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January 24, 20260 citations

A PNPLA3-NACC1-RIPK3 pathway mediates macrophage necroptosis and inflammation in MASLD.

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XWXinjia WangLBLu BianZFZhuoying Feng

Key Points

  • To investigate how the PNPLA3 148M variant influences inflammation and necroptosis in macrophages related to MASLD.
  • Analyzed the macrophage-specific NF-κB-NACC1-RIPK3 signaling pathway
  • Assessed the role of the PNPLA3 variant in enhancing necroptosis
  • Evaluated hepatocyte steatosis and HSC activation in the context of inflammation
  • The PNPLA3 148M variant leads to increased necroptosis in macrophages
  • Enhanced inflammatory signaling significantly exacerbates hepatocyte steatosis
  • NACC1 is identified as a potential therapeutic target for individuals with the PNPLA3 variant.

Abstract

The PNPLA3 148M variant promotes MASLD through a macrophage-specific NF-κB-NACC1-RIPK3 axis that enhances necroptosis and inflammatory signaling, thereby exacerbating hepatocyte steatosis and HSC activation. NACC1 emerges as a tractable therapeutic target for genetically at-risk individuals.

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Cite This Study

Wang et al. (2026) studied this question.

synapsesocial.com/papers/69746126bb9d90c67120b03fhttps://doi.org/10.1097/hc9.0000000000000890
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1PNPLA3I148M-associated MASLD susceptibility : the pivotal role of microbiota-driven metabolic dysregulation2025
  2. 2Myeloid Mas drives pyruvate kinase M2-mediated Spi1 lactylation to fuel inflammatory senescence in MASLD2026 · 1 citations
  3. 3Hepatocyte‐Derived Extracellular Vesicles Deliver miR‐328‐3p to Trigger PP2A‐B56δ–Mediated p‐NLRP3 <sup>S295</sup> ‐Dependent Metaflammation in Macrophages upon Microcystin‐LR Exposure2025
  4. 4Mitochondrial antiviral signaling protein enhances MASLD progression through the ERK/TNFα/NFκβ pathway2024 · 13 citations
  5. 5MSR1 Drives MASLD Progression Via Disrupting FoxO3a ‐ SOD3 Mediated Redox Balance in Liver Macrophages2026