A URINE TEST FOR THE DIAGNOSIS OF PRION DISEASES

摘要

The present invention relates to a method for detecting the presence of the abnormal isoform of prion protein (PrPSC) in a urine sample of a subject. The method of the invention comprising the steps of: (a) providing a urine sample of said subject; (b) isolating from said sample all proteins, preferably, isolating proteins having a molecular weight higher than about 8 Kda; (c) optionally, and preferably, subjecting the proteins obtained in step (b) to protease digestion, and isolating from the mixture obtained in step (c) any protease resistant proteins; and (d) detecting the presence of PrPSC in the protease resistant fraction obtained in step (c) by a suitable detection technique.Furthermore, the invention further relates to methods for diagnosing a prion disease in a subject and for screening donors of blood samples for the presence of prion diseases. The invention further provides for a diagnostic kit for diagnosing a prion disease in a subject.