| Field | Specification |
|---|---|
| Species |
The Calu-6 cell line is a human non-small cell lung carcinoma (NSCLC) cell line derived from the pleural effusion of a 61-year-old male patient. Established in 1975, this cell line has been a critical model in lung cancer research. Calu-6 cells exhibit a distinct epithelial morphology and have been used extensively to study the biology of lung cancer, including mechanisms of metastasis, drug resistance, and the tumor microenvironment. These cells are particularly noted for their ability to form tumors in xenograft models, which makes them highly valuable for in vivo studies of tumor growth and response to therapeutics.
Calu-6 is characterized by a high level of KRAS mutation, common in NSCLC, and provides a relevant model for studying the role of this oncogene in lung cancer. The cell line also displays several cytogenetic anomalies typical of cancer cells, such as complex karyotypes and aneuploidy, which contribute to its use in genetic studies. Research utilizing the Calu-6 cell line has helped in understanding the cellular mechanisms of lung cancer and in the development of therapeutic strategies. Its robust growth in culture and the ability to mimic clinical aspects of lung cancer make it an indispensable resource in oncological research.
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- Protein expression: p53 negative
- Isoenzymes: Me-2, 1, PGM3, 1, PGM1, 2, ES-D, 1, AK-1, 1, GLO-1, 2, G6PD, B, Phenotype Frequency Product: 0.0031
- Tumorigenic: Yes, in nude mice. Forms poorly differentiated carcinoma
- Mutational profile: CaLu-6 cells carry a mutation in KRAS codon 61, c.181C>A p.(Gln61Lys). NRAS of BRAF mutation was not detected.
- Karyotype: The stemline chromosome number is hypotriploid and the 2S component occurred at 5.8%. Modal chromosome number is 59. Fourteen marker chromosomes (constitutive) were common to most S metaphases. No Y chromosome was detected in the QM stained preparation.
- cultureMedium: EMEM (MEM Eagle), w: 2 mM L-Glutamine, w: 2.2 g/L NaHCO3, w: EBSS (Cytion article number 820100a)
- supplements: Supplement the medium with 10% FBS and 1% NEAA
- 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: 2 x 104 cells/cm2 will result in a 90% confluent monolayer in about 4 days
- fluidRenewal: 2 to 3 times per week
- postThawRecovery: After thawing, plate the cells at 5 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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