Evidence map›Paper›PMID 22237842›Full record

ArticleEuropean journal of nuclear medicine and molecular imaging2012

Therapeutic efficacy and toxicity of 225Ac-labelled vs. 213Bi-labelled tumour-homing peptides in a preclinical mouse model of peritoneal carcinomatosis.

Markus Essler, Florian C Gärtner, Frauke Neff, Birgit Blechert, Reingard Senekowitsch-Schmidtke, Frank Bruchertseifer, Alfred Morgenstern, Christof Seidl

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in European journal of nuclear medicine and molecular imaging, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

33 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Review
  9. Treatment of Prostate Cancer with CD46-targeted 225Ac Alpha Particle Radioimmunotherapy.Clinical cancer research : an official journal of the American Association for Cancer Research · 2023
    Article
  10. First experience withFrontiers in medicine · 2023
    Article
  11. Article
  12. HarnessingJournal of nuclear medicine : official publication, Society of Nuclear Medicine · 2022
    Review
  13. Targeted α-therapy in non-prostate malignancies.European journal of nuclear medicine and molecular imaging · 2021
    Review
  14. Ac-EAZY! Towards GMP-Compliant Module Syntheses ofPharmaceuticals (Basel, Switzerland) · 2021
    Article
  15. Article
  16. Nanoparticles in Targeted Alpha Therapy.Nanomaterials (Basel, Switzerland) · 2020
    Review
  17. Review
  18. Alpha radioimmunotherapy usingTheranostics · 2020
    Article
  19. Review
  20. Article
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

8 authors.

Markus EsslerDepartment of Nuclear Medicine, Technische Universität München, Munich, Germany.
Florian C Gärtner
Frauke Neff
Birgit Blechert
Reingard Senekowitsch-Schmidtke
Frank Bruchertseifer
Alfred Morgenstern
Christof Seidl

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTargeted delivery of alpha-particle-emitting radionuclides is a promising novel option in cancer therapy. We generated stable conjugates of the vascular tumour-homing peptide F3 both with (225)Ac and (213)Bi that specifically bind to nucleolin on the surface of proliferating tumour cells. The aim of our study was to determine the therapeutic efficacy of (225)Ac-DOTA-F3 in comparison with that of (213)Bi-DTPA-F3.

methodsID(50) values of (213)Bi-DTPA-F3 and (225)Ac-DOTA-F3 were determined via clonogenic assays. The therapeutic efficacy of both constructs was assayed by repeated treatment of mice bearing intraperitoneal MDA-MB-435 xenograft tumours. Therapy was monitored by bioluminescence imaging. Nephrotoxic effects were analysed by histology.

resultsID(50) values of (213)Bi-DTPA-F3 and (225)Ac-DOTA-F3 were 53 kBq/ml and 67 Bq/ml, respectively. The median survival of control mice treated with phosphate-buffered saline was 60 days after intraperitoneal inoculation of 1 × 10(7) MDA-MB-435 cells. Therapy with 6 × 1.85 kBq of (225)Ac-DOTA-F3 or 6 × 1.85 MBq of (213)Bi-DTPA-F3 prolonged median survival to 95 days and 97 days, respectively. While F3 labelled with short-lived (213)Bi (t (1/2) 46 min) reduced the tumour mass at early time-points up to 30 days after treatment, the antitumour effect of (225)Ac-DOTA-F3 (t (1/2) 10 days) increased at later time-points. The difference in the fraction of necrotic cells after treatment with (225)Ac-DOTA-F3 (43%) and with (213)Bi-DTPA-F3 (36%) was not significant. Though histological analysis of kidney samples revealed acute tubular necrosis and tubular oedema in 10-30% of animals after treatment with (225)Ac-DOTA-F3 or (213)Bi-DTPA-F3, protein casts were negligible (2%), indicating only minor damage to the kidney.

conclusionTherapy with both (225)Ac-DOTA-F3 and (213)Bi-DTPA-F3 increased survival of mice with peritoneal carcinomatosis. Mild renal toxicity of both constructs favours future therapeutic application.

Indexed as

ActiniumAnimalsBismuthCell Line, TumorDisease Models, AnimalHeterocyclic Compounds, 1-RingHumansIsotope LabelingKidneyMiceOrganometallic CompoundsPentetic AcidPeptidesPeritoneal NeoplasmsRadioisotopesTreatment Outcome1,4,7,10-tetraazacyclododecane- 1,4,7,10-tetraacetic acid(213)Bi-DTPA-F3ActiniumBismuthHeterocyclic Compounds, 1-RingOrganometallic CompoundsPentetic AcidPeptidesRadioisotopes

Identifiers

What OpenQuestion holds

Textmetadata
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.