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Review
. 1993;14(4):323-44.
doi: 10.1007/BF00192307.

FK 506: a novel immunosuppressant for treatment of autoimmune disease. Rationale and preliminary clinical experience at the University of Pittsburgh

Affiliations
Review

FK 506: a novel immunosuppressant for treatment of autoimmune disease. Rationale and preliminary clinical experience at the University of Pittsburgh

A W Thomson et al. Springer Semin Immunopathol. 1993.
No abstract available

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Figures

Fig. 1
Fig. 1
The molecular structure of the immunosuppressive macrolide FK 506 (mol. wt. 822 daltons) and of the less powerful, but similarly acting cyclic endecapeptide cyclosporin A (mol. wt. 1203 daltons)
Fig. 2
Fig. 2
The central role of CD4+ T helper (TH) lymphocytes and their cytokine products in the generation of effector mechanisms in autoimmunity. Additional mechanisms (not shown) include cytokine-driven activation (via IFN-γ) of macrophages leading to tissue lysis and via (IL-2) of natural killer cells and (via IL-6) of vascular endothelium. Most autoimmune diseases are probably a combination of all of these pathogenetic mechanisms. The site of action of FK 506 on the early event of antigen-induced CD4+ TH cell activation is depicted by the open arrow
Fig. 3
Fig. 3
a–d. Prevention of the development of experimental autoimmune thyroiditis and insulitis in thymectomized, x-irradiated female PVG/c rats treated with FK 506 starting after serological evidence of autoantibody (anti-thyroglobulin) production. a Lymphocytic thyroiditis with obliteration of thyroid follicles in untreated, control animals; b inhibition of thyroiditis by FK 506; c severe insulitis, which was evident in 30% of untreated disease control animals, and d prevention of insulitis by FK 506
Fig. 4
Fig. 4
Biochemical responses (serum total bilirubin, alkaline phosphatase, ALT and AST levels) in a representative responder with primary sclerosis cholangitis (PSC) treated with FK 506
Fig. 5
Fig. 5
Biochemical responses (serum total bilirubin, alkaline phosphatase, ALT and AST levels) in a representative responder with primary biliary cirrhosis (PBC) treated with FK 506
Fig. 6
Fig. 6
Biochemical responses (serum total bilirubin, alkaline phosphatase, ALT and AST levels) in a representative responder with chronic active hepatitis-autoimmune (CAH-A) treated with FK 506
Fig. 7
Fig. 7
a, b. Appearance of patient with severe, recalcitrant, chronic plaque psoriasis a before and b 4 weeks after start of treatment with FK 506
Fig. 8
Fig. 8
a, b. Effect of FK 506 treatment on psoriatic skin lesions. a IL-2 receptor α (IL-2Rα) chain-positive (CD25+) lymphocytes within the upper dermis in untreated active disease and b absence of IL-2Rα+ cells in lesional skin of the same patient, 4 weeks after start of systemic FK 506 therapy. Note also the marked reduction in epidermal keratinocyte proliferation
Fig. 9
Fig. 9
The influence of FK 506 therapy in a case of type-1 diabetes (described in the text). The figure shows serial results of a 6 ca/kg sustacal stimulation test (max 360 ml). Bloods were drawn at −5, 0, 15, 30, 60, 120, 180, and 300 min. The figure shows the basal and maximally stimulated C-peptide levels that reflect endogenous insulin secretion over time after start of FK 506 treatment. The patient is currently off insulin in a complete remission. □ Basal; ■ stimulated
Fig. 10
Fig. 10
Three patterns of response to FK 506 in nephrotic syndrome, illustrated by individual patients (nos 1–3). For a fuller description see the text.—■—#1;––#2;formula image#3
Fig. 11
Fig. 11
Serum IL-2R and FK 506 levels in a patient with steroid-resistant nephrotic syndrome who showed a dramatic improvement in a renal function following the start of FK 506 therapy. For additional details, see the text. IL-2R Normal;—●— IL-2R Patient; —◆–– FK 506 level
Fig. 12
Fig. 12
Influence of FK 506 treatment on the mean incidences of IL-2Rα+ CD4+ and CD8+ T cells in the peripheral blood of patients with nephrotic syndrome or PBC treated for various times with FK 506. Values (means ± 1 SD) obtained in normal healthy adults are also shown. Number of patients in parentheses

References

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    1. Arita C, Hotokebuchi T, Miyahara H, Arai K, Sugioka Y, Takagishi K, Kaibara N. Inhibition by FK 506 of established lesions of collagen-induced arthritis in rats. Clin Exp Immunol. 1990;832:456. - PMC - PubMed
    1. Baker BS, Fry L. The immunology of psoriasis. Br J Dermatol. 1992;126:1. - PubMed
    1. Canadian-European Randomized Control Trial Group. Cyclosporin-induced remission of IDDM after early intervention. Association of 1 year of cyclosporin treatment with enhanced insulin secretion. Diabetes. 1988;37:1574. - PubMed
    1. Carroll PB, Strasser S, Alejandro R. The effect of FK 506 on cyclophosphamide-induced diabetes in the NOD mouse model. Transplant Proc. 1991;23:3348. - PubMed

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