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Flutamide-Loaded Zein Nanocapsule Hydrogel, a Promising Dermal Delivery System for Pilosebaceous Unit Disorders

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Abstract

Zein is a naturally occurring corn protein having similarity to skin keratin. Owing to its hydrophobicity and biodegradability, zein nanocarriers are promising drug delivery vehicles for hydrophobic dermatological drugs. In this study, zein-based nanocapsules (ZNCs) were exploited for the first time as dermal delivery carriers for flutamide (FLT), an antiandrogen used for the management of pilosebasceous unit disorders. FLT-loaded ZNC of appropriate particle size and negative surface charge were prepared by nanoprecipitation method. The dermal permeation and skin retention of FLT from ZNCs were studied in comparison to corresponding nanoemulsion (NE) and hydroalcoholic drug solution (HA). ZNCs showed a significantly lower permeation flux compared to NE and HA while increasing the skin retention of FLT. Confocal laser scanning microscopy (CLSM) demonstrated the follicular localization of the fluorescently labeled NCs. The incorporation of NCs in chitosan gel or Carbomer® 934 gel was studied. Carbomer® gel increased the skin retention of FLT compared to chitosan gel. Accordingly, Carbomer® hydrogel embedding FLT-loaded ZNCs is a promising inexpensive, biocompatible dermal delivery nanocarrier for localized therapy of PSU disorders suitable for application on oily skin.

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Acknowledgments

This work is supported by a research grant funded by center of special studies at bibliotheca Alexandrina (CSSP-BIBALEX).

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Authors and Affiliations

  1. Industrial Pharmacy Department, Faculty of Pharmacy, Alexandria University, 1 Midan Alkhartoom square, Alazarita, Alexandria, Egypt

    Marwa Ahmed Sallam & Ahmed O. Elzoghby

  2. Cancer Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt

    Ahmed O. Elzoghby

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  1. Marwa Ahmed Sallam
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  2. Ahmed O. Elzoghby
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Correspondence to Marwa Ahmed Sallam.

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Sallam, M.A., Elzoghby, A.O. Flutamide-Loaded Zein Nanocapsule Hydrogel, a Promising Dermal Delivery System for Pilosebaceous Unit Disorders. AAPS PharmSciTech 19, 2370–2382 (2018). https://doi.org/10.1208/s12249-018-1087-z

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  • DOI: https://doi.org/10.1208/s12249-018-1087-z

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