Compositions and methods for treatment and prevention of Alzheimer's disease
The present invention provides methods and compositions for reducing internalization and/or trafficking of tau in neuronal cells comprising contacting the cells with an effective amount of an LRP1 and/or SorLA antagonist. The invention further provides a method of treating or preventing Alzheimer's disease in a subject in need thereof, comprising administering to the subject an effective amount of an LRP1 and/or SorLA antagonist.
1 . A method of reducing tau internalization and/or trafficking in neuronal cells to treat Alzheimer's disease in a subject, comprising contacting the neuronal cells of the subject with i) an effective amount of a SorLA antagonist; or ii) an effective amount of an LRP1 antagonist and a SorLA antagonist, wherein the SorLA antagonist is an siRNA and the LRP1 antagonist is receptor associated protein (RAP) or a fragment thereof comprising the D3 domain.
2 . The method of claim 1 , wherein the LRP1 antagonist is receptor associated protein (RAP).
3 . The method of claim 1 , wherein the effective amount of a SorLA antagonist or the effective amount of an LRP1 antagonist and the SorLA antagonist are administered to the subject intrathecally and/or intraventricularly.
4 . The method of claim 1 , wherein the siRNA targets a portion of SorLA mRNA corresponding to SEQ ID NO:2.
5 . The method of claim 1 , wherein the siRNA has a target sequence comprising any of SEQ ID NOS:5-8.
6 . The method of claim 1 , wherein the siRNA has a target sequence comprising SEQ ID NO:5.
7 . The method of claim 1 , wherein the siRNA has a target sequence comprising SEQ ID NO:6.
8 . The method of claim 1 , wherein the siRNA has a target sequence comprising SEQ ID NO:7.
9 . The method of claim 1 , wherein the siRNA has a target sequence comprising SEQ ID NO:8.