Expression of Monocarboxylate Transporters 1, 2, and 4 in Human Tumours and Their Association with CD147 and CD44

• Type: Article in International Scientific Journal
• Date: 2010

Authors

Pinheiro, C (Author) Other; Reis, RM (Author) Other; Ricardo, S (Author) Other; Longatto, A (Author) Other; Fernando Schmitt (Author) FMUP; Baltazar, F (Author) Other

Journal

Title: Journal of Biomedicine and Biotechnology

Vol. 2010 No. 807084

Pages: 1-7

ISSN: 1110-7243

Publisher: HINDAWI PUBLISHING CORPORATION

Indexing

ISI Web of Knowledge - 143 Citations

Scopus - 150 Citations

Other information

Authenticus ID: P-003-BJH

DOI: 10.1155/2010/427694

Abstract (EN): Monocarboxylate transporters (MCTs) are important cellular pH regulators in cancer cells; however, the value of MCT expression in cancer is still poorly understood. In the present study, we analysed MCT1, MCT2, and MCT4 protein expression in breast, colon, lung, and ovary neoplasms, as well as CD147 and CD44. MCT expression frequency was high and heterogeneous among the different tumours. Comparing with normal tissues, there was an increase in MCT1 and MCT4 expressions in breast carcinoma and a decrease in MCT4 plasma membrane expression in lung cancer. There were associations between CD147 and MCT1 expressions in ovarian cancer as well as between CD147 and MCT4 in both breast and lung cancers. CD44 was only associated with MCT1 plasma membrane expression in lung cancer. An important number of MCT1 positive cases are negative for both chaperones, suggesting that MCT plasma membrane expression in tumours may depend on a yet nonidentified regulatory protein.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7