Effects of Adipose-Derived Biogenic Nanoparticle-Associated microRNA-451a on Toll-like Receptor 4-Induced Cytokines
Xinghua Wang,
Anthony Pham,
Lu Kang,
Sierra A. Walker,
Irina Davidovich,
Dalila Iannotta,
Sarvam P. TerKonda,
Shane Shapiro,
Yeshayahu Talmon,
Si Pham,
Joy Wolfram
Affiliations
Xinghua Wang
Department of Biochemistry and Molecular Biology, Mayo Clinic, Jacksonville, FL 32224, USA
Anthony Pham
Department of Biochemistry and Molecular Biology, Mayo Clinic, Jacksonville, FL 32224, USA
Lu Kang
Department of Cardiothoracic Surgery, Mayo Clinic, Jacksonville, FL 32224, USA
Sierra A. Walker
Department of Biochemistry and Molecular Biology, Mayo Clinic, Jacksonville, FL 32224, USA
Irina Davidovich
Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion-Israel Institute of Technology, Haifa 3200003, Israel
Dalila Iannotta
Department of Biochemistry and Molecular Biology, Mayo Clinic, Jacksonville, FL 32224, USA
Sarvam P. TerKonda
Department of Plastic Surgery, Mayo Clinic, Jacksonville, FL 32224, USA
Shane Shapiro
Center for Regenerative Medicine, Mayo Clinic, Jacksonville, FL 32224, USA
Yeshayahu Talmon
Department of Chemical Engineering and the Russell Berrie Nanotechnology Institute (RBNI), Technion-Israel Institute of Technology, Haifa 3200003, Israel
Si Pham
Department of Cardiothoracic Surgery, Mayo Clinic, Jacksonville, FL 32224, USA
Joy Wolfram
Department of Biochemistry and Molecular Biology, Mayo Clinic, Jacksonville, FL 32224, USA
Extracellular vesicles (EVs) are cell-released nanoparticles that transfer biomolecular content between cells. Among EV-associated biomolecules, microRNAs (miRNAs/miRs) represent one of the most important modulators of signaling pathways in recipient cells. Previous studies have shown that EVs from adipose-derived mesenchymal stromal cells (MSCs) and adipose tissue modulate inflammatory pathways in macrophages. In this study, the effects of miRNAs that are abundant in adipose tissue EVs and other biogenic nanoparticles (BiNPs) were assessed in terms of altering Toll-like receptor 4 (TLR4)-induced cytokines. TLR-4 signaling in macrophages is often triggered by pathogen or damage-induced inflammation and is associated with several diseases. This study demonstrates that miR-451a, which is abundant in adipose tissue BiNPs, suppresses pro-inflammatory cytokines and increases anti-inflammatory cytokines associated with the TLR4 pathway. Therefore, miR-451a may be partially responsible for immunomodulatory effects of adipose tissue-derived BiNPs.
