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REVIEW : Gene Expression in Nerve Regeneration

Molecular Neurobiology Laboratory, Department of Neurology, University of Düsseldorf Düsseldorf

Christian Korfhage

Molecular Neurobiology Laboratory, Department of Neurology, University of Düsseldorf Düsseldorf

Hans Werner Müller

Molecular Neurobiology Laboratory, Department of Neurology, University of Düsseldorf Düsseldorf

Injury of peripheral nerve in mammals leads to a complex but stereotypical pattern of histological events that comprise a highly reproducible sequence of degenerative reactions (Wallerian degeneration) succeeded by regenerative responses. These reactions are based on a corresponding sequence of cellular and mo lecular interactions that, in turn, reflect the differential expression of specific genes with functions in nerve degeneration and repair. We report on more than 60 genes and their products that show a specific pattern of regulation following peripheral nerve lesion. The group of regulated genes encoding, e.g., transcription factors, growth factors and their receptors, cytokines, neuropeptides, myelin proteins and lipid carriers, and cytoskeletal proteins as well as extracellular matrix and cell adhesion molecules. We describe and compare the distinct time-courses and cellular origin of expression and further discuss established or putative mo lecular interrelationships and functions with respect to the contribution of these genes/gene products to the molecular regeneration program of the PNS. NEUROSCIENTIST 3:112-122, 1997

Key Words: KEY WORDS Degeneration • Gene regulation • Myelin • Nerve injury • Peripheral nervous system (PNS) • Schwann cell

The Neuroscientist, Vol. 3, No. 2, 112-122 (1997)
DOI: 10.1177/107385849700300210


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