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doi: 10.3390/cells11071132 , 10.5281/zenodo.6355717 , 10.5281/zenodo.6358561 , 10.5281/zenodo.6387599 , 10.5281/zenodo.6358415 , 10.5281/zenodo.6358982 , 10.5281/zenodo.6387600 , 10.5281/zenodo.6355718 , 10.5281/zenodo.6358416 , 10.5281/zenodo.6358562 , 10.5281/zenodo.6358983
pmid: 35406696
pmc: PMC8997844
doi: 10.3390/cells11071132 , 10.5281/zenodo.6355717 , 10.5281/zenodo.6358561 , 10.5281/zenodo.6387599 , 10.5281/zenodo.6358415 , 10.5281/zenodo.6358982 , 10.5281/zenodo.6387600 , 10.5281/zenodo.6355718 , 10.5281/zenodo.6358416 , 10.5281/zenodo.6358562 , 10.5281/zenodo.6358983
pmid: 35406696
pmc: PMC8997844
The elimination of intracellular components by autophagy maintains metabolic homeostasis and is a quality-control pathway that enables organelle regeneration. Mitophagy is a type of selective autophagy that regulates mitochondrial turnover, and the dysregulation of mitophagy has been implicated in the pathogenesis of liver diseases. However, the detailed molecular mechanism underlying mitophagy regulation in liver cells remains unclear, and the small molecules that may potentially modulate hepatic mitophagy are still unavailable. Here, we report that baicalein, a flavonoid extracted from Scutellaria baicalensis, induces the entire autophagy that proceeds through the autolysosome maturation stage in human hepatoma cells. In addition, baicalein-induced autophagy is demonstrated to target mitochondria for degradation. Further studies show that baicalein triggers the translocation of Parkin and TBK1 to mitochondria to induce mitophagy. Moreover, the phosphorylation of TBK1 at Ser172 and ubiquitin at Ser65 is shown to trigger mitophagy in baicalein-treated cells. Furthermore, two specific autophagy cargo receptors, NDP52 and OPTN, that function in baicalein-activated mitophagy are identified. Taken together, these findings not only delineate the molecular process of Parkin-dependent mitophagy in liver cells, but also reveal baicalein as a novel inducer of hepatic mitophagy.
selective autophagy, autophagy, baicalein, QH573-671, Ubiquitin-Protein Ligases, Mitophagy, Membrane Transport Proteins, Nuclear Proteins, Cell Cycle Proteins, Protein Serine-Threonine Kinases, Article, mitophagy, Flavanones, autophagy; mitophagy; baicalein; selective autophagy; parkin; cargo receptor, cargo receptor, Humans, parkin, Cytology
selective autophagy, autophagy, baicalein, QH573-671, Ubiquitin-Protein Ligases, Mitophagy, Membrane Transport Proteins, Nuclear Proteins, Cell Cycle Proteins, Protein Serine-Threonine Kinases, Article, mitophagy, Flavanones, autophagy; mitophagy; baicalein; selective autophagy; parkin; cargo receptor, cargo receptor, Humans, parkin, Cytology
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 14 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Top 10% | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Top 10% |
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