Evidence map›Paper›PMID 24618817›Full record

ArticlePloS one2014

Hypoxia promotes migration and induces CXCR4 expression via HIF-1α activation in human osteosarcoma.

Mingjun Guo, Chengkui Cai, Guangyi Zhao, Xiuchun Qiu, Haien Zhao, Qiong Ma, Liying Tian, Xuelian Li, Yunsheng Hu, Bo Liao and 2 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed, 2 pooled it
6.0field-weighted citation impact, top 3% 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

63 citing papers in PubMed, 2 syntheses or guidelines pooled it, 91 citations in OpenAlex.

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3 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

12 authors at 2 institutions in 1 country.

Mingjun GuoDepartment of Orthopaedics, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China.
Chengkui CaiDepartment of Orthopaedics, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China.
Guangyi ZhaoDepartment of Orthopaedics, Bethune International Peace Hospital, Shijiazhuang, Hebei, People's Republic of China.
Xiuchun QiuDepartment of Orthopaedics, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China.
Haien ZhaoDepartment of Orthopaedics, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China.
Qiong MaDepartment of Orthopaedics, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China.
Liying TianDepartment of Anesthesiology, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China.
Xuelian LiDepartment of Surgery, Xi'an Hospital of TCM, Shaanxi, People's Republic of China.
Yunsheng HuDepartment of Orthopaedics, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China.
Bo LiaoDepartment of Orthopaedics, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China.
Baoan MaDepartment of Orthopaedics, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China.
Qingyu FanDepartment of Orthopaedics, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China.
Air Force Medical University · CNBethune International Peace Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCellular adaptation to a hypoxic microenvironment is essential for tumor progression and is largely mediated by HIF-1α through coordinated regulation of hypoxia-responsive genes. The chemokine SDF-1α and its unique receptor CXCR4 have been implicated in organ-specific metastases of many cancers. In this study, we investigated the response of osteosarcoma cells to hypoxia and the expression of CXCR4 and HIF-1α in human osteosarcoma specimens and explored the roles of CXCR4 and HIF-1α in the cell migration process. METHODOLOGY/PRINCIPAL

findingsWe performed immunohistochemistry, immunocytochemistry, quantitative real-time PCR, Western blots and fluorescent reporter assays to evaluate the correlation between CXCR4 and HIF-1α expression in human osteosarcoma specimens or SOSP-9607 cells under normoxic and hypoxic conditions. Transwell assays were used to assess cell migration under different conditions. Exposure of SOSP-9607 cells to hypoxic conditions resulted in significantly increased migration. When SOSP-9607 cells were subjected to hypoxic conditions, the mRNA and protein levels of CXCR4 were significantly increased in a time-dependent manner. Moreover, siHIF-1α significantly decreased the mRNA and protein levels of CXCR4 under hypoxia, whereas pcDNA-HIF-1α significantly increased the mRNA and protein levels of CXCR4 under normoxia. A luciferase reporter gene study showed that siHIF-1α reduced pGL3-CXCR4 luciferase activity. Furthermore, coexpression of HIF-1α and CXCR4 was significantly higher in patients with distant metastasis compared with those without metastasis. CONCLUSIONS/SIGNIFICANCE: The hypoxia-HIF-1α-CXCR4 pathway plays a crucial role during the migration of human osteosarcoma cells, and targeting this pathway might represent a novel therapeutic strategy for patients suffering from osteosarcoma.

Indexed as

Gene Expression Regulation, NeoplasticAdolescentAdultCell HypoxiaCell Line, TumorCell MovementFemaleHumansHypoxiaHypoxia-Inducible Factor 1, alpha SubunitMaleNeoplasm MetastasisNeoplasm StagingOsteosarcomaReceptors, CXCR4Tumor BurdenHypoxia-Inducible Factor 1, alpha SubunitReceptors, CXCR4

Identifiers

PMID24618817
PMCPMC3949690
OpenAlexW2047066993

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.