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The bone marrow microenvironment of pre-B acute lymphoblastic leukemia at single-cell resolutionThe bone marrow microenvironment (BMM) plays a key role in leukemia progression, but its molecular complexity in pre-B cell acute lymphoblastic leukemia (B-ALL), the most common cancer in children, remains poorly understood. To gain further insight, we used single-cell RNA sequencing to characterize the kinetics of the murine BMM during B-ALL progression.
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Aging of preleukemic thymocytes drives CpG island hypermethylation in T-cell acute lymphoblastic leukemiaCancer cells display DNA hypermethylation at specific CpG islands in comparison to their normal healthy counterparts, but the mechanism that drives this so-called CpG island methylator phenotype (CIMP) remains poorly understood. Here, we show that CpG island methylation in human T-cell acute lymphoblastic leukemia (T-ALL) mainly occurs at promoters of Polycomb Repressor Complex 2 (PRC2) target genes that are not expressed in normal or malignant T-cells and which display a reciprocal association with H3K27me3 binding.
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Gain of chromosome 21 in hematological malignancies: lessons from studying leukemia in children with Down syndromeStructural and numerical alterations of chromosome 21 are extremely common in hematological malignancies. While the functional impact of chimeric transcripts from fused chromosome 21 genes such as TEL-AML1, AML1-ETO, or FUS-ERG have been extensively studied, the role of gain of chromosome 21 remains largely unknown.
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Constitutive Activation of RAS/MAPK Pathway Cooperates with Trisomy 21 and Is Therapeutically Exploitable in Down Syndrome B-cell LeukemiaChildren with Down syndrome (constitutive trisomy 21) that develop acute lymphoblastic leukemia (DS-ALL) have a 3-fold increased likelihood of treatment-related mortality coupled with a higher cumulative incidence of relapse, compared with other children with B-cell acute lymphoblastic leukemia (B-ALL).
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Targeting cytokine- and therapy-induced PIM1 activation in preclinical models of T-cell acute lymphoblastic leukemia and lymphomaIL7 and glucocorticoids coordinately drive aberrant activation of PIM1 and suggests that T-ALL and T-LBL patients could benefit from PIM inhibition
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Challenges posed by COVID-19 to children with cancerDevelopment of standardised guidance by national and regional authorities for reducing the risk of SARS-CoV-2 transmission to children with cancer
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A Novel Missense Mutation Affecting the N-terminal Domain of SAP Protein in X-linked Lymphoproliferative DiseaseWe have revealed a novel SH2D1A gene mutation in a patient with XLP resulting in fulminant refractory EBV-driven HLH, which is a recognized severe complication
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Outcome of Infants Younger Than 1 Year With Acute Lymphoblastic Leukemia Treated With the Interfant-06 Protocol: Results From an International Phase III Randomized StudyEarly intensification with postinduction myeloid-type chemotherapy courses did not significantly improve outcome for infant acute lymphoblastic leukemia
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Romidepsin enhances the efficacy of cytarabine in vivo, revealing HDAC inhibition as a therapeutic strategy for KMT2A-rearranged acute lymphoblastic leukemiaIn this study, we investigate the in vivo synergy between romidepsin and cytarabine
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Risk factors for symptomatic venous thromboembolism during therapy for childhood acute lymphoblastic leukemiaWe found two known risk factors in a large cohort of children treated for ALL and identified other factors associated with venous thromboembolism