Compositions for photodynamic therapy chemically modified to increase epithelia penetration and cellular bioavailability

摘要

pThe present invention describes a photodynamic prodrug i.e. a substituted 4 thiothymidine (4 TT) which is able to cross the body s epithelia tissues such as the skin oral cavity nasal cavity pulmonary tract digestive tract and blood brain barrier including the use of such a prodrug in a topical application for the treatment of skin hyperplasias including skin cancer psoriasis keloids actinic keratosis and the like./p