2021•Yangtze MedicineOpen access

Oncolytic Engineering of ICP34.5 and LAT of Herpes Simplex Virus Type 1

Wen-Qi Cai, Ying Zhang, Qi Huang, Ying Xiang, Hongwu Xin

Abstract

Oncolytic virus (OV) is a kind of virus that can preferentially infect and kill tumor cells. The second oncolytic virus drug was oncolytic herpes simplex virus (oHSV) Talimogene Laherparepvec (T-VEC). HSV-1 infectious cell culture protein 34.5 (ICP34.5) and latency-associated transcript (LAT) genes are closely related to virus selective infection and latent infection. Their engineering is essential for constructing efficient and safe oHSV. We summarized the mechanisms of ICP34.5 and LAT in the course of HSV-1 infection and reviewed the engineered oHSVs. We are aimed to provide an insight in developing oHSV in the future.

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Key concepts: Oncolytic virus, Herpes simplex virus, Virology, Virus, Medicine, Biology