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Valosin-containing protein and the pathogenesis of frontotemporal dementia associated with inclusion body myopathy

Jake B Guinto1, Gillian P Ritson, J Paul Taylor

  • 1Department of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine, 422 Curie Blvd., 605B Stellar-Chance Building, Philadelphia, PA, 19104-6140, USA.

Acta Neuropathologica
|April 26, 2007
PubMed

Insights

Frontotemporal dementia with inclusion body myopathy and Paget's disease of bone (IBMPFD), caused by VCP gene mutations, presents unique brain pathology. This review explores IBMPFD's distinct ubiquitin inclusions and VCP protein's role in cellular functions.

Area of Science:

  • Neuroscience
  • Genetics
  • Cell Biology

Background:

  • Frontotemporal dementia with inclusion body myopathy and Paget's disease of bone (IBMPFD) is a rare autosomal dominant disorder.
  • Mutations in the valosin-containing protein (VCP) gene are the known cause of IBMPFD.
  • The disease affects the central nervous system (CNS), muscles, and bones.

Purpose of the Study:

  • To review the current literature on IBMPFD.
  • To focus on the pathology of the disease, particularly CNS involvement.
  • To explore the biology of the VCP gene and its relation to IBMPFD.

Main Methods:

  • Literature review of existing studies on IBMPFD.
  • Analysis of CNS pathology, including ubiquitin and TAR DNA binding protein staining.
  • Examination of VCP protein's cellular functions and involvement in IBMPFD.

Main Results:

  • IBMPFD exhibits a unique pattern of ubiquitin pathology in the CNS.
  • These ubiquitin inclusions also stain positive for TAR DNA binding protein.
  • This finding links IBMPFD pathology to other forms of frontotemporal lobar degeneration (FTLD).

Conclusions:

  • VCP mutations lead to a distinct neuropathology in IBMPFD.
  • Understanding VCP's role in cellular processes is crucial for elucidating disease mechanisms.
  • Further research is needed to fully understand how VCP mutations cause multi-system disease.

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