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LS 174T Cell Line

General Information
OrganismHomo sapiens, human
Cell Line DescriptionThe LS 174T cell line was isolated from a 58-year-old Caucasian female patient with Duke's B colorectal adenocarcinoma. LS 174T cells are frequently used in biomedical research related to colon cancer and are positive for the expression of various oncogenes, including c-myc, N-myc, H-ras, N-ras, Myb, and fos. In addition, the LS 174T cell line has abundant microvilli and vacuoles and produces carcinoembryonic antigen (CEA), interleukin 10 (IL-10), interleukin 6 (IL-6), and mucins. LS 174T cells have been an important tool in colorectal cancer research and have provided valuable insights into the molecular mechanisms of colorectal cancer development and progression, as well as potential therapeutic targets for the treatment of this disease.
TissueLarge intestine; Colon
DiseaseAdenocarcinoma; Colorectal; Dukes' type B
MorphologyEpithelial
GenderFemale
Age58 years
Product FormatFrozen
Growth ModeAdherent
Biosafety Level1
Biosafety classification is based on U.S. Public Health Service Guidelines, it is the responsibility of the customer to ensure that their facilities comply with biosafety regulations for their own country.
Applications1. Cancer research
2. Drug development and screening
3. Gene expression studies
4. Immunotherapy research
5. Signal transduction research
6. Biomarker identification
7. In vitro models
Shipped InDry ice
Storage Temperature−196°C
Additional InfoThe LS 174T cell line was used to create the CDX (cell line derived xenograft) LS174T xenograft mouse model. The LS 174T xenograft model can be used to study monotherapies (e.g. RNAi specific siRNA/miRNA) or to determine synergistic effects due to drug resistance (i.e. bevacizumab and immunomodulatory oligonucleotide TLR9 activation).
Characteristics
Karyotype45,X; one X chromosome missing; no other chromosomal aberrations
Protein ExpressionColon Antigen 3 +, CEA +, p53 -, GFAP -, mRNA expression +
Oncogenesmyc +, myb + , fos +, p53 +, ras +, sis -, abl -, ros -, src -
TumorigenicYes, in nude mice.
Mycoplasma TestNegative
Culture Conditions and Handling
SubculturingVolumes given are for 75 cm2 flasks. For culture vessels of other sizes, increase or decrease the amount of dissociation medium required proportionally.
1. Remove and discard the medium.
2. Rinse the cell layer briefly with 0.25% (w/v) trypsin-0.53 mM EDTA solution to remove all traces of serum containing trypsin inhibitors.
3. Add 2.0 to 3.0 mL of trypsin-EDTA solution to the flask and observe the cells under an inverted microscope until the cell layer is dispersed (usually within 5 to 15 minutes). Note: To avoid clumping, do not agitate the cells by tapping or shaking the flask while waiting for the cells to detach. Cells that are difficult to detach can be placed at 37°C to facilitate dispersion.
4. Add 6.0 to 8.0 mL of complete growth medium and gently pipette out the cells.
5. Add an appropriate aliquot of the cell suspension to a new culture vessel.
6. Incubate the culture at 37°C.
Medium Renewal2 to 3 times per week
Subcultivation RatioThe ratio of 1:2 to 1:4 is recommended.
Culture MediumEMEM (EBSS) + 2mM Glutamine + 1% Non Essential Amino Acids (NEAA) + 10% Foetal Bovine Serum (FBS).
Culture ConditionsAtmosphere: Air, 95%; CO2, 5%; Temperature: 37°C
CryopreservationComplete growth medium supplemented with 5% (v/v) DMSO

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* For research use only. Not intended for any clinical use.
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