Fundamental Toxicological Sciences

Paper Details

Fundamental Toxicological Sciences
Vol. 4 No. 3 June 02, 2017 p.105-107
A study for finding new phototoxicity descriptors related to potential energy
  • Yu Haranosono (Pharmacokinetis & Toxicology Laboratories, Senju Pharmaceutical Co. Ltd. /
Yu Haranosono , Shingo Nemoto , Masaaki Kurata , Hideyuki Sakaki
Pharmacokinetis & Toxicology Laboratories, Senju Pharmaceutical Co. Ltd.
Keywords: Phototoxicity, Potential energy, In silico

It is known that phototoxicity is related to chemical structure. We have previously reported a prediction method of chemical structure-based in silico phototoxicity for in vitro 3T3 NRU-PT assay. To improve the concordance of the method, here we added new descriptors related to another mechanism of phototoxicity. We focused on potential energy, which certainly contributes to chemical reactivity regardless of photo-irradiation. As a result, stretch-bend, a form of potential energy, was found as a new descriptor of phototoxicity. Our analysis strongly indicates that chemical reactivity is an important factor for phototoxic outcome.