Evidence map›Paper›PMID 18421566›Full record

ArticleClinical & experimental metastasis2008

Bone resorption increases tumour growth in a mouse model of osteosclerotic breast cancer metastasis.

Yu Zheng, Hong Zhou, Colette Fong-Yee, James R K Modzelewski, Markus J Seibel, Colin R Dunstan

Abstract read
PubMed Publisher
In one paragraph

Article in Clinical & experimental metastasis, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

19 citing papers in PubMed, 45 citations in OpenAlex.

  1. Trial
  2. The anti-tumor agent sagopilone shows antiresorptive effects both in vitro and in vivo.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2011
    Trial
  3. Article
  4. Review
  5. The Osteoclast Traces the Route to Bone Tumors and Metastases.Frontiers in cell and developmental biology · 2022
    Review
  6. Review
  7. Review
  8. Review
  9. Article
  10. Article
  11. Cancer Cell Colonisation in the Bone Microenvironment.International journal of molecular sciences · 2016
    Review
  12. RANK-RANKL signalling in cancer.Bioscience reports · 2016
    Review
  13. Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. 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

6 authors at 3 institutions in 1 country.

Yu ZhengBone Research Program, ANZAC Research Institute, University of Sydney, Hospital Road, Concord, Sydney, Australia.
Hong Zhou
Colette Fong-Yee
James R K Modzelewski
Markus J Seibel
Colin R Dunstan
University of Sydney · AUSydney Hospital · AUAnzac Research Institute · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Osteosclerotic metastases account for 20% of breast cancer metastases with the remainder osteolytic or mixed. In mouse models, osteolytic metastases are dependent on bone resorption for their growth. However, whether the growth of osteosclerotic bone metastases depends on osteoclast or osteoblast actions is uncertain. In this study, we investigate the effects of high and low bone resorption on tumour growth in a mouse model of osteosclerotic metastasis. We implanted human breast cancer, MCF-7, cells into the tibiae of mice. Low and high levels of bone resorption were induced by osteoprotegerin (OPG) treatment or calcium deficient diet respectively. We demonstrate that OPG treatment significantly reduces tumour area compared to vehicle (0.42 +/- 0.06 vs. 1.27 +/- 0.16 mm2, P < 0.01) in association with complete inhibition of osteoclast differentiation. In contrast, low calcium diet increases tumour area compared to normal diet (0.90 +/- 0.30 vs. 0.58 +/- 0.20 mm2, P < 0.05) in association with increased osteoclast numbers (84.44 +/- 5.18 vs. 71.11 +/- 3.56 per mm2 bone lesion area, P < 0.05). Osteoblast surfaces and new woven bone formation were similarly increased within the tumour boundaries in all treatment groups. Tumour growth in this model of osteosclerotic metastasis is dependent on ongoing bone resorption, as has been observed in osteolytic models. Bone resorption, rather than bone formation, apparently mediates this effect as osteoblast surfaces in the tumour mass were unchanged by treatments. Treatment of breast cancer patients through correction of calcium deficiency and/or with anti-resorptive agents such as OPG, may improve patient outcomes in the adjuvant as well as palliative settings.

Indexed as

AnimalsBone NeoplasmsBone ResorptionCalciumCell DifferentiationDietDisease Models, AnimalFemaleHumansMammary Neoplasms, ExperimentalMiceMice, NudeOsteoblastsOsteoclastsOsteoprotegerinOsteosclerosisCalciumOsteoprotegerin

Identifiers

PMID18421566
OpenAlexW1974444359

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.