Title
Comparative in vivo sensitizing efficacy of porphyrin and chlorin dimers joined with ester, ether, carbon-carbon or amide bonds
Document Type
Conference Proceeding
Publication Date
3-1-1996
Abstract
The anti-cancer activity of dimers joined with ether, ester or carbon- carbon bonds by photodynamic therapy (PDT) was compared by using DBA/2 mice transplanted with SMT/F tumors. Dimers with ether and carbon-carbon linkages were found to be more effective than those linked with ester bonds. Variation of the substituents at peripheral positions made a significant difference in in vivo efficacy. Among the ether and carbon-carbon linked dimers, the divinyl analogs were found to be most effective. The preliminary in vivo results also suggest that the position(s) of the hydrophilic substituents in the molecules make a remarkable difference in photosensitizing activity. An unsymmetrical dimer with an amide linkage, obtained from 2-(1-hexyloxyethyl)- 2-devinyl pyropheophorbide-a (HPPH) was found to be less effective than HPPH.
Publication Source (Journal or Book title)
Journal of Molecular Recognition
First Page
118
Last Page
122
Recommended Citation
Pandey, R., Zheng, G., Lee, D., Dougherty, T., & Smith, K. (1996). Comparative in vivo sensitizing efficacy of porphyrin and chlorin dimers joined with ester, ether, carbon-carbon or amide bonds. Journal of Molecular Recognition, 9 (2), 118-122. https://doi.org/10.1002/(SICI)1099-1352(199603)9:2<118::AID-JMR251>3.0.CO;2-8