| http://purl.uniprot.org/citations/24763056 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/24763056 | http://www.w3.org/2000/01/rdf-schema#comment | "Despite intensive multimodal therapies, the overall survival rate of patients with ductal adenocarcinoma of the pancreas is still poor. The chemo- and radioresistance mechanisms of this tumor entity remain to be determined in order to develop novel treatment strategies. In cancer, endocytosis and membrane trafficking proteins are known to be utilized and they also critically regulate essential cell functions like survival and proliferation. On the basis of these data, we evaluated the role of the endosomal proteins adaptor proteins containing pleckstrin homology domain, phosphotyrosine binding domain and a leucine zipper motif (APPL)1 and 2 for the radioresistance of pancreatic carcinoma cells. Here, we show that APPL2 expression in pancreatic cancer cells is upregulated after irradiation and that depletion of APPL proteins by small interfering RNA (siRNA) significantly reduced radiation survival in parallel to impairing DNA double strand break (DSB) repair. In addition, APPL knockdown diminished radiogenic hyperphosphorylation of ataxia telangiectasia mutated (ATM). Activated ATM and APPL1 were also shown to interact after irradiation, suggesting that APPL has a more direct role in the phosphorylation of ATM. Double targeting of APPL proteins and ATM caused similar radiosensitization and concomitant DSB repair perturbation to that observed after depletion of single proteins, indicating that ATM is the central modulator of APPL-mediated effects on radiosensitivity and DNA repair. These data strongly suggest that endosomal APPL proteins contribute to the DNA damage response. Whether targeting of APPL proteins is beneficial for the survival of patients with pancreatic adenocarcinoma remains to be elucidated."xsd:string |
| http://purl.uniprot.org/citations/24763056 | http://purl.org/dc/terms/identifier | "doi:10.1038/cddis.2014.167"xsd:string |
| http://purl.uniprot.org/citations/24763056 | http://purl.uniprot.org/core/author | "Hennig J."xsd:string |
| http://purl.uniprot.org/citations/24763056 | http://purl.uniprot.org/core/author | "Cordes N."xsd:string |
| http://purl.uniprot.org/citations/24763056 | http://purl.uniprot.org/core/author | "Eke I."xsd:string |
| http://purl.uniprot.org/citations/24763056 | http://purl.uniprot.org/core/author | "McShane M.P."xsd:string |
| http://purl.uniprot.org/citations/24763056 | http://purl.uniprot.org/core/date | "2014"xsd:gYear |
| http://purl.uniprot.org/citations/24763056 | http://purl.uniprot.org/core/name | "Cell Death Dis"xsd:string |
| http://purl.uniprot.org/citations/24763056 | http://purl.uniprot.org/core/pages | "e1199"xsd:string |
| http://purl.uniprot.org/citations/24763056 | http://purl.uniprot.org/core/title | "APPL proteins modulate DNA repair and radiation survival of pancreatic carcinoma cells by regulating ATM."xsd:string |
| http://purl.uniprot.org/citations/24763056 | http://purl.uniprot.org/core/volume | "5"xsd:string |
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| http://purl.uniprot.org/uniprot/#_B4DQX8-mappedCitation-24763056 | http://www.w3.org/1999/02/22-rdf-syntax-ns#object | http://purl.uniprot.org/citations/24763056 |
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