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HUC-MSC secretome and Nanoemulsion Propolis synergistically modulate inflammatory responses in hyperglycemia-induced
Putri Cahaya Situmorang1, Helen Helen2, Syafruddin Ilyas1
1Department of Biology, Faculty of Mathematic and Natural Science, Universitas Sumatera Utara, Medan, Indonesia.
Background:
Hyperglycemia-induced osteolysis is a significant consequence of diabetes mellitus, marked by heightened inflammatory responses, augmented osteoclastogenesis, and compromised osteoblast function. Innovative therapy approaches aimed at inflammatory and cytoprotective mechanisms are essential to avert diabetic bone loss.
Objective:
This study investigated the synergistic effects of human umbilical cord mesenchymal stem cell (HUC-MSC) secretome and Nanoemulsion Propolis (NEP) on inflammatory responses and protective protein expression in a rat model of hyperglycemia-associated calvarial osteolysis.
Methods:
Male Wistar rats were categorized into seven groups: control, LPS-induced inflammation, hyperglycemia, a combination of LPS and hyperglycemia, and treatment groups administered HUC-MSC secretome, NEP, or both. Cytokine concentrations (IL-1β, TNF-α, IL-10) were measured using ELISA, whilst NF-κB, IL-6, HSP-70, and HSP-10 expression in calvarial tissue was assessed by immunohistochemistry.
Results:
LPS, in conjunction with hyperglycemia, significantly increased pro-inflammatory cytokines and NF-κB activation, reduced IL-10 levels, and inhibited HSP-70 and HSP-10, hence worsening bone resorption. Treatment with HUC-MSC secretome or NEP alone moderately diminished inflammation, however the combined therapy markedly downregulated NF-κB, IL-1β, TNF-α, and IL-6, while reinstating IL-10 and stress proteins. These modifications diminished osteoclast activation and maintained osteoblast viability, with the most significant protective impact noted in the combination group.
Conclusion:
The HUC-MSC secretome and NEP collaboratively influence inflammatory pathways and reinstate protective proteins in calvarial osteolysis triggered by hyperglycemia. This dual technique presents a promising acellular and natural product-based method for addressing diabetes bone loss and associated craniofacial problems.
