Ganoderma lucidum Stimulates Autophagy-Dependent Longevity Pathways in Caenorhabditis elegans and Human Cells
- Author: mycolabadmin
- 2021-05-20
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Summary
This research shows that the medicinal mushroom Ganoderma lucidum (reishi) can extend lifespan by activating cellular cleaning and stress resistance mechanisms. The study found that compounds from this mushroom work similarly to caloric restriction, a known way to extend lifespan, but without requiring dietary changes.
Impacts on everyday life:
– Suggests reishi mushroom supplements might help promote healthy aging
– Identifies natural compounds that could mimic benefits of caloric restriction without strict dieting
– Provides scientific support for traditional use of reishi as a health tonic
– Opens possibilities for developing new anti-aging supplements
– Demonstrates how traditional medicines can have measurable biological effects
Background
Ganoderma lucidum (GL) is a medicinal fungus traditionally used in Asia as a health tonic. While it has various known bioactivities, its effects on aging and lifespan were not well understood. Previous research has shown that aging can be modulated by genes, diet and lifestyle, with caloric restriction and certain compounds able to extend lifespan in various species.
Objective
To investigate whether G. lucidum extract affects longevity and to determine the molecular mechanisms involved, particularly focusing on autophagy pathways in both C. elegans and human cells.
Results
The G. lucidum water extract extended C. elegans lifespan by 45% compared to controls. The extract reduced levels of fibrillarin (FIB-1) protein and increased expression of the autophagy marker LGG-1. The lifespan extension required functional atg-18, daf-16, and sir-2.1 genes, indicating involvement of autophagy and stress resistance pathways. In human cells, G. lucidum induced autophagy by reducing phosphorylated mTOR levels and increasing LC3 protein levels. A sub-fraction containing compounds <10 kDa (10K-2) was particularly effective at inducing these effects.
Conclusion
G. lucidum and its low molecular weight compounds can extend lifespan by activating autophagy and stress resistance pathways. The findings suggest G. lucidum polysaccharides and oligosaccharides could potentially serve as caloric restriction mimetics, though further testing in animal models is needed to confirm these effects.
- Published in:Aging (Albany NY),
- Study Type:Laboratory Research,
- Source: 10.18632/aging.203068