2009
DOI: 10.1038/leu.2009.230
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TNF-α-converting enzyme (TACE/ADAM17)-dependent loss of CD30 induced by proteasome inhibition through reactive oxygen species

Abstract: Combinations with proteasome inhibitors are currently being investigated to improve the therapy of hematological malignancies. We previously found that proteasome inhibition by bortezomib failed to sensitize anti-CD30 antibody (Ab)-based lymphoma cell killing. In this study, we demonstrate in L540 Hodgkin's lymphoma cells that proteasome inhibition not only communicates apoptosis but also more rapidly causes a loss of CD30 antigen from cell membrane and a simultaneous release of soluble CD30, a targeting compe… Show more

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Cited by 27 publications
(15 citation statements)
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References 28 publications
(31 reference statements)
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“…These discrepancies may depend on the different cellular systems and/or experimental conditions used. Our evidence for ROS involvement in ADAM10 upregulation and MICB shedding are in line with the notion that conditions causing cellular stress, including ionizing radiation, chemotherapeutic agents, or ROS, can lead to increased metalloproteinase-mediated release of cell surface molecules (49)(50)(51) and suggest that stress stimuli promote the proteolytic process by upregulating metalloproteinase expression and activity. We also are the first to describe, to our knowledge, that genotoxic stress-induced upregulation of ADAM10 expression and sMICB secretion are primarily associated with senescent cells.…”
Section: Discussionsupporting
confidence: 70%
“…These discrepancies may depend on the different cellular systems and/or experimental conditions used. Our evidence for ROS involvement in ADAM10 upregulation and MICB shedding are in line with the notion that conditions causing cellular stress, including ionizing radiation, chemotherapeutic agents, or ROS, can lead to increased metalloproteinase-mediated release of cell surface molecules (49)(50)(51) and suggest that stress stimuli promote the proteolytic process by upregulating metalloproteinase expression and activity. We also are the first to describe, to our knowledge, that genotoxic stress-induced upregulation of ADAM10 expression and sMICB secretion are primarily associated with senescent cells.…”
Section: Discussionsupporting
confidence: 70%
“…Although blocking ADAM17 could simultaneously shut down multiple pathogenic pathways and has been proposed for treating chronic kidney diseases not related to LN (15)(16)(17), there are substantial concerns about therapeutically targeting ADAM17, mainly because ADAM17 has an essential role in protecting the skin and intestinal barrier through activating the EGFR pathway (18,19). Indeed, mice lacking Adam17 die at birth due to defects in EGFR signaling, and individuals with ADAM17 mutation or those treated with EGFR inhibitors display skin and intestinal inflammation (20)(21)(22).…”
Section: Introductionmentioning
confidence: 99%
“…In addition, the proteasomal inhibitor MG132 increased not only HIF1a and ATF4, but also ADAM17 levels (data not shown). In support, the proteasome inhibitor bortezomib increased ADAM17 shedding activity (Vahdat et al, 2010). Thus, one might speculate that under conditions associated with proteasomal inhibition, ADAM17 levels and processing may be increased.…”
Section: Discussionmentioning
confidence: 99%