title: Personalized liposome-protein corona in the blood of breast, gastric and pancreatic cancer patients.
abstract: When nanoparticles (NPs) are dispersed in a biofluid, they are covered by a protein corona the composition of which strongly depends on the protein source. Recent studies demonstrated that the type of disease has a crucial role in the protein composition of the NP corona with relevant implications on personalized medicine. Proteomic variations frequently occur in cancer with the consequence that the bio-identity of NPs in the blood of cancer patients may differ from that acquired after administration to healthy volunteers. In this study we investigated the correlation between alterations of plasma proteins in breast, gastric and pancreatic cancer and the biological identity of clinically approved AmBisome-like liposomes as determined by a combination of dynamic light scattering, zeta potential analysis, one-dimensional sodium dodecyl sulfate polyacrylamide gel electrophoresis (1D-SDS-PAGE) and semi-quantitative densitometry. While size of liposome-protein complexes was not significantly different between cancer groups, the hard corona from pancreatic cancer patients was significantly less negatively charged. Of note, the hard corona from pancreatic cancer patients was more enriched than those of other cancer types this enrichment being most likely due to IgA and IgG with possible correlations with the autoantibodies productions in cancer. Given the strict relationship between tumor antigen-specific autoantibodies and early cancer detection, our results could be the basis for the development of novel nanoparticle-corona-based screening tests of cancer.
authors.affiliation: Istituto Italiano di Tecnologia, Center for Life Nano Science@Sapienza, Viale Regina Elena 291, 00161 Rome, Italy.
authors.forename: Valentina
authors.initials: V
authors.lastname: Colapicchioni
authors.affiliation: School of Biosciences and Veterinary Medicine, University of Camerino, Via Gentile III da Varano, 62032 Camerino (MC), Italy.
authors.forename: Martina
authors.initials: M
authors.lastname: Tilio
authors.affiliation: School of Biosciences and Veterinary Medicine, University of Camerino, Via Gentile III da Varano, 62032 Camerino (MC), Italy; Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, 00161 Rome, Italy.
authors.forename: Luca
authors.initials: L
authors.lastname: Digiacomo
authors.affiliation: School of Biosciences and Veterinary Medicine, University of Camerino, Via Gentile III da Varano, 62032 Camerino (MC), Italy.
authors.forename: Valentina
authors.initials: V
authors.lastname: Gambini
authors.affiliation: Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, 00161 Rome, Italy.
authors.forename: Sara
authors.initials: S
authors.lastname: Palchetti
authors.affiliation: School of Biosciences and Veterinary Medicine, University of Camerino, Via Gentile III da Varano, 62032 Camerino (MC), Italy.
authors.forename: Cristina
authors.initials: C
authors.lastname: Marchini
authors.affiliation: Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, 00161 Rome, Italy; Istituti Fisioterapici Ospitalieri, Istituto Regina Elena, Via Elio Chianesi 53, 00144 Rome, Italy.
authors.forename: Daniela
authors.initials: D
authors.lastname: Pozzi
authors.affiliation: Departments of Molecular Biotechnology and Health Sciences, University of Torino, Torino, Italy; Center for Experimental Research and Medical Studies (CERMS), AOU Città della Salute e della Scienza di Torino, Torino, Italy.
authors.forename: Sergio
authors.initials: S
authors.lastname: Occhipinti
authors.affiliation: School of Biosciences and Veterinary Medicine, University of Camerino, Via Gentile III da Varano, 62032 Camerino (MC), Italy.
authors.forename: Augusto
authors.initials: A
authors.lastname: Amici
authors.affiliation: Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, 00161 Rome, Italy. Electronic address: giulio.caracciolo@uniroma1.it.
authors.forename: Giulio
authors.initials: G
authors.lastname: Caracciolo
mesh_terms: D001943:Breast Neoplasms / Q000097:blood*; D006801:Humans; D008081:Liposomes / Q000737:chemistry*; D010190:Pancreatic Neoplasms / Q000097:blood*; D000066970:Protein Corona / Q000737:chemistry* / Q000378:metabolism; D013274:Stomach Neoplasms / Q000097:blood*
chemical_list: D008081:Liposomes; D000066970:Protein Corona
keywords: Breast cancer; Gastric cancer; Liposome; Pancreatic cancer; Protein corona