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  • 2000-2004  (2)
  • 1920-1924
  • Head and Neck Squamous Cell Carcinoma  (1)
  • Macrobrachium nipponense  (1)
Materialart
Erscheinungszeitraum
  • 2000-2004  (2)
  • 1920-1924
Jahr
  • 1
    Digitale Medien
    Digitale Medien
    Springer
    Methods in cell science 22 (2000), S. 277-284 
    ISSN: 1573-0603
    Schlagwort(e): Macrobrachium nipponense ; Cell subculture ; pH ; Zn2+
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract A cell culture system was devised for muscle cell of Macrobrachium nipponense in the study. The juvenile and adult shrimps were held in laboratory aquaria with penicillin 1000 IU/ml and streptomycin 1000 µg/ml for 12–24 hours. Cell cultures were established in medium 199 supplemented with 20% fetal bovine serum, 1 g/L glucose, 5.2 g/L NaCl, 1.43 g/L CaCl2, 0.05 g/L MgCl2, 100 IU/mL penicillin and 100 µg/ml streptomycin. Fibroblast-like cells were passaged up to three times and survived for 54 days. The results showed the optimum for subculture in vitro was in medium 199 with pH 7.6. Moreover, basal medium supplemented with Zn2+ 60 µg/L could enhance the growth of the muscle cells. It was found that better results for cell culture would be obtained more easily with juvenile shrimps caught in spring than adults in summer or autumn; and shrimps caught within 12 hours after ecdysis could grow much better than the intermoult shrimps.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    ISSN: 0219-1032
    Schlagwort(e): DNA Methylation ; Head and Neck Squamous Cell Carcinoma ; p16INK4a
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Inactivation of the p16INK4a gene by mutation and deletion is common in head and neck squamous cell carcinoma (HNSCC). The present study demonstrates that hypermethylation of the 5′ CpG islands can serve as an alternative mechanism for the inactivation of the p16INK4a gene in this tumor. We studied 11 HNSCC cell lines and 17 oral squamous cell carcinoma (OSCC) primary tumors for p16INK4a gene status by protein/mRNA and DNA genetic/epigenetic analyses to determine the incidence of its inactivation. Our study indicates that: (1) inactivation of p16 protein is frequent in HNSCC cell lines (6/11, 54.5%) and OSCC primary tumors (15/17, 88.2%), (2) inactivation of p16INK4a protein is commonly associated with the presence of gene alteration such as mutation, homozygous deletion and especially aberrant methylation, and (3) genomic sequencing of bisulfite-modified DNA shows that the carcinoma develops a heterogeneous pattern of hypermethylation.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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