NDRG1 and polyneuropathy: As such, when our result of immunolocalization of NDRG1 to the Schwann cell cytoplasm is combined with the previously reported pathology of the polyneuropathies of Greyhounds and Alaskan malamutes, it seems that the expression of NDRG1 in Schwann cells is indispensable for both the Schwann cell and the axon.