HT-29

The HT-29 cell line, derived from a Grade II human colorectal adenocarcinoma, represents a cornerstone research model in the study of human colon cancers. Derived from a primary tumor in a 44-year-old female in 1964, HT22 cells have been instrumental in advancing our understanding of the adhesion or invasion mechanisms of cancer cells. As a human adenocarcinoma cell line, HT-29 cells exhibit characteristics that closely mimic those of mature intestinal cells, such as enterocytes, underscoring their utility in exploring the dynamics of food digestion and nutrient bioavailability.

HT-29 cells are sensitive to conventional colorectal cancer chemotherapies, including 5-fluorouracil and oxaliplatin. This sensitivity, coupled with their ability to express differentiation pathways under specific conditions, such as glucose deprivation or treatment with inducers like butyrate, makes them an invaluable model for investigating the molecular mechanisms underlying cell differentiation and cancer progression.

Moreover, HT-29 cells have been utilized as a xenograft tumor model, providing a platform for in vivo studies that mimic the tumor's behavior in the human body. This application allows for the exploration of tumor growth, metastasis, and the efficacy of therapeutic agents in in vivo situations.

In summary, the HT-29 cell line is a pivotal tool in medical and biological research, facilitating a deeper understanding of human colon adenocarcinoma, the molecular basis of cancer cell differentiation, and the development of effective cancer treatments.

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.