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  • Title: [Application of EB virus latent membrane protein 1 in nasopharyngeal swab in diagnosis of nasopharyngeal carcinoma].
    Author: Xie Y, Huang G, Zhang Z, Wen W, Wu Y, Wei Z.
    Journal: Lin Chuang Er Bi Yan Hou Ke Za Zhi; 2006 Jun; 20(11):499-501. PubMed ID: 16929830.
    Abstract:
    OBJECTIVE: To investigate the feasibility and reliability of detection of Epstein-Barr virus (EBV) latent membrane protein-1 (LMP1) gene by nasopharyngeal swab in the diagnosis of nasopharyngeal carcinoma (NPC). To investigate the distribution of 30 bp deletion variant of LMP-1 gene in the local population. METHOD: Nasopharyngeal cells were collected by nasopharyngeal swab, and then DNA was extracted, which was subsequently confirmed by amplification of sequence of beta-thalassemia gene by polymerase chain reaction (PCR). And sequence of LMP1 was amplified with specific primer to verify the significance of LMP1 in the diagnosis of NPC. RESULT: DNA was obtained from 96.4% nasopharyngeal swab samples, LMP1 was detected in 33 of 36 samples, while 2 of 45 samples from normal control, with sensitivity 91.7%, and specialty 95.6%. 30 bp deletion of LMP1 gene was found in 80.6% of NPC samples, and wild type 11.1%. CONCLUSION: Our study suggests that nasopharyngeal swab could be effective method for gene-detection. As a parameter in diagnosis of NPC, LMP1 gene is maybe superior to EBVCA-IgA. 30 bp deletion of LMP1 oncogene is widespread in NPC patients.
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