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Advancing CNS tumor diagnostics with expanded DNA methylation-based classification

DNA methylation-based classification is now central to contemporary neuro-oncology, as highlighted by the World Health Organization classification of central nervous system tumors. This expansion is a result of newly identified tumor types discovered through our large online repository and global collaborations, underscoring CNS tumor heterogeneity.

Flt3L-mediated tumor cDC1 expansion enhances immunotherapy by priming stem-like CD8+ T cells in lymph nodes

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. 

IDH mutant high-grade gliomas

Gliomas are the most common type of malignant primary central nervous system (CNS) tumors, resulting in significant morbidity and mortality in children and adolescent and young adult (AYA) patients. The discovery of mutations in isocitrate dehydrogenase (IDH) genes has dramatically changed the classification and understanding of gliomas.  IDH mutant gliomas have distinct clinical, pathological, and molecular features including a favorable prognosis and response to therapy compared to their wildtype counterparts.

Deciphering IGH rearrangement complexity and detection strategies in acute lymphoblastic leukaemia

Acute lymphoblastic leukaemia is a highly heterogeneous malignancy characterised by various genomic alterations that influence disease progression and therapeutic outcomes. Gene fusions involving the immunoglobulin heavy chain gene represent a complex and diverse category.

Returning raw genomic data to research participants in a pediatric cancer precision medicine trial

In pediatric cancer precision medicine clinical trials settings, parents proactively seeking treatment and answers to causation may request return of their child's raw data and/or biospecimen. To satisfy such requests, the ZERO Childhood Cancer Program required a guidance document.

Combining CRISPR-Cas9 and TCR exchange to generate a safe and efficient cord blood-derived T cell product for pediatric relapsed AML

Hematopoietic cell transplantation (HCT) is an effective treatment for pediatric patients with high-risk, refractory, or relapsed acute myeloid leukemia (AML). However, a large proportion of transplanted patients eventually die due to relapse. To improve overall survival, we propose a combined strategy based on cord blood (CB)-HCT with the application of AML-specific T cell receptor (TCR)-engineered T cell therapy derived from the same CB graft.

Exploring Exclusive Breastfeeding and Childhood Cancer Using Linked Data

Citation: Bailey HD. Exploring Exclusive Breastfeeding and Childhood Cancer Using Linked Data. JAMA Netw Open. 2024;7(3):e243075 Keywords:

Beyond bone: the emerging role of osteoclasts in immune regulation, leukemia development and following myeloablative therapy

Osteoclasts are important regulators of bone remodeling, with an established role in maintaining skeletal homeostasis. The emergence of osteoimmunology has identified osteoclasts as key players in the immune system. In particular, osteoclasts can initiate bi-directional crosstalk mechanisms with hematopoietic stem cells and various immune cells, such as T cells, B cells and NK cells, to influence hematopoiesis and inflammatory response.

Histone methyltransferase PRDM9 promotes survival of drug-tolerant persister cells in glioblastoma

Chemotherapy often kills a large fraction of cancer cells but leaves behind a small population of drug-tolerant persister cells. These persister cells survive drug treatments through reversible, non-genetic mechanisms and cause tumour recurrence upon cessation of therapy. Here, we report a drug tolerance mechanism regulated by the germ-cell-specific H3K4 methyltransferase PRDM9. 

Comparative analysis of malignant pleural effusion and peripheral blood reveals unique T cell signatures associated with survival in mesothelioma patients

The success of cancer immunotherapies has highlighted the importance of monitoring the anti-tumour T cell response. Patients with mesothelioma frequently present with a malignant pleural effusion (MPE) that is commonly drained regularly to alleviate symptoms. As MPE contains tumour cells, T cells and cytokines, it provides a unique opportunity to sample immune events at the tumour site.