Liu Hong. Effect of aldehyde dehydrogenase 2 on monocyte-human aortic endothelial cells adhesion and its mechanisms. [J]. Journal of Chongqing Medical University 46(8):927-932(2021)
DOI:
Liu Hong. Effect of aldehyde dehydrogenase 2 on monocyte-human aortic endothelial cells adhesion and its mechanisms. [J]. Journal of Chongqing Medical University 46(8):927-932(2021) DOI: 10.13406/j.cnki.cyxb.002720.
Effect of aldehyde dehydrogenase 2 on monocyte-human aortic endothelial cells adhesion and its mechanisms
Objective: To investigate the effect of aldehyde dehydrogenase 2 (ALDH2) on monocyte (THP-1) -human aortic endothelial cells (HAECs) adhesion and its mechanisms. Methods: HAECs was divided into the Control group
ALDH2 NC group
ALDH2 group
siRNA-ALDH2 NC group
siRNA-ALDH2-1
-2
-3 groups. The expression of ALDH2 protein and mRNA was detected by Western blot and real-time PCR. The adhesive ability between THP-1 and HAECs was detected by cell adhesion assay. The transcription of nuclear factor-kappa B (NF-κB) was detected by Western blot and immunofluorescence. Results: Compared with the Control group and the ALDH2 NC group
the expression of ALDH2 was up-regulated in the ALDH2 group (P<0.05). Compared with the Control group and the siRNA-ALDH2 NC group
the expression of ALDH2 was down-regulated in the siRNA-ALDH2-1
-2
-3 groups (P<0.05)
and the expression of ALDH2 was the lowest in the siRNA-ALDH2-2 group. Compared with Control group and ALDH2 NC group
cell adhesive ability
the expression of NF-κB in nucleus and the red fluorescence was decreased (P<0.05)
and the expression of NF-κB in cytoplasm increased in ALDH2 group (P<0.05). Compared with Control group and siRNA-ALDH2 NC group
cell adhesive ability
the expression of NF-κB in nucleus and the red fluorescence was increased (P<0.05)
the expression of NF-κB in cytoplasm decreased in siRNA-ALDH2 group (P<0.05). Conclusion: ALDH2 could inhibit the adhesion between THP-1-HAECs by inhibiting NF-κB nuclear transcription