{"title":"Astrocytic LRP1 enables mitochondria transfer to neurons and mitigates brain ischemic stroke by suppressing ARF1 lactylation","authors":"Jian Zhou, Lifang Zhang, Jianhua Peng, Xianhui Zhang, Fan Zhang, Yuanyuan Wu, An Huang, Fengling Du, Yuyan Liao, Yijing He, Yuke Xie, Long Gu, Chenghao Kuang, Wei Ou, Maodi Xie, Tianqi Tu, Jinwei Pang, Dingkun Zhang, Kecheng Guo, Yue Feng, Yong Jiang","doi":"10.1016/j.cmet.2024.05.016","DOIUrl":"https://doi.org/10.1016/j.cmet.2024.05.016","url":null,"abstract":"<p>Low-density lipoprotein receptor-related protein-1 (LRP1) is an endocytic/signaling cell-surface receptor that regulates diverse cellular functions, including cell survival, differentiation, and proliferation. LRP1 has been previously implicated in the pathogenesis of neurodegenerative disorders, but there are inconsistencies in its functions. Therefore, whether and how LRP1 maintains brain homeostasis remains to be clarified. Here, we report that astrocytic LRP1 promotes astrocyte-to-neuron mitochondria transfer by reducing lactate production and ADP-ribosylation factor 1 (ARF1) lactylation. In astrocytes, LRP1 suppressed glucose uptake, glycolysis, and lactate production, leading to reduced lactylation of ARF1. Suppression of astrocytic LRP1 reduced mitochondria transfer into damaged neurons and worsened ischemia-reperfusion injury in a mouse model of ischemic stroke. Furthermore, we examined lactate levels in human patients with stroke. Cerebrospinal fluid (CSF) lactate was elevated in stroke patients and inversely correlated with astrocytic mitochondria. These findings reveal a protective role of LRP1 in brain ischemic stroke by enabling mitochondria-mediated astrocyte-neuron crosstalk.</p>","PeriodicalId":9840,"journal":{"name":"Cell metabolism","volume":"71 1","pages":""},"PeriodicalIF":29.0,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141430739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cell metabolismPub Date : 2024-06-19DOI: 10.1016/j.cmet.2024.05.017
Dimitrios Kapogiannis, Apostolos Manolopoulos, Roger Mullins, Konstantinos Avgerinos, Francheska Delgado-Peraza, Maja Mustapic, Carlos Nogueras-Ortiz, Pamela J. Yao, Krishna A. Pucha, Janet Brooks, Qinghua Chen, Shalaila S. Haas, Ruiyang Ge, Lisa M. Hartnell, Mark R. Cookson, Josephine M. Egan, Sophia Frangou, Mark P. Mattson
{"title":"Brain responses to intermittent fasting and the healthy living diet in older adults","authors":"Dimitrios Kapogiannis, Apostolos Manolopoulos, Roger Mullins, Konstantinos Avgerinos, Francheska Delgado-Peraza, Maja Mustapic, Carlos Nogueras-Ortiz, Pamela J. Yao, Krishna A. Pucha, Janet Brooks, Qinghua Chen, Shalaila S. Haas, Ruiyang Ge, Lisa M. Hartnell, Mark R. Cookson, Josephine M. Egan, Sophia Frangou, Mark P. Mattson","doi":"10.1016/j.cmet.2024.05.017","DOIUrl":"https://doi.org/10.1016/j.cmet.2024.05.017","url":null,"abstract":"<p>Diet may promote brain health in metabolically impaired older individuals. In an 8-week randomized clinical trial involving 40 cognitively intact older adults with insulin resistance, we examined the effects of 5:2 intermittent fasting and the healthy living diet on brain health. Although intermittent fasting induced greater weight loss, the two diets had comparable effects in improving insulin signaling biomarkers in neuron-derived extracellular vesicles, decreasing the brain-age-gap estimate (reflecting the pace of biological aging of the brain) on magnetic resonance imaging, reducing brain glucose on magnetic resonance spectroscopy, and improving blood biomarkers of carbohydrate and lipid metabolism, with minimal changes in cerebrospinal fluid biomarkers for Alzheimer’s disease. Intermittent fasting and healthy living improved executive function and memory, with intermittent fasting benefiting more certain cognitive measures. In exploratory analyses, sex, body mass index, and apolipoprotein E and <em>SLC16A7</em> genotypes modulated diet effects. The study provides a blueprint for assessing brain effects of dietary interventions and motivates further research on intermittent fasting and continuous diets for brain health optimization. For further information, please see <span>ClinicalTrials.gov</span><svg aria-label=\"Opens in new window\" focusable=\"false\" height=\"8px\" viewbox=\"0 0 8 8\" width=\"8px\"><path d=\"M1.12949 2.1072V1H7V6.85795H5.89111V2.90281L0.784057 8L0 7.21635L5.11902 2.1072H1.12949Z\"></path></svg> registration: NCT02460783.</p>","PeriodicalId":9840,"journal":{"name":"Cell metabolism","volume":"43 1","pages":""},"PeriodicalIF":29.0,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141425284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cell metabolismPub Date : 2024-06-19DOI: 10.1016/j.cmet.2024.05.015
Min Zhu, Yunguan Wang, Tianshi Lu, Jason Guo, Lin Li, Meng-Hsiung Hsieh, Purva Gopal, Yi Han, Naoto Fujiwara, Darren P. Wallace, Alan S.L. Yu, Xiangyi Fang, Crystal Ransom, Sara Verschleisser, David Hsiehchen, Yujin Hoshida, Amit G. Singal, Adam Yopp, Tao Wang, Hao Zhu
{"title":"PKD1 mutant clones within cirrhotic livers inhibit steatohepatitis without promoting cancer","authors":"Min Zhu, Yunguan Wang, Tianshi Lu, Jason Guo, Lin Li, Meng-Hsiung Hsieh, Purva Gopal, Yi Han, Naoto Fujiwara, Darren P. Wallace, Alan S.L. Yu, Xiangyi Fang, Crystal Ransom, Sara Verschleisser, David Hsiehchen, Yujin Hoshida, Amit G. Singal, Adam Yopp, Tao Wang, Hao Zhu","doi":"10.1016/j.cmet.2024.05.015","DOIUrl":"https://doi.org/10.1016/j.cmet.2024.05.015","url":null,"abstract":"<p>Somatic mutations in non-malignant tissues are selected for because they confer increased clonal fitness. However, it is uncertain whether these clones can benefit organ health. Here, ultra-deep targeted sequencing of 150 liver samples from 30 chronic liver disease patients revealed recurrent somatic mutations. <em>PKD1</em> mutations were observed in 30% of patients, whereas they were only detected in 1.3% of hepatocellular carcinomas (HCCs). To interrogate tumor suppressor functionality, we perturbed <em>PKD1</em> in two HCC cell lines and six <em>in vivo</em> models, in some cases showing that <em>PKD1</em> loss protected against HCC, but in most cases showing no impact. However, <em>Pkd1</em> haploinsufficiency accelerated regeneration after partial hepatectomy. We tested <em>Pkd1</em> in fatty liver disease, showing that <em>Pkd1</em> loss was protective against steatosis and glucose intolerance. Mechanistically, <em>Pkd1</em> loss selectively increased mTOR signaling without SREBP-1c activation. In summary, <em>PKD1</em> mutations exert adaptive functionality on the organ level without increasing transformation risk.</p>","PeriodicalId":9840,"journal":{"name":"Cell metabolism","volume":"43 1","pages":""},"PeriodicalIF":29.0,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141425368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Nicotinamide metabolism face-off between macrophages and fibroblasts manipulates the microenvironment in gastric cancer","authors":"Yu Jiang, Yawen Wang, Guofeng Chen, Fei Sun, Qijing Wu, Qiong Huang, Dongqiang Zeng, Wenjun Qiu, Jiao Wang, Zhiqi Yao, Bishan Liang, Shaowei Li, Jianhua Wu, Na Huang, Yuanyuan Wang, Jingsong Chen, Xiaohui Zhai, Li Huang, Beibei Xu, Masami Yamamoto, Min Shi","doi":"10.1016/j.cmet.2024.05.013","DOIUrl":"https://doi.org/10.1016/j.cmet.2024.05.013","url":null,"abstract":"<p>Immune checkpoint blockade has led to breakthroughs in the treatment of advanced gastric cancer. However, the prominent heterogeneity in gastric cancer, notably the heterogeneity of the tumor microenvironment, highlights the idea that the antitumor response is a reflection of multifactorial interactions. Through transcriptomic analysis and dynamic plasma sample analysis, we identified a metabolic “face-off” mechanism within the tumor microenvironment, as shown by the dual prognostic significance of nicotinamide metabolism. Specifically, macrophages and fibroblasts expressing the rate-limiting enzymes nicotinamide phosphoribosyltransferase and nicotinamide N-methyltransferase, respectively, regulate the nicotinamide/1-methylnicotinamide ratio and CD8<sup>+</sup> T cell function. Mechanistically, nicotinamide N-methyltransferase is transcriptionally activated by the NOTCH pathway transcription factor RBP-J and is further inhibited by macrophage-derived extracellular vesicles containing nicotinamide phosphoribosyltransferase via the SIRT1/NICD axis. Manipulating nicotinamide metabolism through autologous injection of extracellular vesicles restored CD8<sup>+</sup> T cell cytotoxicity and the anti-PD-1 response in gastric cancer.</p>","PeriodicalId":9840,"journal":{"name":"Cell metabolism","volume":"111 1","pages":""},"PeriodicalIF":29.0,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141334529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cell metabolismPub Date : 2024-06-17DOI: 10.1016/j.cmet.2024.05.011
Shin-ichi Inoue, Matthew J. Emmett, Hee-Woong Lim, Mohit Midha, Hannah J. Richter, Isaac J. Celwyn, Rashid Mehmood, Maria Chondronikola, Samuel Klein, Amy K. Hauck, Mitchell A. Lazar
{"title":"Short-term cold exposure induces persistent epigenomic memory in brown fat","authors":"Shin-ichi Inoue, Matthew J. Emmett, Hee-Woong Lim, Mohit Midha, Hannah J. Richter, Isaac J. Celwyn, Rashid Mehmood, Maria Chondronikola, Samuel Klein, Amy K. Hauck, Mitchell A. Lazar","doi":"10.1016/j.cmet.2024.05.011","DOIUrl":"https://doi.org/10.1016/j.cmet.2024.05.011","url":null,"abstract":"<p>Deficiency of the epigenome modulator histone deacetylase 3 (HDAC3) in brown adipose tissue (BAT) impairs the ability of mice to survive in near-freezing temperatures. Here, we report that short-term exposure to mild cold temperature (STEMCT: 15°C for 24 h) averted lethal hypothermia of mice lacking HDAC3 in BAT (HDAC3 BAT KO) exposed to 4°C. STEMCT restored the induction of the thermogenic coactivator PGC-1α along with UCP1 at 22°C, which is greatly impaired in HDAC3-deficient BAT, and deletion of either UCP1 or PGC-1α prevented the protective effect of STEMCT. Remarkably, this protection lasted for up to 7 days. Transcriptional activator C/EBPβ was induced by short-term cold exposure in mouse and human BAT and, uniquely, remained high for 7 days following STEMCT. Adeno-associated virus-mediated knockdown of BAT C/EBPβ in HDAC3 BAT KO mice erased the persistent memory of STEMCT, revealing the existence of a C/EBPβ-dependent and HDAC3-independent cold-adaptive epigenomic memory.</p>","PeriodicalId":9840,"journal":{"name":"Cell metabolism","volume":"17 1","pages":""},"PeriodicalIF":29.0,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141333804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Reactive oxygen species regulation by NCF1 governs ferroptosis susceptibility of Kupffer cells to MASH","authors":"Jing Zhang, Yu Wang, Meiyang Fan, Yanglong Guan, Wentao Zhang, Fumeng Huang, Zhengqiang Zhang, Xiaomeng Li, Bingyu Yuan, Wenbin Liu, Manman Geng, Xiaowei Li, Jing Xu, Congshan Jiang, Wenjuan Zhao, Feng Ye, Wenhua Zhu, Liesu Meng, Shemin Lu, Rikard Holmdahl","doi":"10.1016/j.cmet.2024.05.008","DOIUrl":"https://doi.org/10.1016/j.cmet.2024.05.008","url":null,"abstract":"<p>Impaired self-renewal of Kupffer cells (KCs) leads to inflammation in metabolic dysfunction-associated steatohepatitis (MASH). Here, we identify neutrophil cytosolic factor 1 (NCF1) as a critical regulator of iron homeostasis in KCs. NCF1 is upregulated in liver macrophages and dendritic cells in humans with metabolic dysfunction-associated steatotic liver disease and in MASH mice. Macrophage NCF1, but not dendritic cell NCF1, triggers KC iron overload, ferroptosis, and monocyte-derived macrophage infiltration, thus aggravating MASH progression. Mechanistically, elevated oxidized phospholipids induced by macrophage NCF1 promote Toll-like receptor (TLR4)-dependent hepatocyte hepcidin production, leading to increased KC iron deposition and subsequent KC ferroptosis. Importantly, the human low-functional polymorphic variant NCF1<sup>90H</sup> alleviates KC ferroptosis and MASH in mice. In conclusion, macrophage NCF1 impairs iron homeostasis in KCs by oxidizing phospholipids, triggering hepatocyte hepcidin release and KC ferroptosis in MASH, highlighting NCF1 as a therapeutic target for improving KC fate and limiting MASH progression.</p>","PeriodicalId":9840,"journal":{"name":"Cell metabolism","volume":"32 1","pages":""},"PeriodicalIF":29.0,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141287346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cell metabolismPub Date : 2024-06-04DOI: 10.1016/j.cmet.2024.05.009
John Orlowski
{"title":"Nuclear SMAD5 dances to a different tune in regulating insulin secretion","authors":"John Orlowski","doi":"10.1016/j.cmet.2024.05.009","DOIUrl":"https://doi.org/10.1016/j.cmet.2024.05.009","url":null,"abstract":"<p>In this issue of <em>Cell Metabolism</em>, Fang et al.<span><sup>1</sup></span> report a novel pH-sensitive cellular signaling mechanism involving the transcription factor SMAD5 that regulates the vesicular secretion of insulin from pancreatic β cells in response to dietary challenges. Dysregulation of this pathway may contribute to metabolic disorders such as type 2 diabetes mellitus.</p>","PeriodicalId":9840,"journal":{"name":"Cell metabolism","volume":"20 1","pages":""},"PeriodicalIF":29.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141246290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cell metabolismPub Date : 2024-06-04DOI: 10.1016/j.cmet.2024.05.007
Kostas A. Papavassiliou, Athanasios G. Papavassiliou
{"title":"Hungry for fat: Metabolic crosstalk with lipid-rich CAFs fuels pancreatic cancer","authors":"Kostas A. Papavassiliou, Athanasios G. Papavassiliou","doi":"10.1016/j.cmet.2024.05.007","DOIUrl":"https://doi.org/10.1016/j.cmet.2024.05.007","url":null,"abstract":"<p>Some cancers prefer to metabolize lipids for their growth and metastasis. In a recent <em>Cancer Cell</em> study, Niu et al. revealed that <em>SET domain containing 2, histone lysine methyltransferase</em> (<em>SETD2</em>)-deficient pancreatic cancer cells induce the differentiation of lipid-laden cancer-associated fibroblasts (CAFs), which, in turn, transport lipids to promote tumor growth.</p>","PeriodicalId":9840,"journal":{"name":"Cell metabolism","volume":"58 1","pages":""},"PeriodicalIF":29.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141246350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Dysfunctional circadian clock accelerates cancer metastasis by intestinal microbiota triggering accumulation of myeloid-derived suppressor cells","authors":"Jing-Lin Liu, Xu Xu, Youlutuziayi Rixiati, Chu-Yi Wang, Heng-Li Ni, Wen-Shu Chen, Hui-Min Gong, Zi-Long Zhang, Shi Li, Tong Shen, Jian-Ming Li","doi":"10.1016/j.cmet.2024.04.019","DOIUrl":"https://doi.org/10.1016/j.cmet.2024.04.019","url":null,"abstract":"<p>Circadian homeostasis in mammals is a key intrinsic mechanism for responding to the external environment. However, the interplay between circadian rhythms and the tumor microenvironment (TME) and its influence on metastasis are still unclear. Here, in patients with colorectal cancer (CRC), disturbances of circadian rhythm and the accumulation of monocytes and granulocytes were closely related to metastasis. Moreover, dysregulation of circadian rhythm promoted lung metastasis of CRC by inducing the accumulation of myeloid-derived suppressor cells (MDSCs) and dysfunctional CD8<sup>+</sup> T cells in the lungs of mice. Also, gut microbiota and its derived metabolite taurocholic acid (TCA) contributed to lung metastasis of CRC by triggering the accumulation of MDSCs in mice. Mechanistically, TCA promoted glycolysis of MDSCs epigenetically by enhancing mono-methylation of H3K4 of target genes and inhibited CHIP-mediated ubiquitination of PDL1. Our study links the biological clock with MDSCs in the TME through gut microbiota/metabolites in controlling the metastatic spread of CRC, uncovering a systemic mechanism for cancer metastasis.</p>","PeriodicalId":9840,"journal":{"name":"Cell metabolism","volume":"91 1","pages":""},"PeriodicalIF":29.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141246352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The browning and mobilization of subcutaneous white adipose tissue supports efficient skin repair","authors":"Junrong Cai, Yuping Quan, Shaowei Zhu, , Qian Zhang, Juzi Liu, Zhuokai Liang, Yunjun Liao, Wenqing Jiang, Yufei He, Ting Su, Feng Lu","doi":"10.1016/j.cmet.2024.05.005","DOIUrl":"https://doi.org/10.1016/j.cmet.2024.05.005","url":null,"abstract":"<p>Adipocytes in dermis are considered to be important participants in skin repair and regeneration, but the role of subcutaneous white adipose tissue (sWAT) in skin repair is poorly understood. Here, we revealed the dynamic changes of sWAT during wound healing process. Lineage-tracing mouse studies revealed that sWAT would enter into the large wound bed and participate in the formation of granulation tissue. Moreover, sWAT undergoes beiging after skin injury. Inhibition of sWAT beiging by genetically silencing PRDM16, a key regulator to beiging, hindered wound healing process. The transcriptomics results suggested that beige adipocytes in sWAT abundantly express neuregulin 4 (NRG4), which regulated macrophage polarization and the function of myofibroblasts. In diabetic wounds, the beiging of sWAT was significantly suppressed. Thus, adipocytes from sWAT regulate multiple aspects of repair and may be therapeutic for inflammatory diseases and defective wound healing associated with aging and diabetes.</p>","PeriodicalId":9840,"journal":{"name":"Cell metabolism","volume":"100 1","pages":""},"PeriodicalIF":29.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141246297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
