MC38

The MC38 cell line is a murine model extensively utilized in colorectal carcinoma research. Originating from a colon adenocarcinoma in a C57BL/6 mouse, these cells exhibit a high mutational rate, particularly in the mutanome and neoantigen expression, making them highly sensitive to immune checkpoint inhibitor therapy. Their responsiveness to endogenous CD8+ T cell attacks against neoantigens underscores their value in studying immune interactions within tumor environments, positioning the MC38 model as a pivotal immunoresponsive murine tumor model.

MC38 cells form tumors and metastases in syngeneic C57BL6 murine hosts or immunocompromised mice. The MC38 colon adenocarcinoma model, especially when used in orthotopic mouse models, is recognized for its immunological responsiveness, rendering it an effective platform for evaluating immunotherapies, including radiation, checkpoint inhibitors, and other novel treatments.

MC38 cells express colon markers such as claudin-1 and SATB2, critical for investigating the genomic and epigenomic underpinnings of colorectal adenocarcinoma and for identifying potential treatments. The immunological characteristics of the MC38 xenograft model make it a versatile tool for cancer research, especially in the context of colorectal adenocarcinoma. The MC38 colon carcinoma model, with its high mutanome and neoantigen load, serves as an exemplary immunoresponsive murine model, facilitating the exploration of the complex dynamics between colorectal tumor cell lines and the host's immune system.

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.