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    1. Developmental Biology

    Regulated delivery controls Drosophila Hedgehog, Wingless, and Decapentaplegic signaling

    Ryo Hatori et al.
    Delivery of Hedgehog, Decapentaplegic and Wingless to target cells in the Drosophila wing imaginal disc is regulated in both amount and destination, and is not dependent on constitutive release or uptake from a common pool.
    1. Developmental Biology
    2. Evolutionary Biology

    Long-distance communication by specialized cellular projections during pigment pattern development and evolution

    Dae Seok Eom et al.
    Cells of the xanthophore lineage form projections that allow them to communicate with other pigment cells during adult pigment pattern formation in zebrafish, but not in the closely-related pearl danio.
    1. Cell Biology
    2. Developmental Biology

    Proteolytic processing of palmitoylated Hedgehog peptides specifies the 3-4 intervein region of the Drosophila wing

    Sabine Schürmann et al.
    Proteolysis of lipidated N-terminal peptides that tether Hedgehog morphogens to the surface of source cells is absolutely required for their coupled release and bioactivation in vivo in Drosophila melanogaster.
    1. Developmental Biology
    2. Physics of Living Systems

    Quantitative analyses reveal extracellular dynamics of Wnt ligands in Xenopus embryos

    Yusuke Mii et al.
    Wnt distribution is regulated by a dynamic exchange of its abundant scaffold-bound and rare freely diffusing populations, providing insights into a conceived dilemma of speed and stability of tissue patterning.
  1. Eph and Ephrin function in dispersal and epithelial insertion of pigmented immunocytes in sea urchin embryos

    Oliver A Krupke et al.
    Eph receptor signaling commonly excludes migrating embryonic cells from regions of high ligand density; however, in sea urchin embryos pigmented immunocytes are attracted to regions expressing high levels of Ephrin.
    1. Cell Biology
    2. Developmental Biology

    Relish plays a dynamic role in the niche to modulate Drosophila blood progenitor homeostasis in development and infection

    Parvathy Ramesh et al.
    Ecdysone-mediated regulation of Relish expression and activation in the hematopoietic niche is essential for progenitor maintenance in the Drosophila Lymph gland.
    1. Developmental Biology
    2. Cell Biology

    Direct visualization of a native Wnt in vivo reveals that a long-range Wnt gradient forms by extracellular dispersal

    Ariel M Pani, Bob Goldstein
    Free, extracellular dispersal of Wnt proteins generates a long-range gradient during animal development and is required for signaling.
    1. Developmental Biology

    The vascular niche controls Drosophila hematopoiesis via fibroblast growth factor signaling

    Manon Destalminil-Letourneau et al.
    Two niches contribute to the control of Drosophila blood cell homeostasis through their differential regulation of hematopoietic progenitors.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    Stem cell niche exit in C. elegans via orientation and segregation of daughter cells by a cryptic cell outside the niche

    Kacy L Gordon et al.
    A previously undetected dynamic cell structure orients the mitotic spindle of germ stem cells and grows over one daughter cell, thus helping to balance niche retention with niche exit.
    1. Developmental Biology

    A mammalian Wnt5a–Ror2–Vangl2 axis controls the cytoskeleton and confers cellular properties required for alveologenesis

    Kuan Zhang et al.
    Regulation of cellular properties such as ligand secretion and migratory ability through changes in the cytoskeleton mediated by a Wnt5a–Ror2–Vangl2 axis is a major determinant of alveolar formation.