CV-1

CV-1 is an African green monkey cell line derived from the kidney in 1964. Initially used in research that focused on the transformation of the cancerogenic Rous sarcoma virus (RSV), this fibroblast-like cell line is widely used in biological research for virus production, transfection, and gene silencing.

These cells are negative for reverse transcriptase and being susceptible to several viruses, including poliovirus 1, herpes simplex, simian virus 40 (SV40), California encephalitis, and both Eastern and Western equine encephalitis.

The CV-1 cell line exhibits rapid growth, grows adherent on plastic and glass surfaces and shows chromosome number shifts at high passage levels. It has been observed that CV-1 cells exhibit increased tumorigenicity in Wistar rats treated with ATG as well as increased cell colony formation in soft agar.

Moreover, CV-1 cells support the replication of SV40 virus and exhibit rapid thymidine kinase (TK) activity following induction of simian, adeno, and papovavirus infections. The karyotype of CV-1 cells is 2n = 60, pseudodiploid. CV-1 cells have been used in a variety of specific applications in biological research, including efficacy testing, transfection host, and viruscide testing. They are also known to be a suitable host for transfection, especially by SV40 vectors.

37°C, 5% CO₂, humidified atmosphere.

1. Confirm that the vial remains deeply frozen upon delivery, as cells are shipped on dry ice to maintain optimal temperatures during transit.

2. Upon receipt, either store the cryovial immediately at temperatures below -150°C to ensure the preservation of cellular integrity, or proceed to step 3 if immediate culturing is required.

3. For immediate culturing, swiftly thaw the vial by immersing it in a 37°C water bath with clean water and an antimicrobial agent, agitating gently for 40-60 seconds until a small ice clump remains.

4. Perform all subsequent steps under sterile conditions in a flow hood, disinfecting the cryovial with 70% ethanol before opening.

5. Carefully open the disinfected vial and transfer the cell suspension into a 15 ml centrifuge tube containing 8 ml of room-temperature culture medium, mixing gently.

6. Centrifuge the mixture at 300 x g for 3 minutes to separate the cells and carefully discard the supernatant containing residual freezing medium.

7. Gently resuspend the cell pellet in 10 ml of fresh culture medium. For adherent cells, divide the suspension between two T25 culture flasks; for suspension cultures, transfer all the medium into one T25 flask to promote effective cell interaction and growth.

8. Adhere to established subculture protocols for continued growth and maintenance of the cell line, ensuring reliable experimental outcomes.

Mycoplasma contamination is excluded using both PCR-based assays and luminescence-based mycoplasma detection methods.

To ensure there is no bacterial, fungal, or yeast contamination, cell cultures are subjected to daily visual inspections.

For long-term preservation, place vials in vapor-phase liquid nitrogen at about −150 to −196 °C. Storage at −80 °C is acceptable only as a short interim step before transfer to liquid nitrogen.

Cryopreserved cell lines are shipped on dry ice in validated, insulated packaging with sufficient refrigerant to maintain approximately −78 °C throughout transit. On receipt, inspect the container immediately and transfer vials without delay to appropriate storage.

At Cytion, we stand behind the quality and viability of our products. We guarantee that our cells will be viable at the start of culture for 60 days after shipment from our facilities. We assure that all materials conform to the specifications described in the Certificate of Analysis and/or Product Sheet.

For full details, please refer to our Warranty Statement.