Objective: The aim of this paper is to investigate the effect of dendrosomal curcumin (DNC) on the
expression of p53 in both p53 mutant cell lines SKBR3/SW480 and p53 wild-type MCF7/HCT116 in both RNA and
Background: Curcumin, derived from Curcumin longa, is recently considered in cancer related researches for its cell
growth inhibition properties. p53 is a common tumor-suppressor gene involved in cancers and its mutation not only
inhibits tumor suppressor activity but also promotes oncogenic activity.
Method: Here, p53 mutant/Wild-type cells were employed to study the toxicity of DNC using MTT assay, Flow
cytometry and Annexin-V, Real-time PCR and Western blot were used to analyze p53, BAX, Bcl-2, p21 and Noxa
changes after treatment.
Results: During the time, DNC increased the SubG1 cells and decreased G1, S and G2/M cells, early apoptosis also
indicated the inhibition of cell growth in early phase. Real-Time PCR assay showed an increased mRNA of BAX,
Noxa and p21 during the time with decreased Bcl-2. The expression of p53 mutant decreased in SKBR3/SW480, and
the expression of p53 wild-type increased in MCF7/HCT116.
Conclusion: Consequently, p53 plays an important role in mediating the survival by DNC, which can prevent tumor
cell growth by modulating the expression of genes involved in apoptosis and proliferation.