Microinvasive squamous cell carcinoma of the cervix: immunohistochemically detected prognostic factors in a case with poor clinical outcome
ABSTRACT Established prognostic factors for cervical cancer are tumor stage, vascular space invasion, tumor size/volume, depth of invasion, and lymph node status. Although patients with superficially invasive lesions have a very good prognosis, cases are still reported which have a poor clinical outcome.
We report a case of a 41-year-old woman with very early stromal invasion (0.6 mm deep and <1 mm wide) who presented with a pelvic recurrence at 3 years and then developed an anterior abdominal wall and disseminated peritoneal recurrence 4 years after extrafascial hysterectomy. Archival tissue of the cone biopsy was stained immunohistochemically for CD44v6, Her2-neu, p53, bcl-2, MMP-1, and VEGF and showed positive staining for CD44v6 and MMP-1.
The identification of new prognostic factors may enhance our understanding of the biologic behavior of early invasive cancer of the cervix. Our findings suggest that CD44v6 and MMP-1 may be markers worth further investigation in patients with microinvasive cervical cancer.
- SourceAvailable from: Maria Alice Gonçalves
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- "Some studies have demonstrated that high bcl-2 expression may be related to a good prognosis in several cancers, such as breast, ovarian, and cervical cancer, as well as lymphoma (Crawford et al. 1998; Dimitrakakis et al. 2000). Conversely, the expression of bcl-2 protein was nearly absent in progressing oral lesions (Chang et al. 2002), and present at low levels in a microinvasive squamous cervical carcinoma (Kohlberger et al. 2003). "
ABSTRACT: Inactivation of the cell cycle inhibitor gene p16MTS1 seems to be involved in human papillomavirus (HPV)-related carcinogenesis because E6 and E7 oncoproteins may impair p16INK4a and, indirectly, bcl-2 functions. In this study, we analyzed the role of immunohistochemical expression of p16INK4a and bcl-2 in HPV-infected cervical biopsies as prognostic markers of the progression of squamous intraepithelial lesion (SIL). Sixty-five cervical biopsies were stratified into two subgroups according to the second biopsy: 27 of them maintained a low-grade (LG)-SIL diagnosis, and 38 progressed from LG-SIL to high-grade (HG)-SIL. p16INK4a and bcl-2 quantitative expression levels were measured by the immunoperoxidase method. PCR-DNA techniques were used to detect and type HPV. The Wilcoxon and Fisher exact tests were employed for the statistical analysis. In the group with an LG-SIL diagnosis at the second biopsy, no significant associations were found between p16INK4a and bcl-2 expression and presence of HPV16/18. In the group that progressed to HG-SIL, a significant association was observed between p16INK4a overexpression and HPV16/18 presence (p=0.021), but none with bcl-2 levels. It is concluded that immunohistochemical bcl-2 expression may not be useful for predicting the progression of HPV-related SIL. In contrast, p16INK4a overexpression seemed to be associated with HPV 16 and 18, suggesting that it may be a good marker for predicting SIL progression.Journal of Histochemistry and Cytochemistry 05/2005; 53(4):509-16. DOI:10.1369/jhc.4A6312.2005 · 2.40 Impact Factor
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ABSTRACT: HER-2 codon 655 polymorphism together with human papillomavirus (HPV) types were examined in a total of 279 cervical smear samples. Forty-nine patients with high-grade squamous intraepithelial lesion had higher frequency of high-risk HPV than 167 patients with low-grade squamous intraepithelial lesion and 63 controls. There was no statistical difference in the frequencies of HER-2 Ile/Ile, Ile/Val, and Val/Val genotypes between squamous intraepithelial lesions (SILs) and controls. When the Ile/Ile genotype was compared to the Ile/Val + Val/Val genotypes, there was also no statistical difference in the genotype prevalence between SILs and controls either in 91 or 188 patients with or without high-risk HPV, respectively. These results suggest that the HER-2 polymorphism at codon 655 in cervical cell samples is unlikely to be associated with HPV status and the onset of cervical cancer in a Japanese population.International Journal of Gynecological Cancer 01/2006; 16(1):325-8. DOI:10.1111/j.1525-1438.2006.00349.x · 1.95 Impact Factor