Abstract:
BACKGROUND:Condyloma acuminatum are common lesions caused by human papillomavirus (HPV). HPV is associated with many human cancers, and a vaccine now prevents infection with high-risk HPV. However, eradication of established disease is difficult, indicating that these lesions are capable of local immunosuppression. OBJECTIVE:This study examines the immunohistochemical staining characteristics of condyloma acuminatum lesions for markers of cellular immunity, including T-lymphocyte subsets, dendritic cells, and infected keratinocytes and markers of antigen presentation in condyloma tissue. METHODS:Five snap-frozen, optimal cutting temperature-embedded condyloma lesions were immunostained for T-lymphocyte markers Fox P3, CD8, CD25 and molecules involved in antigen presentation. RESULTS:Condylomas demonstrated hallmarks of immunosuppression, such as increased cellular interleukin-10 production, decreased expression of transporter associated with antigen presentation, CD40, and carbonic anhydrase IX, decreased dendritic cell counts, and increased T-regulatory cell infiltration. LIMITATIONS:This study was performed with lesions from a single center, and control tissue from the same patients was not available because of lack of patient consent. CONCLUSION:These results demonstrate that condylomas induce a local immunosuppressive environment, with deficits in antigen presentation and enhancement of immunosuppressive T-regulatory cell populations. Strategies to block this immunosuppression are required to elicit effective immune responses to HPV infection.
journal_name
J Am Acad Dermatoljournal_title
Journal of the American Academy of Dermatologyauthors
Le Poole C,Denman CJ,Arbiser JLdoi
10.1016/j.jaad.2008.08.011subject
Has Abstractpub_date
2008-12-01 00:00:00pages
967-74issue
6eissn
0190-9622issn
1097-6787pii
S0190-9622(08)01021-9journal_volume
59pub_type
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journal_title:Journal of the American Academy of Dermatology
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journal_title:Journal of the American Academy of Dermatology
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