Zhongguo yi xue ke xue yuan xue bao. Acta Academiae Medicinae Sinicae · 2005
[Mechanism of alopecia in patients with paraneoplastic pemphigus].
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Zuo Ya-gang, Wang Bao-xi, Ma Dong-lai, Cao Bing-qing, Zhao Jing-hui, Guo Ying
Аннотация
OBJECTIVE: To investigate the relationship between the levels of antidesmoglein (DSG) 1, 3 antibodies in the sera of patients with paraneoplastic pemphigus (PNP) and alopecia.
METHODS: Sera from PNP patients, bullous pemphigoid patients, and normal healthy subjects were collected and 2 tissue samples from 2 healthy scalps were resected. Anti-DSG 1, 3 antibodies in the sera of PNP patients were detected by enzyme-linked immunosorbent assay (ELISA). Indirect immunofluorescent assay was used to detect whether the antibodies in the sera of PNP patients binds with the follicular epithelium of normal healthy scalp.
RESULTS: Anti-DSG3 autoantibody was strongly positive and anti-DSG1 weakly positive in one patient, while both two antibodies were negative in the other patient. Their sera could bind to keratinocytes and follicular epithelium in human scalp. Immunofluorescent signals were found on the intercellular epidermal cell surface and outer root sheath of the follicular epithelium. However, the immunofluorescent signals in the section incubating with serum of bullous pemphigoid were only found on basal membrane zone. No signals were found in the section incubating with normal healthy serum.
CONCLUSION: Alopecia in PNP patients are correlated with the anti-DSG3.
METHODS: Sera from PNP patients, bullous pemphigoid patients, and normal healthy subjects were collected and 2 tissue samples from 2 healthy scalps were resected. Anti-DSG 1, 3 antibodies in the sera of PNP patients were detected by enzyme-linked immunosorbent assay (ELISA). Indirect immunofluorescent assay was used to detect whether the antibodies in the sera of PNP patients binds with the follicular epithelium of normal healthy scalp.
RESULTS: Anti-DSG3 autoantibody was strongly positive and anti-DSG1 weakly positive in one patient, while both two antibodies were negative in the other patient. Their sera could bind to keratinocytes and follicular epithelium in human scalp. Immunofluorescent signals were found on the intercellular epidermal cell surface and outer root sheath of the follicular epithelium. However, the immunofluorescent signals in the section incubating with serum of bullous pemphigoid were only found on basal membrane zone. No signals were found in the section incubating with normal healthy serum.
CONCLUSION: Alopecia in PNP patients are correlated with the anti-DSG3.