Evidence map›Paper›PMID 18058365›Full record

ArticleInternational journal of radiation biology

alpha6 integrin cleavage: sensitizing human prostate cancer to ionizing radiation.

Sangita C Pawar, Shona Dougherty, Michael E Pennington, Manolis C Demetriou, B Dino Stea, Robert T Dorr, Anne E Cress

Abstract read
In one paragraph

Article in International journal of radiation biology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–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

15 citing papers in PubMed.

  1. Beyond DNA damage: 3D tumor models and the integrin mechanobiology of radioresistance.Journal of experimental & clinical cancer research : CR · 2026
    Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Impact of the adaptor protein GIPC1/Synectin on radioresistance and survival after irradiation of prostate cancer.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2012
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Integrins in prostate cancer progression.Endocrine-related cancer · 2008
    Review
  14. Review
  15. 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

7 authors.

Sangita C PawarThe Arizona Cancer Center, University of Arizona, Tucson, AZ 85724, USA.
Shona Dougherty
Michael E Pennington
Manolis C Demetriou
B Dino Stea
Robert T Dorr
Anne E Cress

Funding

VITAMIN AP30CA023074 · NCI · UNIVERSITY OF ARIZONA · PI Dan Theodorescu · 1985 to 2026
$110.2M
ROLE OF METALLOPROTEINASES AND TIMP IN HUMAN PROSTATE CELL INVASIONP01CA056666 · NCI · UNIVERSITY OF ARIZONA · PI HEIMARK, RONALD L. · 1993 to 2008
$6.3M
RADIATION SIGNALING THROUGH THE ALPHA6 BETA4 INTEGRINR01CA075152 · NCI · UNIVERSITY OF ARIZONA · PI CRESS, ANNE ELIZABETH · 1998 to 2005
$1.5M
NCI NIH HHS CA 23074NCI NIH HHS CA 56666NCI NIH HHS CA 75152NCI NIH HHS P01 CA056666NCI NIH HHS P30 CA023074NCI NIH HHS R01 CA075152
6 · The paper itself

Abstract

purposeThe goal was to determine if prostate tumor cells containing a mutant alpha6 integrin would be defective in tumor re-population following clinically relevant fractionated ionizing radiation (IR) treatments. MATERIAL AND

methodsHuman prostate cancer cells derived from PC3N cells were used which conditionally expressed a cleavable, wild type form of alpha6 integrin (PC3N-alpha6-WT) or a mutated non-cleavable form of alpha6 integrin (PC3N-alpha6-RR). The resulting tumor growth before, during and after fractionated doses of IR (3 Gyx10 days) was analyzed using the endpoints of tumor growth inhibition (T/C), tumor growth delay (T-C), tumor doubling time (Td) and tumor cell kill (Log(10) cell kill).

resultsThe T/C values were 36.1% and 39.5%, the T-C values were 20.5 days and 28.5 days and the Td values were 5.5 and 10.5 days for the irradiated PC3N-alpha6-WT and PC3N-alpha6-RR cells, respectively. The Log(10) was 1.1 for the PC3N-alpha6-WT cells and 0.8 for the PC3N-alpha6-RR cells. The tumor response to IR was altered in tumors expressing the mutant alpha6 integrin as indicated by a significant increase in tumor growth inhibition, an increase in tumor growth delay, an increase in tumor doubling time and an increase in tumor cell kill.

conclusionsBlocking integrin cleavage in vivo may be efficacious for increasing the IR responsiveness of slow growing, pro-metastatic human prostate cancer.

Indexed as

AnimalsBase SequenceCell Line, TumorDNA PrimersHumansIntegrin alpha6MaleMiceMice, Inbred BALB CMice, SCIDMutationNeoplasm TransplantationProstatic NeoplasmsRadiation ToleranceRecombinant ProteinsTransfectionDNA PrimersIntegrin alpha6Recombinant Proteins

Identifiers

PMID18058365
PMCPMC2732343

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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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.