Evidence map›Paper›PMID 24617972›Full record

ArticlePhotochemistry and photobiology

Enhanced efficacy of photodynamic therapy via a sequential targeting protocol.

David Kessel, John J Reiners

Open access · greenAbstract read
In one paragraph

Article in Photochemistry and photobiology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
6.0field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

42 citing papers in PubMed, 68 citations in OpenAlex.

  1. Polymeric nanocarriers for subcellular targeting in photodynamic therapy.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2026
    Review
  2. Determinants of Photodynamic Therapy Resistance in Cancer Cells.International journal of molecular sciences · 2024
    Review
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  11. Critical PDT Theory III: Events at the Molecular and Cellular Level.International journal of molecular sciences · 2022
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

David KesselDepartment of Pharmacology, Wayne State University, Detroit, MI.
John J Reiners
Wayne State University · US

Funding

Subcellular targets and PDT-induces cell deathR01CA023378 · NCI · WAYNE STATE UNIVERSITY · PI KESSEL, DAVID HARRY · 1985 to 2013
$3.3M
Inflammatory Breast Cancer: Factors Contributing to DisseminationR03TW008624 · FIC · WAYNE STATE UNIVERSITY · PI SLOANE, BONNIE F · 2010 to 2012
$179k
FIC NIH HHS R03 TW008624NCI NIH HHS CA23378NCI NIH HHS R01 CA023378
6 · The paper itself

Abstract

This study was designed to examine determinants of the discovery that low-dose lysosomal photodamage (lyso-PDT) could potentiate the efficacy of subsequent low-dose mitochondrial photodamage (mito-PDT). The chlorin NPe6 and the benzoporphyrin derivative (BPD) were used to separately target lysosomes and mitochondria, respectively, in murine hepatoma cells. Lyso-PDT (LD(5) conditions) followed by mito-PDT (LD(15) conditions) enhanced the loss of the mitochondrial membrane potential, activation of procaspases-3/7 and photokilling. Reversing the sequence was less effective. The optimal sequence did not enhance reactive oxygen species formation above that obtained with low-dose mito-PDT. In contrast, alkalinization of lysosomes with bafilomycin also enhanced low-dose mito-PDT photokilling, but via a different pathway. This involves redistribution of iron from lysosomes to mitochondria leading to enhanced hydroxyl radical formation, effects not observed after the sequential procedure. Moreover, Ru360, an inhibitor of mitochondrial calcium and iron uptake, partially suppressed the ability of bafilomycin to enhance mito-PDT photokilling without affecting the enhanced efficacy of the sequential protocol. We conclude that sequential PDT protocol promotes PDT efficacy by a process not involving iron translocation, but via promotion of the pro-apoptotic signal that derives from mitochondrial photodamage.

Indexed as

PhotochemotherapyAnimalsCell Line, TumorMacrolidesMiceMitochondriaPhotosensitizing AgentsPorphyrinsReactive Oxygen SpeciesVerteporfinMacrolidesPhotosensitizing AgentsPorphyrinsReactive Oxygen SpeciesTalaporfinVerteporfin

Identifiers

PMID24617972
PMCPMC4082464
OpenAlexW2103692175

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.