O-glycans truncation modulates gastric cancer cell signaling and transcription leading to a more aggressive phenotype

Detalhes bibliográficos
Autor(a) principal: Freitas, D
Data de Publicação: 2019
Outros Autores: Campos, D, Gomes, J, Pinto, F, Macedo, JA, Matos, R, Mereiter, S, Pinto, MT, Polónia, A, Gärtner, F, Magalhães, A, Reis, CA
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://hdl.handle.net/10216/136276
Resumo: Background: Changes in glycosylation are known to play critical roles during gastric carcinogenesis. Expression of truncated O-glycans, such as the Sialyl-Tn (STn) antigen, is a common feature shared by many cancers and is associated with cancer aggressiveness and poor-prognosis. Methods: Glycoengineered cell lines were used to evaluate the impact of truncated O-glycans in cancer cell biology using in vitro functional assays, transcriptomic analysis and in vivo models. Tumor patients ‘samples and datasets were used for clinical translational significance evaluation. Findings: In the present study, we demonstrated that gastric cancer cells expressing truncated O-glycans display major phenotypic alterations associated with higher cell motility and cell invasion. Noteworthy, the glycoengineered cancer cells overexpressing STn resulted in tumor xenografts with less cohesive features which had a critical impact on mice survival. Furthermore, truncation of O-glycans induced activation of EGFR and ErbB2 receptors and a transcriptomic signature switch of gastric cancer cells. The disclosed top activated genes were further validated in gastric tumors, revealing that SRPX2 and RUNX1 are concomitantly overexpressed in gastric carcinomas and its expression is associated with patients’ poor-survival, highlighting their prognosis potential in clinical practice. Interpretation: This study discloses novel molecular links between O-glycans truncation frequently observed in cancer and key cellular regulators with major impact in tumor progression and patients’ clinical outcome.
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spelling O-glycans truncation modulates gastric cancer cell signaling and transcription leading to a more aggressive phenotypeGastric cancerPoor-survivalRUNX1Sialyl-TnSRPX2Background: Changes in glycosylation are known to play critical roles during gastric carcinogenesis. Expression of truncated O-glycans, such as the Sialyl-Tn (STn) antigen, is a common feature shared by many cancers and is associated with cancer aggressiveness and poor-prognosis. Methods: Glycoengineered cell lines were used to evaluate the impact of truncated O-glycans in cancer cell biology using in vitro functional assays, transcriptomic analysis and in vivo models. Tumor patients ‘samples and datasets were used for clinical translational significance evaluation. Findings: In the present study, we demonstrated that gastric cancer cells expressing truncated O-glycans display major phenotypic alterations associated with higher cell motility and cell invasion. Noteworthy, the glycoengineered cancer cells overexpressing STn resulted in tumor xenografts with less cohesive features which had a critical impact on mice survival. Furthermore, truncation of O-glycans induced activation of EGFR and ErbB2 receptors and a transcriptomic signature switch of gastric cancer cells. The disclosed top activated genes were further validated in gastric tumors, revealing that SRPX2 and RUNX1 are concomitantly overexpressed in gastric carcinomas and its expression is associated with patients’ poor-survival, highlighting their prognosis potential in clinical practice. Interpretation: This study discloses novel molecular links between O-glycans truncation frequently observed in cancer and key cellular regulators with major impact in tumor progression and patients’ clinical outcome.Elsevier20192019-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10216/136276eng2352-396410.1016/j.ebiom.2019.01.017Freitas, DCampos, DGomes, JPinto, FMacedo, JAMatos, RMereiter, SPinto, MTPolónia, AGärtner, FMagalhães, AReis, CAinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-29T15:35:32Zoai:repositorio-aberto.up.pt:10216/136276Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T00:27:23.690406Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv O-glycans truncation modulates gastric cancer cell signaling and transcription leading to a more aggressive phenotype
title O-glycans truncation modulates gastric cancer cell signaling and transcription leading to a more aggressive phenotype
spellingShingle O-glycans truncation modulates gastric cancer cell signaling and transcription leading to a more aggressive phenotype
Freitas, D
Gastric cancer
Poor-survival
RUNX1
Sialyl-Tn
SRPX2
title_short O-glycans truncation modulates gastric cancer cell signaling and transcription leading to a more aggressive phenotype
title_full O-glycans truncation modulates gastric cancer cell signaling and transcription leading to a more aggressive phenotype
title_fullStr O-glycans truncation modulates gastric cancer cell signaling and transcription leading to a more aggressive phenotype
title_full_unstemmed O-glycans truncation modulates gastric cancer cell signaling and transcription leading to a more aggressive phenotype
title_sort O-glycans truncation modulates gastric cancer cell signaling and transcription leading to a more aggressive phenotype
author Freitas, D
author_facet Freitas, D
Campos, D
Gomes, J
Pinto, F
Macedo, JA
Matos, R
Mereiter, S
Pinto, MT
Polónia, A
Gärtner, F
Magalhães, A
Reis, CA
author_role author
author2 Campos, D
Gomes, J
Pinto, F
Macedo, JA
Matos, R
Mereiter, S
Pinto, MT
Polónia, A
Gärtner, F
Magalhães, A
Reis, CA
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Freitas, D
Campos, D
Gomes, J
Pinto, F
Macedo, JA
Matos, R
Mereiter, S
Pinto, MT
Polónia, A
Gärtner, F
Magalhães, A
Reis, CA
dc.subject.por.fl_str_mv Gastric cancer
Poor-survival
RUNX1
Sialyl-Tn
SRPX2
topic Gastric cancer
Poor-survival
RUNX1
Sialyl-Tn
SRPX2
description Background: Changes in glycosylation are known to play critical roles during gastric carcinogenesis. Expression of truncated O-glycans, such as the Sialyl-Tn (STn) antigen, is a common feature shared by many cancers and is associated with cancer aggressiveness and poor-prognosis. Methods: Glycoengineered cell lines were used to evaluate the impact of truncated O-glycans in cancer cell biology using in vitro functional assays, transcriptomic analysis and in vivo models. Tumor patients ‘samples and datasets were used for clinical translational significance evaluation. Findings: In the present study, we demonstrated that gastric cancer cells expressing truncated O-glycans display major phenotypic alterations associated with higher cell motility and cell invasion. Noteworthy, the glycoengineered cancer cells overexpressing STn resulted in tumor xenografts with less cohesive features which had a critical impact on mice survival. Furthermore, truncation of O-glycans induced activation of EGFR and ErbB2 receptors and a transcriptomic signature switch of gastric cancer cells. The disclosed top activated genes were further validated in gastric tumors, revealing that SRPX2 and RUNX1 are concomitantly overexpressed in gastric carcinomas and its expression is associated with patients’ poor-survival, highlighting their prognosis potential in clinical practice. Interpretation: This study discloses novel molecular links between O-glycans truncation frequently observed in cancer and key cellular regulators with major impact in tumor progression and patients’ clinical outcome.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://hdl.handle.net/10216/136276
url https://hdl.handle.net/10216/136276
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2352-3964
10.1016/j.ebiom.2019.01.017
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dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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