PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 25490093-0 2014 p53-dependent activation of microRNA-34a in response to etoposide-induced DNA damage in osteosarcoma cell lines not impaired by dominant negative p53 expression. Etoposide 56-65 tumor protein p53 Homo sapiens 0-3 25490093-3 2014 In this study we evaluated the cascade of events determined by etoposide-induced DNA damage in OS cell lines with different p53 status focusing on methylation status and expression of miR-34a that modulate tumor cell growth and cell cycle progression. Etoposide 63-72 tumor protein p53 Homo sapiens 124-127 25490093-4 2014 Wild-type p53 U2-OS cells and U2-OS cells expressing dominant-negative form of p53 (U2- OS175) were more sensitive to etoposide than p53-deficient MG63 and Saos-2 cells, showing increased levels of unmethylated miR-34a, reduced expression of CDK4 and cell cycle arrest in G1 phase. Etoposide 118-127 tumor protein p53 Homo sapiens 10-13 25490093-4 2014 Wild-type p53 U2-OS cells and U2-OS cells expressing dominant-negative form of p53 (U2- OS175) were more sensitive to etoposide than p53-deficient MG63 and Saos-2 cells, showing increased levels of unmethylated miR-34a, reduced expression of CDK4 and cell cycle arrest in G1 phase. Etoposide 118-127 tumor protein p53 Homo sapiens 79-82 25490093-4 2014 Wild-type p53 U2-OS cells and U2-OS cells expressing dominant-negative form of p53 (U2- OS175) were more sensitive to etoposide than p53-deficient MG63 and Saos-2 cells, showing increased levels of unmethylated miR-34a, reduced expression of CDK4 and cell cycle arrest in G1 phase. Etoposide 118-127 tumor protein p53 Homo sapiens 79-82 25490093-6 2014 Consistently, in p53siRNA transfected U2-OS cells we observed loss of miR-34a induction after etoposide exposure associated with a partial gain of gene methylation and cell cycle progress towards G2/M phase. Etoposide 94-103 tumor protein p53 Homo sapiens 17-20 25490093-8 2014 In conclusion, cell response to etoposide-induced DNA damage was not compromised in cells with dominant-negative p53 expression. Etoposide 32-41 tumor protein p53 Homo sapiens 113-116