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Cellular components via photodynamic action (N/A)

Target: N/A
Molecular classification: Lipids, Proteins, Nucleic acids, Organelles, Plasma membrane lipids/proteins, Cytoskeletal elements (tubulin), Ion channels (TRPA1/TRPV1), Signal transduction proteins/pathways (ERK/Akt/EGFR)

Overview

Cellular components are targeted and damaged through the combined effects of a photosensitizer, light of a specific wavelength, and molecular oxygen, leading to the generation of reactive oxygen species (ROS). This process is central to photodynamic therapy (PDT), a treatment modality used in cancer and other diseases. Major targets include plasma membrane lipids/proteins, cytoskeletal elements (tubulin), ion channels (TRPA1/TRPV1), and signal transduction proteins/pathways (ERK/Akt/EGFR). This results in membrane disruption/inactivation, mitotic arrest/cell cycle disruption, altered ion fluxes/calcium signaling, and modulated growth/survival signaling.

Other names: Photodynamically targeted cellular structuresPDT-targeted biomolecules/organelles

Mechanism of action

Light-excited photosensitizers generate ROS that oxidatively modify/damage essential biomolecules within illuminated cells.

Biological functions

Membrane integrityCell cycleIon fluxesCalcium signalingGrowth signalingSurvival signalingCell deathImmune responseMitosis

Disease associations

CancerNon-oncologic conditions requiring localized tissue ablation

Safety considerations

Non-specific targeting leading to off-target effectsSkin photosensitivity

Interacting drugs

Photosensitizers (various)

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