Plasma metabolomics identifies S-adenosylmethionine as a biomarker and potential therapeutic target for vascular aging in older adult males

被引：2

作者：

Gu, Zhenghui ^{[1
,2
,3
]}

Wang, Yujia ^{[1
,2
,3
]}

Fang, Zhiyi ^{[4
]}

Wang, Tianhu ^{[1
,2
,3
]}

Gao, Shan ^{[1
,2
,3
]}

Yang, Qian ^{[1
,2
,3
]}

Zhang, Yingjie ^{[1
,2
,3
]}

Wang, Yabin ^{[1
,2
,3
]}

Wang, Linghuan ^{[4
]}

Fan, Li ^{[1
,2
,3
]}

Cao, Feng ^{[1
,2
,3
]}

机构：

[1] Chinese Peoples Liberat Army Gen Hosp, Chinese PLA Med Sch, Beijing 100853, Peoples R China

[2] Chinese Peoples Liberat Army Gen Hosp, Med Ctr 2, Dept Cardiol, 28 Fuxing Rd, Beijing 100853, Peoples R China

[3] Chinese Peoples Liberat Army Gen Hosp, Natl Clin Res Ctr Geriatr Dis, 28 Fuxing Rd, Beijing 100853, Peoples R China

[4] Nankai Univ, Sch Med, Tianjin 300071, Peoples R China

来源：

JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS | 2024年 / 243卷

基金：

中国国家自然科学基金;

关键词：

Brachial -ankle pulse wave velocity; Metabolomics; Orthogonal partial least squares; Vascular aging; S-Adenosylmethionine; ARTERIAL STIFFNESS; CARDIOVASCULAR-DISEASE; HEART-RATE; HOMOCYSTEINE; RISK; AGE; DYSFUNCTION; MECHANISMS; METHIONINE; MORTALITY;

D O I：

10.1016/j.jpba.2024.116097

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Brachial -ankle pulse wave velocity (baPWV) is a noninvasive index of vascular aging. However, the metabolic profile underlying vascular aging has not yet been fully elucidated. The current study aimed to identify circulating markers of vascular aging as assessed by baPWV and to elucidate its mechanism from a metabolomic perspective in older adults. A total of 60 and 61 Chinese male participants aged >= 80 years were recruited to the metabolome and validation cohorts, respectively. The baPWV of participants was measured using an automatic waveform analyzer. Plasma metabolic profile was investigated using ultra -performance liquid chromatography coupled with triple quadrupole linear ion trap tandem mass spectrometry. Orthogonal partial least squares (OPLS) regression modeling established the association between metabolic profile and baPWV to determine important metabolites predictive of vascular aging. Additionally, an enzyme -linked immunosorbent assay was employed to validate the metabolites in plasma and culture media of vascular smooth muscle cells in vitro . OPLS modeling identified 14 and 22 metabolites inversely and positively associated with baPWV, respectively. These 36 biomarkers were significantly enriched in seven metabolite sets, especially in cysteine and methionine metabolism ( p <0.05). Notably, among metabolites involved in cysteine and methionine metabolism, S-adenosylmethionine (SAM) level was inversely related to baPWV, with a significant correlation coefficient in the OPLS model ( p <0.05). Furthermore, the relationship between SAM and vascular aging was reconfirmed in an independent cohort and at the cellular level in vitro . SAM was independently associated with baPWV after adjustments for clinical covariates ( beta = -0.448, p <0.001) in the validation cohort. In summary , plasma metabolomics identified an inverse correlation between SAM and baPWV in older males. SAM has the potential to be a novel biomarker and therapeutic target for vascular aging.

引用

页数：8