Mice, Inbred NOD
These mice spontaneously develop autoimmune diabetes, making them a valuable tool for studying the immunological and genetic factors involved in disease pathogenesis.
The NOD mouse strain is characterized by progressive insulitis, leading to destruction of pancreatic beta cells and the onset of hyperglycemia.
Researchers leverage these mice to investigate novel therapeutic interventions, as well as to explore the underlying mechanisms of autoimmune processes.
This MeSH term provides a concise overview of the key features and applications of inbred NOD mice in biomedical research.
Most cited protocols related to «Mice, Inbred NOD»
Arthritis was induced by intraperitoneal injection of 400 µl of arthritogenic (K/B×N) or control serum into WT or PLCγ2−/− bone marrow chimeras or intact (nonchimeric) mice, followed by daily assessment of arthritis development for 2 wk. Visible clinical signs of arthritis were scored on a 0–10 scale by two investigators blinded for the origin and treatment of the mice. Ankle thickness was measured by a spring-loaded caliper (Kroeplin). For histological analysis, mice were killed 4 d after serum transfer and their ankle joints were fixed in formalin (Sigma-Aldrich). The joints were then decalcified, embedded in paraffin, sectioned, and stained with hematoxylin and eosin (Histopathology Llc.). Photomicrographs were taken on a microscope (DMI 6000B; Leica).
To assess articular function, mice were placed on a custom-made wire grid (Charles River Laboratories) with identical wire thickness and spacing to a regular wire cage lid. The wire grid was flipped upside down and the length of time the mice held on to the grid was recorded. This test was performed three times daily during the period of 8–12 d after the serum injection. The obtained data were combined into holding-on curves similar to Kaplan-Meier survival curves.
Most recents protocols related to «Mice, Inbred NOD»
Example 23
We have demonstrated that LXR agonists inhibit in vitro cancer progression phenotypes in breast cancer, pancreatic cancer, and renal cancer. To investigate if LXR agonist treatment inhibits breast cancer primary tumor growth in vivo, mice injected with MDA-468 human breast cancer cells were treated with either a control diet or a diet supplemented with LXR agonist GW3965 2 (
To determine the effect of orally delivered GW3965 2 on breast cancer tumor growth, 2×106 MDA-468 human breast cancer cells were resuspended in 50 μL PBS and 50 μL matrigel and the cell suspension was injected into both lower memory fat pads of 7-week-old Nod Scid gamma female mice. The mice were assigned to a control diet treatment or a GW3965-supplemented diet treatment (75 mg/kg/day) two days prior to injection of the cancer cells. The GW3965 2 drug compound was formulated in the mouse chow by Research Diets, Inc. Tumor dimensions were measured using digital calipers, and tumor volume was calculated as (small diameter)2×(large diameter)/2.
Treatment with GW3965 resulted in significant reduction in breast cancer tumor size in vivo (
Example 5
Cotreatment with GABA Enhances the Ability of IL-2 to Reverse T1D.
Treatment with IL-2 has been shown to have a modest ability to reverse hyperglycemia in newly diabetic NOD mice. We now have data showing that administration of IL-2 with GABA can enhance its therapeutic effect, and more efficiently reverse hyperglycemia. In the
It is understood that the examples and embodiments described herein are for illustrative purposes only and that various modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this application and scope of the appended claims. All publications, patents, and patent applications cited herein are hereby incorporated by reference in their entirety for all purposes.
Example 51
The NOD SCID gamma mouse model of chronic, asymptomatic C. parvum infection was used to test in vivo compound efficacy. NOD SCID gamma mice were infected with ˜1×105 C. parvum oocysts by oral gavage 5-7 days after weaning. The infected animals begin shedding oocysts in the feces 1 week after infection, which is measured by quantitative PCR (qPCR). Based on experience with the positive control compound paromomycin, four mice are required per experimental group to achieve 80% power to detect an 80% percent reduction in parasite shedding after four days of drug compound. In additional to the experimental drug regimen groups, additional negative (gavage with DMSO/methylcellulose carrier) and positive (paromomycin 2000 mg/kg once daily) control groups are included in each experiment. Mice are infected 5-7 days after weaning (day −6), infection is confirmed 1 week later (day 0), and experimental compounds are dosed by oral gavage on days 1-4. The dosing frequency was as indicated. Treatment efficacy was assessed by measurement of fecal oocyst shedding by qPCR on day 5.
For the cell proliferation assay, isogenic PANC-1 (50,000 cells/well) and BxPC-3 (100,000 cells/well) cell lines stably expressing control or PRDM16 gRNA were inoculated into 6-well plates. Three (for PANC-1) and six (for BxPC-3) days after inoculation, cells were trypsinized and mixed with equal volumes of trypan blue (#T10282; Invitrogen) before being counted using an automatic cell counter (#AMQAF2000; Invitrogen Countess 3 FL). Each well was counted twice and averaged to ensure accurate cell counts were obtained.
For the in vivo growth assay, NOD scid gamma (NSG) mice were injected subcutaneously with isogenic PANC-1 and BxPC-3 cell lines stably expressing control or PRDM16 gRNA (106 cells) under septic conditions. During the observation period of ∼2 mo, mice were maintained in sterile conditions and sacrificed if they displayed any symptoms of illness. At the end of the observation period, tumors were dissected, weighted, and imaged using a 12-megapixel f/1.8 aperture camera.
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More about "Mice, Inbred NOD"
These mice spontaneously develop autoimmune diabetes, making them a valuable tool for investigating the immunological and genetic factors involved in disease pathogenesis.
The NOD mouse strain is characterized by progressive insulitis, leading to the destruction of pancreatic beta cells and the onset of hyperglycemia.
Researchers leverage these mice to explore novel therapeutic interventions and the underlying mechanisms of autoimmune processes.
The NOD/SCID mouse is another important model, which lacks functional T and B cells, making it useful for studying the role of the immune system in disease development.
Similarly, the NOD scid gamma (NSG) mouse, a derivative of the NOD/SCID strain, is commonly used in immunology research due to its severely compromised immune system.
In addition to the standard NOD mice, researchers may also use female NOD/SCID mice or the NOD.Cg-Prkdcscid Il2rgtm1Wjl/SzJ strain, which have unique characteristics that make them suitable for certain applications.
The NOD/ShiLtJ mouse, a substrain of the NOD mouse, is another variant that is often used in diabetes research.
These inbred mouse models, along with related strains like the NOD/SCID and NSG mice, have become indispensable tools in the field of type 1 diabetes research.
Researchers can utilize these mice to investigate the pathogenesis of the disease, test novel therapies, and gain valuable insights into the underlying mechanisms of autoimmunity.
Matrigel, a basement membrane extract, is also commonly used in studies involving these mouse models to provide a more physiologically relevant environment for cell growth and tissue formation.
By leveraging the insights and capabilities of these inbred mouse models, researchers can accelerate the development of new treatments and deepen our understanding of the complex processes involved in type 1 diabetes and other autoimmune disorders.