SNU-668

The SNU-668 cell line is a human gastric carcinoma model originally derived from the poorly differentiated adenocarcinoma tissue of the stomach. This cell line has been widely used in studies of gastric cancer pathogenesis, signaling mechanisms, and drug responsiveness. Genomic characterization reveals that SNU-668 carries frequent mutations and chromosomal aberrations commonly observed in diffuse-type gastric cancers. Notably, it shows alterations in key oncogenic pathways such as TP53 mutation and possible activation of PI3K/AKT signaling, which may contribute to its tumorigenic properties and therapy resistance.

SNU-668 has also been included in comprehensive multi-omics profiling projects such as the Cancer Cell Line Encyclopedia (CCLE), where it was assessed for transcriptomic, genomic, methylation, and proteomic signatures. The cell line exhibits distinct DNA methylation patterns and global histone modification profiles, which may play roles in epigenetic regulation of gene expression. Additionally, analysis of dependency maps has suggested lineage-specific vulnerabilities that could inform targeted therapy strategies for diffuse gastric carcinomas. As a model for stomach cancer with Asian ethnic background origin, SNU-668 continues to be an important tool in the preclinical evaluation of molecularly guided therapeutics.

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.