Epstein-Barr virus DNA measured in nasopharyngeal brushings in patients with nasopharyngeal carcinoma:: Pilot study

被引:4
|
作者
Mäkitie, AA
Reis, PP
Zhang, T
Chin, SF
Gullane, P
Siu, LL
Kamel-Reid, S
Irish, J
机构
[1] Univ Hlth Network, Princess Margaret Hosp, Toronto, ON M5G 2M9, Canada
[2] Univ Toronto, Toronto, ON, Canada
[3] Ontario Canc Inst, Dept Cellular & Mol Biol, Toronto, ON M4X 1K9, Canada
[4] Ontario Canc Inst, Dept Otolaryngol & Surg Oncol, Wharton Head & Neck Ctr, Toronto, ON M4X 1K9, Canada
[5] Ontario Canc Inst, Dept Med Oncol, Toronto, ON M4X 1K9, Canada
来源
JOURNAL OF OTOLARYNGOLOGY | 2004年 / 33卷 / 05期
关键词
deoxyribonucleic acid (DNA); Epstein-Barr virus; nasal brushing; nasopharyngeal carcinoma; quantitative real-time polymerase chain reaction;
D O I
10.2310/7070.2004.00299
中图分类号
R76 [耳鼻咽喉科学];
学科分类号
100213 ;
摘要
Objective: We measured the amount of tumour-derived Epstein-Barr virus (EBV) deoxyribonucleic acid (DNA) in the nasal brushings of nasopharyngeal carcinoma (NPC) patients to determine the correlation with turnout load and response to treatment. Materials and Methods: Twenty-eight patients with NPC were included in the study. Baseline measurements of EBV from nasopharyngeal brushings were obtained from 26 patients prior to treatment. A follow-up sample was available from 11 of these patients post-treatment and from 2 additional patients who did not have a baseline sample. Quantitative real-time polymerase chain reaction (PCR) using SYBR Green I fluorescent dye was used to detect the EBV DNA copy number. Results: Nasopharyngeal brush biopsies showed a high copy number of EBV DNA in most of the pretreatment samples (median 9714 copies/mL). The highest copy number detected was 14 536 944 copies/mL in one sample. In the post-treatment follow-up samples, the copy number was significantly lower (median 6 copies/mL). Conclusions: We have demonstrated that EBV DNA can be detected in the brush biopsies from NPC patients using quantitative real-time PCR. These pilot data suggest that nasopharyngeal brushings with PCR detection of EBV may be an effective tool for determining local turnout response. The potential of this technique as an NPC turnout marker for post-treatment follow-up is being validated with larger patient numbers.
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页码:299 / 303
页数:5
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