The hedgehog pathway in triple-negative breast cancer
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Updated: Mar 16, 2026

Quantitative PCR-based Assay to Measure Sonic Hedgehog Signaling in Cellular Model of Ciliogenesis
Published on: January 31, 2025
Joyce G Habib1, Joyce A O'Shaughnessy2,3
1Baylor Charles A. Sammons Cancer Center, Dallas, Texas.
Abstract:
Treatment of triple-negative breast cancer (TNBC) remains challenging due to the underlying heterogeneity of this disease coupled with the lack of predictive biomarkers and effective targeted therapies. Intratumoral heterogeneity, particularly enrichment for breast cancer stem cell-like subpopulations, has emerged as a leading hypothesis for systemic therapy resistance and clinically aggressive course of poor prognosis TNBC. A growing body of literature supports the role of the stem cell renewal Hedgehog (Hh) pathway in breast cancer. Emerging preclinical data also implicate Hh signaling in TNBC pathogenesis. Herein, we review the evidence for a pathophysiologic role of Hh signaling in TNBC and explore mechanisms of crosstalk between the Hh pathway and other key signaling networks as well as their potential implications for Hh-targeted interventions in TNBC.
Insights
Triple-negative breast cancer (TNBC) is hard to treat due to its complexity. The Hedgehog (Hh) pathway may be a key target for new therapies against this aggressive cancer.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Stem Cell Research
Background:
- Triple-negative breast cancer (TNBC) presents significant therapeutic challenges due to its heterogeneity and lack of targeted treatments.
- Breast cancer stem cells (BCSCs) are implicated in TNBC's aggressive nature and resistance to systemic therapies.
- The Hedgehog (Hh) signaling pathway is increasingly recognized for its role in stem cell renewal and cancer development.
Purpose of the Study:
- To review the evidence supporting a pathophysiological role of Hh signaling in TNBC.
- To explore the mechanisms of crosstalk between Hh signaling and other critical pathways in TNBC.
- To discuss the potential of Hh-targeted interventions for TNBC treatment.
Main Methods:
- Literature review of preclinical and clinical studies on Hh signaling in breast cancer.
- Analysis of signaling network interactions relevant to TNBC pathogenesis.
- Synthesis of current understanding of Hh pathway involvement in TNBC.
Main Results:
- Evidence suggests Hh signaling is active in TNBC and contributes to its pathogenesis.
- Hh pathway crosstalks with other key signaling networks, influencing TNBC progression.
- Understanding these interactions is crucial for developing effective targeted therapies.
Conclusions:
- The Hedgehog pathway is a promising therapeutic target for triple-negative breast cancer.
- Targeting Hh signaling, potentially in combination with other pathways, may overcome treatment resistance in TNBC.
- Further research into Hh pathway mechanisms and crosstalk is warranted for clinical translation.
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