PMID- 25189170 OWN - NLM STAT- MEDLINE DCOM- 20151110 LR - 20211021 IS - 1757-6512 (Electronic) IS - 1757-6512 (Linking) VI - 5 IP - 5 DP - 2014 Sep 4 TI - Maintenance of human amnion epithelial cell phenotype in pulmonary surfactant. PG - 107 LID - 10.1186/scrt495 [doi] LID - 107 AB - INTRODUCTION: Preterm newborns often require mechanical respiratory support that can result in ventilation-induced lung injury (VILI), despite exogenous surfactant treatment. Human amnion epithelial cells (hAECs) reduce lung inflammation and resultant abnormal lung development in preterm animals; co-administration with surfactant is a potential therapeutic strategy. We aimed to determine whether hAECs remain viable and maintain function after combination with surfactant. METHODS: hAECs were incubated in surfactant (Curosurf) or phosphate-buffered saline (PBS) for 30 minutes at 37 degrees C. Cell viability, phenotype (by flow cytometry), inhibition of T-cell proliferative responses and differentiation into lung epithelium-like cells (assessed with immunohistochemical staining of surfactant protein (SP)-A) were investigated. RESULTS: Cell viability and apoptosis of hAECs were not altered by surfactant, and hAEC phenotype was not altered. hAECs maintained expression of epithelial cell adhesion molecule (EpCAM) and human leukocyte antigen (HLA)-ABC after surfactant exposure. Expression of HLA-DR, CD80 and CD86 was not increased. Immunosuppression of T cells by hAECs was not altered by surfactant. hAEC differentiation into lung epithelium-like cells was equivalent after exposure to PBS or surfactant, and SP-A expression was equivalent. CONCLUSION: Surfactant exposure does not alter viability or function of hAECs. Thus a combination therapy of hAECs and surfactant may be an efficacious therapy to ameliorate or prevent preterm lung disease. FAU - McDonald, Courtney A AU - McDonald CA FAU - Melville, Jacqueline M AU - Melville JM FAU - Polglase, Graeme R AU - Polglase GR FAU - Jenkin, Graham AU - Jenkin G FAU - Moss, Timothy J M AU - Moss TJ LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140904 PL - England TA - Stem Cell Res Ther JT - Stem cell research & therapy JID - 101527581 RN - 0 (Biological Products) RN - 0 (Phospholipids) RN - 0 (Pulmonary Surfactants) RN - KE3U2023NP (poractant alfa) SB - IM MH - Amnion/*cytology/drug effects/metabolism MH - Animals MH - Apoptosis/drug effects MH - Biological Products/pharmacology MH - Cell Culture Techniques/methods MH - Cell Survival/drug effects MH - Epithelial Cells/cytology/drug effects/metabolism MH - Female MH - Flow Cytometry MH - Humans MH - Infant, Newborn MH - Mice MH - Mice, Inbred C57BL MH - Phenotype MH - Phospholipids/pharmacology MH - Pregnancy MH - Pulmonary Surfactants/metabolism/*pharmacology PMC - PMC4169816 EDAT- 2014/09/06 06:00 MHDA- 2015/11/11 06:00 PMCR- 2014/09/04 CRDT- 2014/09/06 06:00 PHST- 2013/12/12 00:00 [received] PHST- 2014/08/07 00:00 [accepted] PHST- 2014/09/06 06:00 [entrez] PHST- 2014/09/06 06:00 [pubmed] PHST- 2015/11/11 06:00 [medline] PHST- 2014/09/04 00:00 [pmc-release] AID - scrt495 [pii] AID - 392 [pii] AID - 10.1186/scrt495 [doi] PST - epublish SO - Stem Cell Res Ther. 2014 Sep 4;5(5):107. doi: 10.1186/scrt495.