Primary cutaneous T cell lymphomas (CTCL) represent a heterogeneous group of T lymphomas. Virus involvement in CTCL pathogenesis has been extensively investigated, but no data are available as to a causative role of parvovirus B19. The prevalence of parvovirus variants (B19, LaL1/K71, V9) was investigated by using two nested PCRs and a genotype-2 semiquantitative PCR (Q-PCR). Parvovirus DNA was detected in similar percentage in healthy skin controls (40%; n = 42), inXammatory dermatoses (ID) (41%; n = 80) and CTCL (34%; n = 76). Among variants, genotype-2 was more prevalent in ID (26%) and CTCL (22%) than in normal skin (14%; p < 0.05). genotype- 3 was never found in normal skin and was rare in ID. The only four pathological skin samples with a quantiWable genome copies/g DNA values in Q-PCR were ID. In conclusion, despite the skin represent a reservoir for genotype-1, parvovirus infection is not involved in the etiopathogenesis of CTCL.

Prevalence and significance of human parvovirus variants in skin from primary cutaneous T cell lymphomas, inflammatory dermatoses and healthy subjects

SIDOTI, Francesca;FIERRO, Maria Teresa;Costa C;BERGALLO, Massimiliano;COMESSATTI, Alessandra;NOVELLI, Mauro;MERLINO, Chiara;CAVALLO, Rossana;BERNENGO, Maria Grazia
2009

Abstract

Primary cutaneous T cell lymphomas (CTCL) represent a heterogeneous group of T lymphomas. Virus involvement in CTCL pathogenesis has been extensively investigated, but no data are available as to a causative role of parvovirus B19. The prevalence of parvovirus variants (B19, LaL1/K71, V9) was investigated by using two nested PCRs and a genotype-2 semiquantitative PCR (Q-PCR). Parvovirus DNA was detected in similar percentage in healthy skin controls (40%; n = 42), inXammatory dermatoses (ID) (41%; n = 80) and CTCL (34%; n = 76). Among variants, genotype-2 was more prevalent in ID (26%) and CTCL (22%) than in normal skin (14%; p < 0.05). genotype- 3 was never found in normal skin and was rare in ID. The only four pathological skin samples with a quantiWable genome copies/g DNA values in Q-PCR were ID. In conclusion, despite the skin represent a reservoir for genotype-1, parvovirus infection is not involved in the etiopathogenesis of CTCL.
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http://link.springer.com.offcampus.dam.unito.it/content/pdf/10.1007%2Fs00403-009-0954-6.pdf
Parvovirus; CTCL; Inflammatory dermatoses; healthy subjects
Sidoti F; Fierro MT; Costa C; Ponti R; Bergallo M; Comessatti A; Fumagalli M; Novelli M; Merlino C; Cavallo R; Bernengo MG.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2318/104737
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