Defne Engur , Serap Cilaker Micili , Sila Soy , Gökcen Bilici , Kemal Ugur Tufekci , Cagla Kiser , İlkcan Ercan , Abdullah Kumral , Sermin Genc
{"title":"补充氧气可通过 SIRT 信号改变发育中小鼠大脑中的五糖磷酸途径","authors":"Defne Engur , Serap Cilaker Micili , Sila Soy , Gökcen Bilici , Kemal Ugur Tufekci , Cagla Kiser , İlkcan Ercan , Abdullah Kumral , Sermin Genc","doi":"10.1016/j.neuint.2024.105886","DOIUrl":null,"url":null,"abstract":"<div><div>Oxygen support plays a critical role in the management of preterm infants in neonatal intensive care units. On the other hand, the possible effects of oxygen supplementation on cellular functions, specifically glucose metabolism, have been less understood.</div></div><div><h3>Purpose</h3><div>of the study is to investigate whether supplemental oxygen alters glucose metabolism and pentose phosphate pathway (PPP) activity in the brain tissue and its relevance with silent information regulator proteins (SIRT) pathway. For this purpose, newborn C57BL/6 pups were exposed to 90% oxygen from birth until postnatal day 7 (PN7) and metabolites of glysolysis and PPP were investigated through metabolomics analysis. SIRT1, glucose-6-phosphate dehydrogenase (G6PD) and transaldolase (TALDO) proteins were examined immunohistochemically and molecularly in the prefrontal and hippocampus regions of the brain. Later on, SIRT1 inhibition was carried out.</div><div>Our results indicate that supplemental oxygen causes an increase in PPP metabolites as well as activation of G6PD enzyme in the brain tissue, which is reversed by SIRT1 inhibition. Our study underlines a connection between supplemental oxygen, glucose metabolism, PPP pathway and the SIRT signaling. Understanding these intricate relationships not only deepens our knowledge of cellular physiology but also holds promise for therapeutic interventions for creating neuroprotective strategies in preterm brain.</div></div>","PeriodicalId":398,"journal":{"name":"Neurochemistry international","volume":"180 ","pages":"Article 105886"},"PeriodicalIF":4.4000,"publicationDate":"2024-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Supplemental oxygen alters the pentose phosphate pathway in the developing mouse brain through SIRT signaling\",\"authors\":\"Defne Engur , Serap Cilaker Micili , Sila Soy , Gökcen Bilici , Kemal Ugur Tufekci , Cagla Kiser , İlkcan Ercan , Abdullah Kumral , Sermin Genc\",\"doi\":\"10.1016/j.neuint.2024.105886\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Oxygen support plays a critical role in the management of preterm infants in neonatal intensive care units. On the other hand, the possible effects of oxygen supplementation on cellular functions, specifically glucose metabolism, have been less understood.</div></div><div><h3>Purpose</h3><div>of the study is to investigate whether supplemental oxygen alters glucose metabolism and pentose phosphate pathway (PPP) activity in the brain tissue and its relevance with silent information regulator proteins (SIRT) pathway. For this purpose, newborn C57BL/6 pups were exposed to 90% oxygen from birth until postnatal day 7 (PN7) and metabolites of glysolysis and PPP were investigated through metabolomics analysis. SIRT1, glucose-6-phosphate dehydrogenase (G6PD) and transaldolase (TALDO) proteins were examined immunohistochemically and molecularly in the prefrontal and hippocampus regions of the brain. Later on, SIRT1 inhibition was carried out.</div><div>Our results indicate that supplemental oxygen causes an increase in PPP metabolites as well as activation of G6PD enzyme in the brain tissue, which is reversed by SIRT1 inhibition. Our study underlines a connection between supplemental oxygen, glucose metabolism, PPP pathway and the SIRT signaling. Understanding these intricate relationships not only deepens our knowledge of cellular physiology but also holds promise for therapeutic interventions for creating neuroprotective strategies in preterm brain.</div></div>\",\"PeriodicalId\":398,\"journal\":{\"name\":\"Neurochemistry international\",\"volume\":\"180 \",\"pages\":\"Article 105886\"},\"PeriodicalIF\":4.4000,\"publicationDate\":\"2024-10-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Neurochemistry international\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0197018624002134\",\"RegionNum\":3,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"BIOCHEMISTRY & MOLECULAR BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Neurochemistry international","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0197018624002134","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
Supplemental oxygen alters the pentose phosphate pathway in the developing mouse brain through SIRT signaling
Oxygen support plays a critical role in the management of preterm infants in neonatal intensive care units. On the other hand, the possible effects of oxygen supplementation on cellular functions, specifically glucose metabolism, have been less understood.
Purpose
of the study is to investigate whether supplemental oxygen alters glucose metabolism and pentose phosphate pathway (PPP) activity in the brain tissue and its relevance with silent information regulator proteins (SIRT) pathway. For this purpose, newborn C57BL/6 pups were exposed to 90% oxygen from birth until postnatal day 7 (PN7) and metabolites of glysolysis and PPP were investigated through metabolomics analysis. SIRT1, glucose-6-phosphate dehydrogenase (G6PD) and transaldolase (TALDO) proteins were examined immunohistochemically and molecularly in the prefrontal and hippocampus regions of the brain. Later on, SIRT1 inhibition was carried out.
Our results indicate that supplemental oxygen causes an increase in PPP metabolites as well as activation of G6PD enzyme in the brain tissue, which is reversed by SIRT1 inhibition. Our study underlines a connection between supplemental oxygen, glucose metabolism, PPP pathway and the SIRT signaling. Understanding these intricate relationships not only deepens our knowledge of cellular physiology but also holds promise for therapeutic interventions for creating neuroprotective strategies in preterm brain.
期刊介绍:
Neurochemistry International is devoted to the rapid publication of outstanding original articles and timely reviews in neurochemistry. Manuscripts on a broad range of topics will be considered, including molecular and cellular neurochemistry, neuropharmacology and genetic aspects of CNS function, neuroimmunology, metabolism as well as the neurochemistry of neurological and psychiatric disorders of the CNS.