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Magnolol Induces Apoptosis Through Extrinsic/intrinsic Pathways and Attenuates NF-κB/STAT3 Signaling in

Yang-Cheng Lee1, Yueh-Shan Weng2, Hsiao-Yu Wang3,4

  • 1Division of Hematology/Oncology, Department of Internal Medicine, Tainan Municipal Hospital (Managed by Show Chwan Medical Care Corporation), Tainan, Taiwan, R.O.C.

Anticancer Research
|July 27, 2022
PubMed
Abstract

Insights

Magnolol induces cancer cell death by activating apoptosis and inhibiting STAT3/NF-B signaling pathways in non-small-cell lung cancer (NSCLC). This natural compound shows potential for suppressing tumor progression and metastasis.

Area of Science:

  • Oncology
  • Pharmacology
  • Molecular Biology

Background:

  • Non-small-cell lung cancer (NSCLC) presents a significant global health challenge with limited treatment efficacy.
  • Magnolol, derived from Magnolia officinalis, has demonstrated anti-cancer effects in hepatocellular carcinoma by inhibiting nuclear-factor-kappa B (NF-B) signaling.

Purpose of the Study:

  • To investigate the anti-cancer mechanisms of magnolol in NSCLC.
  • To determine if magnolol targets factors beyond NF-B to suppress tumor progression.

Main Methods:

  • Utilized cell viability assays, flow cytometry, and western blotting.
  • Examined magnolol's effects on human lung adenocarcinoma cell lines (A549 and CL1-5-F4).

Main Results:

  • Magnolol induced cytotoxicity via extrinsic and intrinsic apoptosis signaling pathways.
  • Suppressed the phosphorylation of signal transducer and activator of transcription 3 (STAT3) and NF-B.
  • Reduced the expression of downstream proteins regulated by STAT3/NF-B.

Conclusions:

  • Magnolol effectively triggers both extrinsic and intrinsic apoptosis in NSCLC cells.
  • Inactivated STAT3/NF-B signaling pathways.
  • Attenuated the expression of proteins associated with epithelial-mesenchymal transition and metastasis, suggesting potential anti-metastatic properties.
Keywords:
MagnololNF-BSTAT3non-small-cell lung cancernuclear factor kappa Bsignal transducer and activator of transcription 3

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