| Literature DB >> 32180540 |
Elizabeth Alloway1, Keith Linder1, Susan May1, Trevor Rose1, Josepha DeLay2, Susan Bender3, Alison Tucker4, Jennifer Luff1.
Abstract
Squamous cell carcinoma (SCC) is the most common neoplasm of the equine stomach. However, the mechanisms underlying malignant transformation are unknown. As Equus caballus papillomavirus-2 (EcPV-2) is a likely cause of some genital SCCs, we hypothesized that EcPV-2 is associated with a subset of equine gastric SCCs. To this aim, we performed polymerase chain reaction (PCR) and in situ hybridization (ISH) for EcPV-2 E6/ E7 oncogenes on 11 gastric SCCs and on gastric samples from 15 control horses with no SCC. PCR for EcPV-2 was positive in 7/11 (64%) gastric SCCs; non-SCC gastric samples were all negative. Intense hybridization signals for EcPV-2 E6/E7 nucleic acid were detected by ISH within tumor cells in 5/11 (45%) gastric SCCs, including distant metastases. No hybridization signals were detected within any of the non-SCC gastric cases. This study provides support for a potential association between EcPV-2 infection and a subset of equine gastric SCC.Entities:
Keywords: Equus caballus papillomavirus; horses; in situ hybridization; oncogenic viruses; squamous cell carcinoma; stomach
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Year: 2020 PMID: 32180540 PMCID: PMC7335262 DOI: 10.1177/0300985820908797
Source DB: PubMed Journal: Vet Pathol ISSN: 0300-9858 Impact factor: 2.221