CPA3 adenovirus

CPA3, or carboxypeptidase A3, belongs to the carboxypeptidase family, a class of zinc-dependent metalloproteinases. The CPA3 gene is located on human chromosome 7 and is primarily expressed in mast cells and certain organs, such as the pancreas. This gene plays a crucial role in a variety of biological processes, including protein processing, inflammation regulation, and neuropeptide activity. The CPA3 enzyme specifically cleaves basic amino acids from the carboxyl terminus of peptides, thereby affecting the activity of peptide hormones and participating in the inactivation of bioactive peptides. Aberrant expression or mutations in the CPA3 gene are associated with a variety of diseases, including allergic reactions and certain types of cancer.

The CPA3 adenovirus is a recombinant viral vector genetically engineered to selectively target and infect cells expressing the CPA3 protein. Adenovirus offers numerous advantages as a gene therapy vector, including efficient delivery of therapeutic genes to target cells, high transduction efficiency, and the potential to elicit a potent immune response against tumor cells. The CPA3 adenovirus can be used to deliver therapeutic genes to induce apoptosis (programmed cell death) in cancer cells expressing CPA3, or provide a way to specifically introduce suicide genes in the tumor microenvironment to convert harmless prodrugs into toxic substances.