Viruses are commonly thought of as opportunistic organisms that hijack cellular machinery with the ultimate goal of replicating and causing destruction in the host. However, viruses are increasingly being explored as therapeutic agents for a variety of disorders and diseases, including cancers, due to their natural ability to spread to various cell types. Oncolytic viruses are replication-compe...

In this paper, we have analyzed a mathematical model for the study of interaction between tumor cells and oncolytic viruses. The model is analyzed using stability theory of differential equations. We gain some conditions for global stability of trivial and interior equilibrium point.

Oncolytic virotherapy, a new type of cancer therapy involving viruses with oncolytic and immunostimulatory potential, is based on tumor selective viral replication, resulting in a specific lysis of tumor cells. Effective tumor targeting of oncolytic viruses remains a major problem because only a fraction of systemically applied viruses can reach the tumor tissue. We describe for the first time ...

Oncolytic virus therapy is perhaps the next major breakthrough in cancer treatment following the success in immunotherapy using immune checkpoint inhibitors. Oncolytic viruses are defined as genetically engineered or naturally occurring viruses that selectively replicate in and kill cancer cells without harming the normal tissues. T-Vec (talimogene laherparepvec), a second-generation oncolytic ...

Tumour-specific replicating (oncolytic) viruses are novel anticancer agents, currently under intense investigation in preclinical studies and phase I-III clinical trials. Until recently, most studies have focused on the direct antitumour properties of these viruses. There is now an increasing body of evidence indicating that host immune responses may be critical to the efficacy of oncolytic vir...

Oncolytic viruses are natural or genetically modified viral species that selectively infect and kill neoplastic cells. Oncolytic viruses as highly targeted agents that would mediate cancer cell-autonomous anticancer effects. The therapeutic potential of oncolytic virotherapy is not a simple consequence of the cytopathic effect, but strongly relies on the induction of an endogenous immune respon...

Cancer virotherapy is an attractive alternative to conventional treatments because it offers a wide range of antitumor effects due to 1) the diversity of the oncolytic viruses that are now available and 2) their multifaceted activities against both tumor cells and tumor vessels, in addition to their ability to induce antitumor immune responses. In this review, we summarize preclinical and clini...

Oncolytic viruses are replication competent, tumor selective and lyse cancer cells. Their potential for anti-cancer therapy is based upon the concept that selective intratumoral replication will produce a potent anti-tumor effect and possibly bystander or remote cell killing, whilst minimizing normal tissue toxicity. Viruses may be naturally oncolytic or be engineered for oncolytic activity, an...

The rapid growth of tumors depends upon elevated levels of dNTPs, and while dNTP concentrations are tightly regulated in normal cells, this control is often lost in transformed cells. This feature of cancer cells has been used to advantage to develop oncolytic DNA viruses. DNA viruses employ many different mechanisms to increase dNTP levels in infected cells, because the low concentration of dN...

Targeted therapy of cancer using oncolytic viruses has generated much interest over the past few years in the light of the limited efficacy and side effects of standard cancer therapeutics for advanced disease. In 2006, the world witnessed the first government-approved oncolytic virus for the treatment of head and neck cancer. It has been known for many years that viruses have the ability to re...