Abstract: Composition containing a chimeric neuregulin polypeptides and method of making such polypeptides are disclosed. The chimeric neuregulin comprises a first moiety of at least 10 amino acids, wherein the first moiety is derived from a first polypeptide; and a second moiety of at least 5 amino acids, wherein the second moiety is derived from a second polypeptide; wherein the first polypeptide is a neuregulin and the chimeric neuregulin exhibits an enhanced binding affinity to integrin, Erb 3, or Erb 4 comparing to that of the first neuregulin.
Abstract: Neuregulin, a known neuroprotein, has been found to ameliorate or prevent damage caused by mechanical or chemical assault to blood vessels and, when administered into the cerebral spinal fluid, can ameliorate damage to neuronal tissue caused by stroke or inflammation. Additionally, neuregulin has been found to be useful for enhancement of stem cell migration from the ventricle to the site of injury to the brain.