ArticleNuclear medicine communications2011
Poly(ADP-ribose) polymerase inhibitors combined with external beam and radioimmunotherapy to treat aggressive lymphoma.
Article in Nuclear medicine communications, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
What it found
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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.
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.
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Who cites it
13 citing papers in PubMed, 18 citations in OpenAlex.
- PARP Inhibitors as Radiosensitizers: Current Evidence and Future Directions.Current oncology reports · 2026Review
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- DNA damage repair: historical perspectives, mechanistic pathways and clinical translation for targeted cancer therapy.Signal transduction and targeted therapy · 2021Review
- PARP goes the weasel! Emerging role of PARP inhibitors in acute leukemias.Blood reviews · 2021Review
- Veliparib in ovarian cancer: a new synthetically lethal therapeutic approach.Investigational new drugs · 2020Review
- The PARP inhibitor olaparib enhances the cytotoxicity of combined gemcitabine, busulfan and melphalan in lymphoma cells.Leukemia & lymphoma · 2017Article
- Whither Radioimmunotherapy: To Be or Not To Be?Cancer research · 2017Review
- Article
- Profile of veliparib and its potential in the treatment of solid tumors.OncoTargets and therapy · 2015Review
- A Phase I study of veliparib (ABT-888) in combination with low-dose fractionated whole abdominal radiation therapy in patients with advanced solid malignancies and peritoneal carcinomatosis.Clinical cancer research : an official journal of the American Association for Cancer Research · 2015Article
- Molecular pathways: targeting PARP in cancer treatment.Clinical cancer research : an official journal of the American Association for Cancer Research · 2013Article
- Role of PARP inhibitors in cancer biology and therapy.Current medicinal chemistry · 2012Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
Abstract
purposeTo assess the possible radiosensitizing capabilities of two different poly(ADP-ribose) polymerase (PARP) inhibitors in combination with external beam and I-tositumomab in a non-Hodgkin's lymphoma cell line. METHODS AND MATERIALS: Epstein-Barr virus-infected human Raji lymphoma cells with lentivirally transfected green fluorescent protein and luciferase in log-phase growth were incubated with various doses of AZD-2281 and ABT-888 24 h before external beam radiation exposure. A 500 nmol/l concentration of AZD-2281 and ABT-888 was used to assess the growth curve of Raji lymphoma cells over 5 days. The number of double-stranded breaks was visually assessed using a H2AX antibody and confocal microscopy. Intracellular PARP activity was measured 2 h after incubation with AZD-2281 (500 nmol/l) and ABT-888 using a colorimetric PARP assay kit. The radiosensitizing effect of AZD-2281 (500 nmol/l) with various doses of I-tositumomab was assessed after 24 h.
resultsA volume of 500 nmol/l of AZD-2281 and 500 nmol/l of ABT-888, in combination with 0, 4, 8, and 12 Gy external beam radiation, showed a 5.2, 7.1, 10.1, and 33.1% radiosensitization. A measure of 500 nmol/l AZD-2281 and ABT-888 significantly reduced the percentage of viable cells on days 3-5 compared with controls. The maximal relative reduction in viable cells was 78.5%, and this occurred with AZD-2281 (500 nmol/l) on day 5. AZD-2281 revealed a higher number of double-stranded breaks with confocal microscopy than did ABT-888. Two hours after incubation of Raji cells with 500 nmol/l of AZD-2281 or ABT-888, the colorimetric PARP activity assay showed a reduction of 30.36% with ABT-888 and of 47.8% with AZD-2281. Combining AZD-2281 (500 nmol/l) with 0, 5 μCi (0.185 MBq), 10 μCi (0.37 MBq) and 20 μCi (0.74 MBq) ¹³¹I-tositumomab revealed a significant reduction in cell viability after 24 h with 5 μCi (0.185 MBq) (P<0.01) and 10 μCi (0.37 MBq) (P<0.01) radiation dose.
conclusionPARP inhibitors AZD-2281 and ABT-888 are highly radiosensitizing agents when used before external beam radiation and ¹³¹I-tositumomab.
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Registered trials
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.