Evidence map›Paper›PMID 38341509›Full record

ArticleBritish journal of cancer2024

Unraveling the impact of cancer-associated fibroblasts on hypovascular pancreatic neuroendocrine tumors.

Ting-Yu Lai, Tsai-Chen Chiang, Chih-Yuan Lee, Ting-Chun Kuo, Chien-Hui Wu, Yi-Ing Chen, Chun-Mei Hu, Manjit Maskey, Shiue-Cheng Tang, Yung-Ming Jeng and 3 more

Open access · hybridAbstract read
In one paragraph

Article in British journal of cancer, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
3.7field-weighted citation impact, top 6% 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

11 citing papers in PubMed, 13 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

13 authors at 5 institutions in 2 countries.

Ting-Yu Lai *Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan.
Tsai-Chen Chiang *Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan.
Chih-Yuan LeeDepartment of Surgery, National Taiwan University Hospital, Taipei, Taiwan.
Ting-Chun KuoDepartment of Surgery, National Taiwan University Hospital, Taipei, Taiwan.ORCID 0000-0003-1960-1423
Chien-Hui WuDepartment of Surgery, National Taiwan University Hospital, Taipei, Taiwan.
Yi-Ing ChenGenomics Research Center, Academia Sinica, Taipei, Taiwan.
Chun-Mei HuGenomics Research Center, Academia Sinica, Taipei, Taiwan.
Manjit MaskeyDepartment of Internal Medicine, University of Texas Medical Branch, Galveston, TX, USA.
Shiue-Cheng TangDepartment of Medical Science, National Tsing Hua University, Hsinchu, Taiwan.
Yung-Ming JengDepartment of Pathology, National Taiwan University Hospital, Taipei, Taiwan.ORCID 0000-0002-9986-7194
Yu-Wen TienDepartment of Surgery, National Taiwan University Hospital, Taipei, Taiwan. ywtien5106@ntu.edu.tw.ORCID 0000-0002-9126-2705
Eva Y-H P LeeGenomics Research Center, Academia Sinica, Taipei, Taiwan.
Wen-Hwa LeeGenomics Research Center, Academia Sinica, Taipei, Taiwan.ORCID 0000-0002-3117-931X
National Taiwan University Hospital · TWGenomics Research Center, Academia Sinica · TWNational Tsing Hua University · TWThe University of Texas Medical Branch at Galveston · USUniversity of California, Irvine · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPancreatic neuroendocrine tumors (PNETs) with low microvessel density and fibrosis often exhibit clinical aggressiveness. Given the contribution of cancer-associated fibroblasts (CAFs) to the hypovascular fibrotic stroma in pancreatic ductal adenocarcinoma, investigating whether CAFs play a similar role in PNETs becomes imperative. In this study, we investigated the involvement of CAFs in PNETs and their effects on clinical outcomes.

methodsWe examined 79 clinical PNET specimens to evaluate the number and spatial distribution of α-smooth muscle actin (SMA)-positive cells, which are indicative of CAFs. Then, the findings were correlated with clinical outcomes. In vitro and in vivo experiments were conducted to assess the effects of CAFs (isolated from clinical specimens) on PNET metastasis and growth. Additionally, the role of the stromal-cell-derived factor 1 (SDF1)-AGR2 axis in mediating communication between CAFs and PNET cells was investigated.

resultsαSMA-positive and platelet-derived growth factor-α-positive CAFs were detected in the hypovascular stroma of PNET specimens. A higher abundance of α-SMA-positive CAFs within the PNET stroma was significantly associated with a higher level of clinical aggressiveness. Notably, conditioned medium from PNET cells induced an inflammatory phenotype in isolated CAFs. These CAFs promoted PNET growth and metastasis. Mechanistically, PNET cells secreted interleukin-1, which induced the secretion of SDF1 from CAFs. This cascade subsequently elevated AGR2 expression in PNETs, thereby promoting tumor growth and metastasis. The downregulation of AGR2 in PNET cells effectively suppressed the CAF-mediated promotion of PNET growth and metastasis.

conclusionCAFs drive the growth and metastasis of aggressive PNETs. The CXCR4-SDF1 axis may be a target for antistromal therapy in the treatment of PNET. This study clarifies mechanisms underlying PNET aggressiveness and may guide future therapeutic interventions targeting the tumor microenvironment.

Indexed as

Cancer-Associated FibroblastsNeuroectodermal Tumors, PrimitiveNeuroendocrine TumorsPancreatic NeoplasmsCell Line, TumorFibroblastsHumansMucoproteinsOncogene ProteinsTumor MicroenvironmentAGR2 protein, humanMucoproteinsOncogene Proteins

Identifiers

PMID38341509
PMCPMC10991442
OpenAlexW4391722061

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.