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Scatolini M, Patel A, Grosso E, Mello-Grand M, Ostano P, Coppo R, Vitiello M, Venesio T, Zaccagna A, Pisacane A, Sarotto I, Taverna D, Poliseno L, Bergamaschi D, Chiorino G. GJB5 association with BRAF mutation and survival in cutaneous malignant melanoma. Br J Dermatol 2021; 186:117-128. [PMID: 34240406 DOI: 10.1111/bjd.20629] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/03/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND Gap junctional intercellular communication is crucial for epidermal cellular homeostasis. Inability to establish melanocyte-keratinocytes contacts and loss of intercellular junction's integrity may contribute to melanoma development. Connexins, laminins and desmocollins have been implicated in the control of melanoma growth, where their reduced expression has been reported in metastatic lesions. OBJECTIVES The aim of this study was to investigate Connexin 31.1 (GJB5) expression and identify any association with BRAF mutational status, melanoma patient prognosis and MAPK inhibitors (MAPKi) treatment. MATERIAL AND METHODS GJB5 expression was measured at RNA and protein level in melanoma clinical samples and established cell lines treated or not with BRAF and MEK inhibitors, as well as in cell lines which developed MAPK inhibitors resistance. Findings were further validated and confirmed by analysis of independent datasets. RESULTS Our analysis reveals significant downregulation of GJB5 expression in metastatic melanoma lesions compared to primary ones and in BRAF mutated versus BRAF wild-type melanomas. Likewise, GJB5 expression is significantly lower in BRAFV600E compared with BRAFWT cell lines and increases upon MAPKi treatment. MAPKi-resistant melanoma cells display a similar expression pattern compared to BRAFWT cells, with increased GJB5 expression associated with morphological changes. Enhancement of BRAFV600E expression in BRAFWT melanoma cells significantly upregulates miR-335-5p expression with consequent downregulation of GJB5, one of its targets. Furthermore, overexpression of miR-335-5p in two BRAFWT cell lines confirms specific GJB5 protein downregulation. RT-qPCR analysis also revealed upregulation of miR-335 in BRAFV600E melanoma cells, which is significantly downregulated in cells resistant to MEK inhibitors. Our data were further validated using the TCGA-SKCM dataset, where BRAF mutations associate with increased miR-335 expression and inversely correlate with GJB5 expression. In clinical samples, GJB5 underexpression is also associated with patient overall worse survival, especially at early stages. CONCLUSION We identified a significant association between metastases / BRAF mutation and low GJB5 expression in melanoma. Our results identify a novel mechanism of Gap-junctional protein regulation, suggesting a prognostic role for GJB5 in cutaneous melanoma.
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Affiliation(s)
- M Scatolini
- Molecular Oncology Laboratory, Fondazione Edo ed Elvo Tempia, 13875, Ponderano, BI, Italy
| | - A Patel
- Centre for Cell Biology and Cutaneous Research, Blizard Institute, Barts and The London SMD, QMUL, London, E1 2AT, UK
| | - E Grosso
- Molecular Oncology Laboratory, Fondazione Edo ed Elvo Tempia, 13875, Ponderano, BI, Italy
| | - M Mello-Grand
- Cancer Genomics Laboratory, Fondazione Edo ed Elvo Tempia, 13900, Biella, Italy
| | - P Ostano
- Cancer Genomics Laboratory, Fondazione Edo ed Elvo Tempia, 13900, Biella, Italy
| | - R Coppo
- Molecular Biotechnology Centre, 10126, Torino, Italy.,Department of Clinical Bio-Resource Research and Development, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - M Vitiello
- Oncogenomics Unit, Core Research Laboratory, Istituto Toscano Tumori, Institute of Clinical Physiology, CNR, 56124, Pisa, Italy
| | - T Venesio
- Pathology and Dermosurgery Units, Candiolo Cancer Institute (FPO-IRCCS), 10060, Candiolo, Turin, Italy
| | - A Zaccagna
- Pathology and Dermosurgery Units, Candiolo Cancer Institute (FPO-IRCCS), 10060, Candiolo, Turin, Italy
| | - A Pisacane
- Pathology and Dermosurgery Units, Candiolo Cancer Institute (FPO-IRCCS), 10060, Candiolo, Turin, Italy
| | - I Sarotto
- Pathology and Dermosurgery Units, Candiolo Cancer Institute (FPO-IRCCS), 10060, Candiolo, Turin, Italy
| | - D Taverna
- Molecular Biotechnology Centre, 10126, Torino, Italy
| | - L Poliseno
- Oncogenomics Unit, Core Research Laboratory, Istituto Toscano Tumori, Institute of Clinical Physiology, CNR, 56124, Pisa, Italy
| | - D Bergamaschi
- Centre for Cell Biology and Cutaneous Research, Blizard Institute, Barts and The London SMD, QMUL, London, E1 2AT, UK
| | - G Chiorino
- Cancer Genomics Laboratory, Fondazione Edo ed Elvo Tempia, 13900, Biella, Italy
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Rossi G, Coco S, Longo L, Chiorino G, Ostano P, Bello MD, Grassi M, Venturi C, Mastracci L, Tagliamento M, Dellepiane C, Zullo L, Beshiri K, Alama A, Bennicelli E, Bottini A, Pronzato P, Genova C. 1216P A circulating exosomal miRNA-based risk score as a predictive biomarker of relapse in early stage non-small cell lung cancer. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Scatolini M, Grosso E, Mello-Grand M, Ostano P, Coppo R, Patel A, Vitiello M, Venesio T, Zaccagna A, Pisacane A, Sarotto I, Taverna D, Poliseno L, Chiorino G, Bergamaschi D. 476 GJB5 association with BRAF mutation and survival in cutaneous melanoma. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Peraldo-Neia C, Ostano P, Cavalloni G, Pignochino Y, Sangiolo D, De Cecco L, Marchesi E, Ribero D, Scarpa A, De Rose AM, Giuliani A, Calise F, Raggi C, Invernizzi P, Aglietta M, Chiorino G, Leone F. Transcriptomic analysis and mutational status of IDH1 in paired primary-recurrent intrahepatic cholangiocarcinoma. BMC Genomics 2018; 19:440. [PMID: 29871612 PMCID: PMC5989353 DOI: 10.1186/s12864-018-4829-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 05/25/2018] [Indexed: 12/14/2022] Open
Abstract
Background Effective target therapies for intrahepatic cholangiocarcinoma (ICC) have not been identified so far. One of the reasons may be the genetic evolution from primary (PR) to recurrent (REC) tumors. We aim to identify peculiar characteristics and to select potential targets specific for recurrent tumors. Eighteen ICC paired PR and REC tumors were collected from 5 Italian Centers. Eleven pairs were analyzed for gene expression profiling and 16 for mutational status of IDH1. For one pair, deep mutational analysis by Next Generation Sequencing was also carried out. An independent cohort of patients was used for validation. Results Two class-paired comparison yielded 315 differentially expressed genes between REC and PR tumors. Up-regulated genes in RECs are involved in RNA/DNA processing, cell cycle, epithelial to mesenchymal transition (EMT), resistance to apoptosis, and cytoskeleton remodeling. Down-regulated genes participate to epithelial cell differentiation, proteolysis, apoptotic, immune response, and inflammatory processes. A 24 gene signature is able to discriminate RECs from PRs in an independent cohort; FANCG is statistically associated with survival in the chol-TCGA dataset. IDH1 was mutated in the RECs of five patients; 4 of them displayed the mutation only in RECs. Deep sequencing performed in one patient confirmed the IDH1 mutation in REC. Conclusions RECs are enriched for genes involved in EMT, resistance to apoptosis, and cytoskeleton remodeling. Key players of these pathways might be considered druggable targets in RECs. IDH1 is mutated in 30% of RECs, becoming both a marker of progression and a target for therapy. Electronic supplementary material The online version of this article (10.1186/s12864-018-4829-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- C Peraldo-Neia
- Medical Oncology Division, Candiolo Cancer Institute - FPO, IRCCS, Str. Prov. 142, km 3.95, 10060, Candiolo, Turin, Italy. .,Cancer Genomics Lab, Fondazione Edo ed Elvo Tempia Valenta, Biella, Italy.
| | - P Ostano
- Cancer Genomics Lab, Fondazione Edo ed Elvo Tempia Valenta, Biella, Italy
| | - G Cavalloni
- Medical Oncology Division, Candiolo Cancer Institute - FPO, IRCCS, Str. Prov. 142, km 3.95, 10060, Candiolo, Turin, Italy
| | - Y Pignochino
- Department of Oncology, University of Turin, Torino, Italy
| | - D Sangiolo
- Medical Oncology Division, Candiolo Cancer Institute - FPO, IRCCS, Str. Prov. 142, km 3.95, 10060, Candiolo, Turin, Italy.,Department of Oncology, University of Turin, Torino, Italy
| | - L De Cecco
- Functional Genomics and Bioinformatics, Department of Applied Research and Technology Development, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - E Marchesi
- Functional Genomics and Bioinformatics, Department of Applied Research and Technology Development, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - D Ribero
- Division of Hepatobilio-Pancreatic and Colorectal Surgery, Candiolo Cancer Institute - FPO, IRCCS, Str. Prov. 142, km 3.95, Candiolo, Italy
| | - A Scarpa
- ARC-Net Research Centre and Department of Diagnostics and Public Health - Section of Pathology, University and Hospital Trust of Verona, Verona, Italy
| | - A M De Rose
- Hepatobiliary Surgery Unit, Gemelli Hospital, Catholic University of the Sacred Heart, Rome, Italy
| | - A Giuliani
- Department of Health's Sciences and Medicine "V. Tiberio", University of Molise, Campobasso, Italy
| | - F Calise
- Hepatobiliary and Liver Transplant Unit, Cardarelli Hospital, Naples, Italy
| | - C Raggi
- Center for Autoimmune Liver Diseases, Humanitas Clinical and Research Center, Rozzano, Italy.,Department of Experimental and Clinical Medicine, University of Firenze, Florence, Italy
| | - P Invernizzi
- Center for Autoimmune Liver Diseases, Humanitas Clinical and Research Center, Rozzano, Italy.,UOC di Gastroenterologia, Azienda Ospedaliera San Gerardo, Monza, Italy
| | - M Aglietta
- Medical Oncology Division, Candiolo Cancer Institute - FPO, IRCCS, Str. Prov. 142, km 3.95, 10060, Candiolo, Turin, Italy.,Department of Oncology, University of Turin, Torino, Italy
| | - G Chiorino
- Cancer Genomics Lab, Fondazione Edo ed Elvo Tempia Valenta, Biella, Italy
| | - F Leone
- Medical Oncology Division, Candiolo Cancer Institute - FPO, IRCCS, Str. Prov. 142, km 3.95, 10060, Candiolo, Turin, Italy. .,Department of Oncology, University of Turin, Torino, Italy.
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