| BCRJ Code | 0072 |
| Cell Line | CRFK |
| Species | Felis cattus |
| Vulgar Name | Cat |
| Tissue | Kidney |
| Cell Type | Epithelial |
| Morphology | Epithelial-Like |
| Disease | Normal |
| Growth Properties | Adherent |
| Sex | Female |
| Age/Ethinicity | 12 Week / |
| Derivation | CRFK cells were isolated from the cortical portion of the kidneys of a 10-12 week old normal female domestic cat. |
| Applications | CRFK are extensively used in feline virus research. This cell line is a suitable transfection host. |
| Virus Succeptility: | Feline panleukopenia virus Feline calicivirus Reovirus (Feline) Felid herpesvirus 1 Canine parvovirus Rabies virus Bovine viral diarrhea virus 1 , Bovine viral diarrhea virus 1 |
| Biosafety | 1 |
| Culture Medium | Dulbecco's Modified Eagle's Medium (DMEM) with 1.0 g/L glucose and 10% of fetal bovine serum. |
| Subculturing | Volumes used in this protocol are for 75 cm2 flask; proportionally reduce or increase amount of dissociation medium for culture vessels of other sizes. T-75 flasks are recommended for subculturing this product. Remove and discard culture medium. Briefly rinse the cell layer with PBS without calcium and magnesium to remove all traces of serum that contains trypsin inhibitor. Add 2.0 to 3.0 mL of Trypsin-EDTA solution to flask and observe cells under an inverted microscope until cell layer is dispersed (usually within 5 to 15 minutes). Note: To avoid clumping do not agitate the cells by hitting or shaking the flask while waiting for the cells to detach. Cells that are difficult to detach may be placed at 37°C to facilitate dispersal. Add 6.0 to 8.0 mL of complete growth medium and aspirate cells by gently pipetting. Add appropriate aliquots of the cell suspension to new culture vessels. Incubate cultures at 37°C. NOTE: For more information on enzymatic dissociation and subculturing of cell lines consult Chapter 12 in Culture of Animal Cells, a manual of Basic Technique by R. Ian Freshney, 6th edition, published by Alan R. Liss, N.Y., 2010. |
| Subculturing Medium Renewal | 2 to 3 times per week |
| Subculturing Subcultivation Ratio | 1:3 to 1:8 |
| Culture Conditions | Atmosphere: air, 95%; carbon dioxide (CO2), 5% Temperature: 37°C |
| Cryopreservation | 95% FBS + 5% DMSO (Dimethyl sulfoxide) |
| Thawing Frozen Cells | SAFETY PRECAUTION:
It is strongly recommended to always wear protective gloves, clothing, and a full-face mask when handling frozen vials. Some vials may leak when submerged in liquid nitrogen, allowing nitrogen to slowly enter the vial. Upon thawing, the conversion of liquid nitrogen back to its gas phase may cause the vial to explode or eject its cap with significant force, creating flying debris.
NOTE: It is important to avoid excessive alkalinity of the medium during cell recovery. To minimize this risk, it is recommended to place the culture vessel containing the growth medium in the incubator for at least 15 minutes before adding the vial contents. This allows the medium to stabilize at its normal pH (7.0 to 7.6). |
| References | Crandell RA , et al. Development, characterization, and viral susceptibility of a feline (Felis catus) renal cell line (CRFK). In Vitro 9: 176-185, 1973. Fabricant CG , et al. Microbial studies of feline urolithiasis. J. Am. Vet. Med. Assoc. 158: 976-980, |
| Depositors | Maurício José Fernades, Vencofarma do Brasil |
| ATCC | CCL-94 |
| Cellosaurus | CVCL_2426 |
