Epidermodysplasia Verruciformis-Like Cells as Histologic Markers of Immunosuppression: Review of 229 Squamous Cell Carcinomas
Epidermodysplasia verruciformis (EV) is associated with greater susceptibility to infection by certain oncogenic subtypes of human papillomavirus (HPV). Among other histologic findings, large, clear, oval or rounded cells (EV cells) are observed in the granular layer in EV, and some authors consider...
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Published in: | Actas dermo-sifiliográficas Vol. 99; no. 4; pp. 269 - 274 |
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Main Authors: | , , , , , , |
Format: | Journal Article |
Language: | English Spanish |
Published: |
Spain
01-05-2008
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Online Access: | Get full text |
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Summary: | Epidermodysplasia verruciformis (EV) is associated with greater susceptibility to infection by certain oncogenic subtypes of human papillomavirus (HPV). Among other histologic findings, large, clear, oval or rounded cells (EV cells) are observed in the granular layer in EV, and some authors consider these cells to be markers of immunosuppression.
We analyzed 229 squamous cell carcinomas (SCC) to determine whether EV cells were present and to assess whether their presence was associated either with localized or cutaneous immunosuppression (tumors with signs of severe chronic actinic damage or severe stasis dermatitis) or with systemic immunosuppression (immunocompromised or elderly patients).
We observed EV cells in 33 SCC. No statistically significant relationship was observed between the presence of EV cells and immunosuppression. We performed polymerase chain reaction in 8 lesions, but the results were not informative as the DNA was denatured.
We found no relationship between the presence of EV cells and localized or systemic immunosuppression, possibly because the sample was inadequate (almost all SCC studied were associated with signs of immunosuppression, irrespective of the presence or absence of EV cells). Further studies will be required to compare lesions associated with immunosuppression with those in which immunosuppression is absent. The presence of EV cells may be the result of cytopathic effects of certain HPV subtypes, such as HPV 5 or 8, but this will need to be demonstrated using techniques such as polymerase chain reaction.
La epidermodisplasia verruciforme (EV) es una enfermedad en la que existe una mayor susceptibilidad genética a la infección por determinados subtipos oncogénicos del virus del papiloma humano (VPH). Entre otros hallazgos histológicos, en la EV suelen observarse unas células claras, grandes, ovaladas o redondeadas (células EV) en la capa granulosa, que según algunos autores se podrían considerar como un marcador histológico de inmunodepresión.
Hemos estudiado 229 carcinomas espinocelulares (CE) para valorar si presentaban células EV y si se relacionaban con inmunodepresión, tanto localizada o cutánea (tumores con signos de intenso daño solar crónico o con una dermatitis de estasis intensa), como sistémica (pacientes inmunodeprimidos o ancianos).
Observamos células EV en 33 carcinomas. No hemos encontrado relación significativa entre la existencia de células EV e inmunodepresión. Realizamos reacción en cadena de la polimerasa (PCR) en 8 lesiones, pero los resultados no fueron valorables porque el ADN estaba desnaturalizado.
No hemos demostrado relación entre las células EV e inmunodepresión, localizada o sistémica, posiblemente porque la muestra no era adecuada (se podría considerar que prácticamente todos los CE estudiados se asociaban a signos de inmunodepresión, tanto aquellos que presentaban células EV como los que no). Serían necesarios más estudios que comparasen lesiones asociadas a inmunodepresión con otras que no. Es posible que estas células EV sean el resultado de los efectos citopáticos de determinados subtipos de VPH, como el VPH-5 o el VPH-8, aunque sería necesario demostrar esta hipótesis mediante técnicas de PCR o similar. |
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ISSN: | 1578-2190 0001-7310 1578-2190 |
DOI: | 10.1016/S1578-2190(08)70250-6 |