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Anticancer and Reversing Multidrug Resistance Activities of Natural Isoquinoline Alkaloids and their
Zhi-Xing Qing1,2, Jia-Lu Huang1, Xue-Yi Yang1
1Hunan Co-Innovation Center for Utilization of Botanical Functional Ingredients & College of Veterinary Medicine, Hunan Agricultural University, Changsha, China.
Abstract:
The severe anticancer situation as well as the emergence of multidrug-resistant (MDR) cancer cells has created an urgent need for the development of novel anticancer drugs with different mechanisms of action. A large number of natural alkaloids, such as paclitaxel, vinblastine and camptothecin have already been successfully developed into chemotherapy agents. Following the success of these natural products, in this review, twenty-six types of isoquinoline alkaloids (a total of 379 alkaloids), including benzyltetrahydroisoquinoline, aporphine, oxoaporphine, isooxoaporphine, dimeric aporphine, bisbenzylisoquinoline, tetrahydroprotoberberine, protoberberine, protopine, dihydrobenzophenanthridine, benzophenanthridine, benzophenanthridine dimer, ipecac, simple isoquinoline, pavine, montanine, erythrina, chelidonine, tropoloisoquinoline, azafluoranthene, phthalideisoquinoline, naphthylisoquinoline, lycorine, crinane, narciclasine, and phenanthridone, were summarized based on their cytotoxic and MDR reversing activities against various cancer cells. Additionally, the structure-activity relationships of different types of isoquinoline alkaloid were also discussed. Interestingly, some aporphine, oxoaporphine, isooxoaporphine, bisbenzylisoquinoline, and protoberberine alkaloids display more potent anticancer activities or anti-MDR effects than positive control against the tested cancer cells and are regarded as attractive targets for discovery new anticancer drugs or lead compounds.
Insights
Natural isoquinoline alkaloids show potent anticancer and multidrug-resistance (MDR) reversing activities. Certain types, like aporphine and protoberberine, are promising leads for new cancer drug development.
Area of Science:
- Natural Product Chemistry
- Pharmacology
- Medicinal Chemistry
Background:
- The rise of multidrug-resistant (MDR) cancers necessitates novel therapeutic agents.
- Natural alkaloids like paclitaxel have proven successful in chemotherapy.
- There is an urgent need for anticancer drugs with diverse mechanisms of action.
Purpose of the Study:
- To review 379 isoquinoline alkaloids from 26 classes for their anticancer and MDR reversing properties.
- To discuss structure-activity relationships of these alkaloids.
- To identify promising isoquinoline alkaloid subclasses for new drug discovery.
Main Methods:
- Literature review of 379 isoquinoline alkaloids.
- Summary of cytotoxic and MDR reversing activities against cancer cells.
- Analysis of structure-activity relationships.
Main Results:
- Twenty-six types of isoquinoline alkaloids were evaluated.
- Some aporphine, oxoaporphine, isooxoaporphine, bisbenzylisoquinoline, and protoberberine alkaloids exhibited superior anticancer or anti-MDR effects compared to controls.
- These specific subclasses show significant potential as anticancer drug leads.
Conclusions:
- Isoquinoline alkaloids represent a rich source of anticancer compounds.
- Specific subclasses, including aporphine and protoberberine derivatives, demonstrate significant potential for developing novel anticancer therapeutics.
- Further investigation into these compounds could lead to effective treatments for MDR cancers.
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