Related Experiment Video
Updated: Jul 13, 2025

Author Spotlight: Exploring Salidroside's Molecular Mechanisms in Breast Cancer Treatment
Published on: June 9, 2023
Bufotalin Suppresses Proliferation and Metastasis of Triple-Negative Breast Cancer Cells by Promoting Apoptosis and
So Jin Park1, Hye Jin Jung1,2,3
1Department of Life Science and Biochemical Engineering, Graduate School, Sun Moon University, Asan 31460, Republic of Korea.
Abstract:
Triple-negative breast cancer (TNBC) is a highly aggressive type of breast cancer and has a poor prognosis. As standardized TNBC treatment regimens cause drug resistance and tumor recurrence, the development of new TNBC treatment strategies is urgently required. Bufotalin is a bufadienolide isolated from the skin and parotid venom glands of the toad Bufo gargarizan, and has several pharmacological properties, including antiviral, anti-inflammatory, and anticancer activities. However, the anticancer effect and underlying molecular mechanisms of action of bufotalin in TNBC have not been fully studied. In the current study, we investigated the effects of bufotalin on the growth and metastasis of MDA-MB-231 and HCC1937 TNBC cells. Bufotalin potently inhibited the proliferation of both TNBC cell lines by promoting cell cycle arrest and caspase-mediated apoptosis. Furthermore, bufotalin effectively suppressed the migration and invasion of both TNBC cell lines by regulating the expression of key epithelial-mesenchymal transition (EMT) biomarkers, matrix metalloproteinases (MMPs), and integrin α6. Notably, the anticancer effect of bufotalin in TNBC cells was associated with the downregulation of the signal transducer and activator of the transcription 3 (STAT3) signaling pathway. Collectively, our results suggest that the natural compound bufotalin may exert antiproliferative and antimetastatic activities in TNBC cells by modulating the apoptotic pathway and the STAT3/EMT axis.
Insights
Bufotalin, a natural compound, effectively inhibits triple-negative breast cancer (TNBC) growth and metastasis. It works by inducing apoptosis and suppressing key pathways involved in cancer progression.
Area of Science:
- Pharmacology
- Oncology
- Natural Products Chemistry
Background:
- Triple-negative breast cancer (TNBC) is aggressive with poor prognosis.
- Existing treatments face challenges with drug resistance and recurrence.
- Novel therapeutic strategies for TNBC are urgently needed.
Purpose of the Study:
- To investigate the anticancer effects of bufotalin on TNBC cells.
- To elucidate the molecular mechanisms underlying bufotalin's action in TNBC.
- To evaluate bufotalin's potential as a new therapeutic agent for TNBC.
Main Methods:
- Utilized TNBC cell lines (MDA-MB-231 and HCC1937).
- Assessed bufotalin's impact on cell proliferation, apoptosis, migration, and invasion.
- Analyzed key molecular markers including EMT biomarkers, MMPs, integrin α6, and the STAT3 pathway.
Main Results:
- Bufotalin significantly inhibited TNBC cell proliferation via cell cycle arrest and apoptosis.
- Bufotalin suppressed TNBC cell migration and invasion.
- Bufotalin's anticancer activity was linked to STAT3 pathway downregulation and modulation of EMT axis.
Conclusions:
- Bufotalin demonstrates potent antiproliferative and antimetastatic effects in TNBC.
- Bufotalin may represent a promising natural compound for TNBC treatment.
- The STAT3/EMT pathway is a key target for bufotalin's action in TNBC.
Related Concept Videos
Drugs that Stabilize Microtubules
The Intrinsic Apoptotic Pathway
Drugs that Destabilize Microtubules
Targeted Cancer Therapies
There are several types of targeted therapies against...
Abnormal Proliferation
PI3K/mTOR/AKT Signaling Pathway

