대한의생명과학회지 (Biomedical Science Letters)

  • 제17권1호
  • /
  • Pages.79-84
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  • 2011
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  • 1738-3226(pISSN)
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  • 2288-7415(eISSN)
대한의생명과학회 (The Korean Society for Biomedical Laboratory Sciences)
권호 표지

The Biologic Effect of Millimeter Wave Irradiation Followed to Photodynamic Therapy on the Tumor

  • Ahn, Jin-Chul (Medical Laser and Device Research Center, Dankook University) ;
  • Lee, Chang-Sook (Department of Internal Medicine, College of Medicine, Dankook University) ;
  • Chang, So-Young (Medical Laser and Device Research Center, Dankook University) ;
  • Yoon, Sung-Chul (Department of Internal Medicine, College of Medicine, Dankook University)
  • 투고 : 2010.07.08
  • 심사 : 2011.02.25
  • 발행 : 2011.03.31
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초록

Photodynamic therapy consists of a photosensitizer, suitable light source and oxygen. The excitation of the photosensitizer at a cancer mass results in oxidation which would ultimately reduce the mass via apoptosis. Millimeter wave (MMW) therapy has also been known to be effective on cancer cell mass reduction, human cell regeneration and immunity enhancement among the Russian clinicians and scientists. In the present study, the two modalities were combined to achieve synergistic effects while reducing the administration dosage of the photosensitizer, photogem, thus minimizing the side effects. The CT-26 adenocarcinoma cell mass was implanted on mice and the tumors were exposed to a simple MMW irradiation or a combined treatment of MMW and PDT. The treatments continued for 4 weeks and the size of the tumor was measured continuously. The significant therapeutic result of MMW was not found during 4 weeks, preferably more cancer recurrence possibility after MMW irradiation was observed. The results of this study suggest that the combination of MMW irradiation and photodynamic treatment should not be recommended. The result of the MMW treatment alone, however, displayed suppressive effect on cancer cell proliferation for both in vitro and in vivo. The results of the present study suggest that the millimeter wave therapy deserves a further study.

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