{"title":"Molecular architecture of the actin cytoskeleton: From single cells to whole organisms using cryo-electron tomography","authors":"Jonathan Schneider , Marion Jasnin","doi":"10.1016/j.ceb.2024.102356","DOIUrl":"https://doi.org/10.1016/j.ceb.2024.102356","url":null,"abstract":"<div><p>Cryo-electron tomography (cryo-ET) has begun to provide intricate views of cellular architecture at unprecedented resolutions. Considerable efforts are being made to further optimize and automate the cryo-ET workflow, from sample preparation to data acquisition and analysis, to enable visual proteomics inside of cells. Here, we will discuss the latest advances in cryo-ET that go hand in hand with their application to the actin cytoskeleton. The development of deep learning tools for automated annotation of tomographic reconstructions and the serial lift-out sample preparation procedure will soon make it possible to perform high-resolution structural biology in a whole new range of samples, from multicellular organisms to organoids and tissues.</p></div>","PeriodicalId":50608,"journal":{"name":"Current Opinion in Cell Biology","volume":"88 ","pages":"Article 102356"},"PeriodicalIF":7.5,"publicationDate":"2024-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0955067424000358/pdfft?md5=313c511bad4e69c6703dda0b6678c7a2&pid=1-s2.0-S0955067424000358-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140545819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The multidimensional roles of intermediate filaments - bridging genetic diversity with form, functions, and targets","authors":"C. Patrick Lusk, John E. Eriksson","doi":"10.1016/j.ceb.2024.102354","DOIUrl":"https://doi.org/10.1016/j.ceb.2024.102354","url":null,"abstract":"","PeriodicalId":50608,"journal":{"name":"Current Opinion in Cell Biology","volume":"88 ","pages":"Article 102354"},"PeriodicalIF":7.5,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140539233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Editorial overview: Navigating the landscapes of mechanobiology and cell–cell interactions","authors":"Staffan Strömblad, Yasuyuki Fujita","doi":"10.1016/j.ceb.2024.102353","DOIUrl":"https://doi.org/10.1016/j.ceb.2024.102353","url":null,"abstract":"","PeriodicalId":50608,"journal":{"name":"Current Opinion in Cell Biology","volume":"88 ","pages":"Article 102353"},"PeriodicalIF":7.5,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140343888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Machines, mechanics and mechanisms of cells and tissues","authors":"Anne Straube, Kandice Tanner","doi":"10.1016/j.ceb.2024.102346","DOIUrl":"https://doi.org/10.1016/j.ceb.2024.102346","url":null,"abstract":"","PeriodicalId":50608,"journal":{"name":"Current Opinion in Cell Biology","volume":"88 ","pages":"Article 102346"},"PeriodicalIF":7.5,"publicationDate":"2024-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140195584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vittoria Graziani , Eva Crosas-Molist , Samantha L. George , Victoria Sanz-Moreno
{"title":"Organelle adaptations in response to mechanical forces during tumour dissemination","authors":"Vittoria Graziani , Eva Crosas-Molist , Samantha L. George , Victoria Sanz-Moreno","doi":"10.1016/j.ceb.2024.102345","DOIUrl":"https://doi.org/10.1016/j.ceb.2024.102345","url":null,"abstract":"<div><p>Cell migration plays a pivotal role in various biological processes including cancer dissemination and successful metastasis, where the role of mechanical signals is increasingly acknowledged. This review focuses on the intricate mechanisms through which cancer cells modulate their migratory strategies via organelle adaptations in response to the extracellular matrix (ECM). Specifically, the nucleus and mitochondria emerge as pivotal mediators in this process. These organelles serve as sensors, translating mechanical stimuli into rapid metabolic alterations that sustain cell migration. Importantly, prolonged exposure to such stimuli can induce transcriptional or epigenetic changes, ultimately enhancing metastatic traits. Deciphering the intricate interplay between ECM properties and organelle adaptations not only advances our understanding of cytoskeletal dynamics but also holds promise for the development of innovative anti-metastatic therapeutic strategies.</p></div>","PeriodicalId":50608,"journal":{"name":"Current Opinion in Cell Biology","volume":"88 ","pages":"Article 102345"},"PeriodicalIF":7.5,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0955067424000243/pdfft?md5=20520a4520c714f72e6bb8fa77c730b5&pid=1-s2.0-S0955067424000243-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140113872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Outside Back Cover","authors":"","doi":"10.1016/S0955-0674(24)00031-0","DOIUrl":"https://doi.org/10.1016/S0955-0674(24)00031-0","url":null,"abstract":"","PeriodicalId":50608,"journal":{"name":"Current Opinion in Cell Biology","volume":"87 ","pages":"Article 102352"},"PeriodicalIF":7.5,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140112926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Advantages of integrating Brillouin microscopy in multimodal mechanical mapping of cells and tissues","authors":"Chenchen Handler , Claudia Testi , Giuliano Scarcelli","doi":"10.1016/j.ceb.2024.102341","DOIUrl":"https://doi.org/10.1016/j.ceb.2024.102341","url":null,"abstract":"<div><p>Recent research has highlighted the growing significance of the mechanical properties of cells and tissues in the proper execution of physiological functions within an organism; alterations to these properties can potentially result in various diseases. These mechanical properties can be assessed using various techniques that vary in spatial and temporal resolutions as well as applications. Due to the wide range of mechanical behaviors exhibited by cells and tissues, a singular mapping technique may be insufficient in capturing their complexity and nuance. Consequently, by utilizing a combination of methods–multimodal mechanical mapping–researchers can achieve a more comprehensive characterization of mechanical properties, encompassing factors such as stiffness, modulus, viscoelasticity, and forces. Furthermore, different mapping techniques can provide complementary information and enable the exploration of spatial and temporal variations to enhance our understanding of cellular dynamics and tissue mechanics. By capitalizing on the unique strengths of each method while mitigating their respective limitations, a more precise and holistic understanding of cellular and tissue mechanics can be obtained. Here, we spotlight Brillouin microscopy (BM) as a noncontact, noninvasive, and label-free mechanical mapping modality to be coutilized alongside established mechanical probing methods. This review summarizes some of the most widely adopted individual mechanical mapping techniques and highlights several recent multimodal approaches demonstrating their utility. We envision that future studies aim to adopt multimodal techniques to drive advancements in the broader realm of mechanobiology.</p></div>","PeriodicalId":50608,"journal":{"name":"Current Opinion in Cell Biology","volume":"88 ","pages":"Article 102341"},"PeriodicalIF":7.5,"publicationDate":"2024-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140103519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marina Garrido-Casado, Gloria Asensio-Juárez, Vanessa C. Talayero, Miguel Vicente-Manzanares
{"title":"Engines of change: Nonmuscle myosin II in mechanobiology","authors":"Marina Garrido-Casado, Gloria Asensio-Juárez, Vanessa C. Talayero, Miguel Vicente-Manzanares","doi":"10.1016/j.ceb.2024.102344","DOIUrl":"https://doi.org/10.1016/j.ceb.2024.102344","url":null,"abstract":"<div><p>The emergence of mechanobiology has unveiled complex mechanisms by which cells adjust intracellular force production to their needs. Most communicable intracellular forces are generated by myosin II, an actin-associated molecular motor that transforms adenosine triphosphate (ATP) hydrolysis into contraction in nonmuscle and muscle cells. Myosin II-dependent force generation is tightly regulated, and deregulation is associated with specific pathologies. Here, we focus on the role of myosin II (nonmuscle myosin II, NMII) in force generation and mechanobiology. We outline the regulation and molecular mechanism of force generation by NMII, focusing on the actual outcome of contraction, that is, force application to trigger mechanosensitive events or the building of dissipative structures. We describe how myosin II-generated forces drive two major types of events: modification of the cellular morphology and/or triggering of genetic programs, which enhance the ability of cells to adapt to, or modify, their microenvironment. Finally, we address whether targeting myosin II to impair or potentiate its activity at the motor level is a viable therapeutic strategy, as illustrated by recent examples aimed at modulating cardiac myosin II function in heart disease.</p></div>","PeriodicalId":50608,"journal":{"name":"Current Opinion in Cell Biology","volume":"87 ","pages":"Article 102344"},"PeriodicalIF":7.5,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0955067424000231/pdfft?md5=8a506b8bb2567b96124253e9f8a84a74&pid=1-s2.0-S0955067424000231-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140024114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hyeonwoo Kim , Seungeun Oh , Seongsoo Lee , Kwang suk Lee , YongKeun Park
{"title":"Recent advances in label-free imaging and quantification techniques for the study of lipid droplets in cells","authors":"Hyeonwoo Kim , Seungeun Oh , Seongsoo Lee , Kwang suk Lee , YongKeun Park","doi":"10.1016/j.ceb.2024.102342","DOIUrl":"https://doi.org/10.1016/j.ceb.2024.102342","url":null,"abstract":"<div><p>Lipid droplets (LDs), once considered mere storage depots for lipids, have gained recognition for their intricate roles in cellular processes, including metabolism, membrane trafficking, and disease states like obesity and cancer. This review explores label-free imaging techniques' applications in LD research. We discuss holotomography and vibrational spectroscopic microscopy, emphasizing their potential for studying LDs without molecular labels, and we highlight the growing integration of artificial intelligence. Clinical applications in disease diagnosis and therapy are also considered.</p></div>","PeriodicalId":50608,"journal":{"name":"Current Opinion in Cell Biology","volume":"87 ","pages":"Article 102342"},"PeriodicalIF":7.5,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139999639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Editorial overview: Functional specialization of the cytoskeleton in diverse cell types","authors":"Adele Marston, Matthew J. Tyska","doi":"10.1016/j.ceb.2024.102343","DOIUrl":"https://doi.org/10.1016/j.ceb.2024.102343","url":null,"abstract":"","PeriodicalId":50608,"journal":{"name":"Current Opinion in Cell Biology","volume":"87 ","pages":"Article 102343"},"PeriodicalIF":7.5,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139935839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}