Targeting Herpes Simplex Virus-1 gD by a DNA Aptamer Can Be an Effective New Strategy to Curb Viral Infection
نویسندگان
چکیده
Herpes simplex virus type 1 (HSV-1) is an important factor for vision loss in developed countries. A challenging aspect of the ocular infection by HSV-1 is that common treatments, such as acyclovir, fail to provide effective topical remedies. Furthermore, it is not very clear whether the viral glycoproteins, required for HSV-1 entry into the host, can be targeted for an effective therapy against ocular herpes in vivo. Here, we demonstrate that HSV-1 envelope glycoprotein gD, which is essential for viral entry and spread, can be specifically targeted by topical applications of a small DNA aptamer to effectively control ocular infection by the virus. Our 45-nt-long DNA aptamer showed high affinity for HSV-1 gD (binding affinity constant [Kd] = 50 nM), which is strong enough to disrupt the binding of gD to its cognate host receptors. Our studies showed significant restriction of viral entry and replication in both in vitro and ex vivo studies. In vivo experiments in mice also resulted in loss of ocular infection under prophylactic treatment and statistically significant lower infection under therapeutic modality compared to random DNA controls. Thus, our studies validate the possibility that targeting HSV-1 entry glycoproteins, such as gD, can locally reduce the spread of infection and define a novel DNA aptamer-based approach to control HSV-1 infection of the eye.
منابع مشابه
Expression of the Herpes Simplex Virus Type 2 Glycoprotein D in Baculovirus Expression System and Evaluation of Its Immunogenicity in Guinea Pigs
Background: Herpes simplex virus type 2 (HSV-2) is highly prevalent and major cause of genital herpes in humans. The life-long nature of infection and the increasing prevalence of genital herpes imply that vaccination is the best strategy for controlling the spread of infection and limiting HSV disease. HSV glycoprotein D (gD) is one of the most important viral immunogen which has an essential ...
متن کاملAnalysis of Herpes Simplex Virus in Suspected Encephalitis, Keratitis and Dermal Infections Using Real- Time PCR
Background & Objectives: Herpes viruses can cause diseases in the clinical range. The virus can cause infection in various body parts, especially eyes and nervous system. The aim of this study was at evaluating the Real-Time TaqMan probe PCR in diagnosing and monitoring of the patients with suspected HSV infections.Materials & Methods: More than a thousand patients with suspected HSV infection...
متن کاملTzanck smears in herpes simplex virus infections
Background: The diagnosis of herpes simplex virus may requirevirological confirmation. Tzanck smear is an old, rapid, costeffective but nonspecific method that has been recently re-evaluatedas a method for the diagnosis of herpes virus infection. This studywas conducted to compare Tzanck smear and viral culture in thediagnosis of herpes simplex virus infection in patients clinicallysuspected to...
متن کاملPCR detection of thymidine kinase gen of latent herpes simplex Virus type 1 in mice trigeminal ganglia
Herpes simplex virus type 1 establishes a latent infection in the peripheral nervous system following primary infection. During latent infection, virus genome exhibit limited transcription, with the HSV LATs consistently detected in latency infected ganaglia. Following ocular infection viral latency develops in the trigeminal ganglia. In this study PCR has been used for detection of HSV-1 nuc...
متن کاملInhibitory Effect of Mentha Piperita Extracts against Herpes Simplex Virus Isolated from Eye Infection
Herpes simplex virus (HSV) is one of the common pathogenic viruses of humans bing. This study aimed to determin anti-herpes virus activity of Mentha Piperita extracts in vitro. Mentha Piperita extracts can inhibit HSV infection when the cells treated before viral adsorbtion. HSV-1 were also inhibited by menthol after viral adsorption. HSV-1 viral particles were directly inhibited and viral yie...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره 9 شماره
صفحات -
تاریخ انتشار 2017