Journal: International Journal of Molecular Sciences
Article Title: Intermittent Hypoxia Up-Regulates CCL2 , RETN, and TNFα mRNAs in Adipocytes via Down-regulation of miR-452
doi: 10.3390/ijms20081960
Figure Lengend Snippet: Effects of miR-452 mimic transfection on RETN , TNFα , and CCL2 expression. The miR-452 mimic (5′-AACUGUUUGCAGAGGAAACUG-3′, 5′-GUUUCCUCUCUGCAAACAGUUUU-3′) and non-specific control RNA (miR-452 mimic NC) (5′-UUCUCCGAACGUGUCACGUtt-3′, 5′-ACGUGACACGUUCGGAGAAtt-3′) were synthesized by Nihon Gene Research Laboratories, Inc. (NGRL; Sendai, Japan) and introduced into SW872 cells using Lipofectamine ® RNAiMAX just before IH/normoxia exposure, and the mRNA levels of RETN , TNFα , and CCL2 were measured by real-time RT-PCR, as described in Materials and Methods. The expression of RETN , TNFα , and CCL2 mRNA was measured by real-time RT-PCR using β-actin as an endogenous control. Figure represents ( A ) RETN mRNA expression in miR-452 mimic NC-introduced cells, ( B ) RETN mRNA expression in miR-452 mimic-introduced cells, ( C ) TNFα mRNA expression in miR-452 mimic NC-introduced cells, ( D ) TNFα mRNA expression in miR-452 mimic-introduced cells, ( E ) CCL2 mRNA expression in miR-452 mimic NC-introduced cells, and ( F ) CCL2 mRNA expression in miR-452 mimic-introduced cells. Data are expressed as mean ± SE for each group ( n = 6). The statistical analyses were performed using Student’s t -test.
Article Snippet: Cells were exposed to either normoxia or IH for 24 h, culture medium was collected, and the concentration of RETN, TNFα, and CCL2 was measured by using a Human Resistin (RETN) ELISA kit (R&D Systems, Minneapolis, MN), Human TNFα ELISA kit (Diaclone SAS, Besançon, France) and Human C-C motif chemokine ligand 2 (CCL2) ELISA kit (R&D Systems) according to the instructions of the suppliers.
Techniques: Transfection, Expressing, Control, Synthesized, Quantitative RT-PCR