CD4 and colitis: The frequency of CD4+IL-4+ Th2 cells was mildly reduced after induction of colitis by DSS, which did not change with or without cADSC administration (control: 3.0% ± 0.1%; PBS: 2.3% ± 0.6%; primary: 2.1% ± 2.2%; cADSC-K4DT: 2.2% ± 0.2%; cADSC-K4D: 2.7% ± 1.1%; Figure 3B).