Title : Differential effect of anti-apoptotic genes Bcl-xL and c-FLIP on sensitivity of MCF-7 breast cancer cells to paclitaxel and docetaxel.

Pub. Date : 2005 May-Jun

PMID : 16080463






7 Functional Relationships(s)
Download
Sentence
Compound Name
Protein Name
Organism
1 Differential effect of anti-apoptotic genes Bcl-xL and c-FLIP on sensitivity of MCF-7 breast cancer cells to paclitaxel and docetaxel. Docetaxel BCL2 like 1 Homo sapiens
2 Caspase 8 and 9 activities were measured in cells overexpressing Bcl-xL or c-FLIP exposed to docetaxel and paclitaxel using fluorescent substrate cleavage assay. Docetaxel BCL2 like 1 Homo sapiens
3 RESULTS: MCF-7 cells overexpressing Bcl-xL but not TRAF-1, cIAP-2 or Mn-SOD were less sensitive to both paclitaxel and docetaxel compared to vector-transfected control cells. Docetaxel BCL2 like 1 Homo sapiens
4 2-Methoxyantimycin A3, a chemical inhibitor of Bcl-xL, sensitized Bcl-xL-overexpressing cells to paclitaxel and docetaxel, which suggests the drugs that inhibit Bcl-xL activity can be used as sensitizers to taxanes. Docetaxel BCL2 like 1 Homo sapiens
5 2-Methoxyantimycin A3, a chemical inhibitor of Bcl-xL, sensitized Bcl-xL-overexpressing cells to paclitaxel and docetaxel, which suggests the drugs that inhibit Bcl-xL activity can be used as sensitizers to taxanes. Docetaxel BCL2 like 1 Homo sapiens
6 2-Methoxyantimycin A3, a chemical inhibitor of Bcl-xL, sensitized Bcl-xL-overexpressing cells to paclitaxel and docetaxel, which suggests the drugs that inhibit Bcl-xL activity can be used as sensitizers to taxanes. Docetaxel BCL2 like 1 Homo sapiens
7 CONCLUSION: Because c-FLIP inhibits the extrinsic pathway of cell death whereas Bcl-xL inhibits the intrinsic pathway of cell death, these results suggest that overexpression of anti-apoptotic genes that inhibit either the extrinsic or intrinsic cell death pathways can reduce sensitivity of cancer cells to paclitaxel, whereas anti-apoptotic genes that inhibit only the intrinsic pathway reduce sensitivity to docetaxel. Docetaxel BCL2 like 1 Homo sapiens