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2 results on '"Priyadharshini Thangavelu"'

1. Cytotoxic Effects of Nanoliposomal Cisplatin and Diallyl Disulfide on Breast Cancer and Lung Cancer Cell Lines

Author

Kaavya Gunasekaran, Bala Murali Krishna Vasamsetti, Priyadharshini Thangavelu, Karthi Natesan, Bonaventure Mujyambere, Viswanathan Sundaram, Rama Jayaraj, Yeon-Jun Kim, Suja Samiappan, and Jae-Won Choi

Subjects
nanoliposome, cisplatin, diallyl disulfide, anti-cancer therapy, Biology (General), QH301-705.5
Abstract

Dual drug delivery has become the choice of interest nowadays due to its increased therapeutic efficacy in targeting the tumor site precisely. As quoted in recent literature, it has been known to treat several cancers with an acute course of action. Even so, its use is restricted due to the drug’s low pharmacological activity, which leads to poor bioavailability and increases first-pass metabolism. To overcome these issues, a drug delivery system using nanomaterials which would not only encapsulate the drugs of interest but also carry them to the target site of action is needed. Given all these attributes, we have formulated dual drug-loaded nanoliposomes with cisplatin (cis-diamminedichloroplatinum(II) (CDDP)), an effective anti-cancer drug, and diallyl disulfide (DADS), an organosulfur compound derived from garlic. The CDDP and DADS-loaded nanoliposomes (Lipo-CDDP/DADS) exhibited better physical characteristics such as size, zeta potential, polydispersity index, spherical shape, optimal stability, and satisfactory encapsulation percentage. The in vitro anti-cancer activity against MDA-MB-231 and A549 cell lines revealed that Lipo-CDDP/DADS showed significant efficacy against the cancer cell lines, depicted through cell nucleus staining. We conclude that Lipo-CDDP/DADS hold exceptional pharmacological properties with better anti-cancer activity and would serve as a promising formulation to treat various cancers.

Published
2023
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2. Development of optimized novel liposome loaded with 6-gingerol and assessment of its therapeutic activity against NSCLC In vitro and In vivo experimental models

Author

Priyadharshini Thangavelu, Viswanathan Sundaram, Kaavya Gunasekaran, Bonaventure Mujyambere, Sowndarya Raju, Arya Kannan, Ashok Arasu, Kadirvelu Krishna, Jayaraj Ramamoorthi, Sivasamy Ramasamy, Thirunavukkarasu Velusamy, and Suja Samiappan

Subjects
Mice, Organic Chemistry, Liposomes, Catechols, Animals, Cell Biology, Fatty Alcohols, Models, Theoretical, Molecular Biology, Biochemistry
Abstract

6-Gingerol (Gn) is an active compound derived from ginger which possesses various biological activities. The therapeutic applications of Gn are limited due to its hydrophobic nature. To ease its administration, one of the nano-emulsion methods, liposome was selected to encapsulate Gn. Response Surface Methodology (RSM) was used to optimize liposome ratio. 97.2% entrapment efficiency was achieved at the ratio of 1:20:2 (Drug: Lipid: Cholesterol). The optimized liposome attained size below 200 d nm, spherical shape, negative surface charge and showed sustain release upon physical characterization methods such as FESEM, DLS, Zeta potential, Drug release. The signature FTIR peaks of both free Gn and free liposome (FL) were also observed in Lipo-Gn peak. Lipo-Gn showed significant cytotoxic effect on A549 cells (IC50 160.5 ± 0.74 µM/ml) as well as inhibits the cell migration. DAPI staining showed higher apoptotic nuclear morphological change in the cells treated with Lipo-Gn, and also Lipo-Gn increased the apoptotic percentage in A549 as 39.89 and 70.32 for 12 and 24 h respectively which were significantly more than free Gn. Moreover, the formulation of Lipo-Gn showed significant cell cycle arrest at the G2/M phase compared with free Gn (28.9% and 34.9% in Free Gn vs. 42.7% and 50.1% in Lipo -Gn for 12 and 24 h respectively). Lipo-Gn have been assessed in NSCLC induced BALB/c mice and showed significantly improved pharmacological properties compared to those of free Gn. Thus, Lipo-Gn may be considered for its widening applications against lung cancer.

Published
2021

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