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Successful treatment of alopecia areata-like hair loss with the contact sensitizer squaric acid dibutylester (SADBE) in C3H/HeJ mice.
J Invest Dermatol. 1999 Jul; 113(1):61-8.JI

Abstract

A type of hair loss closely resembling human alopecia areata has been described in C3H/HeJ mice. In order to test the assumed analogy with human alopecia areata, we investigated the efficacy of treatment with the contact allergen squaric acid dibutylester. In 12 C3H/HeJ mice with alopecia areata an allergic contact dermatitis was induced and elicited weekly on one side of the back by topical applications of squaric acid dibutylester. Overt hair regrowth was observed only on the treated side of the back in nine of 12 mice. Histopathologic examination revealed a change in the distribution of the inflammatory infiltrate from a dense perifollicular lymphocytic infiltrate around the mid and lower regions of hair follicles in untreated skin to a uniform presence in the upper dermis in treated skin. Immunohistomorphometric studies revealed that treatment with squaric acid dibutylester increased the CD4+/CD8+ ratio from approximately 1:2 in untreated alopecia areata to 1:1 in treated alopecia areata. Additional immunohistochemical investigations showed an aberrant expression of major histocompatibility complex class I, major histocompatibility complex class II and intercellular adhesion molecule 1 on keratinocytes of the mid and lower parts of hair follicles in untreated alopecia areata. In successfully treated skin ectopic major histocompatibility complex class I and II expression was clearly reduced, whereas intercellular adhesion molecule 1 expression showed only minor changes. In conclusion, alopecia areata-like hair loss in C3H/HeJ mice responded to treatment with the contact sensitizer squaric acid dibutylester analogous to human alopecia areata. Moreover, successful treatment changes the aberrant expression of major histocompatibility complex class I and II in a way similar to that observed in human alopecia areata. These observations support the concept that alopecia areata-like hair loss in C3H/HeJ mice can be utilized as an appropriate model for the study of human alopecia areata.

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Authors+Show Affiliations

Freyschmidt-Paul P
Department of Dermatology, Philipp University, Marburg, Germany.
Sundberg JP
No affiliation info available
Happle R
No affiliation info available
McElwee KJ
No affiliation info available
Metz S
No affiliation info available
Boggess D
No affiliation info available
Hoffmann R
No affiliation info available

MeSH

AllergensAlopecia AreataAnimalsCD4-CD8 RatioCyclobutanesDermisEpitheliumFemaleHairHair FollicleHistocompatibility Antigens Class IHistocompatibility Antigens Class IIIntercellular Adhesion Molecule-1LymphocytesMaleMiceMice, Inbred C3HSebaceous GlandsSkinTreatment Outcome

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

10417620

Citation

Freyschmidt-Paul, P, et al. "Successful Treatment of Alopecia Areata-like Hair Loss With the Contact Sensitizer Squaric Acid Dibutylester (SADBE) in C3H/HeJ Mice." The Journal of Investigative Dermatology, vol. 113, no. 1, 1999, pp. 61-8.
Freyschmidt-Paul P, Sundberg JP, Happle R, et al. Successful treatment of alopecia areata-like hair loss with the contact sensitizer squaric acid dibutylester (SADBE) in C3H/HeJ mice. J Invest Dermatol. 1999;113(1):61-8.
Freyschmidt-Paul, P., Sundberg, J. P., Happle, R., McElwee, K. J., Metz, S., Boggess, D., & Hoffmann, R. (1999). Successful treatment of alopecia areata-like hair loss with the contact sensitizer squaric acid dibutylester (SADBE) in C3H/HeJ mice. The Journal of Investigative Dermatology, 113(1), 61-8.
Freyschmidt-Paul P, et al. Successful Treatment of Alopecia Areata-like Hair Loss With the Contact Sensitizer Squaric Acid Dibutylester (SADBE) in C3H/HeJ Mice. J Invest Dermatol. 1999;113(1):61-8. PubMed PMID: 10417620.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Successful treatment of alopecia areata-like hair loss with the contact sensitizer squaric acid dibutylester (SADBE) in C3H/HeJ mice. AU - Freyschmidt-Paul,P, AU - Sundberg,J P, AU - Happle,R, AU - McElwee,K J, AU - Metz,S, AU - Boggess,D, AU - Hoffmann,R, PY - 1999/7/27/pubmed PY - 1999/7/27/medline PY - 1999/7/27/entrez SP - 61 EP - 8 JF - The Journal of investigative dermatology JO - J Invest Dermatol VL - 113 IS - 1 N2 - A type of hair loss closely resembling human alopecia areata has been described in C3H/HeJ mice. In order to test the assumed analogy with human alopecia areata, we investigated the efficacy of treatment with the contact allergen squaric acid dibutylester. In 12 C3H/HeJ mice with alopecia areata an allergic contact dermatitis was induced and elicited weekly on one side of the back by topical applications of squaric acid dibutylester. Overt hair regrowth was observed only on the treated side of the back in nine of 12 mice. Histopathologic examination revealed a change in the distribution of the inflammatory infiltrate from a dense perifollicular lymphocytic infiltrate around the mid and lower regions of hair follicles in untreated skin to a uniform presence in the upper dermis in treated skin. Immunohistomorphometric studies revealed that treatment with squaric acid dibutylester increased the CD4+/CD8+ ratio from approximately 1:2 in untreated alopecia areata to 1:1 in treated alopecia areata. Additional immunohistochemical investigations showed an aberrant expression of major histocompatibility complex class I, major histocompatibility complex class II and intercellular adhesion molecule 1 on keratinocytes of the mid and lower parts of hair follicles in untreated alopecia areata. In successfully treated skin ectopic major histocompatibility complex class I and II expression was clearly reduced, whereas intercellular adhesion molecule 1 expression showed only minor changes. In conclusion, alopecia areata-like hair loss in C3H/HeJ mice responded to treatment with the contact sensitizer squaric acid dibutylester analogous to human alopecia areata. Moreover, successful treatment changes the aberrant expression of major histocompatibility complex class I and II in a way similar to that observed in human alopecia areata. These observations support the concept that alopecia areata-like hair loss in C3H/HeJ mice can be utilized as an appropriate model for the study of human alopecia areata. SN - 0022-202X UR - https://www.unboundmedicine.com/medline/citation/10417620/Successful_treatment_of_alopecia_areata_like_hair_loss_with_the_contact_sensitizer_squaric_acid_dibutylester__SADBE__in_C3H/HeJ_mice_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0022-202X(15)40534-2 DB - PRIME DP - Unbound Medicine ER -