Title |
Multidrug-resistant Cancer Cells Facilitate E1-independent Adenoviral ReplicationImpact for Cancer Gene Therapy
|
---|---|
Published in |
Cancer Research, January 2004
|
DOI | 10.1158/0008-5472.can-0482-2 |
Pubmed ID | |
Authors |
Per S. Holm, Hermann Lage, Stephan Bergmann, Karsten Jürchott, Gabriel Glockzin, Alexandra Bernshausen, Klaus Mantwill, Axel Ladhoff, Anke Wichert, Joe S. Mymryk, Thomas Ritter, Manfred Dietel, Bernd Gänsbacher, Hans-Dieter Royer |
Abstract |
Resistance to chemotherapy is responsible for a failure of current treatment regimens in cancer patients. We have reported previously that the Y-box protein YB-1 regulates expression of the P-glycoprotein gene mdr1, which plays a major role in the development of a multidrug resistant-tumor phenotype. YB-1 predicts drug resistance and patient outcome in breast cancer. Thus, YB-1 is a promising target for new therapeutic approaches to defeat multidrug resistance. In drug-resistant cancer cells and in adenovirus-infected cells YB-1 is found in the nucleus. Nuclear accumulation of YB-1 in adenovirus-infected cells is a function of the E1 region, and we have shown that YB-1 facilitates adenovirus replication. Here we report that E1A-deleted or mutant adenovirus vectors, such as Ad312 and Ad520, replicate efficiently in multidrug-resistant (MDR) cancer cells and induce an adenovirus cytopathic effect resulting in host cell lysis. Thus, replication-defective adenoviruses are a previously unrecognized vector system for a selective elimination of MDR cancer cells. Our work forms the basis for the development of novel oncolytic adenovirus vectors for the treatment of MDR malignant diseases in the clinical setting. |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Croatia | 1 | 3% |
Russia | 1 | 3% |
Unknown | 28 | 93% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 8 | 27% |
Student > Bachelor | 5 | 17% |
Student > Ph. D. Student | 5 | 17% |
Other | 2 | 7% |
Professor > Associate Professor | 2 | 7% |
Other | 3 | 10% |
Unknown | 5 | 17% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 16 | 53% |
Medicine and Dentistry | 4 | 13% |
Computer Science | 1 | 3% |
Biochemistry, Genetics and Molecular Biology | 1 | 3% |
Immunology and Microbiology | 1 | 3% |
Other | 1 | 3% |
Unknown | 6 | 20% |