(micropuncture) and (proximal tubule cell line) research showed that transcytosis. (LTA). Opossum Kidney (Okay) Cells Okay cells were cultured and managed in high-glucose (450 mg/dl) Dulbeccos revised Eagles medium (DMEM) supplemented with 10% fetal bovine serum, penicillin (100 U/ml), and streptomycin (100 g/ml) as explained.21 For transcytosis study, OK cells were seeded on Transwell, and… Continue reading (micropuncture) and (proximal tubule cell line) research showed that transcytosis. (LTA).