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Updated: Feb 22, 2026

Biosynthesis of a Flavonol from a Flavanone by Establishing a One-pot Bienzymatic Cascade
Published on: August 14, 2019
Autophagy as a Molecular Target of Flavonoids Underlying their Protective Effects in Human Disease
Nestor Prieto-Domínguez1, Maria V Garcia-Mediavilla1,2, Sonia Sanchez-Campos1,2
1Institute of Biomedicine (IBIOMED), University of Leon, Leon, Spain.
Background:
Autophagy is a cellular pathway with the ability to maintain cell homeostasis through the elimination of damaged or useless cellular components, and its deregulation may initiate or aggravate different human diseases. Flavonoids, a group of plant metabolites, are able to modulate different molecular and cellular processes including autophagy.
Objective:
To review the effects of flavonoids on autophagy pathway in both invasive and noninvasive human diseases, focusing on the global outcomes in their progression. Moreover, the efficacy of the combination of flavonoids with drugs or other natural nontoxic compounds was also reviewed.
Methods:
A literature search was performed to identify and analyze peer-reviewed publications containing in vitro and in vivo studies focused on autophagy deregulation in different proliferative and non-proliferative pathologies and the potential protective effects of flavonoids.
Results:
Analyzed publications indicated that imbalance between cell death and survival induced by changes in autophagy play an important role in the pathophysiology of a number of human diseases. The use of different flavonoids as autophagy modulators, alone or in combination with other molecules, might be a worthy strategy in the treatment of cancer, neurodegenerative disorders, cardiovascular diseases, hepatic diseases, leishmaniasis, influenza, gastric ulcers produced by Helicobacter pylori infection, diabetes, asthma, age-related macular degeneration or osteoporosis.
Conclusion:
Flavonoids could potentially constitute important adjuvant agents of conventional therapies in the treatment of autophagy deregulation-related diseases. Moreover, combined therapy may help to diminish the doses of those conventional treatments, leading to reduced drug-derivative side effects and to improved patients' survival.
Insights
Flavonoids can modulate autophagy, a cellular process crucial for homeostasis. This review highlights their potential as adjuvant therapies for various diseases by influencing autophagy pathways, possibly reducing side effects of conventional treatments.
Area of Science:
- Biochemistry
- Cell Biology
- Pharmacology
Background:
- Autophagy is a vital cellular process for maintaining homeostasis by removing damaged components.
- Dysregulation of autophagy is implicated in the initiation and progression of numerous human diseases.
- Flavonoids, plant-derived metabolites, possess the ability to modulate cellular processes, including autophagy.
Purpose of the Study:
- To review the impact of flavonoids on the autophagy pathway in human diseases.
- To assess the role of flavonoids in both invasive and non-invasive disease progression.
- To evaluate the efficacy of combining flavonoids with other therapeutic agents.
Main Methods:
- A comprehensive literature search was conducted.
- Peer-reviewed in vitro and in vivo studies were analyzed.
- Focus was placed on autophagy deregulation and flavonoid effects in various pathologies.
Main Results:
- Autophagy imbalance significantly contributes to the pathophysiology of many human diseases.
- Flavonoids demonstrate potential as autophagy modulators for treating cancer, neurodegenerative disorders, and cardiovascular diseases.
- Combinations of flavonoids with other agents may enhance therapeutic outcomes for conditions like diabetes and infections.
Conclusions:
- Flavonoids show promise as adjuvant agents in treating diseases linked to autophagy deregulation.
- Combined therapies involving flavonoids could reduce conventional drug dosages and minimize side effects.
- The use of flavonoids may lead to improved patient survival rates in various conditions.
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