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FL 62891
FL 62891
規(guī)格:
貨期:
編號(hào):B230450
品牌:Mingzhoubio

標(biāo)準(zhǔn)菌株
定量菌液
DNA
RNA

規(guī)格:
凍干粉
斜面
甘油
平板


產(chǎn)品名稱 FL 62891
商品貨號(hào) B230450
Organism Homo sapiens, human
Tissue stromal; liver
Cell Type immortalized with SV40 large T antigen
Product Format frozen
Morphology fibroblast
Culture Properties adherent
Biosafety Level 2 Cells contain SV-40 viral DNA sequences

Biosafety classification is based on U.S. Public Health Service Guidelines, it is the responsibility of the customer to ensure that their facilities comply with biosafety regulations for their own country.

Age fetus
Applications
The cells produce flk-1 and some flk-2 ligands.
The cell line was derived from human fetal liver tissue, and immortalized by transformation with an ecotropic retrovirus containing a temperature sensitive SV40 T-antigen (tsA58) and a G418 resistance gene.
Storage Conditions liquid nitrogen vapor phase
Disclosure This material is cited in a US or other Patent and may not be used to infringe the claims. Depending on the wishes of the Depositor, ATCC may be required to inform the Patent Depositor of the party to which the material was furnished. This material may not have been produced or characterized by ATCC.
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Derivation
The cell line was derived from human fetal liver tissue, and immortalized by transformation with an ecotropic retrovirus containing a temperature sensitive SV40 T-antigen (tsA58) and a G418 resistance gene. After several days at 37C, the temperature of the medium was lowered to 32C. Cells were selected with G418. The selected cells were expanded and maintained. The cells produce flk-1 and some flk-2 ligands.
Comments
The cell line was derived from human fetal liver tissue, and immortalized by transformation with an ecotropic retrovirus containing a temperature sensitive SV40 T-antigen (tsA58) and a G418 resistance gene. After several days at 37C, the temperature of the medium was lowered to 32C. Cells were selected with G418. The selected cells were expanded and maintained. The cells produce flk-1 and some flk-2 ligands.
Complete Growth Medium Iscove's modified Dulbecco's medium with 4 mM L-glutamine adjusted to contain 1.5 g/L sodium bicarbonate supplemented with 0.1 mM non-essential amino acids, 1.0 mM sodium pyruvate, and 15% fetal bovine serum
Subculturing Volumes used in this protocol are for 75 cm2 flask; proportionally reduce or increase amount of dissociation medium for culture vessels of other sizes.
  1. Remove and discard culture medium.
  2. Briefly rinse the cell layer with 0.25% (w/v) Trypsin- 0.53 mM EDTA solution to remove all traces of serum which contains trypsin inhibitor.
  3. Add 2.0 to 3.0 mL of Trypsin-EDTA solution to flask and observe cells under an inverted microscope until cell layer is dispersed (usually within 5 to 15 minutes).
    Note: To avoid clumping do not agitate the cells by hitting or shaking the flask while waiting for the cells to detach. Cells that are difficult to detach may be placed at 32°C to facilitate dispersal.
  4. Add 6.0 to 8.0 mL of complete growth medium and aspirate cells by gently pipetting.
  5. Add appropriate aliquots of the cell suspension to new culture vessels.
  6. Incubate cultures at 32°C.

Subcultivation Ratio: A subcultivation ratio of 1:3 to 1:4 is recommended
Medium Renewal: Every 2 to 3 days

Note: For more information on enzymatic dissociation and subculturing of cell lines consult Chapter 10 in Culture of Animal Cells, a Manual of Basic Technique by R. Ian Freshney, 3rd edition, published by Alan R. Liss, N.Y., 1994.

Cryopreservation

Complete growth medium described above supplemented with 5% (v/v) DMSO.  Cell culture tested DMSO is available as ATCC Catalog No. 4-X.

Culture Conditions
Temperature: 32°C
Atmosphere: Air, 95%; Carbon dioxide (CO2), 5%
Population Doubling Time 48 hours
Name of Depositor ImClone Systems Inc.
U.S. Patent Number
References

Lemischka IR. Nucleic acids encoding fragments of hematopoietic stem cell receptor flk-2. US Patent 5,270,458 dated Dec 14 1993

Lemischka IR. Tyrosine kinase receptor flk-2 and fragments thereof. US Patent 5,367,057 dated Nov 22 1994

Lemischka IR. Tyrosine kinase receptor human flk-2-specific antibodies. US Patent 5,548,065 dated Aug 20 1996

Lemischka IR. Nucleic acids encoding soluble human FLK-2 extracellular domain. US Patent 5,621,090 dated Apr 15 1997

Lemischka IR. Antibodies against tyrosine kinase receptor flk-1. US Patent 5,747,651 dated May 5 1998

Lemischka IR. Method for isolating stem cells expressing flk-1 receptors. US Patent 5,912,133 dated Jun 15 1999

Hay, R. J., Caputo, J. L., and Macy, M. L., Eds. (1992), ATCC Quality Control Methods for Cell Lines. 2nd edition, Published by ATCC.

Caputo, J. L., Biosafety procedures in cell culture. J. Tissue Culture Methods 11:223-227, 1988.

Fleming, D.O., Richardson, J. H., Tulis, J.J. and Vesley, D., (1995) Laboratory Safety: Principles and Practice. Second edition, ASM press, Washington, DC.

Biosafety in Microbiological and Biomedical Laboratories, 5th ed. HHS. U.S. Department of Health and Human Services, Centers for Disease Control and Prevention. Washington DC: U.S. Government Printing Office; 2007. The entire text is available online.

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