PMID- 24505132 OWN - NLM STAT- MEDLINE DCOM- 20140409 LR - 20240508 IS - 1095-9203 (Electronic) IS - 0036-8075 (Print) IS - 0036-8075 (Linking) VI - 343 IP - 6174 DP - 2014 Feb 28 TI - Molecular editing of cellular responses by the high-affinity receptor for IgE. PG - 1021-5 LID - 10.1126/science.1246976 [doi] AB - Cellular responses elicited by cell surface receptors differ according to stimulus strength. We investigated how the high-affinity receptor for immunoglobulin E (IgE) modulates the response of mast cells to a high- or low-affinity stimulus. Both high- and low-affinity stimuli elicited similar receptor phosphorylation; however, differences were observed in receptor cluster size, mobility, distribution, and the cells' effector responses. Low-affinity stimulation increased receptor association with the Src family kinase Fgr and shifted signals from the adapter LAT1 to the related adapter LAT2. LAT1-dependent calcium signals required for mast cell degranulation were dampened, but the role of LAT2 in chemokine production was enhanced, altering immune cell recruitment at the site of inflammation. These findings uncover how receptor discrimination of stimulus strength can be interpreted as distinct in vivo outcomes. FAU - Suzuki, Ryo AU - Suzuki R AD - Laboratory of Molecular Immunogenetics, National Institute of Arthritis and Musculoskeletal and Skin Diseases, Bethesda, MD 20892, USA. FAU - Leach, Sarah AU - Leach S FAU - Liu, Wenhua AU - Liu W FAU - Ralston, Evelyn AU - Ralston E FAU - Scheffel, Jorg AU - Scheffel J FAU - Zhang, Weiguo AU - Zhang W FAU - Lowell, Clifford A AU - Lowell CA FAU - Rivera, Juan AU - Rivera J LA - eng GR - R01 AI065495/AI/NIAID NIH HHS/United States GR - R01 AI068150/AI/NIAID NIH HHS/United States GR - ZIA AR041101-20/Intramural NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Intramural DEP - 20140206 PL - United States TA - Science JT - Science (New York, N.Y.) JID - 0404511 RN - 0 (Adaptor Proteins, Signal Transducing) RN - 0 (Amino Acid Transport System y+) RN - 0 (Chemokines) RN - 0 (Dinitrophenols) RN - 0 (Fusion Regulatory Protein 1, Light Chains) RN - 0 (Lat protein, mouse) RN - 0 (Membrane Proteins) RN - 0 (Phosphoproteins) RN - 0 (Proto-Oncogene Proteins) RN - 0 (Receptors, IgE) RN - 0 (SLC7A8 protein, mouse) RN - 37341-29-0 (Immunoglobulin E) RN - EC 2.7.10.2 (proto-oncogene proteins c-fgr) RN - EC 2.7.10.2 (src-Family Kinases) SB - IM CIN - Science. 2014 Feb 28;343(6174):982-3. PMID: 24578573 MH - Adaptor Proteins, Signal Transducing/metabolism MH - Amino Acid Transport System y+/metabolism MH - Animals MH - Cattle MH - Cell Movement MH - Chemokines/metabolism MH - Dinitrophenols MH - Fusion Regulatory Protein 1, Light Chains/metabolism MH - Immunoglobulin E/*metabolism MH - Inflammation/immunology MH - Mast Cells/*immunology MH - Membrane Proteins/metabolism MH - Mice MH - Phosphoproteins/metabolism MH - Proto-Oncogene Proteins/metabolism MH - Receptors, IgE/*metabolism MH - src-Family Kinases/metabolism PMC - PMC4188507 MID - NIHMS631978 COIS- The authors declare no conflicts of interest. EDAT- 2014/02/08 06:00 MHDA- 2014/04/10 06:00 PMCR- 2015/02/28 CRDT- 2014/02/08 06:00 PHST- 2014/02/08 06:00 [entrez] PHST- 2014/02/08 06:00 [pubmed] PHST- 2014/04/10 06:00 [medline] PHST- 2015/02/28 00:00 [pmc-release] AID - science.1246976 [pii] AID - 10.1126/science.1246976 [doi] PST - ppublish SO - Science. 2014 Feb 28;343(6174):1021-5. doi: 10.1126/science.1246976. Epub 2014 Feb 6.