background: herpes simplex viruses (hsv) are human pathogens that establish lytic and latent infections. reactivation from latency occurs intermittently, which represents a life-long source for recurrent infection. the role of immune factors in the control of recurrent symptomatic hsv lesions is complex and the exact role of cytokines remains unclear. objective: to assess the levels of tumor ne...

Current design of genetically engineered viruses for selective destruction of cancer cells is based on the observation that attenuated viruses replicate better in tumor cells than in normal cells. The ideal virus, however, is one that can infect only cancer cells by virtue of altered host range. Such a virus can be made more robust than the highly attenuated viruses used in clinical trials. Ear...

Due to lack of effective therapy, primary brain tumors are the focus of intense investigation of novel experimental approaches that use vectors and recombinant viruses. Therapeutic approaches have been both indirect, whereby vectors are used, or direct to allow for direct cell killing by the introduced virus. Genetically engineered herpes simplex viruses are currently being evaluated as an expe...

Viruses that infect the nervous system may cause acute, chronic or latent infections. Despite the so-called immunoprivileged status of the nervous system, immunosurveillance plays an important role in the fate of viral infection of the brain. Herpes simplex virus 1 (HSV-1) persists in the nervous system for the life of the host with periodic stress induced reactivation that produces progeny vir...

Herpes viruses have received a great deal of attention due to their widespread and ubiquitous prevalence in the human population and to the diverse range of diseases caused as a result of an infection. During the last 20-25 years, many research laboratories have investigated the pathogenesis and molecular biology of these viruses; particularly herpes simplex virus (HSV). As a result of this res...

Herpes simplex virus infections of humans have been known since ancient times. Contemporary society has witnessed a series of devastating manifestations of herpes simplex virus infections--namely, genital herpes simplex virus infection and neonatal herpes simplex virus infection. With the evolution of society, particularly advances in birth control and increasing promiscuity, the seroprevalence...

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herpes simplex virus type 1 (hsv-1) is a member of the herpesviridae family that causes herpetic disease in human. during the last 25-30 years, many investigations have been conducted on pathogenesis and molecular biology of this virus in several countries. in iran hsv-1 has been isolated from patients and detected using immunological techniques. in this study, we investigated the molecular asp...