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AtT-20

CCL-89

AtT-20 is a cell with small rounded cells morphology that was isolated in 1966 from the pituitary gland of a mouse with a tumor. This cell line was deposited by G Sato.
Product category
Animal cells
Organism
Mus musculus, mouse
Classification
Eukaryota, Animalia, Metazoa, Chordata, Vertebrata, Tetrapod
Morphology
small rounded cells
Tissue
Pituitary gland
Disease
Tumor
Applications
3D cell culture
Product format
Frozen
Storage conditions
Vapor phase of liquid nitrogen

Documentation

ATCC determines the biosafety level of a material based on our risk assessment as guided by the current edition of Biosafety in Microbiological and Biomedical Laboratories (BMBL), U.S. Department of Health and Human Services. It is your responsibility to understand the hazards associated with the material per your organization’s policies and procedures as well as any other applicable regulations as enforced by your local or national agencies.

ATCC highly recommends that appropriate personal protective equipment is always used when handling vials. For cultures that require storage in liquid nitrogen, it is important to note that some vials may leak when submersed in liquid nitrogen and will slowly fill with liquid nitrogen. Upon thawing, the conversion of the liquid nitrogen back to its gas phase may result in the vial exploding or blowing off its cap with dangerous force creating flying debris. Unless necessary, ATCC recommends that these cultures be stored in the vapor phase of liquid nitrogen rather than submersed in liquid nitrogen.

Detailed product information

General

Specific applications
This cell line is a suitable transfection host.

Characteristics

Passage history
This clone has now been carried in culture without alternate animal passage.
Derivation
Clone AtT-20, an ACTH secreting cell line, was cloned in October, 1966, by G. Sato and associates from earlier cultures established after alternate passage of mouse pituitary tumor cells as tumors in animals and in cell culture. (The cells were cultured in Ham's F10 medium, 82.5%; horse serum, 15%; FBS, 2.5%). The mouse pituitary tumor was originally established in LAF1 mice by J. Furth, et al. This clone has now been carried in culture without alternate animal passage.
Strain
LAF1
Virus susceptibility
Vesicular stomatitis virus
Human poliovirus 1
Genes expressed
adrenocorticotropic hormone (ACTH)
Comments
Tested and found negative for ectromelia virus (mousepox).

Handling information

Unpacking and storage instructions
  1. Check all containers for leakage or breakage.
  2. Remove the frozen cells from the dry ice packaging and immediately place the cells at a temperature below ­-130°C, preferably in liquid nitrogen vapor, until ready for use.
Complete medium
The base medium for this cell line is ATCC-formulated F-12K Medium, Catalog No. 30-2004. To make the complete growth medium, add the following components to the base medium: fetal bovine serum to a final concentration of 2.5%; horse serum to a final concentration of 15%.
Temperature
37°C
Atmosphere
95% Air, 5% CO2
Handling procedure

To insure the highest level of viability, thaw the vial and initiate the culture as soon as possible upon receipt. If upon arrival, continued storage of the frozen culture is necessary, it should be stored in liquid nitrogen vapor phase and not at -70°C.  Storage at -70°C will result in loss of viability.

  1. Thaw the vial by gentle agitation in a 37°C water bath. To reduce the possibility of contamination, keep the O-ring and cap out of the water.  Thawing should be rapid (approximately 2 minutes).
  2. Remove the vial from the water bath as soon as the contents are thawed, and decontaminate by dipping in or spraying with 70% ethanol. All of the operations from this point on should be carried out under strict aseptic conditions.
  3. Transfer the vial contents to a 75 cm2 tissue culture flask and dilute with the recommended complete culture medium (see the specific batch information for the recommended dilution ratio).   It is important to avoid excessive alkalinity of the medium during recovery of the cells.  It is suggested that, prior to the addition of the vial contents, the culture vessel containing the growth medium be placed into the incubator for at least 15 minutes to allow the medium to reach its normal pH (7.0 to 7.6).
  4. Incubate the culture at 37°C in a suitable incubator.  A 5% CO2 in air atmosphere is recommended if using the medium described on this product sheet.

If it is desired that the cryoprotective agent be removed immediately, or that a more concentrated cell suspension be obtained, centrifuge the cell suspension at approximately 125 x g for 5 to 10 minutes.  Discard the supernatant and resuspend the cells with fresh growth medium at the dilution ratio recommended in the specific batch information.

Subculturing procedure
Allow clusters to settle and remove all but 5 to 10 mL of medium. Gently transfer the clusters to new flasks and add fresh medium. Proliferation is enhanced by incubation on a shaking platform.
Subcultivation Ratio: A subcultivation ratio of 1:2 is recommended
Note: The cells do not attach but aggregate to form clusters; the clusters are viable.
Reagents for cryopreservation
Complete growth medium supplemented with 10 % (v/v) DMSO (ATCC 4-X)

Quality control specifications

Mycoplasma contamination
Not detected

History

Deposited as
Mus musculus
Depositors
G Sato
Year of origin
1966

Legal disclaimers

Intended use
This product is intended for laboratory research use only. It is not intended for any animal or human therapeutic use, any human or animal consumption, or any diagnostic use.
Warranty

The product is provided 'AS IS' and the viability of ATCC® products is warranted for 30 days from the date of shipment, provided that the customer has stored and handled the product according to the information included on the product information sheet, website, and Certificate of Analysis. For living cultures, ATCC lists the media formulation and reagents that have been found to be effective for the product. While other unspecified media and reagents may also produce satisfactory results, a change in the ATCC and/or depositor-recommended protocols may affect the recovery, growth, and/or function of the product. If an alternative medium formulation or reagent is used, the ATCC warranty for viability is no longer valid.  Except as expressly set forth herein, no other warranties of any kind are provided, express or implied, including, but not limited to, any implied warranties of merchantability, fitness for a particular purpose, manufacture according to cGMP standards, typicality, safety, accuracy, and/or noninfringement.

Disclaimers

This product is intended for laboratory research use only. It is not intended for any animal or human therapeutic use, any human or animal consumption, or any diagnostic use. Any proposed commercial use is prohibited without a license from ATCC.

While ATCC uses reasonable efforts to include accurate and up-to-date information on this product sheet, ATCC makes no warranties or representations as to its accuracy. Citations from scientific literature and patents are provided for informational purposes only. ATCC does not warrant that such information has been confirmed to be accurate or complete and the customer bears the sole responsibility of confirming the accuracy and completeness of any such information.

This product is sent on the condition that the customer is responsible for and assumes all risk and responsibility in connection with the receipt, handling, storage, disposal, and use of the ATCC product including without limitation taking all appropriate safety and handling precautions to minimize health or environmental risk. As a condition of receiving the material, the customer agrees that any activity undertaken with the ATCC product and any progeny or modifications will be conducted in compliance with all applicable laws, regulations, and guidelines. This product is provided 'AS IS' with no representations or warranties whatsoever except as expressly set forth herein and in no event shall ATCC, its parents, subsidiaries, directors, officers, agents, employees, assigns, successors, and affiliates be liable for indirect, special, incidental, or consequential damages of any kind in connection with or arising out of the customer's use of the product. While reasonable effort is made to ensure authenticity and reliability of materials on deposit, ATCC is not liable for damages arising from the misidentification or misrepresentation of such materials.

Please see the material transfer agreement (MTA) for further details regarding the use of this product. The MTA is available at www.atcc.org.

References

Curated Citations

Buonassisi V, et al. Hormone-producing cultures of adrenal and pituitary tumor origin. Proc. Natl. Acad. Sci. USA 48: 1184-1190, 1962. PubMed: 13874682

Furth J, et al. ACTH secreting transplantable pituitary tumors. Proc. Soc. Exp. Biol. Med. 84: 253-254, 1953. PubMed: 13121002

Tabernero C, et al. Identification of an RNA sequence within an intracisternal-A particle element able to replace Rev-mediated posttranscriptional regulation of human immunodeficiency virus type 1. J. Virol. 71: 95-101, 1997. PubMed: 8985327

Gamby C, et al. Growth-associated protein-43 (GAP-43) facilitates peptide hormone secretion in mouse anterior pituitary AtT-20 cells. J. Biol. Chem. 271: 10023-10028, 1996. PubMed: 8626556

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