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Development of an Innovative LED-based Illumination Device for In Vitro Application of Photodynamic Therapy with Rose Bengal
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Photodynamic Therapy in the Treatment of Bladder Cancer: Past Challenges and Current Innovations

Reema Railkar1, Piyush K Agarwal1

  • 1Urologic Oncology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA.

European Urology Focus
|August 27, 2018
PubMed

Insights

Recurrent non-muscle-invasive bladder cancer has few treatments. Photoimmunotherapy, using targeted antibody-photosensitizer conjugates, offers a more selective approach to light-based therapy, overcoming limitations of earlier photodynamic therapy methods.

Area of Science:

  • Oncology
  • Biochemistry
  • Immunology

Background:

  • Limited treatment options exist for recurrent non-muscle-invasive bladder cancer.
  • Photodynamic therapy (PDT) showed promise but was hindered by toxicity and bystander effects.
  • Monoclonal antibody-conjugates offer improved tumor specificity for cancer treatment.

Purpose of the Study:

  • To review the history and evolution of photodynamic therapy.
  • To introduce photoimmunotherapy as an advanced targeted light-based treatment.
  • To discuss the potential of monoclonal antibody-photosensitizer conjugates.

Main Methods:

  • Historical review of photodynamic therapy development.
  • Discussion of monoclonal antibody-conjugate technology.
  • Exploration of photoimmunotherapy principles and applications.

Main Results:

  • Photodynamic therapy demonstrated therapeutic potential but faced significant toxicity challenges.
  • Monoclonal antibody-conjugates enhance specificity in drug delivery.
  • Photoimmunotherapy combines antibody targeting with light-activated agents for selective tumor destruction.

Conclusions:

  • Photoimmunotherapy represents a promising advancement over traditional photodynamic therapy for bladder cancer.
  • Targeted delivery via antibody-conjugates mitigates toxicity and improves therapeutic outcomes.
  • Further research into photoimmunotherapy is warranted for recurrent non-muscle-invasive bladder cancer.
Keywords:
5-Aminolevulinic acidBCG-refractory NMIBCBladder cancerHematoporphyrinHexaminolevulinic acidPDTPITPhotodynamic therapyPhotoimmunotherapyUrothelial cancer

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