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1.
Sci Rep ; 14(1): 9270, 2024 04 23.
Artigo em Inglês | MEDLINE | ID: mdl-38649421

RESUMO

The present study explored the anticancer activity of a Chitosan-based nanogel incorporating thiocolchicoside and lauric acid (CTL) against oral cancer cell lines (KB-1). Cell viability, AO/EtBr dual staining and Cell cycle analysis were done to evaluate the impact of CTL nanogel on oral cancer cells. Real-time PCR was performed to analyze proapoptotic and antiapoptotic gene expression in CTL-treated KB-1 cells. Further, molecular docking analysis was conducted to explore the interaction of our key ingredient, thiocolchicoside and its binding affinities. The CTL nanogel demonstrated potent anticancer activity by inhibiting oral cancer cell proliferation and inducing cell cycle arrest in cancer cells. Gene expression analysis indicated alterations in Bax and Bcl-2 genes; CTL nanogel treatment increased Bax mRNA expression and inhibited the Bcl-2 mRNA expression, which showed potential mechanisms of the CTL nanogel's anticancer action. It was found that thiocolchicoside can stabilize the protein's function or restore it as a tumour suppressor. The CTL nanogel exhibited excellent cytotoxicity and potent anticancer effects, making it a potential candidate for non-toxic chemotherapy in cancer nanomedicine. Furthermore, the nanogel's ability to modulate proapoptotic gene expression highlights its potential for targeted cancer therapy. This research contributes to the growing interest in Chitosan-based nanogels and their potential applications in cancer treatment.


Assuntos
Antineoplásicos , Apoptose , Quitosana , Colchicina , Colchicina/análogos & derivados , Ácidos Láuricos , Neoplasias Bucais , Nanogéis , Polietilenoimina , Humanos , Quitosana/análogos & derivados , Quitosana/química , Quitosana/farmacologia , Ácidos Láuricos/química , Ácidos Láuricos/farmacologia , Linhagem Celular Tumoral , Nanogéis/química , Antineoplásicos/farmacologia , Antineoplásicos/química , Colchicina/farmacologia , Apoptose/efeitos dos fármacos , Neoplasias Bucais/tratamento farmacológico , Neoplasias Bucais/patologia , Simulação de Acoplamento Molecular , Proliferação de Células/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Polietilenoglicóis/química , Polietilenoglicóis/farmacologia
2.
Bioinformation ; 19(11): 1075-1080, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38046516

RESUMO

It is of interest to develop potent and safer anti-inflammatory drugs from plants, as medicinal plants and herbs attained great attention in the medical world due to their multifunctional activities. This article studied the anti-inflammatory effects of lauric acid (LA), thiocolchicoside (TC) and thiocolchicoside-lauric acid (TC-LA) formulation. The anti-inflammatory effects of these compounds were determined by following the methods of inhibition of protein denaturation and proteinase inhibition activity. This was assessed at different concentrations to determine the 50% inhibition concentration (IC50) of the compounds. The result indicated that the activity of LA, TC, TC-LA formulation, and reference drug increased with the increase in the concentration from 10-50 µg/ml, thus proving the activity of LA, TC, and TC-LA formulation against inflammation was in a dose-dependent manner. The percentage of inhibition of protein denaturation was 59.56%, 66.94%, 86.62%, and 60.34% for LA, TC, the combination of TC-LA and standard drug, and the IC50 values were found to be 44.78 µg/mL, 37.65 µg/mL, 27.15 µg/mL and 43.42 µg/mL, respectively. The percentage of proteinase inhibition activity of LA, TC, and a combination of TC-LA and the standard drug was 66.65%, 77.49%, 94.07%, and 69.83%, and IC50 of LA, TC, a combination of TC-LA and standard drug were35.5 µg/mL, 32.12 µg/mL, 24.35 µg/mL and 37.80 µg/mL, respectively. We found out that lauric acid, thiocolchicoside, and thiocolchicoside-lauric acid formulation exhibited significant anti-inflammatory activity.

3.
J Med Syst ; 43(7): 186, 2019 May 17.
Artigo em Inglês | MEDLINE | ID: mdl-31101989

RESUMO

Due to the development of modern wearable mobile devices, the need of antenna with smaller size and internally flexible to fit becomes necessary. Miniaturization of Micro Strip Patch (MSP) antenna increases its employability for communication in different aspects. The use of flexible material for the fabrication of MSP antenna still improves its use for Wireless Body Area Networks (WBAN) which includes devices for monitoring systems in military, surveillance and medical applications. The devices designed specifically in Industrial Scientific Medical (ISM) band are used for communication in these applications. Defected Ground Structure (DGS) is adopted as an emerging technique for improving the various parameters of microwave circuits, that is, narrow bandwidth, cross-polarization, low gain, and so forth. In this paper, the design of compact micro strip patch antenna using different flexible substrate materials with DGS is proposed to resonate the antenna at 2.45GHz ISM band which can be used as biomedical sensors. Felt and Teflon with dielectric constant 1.36 and 2.1respectively are chosen as flexible substrate material among various flexible materials like cotton, rubber, paper, jeans etc. Using CST studio suite software, the designed antenna is simulated and the fabricated antenna is tested with Vector Network Analyzer (VNA). The performance parameters like return loss, gain, directivity and Voltage Standing Wave Ratio (VSWR) of the antenna are analyzed.


Assuntos
Desenho de Equipamento , Monitorização Fisiológica/instrumentação , Dispositivos Eletrônicos Vestíveis , Tecnologia sem Fio/instrumentação , Humanos
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