The co-receptor Tetraspanin12 directly captures Norrin to promote ligand-specific β-catenin signaling.

Wnt/β-catenin signaling directs animal development and tissue renewal in a tightly controlled, cell- and tissue-specific manner. In the mammalian central nervous system, the atypical ligand Norrin controls angiogenesis and maintenance of the blood-brain barrier and blood-retina barrier through the Wnt/β-catenin pathway. Like Wnt, Norrin activates signaling by binding and heterodimerizing the receptors Frizzled (Fzd) and low-density lipoprotein receptor-related protein 5 or 6 (LRP5/6), leading to membrane recruitment of the intracellular transducer Dishevelled (Dvl) and ultimately stabilizing the transcriptional coactivator β-catenin.

Women Physicians and Nurses in Treatment for Substance Use Disorders: Commonalities and Disparities by Profession.

Women physicians and nurses are health professionals with significant differences in their role, but they share common social and occupational stressors. This study compares the outcomes of female physicians and nurses in treatment in a highly specialized program for health professionals with substance use disorders. This was a 9-year, survival, observational, cohort study, conducted with data from medical e-records of female nurses (n = 58) and physicians (n = 50) in treatment for addictions.

Comparing nurses attending a specialised mental health programme with and without substance use disorder: a retrospective, observational study in Spain.

Objectives: To analyse the differences between nurses with and without substance use disorders (SUDs) admitted to a specialised mental health programme.

Design: Retrospective, observational study.

Setting: Specialised mental health treatment programme for nurses in Catalonia, Spain.

The co-receptor Tetraspanin12 directly captures Norrin to promote ligand-specific β-catenin signaling.

Wnt/β-catenin signaling directs animal development and tissue renewal in a tightly controlled, cell- and tissue-specific manner. In the mammalian central nervous system, the atypical ligand Norrin controls angiogenesis and maintenance of the blood-brain barrier and blood-retina barrier through the Wnt/β-catenin pathway. Like Wnt, Norrin activates signaling by binding and heterodimerizing the receptors Frizzled (Fzd) and Low-density lipoprotein receptor-related protein 5 or 6 (LRP5/6), leading to membrane recruitment of the intracellular transducer Dishevelled (Dvl) and ultimately stabilizing the transcriptional coactivator β-catenin.

PI(4,5)P-stimulated positive feedback drives the recruitment of Dishevelled to Frizzled in Wnt-β-catenin signaling.

In the Wnt-β-catenin pathway, Wnt binding to Frizzled (Fzd) and LRP5 or LRP6 (LRP5/6) co-receptors inhibits the degradation of the transcriptional coactivator β-catenin by recruiting the cytosolic effector Dishevelled (Dvl). Polymerization of Dvl at the plasma membrane recruits the β-catenin destruction complex, enabling the phosphorylation of LRP5/6, a key step in inhibiting β-catenin degradation. Using purified Fzd proteins reconstituted in lipid nanodiscs, we investigated the factors that promote the recruitment of Dvl to the plasma membrane.