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The AT-1 cell line is a subclone of the parental R3327 rat prostate adenocarcinoma cell line. This particular cell line was derived from the Dunning model, which is a well-established model used to study prostate cancer. The AT-1 subclone is characterized by its relatively slow growth rate and low metastatic potential compared to other subclones derived from the same tumor, such as the MatLyLu (high metastatic potential) and AT-2 (moderate metastatic potential) cell lines. This makes the AT-1 cell line particularly useful for studies focused on the biology of non-metastatic or minimally invasive tumors.
In research settings, the AT-1 cell line has been utilized extensively to investigate the mechanisms of prostate cancer progression and to assess the efficacy of therapeutic agents. The cells generally exhibit a cuboidal morphology and are adherent. They have been shown to respond to hormonal manipulations, which mimics the hormonal responses seen in clinical prostate cancer. Studies using the AT-1 cell line have contributed to a better understanding of the interactions between tumor cells and the microenvironment, angiogenesis, and the molecular pathways involved in cancer progression. Importantly, the AT-1 cell line has been a valuable tool in the development of therapeutic strategies that are less focused on metastasis and more on primary tumor growth and local invasion.
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Tumorigenic: Yes, in rat and nude mice
- cultureMedium: RPMI 1640, w: 2.0 mM stable Glutamine, w: 2.0 g/L NaHCO3 (Cytion article number 820700a)
- supplements: Supplement the medium with 10% FBS
- dissociationReagent: Accutase
- subculturing: Remove the old medium from the adherent cells and wash them with PBS that lacks calcium and magnesium. For T25 flasks, use 3-5 ml of PBS, and for T75 flasks, use 5-10 ml. Then, cover the cells completely with Accutase, using 1-2 ml for T25 flasks and 2.5 ml for T75 flasks. Let the cells incubate at room temperature for 8-10 minutes to detach them. After incubation, gently mix the cells with 10 ml of medium to resuspend them, then centrifuge at 300xg for 3 minutes. Discard the supernatant, resuspend the cells in fresh medium, and transfer them into new flasks that already contain fresh medium.
- seedingDensity: 1 x 104 cells/cm2
- fluidRenewal: 2 to 3 times per week
- postThawRecovery: After thawing, plate the cells at 4 x 104 cells/cm2 and allow the cells to recover from the freezing process and to adhere for at least 48 hours.
- freezeMedium: As a cryopreservation medium, use complete growth medium (including FBS) + 10% DMSO for adequate post-thaw viability, or CM-1 (Cytion catalog number 800100), which includes optimized osmoprotectants and metabolic stabilizers to enhance recovery and reduce cryo-induced stress.
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