Hereditary spastic paraplegia: Clinical-genetic characteristics and evolving molecular mechanisms

Temistocle Lo Giudice, Federica Lombardi, Filippo Maria Santorelli, Toshitaka Kawarai, Antonio Orlacchio

Research output: Contribution to journalArticle

145 Citations (Scopus)

Abstract

Hereditary spastic paraplegia (HSP) is a group of clinically and genetically heterogeneous neurological disorders characterized by pathophysiologic hallmark of length-dependent distal axonal degeneration of the corticospinal tracts. The prominent features of this pathological condition are progressive spasticity and weakness of the lower limbs. To date, 72 spastic gait disease-loci and 55 spastic paraplegia genes (SPGs) have been identified. All modes of inheritance (autosomal dominant, autosomal recessive, and X-linked) have been described. Recently, a late onset spastic gait disorder with maternal trait of inheritance has been reported, as well as mutations in genes not yet classified as spastic gait disease. Several cellular processes are involved in its pathogenesis, such as membrane and axonal transport, endoplasmic reticulum membrane modeling and shaping, mitochondrial function, DNA repair, autophagy, and abnormalities in lipid metabolism and myelination processes. Moreover, recent evidences have been found about the impairment of endosome membrane trafficking in vesicle formation and about the involvement of oxidative stress and mtDNA polymorphisms in the onset of the disease. Interactome networks have been postulated by bioinformatics and biological analyses of spastic paraplegia genes, which would contribute to the development of new therapeutic approaches.

Original languageEnglish
Pages (from-to)518-539
Number of pages22
JournalExperimental Neurology
Volume261
DOIs
Publication statusPublished - 2014

Fingerprint

Hereditary Spastic Paraplegia
Neurologic Gait Disorders
Paraplegia
Mitochondrial DNA
Membranes
Genes
Pyramidal Tracts
Axonal Transport
Endosomes
Autophagy
Nervous System Diseases
Computational Biology
Lipid Metabolism
DNA Repair
Endoplasmic Reticulum
Lower Extremity
Oxidative Stress
Mutation
Therapeutics

Keywords

  • Hereditary spastic paraplegia
  • Molecular genetics
  • Neurodegenerative mechanisms
  • Neurology
  • Phenotype

ASJC Scopus subject areas

  • Neurology
  • Developmental Neuroscience
  • Medicine(all)

Cite this

Hereditary spastic paraplegia : Clinical-genetic characteristics and evolving molecular mechanisms. / Lo Giudice, Temistocle; Lombardi, Federica; Santorelli, Filippo Maria; Kawarai, Toshitaka; Orlacchio, Antonio.

In: Experimental Neurology, Vol. 261, 2014, p. 518-539.

Research output: Contribution to journalArticle

Lo Giudice, Temistocle ; Lombardi, Federica ; Santorelli, Filippo Maria ; Kawarai, Toshitaka ; Orlacchio, Antonio. / Hereditary spastic paraplegia : Clinical-genetic characteristics and evolving molecular mechanisms. In: Experimental Neurology. 2014 ; Vol. 261. pp. 518-539.
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