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Article: Folate enzyme MTHFD2 links one-carbon metabolism to unfolded protein response in glioblastoma

TitleFolate enzyme MTHFD2 links one-carbon metabolism to unfolded protein response in glioblastoma
Authors
KeywordsER stress
Metabolic reprogramming
Metabolomics
Non-metabolic
RNA interference
Issue Date2022
Citation
Cancer Letters, 2022, v. 549, article no. 215903 How to Cite?
AbstractThe mitochondrial folate enzyme methylenetetrahydrofolate dehydrogenase/cyclohydrolase (MTHFD2) has shown oncogenic roles in various cancers and may have non-metabolic functions. This study investigated the role of MTHFD2 in glioblastoma pathogenesis. We find that MTHFD2 expression is enriched in gliomas by analysing public databases and clinical specimens. RNA interference (RNAi) and inhibitor of MTHFD2 hamper the proliferation of glioblastoma and induce apoptosis in cell lines, glioma stem-like cells (GSCs) and patient-derived xenografts (PDX). Metabolomic analyses show that MTHFD2 depletion suppresses the central carbon metabolic pathways, including glycolysis, the pentose phosphate pathway (PPP), and the tricarboxylic acid (TCA) cycle. GSEA reveals a novel non-metabolic function of MTHFD2 in association with the unfolded protein response (UPR). MTHFD2 depletion activates the PERK/eIF2α axis which contributes to translation inhibition and apoptosis; these effects are attenuated by a PERK inhibitor. Mechanistically, MTHFD2 may be linked to UPR via the post-transcriptionally regulation of chaperone protein GRP78. In conclusion, MTHFD2 could be a promising therapeutic target for glioblastoma. Besides its canonical role, MTHFD2 may contribute to glioblastoma pathogenesis via UPR, highlighting a newly identified functional link between one-carbon metabolism and cell stress response.
Persistent Identifierhttp://hdl.handle.net/10722/330853
ISSN
2023 Impact Factor: 9.1
2023 SCImago Journal Rankings: 2.595
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhu, Zhiyuan-
dc.contributor.authorKiang, Karrie Mei Yee-
dc.contributor.authorLi, Ning-
dc.contributor.authorLiu, Jiaxin-
dc.contributor.authorZhang, Pingde-
dc.contributor.authorJin, Lei-
dc.contributor.authorHe, Xiaozheng-
dc.contributor.authorZhang, Shizhong-
dc.contributor.authorLeung, Gilberto Ka Kit-
dc.date.accessioned2023-09-05T12:15:15Z-
dc.date.available2023-09-05T12:15:15Z-
dc.date.issued2022-
dc.identifier.citationCancer Letters, 2022, v. 549, article no. 215903-
dc.identifier.issn0304-3835-
dc.identifier.urihttp://hdl.handle.net/10722/330853-
dc.description.abstractThe mitochondrial folate enzyme methylenetetrahydrofolate dehydrogenase/cyclohydrolase (MTHFD2) has shown oncogenic roles in various cancers and may have non-metabolic functions. This study investigated the role of MTHFD2 in glioblastoma pathogenesis. We find that MTHFD2 expression is enriched in gliomas by analysing public databases and clinical specimens. RNA interference (RNAi) and inhibitor of MTHFD2 hamper the proliferation of glioblastoma and induce apoptosis in cell lines, glioma stem-like cells (GSCs) and patient-derived xenografts (PDX). Metabolomic analyses show that MTHFD2 depletion suppresses the central carbon metabolic pathways, including glycolysis, the pentose phosphate pathway (PPP), and the tricarboxylic acid (TCA) cycle. GSEA reveals a novel non-metabolic function of MTHFD2 in association with the unfolded protein response (UPR). MTHFD2 depletion activates the PERK/eIF2α axis which contributes to translation inhibition and apoptosis; these effects are attenuated by a PERK inhibitor. Mechanistically, MTHFD2 may be linked to UPR via the post-transcriptionally regulation of chaperone protein GRP78. In conclusion, MTHFD2 could be a promising therapeutic target for glioblastoma. Besides its canonical role, MTHFD2 may contribute to glioblastoma pathogenesis via UPR, highlighting a newly identified functional link between one-carbon metabolism and cell stress response.-
dc.languageeng-
dc.relation.ispartofCancer Letters-
dc.subjectER stress-
dc.subjectMetabolic reprogramming-
dc.subjectMetabolomics-
dc.subjectNon-metabolic-
dc.subjectRNA interference-
dc.titleFolate enzyme MTHFD2 links one-carbon metabolism to unfolded protein response in glioblastoma-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.canlet.2022.215903-
dc.identifier.pmid36089117-
dc.identifier.scopuseid_2-s2.0-85138144897-
dc.identifier.hkuros336787-
dc.identifier.volume549-
dc.identifier.spagearticle no. 215903-
dc.identifier.epagearticle no. 215903-
dc.identifier.eissn1872-7980-
dc.identifier.isiWOS:000862470000002-

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