Anti-proliferative and apoptotic effect of gemini curcumin in p53-wild type and p53-mutant colorectal cancer cell lines
International Journal of Pharmaceutics, ISSN: 0378-5173, Vol: 601, Page: 120592
2021
- 21Citations
- 38Captures
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Metrics Details
- Citations21
- Citation Indexes21
- 21
- CrossRef10
- Captures38
- Readers38
- 38
Article Description
Despite recent advances in therapy, colorectal cancer remains a leading cause of death in affected people. Curcumin is the main bioactive compound of turmeric that has been demonstrated as an effective agent against cancer. However, its poor stability and bioavailability limit therapeutic application. We previously showed that delivery of curcumin by using gemini surfactant nanoparticles called gemini curcumin (Gemini-Cur) could improve its solubility, uptake and toxic effect on breast and ovarian cancer cells. Here, we aimed to investigate the anticancer activity of Gemini-Cur in both p53-mutant and p53-wild type colorectal cancer cells. The toxicity of Gemini-Cur on HT-29 and HCT116 was studied through MTT, uptake kinetics, fluorescence microscopy, annexin V/FITC, and cell cycle assays. Also, real-time PCR and western blotting were performed to evaluate the expression of p53, p21, BAX, BCL-2, and NOXA genes. Our data showed that Gemini-Cur not only enters cells quite rapidly compared to free curcumin crystals, but also suppresses HT-29 and HCT-116 cells proliferation in a time- and dose-dependent manner (p < 0.001). The IC50 values as well as apoptosis assays showed that p53-wild type cells are sensitive to Gemini-Cur. Flow cytometry also revealed that the number of apoptotic cells is dramatically increased in HCT-116 cells earlier than HT-29 cells (p < 0.0001). Gemini-Cur upregulated apoptotic genes including p53 (in both mutant and wild-type forms), p21, NOXA and BAX while decreased anti-apoptotic BCL-2 in mRNA and protein level (p < 0.0001). As a hallmark of apoptosis, the expression ratio of BAX/BCL-2 was significantly increased in all treated cells. Taken together, our findings demonstrated that Gemini-Cur suppresses the proliferation of cancer cells via induction of apoptosis and could be considered as novel nano-formulated phytochemical for cancer targeting.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0378517321003975; http://dx.doi.org/10.1016/j.ijpharm.2021.120592; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85104477826&origin=inward; http://www.ncbi.nlm.nih.gov/pubmed/33857585; https://linkinghub.elsevier.com/retrieve/pii/S0378517321003975; https://dx.doi.org/10.1016/j.ijpharm.2021.120592
Elsevier BV
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