Chlorin E6

Description: Chlorin E6 (CE6) is a second-generation photosensitizer with antitumor activity when used in combination with irradiation. In a mouse model of implanted fibrosarcoma, Chlorin E6 (2.5-10 mg/kg, i.v., 50-200 J/cm2 irradiation) resulted in complete tumor disappearance after varying degrees of irradiation. Agents including Chlorin E6 were tested in a Phase I clinical study in patients with early superficial squamous cell carcinoma of bronchial origin with favorable results (40 mg/m2, IV, 100 J/cm2 laser irradiation). In a Phase II clinical trial in patients with early stage lung cancer, the same mode of administration resulted in a complete response in 82.9% of patients. Chlorin E6 has been investigated as a nanotechnology drug delivery tool. Target: Parasite. Smiles: CCc1c(C)c2cc3[nH]c(cc4nc([C@@H](CCC(O)=O)[C@@H]4C)c(CC(O)=O)c4[nH]c(cc1n2)c(C)c4C(O)=O)c(C)c3C=C. References: Pinto JG, et al. Chlorin E6 phototoxicity in L. major and L. braziliensis promastigotes-In vitro study [published correction appears in Photodiagnosis Photodyn Ther. 2017 Dec,20:287]. Photodiagnosis Photodyn Ther. 2016,15:19-24.