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Ma M, Zhang L, Liu Z, Teng Y, Li M, Peng X, An L. Effect of blastocyst development on hatching and embryo implantation. Theriogenology 2024; 214:66-72. [PMID: 37857152 DOI: 10.1016/j.theriogenology.2023.10.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 10/11/2023] [Accepted: 10/11/2023] [Indexed: 10/21/2023]
Abstract
The mammalian zygote, formed after a sperm fertilizes an egg, undergoes several rounds of mitosis and morphogenesis to form the blastocyst. During the peri-implantation period, the blastocyst hatches out of the zona pellucida (ZP) and invades the receptive uterine endometrium. This process promotes maternal-fetal dialogue at the physiological and molecular level, thereby initiating the implantation process. Blastocyst hatching is a consequence of elevated osmotic pressure due to active Na+/K+ ion transporter in the blastocyst cavity, as well as proteases produced by trophectoderm (TE) that hydrolyze the ZP. This review summarizes the process underpinning blastocyst hatching, such as the hatching schedule, the location of TEs during initial hatching out of the ZP, the molecules involved in blastocyst hatching, and how these processes affect implantation events. Additionally, we focus on identifying crucial molecules that may influence the quality of implantation and predict the outcome of embryo implantation. Further understanding the mechanism of these molecules may help us to improve the efficiency of Assisted reproductive technology (ART) in livestock breeding. This review provides insight into embryonic development, specifically during the short-term process of blastocyst hatching and its effects on the following implantation.
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Affiliation(s)
- Meixiang Ma
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi, 830046, China
| | - Liang Zhang
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi, 830046, China
| | - Zihan Liu
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi, 830046, China
| | - Yadi Teng
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi, 830046, China
| | - Miaolong Li
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi, 830046, China
| | - Xinrong Peng
- Institute of Animal Biotechnology, Xinjiang Academy of Animal Science, Urumqi, 830011, China.
| | - Liyou An
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi, 830046, China.
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2
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Bissiere S, Hernandez B, Rubio C, Simón C, Plachta N. Updates on preimplantation embryo research. Fertil Steril 2023; 120:467-472. [PMID: 37150393 DOI: 10.1016/j.fertnstert.2023.04.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 04/27/2023] [Accepted: 04/28/2023] [Indexed: 05/09/2023]
Abstract
Preimplantation development is the only stage of human development that can be studied outside the body in real time, as human embryos can be produced by in vitro fertilization and cultured in the laboratory as self-contained structures until the blastocyst stage. Here, we focus some of the key cellular and morphogenetic processes by which the 1-cell embryo is transformed gradually into a blastocyst ready for implantation. Although most of our knowledge about the dynamic series of events patterning preimplantation human development derives from work in mouse embryos, we discuss key differences that could exist with humans. Furthermore, we highlight how new approaches may enable to reveal many of the unknown processes driving human preimplantation development, particularly using noninvasive imaging and genetic technologies.
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Affiliation(s)
- Stephanie Bissiere
- Department of Cell and Developmental Biology, Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Blake Hernandez
- Department of Cell and Developmental Biology, Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | | | - Carlos Simón
- Department of Pediatrics Obstetrics & Gynecology, University of Valencia, & INCLIVA, Valencia, Spain; Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston
| | - Nicolas Plachta
- Department of Cell and Developmental Biology, Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
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3
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Domingo-Muelas A, Skory RM, Moverley AA, Ardestani G, Pomp O, Rubio C, Tetlak P, Hernandez B, Rhon-Calderon EA, Navarro-Sánchez L, García-Pascual CM, Bissiere S, Bartolomei MS, Sakkas D, Simón C, Plachta N. Human embryo live imaging reveals nuclear DNA shedding during blastocyst expansion and biopsy. Cell 2023; 186:3166-3181.e18. [PMID: 37413989 PMCID: PMC11170958 DOI: 10.1016/j.cell.2023.06.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 04/05/2023] [Accepted: 06/05/2023] [Indexed: 07/08/2023]
Abstract
Proper preimplantation development is essential to assemble a blastocyst capable of implantation. Live imaging has uncovered major events driving early development in mouse embryos; yet, studies in humans have been limited by restrictions on genetic manipulation and lack of imaging approaches. We have overcome this barrier by combining fluorescent dyes with live imaging to reveal the dynamics of chromosome segregation, compaction, polarization, blastocyst formation, and hatching in the human embryo. We also show that blastocyst expansion mechanically constrains trophectoderm cells, causing nuclear budding and DNA shedding into the cytoplasm. Furthermore, cells with lower perinuclear keratin levels are more prone to undergo DNA loss. Moreover, applying trophectoderm biopsy, a mechanical procedure performed clinically for genetic testing, increases DNA shedding. Thus, our work reveals distinct processes underlying human development compared with mouse and suggests that aneuploidies in human embryos may not only originate from chromosome segregation errors during mitosis but also from nuclear DNA shedding.
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Affiliation(s)
- Ana Domingo-Muelas
- Department of Cell and Developmental Biology, Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Igenomix Foundation and Carlos Simon Foundation, Spain
| | - Robin M Skory
- Department of Cell and Developmental Biology, Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Adam A Moverley
- Department of Cell and Developmental Biology, Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; University College London, London WC1E 6BT, UK
| | | | - Oz Pomp
- Department of Cell and Developmental Biology, Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | | | - Piotr Tetlak
- Department of Cell and Developmental Biology, Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Blake Hernandez
- Department of Cell and Developmental Biology, Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Eric A Rhon-Calderon
- Department of Cell and Developmental Biology, Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | | | | | - Stephanie Bissiere
- Department of Cell and Developmental Biology, Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Marisa S Bartolomei
- Department of Cell and Developmental Biology, Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | | | - Carlos Simón
- Igenomix Foundation and Carlos Simon Foundation, Spain; Department of Pediatrics Obstetrics & Gynecology, University of Valencia, Valencia 46010, Spain; INCLIVA Health Research Institute, Valencia 46010, Spain; Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.
| | - Nicolas Plachta
- Department of Cell and Developmental Biology, Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
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4
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Xu KL, Mauck RL, Burdick JA. Modeling development using hydrogels. Development 2023; 150:dev201527. [PMID: 37387575 PMCID: PMC10323241 DOI: 10.1242/dev.201527] [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] [Indexed: 07/01/2023]
Abstract
The development of multicellular complex organisms relies on coordinated signaling from the microenvironment, including both biochemical and mechanical interactions. To better understand developmental biology, increasingly sophisticated in vitro systems are needed to mimic these complex extracellular features. In this Primer, we explore how engineered hydrogels can serve as in vitro culture platforms to present such signals in a controlled manner and include examples of how they have been used to advance our understanding of developmental biology.
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Affiliation(s)
- Karen L. Xu
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Robert L. Mauck
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Translational Musculoskeletal Research Center, Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA 19104, USA
| | - Jason A. Burdick
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
- BioFrontiers Institute, University of Colorado Boulder, Boulder, CO 80303, USA
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, CO 80303, USA
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5
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Kato S, Inomata H. Blastopore gating mechanism to regulate extracellular fluid excretion. iScience 2023; 26:106585. [PMID: 37192977 PMCID: PMC10182286 DOI: 10.1016/j.isci.2023.106585] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 02/07/2023] [Accepted: 03/29/2023] [Indexed: 05/18/2023] Open
Abstract
Fluid uptake and efflux play roles in early embryogenesis as well as in adult homeostasis. Multicellular organisms have two main pathways for fluid movement: cellular-level, such as transcellular and paracellular pathways, and tissue-level, involving muscle contraction. Interestingly, early Xenopus embryos with immature functional muscles excrete archenteron fluid via a tissue-level mechanism that opens the blastopore through a gating mechanism that is unclear. Using microelectrodes, we show that the archenteron has a constant fluid pressure and as development progress the blastopore pressure resistance decreases. Combining physical perturbations and imaging analyses, we found that the pushing force exerted by the circumblastoporal collars (CBCs) at the slit periphery regulates pressure resistance. We show that apical constriction at the blastopore dorsoventral ends contributes to this pushing force, and relaxation of ventral constriction causes fluid excretion. These results indicate that actomyosin contraction mediates temporal control of tissue-level blastopore opening and fluid excretion in early Xenopus embryos.
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Affiliation(s)
- Soichiro Kato
- Laboratory for Axial Pattern Dynamics, Center for Biosystems Dynamics Research, RIKEN, Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
- Laboratory for Developmental Morphogeometry, Center for Biosystems Dynamics Research, RIKEN, Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
- Department of Biological Sciences, Graduate School of Science, Osaka University, Machikaneyama, Toyonaka, Osaka 560-0043, Japan
- Corresponding author
| | - Hidehiko Inomata
- Laboratory for Axial Pattern Dynamics, Center for Biosystems Dynamics Research, RIKEN, Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
- Department of Biological Sciences, Graduate School of Science, Osaka University, Machikaneyama, Toyonaka, Osaka 560-0043, Japan
- Corresponding author
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Mohagheghian E, Luo J, Yavitt FM, Wei F, Bhala P, Amar K, Rashid F, Wang Y, Liu X, Ji C, Chen J, Arnold DP, Liu Z, Anseth KS, Wang N. Quantifying stiffness and forces of tumor colonies and embryos using a magnetic microrobot. Sci Robot 2023; 8:eadc9800. [PMID: 36696474 PMCID: PMC10098875 DOI: 10.1126/scirobotics.adc9800] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 12/22/2022] [Indexed: 01/27/2023]
Abstract
Stiffness and forces are two fundamental quantities essential to living cells and tissues. However, it has been a challenge to quantify both 3D traction forces and stiffness (or modulus) using the same probe in vivo. Here, we describe an approach that overcomes this challenge by creating a magnetic microrobot probe with controllable functionality. Biocompatible ferromagnetic cobalt-platinum microcrosses were fabricated, and each microcross (about 30 micrometers) was trapped inside an arginine-glycine-apartic acid-conjugated stiff poly(ethylene glycol) (PEG) round microgel (about 50 micrometers) using a microfluidic device. The stiff magnetic microrobot was seeded inside a cell colony and acted as a stiffness probe by rigidly rotating in response to an oscillatory magnetic field. Then, brief episodes of ultraviolet light exposure were applied to dynamically photodegrade and soften the fluorescent nanoparticle-embedded PEG microgel, whose deformation and 3D traction forces were quantified. Using the microrobot probe, we show that malignant tumor-repopulating cell colonies altered their modulus but not traction forces in response to different 3D substrate elasticities. Stiffness and 3D traction forces were measured, and both normal and shear traction force oscillations were observed in zebrafish embryos from blastula to gastrula. Mouse embryos generated larger tensile and compressive traction force oscillations than shear traction force oscillations during blastocyst. The microrobot probe with controllable functionality via magnetic fields could potentially be useful for studying the mechanoregulation of cells, tissues, and embryos.
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Affiliation(s)
- Erfan Mohagheghian
- Department of Mechanical Science and Engineering, The Grainger College of Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Junyu Luo
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Laboratory for Cellular Biomechanics and Regenerative Medicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - F. Max Yavitt
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, CO 80309, USA
- BioFrontiers Institute, University of Colorado, Boulder, CO 80309, USA
| | - Fuxiang Wei
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Laboratory for Cellular Biomechanics and Regenerative Medicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Parth Bhala
- Department of Mechanical Science and Engineering, The Grainger College of Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Kshitij Amar
- Department of Mechanical Science and Engineering, The Grainger College of Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Fazlur Rashid
- Department of Mechanical Science and Engineering, The Grainger College of Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Yuzheng Wang
- Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Xingchen Liu
- Institute of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, China
| | - Chenyang Ji
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Laboratory for Cellular Biomechanics and Regenerative Medicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Junwei Chen
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Laboratory for Cellular Biomechanics and Regenerative Medicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - David P. Arnold
- Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Zhen Liu
- Institute of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, China
| | - Kristi S. Anseth
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, CO 80309, USA
- BioFrontiers Institute, University of Colorado, Boulder, CO 80309, USA
| | - Ning Wang
- Department of Mechanical Science and Engineering, The Grainger College of Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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7
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Canse C, Yildirim E, Yaba A. Overview of junctional complexes during mammalian early embryonic development. Front Endocrinol (Lausanne) 2023; 14:1150017. [PMID: 37152932 PMCID: PMC10158982 DOI: 10.3389/fendo.2023.1150017] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 02/28/2023] [Indexed: 05/09/2023] Open
Abstract
Cell-cell junctions form strong intercellular connections and mediate communication between blastomeres during preimplantation embryonic development and thus are crucial for cell integrity, polarity, cell fate specification and morphogenesis. Together with cell adhesion molecules and cytoskeletal elements, intercellular junctions orchestrate mechanotransduction, morphokinetics and signaling networks during the development of early embryos. This review focuses on the structure, organization, function and expressional pattern of the cell-cell junction complexes during early embryonic development. Understanding the importance of dynamic junction formation and maturation processes will shed light on the molecular mechanism behind developmental abnormalities of early embryos during the preimplantation period.
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Affiliation(s)
- Ceren Canse
- Faculty of Medicine, Yeditepe University, Istanbul, Türkiye
| | - Ecem Yildirim
- Department of Histology and Embryology, Yeditepe University Faculty of Medicine, Istanbul, Türkiye
| | - Aylin Yaba
- Department of Histology and Embryology, Yeditepe University Faculty of Medicine, Istanbul, Türkiye
- *Correspondence: Aylin Yaba,
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8
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Choudhury MI, Benson MA, Sun SX. Trans-epithelial fluid flow and mechanics of epithelial morphogenesis. Semin Cell Dev Biol 2022; 131:146-159. [PMID: 35659163 DOI: 10.1016/j.semcdb.2022.05.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/22/2022] [Accepted: 05/23/2022] [Indexed: 12/14/2022]
Abstract
Active fluid transport across epithelial monolayers is emerging as a major driving force of tissue morphogenesis in a variety of healthy and diseased systems, as well as during embryonic development. Cells use directional transport of ions and osmotic gradients to drive fluid flow across the cell surface, in the process also building up fluid pressure. The basic physics of this process is described by the osmotic engine model, which also underlies actin-independent cell migration. Recently, the trans-epithelial fluid flux and the hydraulic pressure gradient have been explicitly measured for a variety of cellular and tissue model systems across various species. For the kidney, it was shown that tubular epithelial cells behave as active mechanical fluid pumps: the trans-epithelial fluid flux depends on the hydraulic pressure difference across the epithelial layer. When a stall pressure is reached, the fluid flux vanishes. Hydraulic forces generated from active fluid pumping are important in tissue morphogenesis and homeostasis, and could also underlie multiple morphogenic events seen in other developmental contexts. In this review, we highlight findings that examined the role of trans-epithelial fluid flux and hydraulic pressure gradient in driving tissue-scale morphogenesis. We also review organ pathophysiology due to impaired fluid pumping and the loss of hydraulic pressure sensing at the cellular scale. Finally, we draw an analogy between cellular fluidic pumps and a connected network of water pumps in a city. The dynamics of fluid transport in an active and adaptive network is determined globally at the systemic level, and transport in such a network is best when each pump is operating at its optimal efficiency.
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Affiliation(s)
- Mohammad Ikbal Choudhury
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, United States; Institute of NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, United States; Department of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, United States
| | - Morgan A Benson
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, United States; Institute of NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, United States
| | - Sean X Sun
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, United States; Institute of NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, United States; Center for Cell Dynamics, Johns Hopkins University, Baltimore, MD 21218, United States.
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9
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Chan CJ, Hirashima T. Tissue hydraulics in reproduction. Semin Cell Dev Biol 2022; 131:124-133. [PMID: 35606275 DOI: 10.1016/j.semcdb.2022.05.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/12/2022] [Accepted: 05/13/2022] [Indexed: 12/14/2022]
Abstract
The development of functional eggs and sperm are critical processes in mammalian development as they ensure successful reproduction and species propagation. While past studies have identified important genes that regulate these processes, the roles of luminal flow and fluid stress in reproductive biology remain less well understood. Here, we discuss recent evidence that support the diverse functions of luminal fluid in oogenesis, spermatogenesis and embryogenesis. We also review emerging techniques that allow for precise quantification and perturbation of tissue hydraulics in female and male reproductive systems, and propose new questions and approaches in this field. We hope this review will provide a useful resource to inspire future research in tissue hydraulics in reproductive biology and diseases.
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Affiliation(s)
- Chii Jou Chan
- Mechanobiology Institute, National University of Singapore, Singapore; Department of Biological Sciences, National University of Singapore, Singapore.
| | - Tsuyoshi Hirashima
- Mechanobiology Institute, National University of Singapore, Singapore; Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; The Hakubi Center/Graduate School of Biostudies, Kyoto University, Kyoto, Japan; Japan Science and Technology Agency, PRESTO, Kawaguchi, Japan.
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10
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Chugh M, Munjal A, Megason SG. Hydrostatic pressure as a driver of cell and tissue morphogenesis. Semin Cell Dev Biol 2022; 131:134-145. [PMID: 35534334 PMCID: PMC9529827 DOI: 10.1016/j.semcdb.2022.04.021] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/24/2022] [Accepted: 04/27/2022] [Indexed: 12/14/2022]
Abstract
Morphogenesis, the process by which tissues develop into functional shapes, requires coordinated mechanical forces. Most current literature ascribes contractile forces derived from actomyosin networks as the major driver of tissue morphogenesis. Recent works from diverse species have shown that pressure derived from fluids can generate deformations necessary for tissue morphogenesis. In this review, we discuss how hydrostatic pressure is generated at the cellular and tissue level and how the pressure can cause deformations. We highlight and review findings demonstrating the mechanical roles of pressures from fluid-filled lumens and viscous gel-like components of the extracellular matrix. We also emphasise the interactions and mechanochemical feedbacks between extracellular pressures and tissue behaviour in driving tissue remodelling. Lastly, we offer perspectives on the open questions in the field that will further our understanding to uncover new principles of tissue organisation during development.
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Affiliation(s)
- Mayank Chugh
- Department of Systems Biology, Harvard Medical School, 200 Longwood Avenue, Boston, MA 02115, USA.
| | - Akankshi Munjal
- Department of Cell Biology, Duke University School of Medicine, Nanaline Duke Building, 307 Research Drive, Durham, NC 27710, USA.
| | - Sean G Megason
- Department of Systems Biology, Harvard Medical School, 200 Longwood Avenue, Boston, MA 02115, USA.
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11
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Kim YS, Bedzhov I. Mechanisms of formation and functions of the early embryonic cavities. Semin Cell Dev Biol 2022; 131:110-116. [PMID: 35513973 DOI: 10.1016/j.semcdb.2022.04.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 04/11/2022] [Accepted: 04/27/2022] [Indexed: 12/14/2022]
Abstract
As the early mouse embryo develops, fundamental steps include the sequential formation of the first lumens in the murine conceptus. The first cavity established in the pre-implantation embryo is the blastocoel, followed by the emergence of the proamniotic cavity during the peri-implantation stages. The mouse embryo is a dynamic system which switches its modes of lumenogenesis before and after implantation. The blastocoel emerges in between the basolateral membranes, whereas the proamniotic cavity is formed on the apical interface. Defects in the sculpting of these luminal spaces are associated with developmental abnormalities and embryonic lethality. Here, we review the mechanisms by which these early embryonic cavities are formed and discuss the cavities in terms of their common and stage-specific principles of lumenogenesis and their functions.
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Affiliation(s)
- Yung Su Kim
- Embryonic Self-Organization Research Group, Max Planck Institute for Molecular Biomedicine, Röntgenstraße 20, 48149 Münster, Germany
| | - Ivan Bedzhov
- Embryonic Self-Organization Research Group, Max Planck Institute for Molecular Biomedicine, Röntgenstraße 20, 48149 Münster, Germany.
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12
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Alarcon VB, Marikawa Y. Trophectoderm formation: regulation of morphogenesis and gene expressions by RHO, ROCK, cell polarity, and HIPPO signaling. Reproduction 2022; 164:R75-R86. [PMID: 35900353 PMCID: PMC9398960 DOI: 10.1530/rep-21-0478] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 07/14/2022] [Indexed: 11/08/2022]
Abstract
In brief Trophectoderm is the first tissue to differentiate in the early mammalian embryo and is essential for hatching, implantation, and placentation. This review article discusses the roles of Ras homolog family members (RHO) and RHO-associated coiled-coil containing protein kinases (ROCK) in the molecular and cellular regulation of trophectoderm formation. Abstract The trophectoderm (TE) is the first tissue to differentiate during the preimplantation development of placental mammals. It constitutes the outer epithelial layer of the blastocyst and is responsible for hatching, uterine attachment, and placentation. Thus, its formation is the key initial step that enables the viviparity of mammals. Here, we first describe the general features of TE formation at the morphological and molecular levels. Prospective TE cells form an epithelial layer enclosing an expanding fluid-filled cavity by establishing the apical-basal cell polarity, intercellular junctions, microlumen, and osmotic gradient. A unique set of genes is expressed in TE that encode the transcription factors essential for the development of trophoblasts of the placenta upon implantation. TE-specific gene expressions are driven by the inhibition of HIPPO signaling, which is dependent on the prior establishment of the apical-basal polarity. We then discuss the specific roles of RHO and ROCK as essential regulators of TE formation. RHO and ROCK modulate the actomyosin cytoskeleton, apical-basal polarity, intercellular junctions, and HIPPO signaling, thereby orchestrating the epithelialization and gene expressions in TE. Knowledge of the molecular mechanisms underlying TE formation is crucial for assisted reproductive technologies in human and farm animals, as it provides foundation to help improve procedures for embryo handling and selection to achieve better reproductive outcomes.
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Affiliation(s)
- Vernadeth B. Alarcon
- Institute for Biogenesis Research, Department of Anatomy, Biochemistry and Physiology, University of Hawaii John A. Burns School of Medicine, Honolulu, HI 96813, USA
| | - Yusuke Marikawa
- Institute for Biogenesis Research, Department of Anatomy, Biochemistry and Physiology, University of Hawaii John A. Burns School of Medicine, Honolulu, HI 96813, USA
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13
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Zhuan Q, Li J, Du X, Zhang L, Meng L, Luo Y, Zhou D, Liu H, Wan P, Hou Y, Fu X. Antioxidant procyanidin B2 protects oocytes against cryoinjuries via mitochondria regulated cortical tension. J Anim Sci Biotechnol 2022; 13:95. [PMID: 35971139 PMCID: PMC9380387 DOI: 10.1186/s40104-022-00742-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 06/05/2022] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Irreversible cryodamage caused by oocyte vitrification limited its wild application in female fertility preservation. Antioxidants were always used to antagonist the oxidative stress caused by vitrification. However, the comprehensive mechanism underlying the protective role of antioxidants has not been studied. Procyanidin B2 (PCB2) is a potent natural antioxidant and its functions in response to vitrification are still unknown. In this study, the effects of PCB2 on vitrified-thawed oocytes and subsequent embryo development were explored, and the mechanisms underlying the protective role of PCB2 were systematically elucidated. RESULTS Vitrification induced a marked decline in oocyte quality, while PCB2 could improve oocyte viability and further development after parthenogenetic activation. A subsequent study indicated that PCB2 effectively attenuated vitrification-induced oxidative stress, rescued mitochondrial dysfunction, and improved cell viability. Moreover, PCB2 also acts as a cortical tension regulator apart from strong antioxidant properties. Increased cortical tension caused by PCB2 would maintain normal spindle morphology and promote migration, ensure correct meiosis progression and finally reduce the aneuploidy rate in vitrified oocytes. Further study reveals that ATP biosynthesis plays a crucial role in cortical tension regulation, and PCB2 effectively increased the cortical tension through the electron transfer chain pathway. Additionally, PCB2 would elevate the cortical tension in embryo cells at morula and blastocyst stages and further improve blastocyst quality. What's more, targeted metabolomics shows that PCB2 has a beneficial effect on blastocyst formation by mediating saccharides and amino acids metabolism. CONCLUSIONS Antioxidant PCB2 exhibits multi-protective roles in response to vitrification stimuli through mitochondria-mediated cortical tension regulation.
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Affiliation(s)
- Qingrui Zhuan
- grid.22935.3f0000 0004 0530 8290Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, National Engineering Laboratory for Animal Breeding, China Agricultural University, Beijing, China
| | - Jun Li
- grid.452458.aDepartment of Reproductive Medicine, Reproductive Medical Center, The First Hospital of Hebei Medical University, Shijiazhuang, Hebei China
| | - Xingzhu Du
- grid.22935.3f0000 0004 0530 8290Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, National Engineering Laboratory for Animal Breeding, China Agricultural University, Beijing, China
| | - Luyao Zhang
- grid.22935.3f0000 0004 0530 8290State Key Laboratories of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Lin Meng
- grid.22935.3f0000 0004 0530 8290State Key Laboratories of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Yuwen Luo
- grid.22935.3f0000 0004 0530 8290Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, National Engineering Laboratory for Animal Breeding, China Agricultural University, Beijing, China
| | - Dan Zhou
- grid.22935.3f0000 0004 0530 8290Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, National Engineering Laboratory for Animal Breeding, China Agricultural University, Beijing, China
| | - Hongyu Liu
- grid.22935.3f0000 0004 0530 8290Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, National Engineering Laboratory for Animal Breeding, China Agricultural University, Beijing, China
| | - Pengcheng Wan
- grid.469620.f0000 0004 4678 3979State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Institute of Animal Husbandry and Veterinary Sciences, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihhotze, China
| | - Yunpeng Hou
- grid.22935.3f0000 0004 0530 8290State Key Laboratories of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Xiangwei Fu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, National Engineering Laboratory for Animal Breeding, China Agricultural University, Beijing, China. .,State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Institute of Animal Husbandry and Veterinary Sciences, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihhotze, China.
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14
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Karcz A, Van Soom A, Smits K, Verplancke R, Van Vlierberghe S, Vanfleteren J. Electrically-driven handling of gametes and embryos: taking a step towards the future of ARTs. LAB ON A CHIP 2022; 22:1852-1875. [PMID: 35510672 DOI: 10.1039/d1lc01160j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Electrical stimulation of gametes and embryos and on-chip manipulation of microdroplets of culture medium serve as promising tools for assisted reproductive technologies (ARTs). Thus far, dielectrophoresis (DEP), electrorotation (ER) and electrowetting on dielectric (EWOD) proved compatible with most laboratory procedures offered by ARTs. Positioning, entrapment and selection of reproductive cells can be achieved with DEP and ER, while EWOD provides the dynamic microenvironment of a developing embryo to better mimic the functions of the oviduct. Furthermore, these techniques are applicable for the assessment of the developmental competence of a mammalian embryo in vitro. Such research paves the way towards the amelioration and full automation of the assisted reproduction methods. This article aims to provide a summary on the recent developments regarding electrically stimulated lab-on-chip devices and their application for the manipulation of gametes and embryos in vitro.
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Affiliation(s)
- Adriana Karcz
- Centre for Microsystems Technology (CMST), Imec and Ghent University, Technologiepark Zwijnaarde 126, 9052 Zwijnaarde, Ghent, Belgium.
- Reproductive Biology Unit (RBU), Faculty of Veterinary Medicine, Department of Internal Medicine, Reproduction and Population Medicine, Ghent University, Salisburylaan 133 D4 entrance 4, 9820 Merelbeke, Belgium
| | - Ann Van Soom
- Reproductive Biology Unit (RBU), Faculty of Veterinary Medicine, Department of Internal Medicine, Reproduction and Population Medicine, Ghent University, Salisburylaan 133 D4 entrance 4, 9820 Merelbeke, Belgium
| | - Katrien Smits
- Reproductive Biology Unit (RBU), Faculty of Veterinary Medicine, Department of Internal Medicine, Reproduction and Population Medicine, Ghent University, Salisburylaan 133 D4 entrance 4, 9820 Merelbeke, Belgium
| | - Rik Verplancke
- Centre for Microsystems Technology (CMST), Imec and Ghent University, Technologiepark Zwijnaarde 126, 9052 Zwijnaarde, Ghent, Belgium.
| | - Sandra Van Vlierberghe
- Polymer Chemistry and Biomaterials Group, Centre of Macromolecular Chemistry, Ghent University, Campus Sterre, building S4, Krijgslaan 281, 9000 Ghent, Belgium
| | - Jan Vanfleteren
- Centre for Microsystems Technology (CMST), Imec and Ghent University, Technologiepark Zwijnaarde 126, 9052 Zwijnaarde, Ghent, Belgium.
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15
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Kinoshita N, Yamamoto TS, Yasue N, Takagi C, Fujimori T, Ueno N. Force-dependent remodeling of cytoplasmic ZO-1 condensates contributes to cell-cell adhesion through enhancing tight junctions. iScience 2022; 25:103846. [PMID: 35198899 PMCID: PMC8850805 DOI: 10.1016/j.isci.2022.103846] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 12/22/2021] [Accepted: 01/25/2022] [Indexed: 12/01/2022] Open
Abstract
The physiological importance of biomolecular condensates is widely recognized, but how it is controlled in time and space during development is largely unknown. Here, we show that a tight junction protein ZO-1 forms cytoplasmic condensates in the trophectoderm (TE) of the mouse embryo before E4.0. These disappear via dissolution, and ZO-1 accumulates at the cell junction as the blastocyst cavity grows and internal pressure on TE cells increases. In contrast, this dissolution was less evident in TE cells attached to the inner cell mass because they receive weaker tensile forces. Furthermore, analyses using MDCK cells demonstrated that the ZO-1 condensates are generated and maintained by liquid-liquid phase separation. Our study also highlights that the dynamics of these condensates depends on the physical environment via an interaction between ZO-1 and F-actin. We propose that the force-dependent regulation of ZO-1 condensation contributes to the establishment of robust cell-cell adhesion during early development. ZO-1 forms cytoplasmic droplets via liquid-liquid phase separation In hatching mouse embryos, ZO-1 droplets dissolve and it localizes to cell junctions In MDCK cells, ZO-1 forms droplets in response to mechanical environments Interaction with F-actin negatively regulates ZO-1 phase separation
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Affiliation(s)
- Noriyuki Kinoshita
- Division of Morphogenesis, Department of Developmental Biology, National Institute for Basic Biology, 38 Nishigonaka Myodaiji, Okazaki, Aichi 444-8585, Japan.,School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi 444-8585, Japan
| | - Takamasa S Yamamoto
- Division of Morphogenesis, Department of Developmental Biology, National Institute for Basic Biology, 38 Nishigonaka Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - Naoko Yasue
- Division of Morphogenesis, Department of Developmental Biology, National Institute for Basic Biology, 38 Nishigonaka Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - Chiyo Takagi
- Division of Morphogenesis, Department of Developmental Biology, National Institute for Basic Biology, 38 Nishigonaka Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - Toshihiko Fujimori
- Division of Embryology, Department of Developmental Biology, National Institute for Basic Biology, 5-1 Higashiyama Myodaiji, Okazaki, Aichi 444-8787, Japan.,School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi 444-8585, Japan
| | - Naoto Ueno
- Division of Morphogenesis, Department of Developmental Biology, National Institute for Basic Biology, 38 Nishigonaka Myodaiji, Okazaki, Aichi 444-8585, Japan.,School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi 444-8585, Japan.,Unit of Quantitative and Imaging Biology, International Research Collaboration Center, National Institutes of Natural Sciences, 38 Nishigonaka Myodaiji, Okazaki, Aichi 444-8585, Japan
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16
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Royer C, Sandham E, Slee E, Schneider F, Lagerholm CB, Godwin J, Veits N, Hathrell H, Zhou F, Leonavicius K, Garratt J, Narendra T, Vincent A, Jones C, Child T, Coward K, Graham C, Fritzsche M, Lu X, Srinivas S. ASPP2 maintains the integrity of mechanically stressed pseudostratified epithelia during morphogenesis. Nat Commun 2022; 13:941. [PMID: 35177595 PMCID: PMC8854694 DOI: 10.1038/s41467-022-28590-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 01/28/2022] [Indexed: 11/09/2022] Open
Abstract
During development, pseudostratified epithelia undergo large scale morphogenetic events associated with increased mechanical stress. Using a variety of genetic and imaging approaches, we uncover that in the mouse E6.5 epiblast, where apical tension is highest, ASPP2 safeguards tissue integrity. It achieves this by preventing the most apical daughter cells from delaminating apically following division events. In this context, ASPP2 maintains the integrity and organisation of the filamentous actin cytoskeleton at apical junctions. ASPP2 is also essential during gastrulation in the primitive streak, in somites and in the head fold region, suggesting that it is required across a wide range of pseudostratified epithelia during morphogenetic events that are accompanied by intense tissue remodelling. Finally, our study also suggests that the interaction between ASPP2 and PP1 is essential to the tumour suppressor function of ASPP2, which may be particularly relevant in the context of tissues that are subject to increased mechanical stress. The early embryo maintains its structure in the face of large mechanical stresses during morphogenesis. Here they show that ASPP2 acts to preserve epithelial integrity in regions of high apical tension during early development.
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Affiliation(s)
- Christophe Royer
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, OX1 3QX, UK.
| | - Elizabeth Sandham
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, OX1 3QX, UK
| | - Elizabeth Slee
- Ludwig Institute for Cancer Research, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7DQ, UK
| | - Falk Schneider
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK.,Translational Imaging Center, University of Southern California, Los Angeles, CA, 90089, USA
| | - Christoffer B Lagerholm
- Wolfson Imaging Centre Oxford, MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Jonathan Godwin
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, OX1 3QX, UK.,Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK
| | - Nisha Veits
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, OX1 3QX, UK
| | - Holly Hathrell
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, OX1 3QX, UK
| | - Felix Zhou
- Ludwig Institute for Cancer Research, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7DQ, UK
| | - Karolis Leonavicius
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, OX1 3QX, UK.,Institute of Biotechnology, Vilnius University, Vilnius, Lithuania
| | - Jemma Garratt
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, OX1 3QX, UK.,Nuffield Department of Women's and Reproductive Health, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Headington, Oxford, OX3 9DU, UK
| | - Tanaya Narendra
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, OX1 3QX, UK.,Nuffield Department of Women's and Reproductive Health, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Headington, Oxford, OX3 9DU, UK
| | - Anna Vincent
- Oxford Fertility, Institute of Reproductive Sciences, Oxford Business Park North, Oxford, OX4 2HW, UK
| | - Celine Jones
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Headington, Oxford, OX3 9DU, UK
| | - Tim Child
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Headington, Oxford, OX3 9DU, UK.,Oxford Fertility, Institute of Reproductive Sciences, Oxford Business Park North, Oxford, OX4 2HW, UK
| | - Kevin Coward
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Headington, Oxford, OX3 9DU, UK
| | - Chris Graham
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Headington, Oxford, OX3 9DU, UK
| | - Marco Fritzsche
- Kennedy Institute for Rheumatology, University of Oxford, Oxford, OX3 7LF, UK.,Rosalind Franklin Institute, Didcot, OX11 0QS, UK
| | - Xin Lu
- Ludwig Institute for Cancer Research, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7DQ, UK
| | - Shankar Srinivas
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, OX1 3QX, UK.
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17
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Ichikawa T, Zhang HT, Panavaite L, Erzberger A, Fabrèges D, Snajder R, Wolny A, Korotkevich E, Tsuchida-Straeten N, Hufnagel L, Kreshuk A, Hiiragi T. An ex vivo system to study cellular dynamics underlying mouse peri-implantation development. Dev Cell 2022; 57:373-386.e9. [PMID: 35063082 PMCID: PMC8826647 DOI: 10.1016/j.devcel.2021.12.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 08/23/2021] [Accepted: 12/23/2021] [Indexed: 01/09/2023]
Abstract
Upon implantation, mammalian embryos undergo major morphogenesis and key developmental processes such as body axis specification and gastrulation. However, limited accessibility obscures the study of these crucial processes. Here, we develop an ex vivo Matrigel-collagen-based culture to recapitulate mouse development from E4.5 to E6.0. Our system not only recapitulates embryonic growth, axis initiation, and overall 3D architecture in 49% of the cases, but its compatibility with light-sheet microscopy also enables the study of cellular dynamics through automatic cell segmentation. We find that, upon implantation, release of the increasing tension in the polar trophectoderm is necessary for its constriction and invagination. The resulting extra-embryonic ectoderm plays a key role in growth, morphogenesis, and patterning of the neighboring epiblast, which subsequently gives rise to all embryonic tissues. This 3D ex vivo system thus offers unprecedented access to peri-implantation development for in toto monitoring, measurement, and spatiotemporally controlled perturbation, revealing a mechano-chemical interplay between extra-embryonic and embryonic tissues.
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Affiliation(s)
- Takafumi Ichikawa
- European Molecular Biology Laboratory (EMBL), 69117 Heidelberg, Germany
| | - Hui Ting Zhang
- European Molecular Biology Laboratory (EMBL), 69117 Heidelberg, Germany; Collaboration for PhD degree between EMBL and Heidelberg University, Faculty of Biosciences, Heidelberg, Germany
| | - Laura Panavaite
- European Molecular Biology Laboratory (EMBL), 69117 Heidelberg, Germany; Collaboration for PhD degree between EMBL and Heidelberg University, Faculty of Biosciences, Heidelberg, Germany
| | - Anna Erzberger
- European Molecular Biology Laboratory (EMBL), 69117 Heidelberg, Germany.
| | - Dimitri Fabrèges
- European Molecular Biology Laboratory (EMBL), 69117 Heidelberg, Germany
| | - Rene Snajder
- European Molecular Biology Laboratory (EMBL), 69117 Heidelberg, Germany
| | - Adrian Wolny
- European Molecular Biology Laboratory (EMBL), 69117 Heidelberg, Germany
| | | | | | - Lars Hufnagel
- European Molecular Biology Laboratory (EMBL), 69117 Heidelberg, Germany
| | - Anna Kreshuk
- European Molecular Biology Laboratory (EMBL), 69117 Heidelberg, Germany
| | - Takashi Hiiragi
- European Molecular Biology Laboratory (EMBL), 69117 Heidelberg, Germany; Institute for the Advanced Study of Human Biology (WPI-ASHBi), Kyoto University, 606-8501 Kyoto, Japan.
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18
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Liu Y, Jones C, Coward K. An investigation of mechanisms underlying mouse blastocyst hatching: a ribonucleic acid sequencing study. F&S SCIENCE 2022; 3:35-48. [PMID: 35559994 DOI: 10.1016/j.xfss.2021.12.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 12/17/2021] [Accepted: 12/17/2021] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To investigate the regulatory mechanisms and signaling molecules underlying hatching in mouse embryos. DESIGN Experimental laboratory study using a mouse embryo model. SETTING University-based basic scientific research laboratory. ANIMALS A total of 40 B6C3F1 × B6D2F1 mouse embryos were used in this study. INTERVENTION(S) Frozen/thawed mouse embryos, at the 8-cell stage, were cultured in vitro for 2 days. The resulting hatching and prehatching blastocysts were then used for complementary deoxyribonucleic acid (cDNA) library preparation and ribonucleic acid (RNA) sequencing analysis (n = 8 for each group). Differentially expressed genes were then used for downstream functional analysis. In addition, a list of genes related to developmental progression in humans was used to identify genes that were potentially related to the hatching of human embryos. MAIN OUTCOME MEASURE(S) Differentially expressed genes, enriched Gene Ontology terms and canonical pathways, clustered gene networks, activated upstream regulators, and common genes between a gene list of hatching-related genes in mice and a gene list associated with developmental progression in humans. RESULT(S) A total 275 differentially expressed genes were identified between hatching and prehatching blastocysts: 230 up-regulated and 45 down-regulated genes. Functional enrichment analysis suggested that blastocyst hatching in vitro is an adenosine triphosphate (ATP)-dependent process that involves protein biosynthesis and organization of the cytoskeleton. Furthermore, by regulating cell motility, the RhoA signaling pathway (including Arpc2, Cfl1, Gsn, Pfn1, Tpi1, Grb2, Tmsb10, Enah, and Rnd3 genes) may be a crucial signaling pathway during hatching. We also identified a cluster of genes (Krt8, Krt7, Cldn4, and Aqp3) that exerted functional roles in cell-cell junctions and water homeostasis during hatching. Moreover, some growth factors (angiotensinogen and fibroblast growth factor 2) and endocrine factors (estrogen receptor and prolactin) were predicted to be involved in the regulation of embryo hatching. In addition, we identified 81 potential genes that are potentially involved in the hatching process in human embryos. CONCLUSION(S) Our analysis identified potential genes and molecular regulatory pathways involved in the blastocyst hatching process in mice; we also identified genes that may potentially regulate hatching in human embryos. Our findings enhance our knowledge of embryo development and provide useful information for further exploring the mechanisms underlying embryo hatching.
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Affiliation(s)
- Yaqiong Liu
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Women's Centre, John Radcliffe Hospital, Headington, Oxford, United Kingdom
| | - Celine Jones
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Women's Centre, John Radcliffe Hospital, Headington, Oxford, United Kingdom
| | - Kevin Coward
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Women's Centre, John Radcliffe Hospital, Headington, Oxford, United Kingdom.
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19
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Thowfeequ S, Stower MJ, Srinivas S. Epithelial dynamics during early mouse development. Curr Opin Genet Dev 2022; 72:110-117. [PMID: 34929609 PMCID: PMC7615355 DOI: 10.1016/j.gde.2021.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 11/19/2021] [Accepted: 11/23/2021] [Indexed: 11/03/2022]
Abstract
The first epithelia to arise in an organism face the challenge of maintaining the integrity of the newly formed tissue, while exhibiting the behavioral flexibility required for morphogenetic processes to occur effectively. Epithelial cells integrate biochemical and biomechanical cues, both intrinsic and extrinsic, in order to bring about the molecular changes which determine their morphology, behavior and fate. In this review we highlight recent advances in our understanding of the various dynamic processes that the emergent epithelial cells undergo during the first seven days of mouse development and speculate what the future holds in understanding the mechanistic bases for these processes through integrative approaches.
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Affiliation(s)
- Shifaan Thowfeequ
- University of Oxford, Department of Physiology, Anatomy and Genetics, South Parks Road, Oxford, OX1 3QX, UK
| | - Matthew J Stower
- University of Oxford, Department of Physiology, Anatomy and Genetics, South Parks Road, Oxford, OX1 3QX, UK
| | - Shankar Srinivas
- University of Oxford, Department of Physiology, Anatomy and Genetics, South Parks Road, Oxford, OX1 3QX, UK.
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20
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Shi F, Qiu J, Zhang S, Zhao X, Feng D, Feng X. Exogenous melatonin protects preimplantation embryo development from decabromodiphenyl ethane-induced circadian rhythm disorder and endogenous melatonin reduction. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 292:118445. [PMID: 34737029 DOI: 10.1016/j.envpol.2021.118445] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 10/14/2021] [Accepted: 10/29/2021] [Indexed: 06/13/2023]
Abstract
Decabromodiphenyl ethane (DBDPE) is a novel flame retardant that is widely used in plastics, electronic products, building materials and textiles. Our previous studies have revealed the oocyte toxicity of DBDPE, but the effect of DBDPE on preimplantation embryo development has not been reported. Here, we investigated whether and how DBDPE exposure affects preimplantation embryo development. Adult female mice were orally exposed to DBDPE (0, 5, 50, 500 μg/kg bw/day) for 14 days. First, we found that after DBDPE exposure, mice showed obvious circadian rhythm disorder. Moreover, the development of preimplantation embryos was inhibited in DBDPE-exposed mice after pregnancy. Then, we further explored and revealed that DBDPE exposure reduced the endogenous melatonin (MLT) level during pregnancy, thereby inhibiting the development of preimplantation embryos. Furthermore, we discovered that exogenous MLT supplementation (15 mg/kg bw/day) rescued the inhibition of preimplantation embryo development induced by DBDPE, and a mechanistic study demonstrated that exogenous MLT inhibited the overexpression of ROS and DNA methylation at the 5-position of cytosine (5-mC) in DBDPE-exposed preimplantation embryos. Simultaneously, MLT ameliorated the DBDPE-induced mitochondrial dysfunction by increasing the mitochondrial membrane potential (MMP), ATP, and Trp1 expression. Additionally, MLT restored DBDPE-induced changes in zona pellucida (ZP) hardness and trophectoderm (TE) cortical tension. Finally, the protective effect of MLT on embryos ameliorated the adverse reproductive outcomes (dead fetus, fetus with abnormal liver, fetal weight loss) induced by DBDPE. Collectively, DBDPE induced preimplantation embryo damage leading to adverse reproductive outcomes, and MLT has emerged as a potential tool to rescue adverse reproductive outcomes induced by DBDPE.
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Affiliation(s)
- Feifei Shi
- College of Life Science, The Key Laboratory of Bioactive Materials, Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300071, China
| | - Jinyu Qiu
- The Institute of Robotics and Automatic Information Systems, Nankai University, Tianjin, 300071, China
| | - Shaozhi Zhang
- College of Life Science, The Key Laboratory of Bioactive Materials, Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300071, China
| | - Xin Zhao
- The Institute of Robotics and Automatic Information Systems, Nankai University, Tianjin, 300071, China
| | - Daofu Feng
- Department of General Surgery, Tianjin Medical University General Hospital, No. 154 Anshan Road, Tianjin, 300052, China
| | - Xizeng Feng
- College of Life Science, The Key Laboratory of Bioactive Materials, Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300071, China.
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21
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Fang G, Lu H, Rodriguez de la Fuente L, Law AMK, Lin G, Jin D, Gallego‐Ortega D. Mammary Tumor Organoid Culture in Non-Adhesive Alginate for Luminal Mechanics and High-Throughput Drug Screening. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2102418. [PMID: 34494727 PMCID: PMC8564453 DOI: 10.1002/advs.202102418] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/25/2021] [Indexed: 05/14/2023]
Abstract
Mammary tumor organoids have become a promising in vitro model for drug screening and personalized medicine. However, the dependency on the basement membrane extract (BME) as the growth matrices limits their comprehensive application. In this work, mouse mammary tumor organoids are established by encapsulating tumor pieces in non-adhesive alginate. High-throughput generation of organoids in alginate microbeads is achieved utilizing microfluidic droplet technology. Tumor pieces within the alginate microbeads developed both luminal- and solid-like structures and displayed a high similarity to the original fresh tumor in cellular phenotypes and lineages. The mechanical forces of the luminal organoids in the alginate capsules are analyzed with the theory of the thick-wall pressure vessel (TWPV) model. The luminal pressure of the organoids increase with the lumen growth and can reach 2 kPa after two weeks' culture. Finally, the mammary tumor organoids are treated with doxorubicin and latrunculin A to evaluate their application as a drug screening platform. It is found that the drug response is related to the luminal size and pressures of organoids. This high-throughput culture for mammary tumor organoids may present a promising tool for preclinical drug target validation and personalized medicine.
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Affiliation(s)
- Guocheng Fang
- Institute for Biomedical Materials and DevicesSchool of Mathematical and Physical SciencesUniversity of Technology SydneyBroadway UltimoSydneyNew South Wales2007Australia
| | - Hongxu Lu
- Institute for Biomedical Materials and DevicesSchool of Mathematical and Physical SciencesUniversity of Technology SydneyBroadway UltimoSydneyNew South Wales2007Australia
| | - Laura Rodriguez de la Fuente
- St. Vincent's Clinical SchoolFaculty of MedicineUniversity of New South Wales SydneyDarlinghurstNew South Wales2010Australia
- Garvan Institute of Medical Research384 Victoria StreetDarlinghurstNew South Wales2010Australia
| | - Andrew M. K. Law
- St. Vincent's Clinical SchoolFaculty of MedicineUniversity of New South Wales SydneyDarlinghurstNew South Wales2010Australia
- Garvan Institute of Medical Research384 Victoria StreetDarlinghurstNew South Wales2010Australia
| | - Gungun Lin
- Institute for Biomedical Materials and DevicesSchool of Mathematical and Physical SciencesUniversity of Technology SydneyBroadway UltimoSydneyNew South Wales2007Australia
| | - Dayong Jin
- Institute for Biomedical Materials and DevicesSchool of Mathematical and Physical SciencesUniversity of Technology SydneyBroadway UltimoSydneyNew South Wales2007Australia
- UTS‐SUSTech Joint Research Centre for Biomedical Materials and DevicesDepartment of Biomedical EngineeringSouthern University of Science and TechnologyShenzhenGuangdong518055China
| | - David Gallego‐Ortega
- Institute for Biomedical Materials and DevicesSchool of Mathematical and Physical SciencesUniversity of Technology SydneyBroadway UltimoSydneyNew South Wales2007Australia
- St. Vincent's Clinical SchoolFaculty of MedicineUniversity of New South Wales SydneyDarlinghurstNew South Wales2010Australia
- Garvan Institute of Medical Research384 Victoria StreetDarlinghurstNew South Wales2010Australia
- School of Biomedical EngineeringFaculty of EngineeringUniversity of Technology SydneyBroadway UltimoSydneyNew South Wales2007Australia
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22
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Blastocoel morphogenesis: A biophysics perspective. Semin Cell Dev Biol 2021; 130:12-23. [PMID: 34756494 DOI: 10.1016/j.semcdb.2021.10.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 09/21/2021] [Accepted: 10/08/2021] [Indexed: 11/22/2022]
Abstract
The blastocoel is a fluid-filled cavity characteristic of animal embryos at the blastula stage. Its emergence is commonly described as the result of cleavage patterning, but this historical view conceals a large diversity of mechanisms and overlooks many unsolved questions from a biophysics perspective. In this review, we describe generic mechanisms for blastocoel morphogenesis, rooted in biological literature and simple physical principles. We propose novel directions of study and emphasize the importance to study blastocoel morphogenesis as an evolutionary and physical continuum.
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23
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Herrera-Delgado E, Maître JL. A theoretical understanding of mammalian preimplantation development. Cells Dev 2021; 168:203752. [PMID: 34634520 DOI: 10.1016/j.cdev.2021.203752] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 09/30/2021] [Accepted: 09/30/2021] [Indexed: 11/28/2022]
Abstract
The blastocyst has long been a hallmark system of study in developmental biology due to its importance in mammalian development and clinical relevance for assisted reproductive technologies. In recent years, the blastocyst is emerging as a system of study for mathematical modelling. In this review, we compile, to our knowledge, all models describing preimplantation development. Coupled with experiments, these models have provided insight regarding the morphogenesis and cell-fate specification throughout preimplantation development. In the case of cell-fate specification, theoretical models have provided mechanisms explaining how proportion of cell types are established and maintained when confronted to perturbations. For cell-shape based models, they have described quantitatively how mechanical forces sculpt the blastocyst and even predicted how morphogenesis could be manipulated. As theoretical biology develops, we believe the next critical stage in modelling involves an integration of cell fate and mechanics to provide integrative models of development at distinct spatiotemporal scales. We discuss how, building on a balanced base of mechanical and chemical models, the preimplantation embryo will play a key role in integrating these two faces of the same coin.
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Affiliation(s)
| | - Jean-Léon Maître
- Institut Curie, PSL Research University, CNRS UMR3215, INSERM U934, Paris, France.
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24
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Matsuzaki S. Mechanobiology of the female reproductive system. Reprod Med Biol 2021; 20:371-401. [PMID: 34646066 PMCID: PMC8499606 DOI: 10.1002/rmb2.12404] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/09/2021] [Accepted: 07/12/2021] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Mechanobiology in the field of human female reproduction has been extremely challenging technically and ethically. METHODS The present review provides the current knowledge on mechanobiology of the female reproductive system. This review focuses on the early phases of reproduction from oocyte development to early embryonic development, with an emphasis on current progress. MAIN FINDINGS RESULTS Optimal, well-controlled mechanical cues are required for female reproductive system physiology. Many important questions remain unanswered; whether and how mechanical imbalances among the embryo, decidua, and uterine muscle contractions affect early human embryonic development, whether the biomechanical properties of oocytes/embryos are potential biomarkers for selecting high-quality oocytes/embryos, whether mechanical properties differ between the two major compartments of the ovary (cortex and medulla) in normally ovulating human ovaries, whether durotaxis is involved in several processes in addition to embryonic development. Progress in mechanobiology is dependent on development of technologies that enable precise physical measurements. CONCLUSION More studies are needed to understand the roles of forces and changes in the mechanical properties of female reproductive system physiology. Recent and future technological advancements in mechanobiology research will help us understand the role of mechanical forces in female reproductive system disorders/diseases.
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Affiliation(s)
- Sachiko Matsuzaki
- CHU Clermont‐FerrandChirurgie GynécologiqueClermont‐FerrandFrance
- Université Clermont AuvergneInstitut Pascal, UMR6602, CNRS/UCA/SIGMAClermont‐FerrandFrance
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25
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An L, Liu Y, Li M, Liu Z, Wang Z, Dai Y, Presicce GA, Du F. Site specificity of blastocyst hatching significantly influences pregnancy outcomes in mice. FASEB J 2021; 35:e21812. [PMID: 34411354 DOI: 10.1096/fj.202100653r] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 06/25/2021] [Accepted: 07/07/2021] [Indexed: 11/11/2022]
Abstract
Blastocysts hatch from the zona pellucida (ZP) to enable implantation into the uterine endometrial epithelium, but little is known regarding the effect of hatching sites on pregnancy outcomes. Murine hatching embryos were categorized into five groups based on initial trophectoderm projection (TEP)/ZP position corresponding to the inner cell mass center. In blastocysts (3.5 dpc) post-12 hours in vitro culture, TEP rates of A-site (44.4%) and B-site (38.6%) embryos were higher than those of C-site (12.5%) and D-site (3.1%) embryos, while the O-site (1.4%) was the lowest (P < .05). Post-ET A-site (55.6%) and B-site (65.6%) birth rates were higher than those of C-site embryos (21.3%) and controls (P < .05). Furthermore, live birth rate of B-site embryos remained higher than C-site embryos (68.8% vs 31.3%; P < .05) when both were transferred into the same recipients. Different TEP site blastocysts exhibited different implantation competences: the implantation rate of C-site embryos was lower than that of both A- and B-site groups (67.7% vs 84.3% and 83.2%, respectively; P < .05) at 2 days post-ET. C-site embryos also had a distinctly higher ratio of developmental defects (47.5%) than A- and B-site embryos (22.5% and 14.6%, respectively), with implantation failure mainly associated with poor birth rate, a finding corroborated by differential gene expression analysis such as LIF, LIFR, and S100a9. Surprisingly, acidified Tyrode's solution (AAH)-treated B-site blastocysts had a significantly increased birth rate (77.1%) than C-site (55.3%) and controls (43.4%). Site specificity and differential gene expression during embryo hatching can be applied in ART screening. More importantly, assisted hatching by AAH is effective and feasible for improving pregnancy and term development, particularly at the B-site, for humans and in animal husbandry.
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Affiliation(s)
- Liyou An
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China.,Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi, China
| | - Yanhong Liu
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Mingyang Li
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Zhihui Liu
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Zhisong Wang
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Yujian Dai
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | | | - Fuliang Du
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
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26
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Abstract
The cytoskeleton - comprising actin filaments, microtubules and intermediate filaments - serves instructive roles in regulating cell function and behaviour during development. However, a key challenge in cell and developmental biology is to dissect how these different structures function and interact in vivo to build complex tissues, with the ultimate aim to understand these processes in a mammalian organism. The preimplantation mouse embryo has emerged as a primary model system for tackling this challenge. Not only does the mouse embryo share many morphological similarities with the human embryo during its initial stages of life, it also permits the combination of genetic manipulations with live-imaging approaches to study cytoskeletal dynamics directly within an intact embryonic system. These advantages have led to the discovery of novel cytoskeletal structures and mechanisms controlling lineage specification, cell-cell communication and the establishment of the first forms of tissue architecture during development. Here we highlight the diverse organization and functions of each of the three cytoskeletal filaments during the key events that shape the early mammalian embryo, and discuss how they work together to perform key developmental tasks, including cell fate specification and morphogenesis of the blastocyst. Collectively, these findings are unveiling a new picture of how cells in the early embryo dynamically remodel their cytoskeleton with unique spatial and temporal precision to drive developmental processes in the rapidly changing in vivo environment.
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27
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Firmin J, Maître JL. Morphogenesis of the human preimplantation embryo: bringing mechanics to the clinics. Semin Cell Dev Biol 2021; 120:22-31. [PMID: 34253437 DOI: 10.1016/j.semcdb.2021.07.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 06/15/2021] [Accepted: 07/01/2021] [Indexed: 12/19/2022]
Abstract
During preimplantation development, the human embryo forms the blastocyst, the structure enabling uterine implantation. The blastocyst consists of an epithelial envelope, the trophectoderm, encompassing a fluid-filled lumen, the blastocoel, and a cluster of pluripotent stem cells, the inner cell mass. This specific architecture is crucial for the implantation and further development of the human embryo. Furthermore, the morphology of the human embryo is a prime determinant for clinicians to assess the implantation potential of in vitro fertilized human embryos, which constitutes a key aspect of assisted reproduction technology. Therefore, it is crucial to understand how the human embryo builds the blastocyst. As any material, the human embryo changes shape under the action of forces. Here, we review recent advances in our understanding of the mechanical forces shaping the blastocyst. We discuss the cellular processes responsible for generating morphogenetic forces that were studied mostly in the mouse and review the literature on human embryos to see which of them may be conserved. Based on the specific morphological defects commonly observed in clinics during human preimplantation development, we discuss how mechanical forces and their underlying cellular processes may be affected. Together, we propose that bringing tissue mechanics to the clinics will advance our understanding of human preimplantation development, as well as our ability to help infertile couples to have babies.
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Affiliation(s)
- Julie Firmin
- Institut Curie, PSL Research University, Sorbonne Université, CNRS UMR3215, INSERM, U934 Paris, France
| | - Jean-Léon Maître
- Institut Curie, PSL Research University, Sorbonne Université, CNRS UMR3215, INSERM, U934 Paris, France.
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28
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Forsyth JE, Al-Anbaki AH, de la Fuente R, Modare N, Perez-Cortes D, Rivera I, Seaton Kelly R, Cotter S, Plusa B. IVEN: A quantitative tool to describe 3D cell position and neighbourhood reveals architectural changes in FGF4-treated preimplantation embryos. PLoS Biol 2021; 19:e3001345. [PMID: 34310594 PMCID: PMC8341705 DOI: 10.1371/journal.pbio.3001345] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 08/05/2021] [Accepted: 07/01/2021] [Indexed: 11/30/2022] Open
Abstract
Architectural changes at the cellular and organism level are integral and necessary to successful development and growth. During mammalian preimplantation development, cells reduce in size and the architecture of the embryo changes significantly. Such changes must be coordinated correctly to ensure continued development of the embryo and, ultimately, a successful pregnancy. However, the nature of such transformations is poorly defined during mammalian preimplantation development. In order to quantitatively describe changes in cell environment and organism architecture, we designed Internal Versus External Neighbourhood (IVEN). IVEN is a user-interactive, open-source pipeline that classifies cells into different populations based on their position and quantifies the number of neighbours of every cell within a dataset in a 3D environment. Through IVEN-driven analyses, we show how transformations in cell environment, defined here as changes in cell neighbourhood, are related to changes in embryo geometry and major developmental events during preimplantation mammalian development. Moreover, we demonstrate that modulation of the FGF pathway alters spatial relations of inner cells and neighbourhood distributions, leading to overall changes in embryo architecture. In conjunction with IVEN-driven analyses, we uncover differences in the dynamic of cell size changes over the preimplantation period and determine that cells within the mammalian embryo initiate growth phase only at the time of implantation.
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Affiliation(s)
- Jessica E. Forsyth
- Faculty of Biology, Medicine and Health (FBMH), Division of Developmental Biology & Medicine, Michael Smith Building, University of Manchester, Manchester, United Kingdom
- School of Mathematics, Alan Turing Building, University of Manchester, Manchester, United Kingdom
| | - Ali H. Al-Anbaki
- Faculty of Biology, Medicine and Health (FBMH), Division of Developmental Biology & Medicine, Michael Smith Building, University of Manchester, Manchester, United Kingdom
| | - Roberto de la Fuente
- Faculty of Biology, Medicine and Health (FBMH), Division of Developmental Biology & Medicine, Michael Smith Building, University of Manchester, Manchester, United Kingdom
- Department of Experimental Embryology, Institute of Genetics and Animal Biotechnology, Polish Academy of Sciences, Jastrzębiec, Poland
| | - Nikkinder Modare
- Faculty of Biology, Medicine and Health (FBMH), Division of Developmental Biology & Medicine, Michael Smith Building, University of Manchester, Manchester, United Kingdom
| | - Diego Perez-Cortes
- Faculty of Biology, Medicine and Health (FBMH), Division of Developmental Biology & Medicine, Michael Smith Building, University of Manchester, Manchester, United Kingdom
| | - Isabel Rivera
- Faculty of Biology, Medicine and Health (FBMH), Division of Developmental Biology & Medicine, Michael Smith Building, University of Manchester, Manchester, United Kingdom
| | - Rowena Seaton Kelly
- Faculty of Biology, Medicine and Health (FBMH), Division of Developmental Biology & Medicine, Michael Smith Building, University of Manchester, Manchester, United Kingdom
| | - Simon Cotter
- School of Mathematics, Alan Turing Building, University of Manchester, Manchester, United Kingdom
| | - Berenika Plusa
- Faculty of Biology, Medicine and Health (FBMH), Division of Developmental Biology & Medicine, Michael Smith Building, University of Manchester, Manchester, United Kingdom
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29
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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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30
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Pathak M, Vani V, Seshagiri PB. Expression and function of interleukin-1β is required for hamster blastocyst hatching: Involvement of hatching-associated cathepsin proteases. Mol Reprod Dev 2021; 88:274-286. [PMID: 33719101 DOI: 10.1002/mrd.23464] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/16/2021] [Accepted: 02/22/2021] [Indexed: 11/06/2022]
Abstract
In mammals, the phenomenon of blastocyst hatching is an essential prerequisite for successful implantation. Blastocyst hatching is regulated by various molecules. Of them, cytokines, expressed by preimplantation embryos, are thought to be functionally important in blastocyst development and hatching, but their mechanistic roles are not clearly understood. Here, we examined the involvement of two cytokines, namely, interleukin-1β (IL-1β) and its natural antagonist, IL-1ra, in blastocyst hatching in the golden hamster. Blastocysts expressed both cytokines and their receptor, IL-1rt1. Supplementation of IL-1β to cultured eight-cell embryos improved blastocyst hatching (84.1% ± 4.2% vs. 66.6% ± 6.8%; treated vs. control). This improvement was diminished by IL-1ra treatment (23.6% ± 12.9% vs. 76.4% ± 12.9%; treated vs. control). Interestingly, IL-1β-treated embryos showed increased messenger RNA expression of zonalytic proteases, that is, cathepsin-L and -B by 1.9 ± 0.5- and 3.5 ± 0.1-folds, respectively. This was accompanied by their increased enzyme activities; cathepsin-L by 2.8 ± 0.7 fold and -B by 2.3 ± 0.7-fold. Strikingly, proteases and IL-1β were intensely colocalized to trophectodermal projections of hatching blastocysts. This is the first report to show the involvement of embryonic IL-1β in regulating hatching-associated proteases required for blastocyst hatching.
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Affiliation(s)
- Madhulika Pathak
- Department of Molecular Reproduction, Development, and Genetics, Indian Institute of Science, Bangalore, India
| | - Venkatappa Vani
- Department of Molecular Reproduction, Development, and Genetics, Indian Institute of Science, Bangalore, India
| | - Polani B Seshagiri
- Department of Molecular Reproduction, Development, and Genetics, Indian Institute of Science, Bangalore, India
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31
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García-Jiménez M, Rink K, Mestres E, Vanrell I, Calderón G, Costa-Borges N. Evaluation of the impact of laser-assisted hatching techniques on the hatching process of mouse blastocysts using time-lapse microscopy. F&S SCIENCE 2021; 2:43-49. [PMID: 35559763 DOI: 10.1016/j.xfss.2020.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 12/15/2020] [Accepted: 12/17/2020] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To study the effect of zona opening (ZO) and 2 zona thinning (ZT) techniques on the hatching process of mouse embryos using a last-generation laser system and time-lapse microscopy (TLM). DESIGN Prospective randomized study. SETTING Private research center. ANIMALS A total of 267 F1 hybrid (B6/CBA) mice embryos were included. INTERVENTION(S) Morulae were randomly selected and the zona pellucida (ZP) manipulated using a laser system according to 4 experimental groups: control (ZP intact, n = 59), ZO (25 μm hole, n = 70), ZT25 (25% perimeter thinned, n = 71), and ZT35 (35% perimeter thinned, n = 67). Embryo development was monitored by TLM until day 6. MAIN OUTCOME MEASURE(S) Time to first breach the ZP, hatching time, time to complete hatching, multiple breaching, multiple hatching, loss of cells, hole size, and embryo quality were analyzed. RESULT(S) No significant differences in the proportion of completely hatched embryos were found among groups. However, the time (average hours ± SD) to complete hatching was significantly delayed in the control group compared with all laser-treated groups: 118.3 ± 9.5 hours in the ZT25 group, 116.6 ± 8.7 hours in the ZT35 group, and 120.4 ± 9.9 hours in the ZO group. The applied laser techniques did not interfere with the quality of the blastocysts at day 5/6 of culture. CONCLUSION(S) ZO, ZT25, and ZT35 embryos hatched significantly earlier than the zona intact group without increasing the multiple hatching rates, suggesting an improvement of the hatching process. This study found that the pattern of the hatching process after ZT and ZO differs.
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Affiliation(s)
| | - Klaus Rink
- Embryotools R&D Centre Barcelona, Parc Científic de Barcelona, Barcelona, Spain
| | - Enric Mestres
- Embryotools R&D Centre Barcelona, Parc Científic de Barcelona, Barcelona, Spain
| | - Ivette Vanrell
- Embryotools R&D Centre Barcelona, Parc Científic de Barcelona, Barcelona, Spain
| | - Gloria Calderón
- Embryotools R&D Centre Barcelona, Parc Científic de Barcelona, Barcelona, Spain
| | - Nuno Costa-Borges
- Embryotools R&D Centre Barcelona, Parc Científic de Barcelona, Barcelona, Spain.
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32
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Hawkins J, Miao X, Cui W, Sun Y. Biophysical optimization of preimplantation embryo culture: what mechanics can offer ART. Mol Hum Reprod 2021; 27:gaaa087. [PMID: 33543291 PMCID: PMC8453600 DOI: 10.1093/molehr/gaaa087] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 11/13/2020] [Indexed: 12/24/2022] Open
Abstract
Owing to the rise of ART and mounting reports of epigenetic modification associated with them, an understanding of optimal embryo culture conditions and reliable indicators of embryo quality are highly sought after. There is a growing body of evidence that mechanical biomarkers can rival embryo morphology as an early indicator of developmental potential and that biomimetic mechanical cues can promote healthy development in preimplantation embryos. This review will summarize studies that investigate the role of mechanics as both indicators and promoters of mammalian preimplantation embryo development and evaluate their potential for improving future embryo culture systems.
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Affiliation(s)
- Jamar Hawkins
- Department of Mechanical and Industrial Engineering, University of Massachusetts, Amherst, MA, USA
| | - Xiaosu Miao
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA
| | - Wei Cui
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA
| | - Yubing Sun
- Department of Mechanical and Industrial Engineering, University of Massachusetts, Amherst, MA, USA
- Department of Biomedical Engineering, University of Massachusetts, Amherst, MA, USA
- Department of Chemical Engineering, University of Massachusetts, Amherst, MA, USA
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33
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Goodwin K, Nelson CM. Mechanics of Development. Dev Cell 2020; 56:240-250. [PMID: 33321105 DOI: 10.1016/j.devcel.2020.11.025] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 10/07/2020] [Accepted: 11/24/2020] [Indexed: 01/06/2023]
Abstract
Mechanical forces are integral to development-from the earliest stages of embryogenesis to the construction and differentiation of complex organs. Advances in imaging and biophysical tools have allowed us to delve into the developmental mechanobiology of increasingly complex organs and organisms. Here, we focus on recent work that highlights the diversity and importance of mechanical influences during morphogenesis. Developing tissues experience intrinsic mechanical signals from active forces and changes to tissue mechanical properties as well as extrinsic mechanical signals, including constraint and compression, pressure, and shear forces. Finally, we suggest promising avenues for future work in this rapidly expanding field.
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Affiliation(s)
- Katharine Goodwin
- Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ 08544, USA
| | - Celeste M Nelson
- Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ 08544, USA; Department of Molecular Biology, Princeton University, Princeton, NJ 08544, USA.
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Li Y, Konstantopoulos K, Zhao R, Mori Y, Sun SX. The importance of water and hydraulic pressure in cell dynamics. J Cell Sci 2020; 133:133/20/jcs240341. [PMID: 33087485 DOI: 10.1242/jcs.240341] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
All mammalian cells live in the aqueous medium, yet for many cell biologists, water is a passive arena in which proteins are the leading players that carry out essential biological functions. Recent studies, as well as decades of previous work, have accumulated evidence to show that this is not the complete picture. Active fluxes of water and solutes of water can play essential roles during cell shape changes, cell motility and tissue function, and can generate significant mechanical forces. Moreover, the extracellular resistance to water flow, known as the hydraulic resistance, and external hydraulic pressures are important mechanical modulators of cell polarization and motility. For the cell to maintain a consistent chemical environment in the cytoplasm, there must exist an intricate molecular system that actively controls the cell water content as well as the cytoplasmic ionic content. This system is difficult to study and poorly understood, but ramifications of which may impact all aspects of cell biology from growth to metabolism to development. In this Review, we describe how mammalian cells maintain the cytoplasmic water content and how water flows across the cell surface to drive cell movement. The roles of mechanical forces and hydraulic pressure during water movement are explored.
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Affiliation(s)
- Yizeng Li
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA.,Department of Mechanical Engineering, Kennesaw State University. Marietta, GA 30060, USA
| | - Konstantinos Konstantopoulos
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA.,Institute of NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Runchen Zhao
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA.,Institute of NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Yoichiro Mori
- Department of Mathematics and Department of Biology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Sean X Sun
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA .,Institute of NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA.,Center for Cell Dynamics, Johns Hopkins University, Baltimore, MD 21218, USA
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Royer C, Leonavicius K, Kip A, Fortin D, Nandi K, Vincent A, Jones C, Child T, Coward K, Graham C, Srinivas S. Establishment of a relationship between blastomere geometry and YAP localisation during compaction. Development 2020; 147:dev.189449. [PMID: 32928909 PMCID: PMC7561472 DOI: 10.1242/dev.189449] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 09/07/2020] [Indexed: 01/08/2023]
Abstract
Precise patterning within the three-dimensional context of tissues, organs and embryos implies that cells can sense their relative position. During preimplantation development, outside and inside cells rely on apicobasal polarity and the Hippo pathway to choose their fate. Despite recent findings suggesting that mechanosensing might be central to this process, the relationship between blastomere geometry (i.e. shape and position) and the Hippo pathway effector YAP remains unknown. We used a highly quantitative approach to analyse information on the geometry and YAP localisation of individual blastomeres of mouse and human embryos. We identified the proportion of exposed cell surface area as most closely correlating with the nuclear localisation of YAP. To test this relationship, we developed several hydrogel-based approaches to alter blastomere geometry in cultured embryos. Unbiased clustering analyses of blastomeres from such embryos revealed that this relationship emerged during compaction. Our results therefore pinpoint the time during early embryogenesis when cells acquire the ability to sense changes in geometry and provide a new framework for how cells might integrate signals from different membrane domains to assess their relative position within the embryo. Highlighted Article: Localisation of YAP, a key factor during the first cell fate decision, is linked to individual blastomere geometry within the three-dimentional environment of the preimplantation embryo.
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Affiliation(s)
- Christophe Royer
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford OX1 3QX, UK
| | - Karolis Leonavicius
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford OX1 3QX, UK
| | - Annemarie Kip
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford OX1 3QX, UK
| | - Deborah Fortin
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford OX1 3QX, UK
| | - Kirtirupa Nandi
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford OX1 3QX, UK
| | - Anna Vincent
- Oxford Fertility, Institute of Reproductive Sciences, Oxford OX4 2HW, UK
| | - Celine Jones
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Oxford OX3 9DU, UK
| | - Tim Child
- Oxford Fertility, Institute of Reproductive Sciences, Oxford OX4 2HW, UK.,Nuffield Department of Women's and Reproductive Health, University of Oxford, Oxford OX3 9DU, UK
| | - Kevin Coward
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Oxford OX3 9DU, UK
| | - Chris Graham
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Oxford OX3 9DU, UK
| | - Shankar Srinivas
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford OX1 3QX, UK
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36
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Advanced glycation end products present in the obese uterine environment compromise preimplantation embryo development. Reprod Biomed Online 2020; 41:757-766. [PMID: 32972872 DOI: 10.1016/j.rbmo.2020.07.026] [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: 03/02/2020] [Revised: 06/25/2020] [Accepted: 07/28/2020] [Indexed: 11/21/2022]
Abstract
RESEARCH QUESTION Proinflammatory advanced glycation end products (AGE), highly elevated within the uterine cavity of obese women, compromise endometrial function. Do AGE also impact preimplantation embryo development and function? DESIGN Mouse embryos were cultured in AGE equimolar to uterine fluid concentrations in lean (1-2 µmol/l) or obese (4-8 µmol/l) women. Differential nuclear staining identified cell allocation to inner cell mass (ICM) and trophectoderm (TE) (day 4 and 5 of culture). Cell apoptosis was examined by terminal deoxynucleotidyl transferase-mediated dUDP nick-end labelling assay (day 5). Day 4 embryos were placed on bovine serum albumin/fibronectin-coated plates and embryo outgrowth assessed 93 h later as a marker of implantation potential. AGE effects on cell lineage allocation were reassessed following pharmacological interventions: either 12.5 nmol/l AGE receptor (RAGE) antagonist; 0.1 nmol/l metformin; or combination of 10 µmol/l acetyl-l-carnitine, 10 µmol/l N-acetyl-l-cysteine, and 5 µmol/l alpha-lipoic acid. RESULTS 8 µmol/l AGE reduced: hatching rates (day 5, P < 0.01); total cell number (days 4, 5, P < 0.01); TE cell number (day 5, P < 0.01), and embryo outgrowth (P < 0.01). RAGE antagonism improved day 5 TE cell number. CONCLUSIONS AGE equimolar with the obese uterine environment detrimentally impact preimplantation embryo development. In natural cycles, prolonged exposure to AGE may developmentally compromise embryos, whereas following assisted reproductive technology cycles, placement of a high-quality embryo into an adverse 'high AGE' environment may impede implantation success. The modest impact of short-term RAGE antagonism on improving embryo outcomes indicates preconception AGE reduction via pharmacological or dietary intervention may improve reproductive outcomes for overweight/obese women.
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37
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Lim HYG, Alvarez YD, Gasnier M, Wang Y, Tetlak P, Bissiere S, Wang H, Biro M, Plachta N. Keratins are asymmetrically inherited fate determinants in the mammalian embryo. Nature 2020; 585:404-409. [PMID: 32848249 DOI: 10.1038/s41586-020-2647-4] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 07/30/2020] [Indexed: 11/08/2022]
Abstract
To implant in the uterus, the mammalian embryo first specifies two cell lineages: the pluripotent inner cell mass that forms the fetus, and the outer trophectoderm layer that forms the placenta1. In many organisms, asymmetrically inherited fate determinants drive lineage specification2, but this is not thought to be the case during early mammalian development. Here we show that intermediate filaments assembled by keratins function as asymmetrically inherited fate determinants in the mammalian embryo. Unlike F-actin or microtubules, keratins are the first major components of the cytoskeleton that display prominent cell-to-cell variability, triggered by heterogeneities in the BAF chromatin-remodelling complex. Live-embryo imaging shows that keratins become asymmetrically inherited by outer daughter cells during cell division, where they stabilize the cortex to promote apical polarization and YAP-dependent expression of CDX2, thereby specifying the first trophectoderm cells of the embryo. Together, our data reveal a mechanism by which cell-to-cell heterogeneities that appear before the segregation of the trophectoderm and the inner cell mass influence lineage fate, via differential keratin regulation, and identify an early function for intermediate filaments in development.
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Affiliation(s)
- Hui Yi Grace Lim
- Institute of Molecular and Cell Biology, ASTAR, Singapore, Singapore
| | - Yanina D Alvarez
- Institute of Molecular and Cell Biology, ASTAR, Singapore, Singapore
| | - Maxime Gasnier
- Institute of Molecular and Cell Biology, ASTAR, Singapore, Singapore
| | - Yiming Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Science, Beijing, China
| | - Piotr Tetlak
- Institute of Molecular and Cell Biology, ASTAR, Singapore, Singapore
| | | | - Hongmei Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Science, Beijing, China
| | - Maté Biro
- EMBL Australia, Single Molecule Science Node, School of Medical Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Nicolas Plachta
- Institute of Molecular and Cell Biology, ASTAR, Singapore, Singapore.
- Department of Cell and Developmental Biology and Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
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Płusa B, Piliszek A. Common principles of early mammalian embryo self-organisation. Development 2020; 147:147/14/dev183079. [PMID: 32699138 DOI: 10.1242/dev.183079] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Pre-implantation mammalian development unites extreme plasticity with a robust outcome: the formation of a blastocyst, an organised multi-layered structure ready for implantation. The process of blastocyst formation is one of the best-known examples of self-organisation. The first three cell lineages in mammalian development specify and arrange themselves during the morphogenic process based on cell-cell interactions. Despite decades of research, the unifying principles driving early mammalian development are still not fully defined. Here, we discuss the role of physical forces, and molecular and cellular mechanisms, in driving self-organisation and lineage formation that are shared between eutherian mammals.
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Affiliation(s)
- Berenika Płusa
- Faculty of Biology, Medicine and Health (FBMH), Division of Developmental Biology & Medicine, University of Manchester, Michael Smith Building, Oxford Road, Manchester, M13 9PT, UK
| | - Anna Piliszek
- Department of Experimental Embryology, Institute of Genetics and Animal Biotechnology, Polish Academy of Sciences, Jastrzebiec, Postepu 36A, 05-552 Magdalenka, Poland
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39
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Özgüç Ö, Maître JL. Multiscale morphogenesis of the mouse blastocyst by actomyosin contractility. Curr Opin Cell Biol 2020; 66:123-129. [PMID: 32711300 DOI: 10.1016/j.ceb.2020.05.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/20/2020] [Accepted: 05/05/2020] [Indexed: 01/31/2023]
Abstract
During preimplantation development, the mouse embryo forms the blastocyst, which consists of a squamous epithelium enveloping a fluid-filled lumen and a cluster of pluripotent cells. The shaping of the blastocyst into its specific architecture is a prerequisite to implantation and further development of the embryo. Recent studies identified the central role of the actomyosin cortex in generating the forces driving the successive steps of blastocyst morphogenesis. As seen in other developing animals, actomyosin functions across spatial scales from the subcellular to the tissue levels. In addition, the slow development of the mouse embryo reveals that actomyosin contractility operates at multiple timescales with periodic cortical waves of contraction every ∼80 s and tissue remodeling over hours.
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Affiliation(s)
- Özge Özgüç
- Institut Curie, 26, rue d'Ulm - 75248 Paris Cedex 05 - France
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40
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Chan CJ, Hiiragi T. Integration of luminal pressure and signalling in tissue self-organization. Development 2020; 147:147/5/dev181297. [DOI: 10.1242/dev.181297] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
ABSTRACT
Many developmental processes involve the emergence of intercellular fluid-filled lumina. This process of luminogenesis results in a build up of hydrostatic pressure and signalling molecules in the lumen. However, the potential roles of lumina in cellular functions, tissue morphogenesis and patterning have yet to be fully explored. In this Review, we discuss recent findings that describe how pressurized fluid expansion can provide both mechanical and biochemical cues to influence cell proliferation, migration and differentiation. We also review emerging techniques that allow for precise quantification of fluid pressure in vivo and in situ. Finally, we discuss the intricate interplay between luminogenesis, tissue mechanics and signalling, which provide a new dimension for understanding the principles governing tissue self-organization in embryonic development.
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Affiliation(s)
- Chii J. Chan
- European Molecular Biology Laboratory, 69117 Heidelberg, Germany
| | - Takashi Hiiragi
- European Molecular Biology Laboratory, 69117 Heidelberg, Germany
- Institute for the Advanced Study of Human Biology (WPI-ASHBi), Kyoto University, Kyoto, 606-8501, Japan
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41
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Yang J, Duan X, Fraser AK, Choudhury MI, Ewald AJ, Li R, Sun SX. Microscale pressure measurements based on an immiscible fluid/fluid interface. Sci Rep 2019; 9:20044. [PMID: 31882951 PMCID: PMC6934680 DOI: 10.1038/s41598-019-56573-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 11/27/2019] [Indexed: 12/20/2022] Open
Abstract
A method of microscale pressure measurement based on immiscible fluid/fluid interface is proposed. This method utilizes observed curvature changes in a fluid/fluid interface, and can accurately report hydraulic pressure in fluids at length scales of 10 microns. The method is especially suited for measuring fluid pressure in micro-scale biological samples. Using this method, we probe fluid pressure build up in epithelial domes, murine mammary gland organoids embedded in hydrogel, and lumen pressure in the developing mouse embryo. Results reveal that the pressure developed across epithelial barriers is on the order of 100~300 Pa, and is modulated by ion channel activity.
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Affiliation(s)
- Jing Yang
- Department of Mechanical Engineering, The Johns Hopkins University, Baltimore, MD, 21218, USA.,School of Physical Science and Technology, Lanzhou University, Lanzhou, Gansu, 730000, China
| | - Xing Duan
- Center for Cell Dynamics, Department of Cell Biology, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Andrew K Fraser
- Center for Cell Dynamics, Department of Cell Biology, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Mohammad Ikbal Choudhury
- Department of Mechanical Engineering, The Johns Hopkins University, Baltimore, MD, 21218, USA.,Institute of NanoBioTechnology (INBT), The Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Andrew J Ewald
- Center for Cell Dynamics, Department of Cell Biology, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Rong Li
- Center for Cell Dynamics, Department of Cell Biology, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Sean X Sun
- Department of Mechanical Engineering, The Johns Hopkins University, Baltimore, MD, 21218, USA. .,Institute of NanoBioTechnology (INBT), The Johns Hopkins University, Baltimore, MD, 21218, USA.
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42
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Motegi F, Plachta N, Viasnoff V. Novel approaches to link apicobasal polarity to cell fate specification. Curr Opin Cell Biol 2019; 62:78-85. [PMID: 31731147 DOI: 10.1016/j.ceb.2019.09.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 09/19/2019] [Accepted: 09/26/2019] [Indexed: 12/26/2022]
Abstract
Understanding the development of apicobasal polarity (ABP) is a long-standing problem in biology. The molecular components involved in the development and maintenance of APB have been largely identified and are known to have ubiquitous roles across organisms. Our knowledge of the functional consequences of ABP establishment and maintenance is far less comprehensive. Recent studies using novel experimental approaches and cellular models have revealed a growing link between ABP and the genetic program of cell lineage. This mini-review describes some of the most recent advances in this new field, highlighting examples from Caenorhabditis elegans and mouse embryos, human pluripotent stem cells, and epithelial cells. We also speculate on the most interesting and challenging avenues that can be explored.
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Affiliation(s)
- Fumio Motegi
- Department of Biological Sciences, National University of Singapore, 117583, Singapore; Mechanobiology Institute, National University of Singapore, 117 411, Singapore; Temasek Life-sciences Laboratory, 117604, Singapore; Contributed equally
| | - Nicolas Plachta
- Institute of Molecular and Cell Biology, ASTAR, Singapore; Contributed equally
| | - Virgile Viasnoff
- Department of Biological Sciences, National University of Singapore, 117583, Singapore; Mechanobiology Institute, National University of Singapore, 117 411, Singapore; CNRS, 117411, Singapore; Contributed equally.
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43
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Schliffka MF, Maître JL. Stay hydrated: basolateral fluids shaping tissues. Curr Opin Genet Dev 2019; 57:70-77. [DOI: 10.1016/j.gde.2019.06.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 06/15/2019] [Accepted: 06/21/2019] [Indexed: 01/29/2023]
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44
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Hydraulic control of mammalian embryo size and cell fate. Nature 2019; 571:112-116. [PMID: 31189957 DOI: 10.1038/s41586-019-1309-x] [Citation(s) in RCA: 174] [Impact Index Per Article: 34.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 05/21/2019] [Indexed: 11/08/2022]
Abstract
Size control is fundamental in tissue development and homeostasis1,2. Although the role of cell proliferation in these processes has been widely studied, the mechanisms that control embryo size-and how these mechanisms affect cell fate-remain unknown. Here we use the mouse blastocyst as a model to unravel a key role of fluid-filled lumen in the control of embryo size and specification of cell fate. We find that there is a twofold increase in lumenal pressure during blastocyst development, which translates into a concomitant increase in cell cortical tension and tissue stiffness of the trophectoderm that lines the lumen. Increased cortical tension leads to vinculin mechanosensing and maturation of functional tight junctions, which establishes a positive feedback loop to accommodate lumen growth. When the cortical tension reaches a critical threshold, cell-cell adhesion cannot be sustained during mitotic entry, which leads to trophectoderm rupture and blastocyst collapse. A simple theory of hydraulically gated oscillations recapitulates the observed dynamics of size oscillations, and predicts the scaling of embryo size with tissue volume. This theory further predicts that disrupted tight junctions or increased tissue stiffness lead to a smaller embryo size, which we verified by biophysical, embryological, pharmacological and genetic perturbations. Changes in lumenal pressure and size can influence the cell division pattern of the trophectoderm, and thereby affect cell allocation and fate. Our study reveals how lumenal pressure and tissue mechanics control embryo size at the tissue scale, which is coupled to cell position and fate at the cellular scale.
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Ilina IV, Khramova YV, Filatov MA, Sitnikov DS. Application of femtosecond laser microsurgery in assisted reproductive technologies for preimplantation embryo tagging. BIOMEDICAL OPTICS EXPRESS 2019; 10:2985-2995. [PMID: 31259068 PMCID: PMC6583350 DOI: 10.1364/boe.10.002985] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 05/16/2019] [Accepted: 05/18/2019] [Indexed: 05/19/2023]
Abstract
Femtosecond laser pulses were applied for precise alphanumeric code engraving on the zona pellucida (ZP) of mouse zygotes for individual embryo marking and their identification. The optimal range of laser pulse energies required for safe ZP microsurgery has been determined. ZP was marked with codes in three different planes to simplify the process of embryo identification. No decrease in developmental rates and no morphological changes of embryos post laser-assisted engraving have been observed. ZP thickness of embryos post laser-assisted code engraving has been shown to differ significantly from that of control group embryos at the hatching stage. Due to moderate ZP thinning as compared to its initial width at 0.5 dpc (days post coitum), readability of the code degrades slightly and it still remains recognizable even at hatching stage. Our results demonstrate that application of femtosecond laser radiation could be an effective approach for noninvasive direct embryo tagging, enabling embryo identification for the whole period of preimplantation development.
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Affiliation(s)
- Inna V Ilina
- Joint Institute for High Temperatures of the Russian Academy of Sciences, Izhorskaya st. 13, Bd. 2, Moscow, 125412, Russia
| | - Yulia V Khramova
- Faculty of Biology, Lomonosov Moscow State University, Leninskie Gory, 12-1, Moscow, 119234, Russia
| | - Maxim A Filatov
- Faculty of Biology, Lomonosov Moscow State University, Leninskie Gory, 12-1, Moscow, 119234, Russia
| | - Dmitry S Sitnikov
- Joint Institute for High Temperatures of the Russian Academy of Sciences, Izhorskaya st. 13, Bd. 2, Moscow, 125412, Russia
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46
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Cyclopamine, an Antagonist of Hedgehog (Hh) Signaling Pathway, Reduces the Hatching Rate of Parthenogenetic Murine Embryos. JOURNAL OF ANIMAL REPRODUCTION AND BIOTECHNOLOGY 2018. [DOI: 10.12750/jet.2018.33.4.237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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