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Felice F, Piras AM, Rocchiccioli S, Barsotti MC, Santoni T, Pucci A, Burchielli S, Chiellini F, Ucciferri N, Solaro R, Altomare A, Cecchettini A, Di Stefano R. Endothelial progenitor cell secretome delivered by novel polymeric nanoparticles in ischemic hindlimb. Int J Pharm 2018. [PMID: 29526620 DOI: 10.1016/j.ijpharm.2018.03.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Endothelial progenitor cells (EPCs) contribute to ischemic tissue repair by paracrine secretion up-regulated by hypoxia. In this study we use novel nanoparticles (NPs) as carriers for a controlled release of EPC secretome (CM) to improve their angiogenic properties. The in vivo effect in ischemic hindlimb rat model was evaluated, comparing hypoxic EPC-CM-NPs with hypoxic EPC-CM alone. A proteomic characterization of hypoxic CM and the in vitro effect on endothelial cells (HUVECs) were also performed. Up to 647 protein, 17 of which with angiogenic properties, were upregulated by hypoxia. Moreover, hypoxic EPC-CM significantly promoted capillary-like structures on Matrigel. A significant increase of blood perfusion in ischemic limbs at 2 weeks with EPC-CM-loaded NPs as compared to both EPC-CM and control and a significant increase of capillary formation were observed. The use of EPC-CM-NPs significantly improved neoangiogenesis in vivo, underlining the advantages of controlled release in regenerative medicine.
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Affiliation(s)
- Francesca Felice
- Laboratory of Cardiovascular Research, Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, University of Pisa, Pisa, Italy
| | - Anna Maria Piras
- Laboratory of Bioactive Polymeric Materials for Biomedical and Environmental Applications (BIOLab), Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Italy
| | | | - Maria Chiara Barsotti
- Laboratory of Cardiovascular Research, Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, University of Pisa, Pisa, Italy
| | - Tatiana Santoni
- Laboratory of Cardiovascular Research, Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, University of Pisa, Pisa, Italy
| | - Angela Pucci
- Histopathology Department, University Hospital, Pisa, Italy
| | - Silvia Burchielli
- Tuscany Gabriele Monasterio Foundation and Center of Experimental Biomedicine, CNR-National Research Council, Pisa, Italy
| | - Federica Chiellini
- Laboratory of Bioactive Polymeric Materials for Biomedical and Environmental Applications (BIOLab), Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Italy
| | | | - Roberto Solaro
- Laboratory of Bioactive Polymeric Materials for Biomedical and Environmental Applications (BIOLab), Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Italy
| | - Angelina Altomare
- Laboratory of Bioactive Polymeric Materials for Biomedical and Environmental Applications (BIOLab), Department of Chemistry and Industrial Chemistry, University of Pisa, Pisa, Italy
| | - Antonella Cecchettini
- Institute of Clinical Physiology, CNR, Pisa, Italy; Department of Clinical and Experimental Medicine, University of Pisa, Italy
| | - Rossella Di Stefano
- Laboratory of Cardiovascular Research, Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, University of Pisa, Pisa, Italy.
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Lapi AM, Altomare A, Chiellini F, Solaro R. Poly(ethylene glycol) derivatives containing periodic side-chain carboxyl groups: synthesis and characterization. POLYM INT 2014. [DOI: 10.1002/pi.4827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Anna Maria Lapi
- Department of Chemistry and Industrial Chemistry; University of Pisa; G. Moruzzi 3 56124 Pisa Italy
| | - Angelina Altomare
- Department of Chemistry and Industrial Chemistry; University of Pisa; G. Moruzzi 3 56124 Pisa Italy
| | - Federica Chiellini
- Department of Chemistry and Industrial Chemistry; University of Pisa; G. Moruzzi 3 56124 Pisa Italy
| | - Roberto Solaro
- Department of Chemistry and Industrial Chemistry; University of Pisa; G. Moruzzi 3 56124 Pisa Italy
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