Immunofluorescent staining of neurogenic, adipogenic, osteogenic and tubulogenic markers in RPTEC/TERT1, HRTPT and HREC24T cells cultured in vitro. (A.1-C.1). Staining for neurogenic marker NF-200 in RPTEC/TERT1 (A.I), HRTPT (B.1) and HREC24T (C.I) cells grown in neurogenic differentiation media. (A.II-C.II). Staining for adipogenic marker A-FABP in RPTEC/TERT1 (A.II), HRTPT (B.II) and HREC24T (C.II) cells grown in adipogenic differentiation media. (A.III-C.III). Staining for osteogenic marker AP in RPTEC/TERT1 (A.III), HRTPT (B.III) and HREC24T (C.III) cells grown in oesteogenic differentiation media. Staining for tubulogenic markers AQP-1 (A.IV-C.IV), CAL (A.V-C.V) and THP (A.VI-C.IV) in RPTEC/TERT1, HRTPT and HREC24T cells grown in tubulogenic media. Scale bar = 25 µm. Magnification x400.