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Updated: Aug 7, 2026

Absolute Quantitation of Inositol Pyrophosphates by Capillary Electrophoresis Electrospray Ionization Mass Spectrometry
Published on: August 13, 2021
Effects of inositol hexaphosphate on proliferation of HT-29 human colon carcinoma cell line
1Qingdao University Medical College, 38 Dengzhou Road, Qingdao 266021, Shandong Province, China.
Aim:
To investigate the effects of inositol hexaphosphate (IP(6)) on proliferation of HT-29 human colon carcinoma cell line.
Methods:
Cells were exposed to various concentrations (0, 1.8, 3.3, 5.0, 8.0, 13.0 mmol/L) of IP(6) for a certain period of time. Its effect on growth of HT-29 cells was measured by MTT assay. The expressions of cell cycle regulators treated with IP(6) for 2 d were detected by immunocytochemistry.
Results:
IP(6) inhibited the HT-29 cell growth in a dose- and time-dependent manner. Analysis of cell cycle regulator expression revealed that IP(6) reduced the abnormal expression of P53 and PCNA and induced the expression of P21.
Conclusion:
IP(6) has potent inhibitory effect on proliferation of HT-29 cells by modulating the expression of special cell cycle regulators.

