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- W2103110147 endingPage "2014" @default.
- W2103110147 startingPage "2003" @default.
- W2103110147 abstract "Multicellular organisms use programmed cell death to eliminate unwanted or potentially harmful cells. Improper cell corpse removal can lead to autoimmune diseases. The development of interventional therapies that increase engulfment activity could represent an attractive approach to treat such diseases. Here, we describe mtm-1, the Caenorhabditis elegans homolog of human myotubularin 1, as a potential negative regulator of apoptotic cell corpse clearance. Loss of mtm-1 function leads to substantially reduced numbers of persistent cell corpses in engulfment mutants, which is a result of a restoration of engulfment function rather than of impaired or delayed programmed cell death. Epistatic analyses place mtm-1 upstream of the ternary GEF complex, which consists of ced-2, ced-5 and ced-12, and parallel to mig-2. Over-activation of engulfment results in the removal of viable cells that have been brought to the verge of death under limiting caspase activity. In addition, mtm-1 also promotes phagosome maturation in the hermaphrodite gonad, potentially through CED-1 receptor recycling. Finally, we show that the CED-12 PH domain can bind to PtdIns(3,5)P2 (one target of MTM-1 phosphatase activity), suggesting that MTM-1 might regulate CED-12 recruitment to the plasma membrane." @default.
- W2103110147 created "2016-06-24" @default.
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- W2103110147 date "2011-05-15" @default.
- W2103110147 modified "2023-09-30" @default.
- W2103110147 title "The phosphoinositide phosphatase MTM-1 regulates apoptotic cell corpse clearance through CED-5–CED-12 in <i>C. elegans</i>" @default.
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- W2103110147 doi "https://doi.org/10.1242/dev.060012" @default.
- W2103110147 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/21490059" @default.
- W2103110147 hasPublicationYear "2011" @default.
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