摘要:
This invention relates transgenic animals that overexpress TL1A in a tissue specific manner to model inflammatory bowel disease (IBM such as colitis, Crohn's disease and ulcerative colitis, fibrosis, and related inflammatory diseases and conditions. TL1A transgenic animals constitutively express both TL1A and GFP in lymphoid and myeloid cell lineages, allowing convenient identification and sorting of immune cells involved in IBD disease progression, such as T-cells, antigen presenting cells (APC), and dendritic cells (DC). TL1A transgenic animals may be induced to exhibit gross fibrosis, or isolated cells may be implanted into immunodeficient mice to establish colitis.
摘要:
This invention relates transgenic animals that overexpress TL1A in a tissue specific manner to model inflammatory bowel disease (IBM such as colitis, Crohn's disease and ulcerative colitis, fibrosis, and related inflammatory diseases and conditions. TL1A transgenic animals constitutively express both TL1A and GFP in lymphoid and myeloid cell lineages, allowing convenient identification and sorting of immune cells involved in IBD disease progression, such as T-cells, antigen presenting cells (APC), and dendritic cells (DC). TL1A transgenic animals may be induced to exhibit gross fibrosis, or isolated cells may be implanted into immunodeficient mice to establish colitis.
摘要:
The invention provides a method of diagnosing or predicting susceptibility to a clinical subtype of Crohn's disease in a subject having Crohn's disease by determining the presence or absence of IgA anti-I2 antibodies in the subject, where the presence of the IgA anti-I2 antibodies indicates that the subject has a clinical subtype of Crohn's disease. In one embodiment, a method of the invention is practiced by further determining the presence or absence in the subject of a NOD2 variant, anti-Saccharomyces cerevisiae antibodies (ASCA), IgA anti-OmpC antibodies, or perinuclear anti-neutrophil cytoplasmic antibodies (pANCA). The methods of the invention can be used to diagnose or predict susceptibility to a clinical subtype of Crohn's disease, for example, a fibrostenotic subtype, a subtype characterized by the need for small bowel surgery, or a subtype characterized by the absence of features of ulcerative colitis.