Proteomic characterization and bioinformatic insights into MUC18 function in gastric cancer

Abstract MUC18 is a transmembrane glycoprotein associated with epithelial–mesenchymal transition, immune escape, and poor prognosis in cancer. However, the molecular mechanisms underlying MUC18’s role in gastric cancer (GC) progression remain unclear. In this study, we aimed to elucidate MUC18’s rol...

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Main Authors: Sung-Jin Kim, Su-Min Lee, Yun-Jeong Seo, Jae-Young Kim
Format: Article
Language:English
Published: SpringerOpen 2025-05-01
Series:Journal of Analytical Science and Technology
Subjects:
Online Access:https://doi.org/10.1186/s40543-025-00489-x
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author Sung-Jin Kim
Su-Min Lee
Yun-Jeong Seo
Jae-Young Kim
author_facet Sung-Jin Kim
Su-Min Lee
Yun-Jeong Seo
Jae-Young Kim
author_sort Sung-Jin Kim
collection DOAJ
description Abstract MUC18 is a transmembrane glycoprotein associated with epithelial–mesenchymal transition, immune escape, and poor prognosis in cancer. However, the molecular mechanisms underlying MUC18’s role in gastric cancer (GC) progression remain unclear. In this study, we aimed to elucidate MUC18’s role in GC. MUC18 knockdown reduced the migration and proliferation of GC cells and marginally affected the downstream signaling pathways of receptor tyrosine kinases. To uncover the novel underlying mechanisms of MUC18 involvement in GC progression, we conducted a global proteome analysis and identified and quantified 1463 proteins. Pathway analysis of differentially expressed proteins (DEP) following MUC18 knockdown revealed their potential involvement in cancer metabolism. We identified core protein–protein interaction network modules enriched with DEPs, highlighting the cellular processes and signaling pathways regulated by MUC18 in GC. Our study also identified six proteins whose expression was downregulated by MUC18 knockdown and was associated with a poor prognosis in GC, suggesting that they could be potential downstream effectors of MUC18 involved in GC progression.
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spelling doaj-art-bfb66370e3b84d4c84ef5ae5c689f13f2025-08-20T01:51:36ZengSpringerOpenJournal of Analytical Science and Technology2093-33712025-05-0116111110.1186/s40543-025-00489-xProteomic characterization and bioinformatic insights into MUC18 function in gastric cancerSung-Jin Kim0Su-Min Lee1Yun-Jeong Seo2Jae-Young Kim3Graduate School of Analytical Science and Technology (GRAST), Chungnam National UniversityGraduate School of Analytical Science and Technology (GRAST), Chungnam National UniversityGraduate School of Analytical Science and Technology (GRAST), Chungnam National UniversityGraduate School of Analytical Science and Technology (GRAST), Chungnam National UniversityAbstract MUC18 is a transmembrane glycoprotein associated with epithelial–mesenchymal transition, immune escape, and poor prognosis in cancer. However, the molecular mechanisms underlying MUC18’s role in gastric cancer (GC) progression remain unclear. In this study, we aimed to elucidate MUC18’s role in GC. MUC18 knockdown reduced the migration and proliferation of GC cells and marginally affected the downstream signaling pathways of receptor tyrosine kinases. To uncover the novel underlying mechanisms of MUC18 involvement in GC progression, we conducted a global proteome analysis and identified and quantified 1463 proteins. Pathway analysis of differentially expressed proteins (DEP) following MUC18 knockdown revealed their potential involvement in cancer metabolism. We identified core protein–protein interaction network modules enriched with DEPs, highlighting the cellular processes and signaling pathways regulated by MUC18 in GC. Our study also identified six proteins whose expression was downregulated by MUC18 knockdown and was associated with a poor prognosis in GC, suggesting that they could be potential downstream effectors of MUC18 involved in GC progression.https://doi.org/10.1186/s40543-025-00489-xGastric cancerLC–MSMUC18Proteomics
spellingShingle Sung-Jin Kim
Su-Min Lee
Yun-Jeong Seo
Jae-Young Kim
Proteomic characterization and bioinformatic insights into MUC18 function in gastric cancer
Journal of Analytical Science and Technology
Gastric cancer
LC–MS
MUC18
Proteomics
title Proteomic characterization and bioinformatic insights into MUC18 function in gastric cancer
title_full Proteomic characterization and bioinformatic insights into MUC18 function in gastric cancer
title_fullStr Proteomic characterization and bioinformatic insights into MUC18 function in gastric cancer
title_full_unstemmed Proteomic characterization and bioinformatic insights into MUC18 function in gastric cancer
title_short Proteomic characterization and bioinformatic insights into MUC18 function in gastric cancer
title_sort proteomic characterization and bioinformatic insights into muc18 function in gastric cancer
topic Gastric cancer
LC–MS
MUC18
Proteomics
url https://doi.org/10.1186/s40543-025-00489-x
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AT suminlee proteomiccharacterizationandbioinformaticinsightsintomuc18functioningastriccancer
AT yunjeongseo proteomiccharacterizationandbioinformaticinsightsintomuc18functioningastriccancer
AT jaeyoungkim proteomiccharacterizationandbioinformaticinsightsintomuc18functioningastriccancer