Effects of umbilical cord blood mononuclear cells transplantation via lateral ventricle on the neural apoptosis and the expression of Bax and Bcl-2 proteins in neonatal rats with hypoxic-ischemic brain damage / 中国当代儿科杂志
Chinese Journal of Contemporary Pediatrics
; (12): 862-866, 2016.
Article
in Zh
| WPRIM
| ID: wpr-340604
Responsible library:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To explore the effects of umbilical cord blood mononuclear cells (UCBMC) transplantation on the neuronal apoptosis and the expression of Bcl-2 and Bax proteins in neonatal rats with hypoxic-ischemic brain damage (HIBD).</p><p><b>METHODS</b>Seven-day-old Sprague-Dawley neonatal rats were randomly divided into normal control (N)+normal saline (NS), HIBD+NS, N+UCBMC, and HIBD+UCBMC groups. HIBD model was prepared using the classical Rice-Vannucci method. Twenty-four hours after HIBD, UCBMC were transplanted in the N+UCBMC and HIBD+UCBMC groups. Seven days after transplantation, NeuN/Cleaved-Caspase-3 double immunofluorescence staining and TUNEL methods were used to observe neural apoptosis in the cortex. The expression levels of Bax and Bcl-2 proteins were examined by Western blot analysis.</p><p><b>RESULTS</b>There were more NeuNcleaved Caspase-3DAPIand TUNELDAPIcells in the HIBD+NS group compared with the N+NS and N+UCBMC groups (P<0.01). There were less NeuNcleaved Caspase-3DAPIand TUNELDAPIcells in the HIBD+UCBMC group compared with the HIBD+NS group (P<0.01). The concentration of Bax protein was higher and that of Bcl-2 proteins was lower in the HIBD+NS group compared with the N+NS and N+UCBMC groups (P<0.01). The concentration of Bax protein in HIBD+UCBMC group was lower than that in the HIBD+NS group (P<0.01). The concentration of Bcl-2 protein was higher compared with the HIBD+NS, N+NS and N+UCBMC groups (P<0.05).</p><p><b>CONCLUSIONS</b>UCBMC transplantation via lateral ventricle can upregulate the expression of Bcl-2 protein and down-regulate the expression of Bax protein, thus alleviating brain neural apoptosis in neonatal rats with HIBD.</p>
Full text:
1
Index:
WPRIM
Main subject:
Pathology
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Therapeutics
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Rats, Sprague-Dawley
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Apoptosis
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Proto-Oncogene Proteins c-bcl-2
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Hypoxia-Ischemia, Brain
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Cord Blood Stem Cell Transplantation
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Bcl-2-Associated X Protein
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Caspase 3
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Animals, Newborn
Limits:
Animals
Language:
Zh
Journal:
Chinese Journal of Contemporary Pediatrics
Year:
2016
Type:
Article