ME-180 Cells

Categories: Reproductive system cancer cell lines Description: The ME-180 cell line is an epithelial cell line established from a highly invasive squamous cell carcinoma, originally isolated from the omental metastasis of a cervical carcinoma in a 66-year-old White female patient. The carcinoma was characterized by irregular cell clusters with no significant keratinization and minimal necrosis. This cell line is particularly significant for cancer research, especially in studies involving cervical cancer and other forms of squamous cell carcinoma, due to its origin and aggressive nature. ME-180 cells are tumorigenic and have been shown to form well-differentiated epidermoid carcinomas when implanted in nude mice. ME-180 cells have several unique properties, including a heteroploid karyotype with a subtriploid mode, indicating an unstable chromosomal arrangement. The cells exhibit typical epithelial morphology with numerous desmosomes and tonofibrils, and they do not exhibit contact inhibition, often leading to layered growth in culture. The cell line's growth is inhibited by tumor necrosis factor alpha (TNF alpha), making it useful for studies investigating the effects of inflammatory cytokines on tumor cells. Additionally, ME-180 cells contain human papillomavirus (HPV) DNA, with a higher homology to HPV-68 compared to HPV-18, which could be relevant for studies on HPV-related carcinogenesis. ME-180 cells are also valuable in infectious disease research due to their sensitivity to various viruses. The cell line has been used to study the interaction with several viruses, including influenza and myxoviruses. ME-180 cells have shown the ability to form persistent infections with some myxoviruses, making them a useful model for studying viral latency and the long-term effects of viral infection on cancer cells. The combination of its cancerous origin, viral susceptibility, and specific growth characteristics make ME-180 a versatile tool in both oncology and virology research. Organism: Human Tissue: Uterus, Cervix Disease: Epidermoid Carcinoma Metastatic Site: Omentum Synonyms: Me-180, ME 180, ME180 Age: 66 years Gender: Female Ethnicity: Caucasian Morphology: Epithelial-like Cell Type: Epithelial Growth Properties: Adherent Citation: ME-180 (Cytion catalog number 300196) Biosafety Level: 2 Ncbi_ Taxid: 9606.0 Cellosaurus Accession: CVCL_1401 Viruses: HPV68 positive Culture Medium: McCoys 5a, w: 3.0 g/L Glucose, w: stable Glutamine, w: 2.0 mM Sodium pyruvate, w: 2.2 g/L NaHCO3 (Cytion article number 820200a) 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. Seeding Density: 1 x 104 cells/cm2 Fluid Renewal: 2 to 3 times per week Post Thaw Recovery: After thawing, plate the cells at 5 x 104 cells/cm2 and allow the cells to recover from the freezing process and to adhere for at least 24 hours. 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. 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. 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. Safety Precautions: When planning to store a cryovial in liquid nitrogen for future thawing, it is mandatory to adhere to stringent safety measures. Appropriate protective gloves and clothing are essential, and the use of a face mask or safety goggles is required during the transfer of frozen samples to or from the liquid nitrogen tank. This is to mitigate the risk of injury from potential cryovial explosions upon removal, which can result in the projection of sharp fragments. Warranty: We stand by the promise of delivering products with high cell viability and robust culture performance. To achieve the best results, please make sure you follow the storage and culture instructions detailed in the product information sheet closely. Your adherence to these guidelines is key to success. Subject To Material Transfer Agreements: If you intend to use Cytion cell lines solely for internal research at a single research site, please complete and sign our Material Transfer Agreement (MTA) and submit it along with your order.For any commercial applications - including but not limited to fee-for-service work, quality control testing, product release, diagnostic use, or regulatory studies - please complete the Intended Use Form so we can prepare a suitable agreement tailored to your project.Please note: The MTA applies only to certain cell lines. If this notice and the MTA document appear on a product page, the agreement is applicable. For cell lines not covered by the MTA, no reference to the agreement will be shown. The MTA is not valid for customers in the Americas, China, or Taiwan. Please contact our U.S. entity to receive the appropriate agreement. Required Product 1: 820200a Required Product 3: 860015.0 Required Product 4: 830100.0