HOMEPRODUCTSCOMPANYCONTACTFAQResearchDictionaryPharmaSign Up FREE or Login

Protective effects of human umbilical cord blood stem cell intravitreal transplantation against optic nerve injury in rats.

AbstractBACKGROUND:
The majority of studies addressing traumatic optic neuropathy (TON) have focused on drugs, proteins, cytokines, and various surgical techniques. A recent study reported that transplantation of human umbilical cord blood stem cells (hUCBSCs) achieved therapeutic effects on TON, but the exact effects on optic nerve injury are still unknown, and the mechanisms underlying nerve protection remain poorly understood.
METHODS:
A total of 135 healthy Sprague-Dawley adult rats were randomly assigned to three groups: sham-surgery, model and transplantation, with 45 rats in each group. TON was induced in the model and transplantation groups via optic nerve crush injury. The crush injury was not performed in the sham-surgery group. Seven days after the injury, 10(6) hUCBSCs were injected into the rat vitreous cavity of transplantation group, and an equal volume of physiological saline was administered to the model and sham-surgery groups. Pathological observation of rat retina tissues was performed by hematoxylin-eosin (H&E) staining at days 3, 7, 14, 21 and 28 post-surgery. The number of retinal ganglion cells (RGCs) and mRNA expression levels of brain-derived neurotrophic factor (BDNF) and glial cell line-derived neurotrophic factor (GDNF) were assessed by the Fluorogold (FG) retrograde labeling and reverse transcriptase-polymerase chain reaction (RT-PCR) methods, respectively.
RESULTS:
The number of labeled RGCs and the expression of BDNF and GDNF mRNA obviously increased, and pathological injury was significantly ameliorated in the transplantation group compared to the model group (P < 0.05).
CONCLUSIONS:
Via intravitreal transplantation, the hUCBSCs resulted in a significant increase in the survival of the RGCs, and improved pathological changes in the rat retina, following TON. The protective mechanism is correlated with the continuous secretion of BDNF and GDNF in vivo of retina in optic nerve injury rats by the transplanted hUCBSCs.
AuthorsTantai Zhao, Yunqin Li, Luosheng Tang, Yuehua Li, Fang Fan, Bing Jiang
JournalGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie (Graefes Arch Clin Exp Ophthalmol) Vol. 249 Issue 7 Pg. 1021-8 (Jul 2011) ISSN: 1435-702X [Electronic] Germany
PMID21360302 (Publication Type: Journal Article)
Chemical References
  • Brain-Derived Neurotrophic Factor
  • Glial Cell Line-Derived Neurotrophic Factor
  • RNA, Messenger
Topics
  • Animals
  • Brain-Derived Neurotrophic Factor (genetics)
  • Cell Count
  • Cord Blood Stem Cell Transplantation
  • Cytoprotection
  • Disease Models, Animal
  • Female
  • Fetal Blood (cytology)
  • Glial Cell Line-Derived Neurotrophic Factor (genetics)
  • Humans
  • Male
  • Nerve Crush
  • Optic Nerve Injuries (genetics, pathology, prevention & control)
  • RNA, Messenger (metabolism)
  • Rats
  • Rats, Sprague-Dawley
  • Retinal Ganglion Cells (metabolism, pathology)
  • Reverse Transcriptase Polymerase Chain Reaction
  • Vitreous Body

Join CureHunter, for free Research Interface BASIC access!

Take advantage of free CureHunter research engine access to explore the best drug and treatment options for any disease. Find out why thousands of doctors, pharma researchers and patient activists around the world use CureHunter every day.
Realize the full power of the drug-disease research graph!


Choose Username:
Email:
Password:
Verify Password:
Enter Code Shown: