WI-38 Cells

545,10 CAD$*

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).

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Numéro de produit : 300428

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Description	Please note: The WI-38 cell line is not available for purchase anymore. Our stock reached senescence and therefore cannot be sold anymore. However, we continue to offer an immortalized variant of this cell line, WI 38VA13 Subline 2RA (Catalog No. 300421). The WI-38 cell line, derived from the fetal lung tissue of a 3-month-old fetus obtained from an elective abortion in Sweden in 1962, represents a landmark in medical science, particularly in vaccine production. WI-38 cells have played a crucial role in the development of vaccines for a wide array of virus-based infectious diseases, including poliomyelitis, measles, mumps, rubella, varicella, herpes zoster, adenovirus, rabies, and Hepatitis A, thereby significantly reducing morbidity associated with these conditions. Notably, WI-38 cells have been utilized in the production of several key vaccines, such as Merck's rubella and Hepatitis A vaccines, Sanofi Pasteur's Imovax rabies vaccine, and the adenovirus vaccine used by the U.S. military, highlighting their essential role in public health. These cells, characterized by their fibroblast cell type and excellent biocompatibility, offer an optimal environment for the culture of viruses and the production of human virus vaccines. As a human diploid cell line with a finite lifespan of about 50 population doublings and a doubling time of roughly 24 hours, WI-38 cells have been used extensively in biological research, including the study of cellular aging, cancer, and genetics. WI-38 cells further have been instrumental in the field of virology, particularly in supporting the cultivation and study of human viruses. These cells provide a conducive environment for growing viruses extracted from clinical specimens, which is essential for the development of vaccines and for advancing our understanding of viral behaviors and genetics. In summary, WI-38 cells, with their extensive applications in vaccine production remain a cornerstone in the field of virology. Their contribution to the development of cell-derived vaccines and the advancement of primary cells in scientific research underscores their invaluable role in enhancing human health worldwide.
Organisme	Human
Tissu	Lung
Site métastatique	Not applicable (normal fetal lung fibroblast line; finite passage)
Applications	Vaccine virus production (poliomyelitis, measles, mumps, rubella, varicella, hepatitis A, rabies); virology host cell; cellular aging and senescence research; diploid fibroblast biology; genotoxicity testing
Synonymes	Wi-38, WI38, Wistar Institute-38, AG06814E, AG06814G, AG06814H, AG06814-J, AG06814J, AG06814-M, AG06814-N

Âge	3 months gestation
Genre	Female
Origine ethnique	Caucasian
Morphologie	Epithelial-like
Type de cellule	Fibroblast
Propriétés de croissance	Adherent

Référence	WI 38 (Cytion catalog number 300428)
Niveau de biosécurité	1
NCBI_Numéro d'identification fiscale	9606
Cellosaurus - Numéro d'enregistrement	CVCL_0579
Statut OGM	No genetic modification; normal diploid human fibroblast with finite replicative lifespan (~50 population doublings)

Milieu de culture	EMEM (MEM Eagle), w: 2 mM L-Glutamine, w: 2.2 g/L NaHCO3, w: EBSS (Cytion article number 820100a)
Suppléments	Supplement the medium with 10% FBS and 1% NEAA
Réactif de dissociation	Accutase
Repiquage	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.
Rapport de fractionnement	1 to 5
Densité de semis	3 to 5 × 10³ cells/cm²
Renouvellement des fluides	Every 2 to 3 days
Milieu de congélation	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.
Décongélation et culture des cellules	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.
Atmosphère d'incubation	37°C, 5% CO₂, humidified atmosphere.
Conditions d'expédition	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.
Conditions d'entreposage	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.

Stérilité	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.

Please note: The WI-38 cell line is not available for purchase anymore. Our stock reached senescence and therefore cannot be sold anymore. However, we continue to offer an immortalized variant of this cell line, WI 38VA13 Subline 2RA (Catalog No. 300421).

WI-38 Cells

WI-38 cells and their role in vaccine production

Properties of the WI-38 cell line

Specifications

Genetics

WI-38 cell culture handling procedures

Quality control