Project description:We performed RNA sequencing analysis on fresh-frozen biopsies of metastatic triple-negative breast cancer prior to undergoing therapy with ruxolitinib, or after 2 cycles of therapy in a subset of patients.
Project description:Symptomatic previously untreated chronic lymphocytic leukemia patients were treated with the janus kinase (JAK)-inhibitor ruxolitinib (clinicaltrials.gov, number NCT02015208). CLL cells from 6 of the patients were purified prior to commencing ruxolitinib and again 4 or 8 weeks after treatment and analyzed by RNAseq. Ruxolitinib induced a stereotyped response in all patients consisting of a rapid decrease in palpable lymphadenopathy accompanied by increased lymphocytosis and blood lactate dehydrogenase. This response was associated with evidence of inhibited JAK-signaling in CLL cells but activation of other oncogenic pathways.
Project description:HCC1143, HCC70, HCC38, and SUM159PT cells were treated for 4 or 24 hrs with 1uM ruxolitinib. Control cells were treated for 24 hrs with DMSO (0.1%). The purpose was to determine changes in gene expresison patterns following inhibition of JAK1/2 in the cells. Three independent experiments were conducted for three biological replicates at each time point, for each cell line
Project description:Background and methods: Ruxolitinib (RUX), a Jak1/2 inhibitor, has been reported to attenuate murine bone marrow failure recently. Its potential toxocicty of anemia and thrombocytopenia in human remains a concern. We tested the toxicity of ruxolitinib on hematopoiesis in normal mice by feeding the mice with RUX chow for 3 months. Bone marrow Lin-CD117+ cells were sorted from treated or untreated mice. RNA-Seq and analysis was performed using SMART-Seq mRNA LP Kit (Takara) and the Illumina Novaseq6000, according to the Institute's protocols. Results: Ruxolitinib reduced RBC and lymphocytes, but did not affect NEU and PLT in normal mice. RNA sequencing demonstrated that HSPCs from RUX-treated and untreated mice had overlapped transcriptome distribution in multiple dimentional scalling plot, indicating overall similarity at molecular level. Conclusion: Our results demonstrate that ruxolitinib has minimal toxicity on hematopoiesis in normal mice.
Project description:HCC1143, HCC70, HCC38, and SUM159PT cells were treated for 4 or 24 hrs with 1uM ruxolitinib. Control cells were treated for 24 hrs with DMSO (0.1%). The purpose was to determine changes in gene expresison patterns following inhibition of JAK1/2 in the cells.
Project description:We report the effect of rexolitinib on neutrophil function, by extracting mouse bone marrow neutrophils, and after treatment with Ruxolitinib and vehicle, extracting neutrophil RNA from each group for RNA-seq. Finally, we show that Ruxolitinib produces functional effects on neutrophils mainly through inflammatory signaling pathways, amplifying the immune effects of neutrophils in an inflammatory environment and accelerating neutrophil death.