Diterpenoids from Scutellaria barbata D. Don Exert the Antiproliferative Effect on Colorectal Cancer Cells Via Hedgehog Signaling Pathway

ABSTRACT

Background: Scutellaria barbata D. Don, also known as “Banzhilian” in China, the diterpenes of Banzhilian (Bzl-D) is a commonly used herbal medicine for treating various tumors including colorectal cancer (CRC). Objectives: This study aimed to examine the function of Bzl-D in inhibiting CRC development and explore its potential targets and mechanisms involving the Hedgehog (HH) pathway. Materials and Methods: To determine the major components in Bzl-D, we performed ultra-performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-qTOF-MS) analysis. The proliferation, migration, invasion, and apoptosis abilities of the CRC HT-29 cell line were examined, and the related protein expression was tested. Tumorigenesis after treatment was detected by in vivo experiments. Results: Nineteen diterpenoids were detected, Bzl-D significantly inhibited the cell proliferation and metastasis and induced the apoptosis of HT-29 cells through binding to Sonic HH (SHH) and down-regulating the key proteins (SHH, patched, smoothened, and glioma-associated oncogene) of the HH pathway, thus. Of note, Bzl-D remarkably suppressed the growth of HT-29 xenografts in nude mice. Conclusion: This research demonstrates that Bzl-D is a promising anti-rectal cancer drug, providing a new entry point for targeted therapy of CRC.

KEYWORDS

• Scutellaria barbata D. Don
• diterpenoids
• colorectal cancer
• Hedgehog pathway
• SHH

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• DOI10.1177/09731296241234714Copy

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