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Related Experiment Video

Updated: Apr 30, 2026

Effect of Male Accessory Gland Products on Egg Laying in Gastropod Molluscs
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Promiscuity is not always bad.

Heng Ru1, Pengfei Zhang1, Hao Wu1

  • 1Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA.

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Summary
This summary is machine-generated.

The sorting adaptor TIRAP controls Myddosome assembly after Toll-like receptor activation. This process occurs from both the cell surface and endosomes, driven by TIRAP

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Area of Science:

  • Immunology
  • Cell Biology
  • Molecular Signaling

Background:

  • Toll-like receptors (TLRs) are crucial for innate immunity, initiating signaling cascades upon pathogen recognition.
  • Myddosome complex assembly is a key early step in TLR signaling, leading to downstream inflammatory responses.
  • The precise regulation of Myddosome formation at different cellular locations remains incompletely understood.

Purpose of the Study:

  • To investigate the role of the sorting adaptor TIRAP in Myddosome assembly.
  • To determine how TIRAP integrates signals from cell surface and endosomal TLR activation.
  • To elucidate the molecular mechanisms underlying TIRAP-mediated Myddosome formation.

Main Methods:

  • Utilized biochemical assays to study protein-protein interactions.
  • Employed cell-based models to visualize Myddosome assembly dynamics.
  • Investigated the role of lipid binding in TIRAP function.

Main Results:

  • Demonstrated that TIRAP is essential for Myddosome assembly following TLR activation.
  • Showed that TIRAP functions at both the cell surface and endosomal compartments.
  • Identified promiscuous lipid binding as a critical mechanism for TIRAP's regulatory role.

Conclusions:

  • TIRAP acts as a critical sorting adaptor regulating Myddosome assembly.
  • Lipid interactions enable TIRAP to coordinate TLR signaling from diverse cellular locations.
  • This study provides new insights into the spatial and molecular regulation of innate immune signaling.