Evidence map›Paper›PMID 22542847›Full record

ArticleThe American journal of pathology2012

Spontaneous formation of tumorigenic hybrids between breast cancer and multipotent stromal cells is a source of tumor heterogeneity.

Germana Rappa, Javier Mercapide, Aurelio Lorico

Abstract read
In one paragraph

Article in The American journal of pathology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.

0numbers the graph read from it
0cells of the map it votes in
67citing 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

67 citing papers in PubMed.

  1. Implications of Heterotypic Cell Fusion in Cancer.Advances in experimental medicine and biology · 2026
    Review
  2. How Do Cancer Cells Fuse and Why?Advances in experimental medicine and biology · 2026
    Review
  3. Review
  4. Review
  5. Article
  6. Article
  7. Cell Fusion and Syncytia Formation in Cancer.Results and problems in cell differentiation · 2024
    Review
  8. Review
  9. Review
  10. Review
  11. Generation of Cancer Stem/Initiating Cells by Cell-Cell Fusion.International journal of molecular sciences · 2022
    Review
  12. Review
  13. Article
  14. Review
  15. Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. Review

7 more citing papers are in PubMed but not listed here.

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

3 authors.

Germana RappaNevada Cancer Institute, Las Vegas, NV, USA.
Javier Mercapide
Aurelio Lorico

Funding

PREPARATION AND DISTRUBUTION OF ADULT STEM CELLS: HUMAN &RODENTP40RR017447 · NCRR · TULANE UNIVERSITY OF LOUISIANA · PI PROCKOP, DARWIN JOHNSON · 2003 to 2011
$8.9M
Design of Therapeutic Strategies Specific for Breast Cancer Initiating CellsR01CA133797 · NCI · UNIVERSITY OF SOUTH ALABAMA · PI RAPPA, GERMANA · 2008 to 2012
$1.5M
NCI NIH HHS R01 CA133797NCI NIH HHS R01CA133797NCRR NIH HHS P40 RR017447NCRR NIH HHS P40RR017447
6 · The paper itself

Abstract

Breast cancer progression involves cancer cell heterogeneity, with generation of invasive/metastatic breast cancer cells within populations of nonmetastatic cells of the primary tumor. Sequential genetic mutations, epithelial-to-mesenchymal transition, interaction with local stroma, and formation of hybrids between cancer cells and normal bone marrow-derived cells have been advocated as tumor progression mechanisms. We report herein the spontaneous in vitro formation of heterotypic hybrids between human bone marrow-derived multipotent stromal cells (MSCs) and two different breast carcinoma cell lines, MDA-MB-231 (MDA) and MA11. Hybrids showed predominantly mesenchymal morphological characteristics, mixed gene expression profiles, and increased DNA ploidy. Both MA11 and MDA hybrids were tumorigenic in immunodeficient mice, and some MDA hybrids had an increased metastatic capacity. Both in culture and as xenografts, hybrids underwent DNA ploidy reduction and morphological reversal to breast carcinoma-like morphological characteristics, while maintaining a mixed breast cancer-mesenchymal expression profile. Analysis of coding single-nucleotide polymorphisms by RNA sequencing revealed genetic contributions from both parental partners to hybrid tumors and metastasis. Because MSCs migrate and localize to breast carcinoma, our findings indicate that formation of MSC-breast cancer cell hybrids is a potential mechanism of the generation of invasive/metastatic breast cancer cells. Our findings reconcile the fusion theory of cancer progression with the common observation that breast cancer metastases are generally aneuploid, but not tetraploid, and are histopathologically similar to the primary neoplasm.

Indexed as

Genetic HeterogeneityAnimalsBreast NeoplasmsCell FusionCell Transformation, NeoplasticCoculture TechniquesFemaleGene Expression ProfilingHumansHybrid CellsMiceMice, Inbred NODMice, SCIDMicroscopy, FluorescenceMultipotent Stem CellsNeoplasm Transplantation

Identifiers

PMID22542847
PMCPMC3378856

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.