Abstract:
:Endothelial progenitor cells secrete a variety of growth factors that inhibit inflammation, promote angiogenesis and exert neuroprotective effects. Therefore, in this study, we investigated whether endothelial progenitor cell-conditioned medium might have therapeutic effectiveness for the treatment of spinal cord injury using both in vitro and in vivo experiments. After primary culture of bone marrow-derived macrophages, lipopolysaccharide stimulation was used to classically activate macrophages to their proinflammatory phenotype. These cells were then treated with endothelial progenitor cell-conditioned medium or control medium. Polymerase chain reaction was used to determine mRNA expression levels of related inflammatory factors. Afterwards, primary cultures of rat spinal cord neuronal cells were prepared and treated with H2O2 and either endothelial progenitor cell-conditioned medium or control medium. Hoechst 33258 and propidium iodide staining were used to calculate the proportion of neurons undergoing apoptosis. Aortic ring assay was performed to assess the effect of endothelial progenitor cell-conditioned medium on angiogenesis. Compared with control medium, endothelial progenitor cell-conditioned medium mitigated the macrophage inflammatory response at the spinal cord injury site, suppressed apoptosis, and promoted angiogenesis. Next, we used a rat model of spinal cord injury to examine the effects of the endothelial progenitor cell-conditioned medium in vivo. The rats were randomly administered intraperitoneal injection of PBS, control medium or endothelial progenitor cell-conditioned medium, once a day, for 6 consecutive weeks. Immunohistochemistry was used to observe neuronal morphology. Terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling assay was performed to detect the proportion of apoptotic neurons in the gray matter. The Basso, Beattie and Bresnahan Locomotor Rating Scale was used to evaluate the recovery of motor function of the bilateral hind limbs after spinal cord injury. Compared with the other two groups, the number of axons was increased, cavities in the spinal cord were decreased, the proportion of apoptotic neurons in the gray matter was reduced, and the Basso, Beattie and Bresnahan score was higher in the endothelial progenitor cell-conditioned medium group. Taken together, the in vivo and in vitro results suggest that endothelial progenitor cell-conditioned medium suppresses inflammation, promotes angiogenesis, provides neuroprotection, and promotes functional recovery after spinal cord injury.
journal_name
Neural Regen Resjournal_title
Neural regeneration researchauthors
Wang T,Fang X,Yin ZSdoi
10.4103/1673-5374.232484subject
Has Abstractpub_date
2018-05-01 00:00:00pages
887-895issue
5eissn
1673-5374issn
1876-7958pii
NeuralRegenRes_2018_13_5_887_232484journal_volume
13pub_type
杂志文章abstract::New Zealand rabbits were randomly divided into an ischemia group (occlusion of the abdominal aorta for 60 minutes), an ischemia-reperfusion group (occlusion of the abdominal aorta for 60 minutes followed by 48 hours of reperfusion) and a sham-surgery group. Two-dimensional gel electrophoresis detected 49 differentiall...
journal_title:Neural regeneration research
pub_type: 杂志文章
doi:10.3969/j.issn.1673-5374.2012.20.002
更新日期:2012-07-15 00:00:00
abstract::In this study, rats were put into traumatic brain injury-induced coma and treated with median nerve electrical stimulation. We explored the wake-promoting effect, and possible mechanisms, of median nerve electrical stimulation. Electrical stimulation upregulated the expression levels of orexin-A and its receptor OX1R ...
journal_title:Neural regeneration research
pub_type: 杂志文章
doi:10.4103/1673-5374.155433
更新日期:2015-04-01 00:00:00
abstract::Neurotropic herpesviruses have been associated with the onset and progression of Alzheimer's disease, a common form of dementia that afflicts a large percentage of elderly individuals. Interestingly, among the neurotropic herpesviruses, herpes simplex virus-1, human herpesvirus-6A, and human herpesvirus-6B have been r...
journal_title:Neural regeneration research
pub_type: 杂志文章,评审
doi:10.4103/1673-5374.253508
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journal_title:Neural regeneration research
pub_type: 杂志文章
doi:10.3969/j.issn.1673-5374.2013.31.002
更新日期:2013-11-05 00:00:00
abstract::Spinal cord injury that results in severe neurological disability is often incurable. The poor clinical outcome of spinal cord injury is mainly caused by the failure to reconstruct the injured neural circuits. Several intrinsic and extrinsic determinants contribute to this inability to reconnect. Epigenetic regulation...
journal_title:Neural regeneration research
pub_type: 杂志文章,评审
doi:10.4103/1673-5374.276323
更新日期:2020-09-01 00:00:00
abstract::The signaling mechanisms underlying ischemia-induced nerve cell apoptosis are poorly understood. We investigated the effects of apoptosis-related signal transduction pathways following ischemic spinal cord injury, including extracellular signal-regulated kinase (ERK), serine-threonine protein kinase (Akt) and c-Jun N-...
journal_title:Neural regeneration research
pub_type: 杂志文章
doi:10.4103/1673-5374.170313
更新日期:2015-11-01 00:00:00
abstract::For decades, clinicians have developed medications and therapies to alleviate the symptoms of Parkinson's disease, but no treatment currently can slow or even stop the progression of this localized neurodegeneration. Fortunately, sparked by the genetic revolution, stem cell reprogramming research and the advancing cap...
journal_title:Neural regeneration research
pub_type: 杂志文章,评审
doi:10.4103/1673-5374.264446
更新日期:2020-01-01 00:00:00
abstract::Stem cell transplantation can promote functional restoration following acute spinal cord injury (injury time < 3 months), but the safety and long-term efficacy of this treatment need further exploration. In this study, 25 patients with traumatic spinal cord injury (injury time > 6 months) were treated with human umbil...
journal_title:Neural regeneration research
pub_type: 杂志文章
doi:10.3969/j.issn.1673-5374.2013.05.002
更新日期:2013-02-15 00:00:00
abstract::The iron chelator deferoxamine has been shown to inhibit ferroptosis in spinal cord injury. However, it is unclear whether deferoxamine directly protects neurons from ferroptotic cell death. By comparing the survival rate and morphology of primary neurons and SH-SY5Y cells exposed to erastin, it was found that these c...
journal_title:Neural regeneration research
pub_type: 杂志文章
doi:10.4103/1673-5374.274344
更新日期:2020-08-01 00:00:00
abstract::Molecular mechanisms of the Krüppel-like family of transcription factors (KLFs) have been studied more in proliferating cells than in post-mitotic cells such as neurons. We recently found that KLFs regulate intrinsic axon growth ability in central nervous system (CNS) neurons including retinal ganglion cells, and hipp...
journal_title:Neural regeneration research
pub_type: 杂志文章,评审
doi:10.4103/1673-5374.139454
更新日期:2014-08-01 00:00:00
abstract::Propofol is a neuroprotective anesthetic. Whether propofol can promote spinal cord injury repair by bone marrow mesenchymal stem cells remains poorly understood. We used rats to investigate spinal cord injury repair using bone marrow mesenchymal stem cell transplantation combined with propofol administration via the t...
journal_title:Neural regeneration research
pub_type: 杂志文章
doi:10.4103/1673-5374.162765
更新日期:2015-08-01 00:00:00
abstract::Alzheimer's disease is the leading cause of dementia. Its increased prevalence in developed countries, due to the sharp rise in ageing populations, presents one of the costliest challenges to modern medicine. In order to find disease-modifying therapies to confront this challenge, a more complete understanding of the ...
journal_title:Neural regeneration research
pub_type: 杂志文章,评审
doi:10.4103/1673-5374.272571
更新日期:2020-07-01 00:00:00
abstract::The influence of duration of immobilization and postoperative sensory re-education on the final outcome after reconstruction of digital nerves with direct suture or muscle-in-vein conduits was investigated. The final sensory outcome of 35 patients with 41 digital nerve injuries, who either underwent a direct suture (D...
journal_title:Neural regeneration research
pub_type: 杂志文章
doi:10.4103/1673-5374.169638
更新日期:2016-02-01 00:00:00
abstract::End-to-end repair under no or low tension leads to improved outcomes for transected nerves with short gaps, compared to repairs with a graft. However, grafts are typically used to enable a tension-free repair for moderate to large gaps, as excessive tension can cause repairs to fail and catastrophically impede recover...
journal_title:Neural regeneration research
pub_type: 杂志文章
doi:10.4103/1673-5374.251338
更新日期:2019-07-01 00:00:00
abstract::Tanshinone IIA, extracted from Salvia miltiorrhiza Bunge, exerts neuroprotective effects through its anti-inflammatory, anti-oxidative and anti-apoptotic properties. This study intravenously injected tanshinone IIA 20 mg/kg into rat models of spinal cord injury for 7 consecutive days. Results showed that tanshinone II...
journal_title:Neural regeneration research
pub_type: 杂志文章
doi:10.4103/1673-5374.200810
更新日期:2017-02-01 00:00:00
abstract::Previous studies demonstrate an accumulation of transferrin and transferrin receptor 1 (TfR1) in regenerating peripheral nerves. However, the expression and function of transferrin and TfR1 in the denervated skeletal muscle remain poorly understood. In this study, a mouse model of denervation was produced by complete ...
journal_title:Neural regeneration research
pub_type: 杂志文章
doi:10.4103/1673-5374.301024
更新日期:2021-07-01 00:00:00
abstract::Proximal or middle lesions of the ulnar or median nerves are responsible for extensive loss of hand motor function. This occurs even when the most meticulous microsurgical techniques or nerve grafts are used. Previous studies had proposed that nerve transfer was more effective than nerve grafting for nerve repair. Our...
journal_title:Neural regeneration research
pub_type: 杂志文章
doi:10.4103/1673-5374.199007
更新日期:2017-01-01 00:00:00
abstract::In contrast to astrocytes in mammals, fish astrocytes promote axon regeneration after brain injury and actively participate in the regeneration process. Neurolin, a regeneration-associated, Zn8-labeled protein, is involved in the repair of damaged optic nerve in goldfish. At 1 week after unilateral eye injury, the exp...
journal_title:Neural regeneration research
pub_type: 杂志文章
doi:10.4103/1673-5374.243721
更新日期:2019-01-01 00:00:00
abstract::The heterogeneity of traumatic brain injury (TBI)-induced secondary injury has greatly hampered the development of effective treatments for TBI patients. Targeting common processes across species may be an innovative strategy to combat debilitating TBI. In the present study, a cross-species transcriptome comparison wa...
journal_title:Neural regeneration research
pub_type: 杂志文章
doi:10.4103/1673-5374.301028
更新日期:2021-07-01 00:00:00
abstract::Myasthenia gravis is a rare and invalidating disease affecting the neuromuscular junction of voluntary muscles. The classical form of this autoimmune disease is characterized by the presence of antibodies against the most abundant protein in the neuromuscular junction, the nicotinic acetylcholine receptor. Other varia...
journal_title:Neural regeneration research
pub_type: 杂志文章,评审
doi:10.4103/1673-5374.290880
更新日期:2021-02-01 00:00:00
abstract::Visual cortical prostheses have the potential to restore partial vision. Still limited by the low-resolution visual percepts provided by visual cortical prostheses, implant wearers can currently only "see" pixelized images, and how to obtain the specific brain responses to different pixelized images in the primary vis...
journal_title:Neural regeneration research
pub_type: 杂志文章
doi:10.4103/1673-5374.167761
更新日期:2015-10-01 00:00:00
abstract::One hundred patients with focal epilepsy were recruited for the present study and their seizures controlled with antiepileptic drugs. The patients then orally received a capsule of tall gastrodis tuber powder, a traditional Chinese drug, and underwent single photon emission computed tomography, long-term electroenceph...
journal_title:Neural regeneration research
pub_type: 杂志文章
doi:10.3969/j.issn.1673-5374.2013.03.002
更新日期:2013-01-25 00:00:00
abstract::Lentivirus carrying the Atoh1 gene can infect Corti's organ and express a hair-like cell surface marker in the supporting cell area. However, expression of the gene carried by adenovirus is instantaneous, which undoubtedly limits its clinical application. Lentivirus acts as a carrier that can stably and continuously e...
journal_title:Neural regeneration research
pub_type: 杂志文章
doi:10.3969/j.issn.1673-5374.2013.17.002
更新日期:2013-06-15 00:00:00
abstract::A survivin siRNA expression vector was transfected into glioma U-87MG cells and these cells were then treated with paclitaxel. The results showed that survivin-specific siRNA combined with paclitaxel treatment synergistically inhibited glioma U-87MG cell proliferation and promoted apoptosis. This treatment also inhibi...
journal_title:Neural regeneration research
pub_type: 杂志文章
doi:10.3969/j.issn.1673-5374.2012.13.008
更新日期:2012-05-05 00:00:00
abstract::Traumatic brain injury (TBI) is characterized by primary damage to the brain from the external mechanical force and by subsequent secondary injury due to various molecular and pathophysiological responses that eventually lead to neuronal cell death. Secondary brain injury events may occur minutes, hours, or even days ...
journal_title:Neural regeneration research
pub_type: 杂志文章,评审
doi:10.4103/1673-5374.219025
更新日期:2017-11-01 00:00:00
abstract::Motor function impairment is a common outcome of stroke. Constraint-induced movement therapy (CIMT) involving intensive use of the impaired limb while restraining the unaffected limb is widely used to overcome the effects of 'learned non-use' and improve limb function after stroke. However, the underlying mechanism of...
journal_title:Neural regeneration research
pub_type: 杂志文章
doi:10.4103/1673-5374.172319
更新日期:2015-12-01 00:00:00
abstract::One of the most important causes of brain injury in the neonatal period is a perinatal hypoxic-ischemic event. This devastating condition can lead to long-term neurological deficits or even death. After hypoxic-ischemic brain injury, a variety of specific cellular mechanisms are set in motion, triggering cell damage a...
journal_title:Neural regeneration research
pub_type: 杂志文章
doi:10.3969/j.issn.1673-5374.2013.08.008
更新日期:2013-03-15 00:00:00
abstract::Polysaccharides extracted from Lycium barbarum exhibit antioxidant properties. We hypothesized that these polysaccharides resist oxidative stress-induced neuronal damage following cavernous nerve injury. In this study, rat models were intragastrically administered Lycium barbarum polysaccharides for 2 weeks at 1, 7, a...
journal_title:Neural regeneration research
pub_type: 杂志文章
doi:10.4103/1673-5374.189197
更新日期:2016-08-01 00:00:00
abstract::Autophagy is involved in neural cell death after cerebral ischemia. Our previous studies showed that rapamycin-induced autophagy decreased the rate of apoptosis, but the rate of apoptosis was creased after the autophagy inhibitor, 3-methyladenine, was used. In this study, a suture-occluded method was performed to gene...
journal_title:Neural regeneration research
pub_type: 杂志文章
doi:10.3969/j.issn.1673-5374.2013.23.001
更新日期:2013-08-15 00:00:00
abstract::In this study, human umbilical cord mesenchymal stem cells from full-term neonates born by vaginal delivery were cultured in medium containing 150 mg/mL of brain tissue extracts from Sprague-Dawley rats (to mimic the brain microenvironment). Immunocytochemical analysis demonstrated that the cells differentiated into n...
journal_title:Neural regeneration research
pub_type: 杂志文章
doi:10.3969/j.issn.1673-5374.2012.25.001
更新日期:2012-09-05 00:00:00