Page 1210 - Clinical Immunology_ Principles and Practice ( PDFDrive )
P. 1210
1174 ParT TEN Prevention and Therapy of Immunological Diseases
38
In contrast, NCX-1015 did not activate primary osteoclast activity morning stiffness. Further clinical developments seem likely
in vitro, whereas prednisolone did. This lack of adverse effect of to follow (e.g., new GCR ligands and liposome encapsulation),
NCX-1015 seems to be chiefly caused by NO. It has been suggested all with a view to improving the risk–benefit ratio of GC therapy
that posttranslational modification of GCR (tyrosine nitration) and the well-being of patients.
by NCX-1015 may explain its enhanced antiinflammatory activity.
Moreover, NCX-1015 potently stimulates IL-10 production, sug- ON THE HOrIZON
gesting that nitrosteroids induce Tregs that negatively modulate
inflammation. However, further work is needed to confirm the • Selective activators of transrepression (SEGRA)
• Nitrosteroids (with effect of nitric oxide on endothelium)
utility of nitrosteroids in clinical practice. • Modified release steroids
Long-Circulating Liposomal Glucocorticoids • Liposomal encapsulation
• Optimized combinations with biologicals
The antiinflammatory efficacy of GCs can be improved by the
additional benefits of nongenomic actions at high GC concentra- ACKNOWLEDGMENTS
tions. This has led to the use of long-circulating liposomal GCs
in experimental models. In rats with experimental autoimmune This chapter has been revised and updated from the version in
encephalitis, GC-containing liposomes accumulated at sites of the previous edition. The editors are grateful to Frank Buttgereit,
inflammation, reaching concentrations >10–5 mol/L for ≥18 Hans Bilsma and Markus Seibel for their contributions to previous
hours. These liposomes may be therapeutically superior to editions and for their permission to let us update the chapter.
conventional intravenous high-dose GC therapy, as evidenced
by their successful use in rats with adjuvant-induced arthritis. A Please check your eBook at https://expertconsult.inkling.com/
single injection of 10 mg/kg liposomal prednisolone phosphate for self-assessment questions. See inside cover for registration
resulted in complete remission of the inflammatory response details.
for almost a week. In contrast, the same dose of unencapsulated
prednisolone phosphate did not reduce inflammation and had
only a slight effect after repeated daily injections. It may be that REFERENCES
preferential delivery of GCs to the site of inflammation leads to
very high GC concentrations at the inflamed joint, but lower 1. Buttgereit F, Straub RH, Wehling M, et al. Glucocorticoids in the
plasma concentrations with a consequent lower rate of adverse treatment of rheumatic diseases. An update on mechanisms of action.
Arthritis Rheum 2004;50:3408–17.
effects. These are very promising developments that exploit 2. Caplan A, Fett N, Rosenbach M, et al. Prevention and management of
the broad spectrum of therapeutically relevant genomic and glucocorticoid-induced side effects: a comprehensive review of
nongenomic GC actions at the site of inflammation. glucocorticoid pharmacology and bone health. J Am Acad Dermatol
2017;76:1–9.
Combining Prednisolone and Dipyridamole 3. Ramsey-Goldman R. Missed opportunities in physician management of
Another interesting recent development is the selective amplifica- glucocorticoid-induced osteoporosis? Arthritis Rheum 2002;46:3115–20.
tion of GC antiinflammatory activity through synergistic 4. Walsh LJ, Wong CA, Pringle M, et al. Use of oral corticosteroids in the
18
multitarget action with another drug. The combination of community and the prevention of secondary osteoporosis: a cross section
prednisolone and the antithrombotic drug dipyridamole syner- study. Br Med J 1996;313:344–6.
gistically suppresses the release of proinflammatory cytokines 5. Grbesa I, Hakim O. Genomic effects of glucocorticoids. Protoplasma
2017;254:1175–85.
and produces antiinflammatory activity in acute and chronic 6. Greulich F, Hemmer MC, Rollins DA, et al. There goes the neighborhood:
disease models (including arthritis) at a subtherapeutic dose of assembly of transcriptional complexes during the regulation of
prednisolone. This approach may create a dissociated activity metabolism and inflammation by the glucocorticoid receptor. Steroids
profile with an increased therapeutic window through cellular 2016;114:7–15.
network selective amplification of GC-mediated antiinflammatory 7. Petta I, Dejager L, Ballegeer M, et al. The interactome of the
18
signalling. However, the exact molecular mechanism underlying glucocorticoid receptor and its influence on the actions of glucocorticoids
the observed synergy and multitarget action of these two drugs in combatting inflammatory and infectious diseases. Microbiol Mol Biol
remains obscure. Rev 2016;80:495–522.
8. Murphy PJ, Morishima Y, Chen H, et al. Visualization and mechanism of
assembly of a glucocorticoid receptor-Hsp70 complex that is primed for
CONCLUSIONS subsequent Hsp90-dependent opening of the steroid binding cleft. J Biol
Chem 2003;278:34764–73.
GCs are extremely valuable antiinflammatory agents with a range 9. Davies TH, Ning YM, Sánchez ER. A new first step in activation of steroid
of actions that are useful in the management of inflammatory receptors. J Biol Chem 2002;277:4597–600.
conditions, including arthritis and asthma. Combination therapy 10. Yudt MR, Jewell CM, Bienstock RJ, et al. Molecular origins for the
with biological agents may achieve superior benefit in rheuma- dominant negative function of human glucocorticoid receptor beta. Mol
37
tological disease compared with either class of treatment alone, Cell Biol 2003;23:4319–30.
but GCs will remain important drugs for many years to come. 11. Rodriguez JM, Monsalves-Alvarez M, Henriquez S, et al. Glucocorticoid
Recent research on GCs has highlighted the effects of cytosolic resistance in chronic diseases. Steroids 2016;115:182–92.
GCRs on intracellular signaling, transcription processes, and 12. Croxtall JD, Choudhury Q, Flower RJ. Glucocorticoids act within minutes
gene expression. Exploration of membrane-bound GCRs, to inhibit recruitment of signaling factors to activated EGF receptors
through a receptor-dependent, transcription-independent mechanism. Br
dose–effect relationships, and the timing of GC administration J Pharmacol 2000;130:289–98.
have stimulated intensive research activity aimed at improving 13. Hafezi-Moghadam A, Simoncini T, Yang E, et al. Acute cardiovascular
the efficacy–risk ratio. Modified-release prednisone has been protective effects of corticosteroids are mediated by nontranscriptional
already approved for the treatment of RA and the associated activation of endothelial nitric oxide synthase. Nat Med 2002;8:473–9.

