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Updated: Aug 25, 2025

Mimicking the Function of Signaling Proteins: Toward Artificial Signal Transduction Therapy
Published on: September 29, 2016
Targeting feedback activation of signaling transduction pathways to overcome drug resistance in cancer
Xuejian Wang1, Wenyan Jiang1, Yanmei Du1
1School of Pharmacy, Weifang Medical University, Weifang, Shandong, China.
Abstract:
Dysregulation or aberrant signaling transduction contributes to tumorigenesis. Targeting these abnormal signaling pathways becomes an effective anticancer strategy. However, feedback activation or crosstalk between signaling pathways drives adaptive drug resistance which causes failure of cancer therapy. In this review article, we summarized treatments that cause feedback activation of AKT, ERK, STAT3, EGFR, FGFR, and HER2/3 signaling pathways and the combination therapy to enhance anti-tumor effect or to overcome drug resistance, to explore the underlying mechanisms that define the protein molecules participated or regulated the feedback activation. In addition, we reviewed clinical trials that employ combination treatments to suppress feedback activation and improve therapeutic efficacy of cancer treatments.
Insights
Cancer therapies can trigger feedback activation in signaling pathways like AKT and ERK, leading to drug resistance. Combination therapies targeting these pathways show promise in overcoming resistance and improving anti-tumor effects.
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- Aberrant signaling transduction is a key driver of tumorigenesis.
- Targeting signaling pathways is a crucial anticancer strategy.
- Adaptive drug resistance arises from feedback activation and crosstalk between signaling pathways, leading to therapeutic failure.
Purpose of the Study:
- To review treatments causing feedback activation of key signaling pathways (AKT, ERK, STAT3, EGFR, FGFR, HER2/3).
- To explore combination therapies for enhancing anti-tumor effects and overcoming drug resistance.
- To investigate the molecular mechanisms underlying feedback activation and its regulation.
Main Methods:
- Literature review of studies on signaling pathway feedback activation.
- Analysis of combination therapies targeting these pathways.
- Review of clinical trials evaluating combination treatments for cancer therapy.
Main Results:
- Identified specific treatments that induce feedback activation in AKT, ERK, STAT3, EGFR, FGFR, and HER2/3 signaling.
- Summarized combination strategies to counteract feedback activation and enhance anti-tumor efficacy.
- Highlighted the role of specific proteins in regulating feedback mechanisms.
Conclusions:
- Understanding feedback activation mechanisms is critical for developing effective cancer treatments.
- Combination therapies offer a promising approach to overcome adaptive drug resistance.
- Targeting feedback loops can improve the therapeutic efficacy of anticancer agents.
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