Issues
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Cover image
Cover Image
Cover: The absence of the CAR-like membrane protein (CLMP) caused impaired peristaltic contractions in the intestinal tract and ureter due to a lack of gap-junctional communication between smooth muscle cells. Insufficient transport of chyme and urine caused a fatal delay to thrive and provoked a severe hydronephrosis in Clmp-knockout mice. Intrapelvic ink injections demonstrated the absence of physical obstructions (the image shows a Clmp-knockout urinary system). Ink easily flowed through the urinary path to the bladder (bottom of image). See article by Langhorst et al. (dmm032128). Cover image is licensed under a Creative Commons Attribution 4.0 International license.
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EDITORIAL
REVIEWS
Use of zebrafish to study Shigella infection
Summary: Here, we review how studying Shigella infection of zebrafish has illuminated novel research avenues in both infection and cell biology.
Gastroenteropancreatic neuroendocrine neoplasms: genes, therapies and models
Summary: Gastroenteropancreatic neuroendocrine neoplasms have been an understudied entity with limited treatment options. We discuss the disease models, including emerging organoids, that may provide biological and therapeutic insight into these diseases.
Intestinal epithelial cell polarity defects in disease: lessons from microvillus inclusion disease
Summary: Microvillus inclusion disease serves as a useful model to enhance our understanding of the intestinal trafficking and polarity machinery in health and disease.
RESEARCH ARTICLES
Developmental abnormalities in supporting cell phalangeal processes and cytoskeleton in the Gjb2 knockdown mouse model
Summary: A reduction in connexin 26 before opening of the tunnel of Corti impedes microtubule formation in supporting cells, and this may lead to cochlear developmental abnormalities and deafness in the Gjb2 knockdown mouse model.
Spliceosomal components protect embryonic neurons from R-loop-mediated DNA damage and apoptosis
Summary: Loss of RNA splicing factors causes R-loop accumulation and DNA damage in embryonic neurons, sensitizing them to radiation-induced cell death. These findings suggest that diseased cells with mutations in splicing factors are vulnerable to radiotherapy.
Inorganic arsenic causes fatty liver and interacts with ethanol to cause alcoholic liver disease in zebrafish
Summary: Using zebrafish, the authors show that exposure to a common environmental contaminant, inorganic arsenic, increases the risk of alcoholic liver disease.
Motor neuron degeneration correlates with respiratory dysfunction in SCA1
Summary: In this manuscript, we discovered motor neuron degeneration which correlates with respiratory failure in a knock-in mouse model of spinocerebellar ataxia type 1 (SCA1).
Divergent effects of adrenaline in human induced pluripotent stem cell-derived cardiomyocytes obtained from hypertrophic cardiomyopathy
Summary: Different concentrations of adrenaline have divergent effects during and immediately after administration in human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) obtained from hypertrophic cardiomyopathy (HCM) patients. Bisoprolol could not reduce the arrhythmias in HCM-specific hiPSC-CMs.
The IgCAM CLMP regulates expression of Connexin43 and Connexin45 in intestinal and ureteral smooth muscle contraction in mice
Summary: The function of the immunoglobulin cell adhesion molecule CLMP was investigated in a mouse model. CLMP is essential for intestinal and ureteral peristalsis, and for expression of Connexin43 and 45 in smooth muscle cells.
Superior cervical gangliectomy induces non-exudative age-related macular degeneration in mice
Summary: Ubiquitous alteration of choroid circulation causes localized retinal alterations in mice that are similar to human non-exudative age-related macular degeneration, thus providing a new potential experimental model of the disease.
Environmental factors regulate Paneth cell phenotype and host susceptibility to intestinal inflammation in Irgm1-deficient mice
Summary: In this study, we rederived conventionally raised Irgm1-deficient mice into specific pathogen-free and germ-free conditions. We show that these environments determine how Irgm1 regulates Paneth cell function and gut inflammation susceptibility.
Inhibition of galectin-3 ameliorates the consequences of cardiac lipotoxicity in a rat model of diet-induced obesity
Summary: Inhibition of Gal-3 activity reduced the excessive cardiac accumulation of lipids in rats fed a high fat diet. This was accompanied by the amelioration of mitochondria damage observed in obese rats.
RESOURCE ARTICLES
Modelling glioblastoma tumour-host cell interactions using adult brain organotypic slice co-culture
Editor's choice: A new ex vivo experimental approach to explore how glioblastoma stem cells interact with distinct brain microenvironments, with potential use a as preclinical model using new anticancer agents.
High-throughput screen for compounds that modulate neurite growth of human induced pluripotent stem cell-derived neurons
Summary: High-throughput, small molecule screening of hiPSC-derived neurons using a high-content, image-based approach focused on neurite growth identified hit compounds, including approved drugs, which target molecules or pathways known to regulate neurite growth.
Sex matters in preclinical research
DMM calls for improved inclusion, analysis and reporting of sex as a biological variable in preclinical animal modelling research. Read the full Editorial by Monica J. Justice.
Subject collection: Building advocacy into research
DMM’s new series - Building advocacy into research - features interviews, ‘The Patient’s Voice’, with patients and advocates for a range of disease types, with the aim of supporting the highest quality research for the benefit of all patients affected by disease.
Travelling Fellowships for early-career researchers
DMM and its sister journals offer Travelling Fellowships of up to £3,000 to graduate students and post-doctoral researchers wishing to make collaborative visits to other laboratories. Find out more about our Travelling Fellowships and read stories from previous grant recipients.
Read & Publish Open Access publishing: what authors say
We have had great feedback from authors who have benefitted from our Read & Publish agreement with their institution and have been able to publish Open Access with us without paying an APC. Read what they had to say.
The Forest of Biologists
Our Publisher Claire Moulton recently visited the two Woodland Trust UK sites where we are planting new native trees for published Research and Review papers and protecting ancient woodland on behalf of our peer reviewers.