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- W4300080416 abstract "Inflammatory bowel disease (IBD) is an inflammatory chronic disease in the gastrointestinal tract (GUT). In the United States, there are approximately 1.4 million IBD patients. It is generally accepted that a dysregulated immune response to gut bacteria initiates the disease and disrupts the mucosal epithelial barrier. We recently show that gut-homing regulatory T (Treg) cells are a promising therapy for IBD. Accordingly, this article presents a protocol for in vivo augmentation of gut-homing Treg cell induction. In this protocol, dendritic cells are engineered to produce locally high concentrations of two molecules de novo, active vitamin D (1,25-dihydroxyvitamin D or 1,25[OH]2D) and active vitamin A (retinoic acid or RA). We chose 1,25(OH)2D and RA based on previous findings showing that 1,25(OH)2D can induce the expression of regulatory molecules (e.g., forkhead box P3 and interleukin-10) and that RA can stimulate the expression of gut-homing receptors in T cells. To generate such engineered dendritic cells, we use a lentiviral vector to transduce dendritic cells to overexpress two genes. One gene is the cytochrome P450 family 27 subfamily B member 1 that encodes 25-hydroxyvitamin D 1α-hydroxylase, which physiologically catalyzes the synthesis of 1,25(OH)2D. The other gene is the aldehyde dehydrogenase 1 family member A2 that encodes retinaldehyde dehydrogenase 2, which physiologically catalyzes the synthesis of RA. This protocol can be used for future investigation of gut-homing Treg cells in vivo." @default.
- W4300080416 created "2022-10-03" @default.
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- W4300080416 date "2020-01-22" @default.
- W4300080416 modified "2023-09-29" @default.
- W4300080416 title "In Vivo Augmentation of Gut-Homing Regulatory T Cell Induction" @default.
- W4300080416 doi "https://doi.org/10.3791/60585-v" @default.
- W4300080416 hasPublicationYear "2020" @default.
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