alexa How can Improve DNA Vaccine Modalities as a Therapeutic Approach against HIV Infections?
ISSN 2155-6113

Journal of AIDS & Clinical Research
Open Access

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Review Article

How can Improve DNA Vaccine Modalities as a Therapeutic Approach against HIV Infections?

Nourieh Habibzadeh1,2, Azam Bolhassani1*, Rouhollah Vahabpour1and Seyed Mehdi Sadat1

1Department of Hepatitis and AIDs, Pasteur Institute of Iran, Tehran, Iran

2Islamic Azad University of Pharmaceutical Sciences Branch, Tehran, Iran

*Corresponding Author:
Azam Bolhassani
Assistant Professor
Department of Hepatitis and AIDs
Pasteur Institute of Iran
Tel: +98 21 66953311 Fax: +98 21 66465132
E-mail: [email protected]

Received date: January 24, 2015; Accepted date: March 06, 2015; Published date: March 15, 2015

Citation: NHabibzadeh, Bolhassani A, Vahabpour R, Sadat SM (2015) How can Improve DNA Vaccine Modalities as a Therapeutic Approach against HIV Infections? J AIDS Clin Res 6: 440. doi:10.4172/2155-6113.1000440

Copyright: ©2015 Habibzadeh N, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



The recent studies have focused on the improvement of effective prophylactic and therapeutic approaches to combat persistent viral infections. Several therapeutic vaccine strategies have already used such as live-attenuated microbes, viral vectors and dendritic cell-based vaccines led to suppress and/or clear infections. Among them, improved DNA vaccines have emerged as a promising candidate for treatment of infectious diseases especially HIV infections. These vaccines have the advantages of safety, low cost of production, ease of use due to their stability in room temperature as well as ability to elicit efficient immune responses. Some strategies have been considered to improve immune responses stimulated by DNA vaccines, e.g., genetic optimization of plasmid DNA constructs encoding antigens, in vivo efficient DNA delivery systems, co-delivery with molecular adjuvants as well as the development of potent heterologous prime-boost regimens. DNA vaccines have an intrinsic bias towards generating cellular immunity against intracellular pathogens. By manipulating the DNA formulation and delivery, effective antibody responses can be also induced. For instance, the studies showed that the immunized monkeys with DNA vaccine developed HIVspecific T-cell immune responses that persisted for months. It is important to develop the potency of this modality in the clinic. In this review, the authors will focus on the recent improvements to enhance DNA vaccine potency in combating persistent HIV virus infections


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