Expression of ATP-binding cassette transporter genes in nasopharyngeal carcinoma.
- Author:
Sha-sha DU
1
;
Kai-tai YAO
Author Information
- Publication Type:Journal Article
- MeSH: ATP Binding Cassette Transporter, Sub-Family G, Member 2; ATP-Binding Cassette Transporters; biosynthesis; genetics; Carcinoma, Squamous Cell; genetics; pathology; Gene Expression Regulation, Neoplastic; Humans; Multidrug Resistance-Associated Proteins; biosynthesis; genetics; Nasopharyngeal Neoplasms; genetics; pathology; Neoplasm Proteins; biosynthesis; genetics; Reverse Transcriptase Polymerase Chain Reaction
- From: Journal of Southern Medical University 2008;28(3):449-452
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo explore the differences in the expression of the ATP-binding cassette (ABC) transporter genes between normal nasopharyngeal tissue and nasopharyngeal carcinoma (NPC).
METHODSReal-time quantitative PCR was used to examine the gene expression of 10 ABC transporters in both NPC and normal nasopharyngeal tissue.
RESULTSThe 10 drug resistance-associated ABC transporters were expressed at different levels in NPC. ABCA2 and ABCC3 genes were strongly expressed in both the NPC and normal nasopharyngeal tissues, and ABCC1, ABCC5 and ABCG2 gene expressions were significantly higher in NPC than in normal nasopharyngeal tissue, whereas the ABCB1, ABCC2, ABCC3, ABCC4, ABCC6 and ABCC11 genes were all expressed at low levels in both the carcinoma and normal tissues.
CONCLUSIONThe transporters with high expressions in both the cancer and normal samples are correlated to the naturally occurring multidrug resistance of NPC, and those with high expression only in NPC may play an important role in drug resistance to chemotherapeuatic agents. The agents targeting the ABC transporters that are lowly expressed in both the carcinoma and normal tissues might serve as sensitivitive chemotherapeutics against NPC.
