Cell-cycle and suppressor proteins expression in uterine cervix in HIV/HPV co-infection: comparative study by tissue micro-array (TMA) View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2008-12

AUTHORS

Alcina F Nicol, Andréa Rodrigues Cordovil Pires, Simone R de Souza, Gerard J Nuovo, Beatriz Grinsztejn, Aparecida Tristão, Fabio B Russomano, Luciane Velasque, José R Lapa e Silva, Claude Pirmez

ABSTRACT

BACKGROUND: The oncoproteins of human papillomavirus (HPVs) directly effect cell-cycle control. We hypothesize that regulatory and cell cycle protein expression might be additionally modified in the cervix of HIV/HPV co-infected women. METHODS: We analyzed the expression of Rb, p27, VEGF and Elf-1 transcriptor factor by immunohistochemistry in 163 paraffin-embeded cervical samples using Tissue Micro-Array (TMA) and correlated this to HIV-1 and HPV infection. RESULTS: HIV/HPV co-infection was associated with a significant increase in expression (p < 0.001) of VEGF and p27 in both low and high grade CIN when compared to the cervices of women infected by HPV alone. Decreased Rb expression was evident with increased CIN grade in the cervices of women infected with HPV alone (p = 0.003 average of cells/mm2 in CIN I: 17.9, CIN II/III: 4.8, and tumor 3.9). Rb expression increased 3-fold for both low and high grade CIN with HPV/HIV-1 co-infection compared to HPV infection alone but did not reach statistical significance. There was a significant increase in Elf-1 expression in HPV+/HIV- women with CIN II/III and tumor (average of cells/mm2 in CIN I: 63.8; CIN II/III: 115.7 and tumor: 112.0, p = 0.005), in comparison to controls. CONCLUSION: Co-infection of HPV and HIV leads to significant increase in the VEGF and p27 expression when compared to HPV+/HIV-negative infection that could facilitate viral persistence and invasive tumor development. More... »

PAGES

289

Identifiers

URI

http://scigraph.springernature.com/pub.10.1186/1471-2407-8-289

DOI

http://dx.doi.org/10.1186/1471-2407-8-289

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1024437750

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/18840277


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