Pulmonary surfactant protein A (SP-A) is expressed by epithelial cells of small and large intestine.

@article{Rubio1995PulmonarySP,
  title={Pulmonary surfactant protein A (SP-A) is expressed by epithelial cells of small and large intestine.},
  author={Saioa Rubio and Thierry Lacaze-Masmonteil and Bernadette Chailley-Heu and Axel Kahn and Jacques R. Bourbon and Robert A Ducroc},
  journal={The Journal of biological chemistry},
  year={1995},
  volume={270 20},
  pages={12162-9}
}
Surfactant protein A (SP-A) is the most abundant protein associated with phospholipids in pulmonary surfactant. There are several lines of evidence that pulmonary and gastrointestinal epithelium produce closely related surface-active materials, although the presence of SP-A in gastrointestinal tract has so far not been reported. Indirect immunofluorescence experiments using different antibodies raised against rat pulmonary SP-A showed that some jejunal and colonic but not gastric epithelial… CONTINUE READING