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Rom J Intern Med. 1998 Jul-Dec;36(3-4):251-9.

The interleukin-1, interleukin-2, interleukin-6 and tumour necrosis factor alpha serological levels in localised and systemic sclerosis.

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  • 1Dermatological Research Center, Hospital for Dermatology, Bucharest, Romania.

Abstract

Serological level of interleukin-1 (IL-1), Interleukin-2 (IL-2), Interleukin-6 (IL-6) and tumour necrosis factor (TNF) alpha was investigated in 26 patients with scleroderma, divided into three lots, by the extension and the progress of the disease. Determinations were performed by ELISA in attack and in remission (after treatment with prednison). Normal values: IL-1 (0-5 pg/ml), IL-2 (0-5 pg/ml), IL-6 (5-15 pg/ml), TNF (0-16 pg/ml). Lot A. Results obtained at the first determination showed that IL-1 is elevated in 4 cases (10-15 pg/ml), IL-2 in 5 cases (10-32 pg/ml), IL-6 in 5 cases (15-42 pg/ml) and TNF in 4 cases (18-34 pg/ml). In the second determination IL-1 was increased in 1 case (8 pg/ml), IL-2 in 1 case (9 pg/ml), IL-6 in 2 cases (12 pg/ml) and TNF was normal. Lot B. In the first determination IL-1 was elevated in 5 cases (8-12 pg/ml), IL-2 in 5 cases (10-15 pg/ml), IL-6 in 7 cases (16-20 pg/ml) and TNF was raised in 3 cases (18-25 pg/ml). At the second determination IL-1 showed normal values in all the cases, IL-2 was raised in 2 cases (10 pg/ml), IL-6 in 2 cases (12.15 pg/ml), TNF in 1 case (20 pg/ml). Lot C. In the first determination there were raised values in 4 cases for IL-1 (6-8 pg/ml), 3 cases for IL-2 (10-18 pg/ml), 5 cases for IL-6 (18-20 pg/ml), 2 cases for TNF (20 pg/ml). At the second determination IL-2 was elevated in 1 case (10 pg/ml), IL-6 in 1 case (15 pg/ml). We consider that in scleroderma there is a disturbance of the investigated cytokines due to the activation and involvement of the secretory cells into the pathogenesis of the disease. The increase of the serological levels of IL-1, IL-2, IL-6 and TNF depends on the extension of the lesions and the clinical and biological activity periods of the disease. The absence of the increase of the serological levels does not exclude their activity at the lesional site.

PMID:
10822522
[PubMed - indexed for MEDLINE]
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