Bio-imaging and Photodynamic Therapy with Tetra Sulphonatophenyl Porphyrin (TSPP)-TiO2 Nanowhiskers: New Approaches...

Area of Science:

• Biomedical Engineering
• Nanotechnology
• Immunology

Background:

• Rheumatoid arthritis (RA) is a significant human joint disease with complex, often unknown, etiological factors.
• Early diagnosis and effective treatment of RA present ongoing clinical challenges.
• Current therapeutic strategies for RA often require improvement in specificity and efficacy.

Purpose of the Study:

• To investigate the potential of tetera suplhonatophenyl porphyrin (TSPP) and titanium dioxide (TiO2) nanowhisker (TP) nanocomposites for RA theranostics.
• To evaluate TP nanocomposites as a dual-action agent for both bio-imaging and photodynamic therapy (PDT) in RA.
• To assess the therapeutic efficacy of TP-PDT in modulating key inflammatory markers associated with RA.

Main Methods:

• Synthesis and characterization of TP nanocomposites.
• In vitro and in vivo evaluation of TP nanocomposites for fluorescent bio-imaging.
• Application of TP-mediated photodynamic therapy (PDT) in an RA model.
• Quantification of inflammatory markers (IL-17, TNF-α) in blood serum using established assays.

Main Results:

• TP nanocomposites demonstrated effective fluorescent imaging capabilities for RA diagnosis at subclinical stages.
• TP-mediated PDT significantly reduced serum levels of pro-inflammatory cytokines, Interleukin-17 (IL-17) and Tumor Necrosis Factor-alpha (TNF-α).
• The study observed a notable ameliorating effect of TP solution PDT on RA, indicating therapeutic potential.

Conclusions:

• TP nanocomposites offer a promising theranostic approach for rheumatoid arthritis.
• Fluorescent imaging with TP enables early disease detection and joint bio-marking.
• TP-mediated PDT demonstrates therapeutic benefits by reducing key inflammatory markers, suggesting a viable treatment strategy for RA.