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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Isotretinoin-Delonix polymeric nanoparticles: Potentials for skin follicular targeting in acne treatment

Full text
Author(s):
Ogunjimi, Abayomi Tolulope [1] ; Chahud, Fernando [2] ; Lopez, Renata F. V. [1]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Sch Pharmaceut Sci Ribeirao Preto, Av Cafe S-N, BR-14040903 Ribeirao Preto, SP - Brazil
[2] Univ Sao Paulo, Ribeirao Preto Med Sch, Ribeirao Preto, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: International Journal of Pharmaceutics; v. 610, DEC 15 2021.
Web of Science Citations: 0
Abstract

In acne management, oral isotretinoin (IST) is associated with various untoward systemic effects, while its topical formulation has irritation side effects. Delonix (DLX) is a natural galactomannan derived from Delonix regia seed that can fabricate nanoparticles for topical skin delivery. This study aims to develop IST-DLX nanoparticles and assess their prospects for acne treatment. Fluorescent-DLX nanoparticles (made with a lipophilic BODIPY dye) or IST-DLX nanoparticles were prepared and characterized. BODIPY-DLX nanoparticles' skin distribution and ISTDLX nanoparticles' in-vitro targeting were assessed in pig ear skin, inflammatory modulation was assessed in AMJ-2 macrophage cells, while skin penetration and irritation were assessed in Wistar rats. IST-DLX nanoparticles had approximate to 230 nm, negative zeta potential, and approximate to 30% encapsulation efficiency. Confocal showed BODIPY in DLX nanoparticles accumulated in hair follicles as compared to BODIPY solution. IST-DLX nanoparticles released approximate to 37% IST over 48 h and increased IST 3-fold in hair follicles compared to IST solution. IST-DLX nanoparticles suppressed IL-6 expression in cells and reduced photo-irritation in Wistar rats compared to IST solution. In conclusion, IST-DLX nanoparticles may target and deliver adequate IST to skin layers associated with acne, avoid systemic penetration, modulate inflammatory pathogenic acne stage and prevent IST topical photo-irritation. (AU)

FAPESP's process: 14/22451-7 - Sustained drug delivery systems targeting the epithelial tissue
Grantee:Renata Fonseca Vianna Lopez
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 14/50928-2 - INCT 2014: Pharmaceutical Nanotechnology: a transdisciplinary approach
Grantee:Maria Vitória Lopes Badra Bentley
Support Opportunities: Research Projects - Thematic Grants