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An in-depth investigation of gene regulation and cell populations at sites of fetal blood-cell production provides clues as to why children with Down’s syndrome are predisposed to developing leukaemia.
Many mechanisms underlying an effective immunotherapy-induced antitumour response are transient and critically time dependent. This is equally true for several immunological events in the tumour microenvironment induced by other cancer treatments. Immune checkpoint therapy (ICT) has proven to be very effective in the treatment of some cancers, but unfortunately, with many cancer types, most patients do not experience a benefit.
T cells engineered to express chimeric-antigen receptors (CAR-T cells) can effectively control relapsed and refractory haematological malignancies in the clinic. However, the successes of CAR-T cell therapy have not been recapitulated in solid tumours due to a range of barriers such as immunosuppression, poor infiltration, and tumour heterogeneity.
Citation: Bailey HD. Exploring Exclusive Breastfeeding and Childhood Cancer Using Linked Data. JAMA Netw Open. 2024;7(3):e243075 Keywords:
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.
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.
Acute lymphoblastic leukaemia (ALL) is the most common paediatric malignancy and remains one of the most common causes of cancer-related death in children and adolescents. It is characterised by the proliferation of immature lymphoid cells capable of infiltrating bone marrow, blood and extramedullary sites. Five-year overall survival rates exceed 90% with current multidrug chemotherapeutic regimens. This manuscript reviews the abdominal imaging features of leukaemic infiltration in children with ALL at the time of initial diagnosis and following relapse.
CD8+ T cells are an important weapon in the therapeutic armamentarium against cancer. While CD8+CD103+ T cells with a tissue-resident memory T (TRM) cell phenotype are associated with favorable prognoses, the tumor microenvironment also contains dysfunctional exhausted T (TEX) cells that exhibit a variety of TRM-like features.
Nick Gottardo MBChB FRACP PhD Head of Paediatric and Adolescent Oncology and Haematology, Perth Children’s Hospital; Co-head, Brain Tumour Research
Tropomyosin receptor kinase (TRK) fusions are detected in less than 2% of central nervous system tumors. There are limited data on the clinical course of affected patients.