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Khansarizadeh M, Mokhtarzadeh A, Rashedinia M, Taghdisi SM, Lari P, Abnous KH, Ramezani M. Identification of possible cytotoxicity mechanism of polyethylenimine by proteomics analysis. Hum Exp Toxicol 2015; 35:377-87. [PMID: 26134983 DOI: 10.1177/0960327115591371] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Polyethylenimine (PEI) is a polycation widely used for successful gene delivery both in vitro and in vivo experiments. However, different studies showed that PEI could be cytotoxic to transfected cells, and the mechanism of toxicity is poorly understood. Identification of PEI-interacting proteins may help in understanding the toxicity pathways. In this study, we investigated proteins that could interact with PEI in human colorectal adenocarcinoma cells (HT29). In order to identify the proteins interacting with PEI, PEI was immobilized to sepharose beads as solid matrix. The HT29 cell lysate were passed through the matrix. PEI-bound proteins were isolated, and further separation was performed by two-dimensional gel electrophoresis. After gel digestion, proteins were identified by matrix-assisted laser desorption/ionization-time-of-flight (TOF)/TOF mass spectrometry. Our data indicated that most of the identified PEI-interacting proteins such as shock proteins, glutathione-S-transferases, and protein disulfide isomerase are involved in apoptosis process in cells. Thus, although this is a preliminary experiment implicating the involvement of some proteins in PEI cytotoxicity, it could partly explain the mechanism of PEI cytotoxicity in cells.
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Affiliation(s)
- M Khansarizadeh
- Nanotechnology Research Center, Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - A Mokhtarzadeh
- School of Medicine, Gonabad University of Medical Sciences, Gonabad, Iran Pharmaceutical Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - M Rashedinia
- Department of Pharmacology and Toxicology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - S M Taghdisi
- Targeted Drug Delivery Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - P Lari
- Department of Pharmacodynamy and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - K H Abnous
- Pharmaceutical Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - M Ramezani
- Nanotechnology Research Center, Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran Pharmaceutical Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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