This study intended to develop and evaluate isotretinoin (ITR)
loaded nanoparticles taking chitosan as a polymer of interest. Ionic
crosslinking method was utilized to prepare nanoparticles. Nanoparticles
were formulated using varying ratios (chitosan: tripolyphosphate)
and evaluated for its size, distribution of size, zeta potential,
percentage of ITR entrapped within nanoparticles, in vitro drug
release and its stability under accelerated conditions. The prepared
nanoparticles (NPs) were spherical, white in color and free flowing,
321± 4.5 nm was the average size of optimized chitosan nanoparticles
and it was able to entrap 88.76 ± 3.5%. The outcomes assured
vast promise of the CNs of ITR (optimized) in management of acne
and also increasing the therapeutic efficacy, thus establish to be a
promising, effective and patient compliant formulation.
INTRODUCTION
Acne, a cutaneous pleomorphic condition of the pilosebaceous
unit involving sebum production rate anomaly
and described by inflammatory (pustules, nodules and
papules) as well as non-inflammatory comedones (closed
and/or open)(Knutson, 1974). Regular pus-forming
microbes Propionibacterium acnes and Staphylococcus
epidermidis are responsible for development of many
forms of acne vulgaris(Rawat, Tripathi et al., 2015). It
is a pleomorphic disorder and can manifest at any time
during life but it most commonly occurs between ages
of 12-24 years, accounting effective 85% of population
(Cordain, Lindeberg et al., 2002). P. acne is an anaerobic
microorganismexisting in acne lesionsthat promotes
inflammation through a variety of mechanisms and
involved inproducing pro-inflammatory mediators that
diffuses through the follicle wall (Itoh, Tsuchida et al.,
2014).
Prominent in adolescence and puberty, acne is
definitely associated with function of sebaceous gland,
which stimulate higher secretion of sebum androgenically
(Singh, Gangwar et al., 2016).However, the
consequential sebaceous