Evidence map›Paper›PMID 32633891›Full record

ArticleJournal of cellular and molecular medicine2020

Positive feedback in Cav-1-ROS signalling in PSCs mediates metabolic coupling between PSCs and tumour cells.

Shan Shao, Tao Qin, Weikun Qian, Yangyang Yue, Ying Xiao, Xuqi Li, Dong Zhang, Zheng Wang, Qingyong Ma, Jianjun Lei

RetractedOpen access · goldAbstract readRetracted Publication
In one paragraph

Article in Journal of cellular and molecular medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 12% 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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 22 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 1 institution in 1 country.

Shan ShaoDepartment of Oncology, First affiliated hospital of Xi'an Jiaotong University, Xi'an, China.
Tao QinDepartment of Hepatobiliary Surgery, First affiliated hospital of Xi'an Jiaotong University, Xi'an, China.
Weikun QianDepartment of Hepatobiliary Surgery, First affiliated hospital of Xi'an Jiaotong University, Xi'an, China.
Yangyang YueDepartment of Hepatobiliary Surgery, First affiliated hospital of Xi'an Jiaotong University, Xi'an, China.
Ying XiaoDepartment of Hepatobiliary Surgery, First affiliated hospital of Xi'an Jiaotong University, Xi'an, China.
Xuqi LiDepartment of General Surgery, First affiliated hospital of Xi'an Jiaotong University, Xi'an, China.
Dong ZhangDepartment of Hepatobiliary Surgery, First affiliated hospital of Xi'an Jiaotong University, Xi'an, China.
Zheng WangDepartment of Hepatobiliary Surgery, First affiliated hospital of Xi'an Jiaotong University, Xi'an, China.
Qingyong MaDepartment of Hepatobiliary Surgery, First affiliated hospital of Xi'an Jiaotong University, Xi'an, China.
Jianjun LeiDepartment of Hepatobiliary Surgery, First affiliated hospital of Xi'an Jiaotong University, Xi'an, China.ORCID 0000-0001-8258-705X
First Affiliated Hospital of Xi'an Jiaotong University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Caveolin-1 (Cav-1) is the principal structural component of caveolae, and its dysregulation occurs in cancer. However, the role of Cav-1 in pancreatic cancer (PDAC) tumorigenesis and metabolism is largely unknown. In this study, we aimed to investigate the effect of pancreatic stellate cell (PSC) Cav-1 on PDAC metabolism and aggression. We found that Cav-1 is expressed at low levels in PDAC stroma and that the loss of stromal Cav-1 is associated with poor survival. In PSCs, knockdown of Cav-1 promoted the production of reactive oxygen species (ROS), while ROS production further reduced the expression of Cav-1. Positive feedback occurs in Cav-1-ROS signalling in PSCs, which promotes PDAC growth and induces stroma-tumour metabolic coupling in PDAC. In PSCs, positive feedback in Cav-1-ROS signalling induced a shift in energy metabolism to glycolysis, with up-regulated expression of glycolytic enzymes (hexokinase 2 (HK-2), 6-phosphofructokinase (PFKP) and pyruvate kinase isozyme type M2 (PKM2)) and transporter (Glut1) expression and down-regulated expression of oxidative phosphorylation (OXPHOS) enzymes (translocase of outer mitochondrial membrane 20 (TOMM20) and NAD(P)H dehydrogenase [quinone] 1 (NQO1)). These events resulted in high levels of glycolysis products such as lactate, which was secreted by up-regulated monocarboxylate transporter 4 (MCT4) in PSCs. Simultaneously, PDAC cells took up these glycolysis products (lactate) through up-regulated MCT1 to undergo OXPHOS, with down-regulated expression of glycolytic enzymes (HK-2, PFKP and PKM2) and up-regulated expression of OXPHOS enzymes (TOMM20 and NQO1). Interrupting the metabolic coupling between the stroma and tumour cells may be an effective method for tumour therapy.

Indexed as

Feedback, PhysiologicalCarcinoma, Pancreatic DuctalCaveolin 1FibroblastsGlycolysisHumansMitochondriaOxidative PhosphorylationPancreatic NeoplasmsPancreatic Stellate CellsPrognosisReactive Oxygen SpeciesStromal CellsSurvival RateTumor MicroenvironmentCAV1 protein, humanCaveolin 1Reactive Oxygen Speciespancreatic cancerpancreatic stellate cellspositive feedback in Cav-1-ROS signallingstroma-tumour metabolic coupling

Identifiers

PMID32633891
PMCPMC7417714
OpenAlexW3042030729

What OpenQuestion holds

Textmetadata
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.