Abstract
The current studies envisage unravelling the underlying cellular internalisation mechanism of the systematically developed docetaxel (DTH) polyunsaturated fatty acid (PUFA) enriched self-nanoemulsifying lipidic micellar systems (SNELS). The concentration-, time- and cytotoxicity-related effects of DTH-SNELS on triple negative breast cancer (TNBC) MDA-MB-231 and non-TNBC MCF-7 cell lines were assessed through Presto-blue assay. Subsequently, rhodamine-123 (Rh-123) loaded SNELS were employed for evaluating their internalisation through flow cytometry and fluorescence microscopy, establishing it to be "clathrin-mediated" endocytic pathway. Apoptosis assay (65% cell death) and cell cycle distribution (47% inhibition at G2/M phase) further corroborated the cytotoxicity of DTH-SNELS towards cancerous cells. Biodistribution, histopathology and haematology studies indicated insignificant toxicity of the optimized formulation on vital organs. Preclinical anticancer efficacy studies using 7,12-dimethylbenzantracene (DMBA)-induced model construed significant reduction in breast tumor-volume. Overall, extensive in vitro and in vivo studies indicated the intracellular localization and cytotoxicity, suggesting DTH-SNELS as promising delivery systems for breast tumor therapeutics including TNBC.
| Original language | English |
|---|---|
| Pages (from-to) | 645-658 |
| Number of pages | 14 |
| Journal | Materials Science and Engineering C |
| Volume | 91 |
| Early online date | 4 May 2018 |
| DOIs | |
| Publication status | Published - 1 Oct 2018 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Keywords
- 9,10-Dimethyl-1,2-benzanthracene
- ATP Binding Cassette Transporter, Subfamily B, Member 1/metabolism
- Animals
- Antineoplastic Agents/pharmacology
- Apoptosis/drug effects
- Cell Cycle Checkpoints/drug effects
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Clathrin/metabolism
- Docetaxel
- Emulsions/chemistry
- Endocytosis/drug effects
- Fatty Acids, Unsaturated/metabolism
- Female
- Humans
- Lipids/chemistry
- Macrophages/drug effects
- Mice
- Nanoparticles/chemistry
- Particle Size
- RAW 264.7 Cells
- Rats, Wistar
- Static Electricity
- Taxoids/pharmacology
- Temperature
- Time Factors
- Triple Negative Breast Neoplasms/blood
- Xenograft Model Antitumor Assays
- Poly unsaturated fatty acid (PUFA)
- Self-nanoemulsifying drug delivery systems
- Clathrin mediated endocytosis
- Breast cancer
- Triple negative breast cancer (TNBC)
- Apoptosis
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