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Detection of Human Boca Virus in Gastric Adenocarcinoma Publisher



Nozarian Z1 ; Abedidoust S2 ; Gharib A3 ; Safavi M2 ; Khazaeli M4 ; Vasei M5
Authors
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Authors Affiliations
  1. 1. Department of Molecular Pathology and Cytogenetics, Farabi Hospital, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Department of Molecular Pathology and Cytogenetics, Children’s Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Department of Molecular Pathology and Cytogenetics, Modarres Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  4. 4. Department of Pathology, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
  5. 5. Cell-based Therapies Research Center, Digestive Disease Research Institute, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran

Source: Middle East Journal of Digestive Diseases Published:2023


Abstract

Background: Gastric cancer is one of the most common cancers worldwide. Human bocavirus (HBoV), a recently isolated virus, has been investigated for its role in many respiratory and enteric diseases. Few studies have reported its presence in solid tumors, such as lung and colon cancers. The aim of this study was to detect the presence of the HBoV1 genome in gastric adenocarcinoma, which has not yet been evaluated. Methods: Formalin-fixed paraffin-embedded (FFPE) blocks of 189 gastric tumors and 50 blocks of non-tumor gastric tissue products from elective weight reduction operations were collected. DNA extraction and real-time polymerase chain reaction (PCR) were performed for HBoV1 detection. DNA sequencing was performed using ABI Genetic Analyzer series 3500. Results: The mean age of the patients was 60 ± 13.33 years. Tumors were more common in males than females (2.5/1). HBoV1 PCR was positive in 34 (18%) cases of GC and 10 (20%) cases of chronic gastritis (P > 0.05). There was no association between age, sex, stage, and histologic subtype of the tumor and HBoV1 positivity (P > 0.05) in tumor samples. The rate of intestinal metaplasia and presence of lymphoid stroma were also not more frequent in HBoV1-positive tumors (P > 0.05). Conclusion: The HBoV1 can be detected in a relatively high proportion of Iranian patients with gastric cancer (18%) with no predilection for specific subtypes and no association with the degree of lymphocytic infiltration. HBoV1 can also be observed in approximately 20% of chronic gastritis cases. Further comprehensive studies are needed to elucidate the role of HBoV1 in gastric cancer development. © 2023 The Author(s).
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