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Veterinary research2012; 43(1); 81; doi: 10.1186/1297-9716-43-81

Equine sarcoids: Bovine Papillomavirus type 1 transformed fibroblasts are sensitive to cisplatin and UVB induced apoptosis and show aberrant expression of p53.

Abstract: Bovine papillomavirus type 1 infects not only cattle but also equids and is a causative factor in the pathogenesis of commonly occurring equine sarcoid tumours. Whilst treatment of sarcoids is notoriously difficult, cisplatin has been shown to be one of the most effective treatment strategies for sarcoids. In this study we show that in equine fibroblasts, BPV-1 sensitises cells to cisplatin-induced and UVB-induced apoptosis, a known cofactor for papillomavirus associated disease, however BPV-1 transformed fibroblasts show increased clonogenic survival, which may potentially limit the therapeutic effects of repeated cisplatin treatment. Furthermore we show that BPV-1 increases p53 expression in sarcoid cell lines and p53 expression can be either nuclear or cytoplasmic. The mechanism and clinical significance of increase/abnormal p53 expression remains to be established.
Publication Date: 2012-12-04 PubMed ID: 23210796PubMed Central: PMC3557224DOI: 10.1186/1297-9716-43-81Google Scholar: Lookup
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  • Journal Article
  • Research Support
  • Non-U.S. Gov't

Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

The research evaluates the sensitivity of horse sarcoid tumors, caused by Bovine Papillomavirus type 1 (BPV-1), to apoptosis induced by cisplatin and UVB. It further investigates the aberrant expression of p53 in affected fibroblasts.

Study Objective and Methodology

  • The purpose of this scientific study revolves around understanding the effects of Bovine Papillomavirus type 1 (BPV-1) infection in horses that results in equine sarcoid tumours.
  • The research also investigates the potential efficiency of cisplatin as a treatment strategy for sarcoids.
  • Cisplatin and UVB-induced apoptosis (programmed cell death) of equine fibroblasts was studied.
  • The scientists also investigated whether BPV-1 transformed fibroblasts showcase increased clonogenic survival, a condition that could possibly limit the therapeutic effects of consecutive cisplatin treatments.
  • Finally, the research also focuses on the abnormal increase of p53 expression in sarcoid cell lines in correlation with the BPV-1.

Key Findings

  • The findings of this research suggest that in equine fibroblasts, BPV-1 predisposes cells to be more susceptible to apoptosis induced by both cisplatin and UVB, a known contributor to papillomavirus-associated disease. Therefore, cisplatin emerges as potentially effective in the treatment of equine sarcoid tumours caused by BPV-1.
  • However, an increased clonogenic survival capacity was observed in BPV-1 transformed fibroblasts, suggesting that this might limit the effectiveness of repeated cisplatin treatment.
  • Another key finding was that BPV-1 can cause an increase in p53 expression in sarcoid cell lines. P53 is a protein coded by the TP53 gene in humans and is a crucial player in preventing cancer. Increased or abnormal P53 protein could signify an interruption in regular cell cycling and apoptosis, potentially leading to hyperproliferative diseases such as cancer.
  • The authors note, however, that the mechanism and clinical significance of this heightened or abnormal p53 expression need to be further investigated and established.

Implications

  • This research contributes significantly to understanding of equine sarcoid tumours, as it offers insights about the sensitivity of BPV-1 transformed fibroblasts to apoptosis induced by cisplatin and UVB.
  • While the study suggests a potential limitation in the effectiveness of repeated cisplatin treatment due to increased clonogenic survival, it nonetheless supports cisplatin as a viable treatment strategy.
  • The study’s investigation into p53 expression presents a plausible start point for further research into the mechanisms and clinical implications of abnormal p53 expression in sarcoid cell lines due to BPV-1.

Cite This Article

APA
Finlay M, Yuan Z, Morgan IM, Campo MS, Nasir L. (2012). Equine sarcoids: Bovine Papillomavirus type 1 transformed fibroblasts are sensitive to cisplatin and UVB induced apoptosis and show aberrant expression of p53. Vet Res, 43(1), 81. https://doi.org/10.1186/1297-9716-43-81

Publication

ISSN: 1297-9716
NlmUniqueID: 9309551
Country: England
Language: English
Volume: 43
Issue: 1
Pages: 81

Researcher Affiliations

Finlay, Margaret
  • MRC-University of Glasgow Centre for Virus Research, Institute of Infection, Inflammation and Immunity, College of Medical, Veterinary and Life Sciences, University of Glasgow, Bearsden Road, Glasgow, Scotland, G61 1QH, United Kingdom. Lubna.Nasir@gla.ac.uk.
Yuan, Zhengqiang
    Morgan, Iain M
      Campo, M Saveria
        Nasir, Lubna

          MeSH Terms

          • Animals
          • Antineoplastic Agents / administration & dosage
          • Antineoplastic Agents / pharmacology
          • Apoptosis / drug effects
          • Blotting, Western / veterinary
          • Bovine papillomavirus 1 / physiology
          • Cisplatin / administration & dosage
          • Cisplatin / pharmacology
          • Fibroblasts / virology
          • Gene Expression Regulation
          • Horse Diseases / genetics
          • Horse Diseases / virology
          • Horses
          • Papillomavirus Infections / genetics
          • Papillomavirus Infections / veterinary
          • Papillomavirus Infections / virology
          • Tumor Suppressor Protein p53 / genetics
          • Tumor Suppressor Protein p53 / metabolism
          • Ultraviolet Rays

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          Citations

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