background hypervariability of hcv proteins is an important obstacle to design an efficient vaccine for hcv infection. multi-epitope vaccines containing conserved epitopes of the virus could be a promising approach for protection against hcv. objectives cellular and humoral immune responses against multi-epitope dna and peptide vaccines were evaluated in balb/c mice. materials and methods in th...

Background: Studies on efficacy of various vaccines that prevent or reduce the primary and recurrent HSV-1 infection have demonstrated the importance of cellular immunity for protection against the infection. We previously used DNA vaccination to induce cellular immunity against HSV-1 infection in mice. Objective: The aim of our study was to evaluate the effect of LIGHT, a member of TNF super f...

Background and Aims: Glycoprotein B (gB) is among the most important immunogenic proteins of HSV-1 that is now being used as recombinant vaccine to induce protectively against the virus. It is believed that gB is responsible for induction of neutralizing antibody and up to 90% of CTL (Cytotoxic T Cell) activity against HSV-1 in some haplotypes. Methods: In the present study the antibody titer ...

background and aims: influenza (flu) is a respiratory infection in mammals and birds. it is caused by an rna virus in the family orthomyxoviridae. the virus is divided into three main types. influenza virus type a is found in a wide variety of bird and mammal species and can undergo major shifts in immunological properties. hemagglutinin (ha) is an important influenza virus surface antigen that...

background: tuberculosis (tb) is a major cause of death worldwide. finding an effective vaccine against tb is the best way to control it. several vaccines against this disease have been developed but none are completely protective. the aim of this study was to design and construct a cloning vector containing the mycobacterium tuberculosis (m. tuberculosis) heat shock protein x (hspx). methods: ...

objective: influenza virus a (h1n1) is an important subtype of the influenza respiratory viruses, which has important worldwide implications. hemagglutinin (ha), an important viral antigen, is responsible for binding to human cell receptors leading to an onset of the disease process. considering the critical role of viral attachment, this study focuses on the extraction and cloning of ha and it...

background and aims: glycoprotein b (gb) is among the most important immunogenic proteins of hsv-1 that is now being used as recombinant vaccine to induce protectively against the virus. it is believed that gb is responsible for induction of neutralizing antibody and up to 90% of ctl (cytotoxic t cell) activity against hsv-1 in some haplotypes. methods: in the present study the antibody titer i...

background: dna vaccination with plasmid encoding bacterial, viral, and parasitic immunogens has been shown to be an attractive method to induce efficient immune responses. bacteria of the genus brucella are facultative intracellular pathogens for which new and efficient vaccines are needed. methods: to evaluate the use of a dna immunization strategy for protection against brucellosis, a plasmi...

toxoplasmosis is an infection caused by the protozoan parasite toxoplasma gondii (t.gondii) throughout the world. although usually asymptomatic, the infection can cause serious medical problems in immunocompromised individuals and fetuses. toxoplasmosis also causes considerable economic loss because of abortion in livestock. dna vaccination is a promising approach against intracellular parasite...

introduction: long term complications of hepatitis c virus (hcv) infection include fibrosis, cirrhosis, and hepatocellular carcinoma and although the disease is treatable with the newly introduced direct acting antivirals, but factors such as drug resistance, viral genotype and adverse effects can limit the effectiveness of therapy. therefore, development of effective, safe and affordable proph...