Hepatocyte targeted RNAi Therapeutics case studies in rare diseases and hepatitis B

来源 :The 3rd Canton Nucleic Acids Forum(第三届广州核酸国际论坛) | 被引量 : 0次 | 上传用户:runyran
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  RNA interference is an endogenous cellular mechanism for controlling gene expression in which small interfering RNAs (siRNAs) bind RNA-induced silencing complex (RISC) to mediate the cleavage of target mRNA.Conjugation of siRNA to an asialoglycoprotein receptor ligand derived from N-acetylgalactosamine (GalNAc) facilitates targeted delivery to hepatocytes and silencing of target mRNAs in vitro and in vivo after subcutaneous (SC) administration.Enhanced stabilization chemistry (ESC) of siRNA results in improved potency and duration of action, enabling infrequent, low volume dosing (Nair et al.J.Am.Chem.Soc., 2014).This delivery platform is being employed in several of Alnylams programs, including programs in clinical development.Case studies highlighting preclinical to clinical translation will be presented for genetic medicine programs in TTR-Amyloidosis, Hemophilia and Rare Bleeding Disorders, Hepatic Porphirias and Complement-Mediated Diseases.Lastly, the ESC GalNAc RNAi therapeutic platform is being applied to the identification and development of ALN-HBV for the treatment of chronic hepatitis B.
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