Table 2 Comparison of endogenous and exogenous stem/progenitor cells in the lung regeneration/repair
Cell type | Isolation | Purification | Culture | Risk of contamination | Ability of self-renewal | Ability of differentiation | Adverse reaction |
|---|---|---|---|---|---|---|---|
Exogenous stem progenitor cells | + | + | + | ± | + | + | ± |
Endogenous stem progenitor cells | − | − | − | − | + | + | − |