ИСТИНА

US Patent. The present invention is directed to a composition for causing photodynamic damage to target cells comprising a photosensitiser, a photosensitiser carrier component, a component which enables target cell recognition and transport of the photosensitiser toward the interior of the target cell by specific receptor-mediated endocytosis, and a component capable of effective targeted transport of the photosensitiser within the target cells. The invention is also related to a method for causing photodynamic damage to target cells comprising the steps of: adding the composition to the cells; keeping the cells at a temperature of normal vital activity of cells with the composition for causing photodynamic damage to the target cells, said composition comprising the above-mentioned components; and exposure of the cells to light. 17 claims