Feasibility Investigation of Cellulose Polymers for Mucoadhesive Nasal Drug Delivery Applications

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• 作者：Kellisa Hansen ; Gwangseong Kim ; Kashappa-Goud H. Desai ; Hiren Patel ; Karl F. Olsen ; Jaime Curtis-Fisk ; Elizabeth Tocce ; Susan Jordan ; Steven P. Schwendeman
• 刊名：Molecular Pharmaceutics
• 出版年：2015
• 出版时间：August 3, 2015
• 年：2015
• 卷：12
• 期：8
• 页码：2732-2741
• 全文大小：451K
• ISSN：1543-8392

文摘

The feasibility of various cellulose polymer derivatives, including methylcellulose (MC), hydroxypropyl methylcellulose (HPMC), sodium-carboxymethylcellulose (sodium-CMC), and cationic-hydroxyethylcellulose (cationic-HEC), for use as an excipient to enhance drug delivery in nasal spray formulations was investigated. Three main parameters for evaluating the polymers in nasal drug delivery applications include rheology, ciliary beat frequency (CBF), and permeation across nasal tissue. Reversible thermally induced viscosity enhancement was observed at near nasal physiological temperature when cellulose derivatives were combined with an additional excipient, poly(vinyl caprolactam)鈥損oly(vinyl acetate)鈥損oly(ethylene glycol) graft copolymer (PVCL鈥揚VA鈥揚EG). Cationic-HEC was shown to enhance acyclovir permeation across the nasal mucosa. None of the tested cellulosic polymers caused any adverse effects on porcine nasal tissues and cells, as assessed by alterations in CBF. Upon an increase in polymer concentration, a reduction in CBF was observed when ciliated cells were immersed in the polymer solution, and this decrease returned to baseline when the polymer was removed. While each cellulose derivative exhibited unique advantages for nasal drug delivery applications, none stood out on their own to improve more than one of the performance characteristics examined. Hence, these data may be useful for the development of new cellulose derivatives in nasal drug formulations.