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.
Artículo
en Chino
| WPRIM
| ID: wpr-340604
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>
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Patología
/
Terapéutica
/
Ratas Sprague-Dawley
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Apoptosis
/
Proteínas Proto-Oncogénicas c-bcl-2
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Hipoxia-Isquemia Encefálica
/
Trasplante de Células Madre de Sangre del Cordón Umbilical
/
Proteína X Asociada a bcl-2
/
Caspasa 3
/
Animales Recién Nacidos
Límite:
Animales
Idioma:
Chino
Revista:
Chinese Journal of Contemporary Pediatrics
Año:
2016
Tipo del documento:
Artículo
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