4-Phenylbutyric Acid Reduces the Proliferation in Colon Cancer Cell Lines Through Modulating the Cell Cycle...

Area of Science:

• Oncology
• Molecular Biology
• Biochemistry

Background:

• Endoplasmic reticulum stress (ER-stress) is implicated in cancer development and progression.
• Research focuses on chemical chaperones to mitigate ER-stress.

Purpose of the Study:

• Investigate 4-phenylbutyric acid (4-PBA) effects on colon cancer cell proliferation and inflammation.
• Examine 4-PBA's role in regulating ER-stress-related protein expression.

Main Methods:

• Molecular docking and dynamics simulations to assess 4-PBA binding with ER-stress proteins (IRE1-α, PDI, GRP78, PERK, NRF2).
• Quantified expression of ER-stress, pro-inflammatory, and cell-cycle genes.
• Measured inflammatory proteins, catalase, and reactive oxygen species (ROS) levels in colon cancer cells treated with 4-PBA.

Main Results:

• In silico analysis revealed strong binding of 4-PBA to IRE1-α and PERK.
• 4-PBA treatment downregulated ER-stress, cell-cycle, and pro-inflammatory genes.
• Reduced pro-inflammatory proteins, ROS, and increased catalase indicate a link between ER-stress and inflammation.

Conclusions:

• 4-PBA demonstrates anti-inflammatory and anticarcinogenic effects in colon cancer.
• Findings suggest 4-PBA as a potential therapeutic agent for cancer treatment.