Clinical laboratory · 2019
Molecular Detection of Pathogens Causing Sexually Transmissible Infections in Patients with Prostate Cancer and Hyperplasia by Quantitative TaqMan Real-Time PCR Assay.
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Ala-Almohadesin Arash, Mohammadbeygi Mohammadreza, Bahavar Atefeh, Mohammadi Masoud A, Mohamadzadeh Nima, Abolhasani Maryam, Dabiri Hossein
Аннотация
BACKGROUND: Prostate cancer is considered the most prevalent cancer among men. Recent studies suggest that sex-ually transmissible infections (STIs) may be related to prostate carcinogenesis. Therefore, the aim of this study was to investigate whether STI pathogens (Atopobium vaginae (ATO), Neisseria gonorrhoeae (NG), Chlamydia tra-chomatis (CT), Treponema pallidum (TP), Ureaplasma urealyticum (UU), Gardnerella vaginalis (GV), Herpes Sim-plex Virus (HSV), Cytomegalovirus (CMV), Human herpesvirus (HHV), Human papillomavirus (HPV), and Tricho-monas vaginalis (TV)) presence in prostate tissues are associated with the risk of prostate cancer.
METHODS: Paraffin-embedded prostate tissues obtained from patients with hyperplasia and prostate cancer were extracted. Determination of infectious microorganisms of interest was done by quantitative TaqMan real-time PCR assay.
RESULTS: STI DNA was detected in 53/243 (21.8%) of the prostate tissues samples (ATO 3.7%, UU 2.88%, GV 2.46%, HSV-2 2.05%, CT 2.05%, CMV 1.64%, NG 1.64%, TP 1.64%, HHV-8 1.23%, HPV 1.23%, and TV 1.23%.) The statistical analysis revealed significant correlation between prevalence of Gardnerella vaginalis (GV) and Herpes Simplex Virus (HSV-2) between hyperplasia and cancerous groups (p = 0.02), respectively.
CONCLUSIONS: No statistically significant difference was observed in the prevalence of most candidate infectious or-ganisms between hyperplasia and cancerous groups except for GV and HSV-2. It appears that inflammation in the prostate gland is more associated with prostate hyperplasia than prostate cancer. According to the role of in-fectious microorganisms in induction of chronic inflammation, we cannot exclude the importance of these patho-gens in progression of cancer. More studies are required to explore the associations of cancer with different infec-tious organisms.
METHODS: Paraffin-embedded prostate tissues obtained from patients with hyperplasia and prostate cancer were extracted. Determination of infectious microorganisms of interest was done by quantitative TaqMan real-time PCR assay.
RESULTS: STI DNA was detected in 53/243 (21.8%) of the prostate tissues samples (ATO 3.7%, UU 2.88%, GV 2.46%, HSV-2 2.05%, CT 2.05%, CMV 1.64%, NG 1.64%, TP 1.64%, HHV-8 1.23%, HPV 1.23%, and TV 1.23%.) The statistical analysis revealed significant correlation between prevalence of Gardnerella vaginalis (GV) and Herpes Simplex Virus (HSV-2) between hyperplasia and cancerous groups (p = 0.02), respectively.
CONCLUSIONS: No statistically significant difference was observed in the prevalence of most candidate infectious or-ganisms between hyperplasia and cancerous groups except for GV and HSV-2. It appears that inflammation in the prostate gland is more associated with prostate hyperplasia than prostate cancer. According to the role of in-fectious microorganisms in induction of chronic inflammation, we cannot exclude the importance of these patho-gens in progression of cancer. More studies are required to explore the associations of cancer with different infec-tious organisms.