ArticleCells2026
Decoding the Cellular Response to Methylthioadenosine Uncovers Novel Targets for Chronic Liver Disease.
Article in Cells, 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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7 authors.
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Abstract
Progressive familial intrahepatic cholestasis type 3 (PFIC3), caused by MDR3 deficiency (MDR2 in mice), is a lethal pediatric liver disease characterized by early-onset persistent cholestasis, progressive fibrosis, cirrhosis, and eventual liver failure. MDR3 is a phosphatidylcholine transporter located in the canalicular membrane of hepatocytes, and its deficiency leads to the accumulation of free bile acids, which damage epithelial cells due to their detergent-like effect. Therapeutic options remain limited, highlighting the need to identify molecular drivers of disease progression and novel pharmacological strategies. To investigate the molecular alterations associated with this deficiency, our laboratory performed functional proteomic analyses in patient samples and murine hepatic organoids, revealing consistent reprogramming of one-carbon metabolism (OCM). Based on these findings, we explored the therapeutic potential and molecular mechanisms of 5'-methylthioadenosine (MTA), a metabolite involved in this pathway. Using hepatocellular carcinoma cells (PLCs), we combined quantitative shotgun proteomics with the proteome integral solubility alteration (PISA) assay to characterize functional responses and identify direct protein targets of MTA. To reinforce the physiological relevance of our findings, we extended the PISA analysis to liver protein extracts from the Mdr2
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