PMID- 37132100 OWN - NLM STAT- MEDLINE DCOM- 20230719 LR - 20230727 IS - 1474-9726 (Electronic) IS - 1474-9718 (Print) IS - 1474-9718 (Linking) VI - 22 IP - 7 DP - 2023 Jul TI - Generalized low levels of serum N-glycans associate with better health status. PG - e13855 LID - 10.1111/acel.13855 [doi] LID - e13855 AB - Caloric restriction (CR) can prolong life and ameliorate age-related diseases; thus, its molecular basis might provide new insights for finding biomarker and intervention for aging and age-related disease. Glycosylation is an important post-translational modification, which can timely reflect the changes of intracellular state. Serum N-glycosylation was found changed with aging in humans and mice. CR is widely accepted as an effective anti-aging intervention in mice and could affect mouse serum fucosylated N-glycans. However, the effect of CR on the level of global N-glycans remains unknown. In order to explore whether CR affect the level of global N-glycans, we performed a comprehensive serum glycome profiling in mice of 30% calorie restriction group and ad libitum group at 7 time points across 60 weeks by MALDI-TOF-MS. At each time point, the majority of glycans, including galactosylated and high mannose glycans, showed a consistent low level in CR group. Interestingly, O-acetylated sialoglycans presented an upward change different from other derived traits, which is mainly reflected in two biantennary alpha2,6-linked sialoglycans (H5N4Ge2Ac1, H5N4Ge2Ac2). Liver transcriptome analysis further revealed a decreased transcriptional level of genes involved in N-glycan biosynthesis while increased level of acetyl-CoA production. This finding is consistent with changes in serum N-glycans and O-acetylated sialic acids. Therefore, we provided one possible molecular basis for the beneficial effect of CR from N-glycosylation perspective. CI - (c) 2023 The Authors. Aging Cell published by Anatomical Society and John Wiley & Sons Ltd. FAU - Fan, Jiteng AU - Fan J AD - NHC Key Laboratory of Glycoconjugates Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China. FAU - Sha, Jichen AU - Sha J AD - NHC Key Laboratory of Glycoconjugates Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China. FAU - Chang, Shuwai AU - Chang S AD - NHC Key Laboratory of Glycoconjugates Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China. FAU - Zhao, Huijuan AU - Zhao H AD - NHC Key Laboratory of Glycoconjugates Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China. FAU - Niu, Xiaoyun AU - Niu X AD - NHC Key Laboratory of Glycoconjugates Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China. FAU - Gu, Yong AU - Gu Y AD - NHC Key Laboratory of Glycoconjugates Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China. FAU - Gu, Jianxin AU - Gu J AD - NHC Key Laboratory of Glycoconjugates Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China. FAU - Ren, Shifang AU - Ren S AUID- ORCID: 0000-0001-8931-9293 AD - NHC Key Laboratory of Glycoconjugates Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230502 PL - England TA - Aging Cell JT - Aging cell JID - 101130839 RN - 0 (Sialic Acids) RN - 0 (Biomarkers) RN - 0 (Polysaccharides) SB - IM MH - Humans MH - Mice MH - Animals MH - Glycosylation MH - Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization MH - *Sialic Acids MH - Biomarkers MH - *Polysaccharides PMC - PMC10352567 OTO - NOTNLM OT - N-glycans OT - O-acetylation OT - caloric restriction OT - liver OT - serum OT - transcriptome COIS- The authors declare no conflict of interest. EDAT- 2023/05/03 06:42 MHDA- 2023/07/19 06:42 PMCR- 2023/05/02 CRDT- 2023/05/03 02:33 PHST- 2023/04/05 00:00 [revised] PHST- 2022/12/06 00:00 [received] PHST- 2023/04/10 00:00 [accepted] PHST- 2023/07/19 06:42 [medline] PHST- 2023/05/03 06:42 [pubmed] PHST- 2023/05/03 02:33 [entrez] PHST- 2023/05/02 00:00 [pmc-release] AID - ACEL13855 [pii] AID - 10.1111/acel.13855 [doi] PST - ppublish SO - Aging Cell. 2023 Jul;22(7):e13855. doi: 10.1111/acel.13855. Epub 2023 May 2.