LA795 Cells
















General information
Description | The LA795 cell line, derived from a lung adenocarcinoma, has been extensively studied for its chromosomal patterns using G and C banding techniques at passages 60 and 100. The chromosomal analysis revealed model chromosome numbers 69, 68, 67, and 66. Detailed G banding analysis of 46 cells across these four clones indicated that the chromosome patterns of LA795 are hypotetraploid male cells, closely resembling those observed in cells transplanted into mice. The two primary configurations of the 69 model chromosome, designated 69I and 69II, suggest a progression in chromosomal evolution from 69 to 68, 67, and 66 as identified through karyotype analysis. The karyotype analysis also highlighted a notable pattern in the loss of specific chromosomes, specifically chromosome No. 4 and No. 14, across the various clones. This recurrent chromosomal loss indicates a potential non-random chromosomal aberration associated with mouse tumor cells. The findings from these studies provide valuable insights into the chromosomal stability and evolution of the LA795 cell line, offering a deeper understanding of the genetic underpinnings of lung adenocarcinoma and its progression. |
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Organism | Mouse |
Tissue | Lung |
Disease | Adenocarcinoma of the mouse pulmonary system |
Synonyms | LA-795 |
Characteristics
Age | Unspecified |
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Gender | Male |
Growth properties | Adherent |
Identifiers / Biosafety / Citation
Citation | LA795 (Cytion catalog number 300472) |
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Biosafety level | 1 |
Expression / Mutation
Handling
Culture Medium | RPMI 1640, w: 2.0 mM stable Glutamine, w: 2.0 g/L NaHCO3 (Cytion article number 820700a) |
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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. |
Freeze medium | 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. |
Handling of cryopreserved cultures |
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Quality control / Genetic profile / HLA
Sterility | 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. |
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