PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 27556362-0 2016 Low-dose Actinomycin-D treatment re-establishes the tumoursuppressive function of P53 in RELA-positive ependymoma. Dactinomycin 9-22 tumor protein p53 Homo sapiens 82-85 27556362-6 2016 Among the p53-positive ependymomas, the vast majority exhibited a RELA fusion leading to the hypothesis that p53 inactivation might be linked to RELA positivity.In order to assess the potential of p53 reactivation through MDM2 inhibition in ependymoma, we evaluated the effects of Actinomycin-D and Nutlin-3 treatment in two preclinical ependymoma models representing the high-risk subtypes PF-EPN-A and ST-EPN-RELA. Dactinomycin 281-294 tumor protein p53 Homo sapiens 109-112 27556362-6 2016 Among the p53-positive ependymomas, the vast majority exhibited a RELA fusion leading to the hypothesis that p53 inactivation might be linked to RELA positivity.In order to assess the potential of p53 reactivation through MDM2 inhibition in ependymoma, we evaluated the effects of Actinomycin-D and Nutlin-3 treatment in two preclinical ependymoma models representing the high-risk subtypes PF-EPN-A and ST-EPN-RELA. Dactinomycin 281-294 tumor protein p53 Homo sapiens 109-112 27556362-9 2016 At the protein level, we validated the Actinomycin-D induced upregulation of PUMA, and of p53 interaction partners MDM2 and p21. Dactinomycin 39-52 tumor protein p53 Homo sapiens 90-93 27556362-11 2016 Thus, Actinomycin-D could constitute a promising therapeutic option for ST-EPN-RELA ependymoma patients, whose tumours frequently exhibit p53 inactivation. Dactinomycin 6-19 tumor protein p53 Homo sapiens 138-141