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微信小章| 产品名称： | BT-20 |
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| 商品货号： | TS212563 |
| Organism： | Homo sapiens, human |
| Tissue： | mammary gland/breast |
| Product Format： | frozen |
| Morphology： | epithelial |
| Culture Properties： | adherent |
| Biosafety Level： | 1
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. |
| Disease： | carcinoma |
| Age： | 74 years |
| Gender： | female |
| Ethnicity： | Caucasian |
| Storage Conditions： | liquid nitrogen vapor phase |
| Karyotype： | Normal chromosomes N3, N4, N9, N13, N14, and X may be absent. The markers der(11)t(11;?)(q25;?) (M1); der(1)t(1;3)(p22?;p13?) (M2); and der(2)t(2;?) (q37;?) (M5) were detected by W.A. Nelson-Rees, et al., Int. J. Cancer 16: 74-85, 1975. |
| Images： | 
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| Derivation： | This breast tumor line was established by E.Y. Lasfargues and L. Ozzello in 1958 by isolation and cultivation of cells spilling out of the tumor when it was cut in thin slices. xad |
| Clinical Data： | Caucasian female 74 years |
| Antigen Expression： | Antigen expression: HLA A1, Bw16 (+/-) |
| Tumorigenic： | Yes |
| Effects： | Yes, in nude mice (The cells form grade II adenocarcinomas.) |
| Comments： | The cells express the WNT3 and the WNT7B oncogenes PubMed: 8168088. A mycoplasma contaminant was discovered and eliminated early in 1972. Growth of BT-20 cells is inhibited by tumor necrosis factor alpha (TNF alpha). BT-20 cells are negative for estrogen receptor, but do express an estrogen receptor mRNA that has deletion of exon 5. |
| Complete Growth Medium： | The base medium for this cell line is ATCC-formulated Eagles Minimum Essential Medium, Catalog No. 30-2003. To make the complete growth medium, add the following components to the base medium: fetal bovine serum to a final concentration of 10%.
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| Subculturing： | Volumes are given for a 75 cm2xa0flask. Increase or decrease the amount of dissociation medium needed proportionally for culture vessels of other sizes. Corning® T-75 flasks (catalog #430641) are recommended for subculturing this product.
Subcultivation Ratio: A subcultivation ratio of 1:2 to 1:4 is recommended
Medium Renewal: 2 to 3 times per week |
| Cryopreservation： | Freeze medium: Complete growth medium supplemented with 5% (v/v) DMSO Storage temperature: liquid nitrogen vapor phase |
| Culture Conditions： | Atmosphere: air, 95%; carbon dioxide (CO2), 5%
Temperature: 37°C |
| STR Profile： | Amelogenin: X CSF1PO: 12 D13S317: 11 D16S539: 11,14 D5S818: 12 D7S820: 10 THO1: 7,9.3 TPOX: 11 vWA: 16,17 |
| Isoenzymes： | AK-1, 1-2 ES-D, 1 G6PD, B GLO-I, 1-2 PGM1, 1 PGM3, 1 |
| Name of Depositor： | EY Lasfargues |
| Deposited As： | Homo sapiens |
| Year of Origin： | 1958 |
| References： | Sugarman BJ, et al. Recombinant human tumor necrosis factor-alpha: effects on proliferation of normal and transformed cells in vitro. Science 230: 943-945, 1985. PubMed: 3933111 Fogh J, et al. Absence of HeLa cell contamination in 169 cell lines derived from human tumors. J. Natl. Cancer Inst. 58: 209-214, 1977. PubMed: 833871 Lan MS, et al. Polypeptide core of a human pancreatic tumor mucin antigen. Cancer Res. 50: 2997-3001, 1990. PubMed: 2334903 Castles CG, et al. Expression of a constitutively active estrogen receptor variant in the estrogen receptor-negative BT-20 human breast cancer cell line. Cancer Res. 53: 5934-5939, 1993. PubMed: 8261406 Huguet EL, et al. Differential expression of human Wnt genes 2, 3, 4, and 7B in human breast cell lines and normal and disease states of human breast tissue. Cancer Res. 54: 2615-2621, 1994. PubMed: 8168088 Lasfargues EY, Ozzello L. Cultivation of human breast carcinomas. J. Natl. Cancer Inst. 21: 1131-1147, 1958. PubMed: 13611537 Pollack MS, et al. HLA-A, B, C and DR alloantigen expression on forty-six cultured human tumor cell lines. J. Natl. Cancer Inst. 66: 1003-1012, 1981. PubMed: 7017212 Littlewood-Evans AJ, et al. The osteoclast-associated protease cathepsin K is expressed in human breast carcinoma. Cancer Res. 57: 5386-5390, 1997. PubMed: 9393764 Geiger T, et al. Antitumor activity of a PKC-alpha antisense oligonucleotide in combination with standard chemotherapeutic agents against various human tumors transplanted into nude mice. Anticancer Drug Des. 13: 35-45, 1998. PubMed: 9474241 The cells form grade II adenocarcinomas. |
| Cross References： | Nucleotide (GenBank) : M76744 Homo sapiens alternatively spliced biliary glycoprotein (BGP) mRNA, 3 end of cds. |