PrP protein in other tissues

[Mr A Yool]

Hello everyone,

Another prion question ...

Is the PrP prion protein found exclusively in nervous cells or
is it more widely distributed throughout the body?

In particular, does anyone know of any appropriate references which
can help here (we're presently tracking down the references people
gave us to our previous questions!).

Thanks in advance for any assistance.

W. J. Edmunds