Synthesis of Oligonucleotides Carrying Amino Lipid Groups at the 3′-End for RNA Interference Studies
摘要:
Novel lipid derivatives carrying amino and triazolyl groups were efficiently synthesized and covalently anchored at the 3'-termini of oligonucleondes The desired amino-lipid conjugates were fully characterized by reversed-phase HPLC and MALDI-TOF mass spectrometry The methodology was applied in the synthesis of lipid-siRNA designed to inhibit necrosis factor (TNF-alpha) in order to obtain siRNAs with anti-inflammatory properties The siRNA duplex carrying amino-lipids at the 3'-end of the passenger strand has inhibitory properties similar to those of unmodified RNA duplexes in HeLa cells. indicating that the new lipid derivatives ate compatible with the RNA interference machinery
Synthesis of Oligonucleotides Carrying Amino Lipid Groups at the 3′-End for RNA Interference Studies
摘要:
Novel lipid derivatives carrying amino and triazolyl groups were efficiently synthesized and covalently anchored at the 3'-termini of oligonucleondes The desired amino-lipid conjugates were fully characterized by reversed-phase HPLC and MALDI-TOF mass spectrometry The methodology was applied in the synthesis of lipid-siRNA designed to inhibit necrosis factor (TNF-alpha) in order to obtain siRNAs with anti-inflammatory properties The siRNA duplex carrying amino-lipids at the 3'-end of the passenger strand has inhibitory properties similar to those of unmodified RNA duplexes in HeLa cells. indicating that the new lipid derivatives ate compatible with the RNA interference machinery
Phospholipid derivatives of the formula: ##STR1## wherein R.sup.1 is a higher alkyl, acylmethyl or alkylcarbamoyl group which may be substituted by cycloalkyl; R.sup.2 is a lower alkyl which may be substituted by carboxy, formyl or lower acyl, a carbamoyl or thiocarbamoyl group which is substituted by lower alkyl, or an acetoacetyl group; R.sup.3, R.sup.4 and R.sup.5 are independently hydrogen or lower alkyl, or ##STR2## represents a cyclic ammonio group; and n represents an integer of 8 to 14, and salts thereof have antitumor activity.
Phospholipid derivatives, their production and use
申请人:Takeda Chemical Industries, Ltd.
公开号:EP0225129A1
公开(公告)日:1987-06-10
Phospholipid derivatives of the formula:
wherein R¹ is a higher alkyl, acylmethyl or alkylcarbamoyl group which may be substituted by cycloalkyl; R² is a lower alkyl which may be substituted by carboxy, formyl or lower acyl, a carbamcyl or thiocarbamoyl group which is substituted by lower alkyl, or an acetoacetyl group; R³, R⁴ and R⁵ are independently hydrogen or lower alkyl, or
represents a cyclic ammonio group; and n represents an integer of 8 to 14, and salts thereof have antitumor activity and platelet activating factor inhibitory activity and are useful as antitumor agents.
[EN] LIPOPHILIC DERIVATIVES OF NUCLEIC ACIDS<br/>[ES] DERIVADOS LIPOFÍLICOS DE ÁCIDOS NUCLEICOS<br/>[FR] DÉRIVÉS LIPOPHILES D'ACIDES NUCLÉIQUES
申请人:CONSEJO SUPERIOR INVESTIGACION
公开号:WO2011135138A1
公开(公告)日:2011-11-03
En esta invención se describen nuevos derivados del pARNi. El pARNi modificado según la invención mejora su entrada en las células y su estabilidad a la degradación por nucleasas, aumentando la capacidad inhibitoria de los pARNi. Estos nuevos compuestos contienen lípidos unidos a una molécula puente presente en el extremo terminal del dúplex de pARNi mediante enlaces tipo éter. También se describe la síntesis de dichos compuestos.
Synthesis of Oligonucleotides Carrying Amino Lipid Groups at the 3′-End for RNA Interference Studies
作者:Santiago Grijalvo、Sandra M. Ocampo、José C. Perales、Ramon Eritja
DOI:10.1021/jo101143j
日期:2010.10.15
Novel lipid derivatives carrying amino and triazolyl groups were efficiently synthesized and covalently anchored at the 3'-termini of oligonucleondes The desired amino-lipid conjugates were fully characterized by reversed-phase HPLC and MALDI-TOF mass spectrometry The methodology was applied in the synthesis of lipid-siRNA designed to inhibit necrosis factor (TNF-alpha) in order to obtain siRNAs with anti-inflammatory properties The siRNA duplex carrying amino-lipids at the 3'-end of the passenger strand has inhibitory properties similar to those of unmodified RNA duplexes in HeLa cells. indicating that the new lipid derivatives ate compatible with the RNA interference machinery