Issues
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Cover image
Cover Image
Cover: View of retinal microglia genetically expressing green fluorescent protein in the DBA/2J mouse model of chronic glaucoma. This posterized, ex vivo confocal image of a retinal flat mount preparation shows cells tiling the inner surface of the retina and aligned with radially oriented blood vessels. At the centre of the retina, a dense subset of microglial cells cluster over the optic nerve head. Sequential in vivo confocal ophthalmoscopic imaging of retinal microglia during early progression of mouse chronic glaucoma allows characterisation of the timecourse of activation and redistribution of these innate immune cells. This will help elucidate the significance of microglia in optic nerve and retinal neurodegeneration. See article by Bosco et al. on page 443.
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IN THIS ISSUE
A MODEL FOR LIFE
Looking for a needle in a haystack – tackling rare diseases: an interview with Kym Boycott
Kym Boycott is currently a Clinical Geneticist at the Children's Hospital of Eastern Ontario (CHEO) and a Senior Scientist at the CHEO Research Institute, in Canada, where she tries to better understand mechanisms of rare genetic diseases and improve the management of pediatric patients with these conditions. Her interest in Medical Genetics dates back to her undergraduate studies at Queen's University in Kingston, when she was captured by Dr Patrick MacLeod's lectures on this subject. Thus, she embarked on a PhD in Medical Genetics and joined Dr Torben Bech-Hansen's lab at the University of Calgary, where she investigated the cause of a rare genetic form of vision loss. After completion of her PhD, she attended the medical school program at the University of Calgary and obtained her MD in 2005. Having both a PhD and MD allowed her to have a translational perspective from the beginning of her career. At CHEO, Kym and her group aim to bridge basic and clinical knowledge to quickly diagnose – by using next-generation sequencing – and improve the management of rare diseases, also known as orphan diseases. Kym is co-leader of the Canadian Rare Diseases Models and Mechanisms (RDMM) project, the goal of which is to connect basic scientists who work with animal models to clinician investigators studying rare diseases, thereby catalyzing investigation of disease mechanism and in some instances facilitating therapeutic configuration for rare diseases. In this interview, Kym shares with us her unique experience and expertise, fighting on the front line against rare diseases.
REVIEW
Cellular models and therapies for age-related macular degeneration
Summary: Here, we discuss the emerging cell-culture models and potential stem-cell-based therapies for AMD, a blinding disorder that affects millions of people worldwide.
RESEARCH ARTICLES
Ascl1 phospho-status regulates neuronal differentiation in a Xenopus developmental model of neuroblastoma
Highlighted Article: Neuroblastoma cells are stalled at a developmental stage at which they express high ASCL1. Multi-site phosphorylation of ASCL1, driven by elevated N-Myc and CDK activity, limits noradrenergic precursor and NB cell differentiation.
Neurodegeneration severity can be predicted from early microglia alterations monitored in vivo in a mouse model of chronic glaucoma
Highlighted Article: This study provides the first evidence that in vivo monitoring of the time course and dynamics of early microglia alterations might serve as sensitive predictors of late chronic neurodegeneration in a mouse model of inherited glaucoma.
Modeling and study of the mechanism of dilated cardiomyopathy using induced pluripotent stem cells derived from individuals with Duchenne muscular dystrophy
Highlighted Article: Patient-derived induced pluripotent stem cells are used to establish an in vitro model of DMD-associated cardiomyopathy that could be used for future preclinical testing.
Sodium valproate increases the brain isoform of glycogen phosphorylase: looking for a compensation mechanism in McArdle disease using a mouse primary skeletal-muscle culture in vitro
Summary: Use of this in vitro model showed that sodium valproate (VPA) can reverse the muscle phenotype from a McArdle-like to a normal histological and biochemical profile.
Of mice, flies – and men? Comparing fungal infection models for large-scale screening efforts
Summary: Can the fitness of deletion mutants in a murine model be predicted by their virulence in Drosophila melanogaster? For a fungal pathogen, the answer is, mostly, yes.
Adamtsl2 deletion results in bronchial fibrillin microfibril accumulation and bronchial epithelial dysplasia – a novel mouse model providing insights into geleophysic dysplasia
Summary: The extracellular protein ADAMTSL2 is a crucial regulator of microfibril composition in the extracellular matrix of bronchial smooth muscle cells and influences bronchial epithelial function.
Increased susceptibility to otitis media in a Splunc1-deficient mouse model
Summary: We document expression of the innate immune factor Splunc1 in the murine middle ear and Eustachian tube, and describe spontaneous development of otitis media in mice lacking functional Splunc1.
DMM Journal Meeting 2024: Pre-clinical Modelling of Human Genetic Disease and Therapy

Registration is now open for our 2024 Journal Meeting. Rapid advances in gene editing and genetic technologies have revolutionised our ability to model human genetic disease and provided new hope for gene therapies. At this Meeting, we will present the very latest advances in modelling human genetic disease.
Moving towards heart success – Disease Models & Mechanisms Special Issue

DMM's most recent special issue compiles articles that aim to move heart failure to heart success by fundamentally addressing the roots of failure to identify curative strategies.
Crossroads in Virology

Our October Editorial written by Sumana Sanyal emphasises the urgency of a concerted effort in understanding virus–host interactions to inform the development of therapeutics and vaccines, helping to predict disease outcomes. Read the full Editorial here.
A Model for Life - an interview with Professor Kiran Musunuru




Read our new A Model for Life interview with Kiran Musunuru. Prof Musunuru investigates the mechanisms of disease in model systems, with the ultimate goal of developing innovative gene editing therapies.
Sustainable Conferencing Initiative

Through our Sustainable Conferencing Grants, we promote the use of new technology and greener modes of travel. Our blog posts showcase examples of sustainability in action and share experience about how new technologies and conference formats work in practice.