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FLIP (human) monoclonal antibody

RRID:AB_2713915

Antibody ID

AB_2713915

Target Antigen

FLIP human

Proper Citation

(Enzo Life Sciences Cat# ALX-804-961-0100, RRID:AB_2713915)

Clonality

monoclonal antibody

Clone ID

7F10

Host Organism

mouse

Vendor

Enzo Life Sciences

Cat Num

ALX-804-961-0100

Publications that use this research resource

Loss of functional BAP1 augments sensitivity to TRAIL in cancer cells.

  • Kolluri KK
  • Elife
  • 2018 Jan 18

Literature context:


Abstract:

Malignant mesothelioma (MM) is poorly responsive to systemic cytotoxic chemotherapy and invariably fatal. Here we describe a screen of 94 drugs in 15 exome-sequenced MM lines and the discovery of a subset defined by loss of function of the nuclear deubiquitinase BRCA associated protein-1 (BAP1) that demonstrate heightened sensitivity to TRAIL (tumour necrosis factor-related apoptosis-inducing ligand). This association is observed across human early passage MM cultures, mouse xenografts and human tumour explants. We demonstrate that BAP1 deubiquitinase activity and its association with ASXL1 to form the Polycomb repressive deubiquitinase complex (PR-DUB) impacts TRAIL sensitivity implicating transcriptional modulation as an underlying mechanism. Death receptor agonists are well-tolerated anti-cancer agents demonstrating limited therapeutic benefit in trials without a targeting biomarker. We identify BAP1 loss-of-function mutations, which are frequent in MM, as a potential genomic stratification tool for TRAIL sensitivity with immediate and actionable therapeutic implications.

Funding information:
  • Cancer Research UK - A17341()
  • NINDS NIH HHS - R01NS043915(United States)
  • Wellcome - WT097452MA()
  • Wellcome Trust - 106555/Z/14/Z()
  • Wellcome Trust - WT107963AIA()

Caspase-8 Acts in a Non-enzymatic Role as a Scaffold for Assembly of a Pro-inflammatory "FADDosome" Complex upon TRAIL Stimulation.

  • Henry CM
  • Mol. Cell
  • 2017 Feb 16

Literature context:


Abstract:

TRAIL is a potent inducer of apoptosis and has been studied almost exclusively in this context. However, TRAIL can also induce NFκB-dependent expression of multiple pro-inflammatory cytokines and chemokines. Surprisingly, whereas inhibition of caspase activity blocked TRAIL-induced apoptosis, but not cytokine production, knock down or deletion of caspase-8 suppressed both outcomes, suggesting that caspase-8 participates in TRAIL-induced inflammatory signaling in a scaffold role. Consistent with this, introduction of a catalytically inactive caspase-8 mutant into CASP-8 null cells restored TRAIL-induced cytokine production, but not cell death. Furthermore, affinity precipitation of the native TRAIL receptor complex revealed that pro-caspase-8 was required for recruitment of RIPK1, via FADD, to promote NFκB activation and pro-inflammatory cytokine production downstream. Thus, caspase-8 can serve in two distinct roles in response to TRAIL receptor engagement, as a scaffold for assembly of a Caspase-8-FADD-RIPK1 "FADDosome" complex, leading to NFκB-dependent inflammation, or as a protease that promotes apoptosis.

Funding information:
  • Worldwide Cancer Research - 14-0323()