Enhanced survival and function of neural stem cells-derived dopaminergic neurons under influence of olfactory ensheathing cells in parkinsonian rats

Shubha Shukla, Rajnish Kumar Chaturvedi, Kavita Seth, Neeta Roy, Ashok Kumar Agrawal

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Transplantation of neural stem cell (NSC)-derived dopamine (DA) neurons is associated with low survival of cells, which could be due to limited striatal innervations and uneven distribution of graft because of its dense neuronal core, limited host-graft interaction, poor axonal outgrowth, lack of continuous neurotrophic factors supply, and an absence of cell adhesion molecules mediated appropriate developmental cues. Olfactory ensheathing cells (OEC) express a variety of growth factors and cell adhesion molecules and promote axonal regrowth and functional recovery in spinal cord injury in animal models and patients. In the present study, we explored the possibility to increase the survival, function, axonal outgrowth and striatal reinnervation of NSC by co-grafting with OEC in 6-OHDA lesioned parkinsonian rats. In the presence of OEC, significantly enhanced survival of NSC-derived DA neurons and axonal fiber outgrowth was evident in the striatum of NSC+OEC co-grafted rats at 24 weeks post-grafting as compared with NSC alone grafted rats. The increased survival of NSC and their striatal reinnervation was further manifested in the form of significant and substantial restitution of motor function and neurochemical recovery in the co-grafted group. Significant enhanced expression of p75NTR (from OEC) and tyrosine hydroxylase (TH) (from NSC) confirmed the co-localization and survival of both types of cells at the transplantation site in co-grafted rats. Co-grafting results co-related well with our in vitro studies, which suggest that OEC not only significantly increase survival, neurite outgrowth and DA release of NSC-derived DA neuron but also protect against 6-OHDA neurotoxicity in co-culture conditions. These results collectively suggest that OEC increase the survival and function of transplanted NSC in 6-OHDA lesioned parkinsonian rats.

Original languageEnglish (US)
Pages (from-to)436-451
Number of pages16
JournalJournal of Neurochemistry
Volume109
Issue number2
DOIs
StatePublished - Apr 1 2009

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Neural Stem Cells
Dopaminergic Neurons
Stem cells
Neurons
Rats
Survival
Corpus Striatum
Oxidopamine
Dopamine
Cell Adhesion Molecules
Grafts
Cell Survival
Transplants
Recovery
Cell Transplantation
Recovery of Function
Nerve Growth Factors
Tyrosine 3-Monooxygenase
Coculture Techniques
Spinal Cord Injuries

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Cellular and Molecular Neuroscience

Cite this

Enhanced survival and function of neural stem cells-derived dopaminergic neurons under influence of olfactory ensheathing cells in parkinsonian rats. / Shukla, Shubha; Chaturvedi, Rajnish Kumar; Seth, Kavita; Roy, Neeta; Agrawal, Ashok Kumar.

In: Journal of Neurochemistry, Vol. 109, No. 2, 01.04.2009, p. 436-451.

Research output: Contribution to journalArticle

Shukla, Shubha ; Chaturvedi, Rajnish Kumar ; Seth, Kavita ; Roy, Neeta ; Agrawal, Ashok Kumar. / Enhanced survival and function of neural stem cells-derived dopaminergic neurons under influence of olfactory ensheathing cells in parkinsonian rats. In: Journal of Neurochemistry. 2009 ; Vol. 109, No. 2. pp. 436-451.
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