Skin fluorescence following photodynamic therapy with NPe6 photosensitizer

Keishi Ohtani, Jitsuo Usuda, Emiyu Ogawa, Sachio Maehara, Kentaro Imai, Yujin Kudo, Shotaro Ono, Shunsuke Shigefuku, Daisuke Eriguchi, Tatsuya Inoue, Junichi Maeda, Koichi Yoshida, Masaru Hagiwara, Masatoshi Kakihana, Naohiro Kajiwara, Tatsuo Ohira, Tsunenori Arai, Norihiko Ikeda

研究成果: Article査読

3 被引用数 (Scopus)

抄録

Background The second-generation photosensitizer NPe6 has strong anti-tumor effects with a much shorter photosensitive period than the first-generation photosensitizer Photofrin. Although photosensitive period has been reduced, skin photosensitivity is still a major side effect of photodynamic therapy (PDT). Therefore, we conducted a prospective study to investigate whether the NPe6 fluorescence intensity in skin after PDT could be measured effectively in human patients to improve the management of a patient's photosensitive period. Methods The NPe6 fluorescence measurements using a constructed fluorescence sensing system at the inside of the arm were acquired prior to and 5 and 10 min after NPe6 administration as well as at the time of PDT (4–5 h after administration), at discharge (2 or 3 days after PDT), and at 1 or 2 weeks after PDT. Participants were interviewed as to whether they had any complications at 2 weeks after PDT. Results Nine male patients and one female patient entered this study. Nine patients were inpatients and one patient was an outpatient. All of the measurements of NPe6 fluorescence in the skin could be obtained without any complications. The spectral peak was detected at the time of discharge (2–3 days after administration) in most cases and it decreased at 1 or 2 weeks after PDT. Conclusions The fluorescence of NPe6 in the skin could be detected feasibly using the fluorescence sensing system in human patients. Measuring the relative concentration of NPe6 in the skin indirectly by measuring fluorescence intensity might be useful to predict the period of skin photosensitivity after PDT.

本文言語English
ページ(範囲)210-214
ページ数5
ジャーナルPhotodiagnosis and Photodynamic Therapy
20
DOI
出版ステータスPublished - 2017 12月

ASJC Scopus subject areas

  • 生物理学
  • 腫瘍学
  • 皮膚病学
  • 薬理学(医学)

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