Cited by 193Inflammatory Bowel DiseaseOcular Diseases and Behçet’s SyndromeGut microbiota and health

SAMP1/YitFc mouse strain: A spontaneous model of Crohnʼs disease-like ileitis

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Pizarro, Theresa T., Pastorelli, Luca, Bamias, Giorgos, Garg, Rekha R., Reuter, Brian K., Mercado, Joseph R., Chieppa, Marcello, Arseneau, Kristen O. +2 more·2011·Inflammatory Bowel Diseases

Abstract

The SAMP1/YitFc mouse strain represents a model of Crohn's disease (CD)-like ileitis that is ideal for investigating the pathogenesis of chronic intestinal inflammation. Different from the vast majority of animal models of colitis, the ileal-specific phenotype characteristic of SAMP1/YitFc mice occurs spontaneously, without genetic, chemical, or immunological manipulation. In addition, SAMP1/YitFc mice possess remarkable similarities to the human condition with regard to disease location, histologic features, incidence of extraintestinal manifestations, and response to conventional therapies. SAMP1/YitFc mice also display a well-defined time course of a predisease state and phases of acute and chronic ileitis. As such, the SAMP1/YitFc model is particularly suitable for elucidating pathways that precede the clinical phenotype that may lead to preventive, and therefore more efficacious, intervention with the natural course of disease, or alternatively, for the development of therapeutic strategies directed against chronic, established ileitis. In this review we summarize important contributions made by our group and others that uncover potential mechanisms in the pathogenesis of CD using this unique murine model of chronic intestinal inflammation.

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  • Senescence-accelerated mouse/prone (SAMP) strains, specifically the SAMP1/Yit substrain, have been recognized as valuable models for studying the genetic aspects of aging.

    “Senescence-accelerated mouse/prone (SAMP) strains, specifically the SAMP1/Yit substrain, have been recognized as valuable models for studying the genetic aspects of aging.”

    From Inflammation and aging: signaling pathways and intervention therapies (2023) · cites this paper as [300]

    The Derivation and Histopathology section says the original SAMP lines were bred for accelerated senescence, but the SAMP1/Yit substrain had lost that phenotype by the 20th generation and consistently developed ileitis instead. The paper presents SAMP1/Yit as a model of intestinal inflammation, contrary to the claim that this substrain is a model for studying the genetics of aging. No page number is available in our copy. (LLM, conf=0.87)

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  • The SAMP1/Yit mice exhibit both acute and chronic inflammation in the ileum and cecum, displaying a non-continuous pattern of inflammation.

    “The mice exhibit both acute and chronic inflammation in the ileum and cecum, displaying a non-continuous pattern of inflammation.300”

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Authors
Pizarro, T. T., Pastorelli, L., Bamias, G., Garg, R. R., Reuter, B. K., Mercado, J. R., Chieppa, M., Arseneau, K. O., Ley, K., & Cominelli, F.
Affiliations
  • Case Western Reserve University (US)
  • University of Milan (IT)
  • University of Alberta (CA)
  • University of Bari Aldo Moro (IT)
  • La Jolla Institute for Immunology (US)
Corresponding author
Pizarro, Theresa T.
Venue
Inflammatory Bowel Diseases
Published
2011-12
Volume
17
Issue
12
Pages
2566-2584
ISSN
1078-0998 (ISSN-L)
OpenAlex
W2073878909
Cited by
192
References
108
Citations by year
2026: 9 · 2025: 17 · 2024: 18 · 2023: 12 · 2022: 16 · 2021: 21 · 2020: 13 · 2019: 12 · 2018: 11 · 2017: 12 · 2016: 12 · 2015: 13 · 2014: 10 · 2013: 9 · 2012: 5
FWCI
0.88
Type
journal article
Language
en
Open access
Locations
  • Inflammatory Bowel Diseases (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • AIRUS (submittedVersion)
Funders
  • National Institutes of Health
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK 055812, P01DK091222, R01DK055812, P01DK057880, R01DK056762, DK066880, R56DK042191, R43DK066880, DK057880, DK042191, R37DK042191, R01DK042191, R56DK055812, DK-056762)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Inflammatory Bowel Disease
  • Health Sciences › Medicine › Ophthalmology › Ocular Diseases and Behçet’s Syndrome
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
Keywords
Crohn's disease
MeSH terms
Animals, Crohn Disease, Disease Models, Animal, Humans, Ileitis, Mice, Mutant Strains, Mice

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