Hypoxic preconditioning effect on stromal cells derived factor-1 and C-X-C chemokine receptor type 4 expression in Wistar rat's (Rattus norvegicus ) bone marrow mesenchymal stem cells (in vitro study)

Veterinary World
Sri Wigati Mardi MulyaniFedik Abdul Rantam

Abstract

To examine the effect of hypoxic preconditions on the ability of bone marrow stem cells culture mediated expression C-X-C chemokine receptor type 4 (CXCR4) and stromal cells derived factor-1 (SDF-1) in vitro. Bone marrow mesenchymal stem cells (BMSCs) were derived from 12 femurs of 200 g Wistar male rats. The animals were euthanized before BMSCs isolation. BMSCs were divided into two groups, control group: Normoxic condition 21% O2 and treatment group: Hypoxic condition 1% O2. The characterization of BMSCs was analyzed using flow cytometry by cluster differentiation 34 and cluster differentiation 105. The expression of CXCR4 and SDF-1 measured using immunocytochemistry immunofluorescence label after 48-h incubation in a low-tension oxygen chamber with an internal atmosphere consisting of 95% N2, 5% CO2, and 1% O2. All data were subjected to a normality test and then analyzed using t-test statistic (p<0.05). The characterization of bone marrow stem cells showed positive cluster differentiation 34 and cluster differentiation 105. A hypoxic precondition (1% O2) in culture increases CXCR4 (p=0.000) and SDF-1 expression than normoxic conditions (p=0.000) (p<0.05). Hypoxic preconditioning with 1% O2 increase CXCR4 and SDF1 expression.

References

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Methods Mentioned

BETA
flow cytometry
Fluorescence

Software Mentioned

SPSS
Statistical Package for the Social Sciences ( SPSS )

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