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HCK regulates NLRP12-mediated PANoptosis.

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|May 23, 2025
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Hematopoietic cell kinase (HCK) regulates NLRP12-mediated PANoptosis, a cell death pathway crucial for immunity. Understanding this interaction may offer new therapeutic targets for inflammatory diseases.

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Area of Science:

  • Immunology
  • Cell Biology
  • Molecular Medicine

Background:

  • NOD-like receptors (NLRs) are crucial cytosolic pattern recognition receptors in innate immunity.
  • NLRP12 regulates PANoptosis, an inflammatory cell death pathway implicated in various diseases.
  • The precise molecular mechanisms governing NLRP12 activation are not well understood.

Purpose of the Study:

  • To identify novel regulators of NLRP12-mediated PANoptosis.
  • To elucidate the molecular interaction between NLRP12 and its regulators.
  • To explore potential therapeutic targets for NLRP12-associated pathologies.

Main Methods:

  • Investigated hematopoietic cell kinase (HCK) as a potential NLRP12 regulator.
  • Utilized gene knockdown (Hck knockdown) to assess effects on PANoptosis.
  • Performed computational analyses to predict and validate NLRP12-HCK interaction sites.

Main Results:

  • HCK expression is upregulated upon NLRP12-PANoptosome activation.
  • HCK knockdown significantly inhibits NLRP12-mediated PANoptosis.
  • Identified a putative interaction interface between HCK and NLRP12's NACHT-PYD region, confirmed by in vitro assays.

Conclusions:

  • Hematopoietic cell kinase (HCK) is a novel regulator of NLRP12-mediated PANoptosis.
  • HCK's interaction with NLRP12 is critical for PANoptosis induction.
  • HCK represents a potential therapeutic target for modulating inflammation and disease.