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UK Health Security Agency

HT2 Clone A5E

HT2 Clone A5E

Catalogue No.

92021401

Cell Line Name

HT2 Clone A5E

Cell Line Description

Derived in 1979 from BALB/c spleen cells activated by sheep erythrocytes in the presence of IL-2, the A5E clone was selected to provide a homogenous population that is highly sensitive to IL-2. This cell line expresses Thy-1 and Lyt markers in addition to high affinity IL-2 receptors. Substantial proliferation is seen in the presence of IL-4 (GM-CSF).

Characteristics

Receptors

Interleukin 2 (IL-2), Interleukin 4 (IL-4)

Tissue of Origin

Blood

Karyotype

Not specified

Applications

IL-2 assays

Disease

None Stated

Culture Conditions

Cell Type

Lymphoblastoid

Subculture Routine

Maintain cultures between 3-9x100,000 cells/ml; 5% CO₂; 37°C. When starting from a frozen ampoule, add thawed cells to a conical based centrifuge tube e.g. 15ml tube. Slowly add 4 ml of culture medium to the tube. Take a sample of the cell suspension, e.g. 200µl, to count the cells. Centrifuge the cell suspension at low speed i.e. 100 - 150 x g for a maximum of 5 minutes. Remove the medium and re-suspend the cell pellet at a density of 3 - 5 x 100,000 cells/ml in fresh medium containing 20% serum. Incubate flask at 37°C; 5% CO₂ and check daily. Keep flask in a vertical position until the cells reach the exponential phase of growth; this can take up to 10 days. Once the culture is established the serum concentration can be reduced to 10%. To keep the cells in exponential growth, maintain cultures between 3-9x100,000 cells/ml. Once the culture is established it can demonstrate rapid growth and may quickly exhaust the medium components and lose viability as a result. We recommend the culture is monitored by cell counting for its growth rate. Fresh IL-2 should be added at each sub-culture.

Culture Medium

RPMI 1640 + 2mM Glutamine + 0.05mM 2-Mercaptoethanol (2ME) + 100-200 IU/ml IL-2 + 10% Foetal Bovine Serum (FBS).

Growth Mode

Suspension

Additional Info

Depositor

Obtained from ATCC

Country of Origin

United States

Hazard Group (ACDP)

Hazard Group (ACDP) 2

Applications

References

J Immunol 1987;138:4280; Proc Natl Acad Sci, USA 1986;83:2061; J Exp Med 1979;150:1510

Bibliography

Not specified

Available Formats

  • Frozen

If use of this culture results in a scientific publication, it should be cited in the publication as: HT2 Clone A5E (ECACC 92021401).

Unless specified otherwise, at ECACC we routinely handle all of our cell lines at containment level 2 in accordance with the ACDP guidelines (Advisory Committee on Dangerous Pathogens) (UK). All cell cultures have the potential to carry as yet unidentified adventitious agents. It is the responsibility of the end user to ensure that their facilities comply with biosafety regulations for their own country. ACDP Guidance: Biological agents: Managing the risks in laboratories and healthcare premises.

The Culture Collections represent deposits of cultures from world-wide sources. While every effort is made to ensure details distributed by Culture Collections are accurate, Culture Collections cannot be held responsible for any inaccuracies in the data supplied. References where quoted are mainly attributed to the establishment of the cell culture and not for any specific property of the cell line, therefore further references should be obtained regarding cell culture characteristics. Passage numbers where given act only as a guide and Culture Collections does not guarantee the passage number stated will be the passage number received by the customer.

Cultures supplied by Culture Collections are for research purposes only. Enquiries regarding the commercial use of a cell line are referred to the depositor of the cell line. Some cell lines have additional special release conditions such as the requirement for a material transfer agreement to be completed by the potential recipient prior to the supply of the cell line. Please view the Terms & Conditions of Supply for more information.