European Journal of Medicinal Chemistry p. 1 - 12 (2017)
Update date:2022-08-05
Topics:
Guggilapu, Sravanthi Devi
Lalita, Guntuku
Reddy, T. Srinivasa
Prajapti, Santosh Kumar
Nagarsenkar, Atulya
Ramu, Shymala
Brahma, Uma Rani
Lakshmi, Uppa Jaya
Vegi, Ganga Modi Naidu
Bhargava, Suresh K.
Babu, Bathini Nagendra
A series of C5-tethered Indolyl-3-glyoxylamide derivatives were synthesized and evaluated for their in?vitro cytotoxic activity against DU145 (prostate), PC-3 (prostate), A549 (lung) and HCT-15 (colon) cancer cell lines by employing the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Among all the synthesized compounds, compound 7f displayed cytotoxicity of IC50?=?140?nM towards DU145 cancer cell line. The treatment of DU145?cells with 7f led to inhibition of cell migration ability. Futher, the detailed studies such as acridine orange/ethidium Bromide (AO/EB), DAPI, annexin V-FITC/propidium iodide staining assay suggested that the compound 7f induced apoptosis in DU145?cells. The influence of the cytotoxic compound 7f on the cell cycle distribution was assessed on the DU145?cell line, exhibiting a cell cycle arrest at the G2/M phase (hallmark of tubulin polymerization) and next inhibited tubulin polymerization with IC500.40?μM. Furthermore, the treatment with compound 7f caused collapse of mitochondrial membrane potential and elevated intracellular superoxide ROS levels in DU145?cells. Western blotting was performed to examine the levels of apoptotic proteins (Bcl-2 and Bax); the study confirmed that compound 7f induced apoptosis through apoptosis-related protein expression. Thus, these studies provided a new molecular scaffold for the further development of anticancer agents that target tubulin.
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