Evidence map›Paper›PMID 37345237›Full record

ArticleThoracic cancer2023

Lactate secreted by esophageal cancer cells induces M2 macrophage polarization via the AKT/ERK pathway.

Chunsheng Zhang, Wei Cheng, Tongjin Yang, Hanlin Fang, Renquan Zhang

Open access · goldAbstract read
In one paragraph

Article in Thoracic cancer, 2023. 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
3.6field-weighted citation impact, top 7% 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, 22 citations in OpenAlex.

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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

5 authors at 3 institutions in 1 country.

Chunsheng ZhangDepartment of Thoracic Surgery, First Affiliated Hospital of Anhui Medical University, Hefei, China.ORCID 0009-0002-0158-1196
Wei ChengDepartment of Radiotherapy, Luan Hospital of Chinese Medicine affiliated to Anhui University of Chinese Medicine, Luan, China.
Tongjin YangLaboratory of Toxicology, Anhui Provincial Center for Disease Control and Prevention, Hefei, China.
Hanlin FangDepartment of Thoracic Surgery, First Affiliated Hospital of Anhui Medical University, Hefei, China.
Renquan ZhangDepartment of Thoracic Surgery, First Affiliated Hospital of Anhui Medical University, Hefei, China.
Anhui Medical University · CNAnhui Provincial Center for Disease Control and Prevention · CNAnhui University of Traditional Chinese Medicine · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundElevated lactate results in an acidic tumor microenvironment (TME), which stimulates the progression of esophageal cancer (EC). Tumor-associated macrophages (TAMs) are an essential component of the TME. However, the regulatory mechanisms of lactate secreted by EC on TAMs and the effects of EC advancement are unclear.

methodsProteins and mRNA expression were determined by western blot and RT-qPCR. Cell metastasis and growth were assessed by scratch assay, transwell and BrdU assays. Lactate in cells was quantified using a lactate kit. A mouse model was constructed for validation in vivo.

resultsFirst, we determined that lactate upgraded the M2-type polarization marker levels of macrophages. Cell function assays confirmed that lactate-activated M2 macrophages accelerated EC cell migration and proliferation in vitro. However, the lactate inhibitor - oxamate hampered the level of lactate in TE-1 cells. Oxamate abolished the facilitation of macrophage polarization by lactate. In addition, we discovered that phosphorylated AKT and phosphorylated ERK was obviously raised in lactate-stimulated macrophages, and oxamate addition reversed this change, implying that AKT and ERK signaling pathways were involved in macrophage polarization. Response experiments proved that attenuation of AKT/ERK signaling markedly returned the lactate-induced promotion of EC migration and proliferation by macrophages. Finally, mouse tumor models demonstrated that lactate enhanced EC growth by inducing M2 macrophage polarization.

conclusionEC-secreted lactate stimulated macrophage M2 polarization via the AKT/ERK pathway thereby boosting the growth of EC.

Indexed as

Esophageal NeoplasmsProto-Oncogene Proteins c-aktAnimalsCell Line, TumorHumansLactic AcidMacrophagesMAP Kinase Signaling SystemMiceTumor MicroenvironmentLactic AcidProto-Oncogene Proteins c-aktAKTECERKlactateM2 macrophages

Identifiers

PMID37345237
PMCPMC10396787
OpenAlexW4381598505

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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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.