This review extensively profiles the published literature on CMT2F and distal hereditary motor neuropathy II (dHMN II), a similar neuropathy with exclusively motor symptoms that is also due to mutations in Hsp27.
Together, these findings suggest that the mitochondrial abnormalities in mutant Hsp27-induced neuropathies may be a primary cause of pathology, leading to further deficits in the mitochondrial axonal transport and onset of disease.
However, we present a family with a novel mutation in the C-terminus of HSP27 (p.Gln175X) [corrected] with a motor predominant distal neuropathy but with definite sensory involvement compatible with CMT2.