Lance A Davidson, Sommer Anjum, Jing Yang, Geneva Masak
{"title":"StrainMapperJ: An Easy-to-Use Digital Image Correlation Toolkit for Exploring and Quantifying the Mechanics of Deforming Tissues.","authors":"Lance A Davidson, Sommer Anjum, Jing Yang, Geneva Masak","doi":"10.1007/978-3-032-19509-8_6","DOIUrl":"10.1007/978-3-032-19509-8_6","url":null,"abstract":"<p><p>Multicellular tissues are shaped and remodeled during development, organogenesis, wound healing, cancer, and regeneration, as well as during a broad range of diseases. Time-lapse sequences of tissue movements convey a wealth of information about the processes driving their self-assembly and mechanobiology. Here we present StrainMapperJ, a digital image correlation (DIC) tool and supporting macros for the widely used open-source image analysis package ImageJ. StrainMapperJ can produce a diverse set of graphics for mechanical data exploration. At its core, StrainMapperJ uses the ImageJ plugin bUnwarpJ to map deformations in one image to match a second. From these results, StrainMapperJ can generate 2D maps of mechanical strain in the image frame, principal engineering strain and orientation, area strains, synthetic movement trajectories, and vorticity. StrainMapperJ can generate a variety of graphical outputs for quantitative analysis that registers or maps mechanical information directly onto the source image sequence. Additionally, the algorithms used in StrainMapperJ can yield quantitative information from short time-lapse sequences, often only a few minutes in duration, reducing the need for long-term imaging. In addition to these macros, we provide guidance on preparing image datasets, troubleshooting the analysis pipeline, and interpreting StrainMapperJ-produced maps for hypothesis generation and testing.</p>","PeriodicalId":39320,"journal":{"name":"Results and Problems in Cell Differentiation","volume":"78 ","pages":"129-147"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148139281","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}
Kamila Kozłowska-Tomczyk, Zuzanna Flis, Justyna Gogola-Mruk, Piotr Szatkowski, Edyta Molik, Anna Ptak
{"title":"Application of Bioactive Natural Compounds to Promote Cell Proliferation and Migration in the Wound Healing Process.","authors":"Kamila Kozłowska-Tomczyk, Zuzanna Flis, Justyna Gogola-Mruk, Piotr Szatkowski, Edyta Molik, Anna Ptak","doi":"10.1007/978-3-032-19509-8_16","DOIUrl":"10.1007/978-3-032-19509-8_16","url":null,"abstract":"<p><p>Wound healing is a complex biological process that restores the integrity and strength of the skin. Keratinocytes and fibroblasts play pivotal roles in tissue repair through their interactions and signaling pathways. Keratinocytes proliferate to re-epithelialize the wound, while fibroblasts contribute to the formation of new extracellular matrix. Although cell proliferation is essential for wound healing, excessive proliferation can lead to scar formation. Therefore, strategies that balance proliferation and migration, along with proper mechanotransduction, are crucial for efficient wound repair. Sheep and camel milk contain numerous bioactive substances, such as insulin, lactoferrin, proline, and conjugated linoleic acid, that have demonstrated promising effects on wound healing. While direct evidence on skin cell proliferation and migration is limited, the properties of these bioactive substances suggest beneficial effects in these areas. Therefore, incorporating these milks into hydrogel dressings can promote wound healing. Moreover, improving the cell-material mechano-interaction in such hydrogels could lead to the development of novel regenerative medical therapies.</p>","PeriodicalId":39320,"journal":{"name":"Results and Problems in Cell Differentiation","volume":"78 ","pages":"419-455"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148139283","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}
{"title":"Integrating Mechanical Loading, Mechanotransduction, and Biological Responses in Musculoskeletal Tissues Across the Lifespan: Regulation Influenced by Cells, Extracellular Matrix, and Sex.","authors":"David A Hart","doi":"10.1007/978-3-032-19509-8_13","DOIUrl":"10.1007/978-3-032-19509-8_13","url":null,"abstract":"<p><p>Development of cellular mechanisms to facilitate mechanosensing and mechanotransduction occurred very early in evolution during adaptation to the boundary conditions of Earth, in particular, gravity. Subsequently, with the evolution of increasingly complex organisms leading to Homo sapiens, multiple levels of biological regulatory control of mechanical loading were introduced for connective tissues of the musculoskeletal system. Integration of mechanosensing mechanisms with biological regulatory variables exhibits tissue-specific, lifespan-specific, sex specific features. A key integration component is the regulation of response to ground reaction forces. This chapter will discuss various features of this integration and its dynamic nature across the lifespan, and the critical role of the cell-extracellular matrix relationship, and how sex-specific variables appear to influence the functioning of connective tissues, particularly in females, where lifespan transitions (i.e., puberty, pregnancy and lactation, and menopause) appear to contribute to tissue responses to loading.</p>","PeriodicalId":39320,"journal":{"name":"Results and Problems in Cell Differentiation","volume":"78 ","pages":"319-365"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148139291","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}
{"title":"Cellular and Molecular Aspects of Chronic Rejection.","authors":"Zhongcheng Mei, Alexander Sasha Krupnick","doi":"10.1007/978-3-032-07686-1_1","DOIUrl":"https://doi.org/10.1007/978-3-032-07686-1_1","url":null,"abstract":"<p><p>Chronic rejection is a principal cause of long-term graft failure in solid organ transplantation. Characterized by progressive fibrotic remodeling, chronic rejection results from complex interactions among alloimmune responses, persistent inflammation, and dysregulated tissue repair mechanisms. This chapter provides a comprehensive overview of the cellular and molecular mechanisms underlying chronic rejection, with a focus on the roles of innate immune cells, T and B lymphocytes, profibrotic cytokines, signaling pathways, and extracellular matrix remodeling. A detailed mechanistic understanding of these pathways is critical for the identification of novel biomarkers and the development of targeted therapeutic strategies to prevent or ameliorate chronic rejection, thereby improving long-term graft survival.</p>","PeriodicalId":39320,"journal":{"name":"Results and Problems in Cell Differentiation","volume":"77 ","pages":"3-23"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145890366","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}
Felix J Klimitz, Leonard Knoedler, Samuel Knoedler, Bohdan Pomahac, Martin Kauke-Navarro
{"title":"Chronic Rejection in Facial Vascularized Composite Allotransplantation (fVCA).","authors":"Felix J Klimitz, Leonard Knoedler, Samuel Knoedler, Bohdan Pomahac, Martin Kauke-Navarro","doi":"10.1007/978-3-032-07686-1_10","DOIUrl":"https://doi.org/10.1007/978-3-032-07686-1_10","url":null,"abstract":"<p><p>Chronic rejection (CR) remains a major barrier to long-term success in facial vascularized composite allotransplantation (fVCA), particularly in facial transplants. Unlike acute rejection, CR is a gradual, progressive process marked by vasculopathy, fibrosis, and functional graft decline. Histopathologic features include intimal hyperplasia, dermal sclerosis, adnexal atrophy, and telangiectasia. Immune mechanisms driving CR involve persistent activation of Th1 and Th17 T cells, macrophages, and, to a lesser extent, B cells, which form tertiary lymphoid structures. Dysregulated cytokines and chemokines, such as IFN-γ, IL-17, and IL-6, perpetuate inflammation and fibrosis, whereas the downregulation of regulatory mediators like IL-10 impairs immune resolution. Chronic antigen exposure, complement activation, and the presence of tissue-resident memory T cells further sustain graft injury. Clinically, CR presents with tightening of facial tissue, pigmentary changes, pain, and impaired oral and facial function, which can sometimes progress to necrosis and graft failure. Diagnostic challenges persist due to heterogeneous presentation and a lack of standardized criteria. Early detection through protocol biopsies, mucosal sampling, and vascular imaging is essential. Future directions emphasize the need for molecular diagnostics, targeted immunomodulation, and antifibrotic therapies. A deeper understanding of CR pathophysiology is critical to improving graft longevity and patient quality of life in fVCA.</p>","PeriodicalId":39320,"journal":{"name":"Results and Problems in Cell Differentiation","volume":"77 ","pages":"201-221"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145890397","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}
{"title":"Female Germline Cysts in Clitellate Annelids: Organization, Functioning, and Diversity.","authors":"Piotr Świątek, Anna Z Urbisz","doi":"10.1007/978-3-032-06766-1_11","DOIUrl":"10.1007/978-3-032-06766-1_11","url":null,"abstract":"<p><p>Germ cell precursors developing into functional gametes tend to form syncytial groups of cells known as cysts, clusters, or nests. Such cysts develop in the early stages of gametogenesis when gonial cells divide without full cytokineses, and cells (cystocytes) stay interconnected by relatively large cytoplasmic channels termed cytoplasmic (intercellular) bridges or ring canals. Such germline cysts occur during oogenesis in clitellate annelids (Clitellata). A distinctive feature of female cysts in clitellates is the presence of the cytophore, a shared anuclear cytoplasmic mass that occupies the cyst center. Each clustering cystocyte has one ring canal connecting it to the cytophore. This general pattern of cyst architecture is conserved in this group; however, the number of interconnected cells (from eight to 2500) and the shape and dimensions of the cytophore (reticular, ball-like, or tree-like) vary between taxa. This plasticity in cyst organization is usually conserved at the family/subfamily level and can, therefore, be a useful morphological/histological feature for phylogenetical considerations.This chapter presents the general aspects of cysts' organization and function. Moreover, we present several variants of cyst organization found in the main groups of Clitellata, such as microdriles, leech-like taxa, and megadriles. We also note the recent progress in cyst analyses and the resulting perspectives on cyst evolution in this group.</p>","PeriodicalId":39320,"journal":{"name":"Results and Problems in Cell Differentiation","volume":"76 ","pages":"207-248"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145582258","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}
{"title":"Trunk Muscle Differentiation and Growth in Vertebrates.","authors":"Damian Lewandowski, Małgorzata Daczewska","doi":"10.1007/978-3-032-06766-1_5","DOIUrl":"10.1007/978-3-032-06766-1_5","url":null,"abstract":"<p><p>Skeletal muscles in vertebrates are highly specialised tissues. Their development involves cell cycle withdrawal, cellular fusion, and differentiation into multinucleated muscle fibres. Most insights into trunk muscle development have been derived from studies on both anamniotic and amniotic model species, revealing numerous similarities across species. However, valuable perspectives on the evolutionary aspects of myogenesis have been obtained from research on non-model vertebrates. Despite variations in spatiotemporal gene expression and morphology, the goal is to develop multinucleated, fully functional trunk muscles.</p>","PeriodicalId":39320,"journal":{"name":"Results and Problems in Cell Differentiation","volume":"76 ","pages":"65-90"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145582513","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}
{"title":"Evo-devo and the Biodiversity Crisis.","authors":"Peter K Dearden","doi":"10.1007/978-3-032-06766-1_3","DOIUrl":"10.1007/978-3-032-06766-1_3","url":null,"abstract":"<p><p>Evolution and development, as a field, seek to understand life's diversity. It asks questions about how diversity evolves, what constrains diversity, and how the mechanisms of development interact with evolution to produce different forms. This concentration on diversity is ironic, given that we live in an age where diversity loss is increasing and ongoing. As the warming of the planet accelerates, this, combined with land use change and the growing human population, will lead to the obliteration of entire ecosystems, it seems timely to ask how a field that studies organismal diversity might help conserve and maintain it.</p>","PeriodicalId":39320,"journal":{"name":"Results and Problems in Cell Differentiation","volume":"76 ","pages":"37-46"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145582141","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}
Paula Irles, Yoelvis Sulbaran-Bracho, Andres F Sarrazin
{"title":"The Ring-Legged Earwig, Euborellia annulipes (Dermaptera, Insecta): A Promising Model to Study Development and Reproductive Strategies of Hemimetabolous Insects.","authors":"Paula Irles, Yoelvis Sulbaran-Bracho, Andres F Sarrazin","doi":"10.1007/978-3-032-06766-1_10","DOIUrl":"10.1007/978-3-032-06766-1_10","url":null,"abstract":"<p><p>This chapter comprehensively reviews the phylogenetic position, morphology, reproductive strategies, and developmental biology of the ring-legged earwig Euborellia annulipes. Special reference is given to the embryonic and postembryonic development, as well as oogenesis, with particular emphasis on the role of the juvenile hormone in this process. Additionally, the influence of maternal care on offspring survival and microbiome transmission is explored. In the light of the presented and discussed analyses, E. annulipes emerges as a new model species suitable for studying the evolution of insect segmentation, anagenesis of insect ovaries, and parental investment in nonholometabolous insects.</p>","PeriodicalId":39320,"journal":{"name":"Results and Problems in Cell Differentiation","volume":"76 ","pages":"183-206"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145582511","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}
Maria A Katsianou, Antonios N Gargalionis, Athanasios G Papavassiliou, Efthimia K Basdra
{"title":"Epigenetic Regulation of RUNX2 in Bone Mechanobiology.","authors":"Maria A Katsianou, Antonios N Gargalionis, Athanasios G Papavassiliou, Efthimia K Basdra","doi":"10.1007/978-3-032-19509-8_14","DOIUrl":"10.1007/978-3-032-19509-8_14","url":null,"abstract":"<p><p>Bone is a highly mechanosensitive tissue that adapts its function in response to mechanical cues. These cues are converted into biomechanical signals that regulate osteogenic gene expression through mechanotransduction. Bone homeostasis and the long-term bone adaptation to its mechanical environment depend on the proper integration of mechanical signals with transcriptional programs that regulate osteogenesis. Runt-related transcription factor 2 (RUNX2) is a pioneer transcription factor, a mechanosensitive molecule, which coordinates osteoblast differentiation and bone remodeling. RUNX2 activity in mechanically induced environments is subject to epigenetic regulation. Mechanical cues modulate RUNX2 through epigenetic mechanisms, including DNA methylation, histone modifications, chromatin remodeling, and non-coding RNAs. Proper epigenetic coordination ensures the stability of osteogenic gene expression. Any disruption of this mechanotransduction-epigenetic route leads to bone diseases such as osteoporosis, osteoarthritis, and dysfunctional fracture repair. Moreover, epigenetic reprogramming of RUNX2 is increasingly evident in bone tumors, particularly osteosarcoma, where aberrant RUNX2 activity is associated with cell proliferation, tumor progression, survival, metastasis, and loss of differentiation. This chapter examines current evidence on RUNX2 epigenetic regulation in response to mechanical forces, discusses how its orchestration relates to bone disease and bone tumor development, and underscores potential therapeutic opportunities that arise from targeting specific epigenetic mechanisms.</p>","PeriodicalId":39320,"journal":{"name":"Results and Problems in Cell Differentiation","volume":"78 ","pages":"367-377"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148139245","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}