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Minerva Medica 2005 October;96(5):379-90

language: Italian

Study of lymphocyte subpopulations in chronic autoimmune inflammatory rheumatic diseases. ii. polymyalgia rheumatica: behaviour of lymphocyte subpopulations during treatment with two different corticosteroids

Coaccioli S., Pinoca F., Giuliani M., Sabatini C., Puxeddu A.


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Aim. The aim of this paper was to study the distribution of CD8+ subsets, of soluble receptors of CD8 and IL-2 during a steroid treatment with prednisone and deflazacort.
Methods. Forty-eight patients (9 males and 39 females, mean age 69.4(6.5 years) with active polymyalgia rheumatica (ESR 74 (18 mm, 1st h) were studied. In order to determine the distribution of lymphocyte subpopulations a panel of monoclonal antibodies was utilised. Flow cytometry with a FACSCAN machine and ELISA method were utilized.
Results. At base-time in comparison with normal subjects: reduction (P<0.05) of CD4-/CD8+ (356±112/mL vs 564(132/mL), due to reduction (P<0.001) of CD8+bright (224(86/mL vs 426±124/mL) and CD8+bright/CD57- (123±44/mL vs 256(58/mL); increasing (P<0.001) of sCD8 (514±123 U/mL vs 312±102 U/mL) and (P<0.005) sIL-2r (984(346 U/mL vs 244±58 U/mL). Group-PDN: significant (P<0.001) reduction of CD4-/CD8+ (466±102), CD8+bright (302(74), CD8+bright/CD57- (186±51), sCD8 (418±96) and of sIL-2r (450±163) at 1st week, and toward the normal range at 1st month. Group-DFZ: normal values at 6th month: CD4-/CD8+ (497±133), CD8+bright (401±98), CD8+bright/CD57- (240±64), sCD8 (317±82), while sIL-2r è (P<0.0005) higher vs group-PDN. Group-PDN: VES <50 at 1st week, normal value (14±7) at 3rd month; PCR, 2.2±1.2 at 3rd month and 1(0.8 at 6th month. Group-DFZ: VES >20 (24±5) at 6th month e PCR increased.
Conclusion. PDN shows a faster action vs DFZ. DFZ does not seem to be able in reducing sIL-2r probably showing a persistent inflammation and immune activation status.

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