Figure 1.
Observation of HPMCs. Observation of HPMCs under a microscope at (A) day 2 after primary culture (magnification, ×200; observed under light microscope, no staining) and (B) day 14 after primary culture (magnification, ×200; observed under light microscope, no staining). Immunofluorescence showed (C) vimentin-positive HPMCs (magnification, ×400; immunofluorescence staining) and (D) cytokeratin-positive HPMCs (magnification, ×400; immunofluorescence staining). (E) Electron microscopy showed an HPMC in PD effluent culture (magnification, ×10,000; gilded with ion sputter). (F) Transmission electron microscopy of an HPMC in PD effluent culture (magnification, ×4,000; gilded with ion sputter). (G) Mixed mesothelium (magnification, ×200; observed under light microscope, no staining). (H) Fibroblast-like mesothelium (magnification, ×200; observed under light microscope, no staining). (A–G) HPMCs were from the PD start group; (H) HPMCs were from the PD >6 months group. HPMCs, human peritoneal mesothelial cells; PD, peritoneal dialysis.