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Brief Communication
Absence of Specific Cell Killing of the BRCA2-Deficient Human Cancer Cell Line CAPAN1 by Poly(ADP-ribose) Polymerase Inhibition
Eike Gallmeier and Scott E. Kern
volume 4 | issue 7
july 2005Pages: 703-706
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The specific killing of cells impaired in BRCA2 function upon treatment with poly(ADP-ribose) polymerase (PARP) inihibitors has recently been reported by two groups. CAPAN1, which was not characterized in these reports, represents the only human cancer cell line harboring the frequent, naturally occuring BRCA2 6174delT frameshift mutation accompanied by loss of the second allele. The severe impact of this mutation on BRCA2 function has been extensively characterized. However, PARP inhibition by 3-aminobenzamide or NU1025 did not result in significant cell death in CAPAN1 cells. Our data raise concern about the uniformity of the specific cell killing of BRCA2-deficient cells upon PARP inhibition and therefore urge caution as to whether prior findings are fully generalizable for the specific treatment of human cancers harboring naturally occuring, inactivating forms of BRCA2 mutations.
We now provide open access to journal articles published online for one year or more. This article may be downloaded at the following link:
Download PDFIf the document does not open, please right-click on the link (control-click on a Macintosh) and select the option to save the file to disk.