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Progress on the functions and mechanisms of natural products in anti-glioma therapy
Yanting Li1, Shuhui Qu1, Jiayi Zuo1
1Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing, 210009, China.
Abstract:
Glioma, the most prevalent primary tumor of the central nervous system (CNS), is also the most lethal primary malignant tumor. Currently, there are limited chemotherapeutics available for glioma treatment, necessitating further research to identify and develop new chemotherapeutic agents. A significant approach to discovering anti-glioma drugs involves isolating antitumor active ingredients from natural products (NPs) and optimizing their structures. Additionally, targeted drug delivery systems (TDDSs) are employed to enhance drug solubility and stability and overcome the blood-brain barrier (BBB). TDDSs can penetrate deep into the brain, increase drug concentration and retention time in the CNS, and improve the targeting efficiency of NPs, thereby reducing adverse effects and enhancing anti-glioma efficacy. This paper reviews the research progress of anti-glioma activities of NPs, including alkaloids, polyphenols, flavonoids, terpenoids, saponins, quinones, and their synthetic derivatives over the past decade. The review also summarizes anti-glioma mechanisms, such as suppression of related protein expression, regulation of reactive oxygen species (ROS) levels, control of apoptosis signaling pathways, reduction of matrix metalloproteinases (MMPs) expression, blocking of vascular endothelial growth factor (VEGF), and reversal of immunosuppression. Furthermore, the functions and advantages of NP-based TDDSs in anti-glioma therapy are examined. The key information presented in this review will be valuable for the research and development of NP-based anti-glioma drugs and related TDDSs.
Insights
Natural products (NPs) show promise for treating lethal brain tumors like glioma. Combining NPs with targeted drug delivery systems (TDDSs) enhances efficacy and reduces side effects, offering new therapeutic avenues.
Area of Science:
- Neuro-oncology
- Pharmacology
- Natural Product Chemistry
Background:
- Glioma is the most common and lethal primary central nervous system (CNS) tumor.
- Limited effective chemotherapeutics exist for glioma treatment, driving the need for novel agents.
- Natural products (NPs) are a rich source for identifying and developing anti-glioma compounds.
Purpose of the Study:
- To review the anti-glioma activities of natural products and their synthetic derivatives.
- To summarize the mechanisms of action for these anti-glioma natural products.
- To examine the role of targeted drug delivery systems (TDDSs) in enhancing NP-based glioma therapy.
Main Methods:
- Comprehensive literature review of research on natural products and glioma over the past decade.
- Analysis of anti-glioma mechanisms including protein suppression, ROS regulation, apoptosis, MMPs, VEGF, and immunosuppression.
- Evaluation of natural product-based targeted drug delivery systems (TDDSs) for overcoming the blood-brain barrier (BBB).
Main Results:
- Various classes of natural products (alkaloids, polyphenols, flavonoids, terpenoids, saponins, quinones) and their derivatives exhibit anti-glioma activity.
- Identified mechanisms include modulation of key signaling pathways and cellular processes crucial for tumor growth and survival.
- Natural product-based TDDSs demonstrate potential to improve drug solubility, stability, BBB penetration, and CNS drug concentration.
Conclusions:
- Natural products offer a promising strategy for developing new anti-glioma therapeutics.
- Understanding NP anti-glioma mechanisms is crucial for drug development.
- Integrating NPs with TDDSs can significantly enhance therapeutic outcomes for glioma patients.
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