2015
DOI: 10.1016/j.cub.2015.09.020
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Drosophila Lgr3 Couples Organ Growth with Maturation and Ensures Developmental Stability

Abstract: Early transplantation and grafting experiments suggest that body organs follow autonomous growth programs [1-3], therefore pointing to a need for coordination mechanisms to produce fit individuals with proper proportions. We recently identified Drosophila insulin-like peptide 8 (Dilp8) as a relaxin and insulin-like molecule secreted from growing tissues that plays a central role in coordinating growth between organs and coupling organ growth with animal maturation [4, 5]. Deciphering the function of Dilp8 in g… Show more

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Cited by 161 publications
(218 citation statements)
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“…This homology has led to the proposal that insulin-like peptides, especially Dilp8, may function as ligands for Lgr3 in Drosophila (39). Dilp8 has been implicated in the regulation of developmental timing and growth in the larva (40,41), and Lgr3 has recently been found to be necessary for this Dilp8 function (42)(43)(44). Lgr3 mutants appear to develop similarly to dilp8 mutants and prevent effects of Dilp8 overexpression, and some evidence has been found for direct interaction between them (44; but see ref.…”
Section: Discussionmentioning
confidence: 99%
“…This homology has led to the proposal that insulin-like peptides, especially Dilp8, may function as ligands for Lgr3 in Drosophila (39). Dilp8 has been implicated in the regulation of developmental timing and growth in the larva (40,41), and Lgr3 has recently been found to be necessary for this Dilp8 function (42)(43)(44). Lgr3 mutants appear to develop similarly to dilp8 mutants and prevent effects of Dilp8 overexpression, and some evidence has been found for direct interaction between them (44; but see ref.…”
Section: Discussionmentioning
confidence: 99%
“…Lgr3 est un récepteur couplé aux protéines G (GPCR), analogue à la sous-famille des récepteurs des relaxines chez les vertébrés. L'inactivation de Lgr3 par ARN interférent (ARNi) permet de remédier au retard de développement induit par la surexpression de Dilp8 [20]. Lgr3 est pré-sent dans une sous-population de neurones dont deux seulement sont requis pour l'induction du retard déve-loppemental par Dilp8 (appelés growth coordinating Lgr3-positive neurons ou neurones GCL).…”
Section: Coordination De La Croissance Avec Le Programme Développementalunclassified
“…Lgr3 est pré-sent dans une sous-population de neurones dont deux seulement sont requis pour l'induction du retard déve-loppemental par Dilp8 (appelés growth coordinating Lgr3-positive neurons ou neurones GCL). Les neurones GCL semblent contrôler les niveaux d'ecdysone par une interaction physique avec des neurones intermédiaires à PTTH (prothoracicotropic hormone) 3 qui projettent leurs axones sur la glande en anneau, le site de production de l'ecdysone [20][21][22][23][24]. 2 Le cycle de vie de la drosophile se divise en quatre phases durant lesquelles les individus prennent des morphologies trè s diffé rentes : l'oeuf (stade embryonnaire), la larve (stade larvaire), la pupe (stade pupal) et l'imago (stade adulte).…”
Section: Coordination De La Croissance Avec Le Programme Développementalunclassified
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