Phosphatidylserine-dependent ingestion of apoptotic cells promotes TGF-β1 secretion and the resolution of inflammation
J. Clin. Invest. Mai-Lan N. Huynh, et al. 109:41 doi:10.1172/JCI11638 [Go to this article.]

Figure 6
In vivo TGF-β1 secretion in thioglycollate-stimulated peritoneum after instillation of apoptotic PLB-985 cells (ApoPLB) expressing phospholipid PS or PC in the outer leaflet of the plasma membrane. The peritonea were lavaged 1 hour after instillation of cells and TGF-β1 determined by ELISA. (a) ApoPLB that expressed PS (ApoPLB + PS) induced TGF-β1 when compared with HBSS (control), while unmodified ApoPLB (ApoPLB) or ApoPLB expressing PC (ApoPLB + PC) did not. *P < 0.05, n ≥ 9, ± SD. (b) In vivo TGF-β1 secretion in LPS-stimulated lungs after instillation of buffer (control), or PS or PC liposomes. TGF-β1 in BALF obtained 1 hour later was induced by PS liposomes above control levels, but not by PC liposomes. *P < 0.05, n ≥ 12, ± SD.