Cell Line:                              OK

Cell Description:                 Didelphis marsupialis virginiana (opossum), normal; kidney , cortex; proximal tubule; epithelial


Culture Medium:                 MEM (Eagle) with Earle's BSS, 90%; bovine serum 10% 

Subculturing:                       Remove medium, add fresh 0.025% trypsin, 0.03% EDTA solution for 2 minutes, rinse and remove. Incubate the flask at 37¡C until the cells detach (approximately 5 minutes). Add fresh medium, aspirate and dispense into new flasks.

Split Ratio:                            A split ratio of 1:4 to 1:8 is recommended

Fluid Renewal:                    2 to 3 times weekly

Growth Properties:             monolayer

Morphology:                         epithelial

Sterility:                                 Tests for mycoplasma, bacteria and fungi were negative

Tumorigenic:                                   no

Receptors Expressed:       alpha2-adrenergic; serotonin; parathyroid hormone; atrial natriuretic factor

Comments:                          Established from a femal adult opossum.


Yagil C et al. Insulin binding, internalization, and degradation by a cultured kidney cell line. Am. J. Physiol. 254: E601-E608, 1988; Cole JA et al. Regulation of sodium-dependent phosphate transport by parathyroid hormone in opossum kidney cells: adenosine 3', 5'-monophosphate-dependent and -independent mechanisms. Endocrinology 122: 2981-2989, 1988; Nakai M et al. Atrial natriuretic factor inhibits phosphate uptake in opossum kidney cells as a model of renal proximal tubules. Biochem. Biophys. Res. Commun. 152: 1416-1420, 1988; Cheng L et al. Alpha-2-adrenergic modulation of the parathyroid hormone-inhibition of phosphate uptake in cultured renal (OK) cells. Biochem. Biophys. Res. Commun. 155: 74-82, 1988; Koyama H et al. Establishment and haracterization of a cell line from the American opossum (Didelphys virginiana). In Vitro 14: 239-246, 1978; J. Pharmacol. 244: 571-578, 1988

ATCC designation:             CRL 1840