Evidence map›Paper›PMID 36125535›Full record

ArticleJournal of cancer research and clinical oncology2023

Secretome analysis reveals reduced expression of COL4A2 in hypoxic cancer-associated fibroblasts with a tumor-promoting function in gastric cancer.

Seo-Gyu Park, Mi-Jung Ji, In-Hye Ham, Yoon-Hee Shin, Su-Min Lee, Chang Hoon Lee, Eunjung Kim, Hoon Hur, Hyun-Mee Park, Jae-Young Kim

Open access · greenAbstract read
In one paragraph

Article in Journal of cancer research and clinical oncology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.9field-weighted citation impact, top 23% 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

10 citing papers in PubMed, 11 citations in OpenAlex.

  1. Review
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  4. [Multidimensional characteristics of the tumor microenviron-ment and advances in targeted delivery strategies].Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences · 2025
    Review
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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

10 authors at 4 institutions in 1 country.

Seo-Gyu ParkGraduate School of Analytical Science and Technology (GRAST), Chungnam National University, Daejeon, 34134, Republic of Korea.
Mi-Jung JiAdvanced Analysis and Data Center, Korea Institute of Science and Technology (KIST), Seoul, 02456, Republic of Korea.
In-Hye HamDepartment of Surgery, Ajou University School of Medicine, Suwon, 16499, Republic of Korea.
Yoon-Hee ShinGraduate School of Analytical Science and Technology (GRAST), Chungnam National University, Daejeon, 34134, Republic of Korea.
Su-Min LeeGraduate School of Analytical Science and Technology (GRAST), Chungnam National University, Daejeon, 34134, Republic of Korea.
Chang Hoon LeeTherapeutics and Biotechnology Division, Drug Discovery Platform Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon, 34114, Republic of Korea.
Eunjung KimNatural Product Informatics Center, Korea Institute of Science and Technology (KIST), Gangneung, 25451, Republic of Korea.
Hoon HurDepartment of Surgery, Ajou University School of Medicine, Suwon, 16499, Republic of Korea.
Hyun-Mee ParkAdvanced Analysis and Data Center, Korea Institute of Science and Technology (KIST), Seoul, 02456, Republic of Korea.
Jae-Young KimGraduate School of Analytical Science and Technology (GRAST), Chungnam National University, Daejeon, 34134, Republic of Korea. jaeyoungkim@cnu.ac.kr.
Chungnam National University · KRKorea Institute of Science and Technology · KRAjou University · KRKorea Research Institute of Chemical Technology · KR

Funding

Korea Institute of Science and Technology Research Project 2V09190National Research Foundation of Korea 2020R1F1A1073114 and 2014R1A6A9064166
6 · The paper itself

Abstract

backgroundCancer-associated fibroblasts (CAFs) are major components of the tumor microenvironment (TME). Hypoxic TME is known to promote tumor progression. However, how a hypoxic condition regulates CAFs remains elusive.

methodsTo investigate the underlying mechanism involved in the regulation of gastric cancer (GC) progression by hypoxic CAFs, we performed secretome profiling. Normoxic or hypoxic CAFs conditioned media (CM) were filter-concentrated and in-gel trypsin digested. Resulting peptides were analyzed with LC-MS/MS.

resultsWe observed that CM derived from hypoxic CAFs could promote migration of a panel of GC cell lines (AGS, SNU668, SNU638). Mass spectrometry analysis of hypoxic or normoxic CAFs CM identified 1595 proteins, of which 19 proteins (10 upregulated and 9 downregulated) were differentially expressed in the hypoxic secretome. We focused on COL4A2, whose expression was significantly decreased in hypoxic CAFs in HIF-1α-independent manner. Silencing of COL4A2 expression in normoxic CAFs phenocopied the effect of hypoxic CAFs in promoting GC cell migration.

conclusionsThe reduced expression of COL4A2 in a hypoxic environment might be associated with the tumor-promoting role of hypoxic CAFs in GC.

Indexed as

Cancer-Associated FibroblastsStomach NeoplasmsCell Line, TumorCell ProliferationChromatography, LiquidCollagen Type IVFibroblastsHumansSecretomeTandem Mass SpectrometryTumor MicroenvironmentCOL4A2 protein, humanCollagen Type IVCancer-associated fibroblasts (CAFs)COL4A2LC–MSSecretome

Identifiers

PMID36125535
PMCPMC11798037
OpenAlexW4296416785

What OpenQuestion holds

Textmetadata
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.