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Raelene Nick Endersby Gottardo BSc (Hons) PhD MBChB FRACP PhD Brainchild Fellow; Co-Head, Brain Tumour Research Head of Paediatric and Adolescent
Raelene Nick Endersby Gottardo BSc (Hons) PhD MBChB FRACP PhD Brainchild Fellow; Co-Head, Brain Tumour Research Head of Paediatric and Adolescent
Raelene Nick Endersby Gottardo BSc (Hons) PhD MBChB FRACP PhD Brainchild Fellow; Co-Head, Brain Tumour Research Head of Paediatric and Adolescent
Hereditary cancer predisposition syndromes (HCPS) account for at least 10% of paediatric cancers.1 Li‐Fraumeni syndrome (LFS) is a dominant HCPS caused by mutations in the TP53 gene and is associated with an 80–90% lifetime risk of cancer, commencing in infancy.2 Children of affected individuals are at 50% risk of inheriting the family mutation.
Children with medulloblastoma and ependymoma are treated with a multidisciplinary approach that incorporates surgery, radiotherapy, and chemotherapy; however, overall survival rates for patients with high-risk disease remain unsatisfactory. Data indicate that plant-derived cannabinoids are effective against adult glioblastoma; however, preclinical evidence supporting their use in pediatric brain cancers is lacking. Here we investigated the potential role for Δ9-tetrahydrocannabinol (THC) and cannabidiol (CBD) in medulloblastoma and ependymoma. Dose-dependent cytotoxicity of medulloblastoma and ependymoma cells was induced by THC and CBD in vitro, and a synergistic reduction in viability was observed when both drugs were combined.
B cells are critical to the development of multiple sclerosis (MS), but the mechanisms by which they contribute to the disease are poorly defined. We hypothesised that the expression of CD32b (FcγRIIb), a receptor for the Fc region of IgG with inhibitory activities in B cells, is lower on B cell subsets from people with clinically isolated syndrome (CIS) or MS. CD32b expression was highest on post-naive IgM+ B cell subsets in healthy controls. For females with MS or CIS, significantly lower CD32b expression was identified on IgM+ B cell subsets, including naive and IgMhi MZ-like B cells, when compared with control females. Lower CD32b expression on these B cell subsets was associated with detectable anti-Epstein Barr Virus viral capsid antigen IgM antibodies, and higher serum levels of B cell activating factor. To investigate the effects of lower CD32b expression, B cells were polyclonally activated in the presence of IgG immune complexes, with or without a CD32b blocking antibody, and the expression of TNF and IL-10 in B cell subsets was assessed.
Liana’s story begins nine years ago. It starts with a sore ankle, a fever, a trip to the emergency room and clinic and finally a diagnosis of acute rheumatic fever (ARF).
This study suggests that germ-line DICER1 mutations make a clinically significant contribution to PinB, establishing DICER1 as an important susceptibility...
To identify links between drug resistance and gene deregulation we used oligonucleotide microarray technology.
The cure rate for pediatric patients with B precursor acute lymphoblastic leukemia (pre-B ALL) is steadily improving, however relapses do occur despite...