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Application of Impermeable Barriers Combined with Candidate Factor Soaked Beads to Study Inductive Signals in the Chick

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Compartmentalizing the embryo: lipids and septate junction mediated barrier function.

Kristina E Ile¹, Andrew D Renault

¹Max Planck Institute for Developmental Biology, Tübingen, Germany.

|December 11, 2012

Summary

Lipid phosphate phosphatases (LPPs) are enzymes with crucial roles in development. This study finds Wunen (Wun), a fly LPP, is essential for tracheal system barrier function.

Keywords:

Drosophila Serpentine Vermiform Wunen Wunen2 barrier septate junction trachea

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Application of Impermeable Barriers Combined with Candidate Factor Soaked Beads to Study Inductive Signals in the Chick

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Published on: September 11, 2014

Area of Science:

Biochemistry
Developmental Biology
Enzymology

Background:

Lipid phosphate phosphatases (LPPs) dephosphorylate lysophospholipids.
LPP family members have diverse developmental roles, including mouse vascular development (LPP3) and fly embryogenesis (Wunen/Wun2).

Purpose of the Study:

To investigate further developmental roles of fly LPPs, specifically Wunen (Wun).
To explore the role of Wun in tracheal system formation and barrier function.

Main Methods:

Analysis of knockout models.
Examination of tracheal system development and barrier function.

Main Results:

Wunen (Wun) is required for proper tracheal formation in flies.
Wun plays a critical role in maintaining septate junction-mediated barrier function within the tracheal system.

Conclusions:

Fly LPP Wunen is essential for tracheal development and barrier integrity.
LPPs may influence biological barrier activity through mechanisms involving septate junctions.