SW-403 Cells

Name: CLS Cell Lines Service GmbH
Address: Dr.-Eckener-Straße 8, Eppelheim, 69214, DE
Telephone: +496221405780
Price range: €€€

CAD$545.10*

Products are shipped frozen on dry ice in cryotubes. Each cryotube typically contains 3 × 10⁶ cells for adherent lines or 5 × 10⁶ cells for suspension lines (refer to the batch CoA for details).

Prices excl. taxes plus shipping costs

cryovial

Product number: 300350

Safety data sheet

Product sheet

Certificate of Analysis (CoA)

Description	SW-403 is a human colorectal adenocarcinoma cell line derived from a poorly differentiated tumor. It has been widely used in research on colorectal cancer, particularly in studies investigating the effects of gastrointestinal hormones on tumor growth. Notably, SW-403 cells have been shown to respond to gastrin and pentagastrin, two gastrointestinal hormones, by increasing their proliferation. These hormones stimulate growth through the gastrin receptor, which is expressed in some colorectal cancers. In contrast, treatment with proglumide, a gastrin receptor antagonist, inhibits the growth of SW-403 cells both in vitro and in vivo, suggesting that gastrin may play a role in promoting tumor growth in this cell line. In addition to hormone studies, SW-403 cells have been used to investigate the effects of various chemotherapy agents, such as ciprofloxacin, on cancer cell proliferation and apoptosis. Ciprofloxacin has been shown to inhibit DNA synthesis in SW-403 cells and induce apoptosis in a dose-dependent manner. This process involves mitochondrial membrane breakdown, activation of caspases 3, 8, and 9, and upregulation of pro-apoptotic proteins like Bax. The ability of ciprofloxacin to trigger apoptosis in SW-403 cells suggests its potential as an adjunctive therapeutic agent in colorectal cancer treatment. Overall, SW-403 serves as a useful model for exploring the molecular mechanisms underlying colorectal cancer growth, hormone sensitivity, and chemotherapy-induced apoptosis. Its response to gastrointestinal hormones like gastrin and to chemotherapeutic agents highlights its relevance in both basic cancer biology and drug development research.
Organism	Human
Tissue	Colon
Disease	Adenocarcinoma
Synonyms	SW403, SW 403

Age	51 years
Gender	Female
Ethnicity	Caucasian
Morphology	Epithelial-like
Growth properties	Adherent

Citation	SW-403 (Cytion catalog number 300350)
Biosafety level	1
NCBI_TaxID	9606
CellosaurusAccession	CVCL_0545

Antigen expression	Colon antigen 3, positive. The cells are positive for keratin by immunoperoxidase staining. CSAp negative (CSAp-).
Isoenzymes	G6PD, B, PGM1, 1, PGM3, 1-2, 6PGD, A, ES-D, 1, PEP-D, 1
Tumorigenic	Yes, in nude mice
Reverse transcriptase	Negative
Products	Carcinoembryonic antigen (CEA) 155 ng/10 exp6 cells/10 days, keratin
Mutational profile	SW-403 cells carry a heterozygous Kras mutation in codon12: GGT>GTT

Culture Medium	Ham's F12, w: 1.0 mM stable Glutamine, w: 1.0 mM Sodium pyruvate, w: 1.1 g/L NaHCO3 (Cytion article number 820600a)
Supplements	Supplement the medium with 10% FBS
Dissociation Reagent	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.
Fluid renewal	1 to 2 times per week
Freeze medium	As a cryopreservation medium, we 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.
Thawing and Culturing Cells	Confirm that the vial remains deeply frozen upon delivery, as cells are shipped on dry ice to maintain optimal temperatures during transit. Upon receipt, either store the cryovial immediately at temperatures below -150°C to ensure the preservation of cellular integrity, or proceed to step 3 if immediate culturing is required. For immediate culturing, swiftly thaw the vial by immersing it in a 37°C water bath with clean water and an antimicrobial agent, agitating gently for 40-60 seconds until a small ice clump remains. Perform all subsequent steps under sterile conditions in a flow hood, disinfecting the cryovial with 70% ethanol before opening. Carefully open the disinfected vial and transfer the cell suspension into a 15 ml centrifuge tube containing 8 ml of room-temperature culture medium, mixing gently. Centrifuge the mixture at 300 x g for 3 minutes to separate the cells and carefully discard the supernatant containing residual freezing medium. Gently resuspend the cell pellet in 10 ml of fresh culture medium. For adherent cells, divide the suspension between two T25 culture flasks; for suspension cultures, transfer all the medium into one T25 flask to promote effective cell interaction and growth. Adhere to established subculture protocols for continued growth and maintenance of the cell line, ensuring reliable experimental outcomes.
Incubation Atmosphere	37°C, 5% CO₂, humidified atmosphere.
Shipping Conditions	Cryopreserved cell lines are shipped on dry ice in validated, insulated packaging with sufficient refrigerant to maintain approximately −78 °C throughout transit. On receipt, inspect the container immediately and transfer vials without delay to appropriate storage.
Storage Conditions	For long-term preservation, place vials in vapor-phase liquid nitrogen at about −150 to −196 °C. Storage at −80 °C is acceptable only as a short interim step before transfer to liquid nitrogen.

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.

Lot Number	Certificate Type	Date	Catalog Number
300350-150925	Certificate of Analysis	05. Dec. 2025	300350
300350-413	Certificate of Analysis	26. May. 2025	300350

SW-403 Cells

General information

Characteristics

Regulatory Data

Biomolecular Data

Handling

Quality Control & Molecular Analysis

Certificate of Analysis (CoA)

Organism	Human
Tissue	Colon
Disease	Adenocarcinoma, Grade IV, Dukes' type B.

Organism	Human
Tissue	Urinary bladder
Disease	Bladder carcinoma