Evidence map›Paper›PMID 33579227›Full record

ArticleBMC cancer2021

Fibronectin mediates activation of stromal fibroblasts by SPARC in endometrial cancer cells.

Sachiko Yoshida, Kazuo Asanoma, Hiroshi Yagi, Ichiro Onoyama, Emiko Hori, Yumiko Matsumura, Kaoru Okugawa, Hideaki Yahata, Kiyoko Kato

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
2.6field-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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Genetic Variations in the Fibronectin 1 Gene (International journal of molecular sciences · 2026
    Article
  3. Review
  4. Article
  5. Article
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  10. Curcumin inhibits the proliferation and migration of osteosarcoma by regulating the expression of superZhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2024
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  11. Article
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  13. American journal of cancer research · 2023
    Article
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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

9 authors at 1 institution in 1 country.

Sachiko YoshidaDepartment of Obstetrics and Gynecology, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
Kazuo AsanomaDepartment of Obstetrics and Gynecology, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan. asanoma@med.kyushu-u.ac.jp.ORCID http://orcid.org/0000-0003-4921-2859
Hiroshi YagiDepartment of Obstetrics and Gynecology, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
Ichiro OnoyamaDepartment of Obstetrics and Gynecology, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
Emiko HoriDepartment of Obstetrics and Gynecology, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
Yumiko MatsumuraDepartment of Obstetrics and Gynecology, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
Kaoru OkugawaDepartment of Obstetrics and Gynecology, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
Hideaki YahataDepartment of Obstetrics and Gynecology, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
Kiyoko KatoDepartment of Obstetrics and Gynecology, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
Kyushu University · JP

Funding

Japan Society for the Promotion of Science 15H01517, 15K15608Japan Society for the Promotion of Science 26462529, 17K11280
6 · The paper itself

Abstract

backgroundMatricellular glycoprotein, SPARC is a secreted molecule, that mediates the interaction between cells and extracellular matrix. SPARC functions as a regulator of matrix organization and modulates cell behavior. In various kinds of cancer, strong SPARC expression was observed in stromal tissues as well as in cancer epithelial cells. The function of SPARC in cancer cells is somewhat controversial and its impact on peritumoral stromal cells remains to be resolved.

methodsWe investigated the effects of SPARC expression in endometrial cancer cells on the surrounding stromal fibroblasts using in vitro co-culture system. Changes in characteristics of fibroblasts were examined by analysis of fibroblast-specific markers and in vitro contraction assay.

resultsSPARC induced AKT phosphorylation and epithelial-to-mesenchymal transition, consistent with previous reports. Cancer-associated fibroblasts of endometrial cancer expressed higher levels of mesenchymal- and fibroblast-associated factors and had a stronger contraction ability. Unexpectedly, cancer-associated fibroblasts expressed comparable levels of SPARC compared with fibroblasts from normal endometrium. However, co-culture of normal fibroblasts with SPARC-expressing Ishikawa cells resulted in activation of the fibroblasts. Immunodepletion of SPARC did not affect the activation of fibroblasts.

conclusionsOur data indicated that SPARC activated fibroblasts only in the presence of fibronectin, which was abundantly secreted from SPARC-expressing endometrial cancer cells. These results suggested that a SPARC-fibronectin-mediated activation of fibroblasts might be involved in enhanced mobility and invasion of cancer cells.

Indexed as

Cell MovementEpithelial-Mesenchymal TransitionCell Line, TumorCells, CulturedEndometrial NeoplasmsExtracellular MatrixFemaleFibroblastsFibronectinsHumansOsteonectinPhosphorylationProto-Oncogene Proteins c-aktAKT1 protein, humanFibronectinsFN1 protein, humanOsteonectinProto-Oncogene Proteins c-aktSPARC protein, humanCancer-associated fibroblastsEndometrial neoplasmsExtracellular matrixFN1SPARC

Identifiers

PMID33579227
PMCPMC7881467
OpenAlexW3129021514

What OpenQuestion holds

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LicenceCC BY
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.