Project description:we demonstrate that the WEE1 inhibitor AZD1775 triggers endoplasmic reticulum (ER) stress and activates the PERK and IRE1α branches of the unfolded protein response (UPR) in TP53 mutant HGSOC cells. Upon AZD1775 treatment, PERK facilitates apoptotic signaling in these cells via activating CHOP, whereas IRE1α-induced spliced XBP1 (XBP1s) confers survival in response to WEE1 inhibition. Our data uncover an important dual role of UPR in TP53 mutant HGSOC cells in response to AZD1775, where additional inhibition of IRE1α-XBP1s signaling may offer synergistic efficacy.
Project description:The aim of this study was to characterize phosphoproteome in response to AZD1775 in patient derived xenografts (PDX) lines and clinical specimens in glioblastoma. Tyrosine and motif specific serine and threonine phosphorylation were measured using quantitative LC-MS/MS based on TMT labeling.
Project description:CRISPR-Cas9 genome-wide screens were performed in retinal pigment epithelial cells (RPE1) with either wild-type TP53 gene, or a TP53-null background. Results show wild-type TP53 has minimal impact on the efficiency of CRISPR dropout screens.
Project description:This study characterized the effect of WEE1 kinase inhibition using AZD1775 treatment on single-cell accessible chromatin and gene expression profile in the acute lymphoblastic leukemia cell line RS4;11 that represents the KMT2A-rearranged subtype.
Project description:This study characterized the effect of WEE1 kinase inhibition using AZD1775 treatment on single-cell gene expression profile using the 10x Genomics protocol in the acute lymphoblastic leukemia cells
Project description:This study characterized the effect of WEE1 kinase inhibition using AZD1775 treatment on single-cell gene expression profile using the 10x Genomics protocol in the acute lymphoblastic leukemia cell lines RS4;11 (KMT2A-rearranged subtype) and Nalm6 (other subtype).
Project description:This study characterized the effect of WEE1 kinase inhibition using AZD1775 treatment on single-cell accessible chromatin and gene expression profile using the 10x Genomics multiome protocol (ATAC + Gene Expression Assay) in the acute lymphoblastic leukemia cell line RS4;11 that represents the KMT2A-rearranged subtype.