3C and MET copy numbers were tightly linked and correlated with increased gene expression and poor survival in human lung cancer and with extramural invasion in colorectal carcinoma. Stable ILEI shRNA knock-down did not influence proliferation or sensitivity towards c-MET-inhibitor induced proliferation arrest in cancer cells, but impaired both c-MET-independent and -dependent cancer cell invasion. c-MET inhibition reduced ILEI secretion, and shRNA mediated ILEI knock-down prevented c-MET-signaling induced elevated expression and secretion of matrix metalloproteinase (MMP)-2 and MMP-9. Combination of ILEI knock-down and c-MET-inhibition significantly reduced the invasive outgrowth of NCI-H441 and NCI-H1993 lung tumor xenografts by inhibiting proliferation, MMP expression and E-cadherin membrane localization. CONCLUSIONS These novel findings suggest MET amplifications are often in reality MET-FAM3C co-amplifications with tight functional cooperation. Therefore, the clinical relevance of this frequent cancer amplification hotspot, so far dedicated purely to c-MET function, should be re-evaluated to include ILEI as a target in the therapy of c-MET-amplified human carcinomas.
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Affiliation(s)
- Ulrike Schmidt
- Research Institute of Molecular Pathology, Dr. Bohr-Gasse 3, A-1030 Vienna, Austria
| | - Gerwin Heller
- Department of Medicine I, Division of Oncology, Medical University of Vienna, Währinger Gürtel 18-20, A-1090 Vienna, Austria
| | - Gerald Timelthaler
- Department of Medicine I, Institute of Cancer Research, Medical University of Vienna, Borschkegasse 8a, A-1090 Vienna, Austria
| | - Petra Heffeter
- Department of Medicine I, Institute of Cancer Research, Medical University of Vienna, Borschkegasse 8a, A-1090 Vienna, Austria
| | - Zsolt Somodi
- Department of Oncology, Bacs-Kiskun County Teaching Hospital, Kecskemet, Hungary
- Present Address: Parexel International, 2 Federal St, Billerica, MA USA
| | | | - Maria Sibilia
- Department of Medicine I, Institute of Cancer Research, Medical University of Vienna, Borschkegasse 8a, A-1090 Vienna, Austria
| | - Walter Berger
- Department of Medicine I, Institute of Cancer Research, Medical University of Vienna, Borschkegasse 8a, A-1090 Vienna, Austria
| | - Agnes Csiszar
- Department of Medicine I, Institute of Cancer Research, Medical University of Vienna, Borschkegasse 8a, A-1090 Vienna, Austria
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