| bTJ | Bicellular tight junction |
| CD | Crohn’s disease |
| Cldn | Claudin |
| DAPI | 4’,6-diamidino-2-phenylindole |
| ERK | Extracellular signal-regulated kinases |
| FD4 | FITC-dextran 4 kDa |
| FFPE | Formalin-fixed paraffin-embedded |
| FITC | Fluorescein isothiocyanate |
| IBD | Inflammatory bowel disease |
| IFN | Interferon |
| IL | Interleukin |
| JAK | Janus kinase |
| LR | Leptin receptor |
| LSM | Lasor scanning microscope |
| LSR | Lipolysis-stimulated lipoprotein receptor |
| MAPK | Mitogen-activated protein kinase |
| PI3K | Phosphoinositide 3-kinase |
| SES-CD | Simple endoscopic score for CD |
| STAT | Signal transducer and activator of transcription |
| TER | Transepithelial resistance |
| TJ | Tight junction |
| tTJ | Tricellular tight junction |
| TNF | Tumor necrosis factor |