FGF7 and acute lung injury: Multipotent mesenchymal stromal cells (MSCs) have been shown to possess the properties of immunomodulation and tissue repair in both experimental acute lung injury (ALI) and sepsis models through the secretion of several growth factors (TNF-α-stimulated gene-6), KGF (keratinocyte growth factor), prostaglandin E2, et al.), and anti-inflammatory cytokines (IL-10).5–7