Inflammation INSIGHTS

Modeling Inflammatory Diseases with NOD2 Knockout Mice

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How the Mucosal Barrier Maintains Homeostasis The mucosal barrier lining the digestive tract is not homogenous and consists of three main components1: An intestinal epithelium, physically separating external environment from the deeper tissues of the body, which contains seven cell types, including stem cells required for epithelial renewal, and some immune cells A mucus layer, composed of mucins and antimicrobial peptides, which forms a protective layer over...  Read More

IBD Severity and Fungi in Microbiome

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Source: Limon et al.1 The microbiome includes not just bacteria, but also fungi, viruses and parasites. While most of the attention has been on bacterial components of the microbiome, new research links a commensal yeast found on human skin to disease severity in inflammatory bowel disease (IBD). Linking Common Fungi with IBD Severity In a new paper published in Cell Host & Microbe, Limon et al. examined...  Read More

Summary of colitis mouse models in IBD research

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Inflammatory bowel diseases (IBD) arise from a convergence of underlying genetic susceptibility, immune system dysfunction, environmental factors, and shifts in gut microbiota. Due to the multifactorial feature of these diseases, different animal models have been utilized to investigate the underlying mechanisms and develop potential therapeutic strategies. Colitis Animal Models In the table below, we summarize commonly used colitis mouse models and provide key features and tips for...  Read More

Endocannabinoids Prevent Inflammation, Maintain Intestinal Homeostasis

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The inflammatory bowel diseases (IBD) are conditions regulated by a combination of genetic, immune and microbial factors. Although it is a normal component of host defense against pathogens, neutrophil influx to the intestinal lumen is also associated with severe pathology in IBD. In a recent manuscript by Szabady et al., the authors demonstrate a novel role for endocannabinoid compounds in regulating intestinal inflammation by limiting neutrophil migration...  Read More

Marvel Super Heroes Take on IBD

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Takeda Pharmaceuticals has joined forces with Marvel Custom Solutions to develop a graphic novel in which the super heroes have Crohn's disease or ulcerative colitis, and other characters care for family members or patients with Inflammatory Bowel Disease (IBD). As part of a Takeda program called IBD Unmasked, the graphic novel was developed in partnership with Marvel. They consulted with an IBD advisory panel consisting of patients...  Read More

AAI Travel Grant Supports GvHD Researcher

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Taconic AAI 2017 travel grant awardee, Trivendra Tripathi (left) and Taconic Field Applications Scientist, Philip Dubé Taconic Biosciences awarded this year's AAI Travel Grant to Dr. Trivendra Tripathi, who presented his work on immunotherapy for graft-versus-host disease (GvHD) at the 2017 Annual Meeting of the American Association of Immunologists in Washington, DC. As a postdoctoral fellow in the lab of Dr. HyeMee Joo at the Baylor Institute...  Read More

Resuscitation Fluid Composition May Improve Sepsis Outcomes

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While modern medicine has done little to improve the mortality rates from severe sepsis, modifications in resuscitation fluid composition may prevent disease progression and improve outcomes. Researchers at McMaster University recently demonstrated that altering the concentrations of gluconate and acetate in resuscitation fluid impacts both hepatic cytokine production and leukocyte recruitment in a C57BL/6 mouse model of sepsis. "Resuscitation fluid composition affects hepatic inflammation in a murine...  Read More

Webinar Q&A — Colitis Animal Models in IBD Research

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Dr. Philip Dubé recently presented a webinar on colitis animal models for IBD research. His presentation introduced three major types of colitis models — chemically-induced, genetically engineered spontaneous colitis models, and adoptive transfer models — with examples of specific models from each type reviewed. Due to time constraints, many of the questions submitted during the webinar went unanswered. We present a full Q&A here. Dextran Sulfate Sodium...  Read More

Versatile Applications of the TNFα Mouse

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Research models are often engineered to help answer a narrow set of experimental questions; however, cross-breedings and other experimental interventions allow investigators to dramatically broaden the utility of transgenic mouse models. This is particularly true for models with strong and relatively easy-to-monitor phenotypes, two properties which support a potential platform for multiple rapid discoveries. One such example is the human TNFα mouse: a transgenic mouse that over-expresses...  Read More

Guidelines for Use of Humanized Mice in IBD Drug Discovery

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Inflammatory Bowel Disease (IBD) is a chronic immunologically mediated disease with no known cure. Can humanized mice speed up IBD drug discovery, bringing relief to the estimated 1.4 million Americans with this difficult condition? To support IBD research, Taconic Biosciences hosted a webinar by TransCure BioServices experts: Chief Executive Officer (CEO), Dr. Patrick Nef, and Chief Scientific Officer (CSO), Dr. Sebastien Tabruyn. TransCure is a contract research...  Read More