Transplantation of human cord blood-derived multipotent stem cells (CB-SCs) enhances the recovery of Parkinson in rats

Transpl Immunol. 2022 Dec:75:101701. doi: 10.1016/j.trim.2022.101701. Epub 2022 Aug 28.


Earlier published research showed that cord blood-derived multipotent stem cells (CB-SCs) exhibited the intrinsic expression of specific transcription factors (e.g., En1, Nurr1 and Wnt1) and seems to be induced to form dopamine neurons in vitro. In this research, we further investigated the therapeutic potential of CB-SCs in 6-hydroxydopamine lesioned Parkinson's disease (PD) rats. The results of PCR analysis showed that CB-SCs could express transcription factors associated with pluripotentiality and dopaminergic differentiation (e.g., Klf4, c-Myc, Nanog, Sox2, Ngn2, and Nurr1). After being transplanted into the striatum and substantia nigra of PD rats, most of CB-SCs (>90%) developed a fate commitment to dopaminergic differentiation, expressed as the expression of tyrosine hydroxylase (TH) and dopamine transporter (DAT). The improvement effect of cell transplantation on dyskinesia in PD rats was better than that in sham control group. Moreover, higher levels of TH protein in brain homogenates further demonstrated that there were more surviving dopamine neurons in the brain of transplanted PD rats. Study concluds, CB SCS transplantation could promote the regeneration of dopamine neurons and behavioral recovery of PD rats.

Keywords: Parkinson's disease; Rat model; Stem cells; Transplantation; Umbilical cord blood.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Disease Models, Animal
  • Dopamine / metabolism
  • Dopaminergic Neurons / metabolism
  • Dopaminergic Neurons / transplantation
  • Fetal Blood / metabolism
  • Humans
  • Multipotent Stem Cells / metabolism
  • Parkinson Disease* / therapy
  • Rats
  • Transcription Factors
  • Tyrosine 3-Monooxygenase / metabolism


  • Tyrosine 3-Monooxygenase
  • Dopamine
  • Transcription Factors