ArticleToxics2026
Fucoidan Protects Against Cadmium-Induced Cytotoxicity in PK-15 Cells by Restoring Autophagic Flux: Involvement of the TFEB Signaling Pathway.
Article in Toxics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
7 authors.
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Abstract
Cadmium (Cd) is a persistent environmental pollutant that poses a significant health risk to humans and animals, with acute exposure known to induce kidney injury. Fucoidan (Fc), a natural bioactive polysaccharide derived from brown algae, exhibits diverse biological activities; however, its potential to protect against Cd-induced kidney damage and the underlying mechanisms remain unclear. In this study, we investigated the effects of Fc on Cd-induced renal injury in vitro and further explored the role of transcription factor EB (TFEB) in regulating autophagy in its protective mechanism. Our results demonstrate that in Cd-exposed porcine kidney cells (PK-15), Fc suppressed the expression of renal inflammatory factors (TNF-α, IL-1β) and kidney injury markers (NGAL, NTN-1, KIM-1), reduced reactive oxygen species (ROS) production, and downregulated apoptosis-related proteins (cleaved caspase-3 and cleaved caspase-9). Mechanistically, Fc upregulated TFEB protein expression, enhanced the levels of lysosomal function-related proteins (Cathepsin B, CTSB; Cathepsin D, CTSD), and reversed Cd-induced autophagic flux blockade. Importantly, TFEB silencing abolished the protective effects of Fc. Collectively, these findings suggest that Fc exerts renoprotective effects against Cd-induced injury by restoring autophagic flux, a process that involves TFEB.
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