DNA vaccination is a disruptive technology that offers the promise of a new rapidly deployed vaccination platform to treat human and animal disease with gene-based materials. Innovations such as electroporation, needle free jet delivery and lipid-based carriers increase transgene expression and immunogenicity through more effective gene delivery. This review summarizes complementary vector desi...

Introduction: The Nef accessory protein is an attractive antigenic candidate in the development of HIV-1 DNA- or protein-based vaccines. The most crucial disadvantage of DNA and protein-based vaccines is their low immunogenicity, which can be improved by cell-penetrating peptides (CPPs) as effective carrier molecules. Methods: In this study, the HIV-1 Nef protein was generated in the Escherichi...

Cell free fetal DNA (cff DNA) is apoptotic that shed from placenta and flows in maternal blood. This can be used as an indicative biomarker to rule out pregnancy associated complications. The objective of this study investigate the correlation concentration cff with intrauterine deaths. RHD gene (Rh blood group, D antigen) was marker for confirmation GAPDH (Glyceraldehyde-3-phosphate dehydrogen...

BACKGROUND With the advent of massively parallel sequencing (MPS), DNA analysis can now be performed in a genomewide manner. Recent studies have demonstrated the high precision of MPS for quantifying fetal DNA in maternal plasma. In addition, paired-end sequencing can be used to determine the size of each sequenced DNA fragment. We applied MPS in a high-resolution investigation of the clearance...

The identification of an effective and tolerable delivery method is a necessity for the success of DNA vaccines in the clinic. This article describes the development and validation of a multi-headed intradermal electroporation device which would be applicable for delivering multiple DNA vaccine plasmids simultaneously but spatially separated. Reporter gene plasmids expressing green and red fluo...

Development of nonviral gene transfer methods would be a valuable addition to the gene-therapy armamentarium, particularly for localized targeting of specific tissue volumes. Ultrasound can produce a variety of nonthermal bioeffects via acoustic cavitation including DNA delivery. Cavitation bubbles may induce cell death or transient membrane permeabilization (sonoporation) on a single cell leve...

In this communication, we show that active enzymes can be delivered into HEK293 cells in vitro when they are attached to tubular DNA origami nanostructures. We use bioluminescent enzymes as a cargo and monitor their activity from a cell lysate. The results show that the enzymes stay intact and retain their activity in the transfection process. The method is highly modular, which makes it a comp...

for electronic indexing) The delivery of a therapeutic gene inserted in a vector for somatic gene therapy holds great promise for the future. Encouraging results from the clinical trials of first-generation plasmid-based medicines/ vaccines have further validated the importance of molecular biology and biotechnology research. With newer developments in bioengineering for the mass production and...

Vanessa Bastos Pereira; Marcela Santiago Pacheco Azevedo; Tessália Diniz Luerce Saraiva; Bianca Mendes Souza; Meritxell Zurita Turk; Camila Prósperi De Castro; Pamela Mancha Agresti; Fernanda Alvarenga Lima; Vasco Azevedo; Daniela Santos Pontes and Anderson Miyoshi Laboratório de Genética Celular e Molecular, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Belo Ho...

A theory is presented which quantitatively accounts for the cooperative adsorption of cationic surfactants to anionic polyelectrolyte [1,2]. For high salt concentrations, we find that the critical adsorption concentration (CAC) is a bilinear function of the polyion monomer and salt concentrations, with the coefficients dependent only on the type of surfactant used. Motivated by the theory, we h...