DSL-6A-C1

The DSL-6A/C1 cell line is a pancreatic ductal cell line originally derived from the DSL-6 transplantable acinar cell carcinoma, a tumor established from a primary acinar cell carcinoma of the pancreas in a male Lewis rat. This rat was exposed to azaserine intraperitoneally, leading to the development of the tumor. Initially, upon establishment in culture, DSL-6A/C1 cells retained the capability to produce amylase, a characteristic exocrine enzyme of acinar cells. However, this production ceased within one to two weeks of culture.

Over time, as the DSL-6A/C1 cells were maintained in culture and subjected to regrafting experiments, they underwent a notable phenotypic transformation. The cells lost structural and immunohistochemical markers that are typical of acinar cells and instead began expressing markers indicative of ductal cell phenotype. One of the key markers acquired during this transformation is the cystic fibrosis transmembrane regulator (CFTR), which is commonly associated with ductal cells in the pancreas. This shift in marker expression suggests a significant plasticity in the cell line, reflecting changes in cell identity and function that can occur in response to the in vitro environment.

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.