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Related Concept Videos

Bacterial Phylum Chlamydiae01:29

Bacterial Phylum Chlamydiae

717
The phylum Chlamydiae or Chlamydiota is composed of a single order, Chlamydiales. This phylum consists entirely of obligate intracellular parasites that infect eukaryotic hosts. While human pathogens within this group have been studied extensively, the phylum encompasses many species capable of interacting with various eukaryotic organisms. Members of Chlamydiae are typically small cocci, approximately 0.5 μm in diameter, and exhibit a distinctive developmental cycle. As is characteristic...
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PLGA-Chitosan Encapsulated IL-10 Nanoparticles Modulate Chlamydia Inflammation in Mice.

Abebayehu N Yilma1,2, Rajnish Sahu1, Praseetha Subbarayan1

  • 1Center for NanoBiotechnology Research (CNBR), Alabama State University, Montgomery, AL, USA.

International Journal of Nanomedicine
|February 13, 2024
PubMed
Summary
This summary is machine-generated.

Encapsulating Interleukin-10 (IL-10) in nanoparticles successfully prolonged its half-life and reduced inflammatory cytokines. This approach offers a promising, cost-effective strategy for treating inflammatory diseases.

Keywords:
ChlamydiaIL-10chitosandelivery systeminflammationnanoparticles

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Area of Science:

  • Biotechnology
  • Nanomedicine
  • Immunology

Background:

  • Interleukin-10 (IL-10) is a crucial anti-inflammatory cytokine with therapeutic potential.
  • Its short biological half-life necessitates frequent, high-dose administration, limiting clinical application and cost-effectiveness.
  • Developing methods to prolong IL-10's half-life is essential for improved therapeutic strategies.

Purpose of the Study:

  • To encapsulate recombinant IL-10 into biodegradable nanoparticles.
  • To characterize the nanoparticles and evaluate the sustained release of IL-10.
  • To assess the anti-inflammatory efficacy of encapsulated IL-10 in vitro and in vivo.

Main Methods:

  • Recombinant IL-10 was encapsulated using a double emulsion method with Poly-(Lactic-co-Glycolic Acid) and Chitosan nanoparticles.
  • Nanoparticles were characterized for size, charge, stability, and in vitro release kinetics.
  • Bioactivity was assessed in J774A.1 macrophages and BALB/c mice models, measuring inflammatory cytokines (IL-6, TNF-α) via ELISA.

Main Results:

  • Achieved 96% encapsulation efficiency with nanoparticles of 100-150 nm size.
  • Demonstrated sustained IL-10 release for up to 22 days.
  • Encapsulated IL-10 effectively reduced lipopolysaccharide-induced inflammatory responses in macrophages and *Chlamydia trachomatis*-induced inflammation in mice.

Conclusions:

  • Successful encapsulation and slow release of IL-10 prolong its biological activity.
  • Encapsulated IL-10 demonstrates biocompatibility and potent anti-inflammatory effects in vitro and in vivo.
  • This nanoparticle-based approach shows significant therapeutic potential for inflammatory diseases.