Antitumor efficacy of Kisspeptin in human malignant mesothelioma cells
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Vincenza Ciaramella1, Carminia Maria Della Corte1, Concetta Di Mauro2, Stefano Tomassi3, Salvatore Di Maro3, Teresa Troiani1, Erika Martinelli1, Roberto Bianco2, Sandro Cosconati3, Riccardo Pierantoni4, Rosaria Meccariello5, Rosanna Chianese4, Fortunato Ciardiello1 and Floriana Morgillo1
1Oncologia Medica, Dipartimento di Internistica Clinica e Sperimentale “F. Magrassi”, Università degli Studi della Campania Luigi Vanvitelli, Naples, Italy
2Oncologia Medica, Dipartimento di Medicina Clinica e Chirurgia, Università degli Studi di Napoli “Federico II”, Naples, Italy
3DISTABIF, Università degli Studi della Campania Luigi Vanvitelli, Caserta, Italy
4Dipartimento di Medicina Sperimentale sez ‘F. Bottazzi’, Università degli Studi della Campania Luigi Vanvitelli, Naples, Italy
5Dipartimento di Scienze Motorie e del Benessere, Università di Napoli Parthenope, Napoli, Italy
Floriana Morgillo, email: firstname.lastname@example.org
Keywords: mesothelioma; KiSS1; biomarker; metastasis; EMT
Received: February 03, 2018 Accepted: February 27, 2018 Published: April 10, 2018
Purpose: Kisspeptin signaling, via its receptors GPR54, could be an essential players in the inhibition of mesothelioma progression, invasion and metastasis formation. The loss of KiSS1 by tumor cells has been associated with a metastatic phenotype but the mechanistic insights of this process are still unknown.
Experimental design: The blockade of the metastatic process at early stage is a hot topic in cancer research. We studied the role of KiSS1 on proliferation, invasiveness, migration abilities of mesothelioma cell lines focusing on the effect on epithelial-to-mesenchymal transition (EMT).
Results: Treatment with the KiSS1 peptide or with a synthesis peptide with longer half-life, the FTM080, significantly inhibited cell proliferation, migration and invasion of mesothelioma cell lines; the same treatment reduced the activity of MMP-2 and MMP-9 determining consequently a marked reduction in the invasiveness of primary tumors and metastases. Thespecificexpression of EMT markers, as E-caderin, Vimentin, Slug and Snail, suggested the inhibition of EMT after treatment with KiSS1 as well as the preservation of epithelial components.
Conclusion: Our results support anti-proliferative effect of KiSS1 in cancer cells and suggest that targeting the KiSS1/GPR54 system may represent a novel therapeutic approach for mesothelioma.
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