Follicular liposomal delivery systems

J Liposome Res. Feb-May 2002;12(1-2):143-8. doi: 10.1081/lpr-120004787.

Abstract

Traditionally, the prime pathway for the topical delivery of active agents across the skin was thought to be through intercellular routes and transcellular routes of the stratum corneum. However, alternative means such as via appenageal transport, i.e., follicular transport, is gaining more acceptances in the scientific community. Targeting specific sites of the hair follicle may represent a feasible therapeutic approach to skin diseases such as hair loss. It is therefore an object of this research to develop novel liposomal formulations for enabling the topical delivery of difficult-to-absorb agents for localized action, specifically to the hair follicles and sebaceous glands. We examined small and large molecules. The small molecule chosen was minoxidil, a known hair growth stimulator. The large molecular weight molecule was plasmid DNA encoded with interleukin-1 receptor antagonist protein (IL-1ra).

MeSH terms

  • Animals
  • Cricetinae
  • Drug Delivery Systems*
  • Female
  • Genetic Therapy / methods
  • Hair Follicle / metabolism*
  • Humans
  • Interleukin 1 Receptor Antagonist Protein
  • Liposomes* / metabolism
  • Male
  • Mesocricetus
  • Mice
  • Mice, Inbred C57BL
  • Minoxidil / pharmacology
  • Plasmids / metabolism
  • Sialoglycoproteins / metabolism
  • Time Factors
  • Vasodilator Agents / pharmacology

Substances

  • IL1RN protein, human
  • Il1rn protein, mouse
  • Interleukin 1 Receptor Antagonist Protein
  • Liposomes
  • Sialoglycoproteins
  • Vasodilator Agents
  • Minoxidil