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Updated: May 29, 2025

Kinase Inhibitor Screening In Self-assembled Human Protein Microarrays
Published on: October 23, 2019
Kinases and their derived inhibitors from natural products
Takudzwa Chipeperengo Chiwoneso1, Yajing Luo1, Yifan Xu1
1State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198 China.
Abstract:
Protein kinase dysregulation is a hallmark of many cancers, yet their tumorigenic mechanisms remain elusive despite 60 years of study. Since learning that their mechanism includes catalyzing phosphorylation of amino acids in protein substrates, researchers began devising their inhibition strategies. Initially, protein kinase inhibitors (PKIs) derived from natural products were employed despite high cytotoxicity risks. While synthetic PKIs proved less toxic, they face significant drug resistance challenges. This review examines the progress in understanding protein kinases' role in cancer, their classification and modes of action since their discovery. To illuminate the path towards less toxic yet highly effective kinase inhibitors, this study analyzes the synthesis and modification of all FDA-approved natural product derived kinase inhibitors (NPDKIs) as well as those that failed clinical trials. By providing insights into successful and unsuccessful approaches, this review also aims to advance medicinal chemistry strategies for developing more effective and safer PKIs, potentially improving cancer treatment outcomes.
Insights
Protein kinase inhibitors (PKIs) are crucial in cancer treatment but face challenges like toxicity and drug resistance. This review analyzes natural product-derived PKIs to guide the development of safer, more effective cancer therapies.
Area of Science:
- Oncology
- Biochemistry
- Medicinal Chemistry
Background:
- Protein kinase dysregulation is a key feature in many cancers, with mechanisms still under investigation.
- Early protein kinase inhibitors (PKIs) from natural products had high cytotoxicity, while synthetic ones face drug resistance.
- Understanding kinase function is vital for developing targeted cancer therapies.
Purpose of the Study:
- To review the progress in understanding protein kinases' role in cancer.
- To analyze FDA-approved and failed natural product-derived kinase inhibitors (NPDKIs).
- To advance medicinal chemistry strategies for developing safer and more effective PKIs.
Main Methods:
- Literature review of protein kinase function and dysregulation in cancer.
- Analysis of synthesis and modification of FDA-approved NPDKIs.
- Examination of NPDKIs that failed clinical trials.
Main Results:
- Identified challenges in current PKI development, including toxicity and drug resistance.
- Highlighted successful and unsuccessful strategies in NPDKI development.
- Provided insights into the chemical modifications influencing PKI efficacy and safety.
Conclusions:
- Further research into NPDKIs can lead to improved cancer treatment outcomes.
- Medicinal chemistry approaches should focus on enhancing efficacy while minimizing toxicity.
- Understanding historical NPDKI successes and failures is key to future drug design.
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