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Biogenic derived nanoparticles modulate mitochondrial function in cardiomyocytes.

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Novel pomegranate peel nanoparticles (PPP NPs) show promise for treating mitochondrial dysfunction. These natural nanoparticles improve heart cell function and reduce inflammation, offering a safer alternative to current nanomedicines.

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Area of Science:

  • Biomedical Engineering
  • Nanomedicine
  • Cardiovascular Research

Background:

  • Mitochondrial dysfunction is critical in cardiovascular diseases.
  • Existing nanomedicines face challenges like poor stability, high cost, and toxicity.
  • Natural compounds offer potential for improved therapeutic strategies.

Purpose of the Study:

  • To develop and evaluate novel polyphenolic nanoparticles (NPs) from pomegranate peel (PPP NPs) for mitochondrial function modulation.
  • To assess the therapeutic potential of PPP NPs in models of mitochondrial damage and cardiovascular disease.
  • To elucidate the underlying anti-inflammatory mechanisms of PPP NPs.

Main Methods:

  • Synthesis and characterization of polyphenolic nanoparticles (PPP NPs) from pomegranate peel.
  • In vitro assessment of PPP NPs' antioxidative, anti-inflammatory, and mitochondrial protective effects.
  • In vivo evaluation using lipopolysaccharide (LPS)-induced injury models in engineered heart tissue and mice.
  • Mechanistic studies involving RNA sequencing (RNA-seq) and m6A-specific immunoprecipitation sequencing (MeRIP-seq).

Main Results:

  • PPP NPs demonstrated significant antioxidative and anti-inflammatory properties.
  • PPP NPs improved survival rates in mitochondrial depletion models by enhancing cardiomyocyte proliferation and reducing DNA damage.
  • PPP NPs inhibited reactive oxygen species and inflammatory mediators in LPS-induced mitochondrial damage.
  • PPP NPs significantly improved cardiac contractile function and reduced inflammation in vivo.
  • Mechanistic analysis revealed m6A-dependent regulation of inflammatory responses by PPP NPs.

Conclusions:

  • Pomegranate peel-derived polyphenolic nanoparticles (PPP NPs) represent a novel therapeutic strategy for mitochondrial dysfunction.
  • PPP NPs offer a stable, cost-effective, and potentially less toxic alternative to current nanomedicines.
  • These findings highlight the potential of natural nanomaterials in treating cardiovascular diseases associated with mitochondrial damage.