LIU Maolun,REN Shan,YANG Han,et al.Baitouweng Tang Suppresses Colorectal Cancer HCT116 Cells by Regulating Hedgehog Signaling Pathway[J].Chinese Journal of Experimental Traditional Medical Formulae,2023,29(08):125-132.
LIU Maolun,REN Shan,YANG Han,et al.Baitouweng Tang Suppresses Colorectal Cancer HCT116 Cells by Regulating Hedgehog Signaling Pathway[J].Chinese Journal of Experimental Traditional Medical Formulae,2023,29(08):125-132. DOI: 10.13422/j.cnki.syfjx.202202022.
Baitouweng Tang Suppresses Colorectal Cancer HCT116 Cells by Regulating Hedgehog Signaling Pathway
To explore the effect of Baitouweng Tang (BTWT) on the apoptosis of human colorectal cancer HCT116 cells and decipher the underlying mechanism based on the Hedgehog (Hh) signaling pathway.
Method
2
HCT116 cells were treated with BTWT (25, 50, 100, 200, 500, 750, and 1 000 mg·L
-1
) for 24 h, and then the cell proliferation was detected by methyl thiazolyl tetrazolium (MTT) colorimetry. Five groups were designed for the treatment of HCT116 cells, including a blank control group, BTWT groups (125, 250, and 500 mg·L
-1
), and a positive control (5-fluorouracil, 5-FU, 40 mmol·L
-1
) group. The cell morphology was observed under an inverted microscope. The migration of the cells was detected by scratch test, and the apoptosis by Hoechest 33324/propidium iodide (PI) staining and flow cytometry. Western blot was employed to determine the protein levels of sonic hedgehog (SHh), GLI family zinc finger protein 1 (Gli1), smoothened (Smo), suppressor of fused (SuFu), cellular-myelocytomatosis viral oncogene (c-Myc), and the apoptosis-related proteins B-cell lymphoma-2 (Bcl-2) and Bcl-2-associated X protein (Bax). The quantitative real-time reverse transcription PCR (Real-time PCR) was employed to determine the mRNA levels of Bax, Bcl-2, SHh, Gli1, Smo, SuFu, and c-Myc.
Result
2
Compared with the blank control group, BTWT changed the cell morphology (making the cell become round with dense nucleus), inhibited the proliferation of HCT116 cells in a dose-dependent manner, decreased the ability of migration (
P
<
0.05,
P
<
0.01), and increased apoptotic cells. Compared with the blank control group, BTWT (500 mg·L
-1
) treatment for 24 h up-regulated the protein and mRNA levels of Bax (
P
<
0.05,
P
<
0.01) and down-regulated the protein and mRNA levels of Bcl-2 in HCT116 cells (
P
<
0.05,
P
<
0.01). Moreover, the treatment down-regulated the mRNA and protein levels of SHh, Gli1, Smo, and c-Myc (
P
<
0.05,
P
<
0.01) and up-regulated the mRNA and protein levels of SuFu (
P
<
0.05,
P
<
0.01).
Conclusion
2
BTWT inhibited the proliferation and migration and induced the apoptosis of colorectal cancer HCT116 cells by down-regulating the Hh signaling pathway.
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