Tacrolimus and pimecrolimus: from clever prokaryotes to inhibiting calcineurin and treating atopic dermatitis.
Abstract
Tacrolimus ointment, a topical inhibitor of the phosphatase calcineurin, has recently been approved in the United States for use in the treatment of atopic dermatitis. It is the first topical immune suppressant that is not one of the hydrocortisone derivatives, important allies in dermatology for nearly 50 years. Although tacrolimus is less able to penetrate thick skin than glucocorticoids, it does not cause dermal atrophy, an important advantage over the hydrocortisone class. Pimecrolimus (ASM 981), a newer calcineurin inhibitor closely related to tacrolimus, is also being developed for atopic dermatitis therapy. Pimecrolimus has an altered skin penetration profile but the same mechanism of action as tacrolimus. In this review we chronicle the discovery of the calcineurin inhibitors, their presumed evolutionary role as a bacterial "smart bomb" against fungi, molecular and cellular mechanisms of action in the immune system, systemic and topical side effects, efficacy in atopic dermatitis, and future applications within the specialty of dermatology. Particular attention is given to the issues of systemic absorption of tacrolimus, the conditions in which absorption can become a concern, efficacy relative to glucocorticoids, and the choice of 0.03% or 0.1% tacrolimus ointment for use in adults and children.
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Authors
Nghiem P, Pearson G, Langley RG
Institution
Cutaneous Oncology Unit, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA. pnghiem@partners.org
Source
Journal of the American Academy of Dermatology 46:2 2002 Feb pg 228-41MeSH
Administration, TopicalAdult
Calcineurin
Child
Child, Preschool
Clinical Trials as Topic
Dermatitis, Atopic
Female
Follow-Up Studies
Humans
Immunosuppressive Agents
Male
Middle Aged
Risk Assessment
Tacrolimus
Pub Type(s)
Journal ArticleResearch Support, Non-U.S. Gov't
Review
Language
eng
PubMed ID
11807435
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