Evidence map›Paper›PMID 31139014›Full record

ArticleCancer cell international2019

Low expression of SPARC in gastric cancer-associated fibroblasts leads to stemness transformation and 5-fluorouracil resistance in gastric cancer.

Yongchen Ma, Jing Zhu, Shanwen Chen, Ju Ma, Xiaoqian Zhang, Sixia Huang, Jianwen Hu, Taohua Yue, Junling Zhang, Pengyuan Wang and 5 more

Open access · goldAbstract read
In one paragraph

Article in Cancer cell international, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
4.2field-weighted citation impact, top 5% 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

28 citing papers in PubMed, 37 citations in OpenAlex.

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  13. CAF promotes chemoresistance through NRP2 in gastric cancer.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2022
    Article
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  20. SPARC regulates ferroptosis induced by sorafenib in human hepatocellular carcinoma.Cancer biomarkers : section A of Disease markers · 2021
    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

15 authors at 1 institution in 1 country.

Yongchen Ma1Department of General Surgery, Peking University First Hospital, Beijing, 100034 People's Republic of China.
Jing Zhu1Department of General Surgery, Peking University First Hospital, Beijing, 100034 People's Republic of China.
Shanwen Chen1Department of General Surgery, Peking University First Hospital, Beijing, 100034 People's Republic of China.
Ju Ma1Department of General Surgery, Peking University First Hospital, Beijing, 100034 People's Republic of China.
Xiaoqian Zhang1Department of General Surgery, Peking University First Hospital, Beijing, 100034 People's Republic of China.
Sixia Huang2Department of Pathology, Peking University First Hospital, Beijing, 100034 People's Republic of China.
Jianwen Hu1Department of General Surgery, Peking University First Hospital, Beijing, 100034 People's Republic of China.
Taohua Yue1Department of General Surgery, Peking University First Hospital, Beijing, 100034 People's Republic of China.
Junling Zhang1Department of General Surgery, Peking University First Hospital, Beijing, 100034 People's Republic of China.
Pengyuan Wang1Department of General Surgery, Peking University First Hospital, Beijing, 100034 People's Republic of China.
Xin Wang1Department of General Surgery, Peking University First Hospital, Beijing, 100034 People's Republic of China.
Long Rong3Department of Endoscopic Center, Peking University First Hospital, Beijing, 100034 People's Republic of China.
Hongjie Guo4Department of Interventional Radiology and Vascular Surgery, Peking University First Hospital, Beijing, 100034 People's Republic of China.
Guowei Chen1Department of General Surgery, Peking University First Hospital, Beijing, 100034 People's Republic of China.ORCID 0000-0002-7440-5639
Yucun Liu1Department of General Surgery, Peking University First Hospital, Beijing, 100034 People's Republic of China.
Peking University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe aim of the present study was to clarify the correlations between SPARC expression in gastric cancer-associated fibroblasts (GCAFs) and the prognosis of patients with gastric cancer and to elucidate the role of GCAF-derived SPARC in stemness transformation and 5-fluorouracil resistance in gastric cancer.

methodsOne hundred ninety-two patients were enrolled in the present study. SPARC expression levels were evaluated by immunohistochemical staining. Primary GCAFs were obtained and cultured from cancer patients for in vitro study, and a lentivirus infection method was employed to knock down SPARC expression in GCAFs. The stemness phenotype and 5-fluorouracil (5-FU) response of gastric cancer cells were assessed via a 3D co-culture model. The apoptotic status and stemness alterations were monitored by flow cytometry and western blotting. Additionally, label-free quantification proteomics was used to identify the differentially expressed proteins and potential pathways in gastric cancer cells treated with GCAF-derived SPARC.

resultsLow expression of GCAF-derived SPARC was associated with decreased differentiation and reduced 5-year overall survival and was an independent predictive factor for prognosis in gastric cancer. The 3D tumour growth and 5-FU resistance abilities of gastric cancer cells were elevated after treatment with GCAFs with SPARC knockdown relative to these abilities in negative control cells. Additionally, suppressing SPARC expression in GCAFs facilitated the phenotypic alteration of gastric cancer cells towards CD44

conclusionsSPARC expression in GCAFs is a useful prognostic factor in patients with gastric cancer. Low expression of GCAF-derived SPARC can lead to CSC transformation and 5-FU resistance. Additionally, the AKT/mTOR and MEK/ERK signalling pathways may participate in the malignant process.

Indexed as

Cancer-associated fibroblastsDrug resistanceGastric cancerSPARCStemness

Identifiers

PMID31139014
PMCPMC6528188
OpenAlexW2947711376

What OpenQuestion holds

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LicenceCC BY
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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.