Life medicinePub Date : 2024-02-08DOI: 10.1093/lifemedi/lnae008
Xudong Yao, Xiaojun Xia, David C Hay, Mike Shipston, H. Ouyang
{"title":"Tuning mitochondrial dynamics for aging intervention","authors":"Xudong Yao, Xiaojun Xia, David C Hay, Mike Shipston, H. Ouyang","doi":"10.1093/lifemedi/lnae008","DOIUrl":"https://doi.org/10.1093/lifemedi/lnae008","url":null,"abstract":"","PeriodicalId":74073,"journal":{"name":"Life medicine","volume":"5 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139851524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Life medicinePub Date : 2024-02-08DOI: 10.1093/lifemedi/lnae008
Xudong Yao, Xiaojun Xia, David C Hay, Mike Shipston, H. Ouyang
{"title":"Tuning mitochondrial dynamics for aging intervention","authors":"Xudong Yao, Xiaojun Xia, David C Hay, Mike Shipston, H. Ouyang","doi":"10.1093/lifemedi/lnae008","DOIUrl":"https://doi.org/10.1093/lifemedi/lnae008","url":null,"abstract":"","PeriodicalId":74073,"journal":{"name":"Life medicine","volume":" 25","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139791645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A biomarker framework for liver aging: the Aging Biomarker Consortium consensus statement","authors":"Mengmeng Jiang, Zhuozhao Zheng, Xuan Wang, Yanhao Chen, Jing Qu, Qiurong Ding, Weiqi Zhang, You-Shuo Liu, Jichun Yang, Weiqing Tang, Yunlong Hou, Jinhan He, Lin Wang, Pengyu Huang, Lin-Chen Li, Zhiying He, Qiang Gao, Qian Lu, Lai Wei, Yan-Jiang Wang, Zhenyu Ju, Jian-Gao Fan, Xiong-zhong Ruan, Youfei Guan, Guanghui Liu, Gang Pei, Jian Li, Yunfang Wang","doi":"10.1093/lifemedi/lnae004","DOIUrl":"https://doi.org/10.1093/lifemedi/lnae004","url":null,"abstract":"\u0000 In human aging, liver aging per se increases susceptibility to liver diseases but also increases vulnerability of other organs given its central role in regulating metabolism. Total liver function tends to be well maintained in the healthy elderly, so liver aging generally difficult to identify early. In response to this critical challenge, the Aging Biomarker Consortium (ABC) of China has formulated an expert consensus on biomarkers of liver aging by synthesizing the latest scientific literature, comprising insights from both scientists and clinicians. This consensus provides a comprehensive assessment of biomarkers associated with liver aging and presents a systematic framework to characterize these into three dimensions: functional, structural, and humoral. For the functional domain, we highlight biomarkers associated with cholesterol metabolism and liver-related coagulation function. For the structural domain, we note that hepatic steatosis and liver blood flow can serve as measurable biomarkers for liver aging. Finally, in the humoral domain, we pinpoint hepatokines and enzymatic alterations worthy of attention. The aim of this expert consensus is to establish a foundation for assessing the extent of liver aging and identify early signs of liver aging-related diseases, thereby improving liver health and the healthy life expectancy of the elderly population.","PeriodicalId":74073,"journal":{"name":"Life medicine","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140484030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Life medicinePub Date : 2023-12-08DOI: 10.1093/lifemedi/lnad050
Xiaoqian Liu, Haifeng Jiao, Baohu Zhang, Sheng Zhang, K. Yan, J. Qu, Weiqi Zhang, Li Yu, Guanghui Liu
{"title":"Migrasomes trigger innate immune activation and mediate transmission of senescence signals across human cells","authors":"Xiaoqian Liu, Haifeng Jiao, Baohu Zhang, Sheng Zhang, K. Yan, J. Qu, Weiqi Zhang, Li Yu, Guanghui Liu","doi":"10.1093/lifemedi/lnad050","DOIUrl":"https://doi.org/10.1093/lifemedi/lnad050","url":null,"abstract":"\u0000 Aging is a complex and heterogeneous process, raising important questions about how aging is differently impacted by underlying genetics and external factors. Recently, migrasomes, newly discovered organelles, have been discovered to play important roles in various physiological and pathological processes by facilitating cell-to-cell communication. Thus far, their involvement in cellular senescence and aging remains largely unexplored. In this study, we aimed to investigate how migrasomes impacts on cellular aging by leveraging multiple cellular senescence models, including replicatively senescent (RS), pathologically senescent and stress-induced senescent human mesenchymal stem cells (hMSCs), as well as RS human primary fibroblasts. In all cellular aging models, we detected an enhanced formation of migrasomes. Notably, migrasomes in senescent cells exhibited an accumulation of numerous aging hallmarks, such as dysfunctional mitochondria, endogenous retroviruses, and senescence-associated pro-inflammatory cytokines. Furthermore, we discovered that migrasomes derived from senescent cells can be taken up by young cells, thereby transferring aging signals and subsequently causing premature senescence phenotypes in recipient cells. Mechanistically, we found that treatment with migrasomes derived from senescent cells activated the innate immune response. Thus, our study sheds light on a pivotal role of migrasomes in mediating the contagiousness of aging.","PeriodicalId":74073,"journal":{"name":"Life medicine","volume":"33 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138589115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}