4.7 Article

Detection of cutaneous prion protein deposits could help diagnose GPI-anchorless prion disease with neuropathy

期刊

EUROPEAN JOURNAL OF NEUROLOGY
卷 28, 期 6, 页码 2133-2137

出版社

WILEY
DOI: 10.1111/ene.14720

关键词

basement membrane; cutaneous biopsy; glycosylphosphatidylinositol anchor; laminin; prion

资金

  1. Japan Society for the Promotion of Sciences (JSPS) [17K07097]
  2. Grants-in-Aid for Scientific Research [17K07097] Funding Source: KAKEN

向作者/读者索取更多资源

Immunohistochemical detection of PrP in cutaneous samples revealed abnormal PrP deposits in patients with GPI-anchorless PrP disease, particularly localized at the basement membrane and colocalized with laminin. This method could be used for definitive diagnosis of the disease.
Background and purpose: To investigate prion protein (PrP) deposits in cutaneous tissues of patients of glycosylphosphatidylinositol (GPI)-anchorless prion diseases with neuropathy. Methods: Cutaneous tissue samples from three patients with GPI-anchorless prion diseases were obtained, two cutaneous biopsy samples from the lower leg of Case 1 (Y162X) and Case 3 (D178fs25), and a cutaneous sample taken from the abdomen during an autopsy of Case 2 (D178fs25). We performed immunohistochemistry for PrP to look for abnormal PrP deposits. Results: PrP deposits were observed in the dermal papilla, the sweat glands, the hair follicles, the arrector pili muscles, and peripheral nerves of all examined cases of GPI-anchorless prion disease with neuropathy. The abnormal PrP accumulation was frequently localized at the basement membrane, and colocalized with laminin. Conclusion: Immunohistochemical detection of PrP in cutaneous samples could be used to definitively diagnose GPI-anchorless PrP disease with neuropathy.

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