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Sébastien Malinge PhD Laboratory Head, Translational Genomics in Leukaemia, Senior Research Fellow (University of Western Australia), Adjunct Senior
The Translational Genomics in Leukaemia team is focused on identifying the causes of leukaemia, with the goal of developing new targeted treatments to improve quality of care and long-term survival for all children with leukaemia.
Acute erythroleukemia (AEL or acute myeloid leukemia [AML]-M6) is a rare but aggressive hematologic malignancy. Previous studies showed that AEL leukemic cells often carry complex karyotypes and mutations in known AML-associated oncogenes.
Transcription factors known to induce the epithelial-to-mesenchymal transition (EMT) (such as ZEB1/2 [zinc finger E-box binding homeobox 1/2], SNAI1/2/3, and TWIST1/2) have been undoubtedly implicated in tumorigenesis, cancer progression, metastasis, and chemoresistance in solid tumors; however, their role in normal and malignant hematopoiesis has been underappreciated for many years.
Here we report that CHAF1B is required for normal hematopoiesis while its overexpression promotes leukemia
Immune checkpoint blockade (ICB) evokes antitumor immunity through the reinvigoration of T cell responses. T cell differentiation status controls response, with less differentiated cells having an enhanced capacity to proliferate after ICB. Given that conventional type 1 dendritic cells (cDC1) maintain precursor exhausted T cells (TPEX), we hypothesized that expansion of cDC1s with Flt3L could enhance responses to ICB.
Despite significant advances, outcomes for children with Down syndrome (DS, trisomy 21) who develop acute lymphoblastic leukemia remain poor. Reports of large DS-ALL cohorts have shown that children with DS have inferior event-free survival and overall survival compared to children without DS.
There are few options for patients with relapse/refractory B-cell acute lymphoblastic leukemia, thus this is a major area of unmet medical need. Here, we reveal that inclusion of a poison exon in RBM39, which could be induced both by CDK9 or CDK9 independent CMGC (cyclin-dependent kinases, mitogen-activated protein kinases, glycogen synthase kinases, CDC-like kinases) kinase inhibition, is recognized by the nonsense-mediated mRNA decay pathway for degradation.
The efficacy of chimeric antigen receptor (CAR) T cell therapy in solid tumours is limited by immunosuppression and antigen heterogeneity. To overcome these barriers, 'armoured' CAR T cells, which secrete proinflammatory cytokines, have been developed. However, their clinical application has been limited because of toxicity related to peripheral expression of the armouring transgene.
Citation: Sek K, Chen AXY, Cole T, Armitage JD, Tong J, ……… Waithman J, Parish IA, et al. Tumor site-directed A1R expression enhances CAR T cell