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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

A novel method for DNA delivery into bacteria using cationic copolymers

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Author(s):
V.V. de Souza [1] ; P.A.M. Vitale [2] ; F.H. Florenzano [3] ; R.K. Salinas [4] ; I.M. Cuccovia [5]
Total Authors: 5
Affiliation:
[1] Universidade de São Paulo. Instituto de Química. Departamento de Bioquímica - Brasil
[2] Universidade de São Paulo. Instituto de Química. Departamento de Bioquímica - Brasil
[3] Universidade de São Paulo. Escola de Engenharia de Lorena. Departamento de Engenharia de Materiais - Brasil
[4] Universidade de São Paulo. Instituto de Química. Departamento de Bioquímica - Brasil
[5] Universidade de São Paulo. Instituto de Química. Departamento de Bioquímica - Brasil
Total Affiliations: 5
Document type: Journal article
Source: Brazilian Journal of Medical and Biological Research; v. 54, n. 5 2021-04-02.
Abstract

Amphiphilic copolymers have a wide variety of medical and biotechnological applications, including DNA transfection in eukaryotic cells. Still, no polymer-primed transfection of prokaryotic cells has been described. The reversible addition-fragmentation chain transfer (RAFT) polymer synthesis technique and the reversible deactivation radical polymerization variants allow the design of polymers with well-controlled molar mass, morphology, and hydrophilicity/hydrophobicity ratios. RAFT was used to synthesize two amphiphilic copolymers containing different ratios of the amphiphilic poly[2-(dimethyl-amino) ethyl methacrylate] and the hydrophobic poly [methyl methacrylate]. These copolymers bound to pUC-19 DNA and successfully transfected non-competent Escherichia coli DH5α, with transformation efficiency in the range of 103 colony-forming units per µg of plasmid DNA. These results demonstrate prokaryote transformation using polymers with controlled amphiphilic/hydrophobic ratios. (AU)

FAPESP's process: 16/07490-1 - Structural studies of the Na+/Ca2+ exchanger and of proteins from the Zika virus by Nuclear Magnetic Resonance spectroscopy in solution
Grantee:Roberto Kopke Salinas
Support Opportunities: Regular Research Grants
FAPESP's process: 13/08166-5 - Interfacial chemistry: drugs, peptides and ezymes interactions with membrane models
Grantee:Iolanda Midea Cuccovia
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 17/05614-8 - Na +/Ca2+ exchangers: relationship between structure and function
Grantee:Phelipe Augusto Mariano Vitale
Support Opportunities: Scholarships in Brazil - Doctorate (Direct)