6533b7d8fe1ef96bd1269af1

RESEARCH PRODUCT

Fold formation at the compartment boundary of Drosophila wing requires Yki signaling to suppress JNK dependent apoptosis

Dan WangGert O. PflugfelderJie SunSuning LiuJie Shen

subject

0301 basic medicineProgrammed cell deathanimal structuresMAP Kinase Kinase 4CellMutantApoptosisBiologyArticle03 medical and health sciences0302 clinical medicinemedicineAnimalsDrosophila ProteinsWings AnimalBody PatterningMultidisciplinaryWingKinaseGene Expression Regulation DevelopmentalNuclear ProteinsYAP-Signaling ProteinsAnatomyCell biologyImaginal discDrosophila melanogaster030104 developmental biologymedicine.anatomical_structureImaginal DiscsApoptosisTrans-ActivatorsSignal transduction030217 neurology & neurosurgerySignal Transduction

description

AbstractCompartment boundaries prevent cell populations of different lineage from intermingling. In many cases, compartment boundaries are associated with morphological folds. However, in the Drosophila wing imaginal disc, fold formation at the anterior/posterior (A/P) compartment boundary is suppressed, probably as a prerequisite for the formation of a flat wing surface. Fold suppression depends on optomotor-blind (omb). Omb mutant animals develop a deep apical fold at the A/P boundary of the larval wing disc and an A/P cleft in the adult wing. A/P fold formation is controlled by different signaling pathways. Jun N-terminal kinase (JNK) and Yorkie (Yki) signaling are activated in cells along the fold and are necessary for the A/P fold to develop. While JNK promotes cell shape changes and cell death, Yki target genes are required to antagonize apoptosis, explaining why both pathways need to be active for the formation of a stable fold.

yearjournalcountryeditionlanguage
2016-11-29Scientific Reports
https://doi.org/10.1038/srep38003