Table 2.
Mouse models of glial depletion and their epithelial phenotypes.
Approach | Method | Timing | EGC loss | Barrier integrity |
Transport function |
Epithelial proliferation |
inflammation | Motility | References | ||
---|---|---|---|---|---|---|---|---|---|---|---|
Chemical | 6-AN | Single IP dose | p1-p11 | X | MP EGCs present but abnormal | X | NR | NR | X | NR | [32] |
Fluorocitrate | Daily IP x 7 days | Adult | X | MP EGCs present but abnormal | X | NR | NR | X | ✓ | [40] | |
Genetic | hGFAP-HA; CL4-TCR | Constitutive | ✓ | ↑ # GFAP+ cells in MP and SMP | ✓ | NR | NR | ✓ | NR | [35] | |
hGfapCre/ERT2; Rosa26iDTR | Single dose of TAM followed by two IP doses of DT (12-18h later) | p6-p7 | ✓ | ↑ GFAP IR | X | NR | NR | X | ✓ | [37] | |
Pip1Cre/ERT2; Rosa26iDTR | ✓ | ↑ GFAP IR | X | NR | NR | X | ✓ | ||||
Sox10Cre/ERT2; Rosa26iDTR | ✓ | ↑ GFAP IR | X | NR | NR | X | ✓ | ||||
hGFAP-HSV-Tk | Continuous GCV (100m g/kg/day) | Adult | ✓ | ↑ GFAP IR in MP | ✓ | NR | NR | ✓ | NR | [33], [34] | |
hGFAP-HSV-Tk transgenic | IP GCV (25mg/kg) twice a week | ✓ | ↑ GFAP IR and protein | X | NR | X | X | NR | [41] | ||
hGFAP-HA | Adoptive transfer of activated HA-specific CD8+ T cells | ✓ | ↑ GFAP IR in MP | ✓ | ✓ | NR | X | ✓ | [36] | ||
hGfapCre; Rosa26iDTR | Intracolonic DT injection | ✓ | ↑ GFAP IR and protein levels | NR | NR | NR | NR | NR | [41] | ||
hGfapCre/ERT2; Rosa26DTA | Single IP dose (2mg) TAM and then continuous in chow | ✓ | ↑ GFAP IR in MP | X | NR | ✓ | X | NR | [38] | ||
Plp1Cre/ERT2; Rosa26DTA | Single oral dose of TAM (8mg) | ✓ | ↑ #S100β+ cells in MP, muscuiaris externa and mucosa ↑ GFAP IR in MP |
X | NR | X | X | ✓ | [34] | ||
Plp1Cre/ERT2; Rosa26iDTR | 4-OHT 1.5mg IP x 2 doses; Intracolonic injection of 20ng DT | NR | NR | NR | NR | NR | NR | NR | [41] | ||
Plp1Cre/ERT2; Rosa26DTA | Single IP dose (2mg) TAM and then continuous in chow | ✓ | ↑ Plp1 mRNA and Plp1-Tomato+ cells | X | NR | X | X | NR | [38] | ||
Plp1Cre/ERT2; hGfapCre/ERT2; Rosa26DTA | NR | NR | ✓ | NR | NR | ✓ | NR |
✓ – Yes, phenotype observed; X – No, phenotype not observed; NR – not reported; IP – intraperitoneal; GCV – ganciclovir; TAM – Tamoxifen; IR – immunoreactivity; MP – myenteric plexus; SMP – submucosal plexus.