Breast cancer resistant protein (BCRP) is a molecular determinant of the outcome of photodynamic therapy (PDT) for centrally located early lung cancer

Lung Cancer. 2010 Feb;67(2):198-204, Jitsuo Usuda, Yoshihiko Tsunoda, Shuji Ichinose, Taichirou Ishizumi, Keishi Ohtani, Sachio Maehara, Shoutarou Ono, Hidemitsu Tsutsui, Tatsuo Ohira, Tetsuya Okunaka, Kinya Furukawa, Yoshikazu Sugimoto, Harubumi Kato, Norihiko Ikeda

The ATP-binding cassette (ABC) transporter protein, BCRP (breast cancer resistance protein)/ABCG2 pumps out some types of photosensitizers used in photodynamic therapy (PDT) and causes resistance to the antitumor effect of PDT. The purpose of this study was to investigate the association between the expression of BCRP and the efficacy of PDT using Photofrin, or the second-generation photosensitizer, NPe6, for centrally located early lung cancers.Using human epidermoid carcinoma cells, A431 cells...

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