Soluble T cell immunoglobulin and mucin domain (TIM)-1 and -4 generated by A Disintegrin And Metalloprotease (ADAM)-10 and -17 bind to phosphatidylserine
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Soluble T cell immunoglobulin and mucin domain (TIM)-1 and -4 generated by A Disintegrin And Metalloprotease (ADAM)-10 and -17 bind to phosphatidylserine. / Schweigert, Olga; Dewitz, Christin; Möller-Hackbarth, Katja; Trad, Ahmad; Garbers, Christoph; Rose-John, Stefan; Scheller, Jürgen.
In: Biochim Biophys Acta, Vol. 1843, No. 2, 02.2014, p. 275-287.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - Soluble T cell immunoglobulin and mucin domain (TIM)-1 and -4 generated by A Disintegrin And Metalloprotease (ADAM)-10 and -17 bind to phosphatidylserine
AU - Schweigert, Olga
AU - Dewitz, Christin
AU - Möller-Hackbarth, Katja
AU - Trad, Ahmad
AU - Garbers, Christoph
AU - Rose-John, Stefan
AU - Scheller, Jürgen
N1 - Copyright © 2013 Elsevier B.V. All rights reserved.
PY - 2014/2
Y1 - 2014/2
N2 - T cell immunoglobulin and mucin domain 1 and 4 (TIM-1 and -4) proteins serve as phosphatidylserine receptors to engulf apoptotic cells. Here we show that human TIM-1 and TIM-4 proteins are targets of A Disintegrin And Metalloprotease (ADAM)-mediated ectodomain shedding resulting in soluble forms of TIM-1 and TIM-4. We identified ADAM10 and ADAM17 as major sheddases of TIM-1 and TIM-4 as shown by protease-specific inhibitors, the ADAM10 prodomain, siRNA and ADAM10/ADAM17 deficient murine embryonic fibroblasts (MEFs). TIM-1 and TIM-4 lacking the intracellular domain were efficiently cleaved after ionomycin- and PMA-treatment, indicating that the intracellular domain was not necessary for ectodomain shedding. Soluble TIM-1 and -4 were able to bind to phosphatidylserine, suggesting that soluble TIM-1 and -4 might act as negative regulators of cellular TIM-1 and -4. In summary, we describe TIM-1 and TIM-4 as novel targets for ADAM10- and ADAM17-mediated ectodomain shedding.
AB - T cell immunoglobulin and mucin domain 1 and 4 (TIM-1 and -4) proteins serve as phosphatidylserine receptors to engulf apoptotic cells. Here we show that human TIM-1 and TIM-4 proteins are targets of A Disintegrin And Metalloprotease (ADAM)-mediated ectodomain shedding resulting in soluble forms of TIM-1 and TIM-4. We identified ADAM10 and ADAM17 as major sheddases of TIM-1 and TIM-4 as shown by protease-specific inhibitors, the ADAM10 prodomain, siRNA and ADAM10/ADAM17 deficient murine embryonic fibroblasts (MEFs). TIM-1 and TIM-4 lacking the intracellular domain were efficiently cleaved after ionomycin- and PMA-treatment, indicating that the intracellular domain was not necessary for ectodomain shedding. Soluble TIM-1 and -4 were able to bind to phosphatidylserine, suggesting that soluble TIM-1 and -4 might act as negative regulators of cellular TIM-1 and -4. In summary, we describe TIM-1 and TIM-4 as novel targets for ADAM10- and ADAM17-mediated ectodomain shedding.
KW - ADAM Proteins/metabolism
KW - ADAM10 Protein
KW - ADAM17 Protein
KW - Amino Acid Sequence
KW - Amino Acids/metabolism
KW - Amyloid Precursor Protein Secretases/metabolism
KW - Animals
KW - Cell Differentiation/drug effects
KW - Cell Membrane/drug effects
KW - HEK293 Cells
KW - Hepatitis A Virus Cellular Receptor 1
KW - Humans
KW - Ionomycin/pharmacology
KW - Membrane Glycoproteins/chemistry
KW - Membrane Proteins/chemistry
KW - Mice
KW - Molecular Sequence Data
KW - Phosphatidylserines/metabolism
KW - Protein Binding/drug effects
KW - Protein Structure, Tertiary
KW - RNA, Small Interfering/metabolism
KW - Receptors, Virus/chemistry
KW - Sequence Deletion
KW - Solubility/drug effects
KW - Tetradecanoylphorbol Acetate/pharmacology
U2 - 10.1016/j.bbamcr.2013.11.014
DO - 10.1016/j.bbamcr.2013.11.014
M3 - SCORING: Journal article
C2 - 24286866
VL - 1843
SP - 275
EP - 287
JO - Biochim Biophys Acta
JF - Biochim Biophys Acta
SN - 0006-3002
IS - 2
ER -