H9 [derivative of HuT 78]
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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.
This cell line is a suitable transfection host.
This is a near triploid cell line (modal number = 69; range = 58 to 74). The frequency of higher ploidies is 2.5%. The line has an extremely complex karyotype with nearly 60% of the chromosomes in each cell being structurally altered marker chromosomes., Among the markers are t(3p4q), t(5q6q), t(5p6p), i(18q), i(18p); t(4q7p), and del(7)(q32). The first four of these are usually paired. Normal N4, N5, N6, N7, N10, N13, N18, N19, N20 and X are absent.
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.
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Gootenberg JE, et al. Human cutaneous T cell lymphoma and leukemia cell lines produce and respond to T cell growth factor. J. Exp. Med. 154: 1403-1418, 1981. PubMed: 6975346
Mann DL, et al. Origin of the HIV-susceptible human CD4+ cell line H9. AIDS Res. Hum. Retroviruses 5: 253-255, 1989. PubMed: 2567177
Gazdar AF, et al. Mitogen requirements for the in vitro propagation of cutaneous T-cell lymphomas. Blood 55: 409-417, 1980. PubMed: 6244013
Popovic M, et al. Detection, isolation, and continuous production of cytopathic retroviruses (HTLV-III) from patients with AIDS and pre-AIDS. Science 224: 497-500, 1984. PubMed: 6200935
Chen TR. Karyotypic derivation of H9 cell line expressing human immunodeficiency virus susceptibility. J. Natl. Cancer Inst. 84: 1922-1926, 1992. PubMed: 1460674