Deletion of the FHIT gene in neoplastic and invasive cervical lesions is related to high-risk HPV infection but is independent of histopathological features

David Butler, Claire Collins, Mohamed Mabruk, Caitriona Barry Walsh, Mary B. Leader, Elaine W. Kay

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

The fragile histidine triad (FHIT) gene encompasses the common chromosomal fragile site FRA3B. Human papilloma virus (HPV), which is the main aetiological agent in cervical cancers, has been found to be able to integrate its genes into the chromosome 3 fragile site of cultured cells, deleting a piece of DNA which includes the FHIT gene. Eighty-six microdissected archival cervical LLETZ biopsies comprising cases of cervical intraepithelial neoplasia (CIN) I (n=27), CIN3 (n=30) and microinvasive carcinoma (n=29) were evaluated for HPV infection and FHIT gene loss of heterozygosity (LOH). FHIT gene LOH was detected by polymerase chain reaction (PCR) using fluorescently labelled intragenic microsatellite markers D3S1360 and D3S4103. PCR products were analysed on a semi-automated DNA sequencer using Fragment Manager(TM) software to determine allele loss. The HPV status of the lesions was determined by PCR using generic and type-specific primers in conjunction with restriction endonuclease digestion. The results were analysed using Epi-Info and SPSS-PC statistical analysis software. Haematoxylin and eosin-stained sections from the 86 cases were profiled for six histopathological features, some of which have been previously shown to be associated with microinvasive cancer. FHIT gene LOH was found in 36% of CIN1 cases, 52% of CIN3 cases and 73% of microinvasive cases (p=0.029). HPV 16 DNA was found in 68% of CIN3 cases and 93% of microinvasive cases (p < 0.001). The second most prevalent HPV type found was HPV 31, which was present in only four lesions, three of which had FHIT gene LOH. When FHIT gene LOH was evaluated versus HPV 16 and 31 infection using the chi-square test, a statistically significant relationship was found (p=0.014). FHIT gene LOH was found to be independent of the histopathological features evaluated. The finding of a statistically significant relationship between FHIT gene LOH and oncogenic HPV infection suggests a link between the integration of viral DNA and subsequent gene deletion in the progression of cervical cancer. FHIT gene anomalies may prove to be excellent markers of progression in early uterine cervical cancers. Copyright (C) 2000 John Wiley and Sons, Ltd.

Original languageEnglish
Pages (from-to)502-510
Number of pages9
JournalJournal of Pathology
Volume192
Issue number4
DOIs
Publication statusPublished - 2000

Fingerprint

Papillomaviridae
Virus Diseases
Histidine
Loss of Heterozygosity
Genes
Uterine Cervical Neoplasms
Polymerase Chain Reaction
Chromosome Fragile Sites
DNA
Software
Oncogenic Viruses
Cervical Intraepithelial Neoplasia
Chromosomes, Human, Pair 3
DNA Restriction Enzymes
Viral DNA
Gene Deletion

Keywords

  • Cervical cancer
  • CIN
  • FHIT gene
  • Histopathological features
  • HPV
  • LOH
  • Microinvasion

ASJC Scopus subject areas

  • Pathology and Forensic Medicine

Cite this

Deletion of the FHIT gene in neoplastic and invasive cervical lesions is related to high-risk HPV infection but is independent of histopathological features. / Butler, David; Collins, Claire; Mabruk, Mohamed; Walsh, Caitriona Barry; Leader, Mary B.; Kay, Elaine W.

In: Journal of Pathology, Vol. 192, No. 4, 2000, p. 502-510.

Research output: Contribution to journalArticle

Butler, David ; Collins, Claire ; Mabruk, Mohamed ; Walsh, Caitriona Barry ; Leader, Mary B. ; Kay, Elaine W. / Deletion of the FHIT gene in neoplastic and invasive cervical lesions is related to high-risk HPV infection but is independent of histopathological features. In: Journal of Pathology. 2000 ; Vol. 192, No. 4. pp. 502-510.
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