Enadenotucirev–host cell machinery (EnAd-HCM)

Enadenotucirev–host cell machinery refers to the integrated biological system formed when the oncolytic adenovirus Enadenotucirev (EnAd) hijacks the replication and protein synthesis apparatus of a malignant cell. Enadenotucirev is a chimeric group B adenovirus, specifically evolved to selectively replicate in tumor cells of epithelial origin, such as colorectal and ovarian carcinomas, while remaining inactive in healthy tissue [1]. The process begins with the virus binding to the Cluster of Differentiation 46 (CD46) receptor, which is frequently overexpressed on cancer cells, facilitating viral entry [2]. Once inside, the virus utilizes the host's DNA polymerases and ribosomes to produce viral proteins and genomic copies, eventually leading to the physical rupture of the cell, known as oncolysis [3]. This lytic event releases tumor-associated antigens and damage-associated molecular patterns (DAMPs), which transform the immunosuppressive tumor microenvironment into an inflamed state, triggering a systemic anti-tumor immune response [4]. Consequently, the interaction between Enadenotucirev and the host cell machinery serves as both a direct cytotoxic mechanism and an indirect immunotherapy [5].

Other names

ColoAd1-host cell interactionEnadenotucirev-CD46 complexAdenoviral replication machineryOncolytic adenovirus-host machinery

Selective viral replication in tumor cells leading to immunogenic cell death (oncolysis) and recruitment of immune cells to the tumor microenvironment.