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Russo Spena C, De Stefano L, Palazzolo S, Salis B, Granchi C, Minutolo F, Tuccinardi T, Fratamico R, Crotti S, D'Aronco S, Agostini M, Corona G, Caligiuri I, Canzonieri V, Rizzolio F. Liposomal delivery of a Pin1 inhibitor complexed with cyclodextrins as new therapy for high-grade serous ovarian cancer. J Control Release 2018; 281:1-10. [PMID: 29746956 DOI: 10.1016/j.jconrel.2018.04.055] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 04/28/2018] [Accepted: 04/30/2018] [Indexed: 12/28/2022]
Abstract
Pin1, a prolyl isomerase that sustains tumor progression, is overexpressed in different types of malignancies. Functional inactivation of Pin1 restrains tumor growth and leaves normal cells unaffected making it an ideal pharmaceutical target. Although many studies on Pin1 have focused on malignancies that are influenced by sex hormones, studies in ovarian cancer have lagged behind. Here, we show that Pin1 is an important therapeutic target in high-grade serous epithelial ovarian cancer. Knock down of Pin1 in ovarian cancer cell lines induces apoptosis and restrains tumor growth in a syngeneic mouse model. Since specific and non-covalent Pin1 inhibitors are still limited, the first liposomal formulation of a Pin1 inhibitor was designed. The drug was efficiently encapsulated in modified cyclodextrins and remotely loaded into pegylated liposomes. This liposomal formulation accumulates preferentially in the tumor and has a desirable pharmacokinetic profile. The liposomal inhibitor was able to alter Pin1 cancer driving-pathways trough the induction of proteasome-dependent degradation of Pin1 and was found to be effective in curbing ovarian tumor growth in vivo.
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Affiliation(s)
- Concetta Russo Spena
- Department of Translational Research, Experimental and Clinical Pharmacology, Center for Molecular Biomedicine - CRO, National Cancer Institute, Aviano, Italy; Doctoral School in Chemistry, University of Trieste, Italy
| | - Lucia De Stefano
- Department of Translational Research, Experimental and Clinical Pharmacology, Center for Molecular Biomedicine - CRO, National Cancer Institute, Aviano, Italy; Doctoral School in Chemistry, University of Trieste, Italy
| | - Stefano Palazzolo
- Department of Translational Research, Experimental and Clinical Pharmacology, Center for Molecular Biomedicine - CRO, National Cancer Institute, Aviano, Italy
| | - Barbara Salis
- Doctoral School in Molecular Biomedicine, University of Trieste, Italy; Department of Molecular Biology and Translational Research, Pathology Unit, Center for Molecular Biomedicine - CRO, National Cancer Institute, Aviano, Italy
| | | | | | | | - Roberto Fratamico
- Department of Medical Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, USA
| | - Sara Crotti
- Città della Speranza, Institute of Pediatric Research, Padova, Italy
| | - Sara D'Aronco
- Città della Speranza, Institute of Pediatric Research, Padova, Italy; Department of Surgical, Oncological and Gastroenterological Sciences, First Surgical Clinic Section, University of Padova, Italy
| | - Marco Agostini
- Città della Speranza, Institute of Pediatric Research, Padova, Italy; Department of Surgical, Oncological and Gastroenterological Sciences, First Surgical Clinic Section, University of Padova, Italy
| | - Giuseppe Corona
- Department of Molecular Biology and Translational Research, Immunopathology and Cancer Biomarkers Unit, Center for Molecular Biomedicine - CRO, National Cancer Institute, Aviano, Italy
| | - Isabella Caligiuri
- Department of Molecular Biology and Translational Research, Pathology Unit, Center for Molecular Biomedicine - CRO, National Cancer Institute, Aviano, Italy
| | - Vincenzo Canzonieri
- Department of Molecular Biology and Translational Research, Pathology Unit, Center for Molecular Biomedicine - CRO, National Cancer Institute, Aviano, Italy
| | - Flavio Rizzolio
- Department of Translational Research, Experimental and Clinical Pharmacology, Center for Molecular Biomedicine - CRO, National Cancer Institute, Aviano, Italy; Department of Molecular Sciences and Nanosystems, Ca' Foscari University, Venezia-Mestre, Italy.
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