BACKGROUND: Immune perturbation likely affects the development of Kaposi sarcoma (KS) among people infected with theKS-associated herpesvirus (KSHV). We tested whether KSHV-seropositive individuals or cases of classic KS (cKS), which typicallyoriginates in the leg, had differing delayed-type hypersensitivity (DTH) in the forearm or leg.METHODS: Mantoux DTH with three antigens (Candida, tetanus, PPD) was performed on the forearm and leg of 15 cKS cases,14 KSHV-positives without KS, and 15 KSHV-negative controls. The diameters of induration responses were compared by groupand body site.RESULTS: Leg DTH was greater than forearm DTH among controls (mean difference 5.6 mm, P¼0.0004), whereas this was notobserved in cKS cases ( 2.2 mm, P¼0.32) or KSHV-positives (0.5 mm, P¼0.56). Leg-minus-forearm DTH difference was greaterin controls compared with cKS cases (P¼0.004) and KSHV-positives (P¼0.002). Leg-plus-forearm DTH was similar in controls(mean 28.2 mm) and cKS cases (24.5 mm, P¼0.60), but it was reduced in KSHV-positives (11.8 mm, P¼0.02), particularly in the leg(P¼0.004) and marginally in the forearm (P¼0.07).CONCLUSION: KS cases had weaker DTH only in the leg, whereas both body sites appeared weaker in KSHV-positives without KS.Both systemic and regional immune alterations may influence the development of this malignancy.
|Numero di pagine||4|
|Rivista||British Journal of Cancer|
|Stato di pubblicazione||Published - 2011|
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