Fabrication, Characterization, Drug Release and Glucose Uptake Activity of 14-deoxy, 11, 12-didehydroandrographolide Loaded Polycaprolactone Nanoparticles

Overview

Journal Asian J Pharm Sci

Date 2020 Feb 28

PMID 32104346

Citations 14

Authors

Nagalakshmi Kamaraj

Pooja Yashwanthi Rajaguru

Praveen Kumar Issac

Sujatha Sundaresan

Affiliations

Soon will be listed here.

Abstract

Biodegradable polymer based novel drug delivery systems brought a considerable attention in enhancing the therapeutic efficacy and bioavailability of various drugs. 14-deoxy 11, 12-didehydro andrographolide (poorly water soluble compound) loaded polycaprolactone (nano-DDA) was synthesized using the solvent evaporation technique. Nano-DDA was characterized by scanning electron microscopy (SEM) and dynamic light scattering (DLS) studies. Fourier Transform InfraRed Spectroscopy (FTIR) was used to investigate the structural interaction between the drug and the polymer. Functional characterization of the formulation was determined using drug content, cellular uptake and drug release. 2-deoxy-D-[1-H] glucose uptake assay was carried out to assess the antidiabetic potential of nano-DDA in L6 myotubes. The nano-DDA displayed spherical shape with a smooth surface (252.898 nm diameter), zeta potential, encapsulation and loading efficiencies of -38.9 mV, 91.98 ± 0.13% and 15.09 ± 0.18% respectively. No structural alteration between the drug and the polymer was evidenced (FTIR analysis). Confocal microscopy studies with rhodamine 123 loaded polycaprolactone nanoparticles (Rh123-PCL NPs) revealed the internalization of Rh123-PCL NPs in a time dependent manner in L6 myoblasts. A dose dependent increase in glucose uptake was observed for nano-DDA with a maximal uptake of 108.54 ± 1.42% at 100 nM on L6 myotubes, thereby proving its anti-diabetic efficacy. A biphasic pattern of drug release demonstrated an initial burst release at 24 h followed by a sustained release for up to 11 days. To conclude, our results revealed that nano-DDA formulation can be a potent candidate for antidiabetic drug delivery.

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