Biophysical reviewsPub Date : 2024-10-28eCollection Date: 2024-10-01DOI: 10.1007/s12551-024-01243-0
Matthew A B Baker, Seiji Kojima
{"title":"Structure, function, and biophysics of bacterial motility and the flagellar motor-IUPAB2024 session commentary.","authors":"Matthew A B Baker, Seiji Kojima","doi":"10.1007/s12551-024-01243-0","DOIUrl":"https://doi.org/10.1007/s12551-024-01243-0","url":null,"abstract":"<p><p>On the 28th of June, 2024, we held a session focusing on bacterial motility at the International Union of Pure and Applied Biophysics Congress, held in Kyoto (IUPAB2024). This session was jointly chaired by Professor Seiji Kojima of Nagoya University and Associate Professor Matthew Baker of UNSW Sydney, highlighting significant advancements and discoveries in bacterial cellular mechanisms and motility, with six speakers each from different countries.</p>","PeriodicalId":9094,"journal":{"name":"Biophysical reviews","volume":"16 5","pages":"537-538"},"PeriodicalIF":4.9,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11604866/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142766175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Biophysical reviewsPub Date : 2024-10-28eCollection Date: 2024-10-01DOI: 10.1007/s12551-024-01240-3
Matthew A B Baker
{"title":"Meet the IUPAB Councillor: A/Prof Matthew AB Baker (UNSW Sydney, Australia).","authors":"Matthew A B Baker","doi":"10.1007/s12551-024-01240-3","DOIUrl":"https://doi.org/10.1007/s12551-024-01240-3","url":null,"abstract":"<p><p>An introduction to IUPAB Councillor (2024-2027) A/Prof Matthew AB Baker (UNSW Sydney).</p>","PeriodicalId":9094,"journal":{"name":"Biophysical reviews","volume":"16 5","pages":"511-512"},"PeriodicalIF":4.9,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11604980/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142766054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Biophysical reviewsPub Date : 2024-10-21eCollection Date: 2024-10-01DOI: 10.1007/s12551-024-01226-1
Thomas Gutsmann
{"title":"\"Meet the IUPAB councilor\"-Thomas Gutsmann.","authors":"Thomas Gutsmann","doi":"10.1007/s12551-024-01226-1","DOIUrl":"https://doi.org/10.1007/s12551-024-01226-1","url":null,"abstract":"<p><p>As one of the twelve newly elected councillors, it is my pleasure to provide a brief biographical sketch for the readers of Biophys. Rev. and the members of the Biophysical Societies. I have been actively involved in the German Biophysical Society (DGfB) since 2008, initially as the speaker for the \"Membrane Biophysics\" section and, since 2015, as the secretary. Within the IUPAB council I follow Prof. Hans-Joachim Galla, former Secretary and President of the German Biophysical Society, who served as a councillor for two terms from 2018 to 2024. Thus, a direct continuation of the German contribution to the IUPAB is guaranteed. My journey in biophysics began during my studies of physics at the University of Kiel, where I specialized in physiology and biophysics. After earning my doctorate in the lab of Ulrich Seydel at the Research Center Borstel, I spent two years at the University of California, Santa Barbara, working in Paul Hansma's lab on the development and application of atomic force microscopy. During my time at UCSB, I also collaborated with Jacob Israelachvili's lab on membrane properties. Since 2008, I have been leading the Biophysics Research Group at the Research Center Borstel, Leibniz Lung Center. In 2010, I was appointed as a professor at the University of Lübeck. Additionally, since 2023, I have been serving as an associate member at the Centre for Structural Systems Biology (CSSB) in Hamburg.</p>","PeriodicalId":9094,"journal":{"name":"Biophysical reviews","volume":"16 5","pages":"515-517"},"PeriodicalIF":4.9,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11604882/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142766096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Biophysical reviewsPub Date : 2024-10-18eCollection Date: 2024-10-01DOI: 10.1007/s12551-024-01241-2
Tamiki Komatsuzaki
{"title":"An attempt of Seibutsu-Butsuri in Kyoto IUPAB Congress 2024.","authors":"Tamiki Komatsuzaki","doi":"10.1007/s12551-024-01241-2","DOIUrl":"https://doi.org/10.1007/s12551-024-01241-2","url":null,"abstract":"<p><p>In Kyoto IUPAB Congress, a Japanese bimonthly magazine of biophysics, Seibutsu-Butsuri, organized a round table, with an online English journal of Biophysics and Physicobiology, to discuss the possible future of biophysics by gathering seven prominent researchers who participated in the congress. The content will be published both in Japanese and English in the two journals, which is expected to stimulate our next generation researchers in biophysics over the world.</p>","PeriodicalId":9094,"journal":{"name":"Biophysical reviews","volume":"16 5","pages":"509-510"},"PeriodicalIF":4.9,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11604864/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142766174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Biophysical reviewsPub Date : 2024-10-17eCollection Date: 2024-10-01DOI: 10.1007/s12551-024-01247-w
Damien Hall, Wilma K Olson
{"title":"<i>Biophysical Reviews</i> special issue for the 21st IUPAB congress and 62nd meeting of the Biophysical Society of Japan, Kyoto, Japan, 2024.","authors":"Damien Hall, Wilma K Olson","doi":"10.1007/s12551-024-01247-w","DOIUrl":"https://doi.org/10.1007/s12551-024-01247-w","url":null,"abstract":"<p><p>This Editorial for Volume 16 Issue 5 introduces the contents of the Special Issue featuring content from the 21st IUPAB Congress held jointly with the 62nd Biophysical Society of Japan Annual Meeting.</p>","PeriodicalId":9094,"journal":{"name":"Biophysical reviews","volume":"16 5","pages":"497-500"},"PeriodicalIF":4.9,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11604905/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142766101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Biophysical reviewsPub Date : 2024-10-07eCollection Date: 2024-10-01DOI: 10.1007/s12551-024-01231-4
Jake Turley, Kim Whye Leong, Chii Jou Chan
{"title":"Novel imaging and biophysical approaches to study tissue hydraulics in mammalian folliculogenesis.","authors":"Jake Turley, Kim Whye Leong, Chii Jou Chan","doi":"10.1007/s12551-024-01231-4","DOIUrl":"https://doi.org/10.1007/s12551-024-01231-4","url":null,"abstract":"<p><p>A key developmental stage in mammalian folliculogenesis is the formation of a fluid-filled lumen (antrum) prior to ovulation. While it has long been speculated that the follicular fluid is essential for oocyte maturation and ovulation, little is known about the morphogenesis and the mechanisms driving the antrum formation and ovulation, potentially due to challenges in imaging tissue dynamics in large tissues. Misregulation of such processes leads to anovulation, a hallmark of infertility in ageing and diseases such as the polycystic ovary syndrome (PCOS). In this review, we discuss recent advances in deep tissue imaging techniques, machine learning and theoretical approaches that have been applied to study development and diseases. We propose that an integrative approach combining these techniques is essential for understanding the physics of hydraulics in follicle development and ovarian functions.</p>","PeriodicalId":9094,"journal":{"name":"Biophysical reviews","volume":"16 5","pages":"625-637"},"PeriodicalIF":4.9,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11604877/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142766073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Biophysical reviewsPub Date : 2024-10-02eCollection Date: 2024-10-01DOI: 10.1007/s12551-024-01238-x
Takayuki Ariga
{"title":"Nonthermal fluctuations accelerate biomolecular motors.","authors":"Takayuki Ariga","doi":"10.1007/s12551-024-01238-x","DOIUrl":"https://doi.org/10.1007/s12551-024-01238-x","url":null,"abstract":"<p><p>Intracellular transport is essential for maintaining cellular function. This process is driven by different mechanisms in prokaryotic and eukaryotic cells. In small prokaryotic cells, diffusion is the primary means of transport, while larger eukaryotic cells also rely on active transport by molecular motors such as kinesin and dynein. Recently, it has become evident that, in addition to diffusion based on thermal fluctuations (Brownian motion), which was conventionally considered a diffusion mechanism within living cells, nonthermal fluctuations generated by metabolic activities play a crucial role in intracellular diffusion. Similarly, while molecular motors have been proposed to exploit thermal fluctuations in the environment following the direct observation and manipulation of single molecules, they have also been reported to utilize nonthermal fluctuations in recent years. This review begins with a brief overview of the historical knowledge of diffusive intracellular transport, which has been extended from the thermal fluctuations to the nonthermal fluctuations generated by metabolic activity. It then introduces recent findings on how nonthermal fluctuations accelerate the motion of molecular motors and discusses future perspectives on the general effects of these fluctuations on molecules in living cells.</p>","PeriodicalId":9094,"journal":{"name":"Biophysical reviews","volume":"16 5","pages":"605-612"},"PeriodicalIF":4.9,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11604964/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142766071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Extreme-value analysis in nano-biological systems: applications and implications.","authors":"Kumiko Hayashi, Nobumichi Takamatsu, Shunki Takaramoto","doi":"10.1007/s12551-024-01239-w","DOIUrl":"https://doi.org/10.1007/s12551-024-01239-w","url":null,"abstract":"<p><p>Extreme value analysis (EVA) is a statistical method that studies the properties of extreme values of datasets, crucial for fields like engineering, meteorology, finance, insurance, and environmental science. EVA models extreme events using distributions such as Fréchet, Weibull, or Gumbel, aiding in risk prediction and management. This review explores EVA's application to nanoscale biological systems. Traditionally, biological research focuses on average values from repeated experiments. However, EVA offers insights into molecular mechanisms by examining extreme data points. We introduce EVA's concepts with simulations and review its use in studying motor protein movements within cells, highlighting the importance of in vivo analysis due to the complex intracellular environment. We suggest EVA as a tool for extracting motor proteins' physical properties in vivo and discuss its potential in other biological systems. While there have been only a few applications of EVA to biological systems, it holds promise for uncovering hidden properties in extreme data, promoting its broader application in life sciences.</p>","PeriodicalId":9094,"journal":{"name":"Biophysical reviews","volume":"16 5","pages":"571-579"},"PeriodicalIF":4.9,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11604884/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142765911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Biophysical reviewsPub Date : 2024-09-30eCollection Date: 2024-10-01DOI: 10.1007/s12551-024-01233-2
Kunihiko Kaneko
{"title":"Dimensional reduction and adaptation-development-evolution relation in evolved biological systems.","authors":"Kunihiko Kaneko","doi":"10.1007/s12551-024-01233-2","DOIUrl":"https://doi.org/10.1007/s12551-024-01233-2","url":null,"abstract":"<p><p>Living systems are complex and hierarchical, with diverse components at different scales, yet they sustain themselves, grow, and evolve over time. How can a theory of such complex biological states be developed? Here we note that for a hierarchical biological system to be robust, it must achieve consistency between micro-scale (e.g., molecular) and macro-scale (e.g., cellular) phenomena. This allows for a universal theory of adaptive change in cells based on biological robustness and consistency between cellular growth and molecular replication. Here, we show how adaptive changes in high-dimensional phenotypes (biological states) are constrained to low-dimensional space, leading to the derivation of a macroscopic law for cellular states. The theory is then extended to evolution, leading to proportionality between evolutionary and environmental responses, as well as proportionality between phenotypic variances due to noise and due to genetic changes. The universality of the results across several models and experiments is demonstrated. Then, by further extending the theory of evolutionary dimensional reduction to multicellular systems, the relationship between multicellular development and evolution, in particular, the developmental hourglass, is demonstrated. Finally, the possibility of collapse of dimensional reduction under nutrient limitation is discussed.</p>","PeriodicalId":9094,"journal":{"name":"Biophysical reviews","volume":"16 5","pages":"639-649"},"PeriodicalIF":4.9,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11604870/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142766202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Biophysical reviewsPub Date : 2024-09-30eCollection Date: 2024-10-01DOI: 10.1007/s12551-024-01236-z
Amruta Sridhara, Yuta Shimamoto
{"title":"Microtubule choreography: spindle self-organization during cell division.","authors":"Amruta Sridhara, Yuta Shimamoto","doi":"10.1007/s12551-024-01236-z","DOIUrl":"https://doi.org/10.1007/s12551-024-01236-z","url":null,"abstract":"<p><p>During cell division, the network of microtubules undergoes massive rearrangement to self-organize into the spindle, a bipolar structure essential for accurate chromosome segregation. This structure ensures the stable transmission of the genome from the mother cell to two daughter cells, yet the process by which the ordered architecture emerges from a collection of protein \"parts\" remains a mystery. In this review, we focus on several key spindle proteins, describing how they move, crosslink, and grow microtubules in vitro and contribute to the spindle's structural organization. We categorize these proteins into groups, such as transporters, bundlers, and nucleators, to highlight their functional roles. We also present an advanced perspective on the spindle's complex polymer architecture and its temporal assembly order in cellular contexts. This in situ level information should guide the minimal reconstitution of the spindle, helping to elucidate the biophysical principles underlying essential cytoskeletal self-organization.</p>","PeriodicalId":9094,"journal":{"name":"Biophysical reviews","volume":"16 5","pages":"613-624"},"PeriodicalIF":4.9,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11604906/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142766069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}