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Updated: Apr 15, 2026

Assessment of Resistance to Tyrosine Kinase Inhibitors by an Interrogation of Signal Transduction Pathways by Antibody Arrays
Published on: September 19, 2018
Antibody-Drug Conjugates Targeting Resistance-Associated Signaling Pathways: Recent Advances and Future Perspectives
Dan Xie1, Chengming Yang2, Siyi Gao1
1Department of Biochemistry and Molecular Biology, Naval Medical University, Shanghai 200433, China.
Abstract:
Antibody-drug conjugates (ADCs) represent a paradigm shift in precision oncology, ingeniously coupling the targeting capability of monoclonal antibodies with the lethal potency of cytotoxic payloads to selectively eradicate tumor cells. While ADCs have demonstrated transformative efficacy across a spectrum of malignancies, the emergence of intrinsic and acquired resistance remains a formidable obstacle, frequently culminating in treatment failure and disease progression. The landscape of ADC resistance is highly complex, governed by a diverse array of molecular mechanisms. These range from alterations in antigen dynamics-such as downregulation or impaired trafficking-to intracellular adaptations, including the upregulation of multi-drug resistance efflux pumps, enhanced DNA damage repair capacity, and the blockade of apoptotic cell death. Moreover, tumor cells often exploit compensatory signaling networks to bypass therapeutic inhibition. Consequently, elucidating the intricate signaling cascades that drive these resistance phenotypes is critical for clinical advancement. This review comprehensively examines the pivotal signaling pathways underpinning ADC resistance and evaluates novel therapeutic strategies designed to circumvent these molecular barriers, aiming to optimize patient outcomes.
Insights
Antibody-drug conjugates (ADCs) offer targeted cancer therapy, but resistance limits their effectiveness. Understanding resistance mechanisms is key to developing new strategies for better patient outcomes.
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- Antibody-drug conjugates (ADCs) are a significant advancement in precision oncology.
- ADCs combine targeted antibody delivery with potent cytotoxic payloads for cancer treatment.
- Resistance to ADCs is a major challenge, leading to treatment failure.
Purpose of the Study:
- To review the molecular mechanisms driving resistance to antibody-drug conjugates.
- To examine the signaling pathways involved in ADC resistance.
- To evaluate novel therapeutic strategies to overcome ADC resistance.
Main Methods:
- Comprehensive literature review of signaling pathways in ADC resistance.
- Analysis of molecular mechanisms contributing to intrinsic and acquired ADC resistance.
- Evaluation of emerging therapeutic approaches to circumvent resistance.
Main Results:
- ADC resistance involves diverse mechanisms including antigen dynamics, drug efflux, DNA repair, and apoptosis evasion.
- Tumor cells utilize compensatory signaling networks to resist ADC therapy.
- Specific signaling cascades are critical drivers of ADC resistance phenotypes.
Conclusions:
- Elucidating signaling pathways is crucial for overcoming ADC resistance.
- Novel therapeutic strategies are being developed to target these resistance mechanisms.
- Optimizing ADC therapy requires a deep understanding of resistance biology to improve patient outcomes.
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