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亚膜汉逊酵母

  • 更新时间:  2020-09-06
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  • 亚膜汉逊酵母,感谢您使用本单位的微生物菌种,我们有可用于科研、教学、生产的菌种约2500株,基本覆盖了环境、工业、农业、分析、食、药用真菌行业各类生产和科研用微生物,其中许多优良菌株的生产性能具有较高水平。
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 亚膜汉逊酵母
        
注意事项
1、 微生物菌种应保藏于低温、清洁和干燥的地方,室温放置时间过长会导致菌种衰退;
2、 菌种操作应在无菌条件下进行,防止杂菌污染;
3、 斜面菌种保藏时间通常为3-6个月,应根据菌种状况及时转接;冻干菌种保藏时间通常为2-15年;

 亚膜汉逊酵母

ATCC® Number:  CL-188™       
Designations:  LS 174T  
Depositors:   Northwestern University  
Biosafety Level: 1  
Shipped:  frozen  
Medium & Serum:  See Propagation  
Growth Properties: adherent 
Organism: Homo sapiens (human)  
Morphology: epithelial

 
Source: Organ: colon 
Tumor Stage: Dukes' type B 
Disease: colorectal adenocarcinoma 
Cellular Products: carcinoembryonic antigen (CEA) (The production of CEA in the ATCC seed stock was 1944 ng per 10(6) cells in 10 days.)
interleukin 10 (IL-10) [22511] 
interleukin 6 (IL-6) 
mucin  
Permits/Forms: In addition to the MTA mentioned above, other ATCC and/or regulatory permits may be required for the transfer of this ATCC material. Anyone purchasing ATCC material is ultimay responsible for obtaining the permits. Please click here for information regarding the specific requirements for shipment to your location.  
 
Tumorigenic: Yes  
Reverse Transcript: negative  
Oncogene: myc +; myb + ; ras +; fos +; p53 +; sis -; abl -; ros -; src -  
Antigen Expression: serologically defined colon cancer antigen 3; Homo sapiens, expressed 
HLA A2, B13, B50; Blood type O 
Cytogenetic Analysis: 45,X; one X chromosome missing; no other chromosomal aberrations 
Isoenzymes:  ADA, 1 
ES-D, 1 
G6PD, B 
PEP-D, 1 
PGD, A 
PGM1, 1 
PGM3, 2 
Age:  58 years  
Gender:  female  
Ethnicity:  Caucasian  
Comments: LS 174T is a variant of LS 180 (ATCC CL-187) that has been maintained by using trypsin in the subculture protocol. It is more easily subcultivated than that parent line and, like LS 180, it is reported to produce large amounts of carcinoembryonic antigen (CEA).
Electron microscopic studies revealed abundant microvilli and intracytoplasmic mucin vacuoles [Pubmed ID: 1262041]. 
They are negative for p53 antigen expression, but positive for mRNA expression. 
LS 174T cells stain positively for cytokeratins. 
The line is positive for expression of c-myc, N-myc, H-ras, N-ras. 
Myb, and fos oncogenes. 
K-ras and sis oncogene expression were not detected. 
Propagation:  ATCC complete growth medium: The base medium for this cell line is ATCC-formulated Eagle's 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%.
Atmosphere: air, 95%; carbon dioxide (CO2), 5% 
Temperature: 37.0°C 
Subculturing:  Protocol: 
Remove and discard culture medium.
Briefly rinse the cell layer with 0.25% (w/v) Trypsin- 0.53 mM EDTA solution to remove all traces of serum that contains trypsin inhibitor.
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 37°C to facilitate dispersal.
Add 6.0 to 8.0 ml of complete growth medium and aspirate cells by gently pipetting.
Add appropriate aliquots of the cell suspension to new culture vessels.
Incubate cultures at 37°C.

Subcultivation Ratio: A subcultivation ratio of 1:2 to 1:4 is recommended 
Medium Renewal: 2 to 3 times per week 
Preservation:  Freeze medium: Complete growth medium supplemented with 5% (v/v) DMSO 
Storage temperature: liquid nitrogen vapor phase 
Related Products: Recommended medium (without the additional supplements or serum described under ATCC Medium):ATCC 30-2003
recommended serum:ATCC 30-2020
derived from same individual:ATCC CL-187 
References: 2148: Tom BH, et al. Human colonic adenocarcinoma cells. I. Establishment and description of a new line. In Vitro 12: 180-191, 1976. PubMed: 1262041
3524: Tom BH, et al. Process of producing carcinoembryonic antigen. US Patent 4,228,236 dated Oct 14 1980
22147: Chen TR, et al. Intercellular karyotypic similarity in near-diploid cell lines of human tumor origins. Cancer Genet. Cytogenet. 10: 351-362, 1983. PubMed: 6652615
22511: Gastl GA, et al. Interleukin-10 production by human carcinoma cell lines and its relationship to interleukin-6 expression. Int. J. Cancer 55: 96-101, 1993. PubMed: 8344757
22861: Trainer DL, et al. Biological characterization and oncogene expression in human colorectal carcinoma cell lines. Int. J. Cancer 41: 287-296, 1988. PubMed: 3338874
32265: Tsao H, et al. Novel mutations in the p16/CDKN2A binding region of the Cyclin-dependent Kinase-4 gene. Cancer Res. 58: 109-113, 1998. PubMed: 9426066
32377: Shibata D, et al. Genomic instability in repeated sequences is an early somatic event in colorectal tumorigenesis that persists after transformation. Nat. Genet. 6: 273-281, 1994. PubMed: 8012390
32794: Kutchera W, et al. Protaglandin H synthase 2 is expressed abnormally in human colon cancer: evidence for a transcriptional effect. Proc. Natl. Acad. Sci. USA 93: 4816-4820, 1996. PubMed: 8643486 
 


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