Prediction of outcome in patients with low-grade squamous intraepithelial lesions by fluorescence in situ hybridization analysis of human papillomavirus, TERC, and MYC

Obermann, Ellen C.; Savic Prince, Spasenija; Barascud, Audrey; Grilli, Bruno; Herzog, Michelle; Kaup, Daniela; Cathomas, Gieri; Frey Tirri, Brigitte; Zlobec, Inti; Wight, Edward; Bubendorf, Lukas (2013). Prediction of outcome in patients with low-grade squamous intraepithelial lesions by fluorescence in situ hybridization analysis of human papillomavirus, TERC, and MYC. Cancer cytopathology, 121(8), pp. 423-431. Jossey Bass, 10.1002/cncy.21280

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BACKGROUND

Cytology is an excellent method with which to diagnose preinvasive lesions of the uterine cervix, but it suffers from limited specificity for clinically significant lesions. Supplementary methods might predict the natural course of the detected lesions. The objective of the current study was to test whether a multicolor fluorescence in situ hybridization (FISH) assay might help to stratify abnormal results of Papanicolaou tests.

METHODS

A total of 219 liquid-based cytology specimens of low-grade squamous intraepithelial lesions (LSIL), 49 atypical squamous cells of undetermined significance (ASCUS) specimens, 52 high-grade squamous intraepithelial lesion (HSIL) specimens, and 50 normal samples were assessed by FISH with probes for the human papillomavirus (HPV), MYC, and telomerase RNA component (TERC). Subtyping of HPV by polymerase chain reaction (PCR) was performed in a subset of cases (n=206).

RESULTS

There was a significant correlation found between HPV detection by FISH and PCR (P<.0001). In patients with LSILs, the presence of HPV detected by FISH was significantly associated with disease progression (P<.0001). An increased MYC and/or TERC gene copy number (>2 signals in>10% of cells) prevailed in 43% of ASCUS specimens and was more frequent in HSIL (85%) than in LSIL (33%) (HSIL vs LSIL: P<.0001). Increased TERC gene copy number was significantly correlated with progression of LSIL (P<.01; odds ratio, 7.44; area under the receiver operating characteristic curve, 0.73; positive predictive value, 0.30; negative predictive value, 0.94) CONCLUSIONS: The detection of HPV by FISH analysis is feasible in liquid-based cytology and is significantly correlated with HPV analysis by PCR. The analysis of TERC gene copy number may be useful for risk stratification in patients with LSIL.

Item Type:	Journal Article (Original Article)
Division/Institute:	04 Faculty of Medicine > Service Sector > Institute of Pathology
UniBE Contributor:	Zlobec, Inti
Subjects:	500 Science > 570 Life sciences; biology 600 Technology > 610 Medicine & health
ISSN:	1934-662X
Publisher:	Jossey Bass,
Language:	English
Submitter:	Andrea Arnold
Date Deposited:	02 Apr 2014 16:35
Last Modified:	05 Dec 2022 14:31
Publisher DOI:	10.1002/cncy.21280
PubMed ID:	23408758
Uncontrolled Keywords:	squamous intraepithelial lesion, human papillomavirus, telomerase RNA component (TERC), MYC, cervical cytology, fluorescence in situ hybridization
URI:	https://boris.unibe.ch/id/eprint/46165