Evaluation of human papilloma virus diagnostic testing in oropharyngeal squamous cell carcinoma: sensitivity, specificity, and prognostic discrimination.
Evaluation of human papilloma virus diagnostic testing in oropharyngeal squamous cell carcinoma: sensitivity, specificity, and prognostic discrimination.
复制标题
DOI:
10.1158/1078-0432.ccr-11-0388
复制
发表时间:
2011-10-01
期刊:
影响因子:
--
通讯作者:
Shaw RJ
中科院分区:
文献类型:
--
作者:
Schache AG;Liloglou T;Risk JM;Filia A;Jones TM;Sheard J;Woolgar JA;Helliwell TR;Triantafyllou A;Robinson M;Sloan P;Harvey-Woodworth C;Sisson D;Shaw RJ
Human Papillomavirus-16 (HPV16) is the causative agent in a biologically distinct subset of oropharyngeal squamous cell carcinoma (OPSCC) with highly favourable prognosis. In clinical trials, HPV16 status is an essential inclusion or stratification parameter, highlighting the importance of accurate testing. Fixed and fresh frozen tissue from 108 OPSCC cases were subject to eight possible assay/assay combinations: p16 immunohistochemistry (p16 IHC); in-situ hybridisation for high risk HPV (HR HPV ISH); quantitative PCR for both viral E6 RNA (RNA qPCR) & DNA (DNA qPCR); and combinations of the above. HPV16 positive OPSCC presented in younger patients (mean 7.5 years younger, p=0.003) who smoked less than HPV negative patients (p=0.007). The proportion of HPV16 positive cases increased from 15% to 57% (p=0.001) between 1988 and 2009. A combination of p16 IHC / DNA qPCR demonstrated acceptable sensitivity (97%) & specificity (94%) compared with the RNA qPCR “gold standard”, as well as being the best discriminator of favourable outcome (OS p=0.002). p16 IHC / HR HPV ISH also had acceptable specificity (90%) but the substantial reduction in its sensitivity (88%) impacted upon its prognostic value (p=0.02). Neither p16 IHC, HR HPV ISH nor DNA qPCR were sufficiently specific to recommend in clinical trials when used in isolation. Caution must be exercised in applying HPV16 diagnostic tests due to significant disparities in accuracy and prognostic value in previously published techniques.