Walker-256 (LLC-WRC 256) Cells
















General information
Description | The Walker-256 cell line is a rat carcinoma cell line that is widely used in cancer research, specifically in the study of tumor biology and chemotherapy. Originating from a mammary gland carcinoma of a rat, this cell line is particularly noted for its aggressive metastatic behavior, making it a valuable model for studying cancer progression and metastasis. It has been used extensively to investigate the mechanisms of tumor growth and the efficacy of anti-cancer drugs in vivo. Walker-256 cells are adaptable to various environments, allowing them to be grown in a number of different animal models, which helps in the study of cancer biology in a systemic context. This cell line is instrumental in pharmacological studies, particularly those related to the development and testing of new chemotherapy agents. Researchers use Walker-256 to assess drug-induced cytotoxicity and to explore the potential mechanisms of action of novel therapeutic compounds. Its robust use in research provides critical insights into the dynamics of tumor growth and the systemic effects of tumors on host physiology. |
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Organism | Rat |
Tissue | Mammary gland |
Disease | Adenocarcinoma of the rat mammary gland |
Synonyms | LLC-WRC 256, LLC-WRC256, Walker/LLC-WRC 256, Walker-Ca.256, Walker 256, W256, Lilly Laboratories Culture-Walker Rat Culture 256 |
Characteristics
Age | Unspecified |
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Gender | Female |
Growth properties | Suspension |
Identifiers / Biosafety / Citation
Citation | Walker-256 (Cytion catalog number 500375) |
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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, 10 Âmicrogram/mL Insulin, add 2.5 g/L glucose and 10 mM HEPES |
Subculturing | Maintain cultures by periodically adding or replacing the medium. Initiate cultures with a density of 2 x 10^5 cells/ml and keep the cell concentration within the range of 1 x 10^5 to 1 x 10^6 cells/ml for optimal growth. |
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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STR profile |
Rat_D1Wox31: 104/108
Rat_D2Wox37: 150
Rat_D19Wox11: 228
Rat_D10Wox8: 266
Rat_D4Wox7: 145
Rat_D2Wox27: 211/215
Rat_D5Rat33: 102/120/138
Rat_D10Wox11: 165
Rat_D1Wox23: 210/214
Rat_D12Wox1: 402/406
Rat_D6Wox2: 104/108/124
Rat_D8Wox7: 185
Rat_D6Cebr1: 223/225/229
SRY: X
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Benötigte Produkte
This unique formulation combines Dulbecco's Modified Eagle Medium (DMEM) and Ham's F-12 (Ham's Nutrient Mixture F-12) in a precise 1:1 ratio. The addition of L-glutamine further enhances its composition.
DMEM, derived from Eagle's Minimal Essential Medium (EMEM), offers an increased concentration of amino acids and vitamins compared to its predecessor. In contrast, Ham's F-12 is based on Ham's F-10 medium, providing a complementary set of essential components.
To support optimal cell growth, it is common practice to supplement DMEM:Ham's F12 with FBS at a typical concentration of 5-10%. This addition is necessary as the medium lacks growth hormones, lipids, and proteins crucial for cellular development.
DMEM:Ham's F12 incorporates a pH buffer system and is often supplemented with phenol red, a pH indicator. Cultured cells in DMEM:Ham's F12, or any medium utilizing the bicarbonate buffer system, require a controlled CO2 environment of 5-10% to maintain appropriate pH levels.
Quality Control
Sterile-filtered
Storage and Shelf Life
Store at +2°C to +8°C, protected from light.
Once opened, store at 4°C and use within 6–8 weeks.
Shipping Conditions
Ambient temperature
Maintenance
Keep refrigerated at +2°C to +8°C in the dark. Avoid freezing and frequent warming to +37°C, as it reduces product quality.
Do not heat the medium beyond 37°C or use uncontrolled heat sources such as microwave appliances.
If only part of the medium is to be used, remove the required amount and warm it to room temperature before use.
Composition
Category
Components
Concentration (mg/L)
Amino Acids
Glycine
18.75
L-Alanine
4.45
L-Arginine HCl
147.50
L-Asparagine H₂O
7.50
L-Aspartic Acid
6.65
L-Cysteine HCl H₂O
17.56
L-Cystine 2 HCl
31.29
L-Glutamic Acid
7.35
L-Glutamine
365.00
L-Histidine HCl H₂O
31.48
L-Isoleucine
54.47
L-Leucine
59.05
L-Lysine HCl
91.25
L-Methionine
17.24
L-Phenylalanine
35.48
L-Proline
17.25
L-Serine
26.25
L-Threonine
53.45
L-Tryptophan
9.02
L-Tyrosine Disodium Salt
48.10
L-Valine
52.85
Vitamins
D-Biotin
0.0035
Choline Chloride
8.98
D-Calcium Pantothenate
2.24
Folic Acid
2.66
myo-Inositol
12.60
Nicotinamide
2.02
Pyridoxine HCl
0.031
Pyridoxal HCl
2.00
Riboflavin
0.219
Thiamine HCl
2.17
Vitamin B12
0.68
Inorganic Salts
CaCl₂ 2 H₂O
154.50
CuSO₄ 5 H₂O
0.0013
Fe(NO₃)₃ 9 H₂O
0.05
FeSO₄ 7 H₂O
0.417
KCl
311.80
MgCl₂ 6 H₂O
61.20
MgSO₄
48.84
NaCl
6996.00
NaHCO₃
1200.00
Na₂HPO₄
71.02
NaH₂PO₄
54.30
ZnSO₄ 7 H₂O
0.432
Other Components
D-Glucose
3151.00
Hypoxanthine
2.40
HEPES
3574.50
Linoleic Acid
0.042
Lipoic Acid
0.105
Phenol Red Sodium Salt
8.63
Putrescine 2 HCl
0.081
Sodium Pyruvate
55.00
Thymidine
0.365