Task: Answer Verification
Input (English): Question: Does keratinocyte growth factor induced epithelial proliferation facilitate retroviral-mediated gene transfer to distal lung epithelia in vivo?
Answer: KGF transiently stimulates epithelial proliferation in vivo, facilitating MuLV-based gene transfer. Retroviral vectors may encounter multiple barriers which have evolved to defend the lung from infections.
Output (English): yes