Calu-3 Cells
Overview of Calu-3 cells
Description | Calu-3 cells are a human epithelial cell line derived from the lung adenocarcinoma of a 25-year-old in 1975. These cells exhibit epithelial morphology and are characterized by their ability to form tight junctions, desmosomes, and microvilli, mirroring the structural features of lung epithelium. Calu 3 cells are particularly noted for their high-level secretion of mucins, which are glycoproteins involved in protecting and lubricating the pulmonary airways, making them a relevant in vitro model for studying airway epithelial biology, including mucin production, secretion, and its regulation. Calu-3 human lung adenocarcinoma cells are used in drug discovery and development, particularly for assessing the absorption, distribution, metabolism, and excretion (ADME) of inhaled pharmaceuticals. Their ability to form a polarized monolayer when cultured on permeable supports makes them suitable for studying drug transport and the effects of drugs on the airway epithelium. Calu 3 cells, derived from human lung cancer cell types, are particularly relevant in the study of airway epithelial cells and their role in respiratory conditions. These cells originate from bronchial submucosal glands and are utilized in cell culture models to mimic the human airway, providing insights into respiratory function, epithelial cell injury, lung injury and the study of dieseases such as cystic fibrosis or SARS. The study of Calu 3 cells and their response to chemotherapeutic agents contributes to the broader field of lung cancer research, offering insights into the efficacy of treatments and the potential for developing more effective therapeutic strategies. |
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Organism | Human |
Tissue | Lung adenocarcinoma |
Disease | Lung adenocarcinoma |
Metastatic site | Pleural effusion |
Synonyms | CaLu-3, CALU-3, Calu 3, Calu3, CALU3 |
Aspects of the epithelial cell line Calu-3
Age | 25 years |
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Gender | Male |
Morphology | Epithelial |
Growth properties | Adherent |
Specifications
Citation | Calu-3 (Cytion catalog number 305032) |
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Biosafety level | 1 |
Genetic profile of Calu-3 lung cells
Protein expression | Blood Type A, Rh+ |
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Antigen expression | Antigen expression: Blood Type A, Rh+ |
Tumorigenic | Yes |
Handling procedures
Culture Medium | EMEM, w: 2 mM L-Glutamine, w: 1.5 g/L NaHCO3, w: EBSS, w: 1 mM Sodium pyruvate, w: NEAA (Cytion article number 820100c) |
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Medium supplements | Supplement the medium with 10% FBS |
Passaging solution | 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. |
Split ratio | 1:2 to 1:4 |
Fluid renewal | 2 to 3 times per week |
Freeze medium | CM-1 (Cytion catalog number 800100) or CM-ACF (Cytion catalog number 806100) |
Handling of cryopreserved cultures | Calu-3 cells are shipped in a deep-frozen state on dry ice. Upon receipt, confirm that the vial remains frozen. For storage, place the cryovial immediately at temperatures below -150 degrees. If you plan to culture the cells immediately, swiftly thaw the vial by shaking it in a 37 degrees water bath with clean water and an antimicrobial agent for 40-60 seconds. Remove the vial once a small ice clump persists, ensuring it remains cold. Proceed with all subsequent steps under aseptic conditions. In a sterile flow hood, disinfect the cryovial with 70% ethanol. Then, gently open the vial and transfer the cell suspension into a 15 ml centrifuge tube pre-filled with 8 ml of room temperature culture medium. Gently mix the cells. For cell separation, centrifuge at 300 x g for 3 minutes and dispose of the supernatant. Skipping centrifugation is optional, although any residual freezing medium should be removed after 24 hours. Resuspend the pellet gently in 10 ml of fresh culture medium and divide between two T25 culture flasks. Follow the subculture protocol for subsequent steps. |
Quality control on human airway cells Calu-3
Sterility | Mycoplasma contamination is rigorously 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. |
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