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Proliferating cell nuclear antigen labelling index in localised pigmented villo-nodular synovitis and its relationship to the size of nodules

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Abstract 

Proliferating cell nuclear antigen (PCNA) is one of the cell cycle-related proteins directly involved in DNA synthesis. It is a marker of cellular proliferation and has been shown to correlate with ploidy and proliferative activity of cells. Its expression has been used to estimate the growth fraction of human cancer and its prognostic value. Pigmented villo-nodular synovitis (PVNS) is characterised by a nodular lesion in the paratendinous synovial tissue or, less frequently, in a joint. Whether PVNS is a neoplastic or inflammatory lesion remains controversial. We have studied immunohistochemical PCNA expression with pc10 monoclonal antibody in 16 paraffin sections, in 16 cases of localised PVNS, or giant cell tumour of tendon sheath. We have found significant correlation between the size of the lesions and PCNA-LI (labelling index).

Résumé

 L’antigène nucleaire de prolifération cellulaire (PCNA) est une des proteines du cycle cellulaire et il est impliqué directement dans la synthèse du DNA. Il s’agit certainement d’un indicateur de prolifération cellulaire. Son expression a été employé pour évaluer l’index de prolifération de la tumeur humaine et son valeur au point de vue pronostique. La synovite villo-nodulaire pigmentée (PVNS) est caractérisée par une lésion nodulaire plus fréquente dans les localisations tendineuses que dans les articulations. S’il s’agit d’un processus néoplasique ou d’une lésion inflammatoire reste controversée. Nous avons étudiés l’expression immunohistochimique du PCNA avec l’anticorps monoclonal PC10 en 16 lames paraffinés relatives à 16 synovites villo-nodulaires pigmentées localisées ou tumeurs à cellules geantes des gaines tendineuses. Nous avons trouvés une corrélation significative entre les dimensions des lésions nodulaires et le PCNA labelling index (PCNA-LI).

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Accepted: 29 February 2000

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Rosa, M., Galli, M., Fadda, G. et al. Proliferating cell nuclear antigen labelling index in localised pigmented villo-nodular synovitis and its relationship to the size of nodules. International Orthopaedics SICOT 24, 197–201 (2000). https://doi.org/10.1007/s002640000147

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  • DOI: https://doi.org/10.1007/s002640000147

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