RRC ID 351
Author Adachi-Yamada T, Harumoto T, Sakurai K, Ueda R, Saigo K, O'Connor MB, Nakato H.
Title Wing-to-Leg homeosis by spineless causes apoptosis regulated by Fish-lips, a novel leucine-rich repeat transmembrane protein.
Journal Mol. Cell. Biol.
Abstract Growth, patterning, and apoptosis are mutually interactive during development. For example, cells that select an abnormal fate in a developing field are frequently removed by apoptosis. An important issue in this process that needs to be resolved is the mechanism used by cells to discern their correct fate from an abnormal fate. In order to examine this issue, we developed an animal model that expresses the dioxin receptor homolog Spineless (Ss) ectopically in the Drosophila wing. The presence of mosaic clones ectopically expressing ss results in a local transformation of organ identity, homeosis, from wing into a leg or antenna. The cells with misspecified fates subsequently activate c-Jun N-terminal kinase to undergo apoptosis in an autonomous or nonautonomous manner depending on their position within the wing, suggesting that a cell-cell interaction is, at least in some cases, involved in the detection of misspecified cells. Similar position dependence is commonly observed when various homeotic genes controlling the body segments are ectopically expressed. The autonomous and nonautonomous apoptosis caused by ss is regulated by a novel leucine-rich repeat family transmembrane protein, Fish-lips (Fili) that interacts with surrounding normal cells. These data support a mechanism in which the lack of some membrane proteins helps to recognize the presence of different cell types and direct these cells to an apoptotic fate in order to exclude them from the normal developing field.
Volume 25(8)
Pages 3140-50
Published 2005-4
DOI 10.1128/MCB.25.8.3140-3150.2005
PII 25/8/3140
PMID 15798200
PMC PMC1069588
MeSH Amino Acid Motifs Amino Acid Sequence Animals Apoptosis / genetics Apoptosis / physiology* Body Patterning / genetics Body Patterning / physiology* Drosophila Proteins / genetics* Drosophila Proteins / metabolism* Drosophila Proteins / physiology* Drosophila melanogaster / genetics Drosophila melanogaster / growth & development* Drosophila melanogaster / physiology Extremities / growth & development Gene Expression Membrane Proteins / genetics* Membrane Proteins / physiology* Molecular Sequence Data Mutation / genetics Protein Structure, Tertiary Proteins / genetics Proteins / physiology RNA, Messenger / analysis RNA, Messenger / metabolism Receptors, Aryl Hydrocarbon / genetics Receptors, Aryl Hydrocarbon / metabolism* Wings, Animal / growth & development
IF 3.813
Times Cited 16
Drosophila 11987R-1 11987R-3 DGRC#109636