PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 25116350-0 2014 Up-regulation of P21 inhibits TRAIL-mediated extrinsic apoptosis, contributing resistance to SAHA in acute myeloid leukemia cells. Vorinostat 93-97 H3 histone pseudogene 16 Homo sapiens 17-20 25116350-2 2014 In this study we examined the effect of altered p21 expression on the sensitivity of acute myeloid leukemia cells in response to HDAC inhibitor SAHA treatment and investigated the underlying mechanism. Vorinostat 144-148 H3 histone pseudogene 16 Homo sapiens 48-51 25116350-8 2014 Enforced expression of p21 in HL60 cells reduced sensitivity to SAHA and blocked TRAIL-mediated apoptosis. Vorinostat 64-68 H3 histone pseudogene 16 Homo sapiens 23-26 25116350-9 2014 Conversely, p21 silencing in NB4 cells enhanced SAHA-mediated apoptosis and lethality. Vorinostat 48-52 H3 histone pseudogene 16 Homo sapiens 12-15 25116350-10 2014 Finally, we found that combined treatment with SAHA and rapamycin down-regulated p21 and enhanced apoptosis in AML cells. Vorinostat 47-51 H3 histone pseudogene 16 Homo sapiens 81-84 25116350-11 2014 CONCLUSION: We conclude that up-regulated p21 expression mediates resistance to SAHA via inhibition of TRAIL apoptotic pathway. Vorinostat 80-84 H3 histone pseudogene 16 Homo sapiens 42-45 25116350-12 2014 P21 may serve as a candidate biomarker to predict responsiveness or resistance to SAHA-based therapy in AML patients. Vorinostat 82-86 H3 histone pseudogene 16 Homo sapiens 0-3 25116350-13 2014 In addition, rapamycin may be an effective agent to override p21-mediated resistance to SAHA in AML patients. Vorinostat 88-92 H3 histone pseudogene 16 Homo sapiens 61-64