Molecular constructs with a carcinoembryonic antigen (CEA) transcriptional regulatory sequence
US6699690B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2001 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | Sep 10, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N2840/20
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Novel molecular chimaeras produced by recombinant DNA techniques are described. They comprise a target-tissue specific transcriptional regulatory sequence (TRS) linked and controlling the expression of a heterologous enzyme, for example Varicella Zoster Virus Thymidine Kinase (VZV TK) or non-mammaliam Cytosine Deaminase (CD). A molecular chimaera is packaged into a synthetic retroviral particle that is capable of infecting mammalian tissue. This, in turn, may be administered to a host, and the TRS will be selectively transcriptionally activated in the target tissue (for example cancerous cells). Administration of compounds that are selectively metabolised by the enzyme produce cytotoxic or cytostatic metabolites in situ thereby selectively killing or arresting the growth of the target cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.