WI 38 VA13 subline 2RA Cells
USUSD$395.00*
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).
一般資訊
| 說明 | The WI-38 VA13 subline 2RA, derived from the historic WI-38 cell line originally sourced from the lung tissue of a 3-month-old fetus, represents a key advancement in cell culture technology. The original WI-38 cell line was crucial in developing vaccines for numerous viral diseases, such as measles, mumps, rubella, and hepatitis A. The VA13 subline 2RA is an immortalized variant of this cell line, achieved through transformation with Simian Virus 40 (SV40), a practice common in the development of immortal cell lines which allows for indefinite cell replication beyond the standard senescence point of about 50 population doublings. The incorporation of SV40 into the WI-38 cells to create the VA13 subline 2RA extends the cells' lifespan, providing a more durable model for long-term experiments. This transformation maintains the fundamental properties of the original diploid cells but alters their lifecycle and growth patterns, enabling sustained growth and facilitating extensive studies that were not possible with the finite lifespan of the parent cell line. This makes the VA13 subline particularly useful in ongoing and extensive research areas, including virology, pharmacology, and genetic research, where extended observation periods are necessary. |
|---|---|
| 生物體 | Human |
| 組織 | Lung |
| 同義詞 | WI 38 VA-13 subline 2RA, WI 38VA13 subline 2RA, WI-38 VA13 sub 2 RA, WI38-VA13 subline 2RA, WI38 VA13/2RA, WI38VA13/2RA, VA13 2RA, WI-38 VA13, WI 38 VA 13, WI38-VA13, WI38/VA13, WI38VA13, VA-13, VA13, AG07217, AG7217 |
特徵
| 年齡 | 3 months gestation |
|---|---|
| 性別 | Female |
| 族裔 | Caucasian |
| 形態學 | Epithelial-like |
| 細胞類型 | Fibroblast |
| 生長特性 | Adherent |
監管數據
| 引用 | WI 38 VA13 subline 2RA (Cytion catalog number 300421) |
|---|---|
| 生物安全等級 | 2 |
| NCBI_TaxID | 9606 |
| Cellosaurus 編號 | CVCL_2759 |
生物分子資料
| 同工酶 | G6PD, B |
|---|---|
| 病毒 | Contains Papovavirus |
| 對病毒的易感性 | Herpes simplex, vesicular stomatitis (Indiana), poliovirus 2 |
| 逆轉錄酶 | Negative |
| 核型分析 | Hyperdiploid, Modal number: 73-78 |
處理方式
| 培養基 | EMEM (MEM Eagle), w: 2 mM L-Glutamine, w: 2.2 g/L NaHCO3, w: EBSS (Cytion article number 820100a) |
|---|---|
| 營養補充品 | Supplement the medium with 10% FBS |
| 解離試劑 | Accutase |
| 傳代培養 | 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. |
| 播種密度 | 1 x 104 cells/cm2 |
| 流體更新 | 1 to 2 times per week |
| 解凍後的恢復 | 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 48 hours. |
| 冷凍培養基 | 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. |
| 細胞解凍與培養 |
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| 培養環境 | 37°C, 5% CO2, humidified atmosphere. |
| 運送條款 | 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. |
| 儲存條件 | 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. |
品質控制與分子分析
| 不孕症 | 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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分析證明書 (CoA)
| 批次編號 | 證書類型 | 日期 | 型號 |
|---|---|---|---|
| 300421-050523 | 分析證明書 | 23. May. 2025 | 300421 |
| 300421-300525 | 分析證明書 | 18. Aug. 2025 | 300421 |