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Human Papillomavirus Is Rare and Does Not Correlate with P16 Expression in Non-Small-Cell Lung Cancer in a Jordanian Subpopulation

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Publisher MDPI
Specialty General Medicine
Date 2024 Apr 27
PMID 38674306
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Abstract

: Human papillomavirus (HPV) was previously investigated in lung cancer with wide inter-geographic discrepancies. p16 has been used as a surrogate for detecting high-risk HPV (HR-HPV) in some cancer types. This study assessed the evidence of HPV in non-small-cell lung cancer (NSCLC) among Jordanian patients, investigated the expression of p16, and evaluated its prognostic value and association with HPV status. : The archived samples of 100 patients were used. HPV DNA detection was performed by real-time polymerase chain reaction (RT-PCR). p16 expression was assessed by immunohistochemistry (IHC). The Eighth American Joint Committee on Cancer protocol (AJCC) of head and neck cancer criteria were applied to evaluate p16 positivity considering a moderate/strong nuclear/cytoplasmic expression intensity with a distribution in ≥75% of cells as positive. : HPV DNA was detected in 5% of NSCLC cases. Three positive cases showed HR-HPV subtypes (16, 18, 52), and two cases showed the probable HR-HPV 26 subtype. p16 expression was positive in 20 (20%) NSCLC cases. None of the HPV-positive tumors were positive for p16 expression. A statistically significant association was identified between p16 expression and the pathological stage ( 0.029) but not with other variables. No survival impact of p16 expression was detected in NSCLC cases as a group; however, it showed a statistically significant association with overall survival (OS) in squamous cell carcinoma (SqCC) cases ( = 0.033). : This is the first study to assess HPV and p16 expression in a Jordanian population. HPV positivity is rare in NSCLC among a Jordanian subpopulation. P16 reliability as a surrogate marker for HPV infection in lung cancer must be revisited.

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