Current Neurology and Neuroscience Reports

, Volume 2, Issue 3, pp 259–266 | Cite as

Genetic analysis of multiple sclerosis

  • Alastair Compston
  • Stephen Sawcer


The increased recurrence risk within families indicates a role for genetic factors in the etiology of multiple sclerosis. Genes may influence susceptibility to the development of multiple sclerosis and the subsequent course of the disease. To date, associations have only been demonstrated consistently with class II major histocompatibility complex (MHC) alleles. The relatively low yield from additional candidate gene studies is only modestly advanced by several whole-genome linkage analyses, and by the first in a series of planned whole-genome linkage disequilibrium screens for allelic associations. The aims of linkage and association are to narrow the search for chromosomal regions encoding genes for multiple sclerosis and, with information from the human gene project, suggest new positional candidates. In time, it is expected that these genes will include some that confer susceptibility to the general process of autoimmunity, others that are specific for multiple sclerosis in all populations, some that act only in defined ethic groups, and those that determine particular phenotypes or shape the clinical course. These genetic analyses are predicated on the assumption that multiple sclerosis is one disease; a major part of future studies will be to resolve the question of disease heterogeneity in multiple sclerosis. When eventually in place, the potential of this genetic knowledge for improved understanding of the pathogenesis of multiple sclerosis and designing novel treatments is considerable.


Multiple Sclerosis Linkage Disequilibrium Major Histocompatibility Complex Human Leukocyte Antigen Human Leukocyte Antigen Class 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Current Science Inc 2002

Authors and Affiliations

  • Alastair Compston
    • 1
  • Stephen Sawcer
    • 1
  1. 1.University of Cambridge Neurology Unit, Addenbrooke’s HospitalCambridgeUK

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