Vida Farrokhi, Reza Afrisham, Masoud Soleimani, Mohammad Ahmadvand, Seyed Hadi Mousavi, Zahra Kashanikhatib, Somayeh Owchi, Fatemeh Mohammadali, Shaban Alizadeh
{"title":"The Effect of Circulating Exosomes Obtained from Young and Old Individuals on the Aging Related hTERT and P16 Expression in Hematopoietic Stem Cells","authors":"Vida Farrokhi, Reza Afrisham, Masoud Soleimani, Mohammad Ahmadvand, Seyed Hadi Mousavi, Zahra Kashanikhatib, Somayeh Owchi, Fatemeh Mohammadali, Shaban Alizadeh","doi":"10.2174/0122103155285692240301052306","DOIUrl":"https://doi.org/10.2174/0122103155285692240301052306","url":null,"abstract":"\u0000\u0000Functional reduction of telomeres can induce DNA damage response\u0000through cell cycle checkpoints and contribute to the senescence of stem cells. The effect of exosomes\u0000on the aging and rejuvenation of hematopoietic stem cells (HSCs) is not well known. Therefore, the\u0000present study is designed to examine the impact of plasma exosomes derived from young and old\u0000individuals on hTERT and P16 expression involved in the cellular aging process.\u0000\u0000\u0000\u0000Functional reduction of telomeres can induce DNA damage response through cell cycle checkpoints and contribute to the senescence of stem cells. The effect of exosomes on the aging and rejuvenating in hematopoietic stem cells (HSCs) is not well known. Therefore, the present study designed to examine the impact of plasma exosomes derived from young and old individuals on hTERT and P16 expression involved in cellular aging process.\u0000\u0000\u0000\u0000Exosomes isolated from four young (Y-Exo) and four old (O-Exo) men were evaluated for\u0000CD63 protein expression, morphology, size and zeta potential. HSCs were treated with exosomes,\u0000and then, the cell viability and the mRNA expression (hTERT and P16) were evaluated using MTT\u0000and qRT-PCR methods, respectively. To measure the hTERT protein level, a western blot technique\u0000was performed.\u0000\u0000\u0000\u0000The gene expression of hTERT was significantly decreased in HSCs treated with 5 μg/ml\u0000(O5-Exo) and 10 μg/ml (O10-Exo) doses of exosomes obtained from elderly individuals compared to\u0000the cells treated with young exosomes and the untreated HSCs (p < 0.05). In addition, there was a\u0000profound elevation of hTERT protein in the HSCs treated with both doses of young exosomes in\u0000comparison with the cells treated with both doses of old exosomes (p < 0.05). Moreover, P16 expression\u0000was markedly upregulated in the O5-Exo and O10-Exo groups compared to the untreated group\u0000(p < 0.05).\u0000\u0000\u0000\u0000Our findings reinforce the concept that depending on the age of individuals, circulating\u0000exosomes may acquire properties that affect the pathways involved in the aging process in HSCs.\u0000","PeriodicalId":515404,"journal":{"name":"The Natural Products Journal","volume":"15 24","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140241471","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}
Tao Wang, Xiangfeng Kong, Xiaomeng Tang, Mingxia Xie, Xia Zhang, Jianjun Zhao, Xiaojuan Gao, Hanqing Wang
{"title":"The Botany, Phytochemistry, Pharmacology, Toxicology, and Quality\u0000Control of Epimedium: A Review","authors":"Tao Wang, Xiangfeng Kong, Xiaomeng Tang, Mingxia Xie, Xia Zhang, Jianjun Zhao, Xiaojuan Gao, Hanqing Wang","doi":"10.2174/0122103155284336240227092937","DOIUrl":"https://doi.org/10.2174/0122103155284336240227092937","url":null,"abstract":"\u0000\u0000Epimedium has long been used as an ethnic drug in Asia and Europe for its high medicinal\u0000value and health benefits, which is often used for anti-tumor, anti-osteoporosis, sexual dysfunction,\u0000and other related diseases. In this research, Epimedium isreviewed in the botany, phytochemistry,\u0000pharmacology, toxicology, processing, and quality control to make it better for clinical services.\u0000More than 106 compounds, including flavonoids, polysaccharides, alkaloids, lignans, and others,\u0000were isolated from Epimedium. Based on multiple chemically active components, Epimedium has a\u0000wide range of pharmacological action. Several studies have demonstrated Epimedium has multiple\u0000biological activities, including neuroprotective effects, anti-inflammatory, anti-aging, and antioxidant\u0000effects, anti-osteoporosis, anti-cancer, anti-tumor, anti-diabetes, anti-influenza, effects on sexual\u0000dysfunction, etc. Recently, the toxicity of Epimedium has been brought into focus, and its hepatotoxicity\u0000has been confirmed through animal experiments. Moreover, it is particularly important to control\u0000its quality. To date, great progress has been made in the study of Epimedium. This study systematically\u0000reviews the achievements of research on Epimedium. Moreover, the shortcomings of the\u0000current research on Epimedium were pointed out, and some suggestions were given.\u0000","PeriodicalId":515404,"journal":{"name":"The Natural Products Journal","volume":"137 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140251508","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}