The current invention relates to the synthesis of novel cationic lipids and their use as delivery vectors for nucleic acids, peptides and other synthetic drugs, in vitro and in vivo. The cationic lipids described herein form stable lamellar structures (liposomes) at physiological pH but destabilize to micelles at acidic and alkaline pH. These structures are characterized of high elasticity, increased fluidity and high transfection activity relative to the corresponding 1,2-dialkyl cationic derivatives and other phospholipids analogues.
目前的发明涉及合成新型阳离子脂质,并将其用作核酸、肽和其他合成药物的递送载体,无论是体外还是体内。本文描述的阳离子脂质在生理pH下形成稳定的层状结构(脂质体),但在酸性和碱性pH下会变为胶束。这些结构具有高弹性、增加流动性和高转染活性的特点,相对于相应的1,2-二烷基阳离子衍
生物和其他
磷脂类似物。