RGD Reference Report - Effects of mouse recombinant bone morphogenetic protein-7 transfection on cell apoptosis, NF-kappaB, and downstream genes in cultured primary cardiomyocytes after simulated ischemia and reperfusion injury. - Rat Genome Database

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Effects of mouse recombinant bone morphogenetic protein-7 transfection on cell apoptosis, NF-kappaB, and downstream genes in cultured primary cardiomyocytes after simulated ischemia and reperfusion injury.

Authors: Xu, JH  Zhao, YY  Wang, JK  Yuan, ZG  Zhang, TZ 
Citation: Xu JH, etal., J Cardiovasc Pharmacol. 2010 Jul;56(1):69-77. doi: 10.1097/FJC.0b013e3181e0badc.
RGD ID: 8662392
Pubmed: PMID:20631551   (View Abstract at PubMed)
DOI: DOI:10.1097/FJC.0b013e3181e0badc   (Journal Full-text)

AIM: To evaluate the acting mechanism of bone morphogenetic protein-7 in anti-ischemic protective effect, we investigate the effects of BMP-7 transfection on cell apoptosis, NF-kappaB activity, and downstream genes in neonatal rat cardiomyocytes during simulated ischemia-reperfusion. METHOD: In vitro cultured neonatal rat cardiomyocytes were divided into four groups: normal control group (Group C), simulated ischemia-reperfusion group (Group IR: cultured cardiomyocytes were subjected to 2 hours hypoxia followed by 4 hours reoxygenation), transfected group (Group BT: after transfection with pcDNA3.1-BMP-7 plasmid, cardiomyocytes were subjected to 2 hours hypoxia/4 hours reoxygenation), and empty vector control group (Group ET: same as group BT except that cells were transfected with empty pcDNA3.1 vector). Malondialdehyde content, superoxide dismutase activity, and Ca(2+) concentration were measured. Terminal deoxynucleotide transferase-mediated dUTP nick-end labeling staining and fluorescence activated cell sorting assay were applied to determine the apoptotic rate of cardiomyocytes and immunocytochemistry and Western blot were used to detect nuclear expression of NF-kappaB in cardiomyocytes. Reverse transcription-polymerase chain reaction was used to detect mRNA expression of monocyte chemoattractant protein-1 and intercellular cell adhesion molecule-1. RESULTS: Compared with Group IR, malondialdehyde content of Group BT significantly decreased, whereas superoxide dismutase activity significantly elevated. In addition, intracellular Ca(2+) concentration of Group BT significantly reduced and apoptotic cells were significantly less. Decreased optical density ratio of NF-kappaB in the nucleus and reduced monocyte chemoattractant protein-1 and intercellular cell adhesion molecule-1 mRNA expression were also detected. CONCLUSION: These results suggest that rat recombinant BMP-7 transfection provides sustained support for the repair of myocardium from ischemia injury through reducing cell apoptosis, inhibiting lipid peroxidation, antagonizing intracellular Ca(2+) overload, and preventing the activation of downstream signaling factors in signal transduction pathway mediated by NF-kappaB.



Gene Ontology Annotations    Click to see Annotation Detail View

Biological Process

  
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
Icam1Ratcellular response to hypoxia  IEP  RGD 

Objects Annotated

Genes (Rattus norvegicus)
Icam1  (intercellular adhesion molecule 1)


Additional Information