Prion Protein Overexpression in Adipose-Derived Mesenchymal Stem Cells (ADMSCs) Effectively Protected Rodent Kidney Against Ischemia-Reperfusion Injury Via Enhancing ATP/Mitochondrial Biogenesis-Role of ADMSC Rejuvenation and Proliferation

Cell Transplant. 2023 Jan-Dec:32:9636897231211067. doi: 10.1177/09636897231211067.

Abstract

Background: We tested the hypothesis that overexpression of cellular-prion-protein in adipose-derived mesenchymal stem cells (PrPCOE-ADMSCs) effectively protected the kidney against ischemia-reperfusion (IR) injury in rat.

Methods: Part I of cell culture was categorized into A1(ADMSCs)/A2(ADMSCs+p-Cresol)/A3(PrPCOE in ADMSCs)/A4 (PrPCOE in ADMSCs+p-Cresol). Part II of cell culture was divided into B1(ADMSCs)/B2[ADMSCs+lipopolysaccharide (LPS)]/B3(PrPCOE in ADMSCs)/B4(PrPCOE in ADMSCs+LPS). Sprague-Dawley (SD) rats (n = 50) were equally categorized into groups 1 (sham-operated-control)/2 (IR)/3 (IR+ADMSCs/6.0 × 105 equally divided into bilateral-renal arteries and 6.0 × 105 intravenous administration by 1 h after IR)/4 [IR+PrPCOE-ADMSCs (identical dosage administered as group 3)]/5 [IR+silencing PRNP -ADMSCs (identical dosage administered as group 3)], and kidneys were harvested post-day 3 IR injury.

Results: Part I results demonstrated that the cell viability at 24/48/72 h, BrdU uptake/number of mitDNA/APT concentration/mitochondrial-cytochrome-C+ cells and the protein expressions of ki67/PrPC at 72 h-cell culturing were significantly higher in PrPCOE-ADMSCs than in ADMSCs (all P < 0.001). The protein expressions of oxidative-stress (NOX-1/NOX2/NOX4/oxidized protein)/mitochondrial-damaged (p22-phox/cytosolic-cytochrome-C)/inflammatory (p-NF-κB/IL-1ß/TNF-α/IL-6)/apoptotic (cleaved caspase-3/cleaved-PARP) biomarkers were lowest in A1/A3 and significantly higher in A2 than in A4 (all P < 0.001). Part II result showed that the protein expressions of inflammatory (p-NF-κB/IL-1ß/TNF-α/IL-6)/apoptotic (cleaved caspase-3/cleaved-PARP) biomarkers exhibited an identical pattern of part I among the groups (all P < 0.001). The protein expressions of inflammatory (p-NF-κB/IL-1ß/TNF-α/MMP-9)/oxidative-stress (NOX-1/NOX-2/oxidized-protein)/mitochondrial-damaged (cytosolic-cytochrome-C/p22-phox)/apoptotic (cleaved caspase-3/cleaved-PARP/mitochondrial-Bx)/autophagic (beclin-1/ratio of LC3B-II/LC3B-I)/fibrotic (Smad3/TGF-ß) biomarkers and kidney-injury-score/creatinine level were lowest in group 1, highest in group 2, significantly higher in group 5 than in groups 3/4 (all P < 0.0001).

Conclusion: PrPCOE in ADMSCs rejuvenated these cells and played a cardinal role on protecting the kidney against IR injury.

Keywords: acute kidney damage; adipose tissue-derived MSCs; apoptosis; inflammation; overexpression of cellular protein; oxidative stress.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adenosine Triphosphate / metabolism
  • Animals
  • Biomarkers / metabolism
  • Caspase 3 / metabolism
  • Cell Proliferation
  • Cytochromes / metabolism
  • Cytochromes / therapeutic use
  • Interleukin-6 / metabolism
  • Kidney / metabolism
  • Lipopolysaccharides
  • Mesenchymal Stem Cell Transplantation* / methods
  • Mesenchymal Stem Cells*
  • NF-kappa B / metabolism
  • Organelle Biogenesis
  • Poly(ADP-ribose) Polymerase Inhibitors / metabolism
  • Poly(ADP-ribose) Polymerase Inhibitors / therapeutic use
  • Prion Proteins / metabolism
  • Prions* / metabolism
  • Prions* / therapeutic use
  • Rats
  • Rats, Sprague-Dawley
  • Rejuvenation
  • Reperfusion Injury* / metabolism
  • Rodentia
  • Tumor Necrosis Factor-alpha / metabolism

Substances

  • 4-cresol
  • Prion Proteins
  • Caspase 3
  • Prions
  • Tumor Necrosis Factor-alpha
  • Interleukin-6
  • Lipopolysaccharides
  • NF-kappa B
  • Poly(ADP-ribose) Polymerase Inhibitors
  • Biomarkers
  • Cytochromes
  • Adenosine Triphosphate