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miRNAs: mediators of ErbB family targeted therapy resistance
Bárbara Filipa Adem1,2, Nuno Ricardo Alves Bastos1,2, Francisca Dias1,3,4
1Molecular Oncology & Viral Pathology Group, IPO-Porto Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO-Porto), Rua Dr António Bernardino de Almeida, 4200-072 Porto, Portugal.
Abstract:
The ErbB/HER tyrosine kinase receptors family plays a key regulatory role in different cellular processes by activating several signaling pathways. In different tumor types, mutations or overexpression of the ErbB family members are a common feature, which led to the development of targeted therapies against this receptors. Although with this kind of treatment we are heading to a more personalized medicine, the development of acquired resistance is still an issue, therefore, several studies focused on discovering the mechanisms behind it. More recently, miRNAs have been described as important mediators of acquired resistance, specifically, acquired resistance to ErbB family targeted therapies. Ultimately, miRNA-based therapeutics using exosomes as a drug delivery model can revolutionize today's approach of cancer treatment.
Insights
Targeted therapies for ErbB/HER family receptors in cancer show promise but face acquired resistance. MicroRNAs (miRNAs) are emerging as key mediators of this resistance, offering potential for new exosome-based miRNA therapeutics.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- The ErbB/HER tyrosine kinase receptor family is crucial for cellular processes.
- Aberrant ErbB signaling, through mutations or overexpression, is common in various cancers.
- Targeted therapies against ErbB family receptors represent a move towards personalized cancer medicine.
Purpose of the Study:
- To investigate the role of microRNAs (miRNAs) in acquired resistance to ErbB-targeted therapies.
- To explore the potential of miRNA-based therapeutics for overcoming cancer treatment resistance.
Main Methods:
- Review of current literature on ErbB signaling, targeted therapies, and miRNA involvement in cancer.
- Analysis of studies identifying miRNAs as mediators of acquired resistance to ErbB inhibitors.
- Exploration of exosome-mediated drug delivery systems for miRNA therapeutics.
Main Results:
- Acquired resistance remains a significant challenge in ErbB-targeted cancer therapy.
- MicroRNAs have been identified as critical mediators of acquired resistance to ErbB family targeted therapies.
- Exosomes show potential as effective delivery vehicles for miRNA-based cancer therapeutics.
Conclusions:
- Understanding miRNA-mediated resistance mechanisms is vital for improving cancer treatment outcomes.
- miRNA-based therapeutics, delivered via exosomes, hold promise for revolutionizing cancer treatment strategies.
- Further research into exosome-based miRNA delivery could lead to more effective and personalized cancer therapies.
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