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 : 2024-10-07eCollection Date: 2024-12-01DOI: 10.1007/s12551-024-01242-1
D Del Rosario-Gilabert, A Valenzuela-Miralles, G Esquiva
{"title":"Advances in mechanotransduction and sonobiology: effects of audible acoustic waves and low-vibration stimulations on mammalian cells.","authors":"D Del Rosario-Gilabert, A Valenzuela-Miralles, G Esquiva","doi":"10.1007/s12551-024-01242-1","DOIUrl":"10.1007/s12551-024-01242-1","url":null,"abstract":"<p><p>In recent decades, research on mechanotransduction has advanced considerably, focusing on the effects of audible acoustic waves (AAWs) and low-vibration stimulation (LVS), which has propelled the field of sonobiology forward. Taken together, the current evidence demonstrates the influence of these biosignals on key cellular processes, such as growth, differentiation and migration in mammalian cells, emphasizing the determining role of specific physical parameters during stimulation, such as frequency, sound pressure level/amplitude and exposure time. These mechanical waves interact with various cellular elements, including ion channels, primary cilia, cell-cell adhesion receptors, cell-matrix and extracellular matrix proteins, and focal adhesion complexes. These components connect with the cytoskeletal fibre network, enabling the transmission of mechanical stimuli towards the nucleus. The nucleus, in turn, linked to the cytoskeleton via the linkers of the nucleoskeleton and cytoskeleton complex, acts as a mechanosensitive centre, not only responding to changes in cytoskeletal stiffness and nuclear tension but also regulating gene expression through the transcriptional co-activator YAP/TAZ and interactions between chromatin and the nuclear envelope. This intricate chain of mechanisms highlights the potential of sonobiology in various fields, including dentistry, regenerative medicine, tissue engineering and cancer research. However, progress in these fields requires the establishment of standardized measurement methodologies and biocompatible experimental setups to ensure the reproducibility of results.</p>","PeriodicalId":9094,"journal":{"name":"Biophysical reviews","volume":"16 6","pages":"783-812"},"PeriodicalIF":4.9,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11735818/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143000007","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 : 2024-10-04eCollection Date: 2024-12-01DOI: 10.1007/s12551-024-01246-x
David J Beech, Charline Fagnen, Antreas C Kalli
{"title":"Biological sensing of fluid flow-lessons from PIEZO1.","authors":"David J Beech, Charline Fagnen, Antreas C Kalli","doi":"10.1007/s12551-024-01246-x","DOIUrl":"10.1007/s12551-024-01246-x","url":null,"abstract":"<p><p>The flow sensing endothelial cell lining of blood and lymphatic vessels is essential in vertebrates. While the mechanisms are still mysterious in many regards, several critical components became apparent through molecular biology studies. In this article, we focus on PIEZO1, which forms unusual force-sensing ion channels capable of rapid transduction of force into biological effect. We describe current knowledge and emerging challenges. We suggest the idea of using computation to construct the flow sensing mechanism of endothelium to advance understanding, develop testable hypotheses and potentially design novel therapeutic strategies and synthetic flow sensing devices.</p>","PeriodicalId":9094,"journal":{"name":"Biophysical reviews","volume":"16 6","pages":"871-873"},"PeriodicalIF":4.9,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11735714/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143000021","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":"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}
Biophysical reviewsPub Date : 2024-09-30eCollection Date: 2024-12-01DOI: 10.1007/s12551-024-01232-3
Gauri Tyagi, Shinjinee Sengupta
{"title":"Unveiling the multifaceted potential of amyloid fibrils: from pathogenic myths to biotechnological marvels.","authors":"Gauri Tyagi, Shinjinee Sengupta","doi":"10.1007/s12551-024-01232-3","DOIUrl":"10.1007/s12551-024-01232-3","url":null,"abstract":"<p><p>Amyloid fibrils, historically stigmatized due to their association with diseases like Alzheimer's and Parkinson's, are now recognized as a distinct class of functional proteins with extraordinary potential. These highly ordered, cross-β-sheet protein aggregates are found across all domains of life, playing crucial physiological roles. In bacteria, functional amyloids like curli fibers are essential for surface adhesion, biofilm formation, and viral DNA packaging. Fungal prions exploit amyloid conformations to regulate translation, metabolism, and virulence, while mammalian amyloids are integral to melanin synthesis, hormone storage, and antimicrobial defense. The stability and hydrophobic nature of amyloid scaffolds underpin these diverse biological functions. Beyond their natural roles, amyloid fibrils offer unique capabilities in biomedicine, nanotechnology, and materials science. Their exceptional mechanical strength and biocompatibility make them ideal for controlled drug delivery, tissue engineering scaffolds, and enzyme immobilization. The intrinsic fluorescence and optical properties of certain amyloids open up innovative applications in biosensors, molecular probes, and optoelectronic devices. Furthermore, amyloid fibrils can template metal nanowires, enhance conducting materials, and form nanocomposites by integrating with polymers. This newfound appreciation for the functional diversity of amyloids has ignited intense research efforts to elucidate their molecular mechanisms, stability, and tunable properties. By unraveling the structural intricacies of functional amyloids, researchers aim to harness their remarkable attributes for groundbreaking biomedical therapies, advanced nanomaterials, and sustainable biotechnological innovations. This review explores the transformative journey of amyloids from pathological entities to biotechnological marvels, highlighting their vast potential across agriculture, environmental remediation, and industrial processes.</p>","PeriodicalId":9094,"journal":{"name":"Biophysical reviews","volume":"16 6","pages":"737-751"},"PeriodicalIF":4.9,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11735760/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143000012","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}