Selected renal cells modulate disease progression in rodent models of chronic kidney disease via NF-κB and TGF-β1...

Area of Science:

• Regenerative Medicine
• Nephrology
• Cell Biology

Background:

• Chronic kidney disease (CKD) is a progressive condition with limited therapeutic options.
• Understanding the mechanisms of novel regenerative therapies is crucial for improving patient outcomes.

Purpose of the Study:

• To elucidate the mechanistic pathways underlying the therapeutic bioactivity of selected renal cells (SRC) in rodent models of CKD.
• To investigate the regenerative outcomes following SRC delivery to diseased kidneys.

Main Methods:

• In vivo and in vitro functional bioassays were employed.
• Analysis of inflammatory markers (NF-κB, PAI-1, TNF-α) and cell proliferation.
• Investigation of vesicle and non-vesicle associated factors, including miRNAs.

Main Results:

• SRC administration in vivo reduced monocyte/macrophage infiltration and attenuated inflammatory responses (NF-κB, PAI-1).
• SRC promoted host tubular cell expansion via trophic cues.
• In vitro, SRC-conditioned media inhibited TNF-α and TGF-β-induced inflammatory responses and enhanced cell cycle-related gene expression.

Conclusions:

• SRC exerts therapeutic effects through a paracrine mechanism, involving immunomodulatory and trophic cues.
• These cues on host renal tissues catalyze long-term functional improvements in CKD models.