Non-canonical WNT5A-ROR signaling: New perspectives on an ancient developmental pathway. 2023

Sara E Konopelski Snavely, and Srisathya Srinivasan, and Courtney A Dreyer, and Jia Tan, and Kermit L Carraway, and Hsin-Yi Henry Ho
Department of Cell Biology and Human Anatomy, University of California Davis, School of Medicine, Davis, CA, United States.

Deciphering non-canonical WNT signaling has proven to be both fascinating and challenging. Discovered almost 30 years ago, non-canonical WNT ligands signal independently of the transcriptional co-activator β-catenin to regulate a wide range of morphogenetic processes during development. The molecular and cellular mechanisms that underlie non-canonical WNT function, however, remain nebulous. Recent results from various model systems have converged to define a core non-canonical WNT pathway consisting of the prototypic non-canonical WNT ligand, WNT5A, the receptor tyrosine kinase ROR, the seven transmembrane receptor Frizzled and the cytoplasmic scaffold protein Dishevelled. Importantly, mutations in each of these signaling components cause Robinow syndrome, a congenital disorder characterized by profound tissue morphogenetic abnormalities. Moreover, dysregulation of the pathway has also been linked to cancer metastasis. As new knowledge concerning the WNT5A-ROR pathway continues to grow, modeling these mutations will likely provide crucial insights into both the physiological regulation of the pathway and the etiology of WNT5A-ROR-driven diseases.

UI MeSH Term Description Entries
D009024 Morphogenesis The development of anatomical structures to create the form of a single- or multi-cell organism. Morphogenesis provides form changes of a part, parts, or the whole organism.
D000071818 Wnt-5a Protein A Wnt protein and ligand for FRIZZLED RECEPTORS that may function as an inhibitor or activator of the WNT SIGNALING PATHWAY. For example, it activates signaling in the presence of Frizzled-4 but is inhibitory when coupled with ROR2 TYROSINE KINASE. It is required for axis formation during EMBRYOGENESIS and inhibits the proliferation, migration, and invasiveness of cancer cells. Wingless-Type MMTV Integration Site Family, Member 5A,Wnt5a Protein,Wingless Type MMTV Integration Site Family, Member 5A,Wnt 5a Protein
D015398 Signal Transduction The intracellular transfer of information (biological activation/inhibition) through a signal pathway. In each signal transduction system, an activation/inhibition signal from a biologically active molecule (hormone, neurotransmitter) is mediated via the coupling of a receptor/enzyme to a second messenger system or to an ion channel. Signal transduction plays an important role in activating cellular functions, cell differentiation, and cell proliferation. Examples of signal transduction systems are the GAMMA-AMINOBUTYRIC ACID-postsynaptic receptor-calcium ion channel system, the receptor-mediated T-cell activation pathway, and the receptor-mediated activation of phospholipases. Those coupled to membrane depolarization or intracellular release of calcium include the receptor-mediated activation of cytotoxic functions in granulocytes and the synaptic potentiation of protein kinase activation. Some signal transduction pathways may be part of larger signal transduction pathways; for example, protein kinase activation is part of the platelet activation signal pathway. Cell Signaling,Receptor-Mediated Signal Transduction,Signal Pathways,Receptor Mediated Signal Transduction,Signal Transduction Pathways,Signal Transduction Systems,Pathway, Signal,Pathway, Signal Transduction,Pathways, Signal,Pathways, Signal Transduction,Receptor-Mediated Signal Transductions,Signal Pathway,Signal Transduction Pathway,Signal Transduction System,Signal Transduction, Receptor-Mediated,Signal Transductions,Signal Transductions, Receptor-Mediated,System, Signal Transduction,Systems, Signal Transduction,Transduction, Signal,Transductions, Signal
D051153 Wnt Proteins Wnt proteins are a large family of secreted glycoproteins that play essential roles in EMBRYONIC AND FETAL DEVELOPMENT, and tissue maintenance. They bind to FRIZZLED RECEPTORS and act as PARACRINE PROTEIN FACTORS to initiate a variety of SIGNAL TRANSDUCTION PATHWAYS. The canonical Wnt signaling pathway stabilizes the transcriptional coactivator BETA CATENIN. Wingless Type Protein,Wnt Factor,Wnt Protein,Wingless Type Proteins,Wnt Factors,Factor, Wnt,Protein, Wingless Type,Protein, Wnt,Type Protein, Wingless
D057050 Receptor Tyrosine Kinase-like Orphan Receptors A family of cell surface receptors that were originally identified by their structural homology to neurotropic TYROSINE KINASES and referred to as orphan receptors because the associated ligand and signaling pathways were unknown. Evidence for the functionality of these proteins has been established by experiments showing that disruption of the orphan receptor genes results in developmental defects. Receptor Tyrosine Kinase-like Orphan Receptor,NTRKR Receptors,Neurotrophic Tyrosine Kinase, Receptor-related Proteins,ROR Tyrosine Kinase Receptors,ROR1 Tyrosine Kinase,ROR2 Tyrosine Kinase,Receptor Tyrosine Kinase-like Orphan Receptor 1,Receptor Tyrosine Kinase-like Orphan Receptor 2,Kinase, ROR2 Tyrosine,Neurotrophic Tyrosine Kinase, Receptor related Proteins,Receptor Tyrosine Kinase like Orphan Receptor,Receptor Tyrosine Kinase like Orphan Receptor 1,Receptor Tyrosine Kinase like Orphan Receptor 2,Receptor Tyrosine Kinase like Orphan Receptors,Tyrosine Kinase, ROR1
D060449 Wnt Signaling Pathway A complex signaling pathway whose name is derived from the DROSOPHILA Wg gene, and the vertebrate INT gene. The signaling pathway is initiated by the binding of WNT PROTEINS to cell surface WNT RECEPTORS which interact with the AXIN SIGNALING COMPLEX and an array of second messengers that influence the actions of BETA CATENIN. Wnt Signaling,Wnt Pathway,Wnt Pathway, Canonical,Wnt beta-Catenin Signaling Pathway,Canonical Wnt Pathway,Canonical Wnt Pathways,Pathway, Canonical Wnt,Pathway, Wnt,Pathway, Wnt Signaling,Signaling Pathway, Wnt,Signaling, Wnt,Wnt Signaling Pathways,Wnt Signalings,Wnt beta Catenin Signaling Pathway

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