Abstract
In the current study, via utilizing H5L (H5L = 2,4-di(3',5'-dicarboxylphenyl)benzoic acid), the symmetrical rigid polycarboxylic acid ligand with V-shape geometry, two new coordination polymers containing Cu(II) and Co(II) have been produced, and their chemical formulae respectively are {[Co5(L)2(H2O)12]·6H2O} n (1) and {[H2N(Me)2][Cu2(L)(H2O)]·DMF·H2O} n (2), leading to a variety kinds of coordination patterns of H5L and multifunctional skeletons. Their inhibitory activity on the insulin resistance of colon cancer patients was assessed. In addition, the detailed mechanism of the compound was also investigated. Firstly, the detection of enzyme-linked immunosorbent assay was carried out and the Tumor Necrosis Factor-α (TNF-α) level and the Interleukin-1β (IL-1β) level was detected. Then, the glucose concentration was determined with blood glucose meter. Next, the insulin receptor expression levels of β cells were determined with the real time reverse transcription-polymerase chain reaction assay. Ultimately, the cytotoxicity of compounds 1 and 2 was determined with Cell Counting Kit-8 assay.
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