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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Radiation response of vulvar squamous cell carcinoma (UM-SCV-1A, UM-SCV-1B, UM-SCV-2, and A-431) cells in vitro.

Standard therapy for squamous cell carcinoma ( SCC) of the vulva consists of radical surgery and inguinal node dissection. Radiation therapy has been used for preoperative treatment in advanced cases to reduce the size of the tumor, and also as the only treatment in inoperable or recurrent disease. To study the inherent radiation sensitivity of vulvar carcinoma, we tested three new vulvar carcinoma cell lines and the long-established cell line A-431 by using a 96-well plate clonogenic assay, earlier shown by us to be suitable for survival studies of SCC. SCC and adenocarcinoma cell lines derived from other sites were used as a reference. Cells were irradiated with a 4-MeV linear accelerator at a dose rate of 2.0 Gy/min. The vulvar cell lines were found to be highly resistant to radiation with the average mean inactivation dose of 3.44 +/- 0.34 Gy as calculated from the area under the curve. The results were consistent in repeated experiments and for all cell lines. The average value for area under the curve was 1.79 +/- 0.30 for the other SCC lines tested. The values for area under the curve differed significantly (P less than 0.0001) between the vulvar lines and reference SCC lines. These results indicate that vulvar SCC cells in vitro express exceptional inherent radioresistance, and thus development of other forms of additional treatment would be more advantageous in advanced cases.[1]

References

  1. Radiation response of vulvar squamous cell carcinoma (UM-SCV-1A, UM-SCV-1B, UM-SCV-2, and A-431) cells in vitro. Pekkola-Heino, K., Kulmala, J., Grenman, S., Carey, T.E., Grenman, R. Cancer Res. (1989) [Pubmed]
 
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