My-La CD8+

Study of antigen-independent proliferation of T- cell lyphoma from mycosis fungoides patient.

Human Caucasian T Lymphocyte, mycosis fungoides.

The cell line My-La, CD8+, also known as My-La, marker chromosome was established from a plaque biopsy of an 82 year old Caucasian patient with mycosis fungoides stage II. Together with My-La, CD8+ a second cell line has been established (My-La, CD4+ Sigma Catalogue number. 95051032) by including IL-2 and IL-4 in the culture medium. My-La, CD8+ shows characteristic chromosome markers, express β-13 of the T-cell receptor and are double homozygous for HLA-A1.B8. Phenotypically a weak staining was observed for CD2, CD3, CD8, CD25, CD71 and TCR-1 α / β. There has been no evidence of HTLV-I infection in the cell line and serum from the patient did not demonstrate antibodies against HTLV-I and HTLV-II. My-La, CD8+ cells show a low viability after resuscitation from frozen and a long lag time phase until exponential growth is reached.

Maintain cultures between 3-9 x 100,000 cells/ml; 5% CO₂; 37°C. Split only 1:2 as maximum dilution: freeze in growth medium plus 10% DMSO, low viability on resuscitation. Use of human serum produces high levels of debris in cultures.

RPMI 1640 + 2mM Glutamine + 100 u/ml IL-2 + 10% human AB seum

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This cell line is part of the European Collection of Authenticated Cell Cultures (ECACC), an international repository managed by the United Kingdom Health Security Agency (UKHSA). No licensing agreement is required when either this cell line or the DNA extracted from it are used for internal research purposes only. Any other use of these products is prohibited without the express written permission of UKHSA. Inquiries regarding authorized use of this cell line or its genomic DNA may be directed to culturecollections@ukhsa.gov.uk.