RRC ID 42379
Author Sano M, Furuta T, Takahira K, Kajimura M, Hanai H, Kohno E, Hirano T, Hishida A.
Title Cell-cycle-dependent efficacy of photodynamic therapy with ATX-S10(Na).
Journal Lasers Med Sci
Abstract Photodynamic therapy (PDT) is a useful strategy for treating various cancers. Details of the mechanisms of PDT have not been made clear yet. We intended to study the efficacy of PDT in relation to the cell cycle. HeLa S3 cells were synchronized by the thymidine block method. Cells in different cell cycle phases after release were treated with the water-soluble photosensitizer, ATX-S10(Na). The cellular viability after PDT was determined by the MTT assay. Intracellular levels of ATX-S10(Na) in different cell cycle phases were also determined. We found that cells in the S and G(2)/M phases were hypersensitive to PDT with ATX-S10(Na) in comparison with those in the G(1) phase, and that cellular levels of ATX-S10(Na) were increased in cells in the S and G(2)/M phases compared to those in the G(1) phase. We conclude that cellular ATX-S10(Na) levels differ among the different cell cycle phases, which is associated with the cell-cycle-dependent efficacy of PDT with ATX-S10(Na).
Volume 20(1)
Pages 1-5
Published 2005-1-1
DOI 10.1007/s10103-005-0337-y
PMID 15912266
MeSH Analysis of Variance Cell Cycle / drug effects* Female HeLa Cells / cytology HeLa Cells / drug effects* Humans In Vitro Techniques Photochemotherapy / methods* Porphyrins / pharmacology* Probability Sensitivity and Specificity Tumor Cells, Cultured / cytology Tumor Cells, Cultured / drug effects
IF 2.342
Times Cited 4
WOS Category ENGINEERING, BIOMEDICAL SURGERY
Resource
Human and Animal Cells HeLa.S3(RCB0191)