Project description:Patient-derived cells (PDC) recapitulate the characteristics of lung cancer and its therapeutic response. We collected cancer cells of patients to receive various chemotherapy and performed integrative analysis for pharmachogenomics.
Project description:Patient-derived cells (PDC) recapitulate the characteristics of lung cancer and its therapeutic response. We collected cancer cells of patients to receive various chemotherapy and performed integrative analysis for pharmachogenomics.
Project description:Although acute lymphoblastic leukemia (ALL) is the most prevalent childhood cancer, there is limited understanding of the contribution of inherited genetic variation on inter-individual differences in chemotherapy response, and defining genetic factors impacting therapy failure can help better predict response and identify drug resistance mechanisms. Using inherited noncoding variants associated with chemotherapeutic drug resistance and/or treatment outcome, we mapped these variants to ALL cis-regulatory elements and investigated their gene regulatory potential and genomic connectivity using massively parallel reporter assays and promoter capture Hi-C, respectively. We identified 53 variants with reproducible allele-specific effects on transcription and high-confidence gene targets. Subsequent functional interrogation of the top variant (rs1247117) determined that it disrupted a PU.1 consensus motif and PU.1 binding affinity. Importantly, deletion of the genomic interval containing rs1247117 sensitized ALL cells to vincristine. Together, these data demonstrate that noncoding regulatory variation associated with diverse pharmacological traits harbor significant effects on allele-specific transcriptional activity and impact sensitivity to chemotherapeutic agents in ALL.
Project description:Although acute lymphoblastic leukemia (ALL) is the most prevalent childhood cancer, there is limited understanding of the contribution of inherited genetic variation on inter-individual differences in chemotherapy response, and defining genetic factors impacting therapy failure can help better predict response and identify drug resistance mechanisms. Using inherited noncoding variants associated with chemotherapeutic drug resistance and/or treatment outcome, we mapped these variants to ALL cis-regulatory elements and investigated their gene regulatory potential and genomic connectivity using massively parallel reporter assays and promoter capture Hi-C, respectively. We identified 53 variants with reproducible allele-specific effects on transcription and high-confidence gene targets. Subsequent functional interrogation of the top variant (rs1247117) determined that it disrupted a PU.1 consensus motif and PU.1 binding affinity. Importantly, deletion of the genomic interval containing rs1247117 sensitized ALL cells to vincristine. Together, these data demonstrate that noncoding regulatory variation associated with diverse pharmacological traits harbor significant effects on allele-specific transcriptional activity and impact sensitivity to chemotherapeutic agents in ALL.
Project description:Although acute lymphoblastic leukemia (ALL) is the most prevalent childhood cancer, there is limited understanding of the contribution of inherited genetic variation on inter-individual differences in chemotherapy response, and defining genetic factors impacting therapy failure can help better predict response and identify drug resistance mechanisms. Using inherited noncoding variants associated with chemotherapeutic drug resistance and/or treatment outcome, we mapped these variants to ALL cis-regulatory elements and investigated their gene regulatory potential and genomic connectivity using massively parallel reporter assays and promoter capture Hi-C, respectively. We identified 53 variants with reproducible allele-specific effects on transcription and high-confidence gene targets. Subsequent functional interrogation of the top variant (rs1247117) determined that it disrupted a PU.1 consensus motif and PU.1 binding affinity. Importantly, deletion of the genomic interval containing rs1247117 sensitized ALL cells to vincristine. Together, these data demonstrate that noncoding regulatory variation associated with diverse pharmacological traits harbor significant effects on allele-specific transcriptional activity and impact sensitivity to chemotherapeutic agents in ALL.
Project description:Background: The addition of the anti-HER2 antibody pertuzumab to trastuzumab/chemotherapy treatment in HER2+ breast cancer significantly improves clinical outcome. Concomitantly, the drug-antibody conjugate T-DM1 (trastuzumab-emantasine) has demonstrated efficacy, at least equal, to the combination of trastuzumab/chemotherapy. Scientific, economic and health challenges emerge from the clinical use of these novel anti-HER2 antibodies, aimed to identify new resistance mechanisms and to select the target breast cancer population. Objectives: (1) To identify primary resistance mechanisms to anti-HER2 antibodies trastuzumab, pertuzumab, and to the combined trastuzumab/pertuzumab or pertuzumab/T-DM1 therapy, (2) To identify acquired resistance mechanisms to anti-HER2 antibodies trastuzumab, pertuzumab, and to the combined trastuzumab/pertuzumab or pertuzumab/T-DM1 therapy, (3) To develop new combinations of anti-HER2 antibodies with other targeted therapies.
Project description:Glioblastoma (GBM) is an immunologically cold brain tumor with poor outcome. We report an interim analysis of a first-in-human dose escalation study investigating Temferon, an advanced therapy medicinal product composed of autologous hematopoietic stem/progenitor cells engineered to express alpha-2 interferon selectively in the myeloid progeny recruited into the GBM tumor microenvironment (TME). Twenty-four newly diagnosed GBM patients were treated following conformal focal radiotherapy and non myeloablative conditioning chemotherapy. The primary objective was to assess safety and tolerability over the first 90 days, secondary objectives were long-term safety, definition of dose and conditioning regimen, and signs of activity. Temferon met the primary outcome of safety, with a toxicity profile consistent with autologous stem cell transplantation. No dose limiting toxicities were recorded up to 4x10^6 Temferon cells/kg, and conditioning with busulfan was selected for further development. Median overall- and progression-free survival from infusion (diagnosis) was 13.2 (16.7) and 6.2 (8.1) months, respectively. Most patients maintained good performance status and quality of life. Genetically engineered cells were detected long-term in the bone marrow and the blood, where minimal amounts of IFN-a were measured. Exploratory analyses on post-treatment brain tissue samples showed the presence of transgenic progeny and immune reprogramming of the TME towards enrichment for inflammatory macrophages and CD8 effector T-cells (EudraCT 2018-001404-11).
Project description:Although acute lymphoblastic leukemia (ALL) is the most prevalent childhood cancer, there is limited understanding of the contribution of inherited genetic variation on inter-individual differences in chemotherapy response, and defining genetic factors impacting therapy failure can help better predict response and identify drug resistance mechanisms. Using inherited noncoding variants associated with chemotherapeutic drug resistance and/or treatment outcome, we mapped these variants to ALL cis-regulatory elements and investigated their gene regulatory potential and genomic connectivity using massively parallel reporter assays and promoter capture Hi-C, respectively. We identified 53 variants with reproducible allele-specific effects on transcription and high-confidence gene targets. Subsequent functional interrogation of the top variant (rs1247117) determined that it disrupted a PU.1 consensus motif and PU.1 binding affinity. Importantly, deletion of the genomic interval containing rs1247117 sensitized ALL cells to vincristine. Together, these data demonstrate that noncoding regulatory variation associated with diverse pharmacological traits harbor significant effects on allele-specific transcriptional activity and impact sensitivity to chemotherapeutic agents in ALL.