1
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Zhang Z, Hong D, Ma D, Yang P, Zhang J, Wang X, Wang Y, Meng L, Wang Y, Li Y, Sun Y, Jiang T, Xu Z. Creatine Kinase-MM/Proto-oncogene Tyrosine-Protein Kinase Receptor as a Sensitive Indicator for Duchenne Muscular Dystrophy Carriers. Mol Neurobiol 2024:10.1007/s12035-024-04235-z. [PMID: 38767836 DOI: 10.1007/s12035-024-04235-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 05/13/2024] [Indexed: 05/22/2024]
Abstract
Duchenne muscular dystrophy (DMD), a lethal X-linked recessive genetic disease, is characterized by progressive muscle wasting which will lead to premature death by cardiorespiratory complications in their late twenties. And 2.5-19% DMD carriers that also suffer from skeletal muscle damage or dilated cardiomyopathy when diagnosed as soon as possible is meaningful for prenatal diagnosis and advance warning for self-health. The current DMD carrier screening mainly relies on detecting serum creatine kinase activity, covering only 50-70% DMD carriers which will cause many false negatives and require the discovery of highly effective biomarker and simple detection procedure for DMD carriers. In this article, we have compiled a comprehensive summary of all documented biomarkers associated with DMD and categorized them based on their expression patterns. We specifically pinpointed novel DMD biomarkers, previously unreported in DMD carriers, and conducted further investigations to explore their potential. Compared to creatine kinase activity alone in DMD carriers, creatine kinase-MM can improve the specificity from 73 to 81%. And our investigation revealed another promising protein: proto-oncogene tyrosine-protein kinase receptor (RET). When combined with creatine kinase-MM (creatine kinase-MM/RET ratio), it significantly enhances the specificity (from 81 to 83%) and sensitivity (from 71.4 to 93%) of detecting DMD carriers in serum. Moreover, we successfully devised an efficient method for extracting RET from dried blood spots. This breakthrough allowed us to detect both creatine kinase-MM and RET using dried blood spots without compromising the detection rate.
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Affiliation(s)
- Zhilei Zhang
- Center of Genetic Medicine, The affiliated Obstetrics and Gynecology Hospital with Nanjing Medical University, Nanjing Women and Children's Healthcare Hospital, Nanjing, Jiangsu, China
- , Nanjing, China
| | - Dongyang Hong
- Center of Genetic Medicine, The affiliated Obstetrics and Gynecology Hospital with Nanjing Medical University, Nanjing Women and Children's Healthcare Hospital, Nanjing, Jiangsu, China
- , Nanjing, China
| | - Dingyuan Ma
- Center of Genetic Medicine, The affiliated Obstetrics and Gynecology Hospital with Nanjing Medical University, Nanjing Women and Children's Healthcare Hospital, Nanjing, Jiangsu, China
- , Nanjing, China
| | - Peiying Yang
- Center of Genetic Medicine, The affiliated Obstetrics and Gynecology Hospital with Nanjing Medical University, Nanjing Women and Children's Healthcare Hospital, Nanjing, Jiangsu, China
- , Nanjing, China
| | - Jingjing Zhang
- Center of Genetic Medicine, The affiliated Obstetrics and Gynecology Hospital with Nanjing Medical University, Nanjing Women and Children's Healthcare Hospital, Nanjing, Jiangsu, China
- , Nanjing, China
| | - Xin Wang
- Center of Genetic Medicine, The affiliated Obstetrics and Gynecology Hospital with Nanjing Medical University, Nanjing Women and Children's Healthcare Hospital, Nanjing, Jiangsu, China
- , Nanjing, China
| | - Yan Wang
- Center of Genetic Medicine, The affiliated Obstetrics and Gynecology Hospital with Nanjing Medical University, Nanjing Women and Children's Healthcare Hospital, Nanjing, Jiangsu, China
- , Nanjing, China
| | - Lulu Meng
- Center of Genetic Medicine, The affiliated Obstetrics and Gynecology Hospital with Nanjing Medical University, Nanjing Women and Children's Healthcare Hospital, Nanjing, Jiangsu, China
- , Nanjing, China
| | - Yanyun Wang
- Center of Genetic Medicine, The affiliated Obstetrics and Gynecology Hospital with Nanjing Medical University, Nanjing Women and Children's Healthcare Hospital, Nanjing, Jiangsu, China
- , Nanjing, China
| | - Yahong Li
- Center of Genetic Medicine, The affiliated Obstetrics and Gynecology Hospital with Nanjing Medical University, Nanjing Women and Children's Healthcare Hospital, Nanjing, Jiangsu, China
- , Nanjing, China
| | - Yun Sun
- Center of Genetic Medicine, The affiliated Obstetrics and Gynecology Hospital with Nanjing Medical University, Nanjing Women and Children's Healthcare Hospital, Nanjing, Jiangsu, China
- , Nanjing, China
| | - Tao Jiang
- Center of Genetic Medicine, The affiliated Obstetrics and Gynecology Hospital with Nanjing Medical University, Nanjing Women and Children's Healthcare Hospital, Nanjing, Jiangsu, China
- , Nanjing, China
| | - Zhengfeng Xu
- Center of Genetic Medicine, The affiliated Obstetrics and Gynecology Hospital with Nanjing Medical University, Nanjing Women and Children's Healthcare Hospital, Nanjing, Jiangsu, China
- , Nanjing, China
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2
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Mao Y, Wickström SA. Mechanical state transitions in the regulation of tissue form and function. Nat Rev Mol Cell Biol 2024:10.1038/s41580-024-00719-x. [PMID: 38600372 DOI: 10.1038/s41580-024-00719-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/26/2024] [Indexed: 04/12/2024]
Abstract
From embryonic development, postnatal growth and adult homeostasis to reparative and disease states, cells and tissues undergo constant changes in genome activity, cell fate, proliferation, movement, metabolism and growth. Importantly, these biological state transitions are coupled to changes in the mechanical and material properties of cells and tissues, termed mechanical state transitions. These mechanical states share features with physical states of matter, liquids and solids. Tissues can switch between mechanical states by changing behavioural dynamics or connectivity between cells. Conversely, these changes in tissue mechanical properties are known to control cell and tissue function, most importantly the ability of cells to move or tissues to deform. Thus, tissue mechanical state transitions are implicated in transmitting information across biological length and time scales, especially during processes of early development, wound healing and diseases such as cancer. This Review will focus on the biological basis of tissue-scale mechanical state transitions, how they emerge from molecular and cellular interactions, and their roles in organismal development, homeostasis, regeneration and disease.
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Affiliation(s)
- Yanlan Mao
- Laboratory for Molecular Cell Biology, University College London, London, UK.
- Institute for the Physics of Living Systems, University College London, London, UK.
| | - Sara A Wickström
- Department of Cell and Tissue Dynamics, Max Planck Institute for Molecular Biomedicine, Münster, Germany.
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland.
- Helsinki Institute of Life Science, Biomedicum Helsinki, University of Helsinki, Helsinki, Finland.
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3
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Gao G, Zhou Z. Isthmin-1: A critical regulator of branching morphogenesis and metanephric mesenchyme condensation during early kidney development. Bioessays 2024; 46:e2300189. [PMID: 38161234 DOI: 10.1002/bies.202300189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 12/15/2023] [Accepted: 12/18/2023] [Indexed: 01/03/2024]
Abstract
Isthmin-1 (Ism1) was first described to be syn-expressed with Fgf8 in Xenopus. However, its biological role has not been elucidated until recent years. Despite of accumulated evidence that Ism1 participates in angiogenesis, tumor invasion, macrophage apoptosis, and glucose metabolism, the cognate receptors for Ism1 remain largely unknown. Ism1 deficiency in mice results in renal agenesis (RA) with a transient loss of Gdnf transcription and impaired mesenchyme condensation at E11.5. Ism1 binds to and activates Integrin α8β1 to positively regulate Gdnf/Ret signaling, thus promoting mesenchyme condensation and ureteric epithelium branching morphogenesis. Here, we propose the hypothesis underlying the mechanism by which Ism1 regulates branching morphogenesis during early kidney development.
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Affiliation(s)
- Ge Gao
- Guangdong Cardiovascular Institute, Medical Research Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou, China
- School of Biomedical Sciences, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Zhongjun Zhou
- Guangdong Cardiovascular Institute, Medical Research Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou, China
- School of Biomedical Sciences, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
- Reproductive Medical Center, The University of Hong Kong - Shenzhen Hospital, Shenzhen, China
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4
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Martínez-Torres D, Maldonado V, Pérez-Gallardo C, Yañez R, Candia V, Kalaidzidis Y, Zerial M, Morales-Navarrete H, Segovia-Miranda F. Phenotypic characterization of liver tissue heterogeneity through a next-generation 3D single-cell atlas. Sci Rep 2024; 14:2823. [PMID: 38307948 PMCID: PMC10837128 DOI: 10.1038/s41598-024-53309-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 01/30/2024] [Indexed: 02/04/2024] Open
Abstract
Three-dimensional (3D) geometrical models are potent tools for quantifying complex tissue features and exploring structure-function relationships. However, these models are generally incomplete due to experimental limitations in acquiring multiple (> 4) fluorescent channels in thick tissue sections simultaneously. Indeed, predictive geometrical and functional models of the liver have been restricted to few tissue and cellular components, excluding important cellular populations such as hepatic stellate cells (HSCs) and Kupffer cells (KCs). Here, we combined deep-tissue immunostaining, multiphoton microscopy, deep-learning techniques, and 3D image processing to computationally expand the number of simultaneously reconstructed tissue structures. We then generated a spatial single-cell atlas of hepatic architecture (Hep3D), including all main tissue and cellular components at different stages of post-natal development in mice. We used Hep3D to quantitatively study 1) hepatic morphodynamics from early post-natal development to adulthood, and 2) the effect on the liver's overall structure when changing the hepatic environment after removing KCs. In addition to a complete description of bile canaliculi and sinusoidal network remodeling, our analysis uncovered unexpected spatiotemporal patterns of non-parenchymal cells and hepatocytes differing in size, number of nuclei, and DNA content. Surprisingly, we found that the specific depletion of KCs results in morphological changes in hepatocytes and HSCs. These findings reveal novel characteristics of liver heterogeneity and have important implications for both the structural organization of liver tissue and its function. Our next-gen 3D single-cell atlas is a powerful tool to understand liver tissue architecture, opening up avenues for in-depth investigations into tissue structure across both normal and pathological conditions.
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Affiliation(s)
- Dilan Martínez-Torres
- Department of Cell Biology, Faculty of Biological Sciences, Universidad de Concepción, Concepción, Chile
- Grupo de Procesos en Biología del Desarrollo (GDeP), Faculty of Biological Sciences, Universidad de Concepción, Concepción, Chile
| | - Valentina Maldonado
- Department of Cell Biology, Faculty of Biological Sciences, Universidad de Concepción, Concepción, Chile
- Grupo de Procesos en Biología del Desarrollo (GDeP), Faculty of Biological Sciences, Universidad de Concepción, Concepción, Chile
| | - Cristian Pérez-Gallardo
- Department of Cell Biology, Faculty of Biological Sciences, Universidad de Concepción, Concepción, Chile
- Grupo de Procesos en Biología del Desarrollo (GDeP), Faculty of Biological Sciences, Universidad de Concepción, Concepción, Chile
| | - Rodrigo Yañez
- Department of Cell Biology, Faculty of Biological Sciences, Universidad de Concepción, Concepción, Chile
- Grupo de Procesos en Biología del Desarrollo (GDeP), Faculty of Biological Sciences, Universidad de Concepción, Concepción, Chile
| | - Valeria Candia
- Department of Cell Biology, Faculty of Biological Sciences, Universidad de Concepción, Concepción, Chile
- Grupo de Procesos en Biología del Desarrollo (GDeP), Faculty of Biological Sciences, Universidad de Concepción, Concepción, Chile
| | - Yannis Kalaidzidis
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Marino Zerial
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Hernán Morales-Navarrete
- Department of Systems Biology of Development, University of Konstanz, Konstanz, Germany.
- Facultad de Ciencias Técnicas, Universidad Internacional Del Ecuador UIDE, Quito, Ecuador.
| | - Fabián Segovia-Miranda
- Department of Cell Biology, Faculty of Biological Sciences, Universidad de Concepción, Concepción, Chile.
- Grupo de Procesos en Biología del Desarrollo (GDeP), Faculty of Biological Sciences, Universidad de Concepción, Concepción, Chile.
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5
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Hartmann J, Mayor R. Self-organized collective cell behaviors as design principles for synthetic developmental biology. Semin Cell Dev Biol 2023; 141:63-73. [PMID: 35450765 DOI: 10.1016/j.semcdb.2022.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Accepted: 04/12/2022] [Indexed: 10/18/2022]
Abstract
Over the past two decades, molecular cell biology has graduated from a mostly analytic science to one with substantial synthetic capability. This success is built on a deep understanding of the structure and function of biomolecules and molecular mechanisms. For synthetic biology to achieve similar success at the scale of tissues and organs, an equally deep understanding of the principles of development is required. Here, we review some of the central concepts and recent progress in tissue patterning, morphogenesis and collective cell migration and discuss their value for synthetic developmental biology, emphasizing in particular the power of (guided) self-organization and the role of theoretical advances in making developmental insights applicable in synthesis.
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Affiliation(s)
- Jonas Hartmann
- Department of Cell and Developmental Biology, University College London, Gower Street, London WC1E 6BT, UK.
| | - Roberto Mayor
- Department of Cell and Developmental Biology, University College London, Gower Street, London WC1E 6BT, UK.
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6
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Prahl LS, Viola JM, Liu J, Hughes AJ. The developing murine kidney actively negotiates geometric packing conflicts to avoid defects. Dev Cell 2023; 58:110-120.e5. [PMID: 36693318 PMCID: PMC9924533 DOI: 10.1016/j.devcel.2022.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 10/17/2022] [Accepted: 12/20/2022] [Indexed: 01/24/2023]
Abstract
The physiological functions of several organs rely on branched epithelial tubule networks bearing specialized structures for secretion, gas exchange, or filtration. Little is known about conflicts in development between building enough tubules for adequate function and geometric constraints imposed by organ size. We show that the mouse embryonic kidney epithelium negotiates a physical packing conflict between increasing tubule tip numbers through branching and limited organ surface area. Through imaging of whole kidney explants, combined with computational and soft material modeling of tubule families, we identify six possible geometric packing phases, including two defective ones. Experiments in explants show that a radially oriented tension on tubule families is necessary and sufficient for them to switch to a vertical packing arrangement that increases surface tip density while avoiding defects. These results reveal developmental contingencies in response to physical limitations and create a framework for classifying congenital kidney defects.
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Affiliation(s)
- Louis S Prahl
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - John M Viola
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jiageng Liu
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Alex J Hughes
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Cell & Developmental Biology, University of Pennsylvania, Philadelphia, PA 19104, USA; Institute for Regenerative Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
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7
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Kondo S. The present and future of Turing models in developmental biology. Development 2022; 149:286110. [PMID: 36533582 DOI: 10.1242/dev.200974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The Turing model (or reaction-diffusion model), first published in 1952, is a mathematical model that can account for autonomy in the morphogenesis of organisms. Although initially controversial, the model has gradually gained wider acceptance among experimental embryologists due to the accumulation of experimental data to support it. More recently, this model and others based on it have been used not only to explain biological phenomena conceptually but also as working hypotheses for molecular-level experiments and as internal components of more-complex 3D models. In this Spotlight, I will provide a personal perspective from an experimental biologist on some of the recent developments of the Turing model.
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Affiliation(s)
- Shigeru Kondo
- Osaka University, Faculty of Frontia Bioscience, Osaka 565-0871, Japan
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8
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Knobloch E, Yochelis A. Instability mechanisms of repelling peak solutions in a multi-variable activator-inhibitor system. CHAOS (WOODBURY, N.Y.) 2022; 32:123129. [PMID: 36587350 DOI: 10.1063/5.0125535] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 11/15/2022] [Indexed: 06/17/2023]
Abstract
We study the linear stability properties of spatially localized single- and multi-peak states generated in a subcritical Turing bifurcation in the Meinhardt model of branching. In one spatial dimension, these states are organized in a foliated snaking structure owing to peak-peak repulsion but are shown to be all linearly unstable, with the number of unstable modes increasing with the number of peaks present. Despite this, in two spatial dimensions, direct numerical simulations reveal the presence of stable single- and multi-spot states whose properties depend on the repulsion from nearby spots as well as the shape of the domain and the boundary conditions imposed thereon. Front propagation is shown to trigger the growth of new spots while destabilizing others. The results indicate that multi-variable models may support new types of behavior that are absent from typical two-variable models.
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Affiliation(s)
- Edgar Knobloch
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - Arik Yochelis
- Department of Solar Energy and Environmental Physics, Swiss Institute for Dryland Environmental and Energy Research, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Midreshet Ben-Gurion 8499000, Israel
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9
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Paramore SV, Goodwin K, Nelson CM. How to build an epithelial tree. Phys Biol 2022; 19. [DOI: 10.1088/1478-3975/ac9e38] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 10/27/2022] [Indexed: 11/23/2022]
Abstract
Abstract
Nature has evolved a variety of mechanisms to build epithelial trees of diverse architectures within different organs and across species. Epithelial trees are elaborated through branch initiation and extension, and their morphogenesis ends with branch termination. Each of these steps of the branching process can be driven by the actions of epithelial cells themselves (epithelial-intrinsic mechanisms) or by the cells of their surrounding tissues (epithelial-extrinsic mechanisms). Here, we describe examples of how these mechanisms drive each stage of branching morphogenesis, drawing primarily from studies of the lung, kidney, salivary gland, mammary gland, and pancreas, all of which contain epithelial trees that form through collective cell behaviors. Much of our understanding of epithelial branching comes from experiments using mice, but we also include examples here from avian and reptilian models. Throughout, we highlight how distinct mechanisms are employed in different organs and species to build epithelial trees. We also highlight how similar morphogenetic motifs are used to carry out conserved developmental programs or repurposed to support novel ones. Understanding the unique strategies used by nature to build branched epithelia from across the tree of life can help to inspire creative solutions to problems in tissue engineering and regenerative medicine.
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10
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Kalot R, Mhanna R, Talhouk R. Organ-on-a-chip platforms as novel advancements for studying heterogeneity, metastasis, and drug efficacy in breast cancer. Pharmacol Ther 2022; 237:108156. [PMID: 35150784 DOI: 10.1016/j.pharmthera.2022.108156] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 01/20/2022] [Accepted: 02/04/2022] [Indexed: 12/23/2022]
Abstract
Breast cancer has the highest cancer incidence rate in women worldwide. Therapies for breast cancer have shown high success rates, yet many cases of recurrence and drug resistance are still reported. Developing innovative strategies for studying breast cancer may improve therapeutic outcomes of the disease by providing better insight into the associated molecular mechanisms. A novel advancement in breast cancer research is the utilization of organ-on-a-chip (OOAC) technology to establish in vitro physiologically relevant breast cancer biomimetic models. This emerging technology combines microfluidics and tissue culturing methods to establish organ-specific micro fabricated culture models. Here, we shed light on the advantages of OOAC platforms over conventional in vivo and in vitro models in terms of mimicking tissue heterogeneity, disease progression, and facilitating pharmacological drug testing with a focus on models of the mammary gland in both normal and breast cancer states. By highlighting the various designs and applications of the breast-on-a-chip platforms, we show that the latter propose means to facilitate breast cancer-related studies and provide an efficient approach for therapeutic drug screening in vitro.
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Affiliation(s)
- Rita Kalot
- Department of Biology, Faculty of Arts and Sciences, American University of Beirut, Beirut, Beirut 1107 2020, Lebanon
| | - Rami Mhanna
- Department of Biomedical Engineering, Maroun Semaan Faculty of Engineering and Architecture, American University of Beirut, Beirut, Beirut 1107 2020, Lebanon
| | - Rabih Talhouk
- Department of Biology, Faculty of Arts and Sciences, American University of Beirut, Beirut, Beirut 1107 2020, Lebanon.
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11
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Röck R, Rizzo L, Lienkamp SS. Kidney Development: Recent Insights from Technological Advances. Physiology (Bethesda) 2022; 37:0. [PMID: 35253460 DOI: 10.1152/physiol.00041.2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The kidney is a complex organ, and how it forms is a fascinating process. New technologies, such as single-cell transcriptomics, and enhanced imaging modalities are offering new approaches to understand the complex and intertwined processes during embryonic kidney development.
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Affiliation(s)
- Ruth Röck
- Institute of Anatomy, University of Zurich, Zurich, Switzerland.,Swiss National Centres of Competence in Research (NCCR) Kidney Control of Homeostasis (Kidney.CH), Zurich, Switzerland
| | - Ludovica Rizzo
- Institute of Anatomy, University of Zurich, Zurich, Switzerland.,Swiss National Centres of Competence in Research (NCCR) Kidney Control of Homeostasis (Kidney.CH), Zurich, Switzerland.,PhD program "Molecular and Translational Biomedicine," Life Science Zurich Graduate School, Zurich, Switzerland
| | - Soeren S Lienkamp
- Institute of Anatomy, University of Zurich, Zurich, Switzerland.,Swiss National Centres of Competence in Research (NCCR) Kidney Control of Homeostasis (Kidney.CH), Zurich, Switzerland
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12
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Painter KJ, Ptashnyk M, Headon DJ. Systems for intricate patterning of the vertebrate anatomy. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2021; 379:20200270. [PMID: 34743605 PMCID: PMC8580425 DOI: 10.1098/rsta.2020.0270] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/11/2021] [Indexed: 05/05/2023]
Abstract
Periodic patterns form intricate arrays in the vertebrate anatomy, notably the hair and feather follicles of the skin, but also internally the villi of the gut and the many branches of the lung, kidney, mammary and salivary glands. These tissues are composite structures, being composed of adjoined epithelium and mesenchyme, and the patterns that arise within them require interaction between these two tissue layers. In embryonic development, cells change both their distribution and state in a periodic manner, defining the size and relative positions of these specialized structures. Their placement is determined by simple spacing mechanisms, with substantial evidence pointing to a variety of local enhancement/lateral inhibition systems underlying the breaking of symmetry. The nature of the cellular processes involved, however, has been less clear. While much attention has focused on intercellular soluble signals, such as protein growth factors, experimental evidence has grown for contributions of cell movement or mechanical forces to symmetry breaking. In the mesenchyme, unlike the epithelium, cells may move freely and can self-organize into aggregates by chemotaxis, or through generation and response to mechanical strain on their surrounding matrix. Different modes of self-organization may coexist, either coordinated into a single system or with hierarchical relationships. Consideration of a broad range of distinct biological processes is required to advance understanding of biological pattern formation. This article is part of the theme issue 'Recent progress and open frontiers in Turing's theory of morphogenesis'.
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Affiliation(s)
- Kevin J. Painter
- Dipartimento Interateneo di Scienze, Progetto e Politiche del Territorio, Politecnico di Torino, Torino, Italy
| | - Mariya Ptashnyk
- School of Mathematical and Computer Sciences and Maxwell Institute, Heriot-Watt University, Edinburgh, UK
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13
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Bägli DJ. An Imperative for Discovery Advances in Congenital Anomalies of the External Genitalia. Urology 2021; 161:1-3. [PMID: 34843747 DOI: 10.1016/j.urology.2021.11.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 11/13/2021] [Indexed: 11/19/2022]
Affiliation(s)
- Darius J Bägli
- Departments of Surgery (Urology) & Physiology, University of Toronto, and The Hospital For Sick Children & Research Institute, Divisions of Urology & Developmental and Stem cell Biology, Toronto, Ontario, Canada..
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14
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Cook B, Combes A, Little M, Osborne JM. Modelling Cellular Interactions and Dynamics During Kidney Morphogenesis. Bull Math Biol 2021; 84:8. [PMID: 34837548 DOI: 10.1007/s11538-021-00968-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 11/02/2021] [Indexed: 10/19/2022]
Abstract
Kidney disease and renal disorders account for a significant proportion of health complications in mid-late adulthood worldwide. Many renal deficiencies are due to improper formation of the kidneys before birth, which are caused by disorders in the developmental process that arise from genetic and/or environmental factors. Mathematical modelling can help build on experimental knowledge to increase our understanding of the complexities of kidney organogenesis. In this paper, we present a discrete cell-based model of kidney development. Specifically, we model the tip of the developing ureteric tree to investigate the behaviours of cap mesenchyme cells which are required to sustain ureteric tip growth. We find that spatial regulation of the differentiation of cap mesenchyme cells through cellular signalling is sufficient to ensure robust ureteric tip development. Additionally, we find that increased adhesion interactions between cap mesenchyme cells and the ureteric tip surface can lead to a more stable tip-cap unit. Our analysis of the various processes on this scale highlights essential components for healthy kidney growth and provides insight into mechanisms to be studied further in order to replicate the process in vitro.
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Affiliation(s)
- Blake Cook
- School of Mathematics and Statistics, University of Melbourne, Victoria, 3010, Australia.,Institute of Metabolism and Systems Research, College of Medical and Dental Science, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Alex Combes
- Department of Anatomy and Developmental Biology, and Stem Cells and Development Program, Monash Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Melissa Little
- Murdoch Children's Research Institute, Flemington Rd, Parkville, VIC, 3052, Australia.,Department of Pediatrics, University of Melbourne, Melbourne, VIC, 3010, Australia
| | - James M Osborne
- School of Mathematics and Statistics, University of Melbourne, Victoria, 3010, Australia.
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15
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Uçar MC, Kamenev D, Sunadome K, Fachet D, Lallemend F, Adameyko I, Hadjab S, Hannezo E. Theory of branching morphogenesis by local interactions and global guidance. Nat Commun 2021; 12:6830. [PMID: 34819507 PMCID: PMC8613190 DOI: 10.1038/s41467-021-27135-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 11/03/2021] [Indexed: 12/14/2022] Open
Abstract
Branching morphogenesis governs the formation of many organs such as lung, kidney, and the neurovascular system. Many studies have explored system-specific molecular and cellular regulatory mechanisms, as well as self-organizing rules underlying branching morphogenesis. However, in addition to local cues, branched tissue growth can also be influenced by global guidance. Here, we develop a theoretical framework for a stochastic self-organized branching process in the presence of external cues. Combining analytical theory with numerical simulations, we predict differential signatures of global vs. local regulatory mechanisms on the branching pattern, such as angle distributions, domain size, and space-filling efficiency. We find that branch alignment follows a generic scaling law determined by the strength of global guidance, while local interactions influence the tissue density but not its overall territory. Finally, using zebrafish innervation as a model system, we test these key features of the model experimentally. Our work thus provides quantitative predictions to disentangle the role of different types of cues in shaping branched structures across scales.
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Affiliation(s)
- Mehmet Can Uçar
- Institute of Science and Technology Austria, Am Campus 1, 3400, Klosterneuburg, Austria.
| | - Dmitrii Kamenev
- Department of Neuroscience, Karolinska Institutet, 17177, Stockholm, Sweden
| | - Kazunori Sunadome
- Department of Physiology and Pharmacology, Karolinska Institutet, 17177, Stockholm, Sweden
| | - Dominik Fachet
- Institute of Science and Technology Austria, Am Campus 1, 3400, Klosterneuburg, Austria
- IRI Life Sciences, Humboldt-Universität zu Berlin, 10115, Berlin, Germany
| | - Francois Lallemend
- Department of Neuroscience, Karolinska Institutet, 17177, Stockholm, Sweden
- Ming-Wai Lau Centre for Reparative Medicine, Stockholm node, Karolinska Institutet, Stockholm, Sweden
| | - Igor Adameyko
- Department of Physiology and Pharmacology, Karolinska Institutet, 17177, Stockholm, Sweden
- Department of Neuroimmunology, Center for Brain Research, Medical University of Vienna, 1090, Vienna, Austria
| | - Saida Hadjab
- Department of Neuroscience, Karolinska Institutet, 17177, Stockholm, Sweden.
| | - Edouard Hannezo
- Institute of Science and Technology Austria, Am Campus 1, 3400, Klosterneuburg, Austria.
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16
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Exploiting the fundamentals of biological organization for the advancement of biofabrication. Curr Opin Biotechnol 2021; 74:42-54. [PMID: 34798447 DOI: 10.1016/j.copbio.2021.10.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/26/2021] [Accepted: 10/14/2021] [Indexed: 12/12/2022]
Abstract
The field of biofabrication continues to progress, offering higher levels of spatial control, reproducibility, and functionality. However, we remain far from recapitulating what nature has achieved. Biological systems such as tissues and organs are assembled from the bottom-up through coordinated supramolecular and cellular processes that result in their remarkable structures and functionalities. In this perspective, we propose that incorporating such biological assembling mechanisms within fabrication techniques, offers an opportunity to push the boundaries of biofabrication. We dissect these mechanisms into distinct biological organization principles (BOPs) including self-assembly, compartmentalization, diffusion-reaction, disorder-to-order transitions, and out-of-equilibrium processes. We highlight recent work demonstrating the viability and potential of these approaches to enhance scalability, reproducibility, vascularization, and biomimicry; as well as current challenges to overcome.
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17
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Non-thermal atmospheric pressure plasma activates Wnt/β-catenin signaling in dermal papilla cells. Sci Rep 2021; 11:16125. [PMID: 34373562 PMCID: PMC8352944 DOI: 10.1038/s41598-021-95650-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 07/28/2021] [Indexed: 12/03/2022] Open
Abstract
There is an unmet need for novel, non-pharmacological therapeutics to treat alopecia. Recent studies have shown the potential biological benefits of non-thermal atmospheric pressure plasma (NTAPP), including wound healing, angiogenesis, and the proliferation of stem cells. We hypothesized that NTAPP might have a stimulatory effect on hair growth or regeneration. We designed an NTAPP-generating apparatus which is applicable to in vitro and in vivo experiments. The human dermal papilla (DP) cells, isolated fresh hair follicles, and mouse back skin were exposed with the NTAPP. Biological outcomes were measured using RNA-sequencing, RT-PCR, Western blots, and immunostaining. The NTAPP treatment increased the expression levels of Wnt/β-catenin pathway-related genes (AMER3, CCND1, LEF1, and LRG1) and proteins (β-catenin, p-GSK3β, and cyclin D1) in human DP cells. In contrast, inhibitors of Wnt/β-catenin signaling, endo-IWR1 and IWP2, attenuated the levels of cyclin D1, p-GSK3β, and β-catenin proteins induced by NTAPP. Furthermore, we observed that NTAPP induced the activation of β-catenin in DP cells of hair follicles and the mRNA levels of target genes of the β-catenin signaling pathway (CCND1, LEF1, and TCF4). NTAPP-treated mice exhibited markedly increased anagen induction, hair growth, and the protein levels of β-catenin, p-GSK3β, p-AKT, and cyclin D1. NTAPP stimulates hair growth via activation of the Wnt/β-catenin signaling pathway in DP cells. These findings collectively suggest that NTAPP may be a potentially safe and non-pharmacological therapeutic intervention for alopecia.
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18
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El Agha E, Iber D, Warburton D. Editorial: Branching Morphogenesis During Embryonic Lung Development. Front Cell Dev Biol 2021; 9:728954. [PMID: 34322494 PMCID: PMC8311350 DOI: 10.3389/fcell.2021.728954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 06/22/2021] [Indexed: 11/21/2022] Open
Affiliation(s)
- Elie El Agha
- Department of Internal Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), Institute for Lung Health (ILH), Cardio-Pulmonary Institute (CPI), Member of the German Center for Lung Research (DZL), Justus-Liebig University Giessen, Giessen, Germany
| | - Dagmar Iber
- Swiss Institute of Bioinformatics (SIB), ETH Zürich, Basel, Switzerland
| | - David Warburton
- Developmental Biology and Regenerative Medicine Program, Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, CA, United States
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19
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Abstract
Morphogenesis is one of the most remarkable examples of biological pattern formation. Despite substantial progress in the field, we still do not understand the organizational principles responsible for the robust convergence of the morphogenesis process across scales to form viable organisms under variable conditions. Achieving large-scale coordination requires feedback between mechanical and biochemical processes, spanning all levels of organization and relating the emerging patterns with the mechanisms driving their formation. In this review, we highlight the role of mechanics in the patterning process, emphasizing the active and synergistic manner in which mechanical processes participate in developmental patterning rather than merely following a program set by biochemical signals. We discuss the value of applying a coarse-grained approach toward understanding this complex interplay, which considers the large-scale dynamics and feedback as well as complementing the reductionist approach focused on molecular detail. A central challenge in this approach is identifying relevant coarse-grained variables and developing effective theories that can serve as a basis for an integrated framework for understanding this remarkable pattern-formation process. Expected final online publication date for the Annual Review of Cell and Developmental Biology, Volume 37 is October 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- Yonit Maroudas-Sacks
- Department of Physics, Technion-Israel Institute of Technology, Haifa 32000, Israel;
| | - Kinneret Keren
- Department of Physics, Technion-Israel Institute of Technology, Haifa 32000, Israel; .,Network Biology Research Laboratories and The Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa 32000, Israel
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20
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Lang C, Conrad L, Iber D. Organ-Specific Branching Morphogenesis. Front Cell Dev Biol 2021; 9:671402. [PMID: 34150767 PMCID: PMC8212048 DOI: 10.3389/fcell.2021.671402] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 05/06/2021] [Indexed: 01/09/2023] Open
Abstract
A common developmental process, called branching morphogenesis, generates the epithelial trees in a variety of organs, including the lungs, kidneys, and glands. How branching morphogenesis can create epithelial architectures of very different shapes and functions remains elusive. In this review, we compare branching morphogenesis and its regulation in lungs and kidneys and discuss the role of signaling pathways, the mesenchyme, the extracellular matrix, and the cytoskeleton as potential organ-specific determinants of branch position, orientation, and shape. Identifying the determinants of branch and organ shape and their adaptation in different organs may reveal how a highly conserved developmental process can be adapted to different structural and functional frameworks and should provide important insights into epithelial morphogenesis and developmental disorders.
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Affiliation(s)
- Christine Lang
- Department of Biosystems, Science and Engineering, ETH Zürich, Basel, Switzerland.,Swiss Institute of Bioinformatics, Basel, Switzerland
| | - Lisa Conrad
- Department of Biosystems, Science and Engineering, ETH Zürich, Basel, Switzerland.,Swiss Institute of Bioinformatics, Basel, Switzerland
| | - Dagmar Iber
- Department of Biosystems, Science and Engineering, ETH Zürich, Basel, Switzerland.,Swiss Institute of Bioinformatics, Basel, Switzerland
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21
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Puelles VG, Combes AN, Bertram JF. Clearly imaging and quantifying the kidney in 3D. Kidney Int 2021; 100:780-786. [PMID: 34089762 DOI: 10.1016/j.kint.2021.04.042] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 04/09/2021] [Accepted: 04/14/2021] [Indexed: 12/16/2022]
Abstract
For decades, measurements of kidney microanatomy using 2-dimensional sections has provided us with a detailed knowledge of kidney morphology under physiological and pathological conditions. However, the rapid development of tissue clearing methods in recent years, in combination with the development of novel 3-dimensional imaging modalities have provided new insights into kidney structure and function. This review article describes a range of novel insights into kidney development and disease obtained recently using these new methodological approaches. For example, in the developing kidney these approaches have provided new understandings of ureteric branching morphogenesis, nephron progenitor cell proliferation and commitment, interactions between ureteric tip cells and nephron progenitor cells, and the establishment of nephron segmentation. In whole adult mouse kidneys, tissue clearing combined with light sheet microscopy can image and quantify the total number of glomeruli, a major breakthrough in the field. Similar approaches have provided new insights into the structure of the renal vasculature and innervation, tubulointerstitial remodeling, podocyte loss and hypertrophy, cyst formation, the evolution of cellular crescents, and the structure of the glomerular filtration barrier. Many more advances in the understanding of kidney biology and pathology can be expected as additional clearing and imaging techniques are developed and adopted by more investigators.
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Affiliation(s)
- Victor G Puelles
- III. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Department of Anatomy and Developmental Biology, and Stem Cells and Development Program, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia
| | - Alexander N Combes
- Department of Anatomy and Developmental Biology, and Stem Cells and Development Program, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia
| | - John F Bertram
- Department of Anatomy and Developmental Biology, and Stem Cells and Development Program, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Australia.
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22
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Morales JS, Raspopovic J, Marcon L. From embryos to embryoids: How external signals and self-organization drive embryonic development. Stem Cell Reports 2021; 16:1039-1050. [PMID: 33979592 PMCID: PMC8185431 DOI: 10.1016/j.stemcr.2021.03.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 12/15/2022] Open
Abstract
Embryonic development has been traditionally seen as an inductive process directed by exogenous maternal inputs and extra-embryonic signals. Increasing evidence, however, is showing that, in addition to exogenous signals, the development of the embryo involves endogenous self-organization. Recently, this self-organizing potential has been highlighted by a number of stem cell models known as embryoids that can recapitulate different aspects of embryogenesis in vitro. Here, we review the self-organizing behaviors observed in different embryoid models and seek to reconcile this new evidence with classical knowledge of developmental biology. This analysis leads to reexamine embryonic development as a guided self-organizing process, where patterning and morphogenesis are controlled by a combination of exogenous signals and endogenous self-organization. Finally, we discuss the multidisciplinary approach required to investigate the genetic and cellular basis of self-organization.
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Affiliation(s)
- J Serrano Morales
- Andalusian Center for Developmental Biology (CABD), CSIC - UPO - JA, Seville, Spain
| | - Jelena Raspopovic
- Andalusian Center for Developmental Biology (CABD), CSIC - UPO - JA, Seville, Spain.
| | - Luciano Marcon
- Andalusian Center for Developmental Biology (CABD), CSIC - UPO - JA, Seville, Spain.
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23
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Conrad L, Runser SVM, Fernando Gómez H, Lang CM, Dumond MS, Sapala A, Schaumann L, Michos O, Vetter R, Iber D. The biomechanical basis of biased epithelial tube elongation in lung and kidney development. Development 2021; 148:261770. [PMID: 33946098 PMCID: PMC8126414 DOI: 10.1242/dev.194209] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 03/16/2021] [Indexed: 01/16/2023]
Abstract
During lung development, epithelial branches expand preferentially in a longitudinal direction. This bias in outgrowth has been linked to a bias in cell shape and in the cell division plane. How this bias arises is unknown. Here, we show that biased epithelial outgrowth occurs independent of the surrounding mesenchyme, of preferential turnover of the extracellular matrix at the bud tips and of FGF signalling. There is also no evidence for actin-rich filopodia at the bud tips. Rather, we find epithelial tubes to be collapsed during early lung and kidney development, and we observe fluid flow in the narrow tubes. By simulating the measured fluid flow inside segmented narrow epithelial tubes, we show that the shear stress levels on the apical surface are sufficient to explain the reported bias in cell shape and outgrowth. We use a cell-based vertex model to confirm that apical shear forces, unlike constricting forces, can give rise to both the observed bias in cell shapes and tube elongation. We conclude that shear stress may be a more general driver of biased tube elongation beyond its established role in angiogenesis. This article has an associated 'The people behind the papers' interview.
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Affiliation(s)
- Lisa Conrad
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Steve Vincent Maurice Runser
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Harold Fernando Gómez
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Christine Michaela Lang
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Mathilde Sabine Dumond
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Aleksandra Sapala
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Laura Schaumann
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Odyssé Michos
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Roman Vetter
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
| | - Dagmar Iber
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Mattenstraße 26, 4058 Basel, Switzerland.,Swiss Institute of Bioinformatics (SIB), Mattenstraße 26, 4058 Basel, Switzerland
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24
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Yochelis A. The nonlinear initiation of side-branching by activator-inhibitor-substrate (Turing) morphogenesis. CHAOS (WOODBURY, N.Y.) 2021; 31:051102. [PMID: 34240921 DOI: 10.1063/5.0050630] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 04/21/2021] [Indexed: 06/13/2023]
Abstract
An understanding of the underlying mechanism of side-branching is paramount in controlling and/or therapeutically treating mammalian organs, such as lungs, kidneys, and glands. Motivated by an activator-inhibitor-substrate approach that is conjectured to dominate the initiation of side-branching in a pulmonary vascular pattern, I demonstrate a distinct transverse front instability in which new fingers grow out of an oscillatory breakup dynamics at the front line without any typical length scale. These two features are attributed to unstable peak solutions in 1D that subcritically emanate from Turing bifurcation and that exhibit repulsive interactions. The results are based on a bifurcation analysis and numerical simulations and provide a potential strategy toward also developing a framework of side-branching for other biological systems, such as plant roots and cellular protrusions.
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Affiliation(s)
- Arik Yochelis
- Department of Solar Energy and Environmental Physics, Blaustein Institutes for Desert Research (BIDR), Ben-Gurion University of the Negev, Sede Boqer Campus, Midreshet Ben-Gurion 8499000, Israel and Department of Physics, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
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25
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Lenne PF, Munro E, Heemskerk I, Warmflash A, Bocanegra-Moreno L, Kishi K, Kicheva A, Long Y, Fruleux A, Boudaoud A, Saunders TE, Caldarelli P, Michaut A, Gros J, Maroudas-Sacks Y, Keren K, Hannezo E, Gartner ZJ, Stormo B, Gladfelter A, Rodrigues A, Shyer A, Minc N, Maître JL, Di Talia S, Khamaisi B, Sprinzak D, Tlili S. Roadmap for the multiscale coupling of biochemical and mechanical signals during development. Phys Biol 2021; 18. [PMID: 33276350 PMCID: PMC8380410 DOI: 10.1088/1478-3975/abd0db] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 12/04/2020] [Indexed: 12/12/2022]
Abstract
The way in which interactions between mechanics and biochemistry lead to the emergence of complex cell and tissue organization is an old question that has recently attracted renewed interest from biologists, physicists, mathematicians and computer scientists. Rapid advances in optical physics, microscopy and computational image analysis have greatly enhanced our ability to observe and quantify spatiotemporal patterns of signalling, force generation, deformation, and flow in living cells and tissues. Powerful new tools for genetic, biophysical and optogenetic manipulation are allowing us to perturb the underlying machinery that generates these patterns in increasingly sophisticated ways. Rapid advances in theory and computing have made it possible to construct predictive models that describe how cell and tissue organization and dynamics emerge from the local coupling of biochemistry and mechanics. Together, these advances have opened up a wealth of new opportunities to explore how mechanochemical patterning shapes organismal development. In this roadmap, we present a series of forward-looking case studies on mechanochemical patterning in development, written by scientists working at the interface between the physical and biological sciences, and covering a wide range of spatial and temporal scales, organisms, and modes of development. Together, these contributions highlight the many ways in which the dynamic coupling of mechanics and biochemistry shapes biological dynamics: from mechanoenzymes that sense force to tune their activity and motor output, to collectives of cells in tissues that flow and redistribute biochemical signals during development.
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Affiliation(s)
- Pierre-François Lenne
- Aix-Marseille University, CNRS, IBDM, Turing Center for Living Systems, Marseille, France
| | - Edwin Munro
- Department of Molecular Genetics and Cell Biology, University of Chicago, Chicago, IL 60637, United States of America
| | - Idse Heemskerk
- Department of Cell & Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, United States of America
| | - Aryeh Warmflash
- Department of Biosciences and Bioengineering, Rice University, Houston, TX, 77005, United States of America
| | | | - Kasumi Kishi
- IST Austria, Am Campus 1, 3400 Klosterneuburg, Austria
| | - Anna Kicheva
- IST Austria, Am Campus 1, 3400 Klosterneuburg, Austria
| | - Yuchen Long
- Reproduction et Dévelopement des Plantes, Université de Lyon, École normale supérieure de Lyon, Université Claude Bernard Lyon 1, INRAe, CNRS, 69364 Lyon Cedex 07, France
| | - Antoine Fruleux
- Reproduction et Dévelopement des Plantes, Université de Lyon, École normale supérieure de Lyon, Université Claude Bernard Lyon 1, INRAe, CNRS, 69364 Lyon Cedex 07, France.,LadHyX, CNRS, Ecole polytechnique, Institut Polytechnique de Paris, 91128 Palaiseau Cedex, France
| | - Arezki Boudaoud
- Reproduction et Dévelopement des Plantes, Université de Lyon, École normale supérieure de Lyon, Université Claude Bernard Lyon 1, INRAe, CNRS, 69364 Lyon Cedex 07, France.,LadHyX, CNRS, Ecole polytechnique, Institut Polytechnique de Paris, 91128 Palaiseau Cedex, France
| | - Timothy E Saunders
- Mechanobiology Institute, National University of Singapore, 117411, Singapore
| | - Paolo Caldarelli
- Cellule Pasteur UPMC, Sorbonne Université, rue du Dr Roux, 75015 Paris, France.,Department of Developmental and Stem Cell Biology Institut Pasteur, 75724 Paris, Cedex 15, France.,CNRS UMR3738, 75015 Paris, France
| | - Arthur Michaut
- Department of Developmental and Stem Cell Biology Institut Pasteur, 75724 Paris, Cedex 15, France.,CNRS UMR3738, 75015 Paris, France
| | - Jerome Gros
- Department of Developmental and Stem Cell Biology Institut Pasteur, 75724 Paris, Cedex 15, France.,CNRS UMR3738, 75015 Paris, France
| | - Yonit Maroudas-Sacks
- Department of Physics, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Kinneret Keren
- Department of Physics, Technion-Israel Institute of Technology, Haifa 32000, Israel.,Network Biology Research Laboratories and The Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Edouard Hannezo
- Institute of Science and Technology Austria, Am Campus 1, 3400 Klosterneuburg, Austria
| | - Zev J Gartner
- Department of Pharmaceutical Chemistry, University of California, San Francisco, 600 16th St. Box 2280, San Francisco, CA 94158, United States of America
| | - Benjamin Stormo
- Department of Biology, University of North Carolina-Chapel Hill, Chapel Hill, NC 27599 United States of America
| | - Amy Gladfelter
- Department of Biology, University of North Carolina-Chapel Hill, Chapel Hill, NC 27599 United States of America
| | - Alan Rodrigues
- Laboratory of Morphogenesis, The Rockefeller University, 1230 York Avenue, New York, NY 10065, United States of America
| | - Amy Shyer
- Laboratory of Morphogenesis, The Rockefeller University, 1230 York Avenue, New York, NY 10065, United States of America
| | - Nicolas Minc
- Institut Jacques Monod, Université de Paris, CNRS UMR7592, 15 rue Hélène Brion, 75205 Paris Cedex 13, France
| | - Jean-Léon Maître
- Institut Curie, PSL Research University, Sorbonne Université, CNRS UMR3215, INSERM U934, Paris, France
| | - Stefano Di Talia
- Department of Cell Biology, Duke University Medical Center, Durham NC 27710, United States of America
| | - Bassma Khamaisi
- School of Neurobiology, Biochemistry and Biophysics, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| | - David Sprinzak
- School of Neurobiology, Biochemistry and Biophysics, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Sham Tlili
- Aix-Marseille University, CNRS, IBDM, Turing Center for Living Systems, Marseille, France
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26
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Abstract
Branching morphogenesis generates epithelial trees which facilitate gas exchange, filtering, as well as secretion processes with their large surface to volume ratio. In this review, we focus on the developmental mechanisms that control the early stages of lung branching morphogenesis. Lung branching morphogenesis involves the stereotypic, recurrent definition of new branch points, subsequent epithelial budding, and lung tube elongation. We discuss current models and experimental evidence for each of these steps. Finally, we discuss the role of the mesenchyme in determining the organ-specific shape.
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Affiliation(s)
- Dagmar Iber
- Department of Biosystems, Science and Engineering (D-BSSE), ETH Zurich, Basel, Switzerland; Swiss Institute of Bioinformatics (SIB), Basel, Switzerland.
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27
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Abstract
The kidney plays an integral role in filtering the blood-removing metabolic by-products from the body and regulating blood pressure. This requires the establishment of large numbers of efficient and specialized blood filtering units (nephrons) that incorporate a system for vascular exchange and nutrient reabsorption as well as a collecting duct system to remove waste (urine) from the body. Kidney development is a dynamic process which generates these structures through a delicately balanced program of self-renewal and commitment of nephron progenitor cells that inhabit a constantly evolving cellular niche at the tips of a branching ureteric "tree." The former cells build the nephrons and the latter the collecting duct system. Maintaining these processes across fetal development is critical for establishing the normal "endowment" of nephrons in the kidney and perturbations to this process are associated both with mutations in integral genes and with alterations to the fetal environment.
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Affiliation(s)
- Ian M Smyth
- Department of Anatomy and Developmental Biology, Department of Biochemistry and Molecular Biology, Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Monash University, Melbourne, VIC, Australia.
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28
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Papakrivopoulou E, Jafree DJ, Dean CH, Long DA. The Biological Significance and Implications of Planar Cell Polarity for Nephrology. Front Physiol 2021; 12:599529. [PMID: 33716764 PMCID: PMC7952641 DOI: 10.3389/fphys.2021.599529] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 02/01/2021] [Indexed: 11/13/2022] Open
Abstract
The orientation of cells in two-dimensional and three-dimensional space underpins how the kidney develops and responds to disease. The process by which cells orientate themselves within the plane of a tissue is termed planar cell polarity. In this Review, we discuss how planar cell polarity and the proteins that underpin it govern kidney organogenesis and pathology. The importance of planar cell polarity and its constituent proteins in multiple facets of kidney development is emphasised, including ureteric bud branching, tubular morphogenesis and nephron maturation. An overview is given of the relevance of planar cell polarity and its proteins for inherited human renal diseases, including congenital malformations with unknown aetiology and polycystic kidney disease. Finally, recent work is described outlining the influence of planar cell polarity proteins on glomerular diseases and highlight how this fundamental pathway could yield a new treatment paradigm for nephrology.
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Affiliation(s)
- Eugenia Papakrivopoulou
- Developmental Biology and Cancer Programme, UCL Great Ormond Street Institute of Child Health, London, United Kingdom.,Department of Internal Medicine and Nephrology, Clinique Saint Jean, Brussels, Belgium
| | - Daniyal J Jafree
- Developmental Biology and Cancer Programme, UCL Great Ormond Street Institute of Child Health, London, United Kingdom.,UCL MB/Ph.D. Programme, Faculty of Medical Science, University College London, London, United Kingdom
| | - Charlotte H Dean
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - David A Long
- Developmental Biology and Cancer Programme, UCL Great Ormond Street Institute of Child Health, London, United Kingdom
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29
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Cai W, Wang Y, Zhang J, Zhang H, Luo T. Multi-scale simulation of early kidney branching morphogenesis. Phys Biol 2021; 18:026005. [PMID: 33395673 DOI: 10.1088/1478-3975/abd844] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
An important feature of the branch morphogenesis during kidney development is the termination of the tips on the outer surface of a kidney. This feature requires the avoidance of the intersection between the tips and existing ducts inside the kidney. Here, we started from a continuous model and implemented the coarse grained rules into a fast and discrete simulations. The ligand-receptor-based Turing mechanism suggests a repulsion that decreases exponentially with distance between interacting branches, preventing the intersection between neighboring branches. We considered this repulsive effect in numerical simulations and successfully reproduce the key features of the experimentally observed branch morphology for an E15.5 kidney. We examine the similarity of several geometrical parameters between the simulation results and experimental observations. The good agreement between the simulations and experiments suggests that the concentration decay caused by the absorption of glial cell line derived neurotrophic factor might be the key factor to affect the geometry in early kidney development.
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Affiliation(s)
- Wenran Cai
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, People's Republic of China
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30
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Li H, Hohenstein P, Kuure S. Embryonic Kidney Development, Stem Cells and the Origin of Wilms Tumor. Genes (Basel) 2021; 12:genes12020318. [PMID: 33672414 PMCID: PMC7926385 DOI: 10.3390/genes12020318] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 02/17/2021] [Accepted: 02/18/2021] [Indexed: 12/23/2022] Open
Abstract
The adult mammalian kidney is a poorly regenerating organ that lacks the stem cells that could replenish functional homeostasis similarly to, e.g., skin or the hematopoietic system. Unlike a mature kidney, the embryonic kidney hosts at least three types of lineage-specific stem cells that give rise to (a) a ureter and collecting duct system, (b) nephrons, and (c) mesangial cells together with connective tissue of the stroma. Extensive interest has been raised towards these embryonic progenitor cells, which are normally lost before birth in humans but remain part of the undifferentiated nephrogenic rests in the pediatric renal cancer Wilms tumor. Here, we discuss the current understanding of kidney-specific embryonic progenitor regulation in the innate environment of the developing kidney and the types of disruptions in their balanced regulation that lead to the formation of Wilms tumor.
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Affiliation(s)
- Hao Li
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, FIN-00014 Helsinki, Finland;
| | - Peter Hohenstein
- Department of Human Genetics, Leiden University Medical Center, 2300 RC Leiden, The Netherlands;
| | - Satu Kuure
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, FIN-00014 Helsinki, Finland;
- GM-Unit, Laboratory Animal Center, Helsinki Institute of Life Science, University of Helsinki, FIN-00014 Helsinki, Finland
- Correspondence: ; Tel.: +358-2941-59395
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31
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Duran-Nebreda S, Pla J, Vidiella B, Piñero J, Conde-Pueyo N, Solé R. Synthetic Lateral Inhibition in Periodic Pattern Forming Microbial Colonies. ACS Synth Biol 2021; 10:277-285. [PMID: 33449631 PMCID: PMC8486170 DOI: 10.1021/acssynbio.0c00318] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Multicellular entities are characterized by intricate spatial patterns, intimately related to the functions they perform. These patterns are often created from isotropic embryonic structures, without external information cues guiding the symmetry breaking process. Mature biological structures also display characteristic scales with repeating distributions of signals or chemical species across space. Many candidate patterning modules have been used to explain processes during development and typically include a set of interacting and diffusing chemicals or agents known as morphogens. Great effort has been put forward to better understand the conditions in which pattern-forming processes can occur in the biological domain. However, evidence and practical knowledge allowing us to engineer symmetry-breaking is still lacking. Here we follow a different approach by designing a synthetic gene circuit in E. coli that implements a local activation long-range inhibition mechanism. The synthetic gene network implements an artificial differentiation process that changes the physicochemical properties of the agents. Using both experimental results and modeling, we show that the proposed system is capable of symmetry-breaking leading to regular spatial patterns during colony growth. Studying how these patterns emerge is fundamental to further our understanding of the evolution of biocomplexity and the role played by self-organization. The artificial system studied here and the engineering perspective on embryogenic processes can help validate developmental theories and identify universal properties underpinning biological pattern formation, with special interest for the area of synthetic developmental biology.
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Affiliation(s)
- Salva Duran-Nebreda
- Institut de Biologia Evolutiva (CSIC-UPF), 08003 Barcelona, Spain
- ICREA-Complex Systems Lab, Universitat Pompeu Fabra, 08003 Barcelona, Spain
- Evolution of Technology Lab, Institut de Biologia Evolutiva (CSIC-UPF), 08003 Barcelona, Spain
| | - Jordi Pla
- Institut de Biologia Evolutiva (CSIC-UPF), 08003 Barcelona, Spain
- ICREA-Complex Systems Lab, Universitat Pompeu Fabra, 08003 Barcelona, Spain
| | - Blai Vidiella
- Institut de Biologia Evolutiva (CSIC-UPF), 08003 Barcelona, Spain
- ICREA-Complex Systems Lab, Universitat Pompeu Fabra, 08003 Barcelona, Spain
| | - Jordi Piñero
- Institut de Biologia Evolutiva (CSIC-UPF), 08003 Barcelona, Spain
- ICREA-Complex Systems Lab, Universitat Pompeu Fabra, 08003 Barcelona, Spain
| | - Nuria Conde-Pueyo
- Institut de Biologia Evolutiva (CSIC-UPF), 08003 Barcelona, Spain
- ICREA-Complex Systems Lab, Universitat Pompeu Fabra, 08003 Barcelona, Spain
| | - Ricard Solé
- Institut de Biologia Evolutiva (CSIC-UPF), 08003 Barcelona, Spain
- ICREA-Complex Systems Lab, Universitat Pompeu Fabra, 08003 Barcelona, Spain
- Santa Fe Institute, 1399 Hyde Park Road, Santa Fe, New Mexico 87501, United States
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32
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Daly AC, Prendergast ME, Hughes AJ, Burdick JA. Bioprinting for the Biologist. Cell 2021; 184:18-32. [PMID: 33417859 DOI: 10.1016/j.cell.2020.12.002] [Citation(s) in RCA: 115] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 10/29/2020] [Accepted: 12/01/2020] [Indexed: 12/30/2022]
Abstract
Building tissues from scratch to explore entirely new cell configurations could revolutionize fundamental understanding in biology. Bioprinting is an emerging technology to do this. Although typically applied to engineer tissues for therapeutic tissue repair or drug screening, there are many opportunities for bioprinting within biology, such as for exploring cellular crosstalk or cellular morphogenesis. The overall goals of this Primer are to provide an overview of bioprinting with the biologist in mind, outline the steps in extrusion bioprinting (the most widely used and accessible technology), and discuss alternative bioprinting technologies and future opportunities for bioprinting in biology.
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Affiliation(s)
- Andrew C Daly
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | | | - Alex J Hughes
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Cell and Developmental Biology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jason A Burdick
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA.
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33
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Martinson WD, Byrne HM, Maini PK. Evaluating snail-trail frameworks for leader-follower behavior with agent-based modeling. Phys Rev E 2020; 102:062417. [PMID: 33466087 DOI: 10.1103/physreve.102.062417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 11/18/2020] [Indexed: 06/12/2023]
Abstract
Branched networks constitute a ubiquitous structure in biology, arising in plants, lungs, and the circulatory system; however, the mechanisms behind their creation are not well understood. A commonly used model for network morphogenesis proposes that sprouts develop through interactions between leader (tip) cells and follower (stalk) cells. In this description, tip cells emerge from existing structures, travel up chemoattractant gradients, and form new networks by guiding the movement of stalk cells. Such dynamics have been mathematically represented by continuum "snail-trail" models in which the tip cell flux contributes to the stalk cell proliferation rate. Although snail-trail models constitute a classical depiction of leader-follower behavior, their accuracy has yet to be evaluated in a rigorous quantitative setting. Here, we extend the snail-trail modeling framework to two spatial dimensions by introducing a novel multiplicative factor to the stalk cell rate equation, which corrects for neglected network creation in directions other than that of the migrating front. Our derivation of this factor demonstrates that snail-trail models are valid descriptions of cell dynamics when chemotaxis dominates cell movement. We confirm that our snail-trail model accurately predicts the dynamics of tip and stalk cells in an existing agent-based model (ABM) for network formation [Pillay et al., Phys. Rev. E 95, 012410 (2017)10.1103/PhysRevE.95.012410]. We also derive conditions for which it is appropriate to use a reduced, one-dimensional snail-trail model to analyze ABM results. Our analysis identifies key metrics for cell migration that may be used to anticipate when simple snail-trail models will accurately describe experimentally observed cell dynamics in network formation.
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Affiliation(s)
- W Duncan Martinson
- Mathematical Institute, University of Oxford, Woodstock Road, Oxford OX2 6GG, United Kingdom
| | - Helen M Byrne
- Mathematical Institute, University of Oxford, Woodstock Road, Oxford OX2 6GG, United Kingdom
| | - Philip K Maini
- Mathematical Institute, University of Oxford, Woodstock Road, Oxford OX2 6GG, United Kingdom
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34
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Stadler HS, Peters CA, Sturm RM, Baker LA, Best CJM, Bird VY, Geller F, Hoshizaki DK, Knudsen TB, Norton JM, Romao RLP, Cohn MJ. Meeting report on the NIDDK/AUA Workshop on Congenital Anomalies of External Genitalia: challenges and opportunities for translational research. J Pediatr Urol 2020; 16:791-804. [PMID: 33097421 PMCID: PMC7885182 DOI: 10.1016/j.jpurol.2020.09.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 09/10/2020] [Accepted: 09/13/2020] [Indexed: 01/02/2023]
Abstract
Congenital anomalies of the external genitalia (CAEG) are a prevalent and serious public health concern with lifelong impacts on the urinary function, sexual health, fertility, tumor development, and psychosocial wellbeing of affected individuals. Complications of treatment are frequent, and data reflecting long-term outcomes in adulthood are limited. To identify a path forward to improve treatments and realize the possibility of preventing CAEG, the National Institute of Diabetes and Digestive and Kidney Diseases and the American Urological Association convened researchers from a range of disciplines to coordinate research efforts to fully understand the different etiologies of these common conditions, subsequent variation in clinical phenotypes, and best practices for long term surgical success. Meeting participants concluded that a central data hub for clinical evaluations, including collection of DNA samples from patients and their parents, and short interviews to determine familial penetrance (small pedigrees), would accelerate research in this field. Such a centralized datahub will advance efforts to develop detailed multi-dimensional phenotyping and will enable access to genome sequence analyses and associated metadata to define the genetic bases for these conditions. Inclusion of tissue samples and integration of clinical studies with basic research using human cells and animal models will advance efforts to identify the developmental mechanisms that are disrupted during development and will add cellular and molecular granularity to phenotyping CAEG. While the discussion focuses heavily on hypospadias, this can be seen as a potential template for other conditions in the realm of CAEG, including cryptorchidism or the exstrophy-epispadias complex. Taken together with long-term clinical follow-up, these data could inform surgical choices and improve likelihood for long-term success.
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Affiliation(s)
- H Scott Stadler
- Department of Skeletal Biology, Shriners Hospital for Children, 3101 SW Sam Jackson Park Road, Portland, OR, Oregon Health & Science University, Department of Orthopaedics and Rehabilitation, Portland, 97239, OR, USA.
| | - Craig A Peters
- Department of Urology, University of Texas Southwestern, 5323 Harry Hines Blvd., Dallas, 75390-9110, TX, USA; Pediatric Urology, Children's Health System Texas, University of Texas Southwestern, Dallas, 75390, TX, USA.
| | - Renea M Sturm
- Department of Urology, Division of Pediatric Urology, University of California Los Angeles, 200 Medical Plaza #170, Los Angeles, 90095, CA, USA
| | - Linda A Baker
- Department of Urology, University of Texas Southwestern, 5323 Harry Hines Blvd., Dallas, 75390-9110, TX, USA
| | - Carolyn J M Best
- American Urological Association, 1000 Corporate Boulevard, Linthicum, 21090, MD, USA
| | - Victoria Y Bird
- Department of Urology, University of Florida, Gainesville, 32610, FL, USA; National Medical Association and Research Group, 5745 SW 75th Street, #507, Gainesville, 32608, FL, USA
| | - Frank Geller
- Department of Epidemiology Research, Statens Serum Institut, 5 Artillerivej, Copenhagen S, DK-2300, Denmark
| | - Deborah K Hoshizaki
- National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, 6707 Democracy Boulevard, Bethesda, 20892, MD, USA
| | - Thomas B Knudsen
- US Environmental Protection Agency, Office of Research and Development, Center for Computational Toxicology and Exposure, Research Triangle Park, 27711, NC, USA
| | - Jenna M Norton
- National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, 6707 Democracy Boulevard, Bethesda, 20892, MD, USA
| | - Rodrigo L P Romao
- Departments of Surgery and Urology, IWK Health Centre, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Martin J Cohn
- Department of Molecular Genetics and Microbiology, Department of Biology, And UF Genetics Institute, University of Florida, PO Box 103610, Gainesville, 32610, FL, USA.
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35
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Groves I, Placzek M, Fletcher AG. Of mitogens and morphogens: modelling Sonic Hedgehog mechanisms in vertebrate development. Philos Trans R Soc Lond B Biol Sci 2020; 375:20190660. [PMID: 32829689 PMCID: PMC7482217 DOI: 10.1098/rstb.2019.0660] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/10/2020] [Indexed: 12/22/2022] Open
Abstract
Sonic Hedgehog (Shh) Is a critical protein in vertebrate development, orchestrating patterning and growth in many developing systems. First described as a classic morphogen that patterns tissues through a spatial concentration gradient, subsequent studies have revealed a more complex mechanism, in which Shh can also regulate proliferation and differentiation. While the mechanism of action of Shh as a morphogen is well understood, it remains less clear how Shh might integrate patterning, proliferation and differentiation in a given tissue, to ultimately direct its morphogenesis. In tandem with experimental studies, mathematical modelling can help gain mechanistic insights into these processes and bridge the gap between Shh-regulated patterning and growth, by integrating these processes into a common theoretical framework. Here, we briefly review the roles of Shh in vertebrate development, focusing on its functions as a morphogen, mitogen and regulator of differentiation. We then discuss the contributions that modelling has made to our understanding of the action of Shh and highlight current challenges in using mathematical models in a quantitative and predictive way. This article is part of a discussion meeting issue 'Contemporary morphogenesis'.
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Affiliation(s)
- Ian Groves
- School of Mathematics and Statistics, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, UK
- Department of Biomedical Science, University of Sheffield, Firth Court, Western Bank, Sheffield, S10 2TN, UK
- Bateson Centre, University of Sheffield, Firth Court, Western Bank, Sheffield, S10 2TN, UK
| | - Marysia Placzek
- Department of Biomedical Science, University of Sheffield, Firth Court, Western Bank, Sheffield, S10 2TN, UK
- Bateson Centre, University of Sheffield, Firth Court, Western Bank, Sheffield, S10 2TN, UK
| | - Alexander G. Fletcher
- School of Mathematics and Statistics, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, UK
- Bateson Centre, University of Sheffield, Firth Court, Western Bank, Sheffield, S10 2TN, UK
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36
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Yu W, Marshall WF, Metzger RJ, Brakeman PR, Morsut L, Lim W, Mostov KE. Simple Rules Determine Distinct Patterns of Branching Morphogenesis. Cell Syst 2020; 9:221-227. [PMID: 31557453 DOI: 10.1016/j.cels.2019.08.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 05/09/2019] [Accepted: 07/31/2019] [Indexed: 10/25/2022]
Abstract
Many metazoan organs are comprised of branching trees of epithelial tubes; how patterning occurs in these trees is a fundamental problem of development. Commonly, branch tips fill the volume of the organ approximately uniformly, e.g., in mammalian lung, airway branch tips are dispersed roughly uniformly throughout the volume of the lung. In contrast, in the developing metanephric kidney, the tips of the ureteric bud tree are located close to the outer surface of the kidney rather than filling the kidney. Here, we describe a simple alteration in the branching rules that accounts for the difference between the kidney pattern that leads to tips near the organ surface versus previously known patterns that lead to the branch tips being dispersed throughout the organ. We further use a simple toy model to deduce from first principles how this rule change accounts for the differences in the two types of trees.
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Affiliation(s)
- Wei Yu
- Departments of Anatomy, University of California San Francisco, San Francisco, CA, USA; Cell and Molecular Pharmacology, University of California San Francisco, San Francisco, CA, USA
| | - Wallace F Marshall
- Center for Cellular Construction, University of California San Francisco, San Francisco, CA, USA; Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA, USA
| | - Ross J Metzger
- Departments of Anatomy, University of California San Francisco, San Francisco, CA, USA; Department of Pediatrics (Cardiology), Stanford University School of Medicine, Stanford, CA, USA
| | - Paul R Brakeman
- Department of Pediatrics (Nephrology), University of California San Francisco, San Francisco, CA, USA
| | - Leonardo Morsut
- Cell and Molecular Pharmacology, University of California San Francisco, San Francisco, CA, USA
| | - Wendell Lim
- Cell and Molecular Pharmacology, University of California San Francisco, San Francisco, CA, USA; Center for Cellular Construction, University of California San Francisco, San Francisco, CA, USA
| | - Keith E Mostov
- Departments of Anatomy, University of California San Francisco, San Francisco, CA, USA; Center for Cellular Construction, University of California San Francisco, San Francisco, CA, USA; Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, CA, USA.
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37
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El Andalousi J, Khairallah H, Zhuang Y, Ryan AK, Gupta IR. Role of Claudins in Renal Branching Morphogenesis. Physiol Rep 2020; 8:e14492. [PMID: 32975899 PMCID: PMC7518295 DOI: 10.14814/phy2.14492] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 05/25/2020] [Accepted: 05/26/2020] [Indexed: 11/26/2022] Open
Abstract
Claudins are a family of tight junction proteins that are expressed during mouse kidney development. They regulate paracellular transport of solutes along the nephron and contribute to the final composition of the urinary filtrate. To understand their roles during development, we used a protein reagent, a truncated version of the Clostridium perfringens enterotoxin (C-CPE), to specifically remove a subset of claudin family members from mouse embryonic kidney explants at embryonic day 12. We observed that treatment with C-CPE decreased the number and the complexity of ureteric bud tips that formed: there were more single and less bifid ureteric bud tips when compared to control-treated explants. In addition, C-CPE-treated explants exhibited ureteric bud tips with larger lumens when compared to control explants (p < .05). Immunofluorescent analysis revealed decreased expression and localization of Claudin-3, -4, -6, and -8 to tight junctions of ureteric bud tips following treatment with C-CPE. Interestingly, Claudin-7 showed higher expression in the basolateral membrane of the ureteric bud lineage and poor localization to the tight junctions of the ureteric bud lineage both in controls and in C-CPE-treated explants. Taken together, it appears that claudin proteins may play a role in ureteric bud branching morphogenesis through changes in lumen formation that may affect the efficiency by which ureteric buds emerge and branch.
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Affiliation(s)
- Jasmine El Andalousi
- Research Institute of McGill University Health CentreMontreal Children's HospitalMontréalQuébecCanada
| | - Halim Khairallah
- Department of Human GeneticsMcGill UniversityMontréalQuébecCanada
| | - Yuan Zhuang
- Department of Human GeneticsMcGill UniversityMontréalQuébecCanada
| | - Aimee K. Ryan
- Department of Human GeneticsMcGill UniversityMontréalQuébecCanada
- Department of PediatricsMontreal Children's HospitalMcGill UniversityMontréalQuébecCanada
| | - Indra R. Gupta
- Department of Human GeneticsMcGill UniversityMontréalQuébecCanada
- Department of PediatricsMontreal Children's HospitalMcGill UniversityMontréalQuébecCanada
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38
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Short KM, Smyth IM. Branching morphogenesis as a driver of renal development. Anat Rec (Hoboken) 2020; 303:2578-2587. [PMID: 32790143 DOI: 10.1002/ar.24486] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 10/17/2019] [Accepted: 11/01/2019] [Indexed: 12/16/2022]
Abstract
Branching morphogenesis is an integral developmental mechanism central to the formation of a range of organs including the kidney, lung, pancreas and mammary gland. The ramified networks of epithelial tubules it establishes are critical for the processes of secretion, excretion and exchange mediated by these tissues. In the kidney, branching serves to establish the collecting duct system that transports urine from the nephrons into the renal pelvis, ureter and finally the bladder. Generally speaking, the formation of these networks in different organs begins with the specification and differentiation of simple bud-like organ anlage, which then undergo a process of elaboration, typically by bifurcation. This process is often governed by the interaction of progenitor cells at the tips of the epithelia with neighboring mesenchymal cell populations which direct the branching process and which often themselves differentiate to form part of the adult organ. In the kidney, the tips of ureteric bud elaborate through a dynamic cell signaling relationship with overlying nephron progenitor cell populations. These cells sequentially commit to differentiation and the resulting nephrons reintegrate with the ureteric epithelium as development progresses. This review will describe recent advances in understanding the how the elaboration of the ureteric bud is patterned and consider the extent to which this process is shared with other organs.
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Affiliation(s)
- Kieran M Short
- Department of Anatomy and Developmental Biology, Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Victoria, Australia
| | - Ian M Smyth
- Department of Anatomy and Developmental Biology, Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Victoria, Australia
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39
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Ruiz-Sobrino A, Martín-Blanco CA, Navarro T, Almudí I, Masiero G, Jiménez-Caballero M, Buchwalter DB, Funk DH, Gattolliat JL, Lemos MC, Jiménez F, Casares F. Space colonization by branching trachea explains the morphospace of a simple respiratory organ. Dev Biol 2020; 462:50-59. [PMID: 32109442 DOI: 10.1016/j.ydbio.2020.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 01/29/2020] [Accepted: 02/04/2020] [Indexed: 10/24/2022]
Abstract
Branching morphogenesis helps increase the efficiency of gas and liquid transport in many animal organs. Studies in several model organisms have highlighted the molecular and cellular complexity behind branching morphogenesis. To understand this complexity, computational models have been developed with the goal of identifying the "major rules" that globally explain the branching patterns. These models also guide further experimental exploration of the biological processes that execute and maintain these rules. In this paper we introduce the tracheal gills of mayfly (Ephemeroptera) larvae as a model system to study the generation of branched respiratory patterns. First, we describe the gills of the mayfly Cloeon dipterum, and quantitatively characterize the geometry of its branching trachea. We next extend this characterization to those of related species to generate the morphospace of branching patterns. Then, we show how an algorithm based on the "space colonization" concept (SCA) can generate this branching morphospace via growth towards a hypothetical attractor molecule (M). SCA differs from other branch-generating algorithms in that the geometry generated depends to a great extent on its perception of the "external" space available for branching, uses few rules and, importantly, can be easily translated into a realistic "biological patterning algorithm". We identified a gene in the C. dipterum genome (Cd-bnl) that is orthologous to the fibroblast growth factor branchless (bnl), which stimulates growth and branching of embryonic trachea in Drosophila. In C. dipterum, this gene is expressed in the gill margins and areas of finer tracheolar branching from thicker trachea. Thus, Cd-bnl may perform the function of M in our model. Finally, we discuss this general mechanism in the context of other branching pattern-generating algorithms.
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Affiliation(s)
- A Ruiz-Sobrino
- CABD, GEM-DMC2 Unit (CSIC-Pablo de Olavide University-Junta de Andalucía), 41013, Seville, Spain
| | - C A Martín-Blanco
- CABD, GEM-DMC2 Unit (CSIC-Pablo de Olavide University-Junta de Andalucía), 41013, Seville, Spain
| | - T Navarro
- CABD, GEM-DMC2 Unit (CSIC-Pablo de Olavide University-Junta de Andalucía), 41013, Seville, Spain
| | - I Almudí
- CABD, GEM-DMC2 Unit (CSIC-Pablo de Olavide University-Junta de Andalucía), 41013, Seville, Spain
| | - G Masiero
- CABD, GEM-DMC2 Unit (CSIC-Pablo de Olavide University-Junta de Andalucía), 41013, Seville, Spain
| | - M Jiménez-Caballero
- CABD, GEM-DMC2 Unit (CSIC-Pablo de Olavide University-Junta de Andalucía), 41013, Seville, Spain
| | - D B Buchwalter
- North Carolina State University, Department of Biological Sciences, Raleigh, NC, 27695, USA
| | - D H Funk
- Stroud Water Research Center, Avondale, PA, 19311, USA
| | - J L Gattolliat
- Musée Cantonal de Zoologie, CH-1014, Lausanne, Switzerland; University of Lausanne (UNIL), Department of Ecology and Evolution, CH-1015, Lausanne, Switzerland
| | - M C Lemos
- Department of Condensed Matter Physics, University of Sevilla, 41012, Sevilla, Spain
| | - F Jiménez
- Department of Condensed Matter Physics, University of Sevilla, 41012, Sevilla, Spain.
| | - F Casares
- CABD, GEM-DMC2 Unit (CSIC-Pablo de Olavide University-Junta de Andalucía), 41013, Seville, Spain.
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40
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Hannezo E, Heisenberg CP. Mechanochemical Feedback Loops in Development and Disease. Cell 2020; 178:12-25. [PMID: 31251912 DOI: 10.1016/j.cell.2019.05.052] [Citation(s) in RCA: 174] [Impact Index Per Article: 43.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 05/17/2019] [Accepted: 05/24/2019] [Indexed: 12/31/2022]
Abstract
There is increasing evidence that both mechanical and biochemical signals play important roles in development and disease. The development of complex organisms, in particular, has been proposed to rely on the feedback between mechanical and biochemical patterning events. This feedback occurs at the molecular level via mechanosensation but can also arise as an emergent property of the system at the cellular and tissue level. In recent years, dynamic changes in tissue geometry, flow, rheology, and cell fate specification have emerged as key platforms of mechanochemical feedback loops in multiple processes. Here, we review recent experimental and theoretical advances in understanding how these feedbacks function in development and disease.
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Affiliation(s)
- Edouard Hannezo
- Institute of Science and Technology Austria, Klosterneuburg, Austria.
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Khoshdel Rad N, Aghdami N, Moghadasali R. Cellular and Molecular Mechanisms of Kidney Development: From the Embryo to the Kidney Organoid. Front Cell Dev Biol 2020; 8:183. [PMID: 32266264 PMCID: PMC7105577 DOI: 10.3389/fcell.2020.00183] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 03/04/2020] [Indexed: 12/27/2022] Open
Abstract
Development of the metanephric kidney is strongly dependent on complex signaling pathways and cell-cell communication between at least four major progenitor cell populations (ureteric bud, nephron, stromal, and endothelial progenitors) in the nephrogenic zone. In recent years, the improvement of human-PSC-derived kidney organoids has opened new avenues of research on kidney development, physiology, and diseases. Moreover, the kidney organoids provide a three-dimensional (3D) in vitro model for the study of cell-cell and cell-matrix interactions in the developing kidney. In vitro re-creation of a higher-order and vascularized kidney with all of its complexity is a challenging issue; however, some progress has been made in the past decade. This review focuses on major signaling pathways and transcription factors that have been identified which coordinate cell fate determination required for kidney development. We discuss how an extensive knowledge of these complex biological mechanisms translated into the dish, thus allowed the establishment of 3D human-PSC-derived kidney organoids.
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Affiliation(s)
- Niloofar Khoshdel Rad
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.,Department of Developmental Biology, University of Science and Culture, Tehran, Iran
| | - Nasser Aghdami
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Reza Moghadasali
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
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Segovia-Miranda F, Morales-Navarrete H, Kücken M, Moser V, Seifert S, Repnik U, Rost F, Brosch M, Hendricks A, Hinz S, Röcken C, Lütjohann D, Kalaidzidis Y, Schafmayer C, Brusch L, Hampe J, Zerial M. Three-dimensional spatially resolved geometrical and functional models of human liver tissue reveal new aspects of NAFLD progression. Nat Med 2019; 25:1885-1893. [PMID: 31792455 PMCID: PMC6899159 DOI: 10.1038/s41591-019-0660-7] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 10/21/2019] [Indexed: 02/07/2023]
Abstract
Early disease diagnosis is key to the effective treatment of diseases. Histopathological analysis of human biopsies is the gold standard to diagnose tissue alterations. However, this approach has low resolution and overlooks 3D (three-dimensional) structural changes resulting from functional alterations. Here, we applied multiphoton imaging, 3D digital reconstructions and computational simulations to generate spatially resolved geometrical and functional models of human liver tissue at different stages of non-alcoholic fatty liver disease (NAFLD). We identified a set of morphometric cellular and tissue parameters correlated with disease progression, and discover profound topological defects in the 3D bile canalicular (BC) network. Personalized biliary fluid dynamic simulations predicted an increased pericentral biliary pressure and micro-cholestasis, consistent with elevated cholestatic biomarkers in patients' sera. Our spatially resolved models of human liver tissue can contribute to high-definition medicine by identifying quantitative multiparametric cellular and tissue signatures to define disease progression and provide new insights into NAFLD pathophysiology.
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Affiliation(s)
| | | | - Michael Kücken
- Center for Information Services and High Performance Computing, Technische Universität Dresden, Dresden, Germany
| | - Vincent Moser
- Department of Medicine I, Gastroenterology and Hepatology, University Hospital Carl-Gustav-Carus, Technische Universität Dresden (TU Dresden), Dresden, Germany
| | - Sarah Seifert
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Urska Repnik
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Fabian Rost
- Center for Information Services and High Performance Computing, Technische Universität Dresden, Dresden, Germany
- Max Planck Institute for the Physics of Complex Systems, Dresden, Germany
| | - Mario Brosch
- Department of Medicine I, Gastroenterology and Hepatology, University Hospital Carl-Gustav-Carus, Technische Universität Dresden (TU Dresden), Dresden, Germany
- Center for Regenerative Therapies Dresden (CRTD), Technische Universität Dresden (TU Dresden), Dresden, Germany
| | - Alexander Hendricks
- Department of General Surgery, University Hospital Rostock, Rostock, Germany
| | - Sebastian Hinz
- Department of General Surgery, University Hospital Rostock, Rostock, Germany
| | | | - Dieter Lütjohann
- Institute of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Bonn, Germany
| | - Yannis Kalaidzidis
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
- Faculty of Bioengineering and Bioinformatics, Moscow State University, Moscow, Russia
| | - Clemens Schafmayer
- Department of General Surgery, University Hospital Rostock, Rostock, Germany
| | - Lutz Brusch
- Center for Information Services and High Performance Computing, Technische Universität Dresden, Dresden, Germany
| | - Jochen Hampe
- Department of Medicine I, Gastroenterology and Hepatology, University Hospital Carl-Gustav-Carus, Technische Universität Dresden (TU Dresden), Dresden, Germany.
- Center for Regenerative Therapies Dresden (CRTD), Technische Universität Dresden (TU Dresden), Dresden, Germany.
| | - Marino Zerial
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany.
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Coudert Y, Harris S, Charrier B. Design Principles of Branching Morphogenesis in Filamentous Organisms. Curr Biol 2019; 29:R1149-R1162. [PMID: 31689405 DOI: 10.1016/j.cub.2019.09.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The radiation of life on Earth was accompanied by the diversification of multicellular body plans in the eukaryotic kingdoms Animalia, Plantae, Fungi and Chromista. Branching forms are ubiquitous in nature and evolved repeatedly in the above lineages. The developmental and genetic basis of branch formation is well studied in the three-dimensional shoot and root systems of land plants, and in animal organs such as the lung, kidney, mammary gland, vasculature, etc. Notably, recent thought-provoking studies combining experimental analysis and computational modeling of branching patterns in whole animal organs have identified global patterning rules and proposed unifying principles of branching morphogenesis. Filamentous branching forms represent one of the simplest expressions of the multicellular body plan and constitute a key step in the evolution of morphological complexity. Similarities between simple and complex branching forms distantly related in evolution are compelling, raising the question whether shared mechanisms underlie their development. Here, we focus on filamentous branching organisms that represent major study models from three distinct eukaryotic kingdoms, including the moss Physcomitrella patens (Plantae), the brown alga Ectocarpus sp. (Chromista), and the ascomycetes Neurospora crassa and Aspergillus nidulans (Fungi), and bring to light developmental regulatory mechanisms and design principles common to these lineages. Throughout the review we explore how the regulatory mechanisms of branching morphogenesis identified in other models, and in particular animal organs, may inform our thinking on filamentous systems and thereby advance our understanding of the diverse strategies deployed across the eukaryotic tree of life to evolve similar forms.
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Affiliation(s)
- Yoan Coudert
- Laboratoire Reproduction et Développement des Plantes, Université de Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRA, INRIA, Lyon 69007, France.
| | - Steven Harris
- University of Manitoba, Department of Biological Sciences, Winnipeg, MB, Canada; Center for Plant Science Innovation and Department of Plant Pathology, University of Nebraska, Lincoln, NE, USA
| | - Bénédicte Charrier
- CNRS, Sorbonne Université, Laboratoire de Biologie Intégrative des Modèles Marins LBI2M, Station Biologique de Roscoff, Roscoff 29680, France
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Stewart TA, Davis FM. Formation and Function of Mammalian Epithelia: Roles for Mechanosensitive PIEZO1 Ion Channels. Front Cell Dev Biol 2019; 7:260. [PMID: 31750303 PMCID: PMC6843007 DOI: 10.3389/fcell.2019.00260] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 10/17/2019] [Indexed: 11/17/2022] Open
Abstract
Mechanical forces play important roles in shaping mammalian development. In the embryo, cells experience force both during the formation of the mammalian body plan and in the ensuing phase of organogenesis. Physical forces - including fluid flow, compression, radial pressure, contraction, and osmotic pressure - continue to play central roles as organs mature, function, and ultimately dysfunction. Multiple mechanisms exist to receive, transduce, and transmit mechanical forces in mammalian epithelial tissues and to integrate these cues, which can both fluctuate and coincide, with local and systemic chemical signals. Drawing near a decade since the discovery of the bona fide mechanically activated ion channel, PIEZO1, we discuss in this mini-review established and emerging roles for this protein in the form and function of mammalian epithelia.
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Affiliation(s)
- Teneale A. Stewart
- Faculty of Medicine, Mater Research-The University of Queensland, Brisbane, QLD, Australia
- Translational Research Institute, Brisbane, QLD, Australia
| | - Felicity M. Davis
- Faculty of Medicine, Mater Research-The University of Queensland, Brisbane, QLD, Australia
- Translational Research Institute, Brisbane, QLD, Australia
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Multiscale dynamics of branching morphogenesis. Curr Opin Cell Biol 2019; 60:99-105. [DOI: 10.1016/j.ceb.2019.04.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 04/09/2019] [Accepted: 04/16/2019] [Indexed: 12/18/2022]
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Myllymäki SM, Mikkola ML. Inductive signals in branching morphogenesis - lessons from mammary and salivary glands. Curr Opin Cell Biol 2019; 61:72-78. [PMID: 31387017 DOI: 10.1016/j.ceb.2019.07.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 06/28/2019] [Accepted: 07/02/2019] [Indexed: 12/30/2022]
Abstract
Branching morphogenesis is a fundamental developmental program that generates large epithelial surfaces in a limited three-dimensional space. It is regulated by inductive tissue interactions whose effects are mediated by soluble signaling molecules, and cell-cell and cell-extracellular matrix interactions. Here, we will review recent studies on inductive signaling interactions governing branching morphogenesis in light of phenotypes of mouse mutants and ex vivo organ culture studies with emphasis on developing mammary and salivary glands. We will highlight advances in understanding how cell fate decisions are intimately linked with branching morphogenesis. We will also discuss novel insights into the molecular control of cellular mechanisms driving the formation of these arborized ductal structures and reflect upon how distinct spatial patterns are generated.
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Affiliation(s)
- Satu-Marja Myllymäki
- Developmental Biology Program, Institute of Biotechnology, HiLIFE, P.O.B. 56, University of Helsinki, 00014 Helsinki, Finland.
| | - Marja L Mikkola
- Developmental Biology Program, Institute of Biotechnology, HiLIFE, P.O.B. 56, University of Helsinki, 00014 Helsinki, Finland.
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