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Eichholz HM, Cornelis A, Wolf B, Grubitzsch H, Friedrich P, Makky A, Aktas B, Käs JA, Stepan H. Anatomy of the fetal membranes: insights from spinning disk confocal microscopy. Arch Gynecol Obstet 2024; 309:1919-1923. [PMID: 37184578 PMCID: PMC11018647 DOI: 10.1007/s00404-023-07070-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 04/28/2023] [Indexed: 05/16/2023]
Abstract
PURPOSE The fetal membranes are essential for the maintenance of pregnancy, and their integrity until parturition is critical for both fetal and maternal health. Preterm premature rupture of the membranes (pPROM) is known to be an indicator of preterm birth, but the underlying architectural and mechanical changes that lead to fetal membrane failure are not yet fully understood. The aim of this study was to gain new insights into the anatomy of the fetal membrane and to establish a tissue processing and staining protocol suitable for future prospective cohort studies. METHODS In this proof of principle study, we collected fetal membranes from women undergoing vaginal delivery or cesarean section. Small membrane sections were then fixed, stained for nucleic acids, actin, and collagen using fluorescent probes, and subsequently imaged in three dimensions using a spinning disk confocal microscope. RESULTS Four fetal membranes of different types were successfully processed and imaged after establishing a suitable protocol. Cellular and nuclear outlines are clearly visible in all cases, especially in the uppermost membrane layer. Focal membrane (micro) fractures could be identified in several samples. CONCLUSION The presented method proves to be well suited to determine whether and how the occurrence of membrane (micro) fractures and cellular jamming correlate with the timing of membrane rupture and the mode of delivery. In future measurements, this method could be combined with mechanical probing techniques to compare optical and mechanical sample information.
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Affiliation(s)
- Hannah Marie Eichholz
- Leipzig Institute for Meteorology, Leipzig University, 04103, Leipzig, Germany
- Center for Scalable Data Analytics and Artificial Intelligence, Leipzig University, 04105, Leipzig, Germany
| | - Alissa Cornelis
- Department of Obstetrics, University Hospital Leipzig, 04103, Leipzig, Germany
| | - Benjamin Wolf
- Department of Gynecology, University Hospital Leipzig, 04103, Leipzig, Germany
| | - Hanna Grubitzsch
- Department of Obstetrics, University Hospital Leipzig, 04103, Leipzig, Germany
| | - Philip Friedrich
- Peter Debye Institute for Soft Matter Physics, Leipzig University, 04103, Leipzig, Germany
| | - Ahmad Makky
- Department of Pathology and Neuropathology, University Hospital and Comprehensive Cancer Center Tübingen, 72076, Tübingen, Germany
| | - Bahriye Aktas
- Department of Gynecology, University Hospital Leipzig, 04103, Leipzig, Germany
| | - Josef Alfons Käs
- Peter Debye Institute for Soft Matter Physics, Leipzig University, 04103, Leipzig, Germany
| | - Holger Stepan
- Department of Obstetrics, University Hospital Leipzig, 04103, Leipzig, Germany.
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Rezanujjaman M, Pachoensuk T, Forhad Hossain M, Maisum Sarwar Jyoti M, Rubel Rana M, Tsutsumi E, Mouri T, Bramastri Susilo M, Wanlada K, Yamamoto C, Hasan Ali M, Tokumoto T. Zebrafish prss59.1 is involved in chorion development. Gen Comp Endocrinol 2024; 349:114453. [PMID: 38281702 DOI: 10.1016/j.ygcen.2024.114453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 11/09/2023] [Accepted: 01/18/2024] [Indexed: 01/30/2024]
Abstract
The prss59.1 gene was identified as one of 11 genes that were highly upregulated during the induction of ovulation in zebrafish by using an in vivo ovulation assay. Previously, we conducted biochemical characterization of Prss59.1 and revealed it to be a trypsin-like proteolytic enzyme. In this study, we established a prss59.1 gene knockout strain using the CRISPR/Cas9 system. Phenotypic analysis of prss59.1 knockout fish showed that prss59.1 is associated with chorion elevation, a prominent event in egg activation during fertilization. The chorions of heterozygous and homozygous prss59.1 mutant zebrafish were smaller than those of the wild type. The results suggested that Prss59.1 is necessary for chorion expansion. The homozygous prss59.1 mutant strain, with a small chorion, showed an extremely low survival rate. Fiber-supported knob-like structures (KS) on the chorion showed an abnormal structure in prss59.1 mutants. Prss59.1 was detected in the KS on the chorion. The pores on the chorion were smaller in the prss59.1 mutants than in the wild type. Transmission electron microscopy (TEM) observations of the cross sections of the chorions showed abnormalities in the chorion structure in prss59.1 mutants. These results demonstrated that Prss59.1 is involved in chorion elevation and in proper formation of the chorion, which is necessary for embryo development.
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Affiliation(s)
- Md Rezanujjaman
- Department of Bioscience, Graduate School of Science and Technology, National University Corporation, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | - Theeranukul Pachoensuk
- Department of Bioscience, Graduate School of Science and Technology, National University Corporation, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | - Md Forhad Hossain
- Department of Bioscience, Graduate School of Science and Technology, National University Corporation, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | - Md Maisum Sarwar Jyoti
- Department of Bioscience, Graduate School of Science and Technology, National University Corporation, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | - Md Rubel Rana
- Department of Bioscience, Graduate School of Science and Technology, National University Corporation, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | - Eisei Tsutsumi
- Biological Science Course, Graduate School of Science, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | - Takumi Mouri
- Biological Science Course, Graduate School of Science, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | - Maria Bramastri Susilo
- Biological Science Course, Graduate School of Science, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | - Klangnurak Wanlada
- Department of Animal Production and Fisheries, Faculty of Agricultural Technology, King Mongkut's Institute of Technology Ladkrabang, Thailand
| | - Chihiro Yamamoto
- Division of Technical Service, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | - Md Hasan Ali
- Department of Bioscience, Graduate School of Science and Technology, National University Corporation, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | - Toshinobu Tokumoto
- Department of Bioscience, Graduate School of Science and Technology, National University Corporation, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan; Biological Science Course, Graduate School of Science, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan.
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3
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Underhill LA, Mennella JM, Tollefson GA, Uzun A, Lechner BE. Transcriptomic analysis delineates preterm prelabor rupture of membranes from preterm labor in preterm fetal membranes. BMC Med Genomics 2024; 17:72. [PMID: 38443884 PMCID: PMC10916314 DOI: 10.1186/s12920-024-01841-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 02/28/2024] [Indexed: 03/07/2024] Open
Abstract
BACKGROUND Globally, preterm birth remains the leading cause of death in children younger than 5 years old. Spontaneous preterm birth is comprised of two events that may or may not occur simultaneously: preterm labor and preterm prelabor rupture of membranes (PPROM). To further explore the concept that spontaneous preterm birth can result from the initializing of two separate but overlapping pathological events, we compared fetal membrane tissue from preterm labor deliveries to fetal tissue from preterm labor with PPROM deliveries. We hypothesized that the fetal membrane tissue from preterm labor with PPROM cases will have an RNA-seq profile divergent from the fetal membrane tissue from preterm labor controls. METHODS Chorioamnion, separated into amnion and chorion, was collected from eight gestationally age-matched cases and controls within 15 min of birth, and analyzed using RNA sequencing. Pathway enrichment analyses and functional annotations of differentially expressed genes were performed using KEGG and Gene Ontogeny Pathway enrichment analyses. RESULTS A total of 1466 genes were differentially expressed in the amnion, and 484 genes were differentially expressed in the chorion (log2 fold change > 1, FDR < 0.05) in cases (preterm labor with PPROM), versus controls (preterm labor only). In the amnion, the most significantly enriched (FDR < 0.01) KEGG pathway among down-regulated genes was the extracellular matrix receptor interaction pathway. Seven of the most significantly enriched pathways were comprised of multiple genes from the COL family, including COL1A, COL3A1, COL4A4, and COL4A6. In the chorion, the most significantly enriched KEGG pathways in up-regulated genes were chemokine, NOD receptor, Toll-like receptor, and cytokine-cytokine receptor signaling pathways. Similarly, KEGG pathway enrichment analysis for up-regulated genes in the amnion included three inflammatory pathways: cytokine-cytokine interaction, TNF signaling and the CXCL family. Six genes were significantly up regulated in chorionic tissue discriminated between cases (preterm labor with PPROM) and controls (preterm labor only) including GBP5, CXCL9, ALPL, S100A8, CASP5 and MMP25. CONCLUSIONS In our study, transcriptome analysis of preterm fetal membranes revealed distinct differentially expressed genes for PPROM, separate from preterm labor. This study is the first to report transcriptome data that reflects the individual pathophysiology of amnion and chorion tissue from PPROM deliveries.
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Affiliation(s)
- Lori A Underhill
- Warren Alpert Medical School at Brown University, Providence, RI, USA.
- Department of Pediatrics, Women and Infants Hospital, Providence, RI, USA.
- Women and Infants Hospital, 101 Dudley St, 02905, Providence, RI, USA.
| | - J M Mennella
- Warren Alpert Medical School at Brown University, Providence, RI, USA
- Department of Pediatrics, Women and Infants Hospital, Providence, RI, USA
| | - G A Tollefson
- Department of Pediatrics, Women and Infants Hospital, Providence, RI, USA
| | - A Uzun
- Warren Alpert Medical School at Brown University, Providence, RI, USA
- Department of Pediatrics, Women and Infants Hospital, Providence, RI, USA
| | - B E Lechner
- Warren Alpert Medical School at Brown University, Providence, RI, USA
- Department of Pediatrics, Women and Infants Hospital, Providence, RI, USA
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Kim M, Noh MY, Mun S, Muthukrishnan S, Kramer KJ, Arakane Y. Functional importance of groups I and II chitinases, CHT5 and CHT10, in turnover of chitinous cuticle during embryo hatching and post-embryonic molting in the red flour beetle, Tribolium castaneum. Insect Biochem Mol Biol 2024; 166:104087. [PMID: 38295884 DOI: 10.1016/j.ibmb.2024.104087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 01/18/2024] [Accepted: 01/28/2024] [Indexed: 02/20/2024]
Abstract
Chitinases (CHT) comprise a large gene family in insects and have been classified into at least eleven subgroups. Many studies involving RNA interference (RNAi) have demonstrated that depletion of group I (CHT5s) and group II (CHT10s) CHT transcripts causes lethal molting arrest in several insect species including the red flour beetle, Tribolium castaneum, presumably due to failure of degradation of chitin in their old cuticle. In this study we investigated the functions of CHT5 and CHT10 in turnover of chitinous cuticle in T. castaneum during embryonic and post-embryonic molting stages. RNAi and transmission electron microscopic (TEM) analyses indicate that CHT10 is required for cuticular chitin degradation at each molting period analyzed, while CHT5 is essential for pupal-adult molting only. We further analyzed the functions of these genes during embryogenesis in T. castaneum. Real-time qPCR analysis revealed that peak expression of CHT10 occurred prior to that of CHT5 during embryonic development as has been observed at post-embryonic molting periods in several other insect species. With immunogold-labeling TEM analysis using a fluorescein isothiocyanate-conjugated chitin-binding domain protein (FITC-CBD) probe, chitin was detected in the serosal cuticle but not in any other regions of the eggshell including the chorion and vitelline membrane layers. Injection of double-stranded RNA (dsRNA) for CHT5 (dsCHT5), CHT10 (dsCHT10) or their co-injection (dsCHT5/10) into mature adult females had no effect on their fecundity and the resulting embryos developed normally inside the egg. There were no obvious differences in the morphology of the outer chorion, inner chorion and vitelline membrane among eggs from these dsRNA-treated females. However, unlike dsCHT5 eggs, dsCHT10 and dsCHT5/10 eggs exhibited failure of turnover of the serosal cuticle in which the horizontal chitinous laminae remained intact, resulting in lethal embryo hatching defects. These results indicate that group I CHT5 is essential for pupal-adult molting, whereas group II CHT10 plays an essential role in cuticular chitin degradation in T. castaneum during both embryonic hatching and all of the post-embryonic molts. CHT10 can serve in place of CHT5 in chitin degradation, except during the pupal-adult molt when both enzymes are indispensable to complete eclosion.
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Affiliation(s)
- Myeongjin Kim
- Department of Applied Biology, Chonnam National University, Gwangju, 61186, South Korea
| | - Mi Young Noh
- Department of Forest Resources, AgriBio Institute of Climate Change Management, Chonnam National University, Gwangju, 61186, South Korea.
| | - Seulgi Mun
- Department of Applied Biology, Chonnam National University, Gwangju, 61186, South Korea
| | - Subbaratnam Muthukrishnan
- Department of Biochemistry and Molecular Biophysics, Kansas State University, Manhattan, KS, 66506, USA
| | - Karl J Kramer
- Department of Biochemistry and Molecular Biophysics, Kansas State University, Manhattan, KS, 66506, USA
| | - Yasuyuki Arakane
- Department of Applied Biology, Chonnam National University, Gwangju, 61186, South Korea.
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Fidalgo DS, Samimi K, Oyen ML, Skala MC, Jorge RMN, Parente MPL, Malanowska E, Oliveira DA, Myers KM. Development of a multilayer fetal membrane material model calibrated using bulge inflation mechanical tests. J Mech Behav Biomed Mater 2024; 150:106344. [PMID: 38160642 DOI: 10.1016/j.jmbbm.2023.106344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 12/15/2023] [Accepted: 12/22/2023] [Indexed: 01/03/2024]
Abstract
The fetal membranes are an essential mechanical structure for pregnancy, protecting the developing fetus in an amniotic fluid environment and rupturing before birth. In cooperation with the cervix and the uterus, the fetal membranes support the mechanical loads of pregnancy. Structurally, the fetal membranes comprise two main layers: the amnion and the chorion. The mechanical characterization of each layer is crucial to understanding how each layer contributes to the structural performance of the whole membrane. The in-vivo mechanical loading of the fetal membranes and the amount of tissue stress generated in each layer throughout gestation remains poorly understood, as it is difficult to perform direct measurements on pregnant patients. Finite element analysis of pregnancy offers a computational method to explore how anatomical and tissue remodeling factors influence the load-sharing of the uterus, cervix, and fetal membranes. To aid in the formulation of such computational models of pregnancy, this work develops a fiber-based multilayer fetal membrane model that captures its response to previously published bulge inflation loading data. First, material models for the amnion, chorion, and maternal decidua are formulated, informed, and validated by published data. Then, the behavior of the fetal membrane as a layered structure was analyzed, focusing on the respective stress distribution and thickness variation in each layer. The layered computational model captures the overall behavior of the fetal membranes, with the amnion being the mechanically dominant layer. The inclusion of fibers in the amnion material model is an important factor in obtaining reliable fetal membrane behavior according to the experimental dataset. These results highlight the potential of this layered model to be integrated into larger biomechanical models of the gravid uterus and cervix to study the mechanical mechanisms of preterm birth.
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Affiliation(s)
- Daniel S Fidalgo
- Institute of Science and Innovation in Mechanical and Industrial Engineering (INEGI), R. Dr. Roberto Frias 400, 4200-465, Porto, Portugal; Mechanical Department (DEMec), Faculty of Engineering of University of Porto (FEUP), Rua Dr. Roberto Frias, 4200-465, Porto, Portugal.
| | | | - Michelle L Oyen
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, USA
| | - Melissa C Skala
- Morgridge Institute for Research, Madison, WI, USA; Department of Biomedical Engineering, University of Wisconsin, Madison, WI, USA
| | - Renato M N Jorge
- Institute of Science and Innovation in Mechanical and Industrial Engineering (INEGI), R. Dr. Roberto Frias 400, 4200-465, Porto, Portugal; Mechanical Department (DEMec), Faculty of Engineering of University of Porto (FEUP), Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
| | - Marco P L Parente
- Institute of Science and Innovation in Mechanical and Industrial Engineering (INEGI), R. Dr. Roberto Frias 400, 4200-465, Porto, Portugal; Mechanical Department (DEMec), Faculty of Engineering of University of Porto (FEUP), Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
| | - Ewelina Malanowska
- Department of Gynaecology, Endocrinology and Gynaecologic Oncology, Pomeranian Medical University, Szczecin, Poland
| | - Dulce A Oliveira
- Institute of Science and Innovation in Mechanical and Industrial Engineering (INEGI), R. Dr. Roberto Frias 400, 4200-465, Porto, Portugal
| | - Kristin M Myers
- Department of Mechanical Engineering - Columbia University, New York, NY 10027, USA
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de Souza Teodoro L, Jablonski CA, Pelegrini K, Pereira TCB, Maraschin TG, de Sousa Araujo AC, Monserrat JM, de Souza Basso NR, Kist LW, Bogo MR. Toxic effects of environmental-relevant exposure to polyethylene terephthalate (PET) micro and nanoparticles in zebrafish early development. NanoImpact 2024; 33:100497. [PMID: 38316295 DOI: 10.1016/j.impact.2024.100497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 01/09/2024] [Accepted: 02/02/2024] [Indexed: 02/07/2024]
Abstract
Polyethylene terephthalate (PET) is a commonly used thermoplastic in industry due to its excellent malleability and thermal stability, making it extensively employed in packaging manufacturing. Inadequate disposal of PET packaging in the environment and natural physical-chemical processes leads to the formation of smaller particles known as PET micro and nanoplastics (MNPs). The reduced dimensions enhance particle bioavailability and, subsequently, their reactivity. This study involved chemical degradation of PET using trifluoroacetic acid to assess the impact of exposure to varying concentrations of PET MNPs (0.5, 1, 5, 10, and 20 mg/L) on morphological, functional, behavioral, and biochemical parameters during the early developmental stages of zebrafish (Danio rerio). Characterization of the degraded PET revealed the generated microplastics (MPs) ranged in size from 1305 to 2032 μm, and that the generated nanoplastics (NPs) ranged from 68.06 to 955 nm. These particles were then used for animal exposure. After a six-day exposure period, our findings indicate that PET MNPs can diminish spontaneous tail coiling (STC), elevate the heart rate, accumulate on the chorion surface, and reduce interocular distance. These results suggest that PET exposure induces primary toxic effects on zebrafish embryo-larval stage of development.
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Affiliation(s)
- Lilian de Souza Teodoro
- Laboratory of Genomics and Molecular Biology, Pontifical Catholic University of Rio Grande do Sul (PUCRS), School of Health and Life Sciences, Av. Ipiranga, 6681 Porto Alegre, RS, Brazil; Graduate Program in Cellular and Molecular Biology, PUCRS, Av. Ipiranga, 6681 Porto Alegre, RS, Brazil
| | - Camilo Alexandre Jablonski
- Laboratory of Genomics and Molecular Biology, Pontifical Catholic University of Rio Grande do Sul (PUCRS), School of Health and Life Sciences, Av. Ipiranga, 6681 Porto Alegre, RS, Brazil; Graduate Program in Medicine and Health Sciences, PUCRS, Av. Ipiranga, 6690 Porto Alegre, RS, Brazil
| | - Kauê Pelegrini
- Organometallic Compounds and Resins Laboratory, School of Technology, PUCRS, Porto Alegre, RS, Brazil; Graduate Program in Materials Technology and Engineering, PUCRS, Porto Alegre, RS, Brazil
| | - Talita Carneiro Brandão Pereira
- Laboratory of Genomics and Molecular Biology, Pontifical Catholic University of Rio Grande do Sul (PUCRS), School of Health and Life Sciences, Av. Ipiranga, 6681 Porto Alegre, RS, Brazil; Graduate Program in Medicine and Health Sciences, PUCRS, Av. Ipiranga, 6690 Porto Alegre, RS, Brazil
| | - Thuany Garcia Maraschin
- Organometallic Compounds and Resins Laboratory, School of Technology, PUCRS, Porto Alegre, RS, Brazil; Graduate Program in Materials Technology and Engineering, PUCRS, Porto Alegre, RS, Brazil
| | - Alan Carvalho de Sousa Araujo
- Graduate Program in Aquaculture, Institute of Oceanography (IO), Federal University of Rio Grande - FURG, Rio Grande, RS, Brazil
| | - Jose Maria Monserrat
- Graduate Program in Aquaculture, Institute of Oceanography (IO), Federal University of Rio Grande - FURG, Rio Grande, RS, Brazil; Institute of Biological Sciences (ICB), Federal University of Rio Grande - FURG, Rio Grande, RS, Brazil
| | | | - Luiza Wilges Kist
- Laboratory of Genomics and Molecular Biology, Pontifical Catholic University of Rio Grande do Sul (PUCRS), School of Health and Life Sciences, Av. Ipiranga, 6681 Porto Alegre, RS, Brazil; Graduate Program in Cellular and Molecular Biology, PUCRS, Av. Ipiranga, 6681 Porto Alegre, RS, Brazil
| | - Maurício Reis Bogo
- Laboratory of Genomics and Molecular Biology, Pontifical Catholic University of Rio Grande do Sul (PUCRS), School of Health and Life Sciences, Av. Ipiranga, 6681 Porto Alegre, RS, Brazil; Graduate Program in Cellular and Molecular Biology, PUCRS, Av. Ipiranga, 6681 Porto Alegre, RS, Brazil; Graduate Program in Medicine and Health Sciences, PUCRS, Av. Ipiranga, 6690 Porto Alegre, RS, Brazil.
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Santos N, Oliveira M, Domingues I. Influence of exposure scenario on the sensitivity to caffeine. Environ Sci Pollut Res Int 2023; 30:122808-122821. [PMID: 37978123 PMCID: PMC10724325 DOI: 10.1007/s11356-023-30945-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 11/03/2023] [Indexed: 11/19/2023]
Abstract
The chorion acts as a protective barrier, restricting some chemical absorption into the embryo and the surrounding fluids. In this sense, larvae may only have direct contact with some chemicals after dechorionation. This study aimed to evaluate the effects of caffeine (CAF) (0, 13, 20, 44, 67, and 100 mg.L-1) under different exposure scenarios (embryos with chorion or embryos/larvae already hatched) and rank the stage sensitivity. Thus, three scenarios were investigated: from 2 to 120 hours post fertilization (hpf) (5 days of exposure- 5dE), from 72 to 120 hpf (2dE), and from 96 to 120 hpf (1dE). Heart rate (48 hpf) and energy reserves (120 hpf) were measured in the 5dE scenario, and behavior and acetylcholinesterase (AChE) activity were evaluated at 120 hpf in all scenarios (5dE, 2dE, and 1dE). At 120 hpf, some of the fish was transferred to clean medium for a 10 days depuration period (10dPE). Behavior and AChE activity were assessed after this period. In the 5dE scenario, CAF increased heartbeat (13, 20, and 30 mg.L-1) and reduced carbohydrates (67, and 100 mg.L-1), while inhibiting AChE activity (100 mg.L-1) in the 5dE, 2dE, and 1dE scenarios. CAF reduced the total distance moved in the 5dE (67, and 100 mg.L-1), 2dE (20, 30, 44, 67, and 100 mg.L-1), and 1dE fish (67, and 100 mg.L-1) and increased erratic movements. Based on the lowest observed effect concentration (LOEC) for total distance moved (20 mg.L-1) and higher inhibition of AChE activity (100 mg.L-1) (65%), 2dE fish appear to be more sensitive to CAF. After 10dPE, a recovery in behavior was detected in all scenarios (5dE, 2dE, and 1dE). AChE activity remained inhibited in the 2dE scenario while increasing in the 1dE scenario. This study demonstrated that the presence of the chorion is an important factor for the analysis of CAF toxicity. After the loss of the chorion, organisms show greater sensitivity to CAF and can be used to evaluate the toxicity of various substances, including nanomaterials or chemicals with low capacity to cross the chorion. Therefore, the use of hatched embryos in toxicity tests is suggested, as they allow a shorter and less expensive exposure scenario that provides similar outcome as the conventional scenario.
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Affiliation(s)
- Niedja Santos
- Centre for Environmental and Marine Studies (CESAM), Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
| | - Miguel Oliveira
- Centre for Environmental and Marine Studies (CESAM), Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Inês Domingues
- Centre for Environmental and Marine Studies (CESAM), Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
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8
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Choi HJ, Kim JH, Le VQA, Kim BN, Cho BK, Kim YH, Min J. Yeast vacuolar enzymes as novel hatching inhibitors for aquatic organisms, Daphnia magna and Danio rerio eggs. Ecotoxicol Environ Saf 2023; 264:115446. [PMID: 37688866 DOI: 10.1016/j.ecoenv.2023.115446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 08/31/2023] [Accepted: 09/04/2023] [Indexed: 09/11/2023]
Abstract
Concerns over the spread of non-native species in aquatic environments have led to the need for effective methods to prevent and control their spread while protecting native species. This study investigated the potential of yeast vacuolar enzymes as a natural hatching inhibitor for controlling aquatic organisms. Hatching experiments with Daphnia magna eggs demonstrated that exposure to yeast vacuole enzymes inhibited hatching in a concentration-dependent manner, suggesting their potential as an effective inhibitor of egg hatching in aquatic organisms. Interestingly, the protease used for comparative purposes did not inhibit hatching, but instead increased the mortality of hatched D. magna. Additionally, chorionic changes were observed in non-hatched D. magna eggs and zebrafish eggs exposed to yeast vacuole enzymes, suggesting that the enzyme can alter the chorion and interfere with hatching. These findings suggest that yeast vacuolar enzymes may be a promising and natural management tool for controlling the spread of harmful aquatic organisms, and further research is warranted to explore their potential for species-specific control.
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Affiliation(s)
- Hyo Jin Choi
- School of Chemical Engineering, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, South Korea
| | - Ji Hun Kim
- Department of Biological Sciences, Korea Advanced institute of Science and Technology, 291 Daehak-ro, Yuseong-Gu, Daejeon 34141, South Korea
| | - Vu Quynh Anh Le
- School of Chemical Engineering, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, South Korea
| | - Bit-Na Kim
- School of Chemical Engineering, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, South Korea.
| | - Byung-Kwan Cho
- Department of Biological Sciences, Korea Advanced institute of Science and Technology, 291 Daehak-ro, Yuseong-Gu, Daejeon 34141, South Korea.
| | - Yang-Hoon Kim
- School of Biological Sciences, Chungbuk National University, 1 Chungdae-Ro, Seowon-Gu, Cheongju 28644, South Korea.
| | - Jiho Min
- School of Chemical Engineering, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, South Korea.
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Truong N, Menon R, Richardson L. The Role of Fetal Membranes during Gestation, at Term, and Preterm Labor. Placenta Reprod Med 2023; 2:4. [PMID: 38304894 PMCID: PMC10831903 DOI: 10.54844/prm.2022.0296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
During pregnancy, the fetal membranes (i.e., amniochorionic membranes) surround the intrauterine cavity and provide mechanical, immune, and endocrine support to protect the fetus. Though they are a vital component of the intrauterine cavity, the fetal membranes are largely overlooked as an extension of the placenta, leading to a poor understanding of their role during gestation, parturition, or preterm birth. The fetal membranes are comprised of fetal cellular and stromal layers and line up with maternal decidua forming the feto-maternal interface during pregnancy. This interface plays a large role during pregnancy and the induction of term or preterm parturition (e.g., labor). Here we summarize the function of the fetal membranes focusing on their role during gestation at term, and during preterm births.
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Affiliation(s)
- Nina Truong
- The University of Texas Medical Branch John Sealy School of Medicine at Galveston, Galveston, TX, USA
| | - Ramkumar Menon
- Department of Obstetrics & Gynecology, Division of Basic Science and Translational Research, The University of Texas Medical Branch at Galveston, Galveston, TX, USA
| | - Lauren Richardson
- Department of Obstetrics & Gynecology, Division of Basic Science and Translational Research, The University of Texas Medical Branch at Galveston, Galveston, TX, USA
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10
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Zhu B, Lei L, Fu K, Zhao S, Hua J, Yang L, Han J, Li R, Zhou B. Neurotoxicity of tetrabromobisphenol A and SiO2 nanoparticle co-exposure in zebrafish and barrier function of the embryonic chorion. Sci Total Environ 2022; 845:157364. [PMID: 35843329 DOI: 10.1016/j.scitotenv.2022.157364] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 06/27/2022] [Accepted: 07/10/2022] [Indexed: 06/15/2023]
Abstract
Silicon dioxide nanoparticles (n-SiO2) absorb tetrabromobisphenol A (TBBPA) and modify its bioavailability and toxicity in the aquatic phase; embryonic chorion is an efficient barrier against nanoparticles (e.g., SiO2) and influences their toxicity. However, few studies have investigated developmental neurotoxicity in fish after co-exposure to TBBPA and n-SiO2, especially considering the barrier function of the chorion. In the present study, zebrafish embryos were exposed to TBBPA (50, 100, and 200 μg/L) alone or in combination with n-SiO2 (25 mg/L) until 24 or 120 h post fertilization (hpf), in the presence and absence of the chorion. The results confirmed that TBBPA exposure alone significantly downregulated the expression of neurodevelopment marker genes (mbp, alpha-tubulin, shha, and gfap), altered acetylcholinesterase activity and acetylcholine content, and affected locomotor behavior at different developmental stages. Moreover, the results indicated that n-SiO2 promoted TBBPA-induced neurotoxic effects in zebrafish larvae at 120 hpf, including further repression of the transcription of CNS-related genes, disruption of the cholinergic system, and decrease in the average swimming speed under dark/light stimulation. However, scanning electron microscopy/energy dispersive spectroscopy analysis revealed that at 24 hpf, the embryonic chorion efficiently blocked n-SiO2 and consequently decreased the bioaccumulation of TBBPA and TBBPA-induced neurotoxicity in dechorionated zebrafish embryos. Taken together, the results demonstrate that n-SiO2 affected the bioavailability and neurodevelopmental toxicity of TBBPA, and their combined toxicity to zebrafish embryos was mitigated by embryonic chorion, which will facilitate risk assessment on n-SiO2 and TBBPA and improve understanding the function of the fish embryonic chorion.
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Affiliation(s)
- Biran Zhu
- School of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan 430065, China; State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Lei Lei
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Kaiyu Fu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Songlin Zhao
- Institute of Nano-Science and Nano-Technology, College of Physical Science and Technology, Central China Normal University, Wuhan 430079, China
| | - Jianghuan Hua
- School of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Lihua Yang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Jian Han
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
| | - Rui Li
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, China
| | - Bingsheng Zhou
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
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11
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Birk DS, Onose S, Kinoshita M, Murata K. Medaka, Oryzias latipes, egg envelopes are created by ovarian-expressed ZP proteins and liver-expressed choriogenins. Zoological Lett 2022; 8:11. [PMID: 35902919 PMCID: PMC9330664 DOI: 10.1186/s40851-022-00194-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 06/08/2022] [Indexed: 06/15/2023]
Abstract
The medaka (Oryzias latipes) egg envelope (chorion) is composed of three major glycoproteins, Zona Interna (ZI)-1, -2, and -3, that originate in the spawning female liver as the precursor proteins Choriogenin (Chg.)H, Chg.Hm, and Chg.L, respectively. These ZI and Chg. proteins contain a structural ZP protein domain that is conserved among the egg envelope proteins of all animals. While ovarian expression of ZP proteins (e.g., ZPCs and ZPB) has been reported in medakas, the functions of these proteins remain unknown. Thus, the present study aimed to determine whether the ovary-expressed medaka ZP protein, mZPC5, is involved in forming the chorion matrix.The mZPC5 gene (mzpc5) was expressed in the ovaries but not the livers of mature female medakas, as shown by reverse transcription-polymerase chain reaction assays with mzpc5-specific primers. In situ hybridization analysis revealed that ovarian mzpc5 expression was restricted to the ooplasm of early (stage I-III) previtellogenic oocytes, and its expression signal weakened with oocyte growth. Following sodium-dodecyl-sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and Western blotting analysis with anti-mZPC5 antibodies, two immunoreactive proteins were detected in the ovary and chorion extracts. These proteins were approximately 50 and 74 kDa in size, like ZI-3 and ZI-2, respectively.Immunohistochemical assays using anti-mZPC5 and anti-Chg.H antibodies localized the mZPC5 protein in the ooplasm of early previtellogenic oocytes. With oocyte growth, mZPC5 tended to accumulate in the chorion, co-localizing with Chg.H.We previously showed that ovary-expressed ZP proteins could not compensate for Chg.L function loss in gene knock-out (chg.l -/-) medakas. As in our previous study, the chg.l-/- females produced oocytes with thin chorions, resulting in infertile soft eggs. However, in the present study, mZPC5 and Chg.H were co-localized in the chg.l-/- chorions. These results suggested that in the medaka previtellogenic oocyte, 1) mZPC5 is secreted from the ooplasm and deposited on the outer surface of its plasma membrane, creating the thin chorion layer; and 2) following the accumulation of liver-derived Chgs., the 3D structure of the chorion matrix is formed cooperatively with mZPC5 and Chgs. during oogenesis. More research is needed to confirm the functions of mZPC5 in chorion structure and physiology.
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Affiliation(s)
- Devun S. Birk
- University of California, Davis. Center for Health and the Environment, Davis, CA 95616 USA
| | - Shinji Onose
- University of California, Davis. Center for Health and the Environment, Davis, CA 95616 USA
- Fordays Co., Ltd, Tokyo, 103-0016 Japan
| | - Masato Kinoshita
- Division of Applied Biosciences, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502 Japan
| | - Kenji Murata
- University of California, Davis. Center for Health and the Environment, Davis, CA 95616 USA
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Murata K, Kinoshita M. Targeted deletion of liver-expressed Choriogenin L results in the production of soft eggs and infertility in medaka, Oryzias latipes. Zoological Lett 2022; 8:1. [PMID: 34983666 PMCID: PMC8729012 DOI: 10.1186/s40851-021-00185-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 10/20/2021] [Indexed: 06/14/2023]
Abstract
Egg envelopes (chorions) in medaka, Oryzias latipes, are composed of three major glycoproteins: ZI-1, - 2, and - 3. These gene-encoded chorion glycoproteins are expressed in the liver and/or ovarian oocytes of sexually mature female fish. In medaka, the glycoproteins produced in the female liver are induced by estrogen as Choriogenin (Chg.) H and Chg. H minor (m), which correspond to the zona pellucida (ZP) B (ZPB) protein in mammals, and Chg. L, which corresponds to ZPC in mammals. Chg. H, Chg. Hm, and Chg. L, are then converted to ZI-1, - 2, and - 3, respectively, during oogenesis in medaka ovaries.In the present study, we established a medaka line in which the chg.l gene was inactivated using the transcription activator-like effector nuclease (TALEN) technique. Neither intact chg.l transcripts nor Chg. L proteins were detected in livers of sexually mature female homozygotes for the mutation (homozygous chg.l knockout: chg.l-/-). The chg.l-/- females spawned string-like materials containing "smashed eggs." Closer examination revealed the oocytes in the ovaries of chg.l-/- females had thin chorions, particularly at the inner layer, despite a normal growth rate. In comparing chorions from normal (chg.l+/+) and chg.l-/- oocytes, the latter exhibited abnormal architecture in the chorion pore canals through which the oocyte microvilli pass. These microvilli mediate the nutritional exchange between the oocyte and surrounding spaces and promote sperm-egg interactions during fertilization. Thus, following in vitro fertilization, no embryos developed in the artificially inseminated oocytes isolated from chg.l-/- ovaries. These results demonstrated that medaka ZI-3 (Chg.L) is the major component of the inner layer of the chorion, as it supports and maintains the oocyte's structural shape, enabling it to withstand the pressures exerted against the chorion during spawning, and is essential for successful fertilization. Therefore, gene products of oocyte-specific ZP genes that may be expressed in medaka oocytes cannot compensate for the loss Chg. L function to produce offspring for this species.
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Affiliation(s)
- Kenji Murata
- University of California, Davis. Center for Health and the Environment, Davis, CA 95616 USA
| | - Masato Kinoshita
- Division of Applied Bioscience, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502 Japan
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13
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Pitale U, Pal PC, Boyapati R, Bali A, Varma M, Khetarpal S. A novel amnion- chorion allograft membrane combined with a coronally advanced flap: a minimally invasive surgical therapy to regenerate interdental papillary soft tissue recession - a six-month postoperative image analysis-based clinical trial. J Korean Assoc Oral Maxillofac Surg 2021; 47:438-444. [PMID: 34969017 PMCID: PMC8721419 DOI: 10.5125/jkaoms.2021.47.6.438] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 09/15/2021] [Accepted: 09/23/2021] [Indexed: 11/30/2022] Open
Abstract
Objectives Loss of the interdental papilla is multi-factorial and creates a multitude of problems. Autogenous connective tissue/biomaterial-based regeneration has been attempted for decades to reconstitute the black space created due to the loss of papilla. The aim of this present study was to regenerate papillary recession defects using an amnion-chorion membrane (ACM) allograft and to evaluate the clinical outcome up to six months postoperatively. Materials and Methods Twenty patients with 25 Nordland and Tarnow’s Class I/II interdental papillary recession defects were treated with ACM and coronal advancement of the gingivo-papillary unit via a semilunar incision on the labial aspect followed by a sulcular incision in the area of interest. A photographic image analysis was carried out using the GNU Image Manipulation software program from the baseline to three and six months postoperatively. The black triangle height (BTH) and the black triangle width (BTW) were calculated using the pixel size and were then converted into millimeters. The mean and standard deviation values were determined at baseline and then again at three and six months postoperatively. The probability values (P˂0.05 and P≤0.01) were considered statistically significant and highly significant, respectively. An analysis of variance and post hoc Bonferroni test were carried out to compare the mean values. Results Our evaluation of the BTH and BTW showed a statistically and highly significant difference from the baseline until both three and six months postoperatively (P=0.01). A post hoc Bonferroni test disclosed a statistically significant variance from the baseline until three and six months postoperatively (P˂0.05) and a non-significant difference from three to six months after the procedure (P≥0.05). Conclusion An ACM allograft in conjunction with a coronally advanced flap could be a suitable minimally invasive alternative for papillary regeneration.
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Affiliation(s)
- Unnati Pitale
- Department of Periodontics, Modern Dental College & Research Centre, Indore, India
| | - Pritish Chandra Pal
- Department of Periodontics, Pacific Dental College and Hospital, Udaipur, India
| | | | - Ashish Bali
- Department of Periodontics, Pacific Dental College and Hospital, Udaipur, India
| | - Manish Varma
- Department of Periodontics, Govt. College of Dentistry, Indore, India
| | - Shaleen Khetarpal
- Department of Periodontics, Govt. College of Dentistry, Indore, India
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14
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Bonfanti P, Colombo A, Saibene M, Motta G, Saliu F, Catelani T, Mehn D, La Spina R, Ponti J, Cella C, Floris P, Mantecca P. Microplastics from miscellaneous plastic wastes: Physico-chemical characterization and impact on fish and amphibian development. Ecotoxicol Environ Saf 2021; 225:112775. [PMID: 34536794 DOI: 10.1016/j.ecoenv.2021.112775] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 09/07/2021] [Accepted: 09/09/2021] [Indexed: 06/13/2023]
Abstract
Microplastic pollution represents a global problem with negative impacts on aquatic environment and organisms' health. To date, most of the laboratory toxicological studies on microplastics (MPs) have made use of single commercial micro and nano-polymers, which do not reflect the heterogeneity of environmental MPs. To improve the relevance of the hazard assessment, micrometer-sized plastic particles of miscellaneous non-reusable waste plastics, with size <100 µm and <50 µm (waste microplastics, wMPs), were characterized by microscopic and spectroscopic techniques and tested on developing zebrafish and Xenopus laevis by FET and FETAX assays respectively. Moreover, the modalities of wMP interaction with the embryonic structures, as well as the histological lesions, were explored by light and electron microscopy. We have shown that wMPs had very heterogeneous shapes and sizes, were mainly composed of polyethylene and polypropylene and contained metal and organic impurities, as well as submicrometric particle fractions, features that resemble those of environmental occurring MPs. wMPs (0.1-100 mg/L) caused low rate of mortality and altered phenotypes in embryos, but established species-specific biointeractions. In zebrafish, wMPs by adhering to chorion were able to delay hatching in a size and concentration dependent manner. In Xenopus embryos, which open stomodeum earlier than zebrafish, wMPs were accumulated in intestinal tract, where produced mechanical stress and stimulated mucus overproduction, attesting an irritation response. Although wMP biointeractions did not interfere with morphogenesis processes, further studies are needed to understand the underlying mechanisms and long-term impact of these, or even smaller, wMPs.
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Affiliation(s)
- Patrizia Bonfanti
- Department of Earth and Environmental Sciences, Research Centre POLARIS, University of Milano - Bicocca, Milano, Italy
| | - Anita Colombo
- Department of Earth and Environmental Sciences, Research Centre POLARIS, University of Milano - Bicocca, Milano, Italy
| | - Melissa Saibene
- Department of Earth and Environmental Sciences, Research Centre POLARIS, University of Milano - Bicocca, Milano, Italy
| | - Giulia Motta
- Department of Earth and Environmental Sciences, Research Centre POLARIS, University of Milano - Bicocca, Milano, Italy
| | - Francesco Saliu
- Department of Earth and Environmental Sciences, Research Centre POLARIS, University of Milano - Bicocca, Milano, Italy
| | - Tiziano Catelani
- Interdepartmental Microscopy Platform, University of Milano - Bicocca, Milano, Italy
| | - Dora Mehn
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Rita La Spina
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Jessica Ponti
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Claudia Cella
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Pamela Floris
- Department of Earth and Environmental Sciences, Research Centre POLARIS, University of Milano - Bicocca, Milano, Italy
| | - Paride Mantecca
- Department of Earth and Environmental Sciences, Research Centre POLARIS, University of Milano - Bicocca, Milano, Italy.
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15
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Coral JA, Heaps S, Glaholt SP, Karty JA, Jacobson SC, Shaw JR, Bondesson M. Arsenic exposure induces a bimodal toxicity response in zebrafish. Environ Pollut 2021; 287:117637. [PMID: 34182391 DOI: 10.1016/j.envpol.2021.117637] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 06/17/2021] [Accepted: 06/19/2021] [Indexed: 05/25/2023]
Abstract
In toxicology, standard sigmoidal concentration-response curves are used to predict effects concentrations and set chemical regulations. However, current literature also establishes the existence of complex, bimodal concentration-response curves, as is the case for arsenic toxicity. This bimodal response has been observed at the molecular level, but not characterized at the whole organism level. This study investigated the effect of arsenic (sodium arsenite) on post-gastrulated zebrafish embryos and elucidated effects of bimodal concentration-responses on different phenotypic perturbations. Six hour post fertilized (hpf) zebrafish embryos were exposed to arsenic to 96 hpf. Hatching success, mortality, and morphometric endpoints were evaluated both in embryos with chorions and dechorionated embryos. Zebrafish embryos exhibited a bimodal response to arsenic exposure. Concentration-response curves for exposed embryos with intact chorions had an initial peak in mortality (88%) at 1.33 mM arsenic, followed by a decrease in toxicity (~20% mortality) at 1.75 mM, and subsequently peaked to 100% mortality at higher concentrations. To account for the bimodal response, two distinct concentration-response curves were generated with estimated LC10 values (and 95% CI) of 0.462 (0.415, 0.508) mM and 1.69 (1.58, 1.78) mM for the 'low concentration' and 'high concentration' peaks, respectively. Other phenotypic analyses, including embryo length, yolk and pericardial edema all produced similar concentration-response patterns. Tests with dechorionated embryos also resulted in a bimodal toxicity response but with lower LC10 values of 0.170 (0.120, 0.220) mM and 0.800 (0.60, 0842) mM, respectively. Similarities in bimodal concentration-responses between with-chorion and dechorionated embryos indicate that the observed effect was not caused by the chorion limiting arsenic availability, thus lending support to other studies such as those that hypothesized a conserved bimodal mechanism of arsenic interference with nuclear receptor activation.
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Affiliation(s)
- Jason A Coral
- Department of Intelligent Systems Engineering, Indiana University, Bloomington, IN, USA.
| | - Samuel Heaps
- Department of Intelligent Systems Engineering, Indiana University, Bloomington, IN, USA
| | - Stephen P Glaholt
- O'Neill School of Public and Environmental Affairs, Indiana University, Bloomington, IN, USA
| | - Jonathan A Karty
- Department of Chemistry, Indiana University, Bloomington, IN, USA
| | | | - Joseph R Shaw
- O'Neill School of Public and Environmental Affairs, Indiana University, Bloomington, IN, USA
| | - Maria Bondesson
- Department of Intelligent Systems Engineering, Indiana University, Bloomington, IN, USA
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16
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Amberg BJ, Hodges RJ, Rodgers KA, Crossley KJ, Hooper SB, DeKoninck PLJ. Why Do the Fetal Membranes Rupture Early after Fetoscopy? A Review. Fetal Diagn Ther 2021; 48:493-503. [PMID: 34404043 DOI: 10.1159/000517151] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 05/03/2021] [Indexed: 11/19/2022]
Abstract
Iatrogenic preterm premature rupture of the fetal membranes (iPPROM) remains the Achilles' heel of keyhole fetal surgery (fetoscopy) despite significant efforts in preclinical models to develop new therapies. This limited success is partially due to incomplete understanding why the fetal membranes rupture early after fetoscopy and notable differences in membrane physiology between humans and domestic species. In this review, we summarize aspects of fetoscopy that may contribute to iPPROM, the previous efforts to develop new therapies, and limitations of preclinical models commonly used in fetal membrane research.
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Affiliation(s)
- Benjamin J Amberg
- The Department of Obstetrics and Gynaecology, School of Clinical Sciences, Monash University, Melbourne, Victoria, Australia, .,The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, Victoria, Australia,
| | - Ryan J Hodges
- The Department of Obstetrics and Gynaecology, School of Clinical Sciences, Monash University, Melbourne, Victoria, Australia.,The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, Victoria, Australia
| | - Karyn A Rodgers
- The Department of Obstetrics and Gynaecology, School of Clinical Sciences, Monash University, Melbourne, Victoria, Australia.,The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, Victoria, Australia
| | - Kelly J Crossley
- The Department of Obstetrics and Gynaecology, School of Clinical Sciences, Monash University, Melbourne, Victoria, Australia.,The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, Victoria, Australia
| | - Stuart B Hooper
- The Department of Obstetrics and Gynaecology, School of Clinical Sciences, Monash University, Melbourne, Victoria, Australia.,The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, Victoria, Australia
| | - Philip L J DeKoninck
- The Department of Obstetrics and Gynaecology, School of Clinical Sciences, Monash University, Melbourne, Victoria, Australia.,The Ritchie Centre, Hudson Institute of Medical Research, Melbourne, Victoria, Australia.,Department of Obstetrics and Gynaecology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
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17
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Flannery CR, Seaman SA, Buddin KE, Nasert MA, Semler EJ, Kelley KL, Long M, Favret J, Pavesio A, Loeser RF. A novel placental tissue biologic, PTP-001, inhibits inflammatory and catabolic responses in vitro and prevents pain and cartilage degeneration in a rat model of osteoarthritis. Osteoarthritis Cartilage 2021; 29:1203-12. [PMID: 34023528 DOI: 10.1016/j.joca.2021.03.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 03/17/2021] [Accepted: 03/31/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Characterization of a novel human placental tissue-derived biologic, PTP-001, which is in development as a candidate therapeutic for the treatment of osteoarthritis symptoms and pathophysiology. METHODS Human placental tissues from healthy donors were prepared as a particulate formulation, PTP-001. PTP-001 extracts were assayed for the presence of disease-relevant biofactors which could have beneficial effects in treating osteoarthritis. PTP-001 eluates were tested in human chondrocyte cultures to determine effects on the production of a key collagen-degrading matrix metalloproteinase, MMP-13. PTP-001 eluates were also assessed for anti-inflammatory potential in human monocyte/macrophage cultures, as well as for growth-stimulating anabolic effects in human synoviocytes. The in vivo effects of PTP-001 on joint pain and histopathology were evaluated in a rat model of osteoarthritis induced surgically by destabilization of the medial meniscus. RESULTS PTP-001 was found to contain an array of beneficial growth factors, cytokines and anti-inflammatory molecules. PTP-001 eluates dose-dependently inhibited the production of chondrocyte MMP-13, and the secretion of proinflammatory cytokines from monocyte/macrophage cultures. PTP-001 eluates also promoted proliferation of cultured synovial cells. In a rat osteoarthritis model, PTP-001 significantly reduced pain responses throughout 6 weeks post-dosing. The magnitude and duration of pain reduction following a single intraarticular treatment with PTP-001 was comparable to that observed for animals treated with a corticosteroid (active control). For rats dosed twice with PTP-001, significant reductions in cartilage histopathology scores were observed. CONCLUSIONS PTP-001 represents a promising biologic treatment for osteoarthritis, with a multi-modal mechanism of action that may contribute to symptom management and disease modification.
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18
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Moriyama M, Yasuyama K, Numata H. The formation of a hatching line in the serosal cuticle confers multifaceted adaptive functions on the eggshell of a cicada. Zoological Lett 2021; 7:8. [PMID: 33985580 PMCID: PMC8117633 DOI: 10.1186/s40851-021-00178-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 04/30/2021] [Indexed: 06/12/2023]
Abstract
Insect eggshells must meet various demands of developing embryos. These demands sometimes conflict with each other; therefore, there are tradeoffs between eggshell properties, such as robustness and permeability. To meet these conflicting demands, particular eggshell structures have evolved in diverse insect species. Here, we report a rare eggshell structure found in the eggshell of a cicada, Cryptotympana facialis. This species has a prolonged egg period with embryonic diapause and a trait of humidity-inducible hatching, which would impose severe demands on the eggshell. We found that in eggs of this species, unlike many other insect eggs, a dedicated cleavage site, known as a hatching line, was formed not in the chorion but in the serosal cuticle. The hatching line was composed of a fine furrow accompanied by ridges on both sides. This furrow-ridge structure formed in the terminal phase of embryogenesis through the partial degradation of an initially thick and nearly flat cuticle layer. We showed that the permeability of the eggshell was low in the diapause stage, when the cuticle was thick, and increased with degradation of the serosal cuticle. We also demonstrated that the force required to cleave the eggshell was reduced after the formation of the hatching line. These results suggest that the establishment of the hatching line on the serosal cuticle enables flexible modification of eggshell properties during embryogenesis, and we predict that it is an adaptation to maximize the protective role of the shell during the long egg period while reducing the barrier to emerging nymphs at the time of hatching.
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Affiliation(s)
- Minoru Moriyama
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8566, Japan.
- Graduate School of Science, Osaka City University, Osaka, 558-8585, Japan.
| | - Kouji Yasuyama
- Kawasaki Medical School, Kurashiki, 701-0192, Japan
- Kawasaki University of Medical Welfare, Kurashiki, 701-1093, Japan
| | - Hideharu Numata
- Graduate School of Science, Osaka City University, Osaka, 558-8585, Japan
- Graduate School of Science, Kyoto University, Kyoto, 606-8502, Japan
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Mylroie JE, Wilbanks MS, Kimble AN, To KT, Cox CS, McLeod SJ, Gust KA, Moore DW, Perkins EJ, Garcia‐Reyero N. Perfluorooctanesulfonic Acid-Induced Toxicity on Zebrafish Embryos in the Presence or Absence of the Chorion. Environ Toxicol Chem 2021; 40:780-791. [PMID: 33044770 PMCID: PMC7984204 DOI: 10.1002/etc.4899] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 07/06/2020] [Accepted: 10/07/2020] [Indexed: 05/07/2023]
Abstract
Perfluorooctanesulfonic acid (PFOS) is a perfluorinated compound used in many industrial and consumer products. It has been linked to a broad range of adverse effects in several species, including zebrafish (Danio rerio). The zebrafish embryo is a widely used vertebrate model to elucidate potential adverse effects of chemicals because it is amenable to medium and high throughput. However, there is limited research on the full extent of the impact the chorion has on those effects. Results from the present study indicate that the presence of the chorion affected the timing and incidence of mortality as well as morphometric endpoints such as spinal curvature and swim bladder inflation in zebrafish embryos exposed to PFOS. Furthermore, removal of the chorion prior to exposure resulted in a lower threshold of sensitivity to PFOS for effects on transcriptional expression within the peroxisome proliferator-activated receptor (PPAR) nuclear signaling pathway. Perturbation of PPAR pathway gene expression can result in disruption of metabolic signaling and regulation, which can adversely affect development, energy availability, and survival. It can be concluded that removal of the chorion has significant effects on the timing and incidence of impacts associated with PFOS exposure, and more research is warranted to fully elucidate the protective role of the chorion and the critical timing of these events. Environ Toxicol Chem 2021;40:780-791. Published 2020. This article is a US Government work and is in the public domain in the USA. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.
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Affiliation(s)
| | - Mitchell S. Wilbanks
- Environmental Laboratory, US Army Engineer Research & Development CenterVicksburgMississippi
| | - Ashley N. Kimble
- Environmental Laboratory, US Army Engineer Research & Development CenterVicksburgMississippi
| | - Kimberly T. To
- Oak Ridge Institute for Science and Education, Environmental Laboratory, US Army Engineer Research & Development CenterVicksburgMississippi
| | - Catherine S. Cox
- Oak Ridge Institute for Science and Education, Environmental Laboratory, US Army Engineer Research & Development CenterVicksburgMississippi
| | - Sheila J. McLeod
- Oak Ridge Institute for Science and Education, Environmental Laboratory, US Army Engineer Research & Development CenterVicksburgMississippi
| | - Kurt A. Gust
- Environmental Laboratory, US Army Engineer Research & Development CenterVicksburgMississippi
| | - David W. Moore
- Environmental Laboratory, US Army Engineer Research & Development CenterVicksburgMississippi
| | - Edward J. Perkins
- Environmental Laboratory, US Army Engineer Research & Development CenterVicksburgMississippi
| | - Natàlia Garcia‐Reyero
- Environmental Laboratory, US Army Engineer Research & Development CenterVicksburgMississippi
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20
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de Medeiros AMZ, Khan LU, da Silva GH, Ospina CA, Alves OL, de Castro VL, Martinez DST. Graphene oxide-silver nanoparticle hybrid material: an integrated nanosafety study in zebrafish embryos. Ecotoxicol Environ Saf 2021; 209:111776. [PMID: 33341698 DOI: 10.1016/j.ecoenv.2020.111776] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 12/04/2020] [Accepted: 12/05/2020] [Indexed: 05/24/2023]
Abstract
This work reports an integrated nanosafety study including the synthesis and characterization of the graphene oxide-silver nanoparticle hybrid material (GO-AgNPs) and its nano-ecotoxicity evaluation in the zebrafish embryo model. The influences of natural organic matter (NOM) and a chorion embryo membrane were considered in this study, looking towards more environmentally realistic scenarios and standardized nanotoxicity testing. The nanohybrid was successfully synthesized using the NaBH4 aqueous method, and AgNPs (~ 5.8 nm) were evenly distributed over the GO surface. GO-AgNPs showed a dose-response acute toxicity: the LC50 was 1.5 mg L-1 for chorionated embryos. The removal of chorion, however, increased this toxic effect by 50%. Furthermore, the presence of NOM mitigated mortality, and LC50 for GO-AgNPs changed respectively from 2.3 to 1.2 mg L-1 for chorionated and de-chorionated embryos. Raman spectroscopy confirmed the ingestion of GO by embryos; but without displaying acute toxicity up to 100 mg L-1, indicating that the silver drove toxicity down. Additionally, it was observed that silver nanoparticle dissolution has a minimal effect on these observed toxicity results. Finally, understanding the influence of chorion membranes and NOM is a critical step towards the standardization of testing for zebrafish embryo toxicity in safety assessments and regulatory issues.
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Affiliation(s)
- Aline M Z de Medeiros
- Brazilian Nanotechnology National Laboratoy (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo State, Brazil; Center of Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Piracicaba, São Paulo State, Brazil; Brazilian Agricultural Research Corporation (Embrapa Environment), Jaguariúna, São Paulo State, Brazil
| | - Latif U Khan
- Brazilian Nanotechnology National Laboratoy (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo State, Brazil
| | - Gabriela H da Silva
- Brazilian Nanotechnology National Laboratoy (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo State, Brazil
| | - Carlos A Ospina
- Brazilian Nanotechnology National Laboratoy (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo State, Brazil
| | - Oswaldo L Alves
- Laboratory of Solid State Chemistry (LQES) and NanoBioss Laboratory, University of Campinas (Unicamp), Campinas, São Paulo State, Brazil
| | - Vera Lúcia de Castro
- Brazilian Agricultural Research Corporation (Embrapa Environment), Jaguariúna, São Paulo State, Brazil
| | - Diego Stéfani T Martinez
- Brazilian Nanotechnology National Laboratoy (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo State, Brazil; Center of Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Piracicaba, São Paulo State, Brazil; Laboratory of Solid State Chemistry (LQES) and NanoBioss Laboratory, University of Campinas (Unicamp), Campinas, São Paulo State, Brazil.
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21
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Tran CM, Lee H, Lee B, Ra JS, Kim KT. Effects of the chorion on the developmental toxicity of organophosphate esters in zebrafish embryos. J Hazard Mater 2021; 401:123389. [PMID: 32763690 DOI: 10.1016/j.jhazmat.2020.123389] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 05/13/2020] [Accepted: 07/02/2020] [Indexed: 05/21/2023]
Abstract
Many toxicological studies have utilized zebrafish embryos to investigate the developmental toxicity of organophosphate esters (OPEs). However, in respect of the presence or absence of the chorion, a consistent experimental methodology has yet to be developed. In this study, we used a fixed exposure scheme to compare the developmental toxicities of six major OPEs in chorionated and dechorionated zebrafish embryos. Removal of the chorion increased sensitivity to OPEs: we found higher incidence of mortality and malformation in dechorionated embryos. In a behavioral assay, the locomotive activity of zebrafish larvae was consistently inhibited by OPEs except tris (1-chloropropyl) phosphate regardless of chorion presence. However, at the molecular level, the expression of ZHE1 and mmp9 was affected by the presence of the chorion in zebrafish embryos exposed to tributyl phosphate and triphenyl phosphate (TPHP), respectively. Furthermore, in zebrafish embryos exposed to TPHP, the increased expression of miR-137 and miR-141 was abolished by the presence of the chorion. Our results demonstrate for the first time that the presence of the chorion influences phenotypic morbidity, organismal behavior, and gene expression in zebrafish embryos exposed to chemicals; thus, we suggest that dechorionation is desirable for exploring the toxicity mechanisms that underlie effects of chemical exposure.
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Affiliation(s)
- Cong M Tran
- Department of Environmental Engineering, Seoul 01811 Republic of Korea; Department of Environmental Energy Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea
| | - Hyojin Lee
- Department of Environmental Energy Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea
| | - Byoungcheun Lee
- Risk Assessment Division, National Institute of Environmental Research, Incheon 22689, Republic of Korea
| | - Jin-Sung Ra
- Eco-testing and Risk Assessment Center, Korea Institute of Industrial Technology (KITECH), Ansan 15588, Republic of Korea
| | - Ki-Tae Kim
- Department of Environmental Engineering, Seoul 01811 Republic of Korea; Department of Environmental Energy Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea.
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22
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Karas BF, Hotz JM, Buckley BT, Cooper KR. Cisplatin alkylating activity in zebrafish causes resistance to chorionic degradation and inhibition of osteogenesis. Aquat Toxicol 2020; 229:105656. [PMID: 33075613 PMCID: PMC9210937 DOI: 10.1016/j.aquatox.2020.105656] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 10/05/2020] [Accepted: 10/06/2020] [Indexed: 05/06/2023]
Abstract
Zebrafish have gained popularity as a model organism due to their rapid, external, and transparent development, high fecundity, and gene homology with higher vertebrate models and humans. Specifically, drug discovery has had high success in the implementation of zebrafish in studies for target discovery, efficacy, and toxicity. However, a major limitation of the zebrafish model is a dependence on waterborne exposure in order to maintain high throughput capabilities. Dose delivery can be impeded by a matrix of N-linked glycoproteins and other polypeptides called the chorion. This acelluar barrier is protective of the developing embryo, and thus new approaches for assessment have involved their removal. In these studies, we explored the chorionic interference of a well-characterized alkylating chemotherapeutic, cisplatin, known to accumulate in the chorion of zebrafish and cause delayed hatching. Our results indicated that increased exposure of cisplatin due to dechorionation did not alter morphological endpoints, although retained confinement reduced total body length and yolk utilization. Additionally, inhibition of osteogenesis visualized with Alizarian Red staining, was observable in dechorionated and non-dechorionated treatment groups. The chorions of cisplatin-treated embryos showed resistance to degradation unless treated with a pronase solution. This may be may be due to cisplatin covalently crosslinking which reinforces the structure. As such, the chorion may play an advantageous role in studies to determine alkylating activity of novel compounds. Furthermore, the expression of zebrafish hatching enzyme was not affected by cisplatin exposure. These studies demonstrate that not only was recapitulation of mechanistic activity supported in zebrafish, but highly relevant off-target toxicities observed in higher vertebrates were identified in zebrafish, regardless of chorionation. Experimental design in drug discovery should consider preliminary studies without dechorionation in order to determine dose impediment or off-target adducting.
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Affiliation(s)
- Brittany F Karas
- Joint Graduate Program in Toxicology, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, United States; Department of Biochemistry and Microbiology, Rutgers University, 76 Lipman Drive, New Brunswick NJ, 08854, United States
| | - Jordan M Hotz
- Department of Biochemistry and Microbiology, Rutgers University, 76 Lipman Drive, New Brunswick NJ, 08854, United States
| | - Brian T Buckley
- Environmental and Occupational Health Sciences Institute, Rutgers University, 170 Frelinghuysen Road, Piscataway NJ, 08854, United States
| | - Keith R Cooper
- Department of Biochemistry and Microbiology, Rutgers University, 76 Lipman Drive, New Brunswick NJ, 08854, United States.
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23
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Duan Z, Duan X, Zhao S, Wang X, Wang J, Liu Y, Peng Y, Gong Z, Wang L. Barrier function of zebrafish embryonic chorions against microplastics and nanoplastics and its impact on embryo development. J Hazard Mater 2020; 395:122621. [PMID: 32289630 DOI: 10.1016/j.jhazmat.2020.122621] [Citation(s) in RCA: 110] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 03/15/2020] [Accepted: 03/30/2020] [Indexed: 06/11/2023]
Abstract
Embryonic stage is important for the development of aquatic animals, and embryonic chorion is an efficient barrier against exogenous pollutants. The efficient barrier function of zebrafish (Danio rerio) embryonic chorions against micro- and nano- polystyrene (PS) particles was observed. Embryonic chorions presented high affinity to PS particles. The covering layer of PS particles on the outer surface of chorions affected the patency of pores in chorions, and the nano- PS particles exerted a considerable effect. The accelerated heart rate and blood flow velocity in the embryos indicated that the PS particles adhering to embryonic chorions might cause an internal hypoxic microenvironment in the embryos. The coating of PS particles on embryonic chorions also resulted in delayed hatching of the embryos. The observed development toxicity induced by the nano- and micro-PS particles was confirmed via the expressions of metabolic pathways related to antioxidant system. The pathways of biosynthesis of unsaturated fatty acid, linoleic acid metabolism and alanine, and aspartate and glutamate metabolism extensively altered when the embryos were exposed to PS particles, especially to the nano- PS particles. Although micro- and nano- plastic particles can be efficiently blocked by embryonic chorions, they can still affect the early development of aquatic organisms.
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Affiliation(s)
- Zhenghua Duan
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Xinyue Duan
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Shuang Zhao
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Xiaoli Wang
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Jiao Wang
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin, 300384, China
| | - Yubin Liu
- Ministry of Education, Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Yawen Peng
- Ministry of Education, Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Zhiyuan Gong
- Department of Biological Sciences, National University of Singapore, Singapore, 117543, Singapore
| | - Lei Wang
- Ministry of Education, Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China.
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Noh MY, Kim SH, Gorman MJ, Kramer KJ, Muthukrishnan S, Arakane Y. Yellow-g and Yellow-g2 proteins are required for egg desiccation resistance and temporal pigmentation in the Asian tiger mosquito, Aedes albopictus. Insect Biochem Mol Biol 2020; 122:103386. [PMID: 32315743 DOI: 10.1016/j.ibmb.2020.103386] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 03/17/2020] [Accepted: 04/08/2020] [Indexed: 06/11/2023]
Abstract
Eggs from Aedes mosquitoes exhibit desiccation resistance that helps them to survive and spread as human disease vectors throughout the world. Previous studies have suggested that eggshell/chorion melanization and/or serosal cuticle formation are important for desiccation resistance. In this study, using dsRNAs for target genes, we analyzed the functional importance of two ovary-specific yellow genes, AalY-g and AalY-g2, in the resistance to egg desiccation of the Asian tiger mosquito, Aedes albopictus, a species in which neither the timing of the melanization nor temporal development of the serosal cuticle is correlated with desiccation resistance. Injections of dsAalY-g, dsAalY-g2 or dsAalY-g/g2 (co-injection) into adult females have no effect on their fecundity. However, initial melanization is delayed by 1-2 h with the eggshells eventually becoming black similar to that observed in eggs from dsEGFP-injected control females. In addition, the shape of the eggs from dsAalY-g, -g2 and -g/g2-treated females is abnormally crescent-shaped and the outermost exochorion is more fragile and partially peeled off. dsEGFP control eggs, like those from the wild-type strain, acquire resistance to desiccation between 18 and 24 h after oviposition (HAO). In contrast, ~80% of the 24 HAO dsAalY-g and dsAalY-g2 eggs collapse when they are transferred to a low humidity environment. In addition, there is no electron-dense outer endochorion evident in either dsAalY-g or dsAalY-g2 eggs. These results support the hypothesis that AalY-g and AalY-g2 regulate the timing of eggshell darkening and are required for integrity of the exochorion as well as for rigidity, normal morphology and formation of the outer endochorion, a structure that apparently is critical for desiccation resistance of the Ae. albopictus egg.
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Affiliation(s)
- Mi Young Noh
- Department of Forestry, Chonnam National University, Gwangju, 500-757, South Korea.
| | - Sung Hyun Kim
- Department of Applied Biology, Chonnam National University, Gwangju, 500-757, South Korea
| | - Maureen J Gorman
- Department of Biochemistry and Molecular Biophysics, Kansas State University, Chalmers Hall, Manhattan, KS, 66506, USA
| | - Karl J Kramer
- Department of Biochemistry and Molecular Biophysics, Kansas State University, Chalmers Hall, Manhattan, KS, 66506, USA
| | - Subbaratnam Muthukrishnan
- Department of Biochemistry and Molecular Biophysics, Kansas State University, Chalmers Hall, Manhattan, KS, 66506, USA
| | - Yasuyuki Arakane
- Department of Applied Biology, Chonnam National University, Gwangju, 500-757, South Korea.
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25
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Singh B, Mal G, Kues WA, Yadav PS. The domesticated buffalo - An emerging model for experimental and therapeutic use of extraembryonic tissues. Theriogenology 2020; 151:95-102. [PMID: 32320839 DOI: 10.1016/j.theriogenology.2020.04.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 03/12/2020] [Accepted: 04/04/2020] [Indexed: 12/16/2022]
Abstract
Large animals play important roles as model animals for biomedical sciences and translational research. The water buffalo (Bubalus bubalis) is an economically important, multipurpose livestock species. Important assisted reproduction techniques, such as in vitro fertilization, cryo-conservation of sperm and embryos, embryo transfer, somatic cell nuclear transfer, genetic engineering, and genome editing have been successfully applied to buffaloes. Recently, detailed whole genome data and transcriptome maps have been generated. In addition, rapid progress has been made in stem cell biology of the buffalo. Apart from embryonic stem cells, bubaline extra-embryonic stem cells have gained particular interest. The multipotency of non-embryonic stem cells has been revealed, and their utility in basic and applied research is currently investigated. In particular, success achieved in bubaline extra-embryonic stem cells may have important roles in experimental biology and therapeutic regenerative medicine. Progress in other farm animals in assisted reproduction techniques, stem cell biology and genetic engineering, which could be of importance for buffalo, will also be briefly summarized.
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Affiliation(s)
- Birbal Singh
- ICAR-Indian Veterinary Research Institute, Regional Station Palampur, 176 061, India
| | - Gorakh Mal
- ICAR-Indian Veterinary Research Institute, Regional Station Palampur, 176 061, India
| | | | - Prem S Yadav
- ICAR-Central Institute for Research on Buffaloes, Hisar, 125001, India.
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26
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Hau HTA, Ogundele O, Hibbert AH, Monfries CAL, Exelby K, Wood NJ, Nevarez-Mejia J, Carbajal MA, Fleck RA, Dermit M, Mardakheh FK, Williams-Ward VC, Pipalia TG, Conte MR, Hughes SM. Maternal Larp6 controls oocyte development, chorion formation and elevation. Development 2020; 147:dev187385. [PMID: 32054660 PMCID: PMC7055395 DOI: 10.1242/dev.187385] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 01/23/2020] [Indexed: 12/19/2022]
Abstract
La-related protein 6 (Larp6) is a conserved RNA-binding protein found across eukaryotes that has been suggested to regulate collagen biogenesis, muscle development, ciliogenesis, and various aspects of cell proliferation and migration. Zebrafish have two Larp6 family genes: larp6a and larp6b Viable and fertile single and double homozygous larp6a and larp6b zygotic mutants revealed no defects in muscle structure, and were indistinguishable from heterozygous or wild-type siblings. However, larp6a mutant females produced eggs with chorions that failed to elevate fully and were fragile. Eggs from larp6b single mutant females showed minor chorion defects, but chorions from eggs laid by larp6a;larp6b double mutant females were more defective than those from larp6a single mutants. Electron microscopy revealed defective chorionogenesis during oocyte development. Despite this, maternal zygotic single and double mutants were viable and fertile. Mass spectrometry analysis provided a description of chorion protein composition and revealed significant reductions in a subset of zona pellucida and lectin-type proteins between wild-type and mutant chorions that paralleled the severity of the phenotype. We conclude that Larp6 proteins are required for normal oocyte development, chorion formation and egg activation.
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Affiliation(s)
- Hoi Ting A Hau
- Randall Centre for Cell and Molecular Biophysics, New Hunt's House, Guy's Campus, King's College London, London SE1 1UL, UK
| | - Oluwaseun Ogundele
- Randall Centre for Cell and Molecular Biophysics, New Hunt's House, Guy's Campus, King's College London, London SE1 1UL, UK
| | - Andrew H Hibbert
- Randall Centre for Cell and Molecular Biophysics, New Hunt's House, Guy's Campus, King's College London, London SE1 1UL, UK
| | - Clinton A L Monfries
- Randall Centre for Cell and Molecular Biophysics, New Hunt's House, Guy's Campus, King's College London, London SE1 1UL, UK
| | - Katherine Exelby
- Randall Centre for Cell and Molecular Biophysics, New Hunt's House, Guy's Campus, King's College London, London SE1 1UL, UK
| | - Natalie J Wood
- Randall Centre for Cell and Molecular Biophysics, New Hunt's House, Guy's Campus, King's College London, London SE1 1UL, UK
| | - Jessica Nevarez-Mejia
- Randall Centre for Cell and Molecular Biophysics, New Hunt's House, Guy's Campus, King's College London, London SE1 1UL, UK
| | | | - Roland A Fleck
- Centre for Ultrastructural Imaging, King's College London, London SE1 1UL, UK
| | - Maria Dermit
- Barts Cancer Institute, Queen Mary University of London, John Vane Science Centre, Charterhouse Square, London EC1M 6BQ, UK
| | - Faraz K Mardakheh
- Barts Cancer Institute, Queen Mary University of London, John Vane Science Centre, Charterhouse Square, London EC1M 6BQ, UK
| | - Victoria C Williams-Ward
- Randall Centre for Cell and Molecular Biophysics, New Hunt's House, Guy's Campus, King's College London, London SE1 1UL, UK
| | - Tapan G Pipalia
- Randall Centre for Cell and Molecular Biophysics, New Hunt's House, Guy's Campus, King's College London, London SE1 1UL, UK
| | - Maria R Conte
- Randall Centre for Cell and Molecular Biophysics, New Hunt's House, Guy's Campus, King's College London, London SE1 1UL, UK
| | - Simon M Hughes
- Randall Centre for Cell and Molecular Biophysics, New Hunt's House, Guy's Campus, King's College London, London SE1 1UL, UK
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Abstract
Aquaporins (AQPs) are water channels proteins that facilitate water flux across cell membranes in response to osmotic gradients. Despite of the differences in the mammalian placentas, the conserved combination of AQPs expressed in placental and fetal membranes throughout gestation suggests that these proteins may be important in the regulation of fetal water homeostasis. Thus, AQPs may regulate the amniotic fluid volume and participate in the trans-placental transfer of water. Apart from their classical roles, recent studies have revealed that placental AQPs may also cooperate in cellular processes such as the migration and the apoptosis of the trophoblasts. Aquaglyceroporins can also participate in the energy metabolism and in the urea elimination across the placenta. Many factors including oxygen, hormones, acid-basis homeostasis, maternal dietary status, interaction with other transport proteins and osmotic stress are proposed to regulate their expression and function during gestation and alterations result in pathological pregnancies.
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Affiliation(s)
- Alicia E Damiano
- Laboratorio de Biología de la Reproducción, Instituto de Fisiología y Biofísica Bernardo Houssay (IFIBIO)-CONICET-Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina; Cátedra de Biología Celular y Molecular, Departamento de Ciencias Biológicas, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina.
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28
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Chang YY, Kim SH, Goh MS, Yun JH. Comparative preclinical assessment of the use of dehydrated human amnion/ chorion membrane to repair perforated sinus membranes. J Periodontal Implant Sci 2019; 49:330-343. [PMID: 31681490 PMCID: PMC6819694 DOI: 10.5051/jpis.2019.49.5.330] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 09/12/2019] [Accepted: 09/15/2019] [Indexed: 12/26/2022] Open
Abstract
Purpose The aim of this study was to evaluate the use of dehydrated human amnion/chorion membrane (dHACM) to repair perforated sinus membranes in rabbits. Methods Bilateral surgical windows (7.5-mm diameter) were prepared on the nasal bones of 14 rabbits. Standardized circular perforations (5-mm diameter) were made in the sinus membrane by manipulating implant twist drills. The perforated sinus membranes were repaired using dHACM or a resorbable collagen membrane (CM). The negative control (NC) group did not undergo perforated sinus membrane repair, while the positive control (PC) group underwent sinus augmentation without perforations. The same amount of deproteinized porcine bone mineral was grafted in all 4 groups. After 6 weeks, micro-computed tomography (micro-CT) and histomorphometric evaluations were conducted. Results The micro-CT analysis revealed that the total augmented volume was not significantly different among the groups. In the dHACM group, newly formed bone filled the augmented area with remaining biomaterials; however, non-ciliated flat epithelium and inflammatory cells were observed on the healed sinus membrane. Histometric analysis showed that the percentage of newly formed bone area in the dHACM group did not differ significantly from that in the CM group. The dHACM group showed a significantly higher percentage of newly formed bone area than the NC group, but there was no significant difference between the dHACM and PC groups. Conclusions dHACM could be a feasible solution for repairing sinus membrane perforations that occur during sinus floor augmentation.
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Affiliation(s)
- Yun-Young Chang
- Department of Dentistry, Inha International Medical Center, Incheon, Korea
| | - Su-Hwan Kim
- Department of Periodontics, Asan Medical Center & Department of Dentistry, University of Ulsan College of Medicine, Seoul, Korea
| | - Mi-Seon Goh
- Department of Periodontology, College of Dentistry and Institute of Oral Bioscience, Chonbuk National University, Jeonju, Korea
| | - Jeong-Ho Yun
- Department of Periodontology, College of Dentistry and Institute of Oral Bioscience, Chonbuk National University, Jeonju, Korea.,Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Korea
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29
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Abstract
Amnion and chorion products show great promise and have real potential to be mainstays of treatment for chronic, nonhealing wounds. Although amniotic products do carry a cost, the decrease in time to healing, with the assumed subsequent decrease in complication and infection rates, should also be taken into consideration. These products, with their unique biologic potential and availability in the clinical setting, may prove to be beneficial in a vast array of podiatric surgical applications.
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30
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Nisha KJ, Choudhury SA, Guru S. Objective evaluation of healing and esthetic outcome of root coverage procedure using chorion membrane: a case series. Cell Tissue Bank 2019; 20:501-511. [PMID: 31446503 DOI: 10.1007/s10561-019-09783-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Revised: 08/19/2019] [Accepted: 08/21/2019] [Indexed: 11/25/2022]
Abstract
The ultimate goal of any periodontal plastic surgery aimed to treat gingival recession is predictable recession coverage and esthetic outcome. Due to the post-operative morbidity and discomfort related to subepithelial connective tissue graft, various other methods have been introduced including the use of fetal membranes. The fetal membranes have shown promising results in medicine and recently in the field of regenerative dentistry and could possibly become a viable alternative to autogenous grafts. This article reports a series of cases of Miller's class I gingival recession that were treated by chorion membrane combined with coronally advanced flap and evaluated using objective variables for post-operative healing and esthetics. Nine systemically healthy subjects with ten Miller's class I buccal gingival recession were included in the study. Clinical parameters were recorded at baseline, 3 months and 6 months post-surgery; wound healing index (WHI) was recorded one week post-surgery. At the end of 6 months, the percentage of root coverage and the root coverage esthetic score (RES) were calculated. The results showed statistically significant (p < 0.05) improvement in most of the parameters. The mean percentage of root coverage obtained was 62.20 ± 21.99% ranging from 33.3 to 100%. The WHI showed excellent healing score and RES assessed at the end of six months showed superior esthetic results. The chorion membrane along with coronally advanced flap is a predictable procedure for root coverage with better post surgical healing and superior esthetics.
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Affiliation(s)
- K J Nisha
- Department of Periodontics, Vydehi Institute of Dental Sciences and Research Centre, Whitefield, Bangalore, 560066, India.
| | - Suhail A Choudhury
- Department of Periodontics, Vydehi Institute of Dental Sciences and Research Centre, Whitefield, Bangalore, 560066, India
| | - Sanjeela Guru
- Department of Periodontics, Vydehi Institute of Dental Sciences and Research Centre, Whitefield, Bangalore, 560066, India
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Kim TG, Do Ki K, Lee MK, So JW, Chung SK, Kang J. Comparison of cytokine expression and ultrastructural alterations in fresh-frozen and dried electron beam-irradiated human amniotic membrane and chorion. Cell Tissue Bank 2019; 20:163-172. [PMID: 31062125 DOI: 10.1007/s10561-019-09748-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 01/03/2019] [Indexed: 10/26/2022]
Abstract
The purpose of the current study was to compare the effects of drying and fresh-freezing on human amniotic membrane (HAM) and amnion/chorion membrane (HACM) in terms of histological and structural characteristics and cytokine levels. HAM and HACM samples, obtained from six placentae, were investigated. HAM and HACM were dried, electron beam-irradiated (dehydration group; d-HAM/d-HACM), or fresh-frozen (freezing group; f-HAM/f-HACM). Luminex assay was used to assay the levels of 15 cytokines. The ultrastructural characteristics of HAM and HACM were evaluated using light and transmission electron microscopies. Total cytokine contents did not show the statistical difference between dehydration and fresh-freezing process. Significantly higher levels of total cytokines were observed in HACM than in HAM. Epidermal growth factor (EGF) level was significantly higher in d-HAM than in the other samples. The levels of most of the other growth factors were higher in HACM than in HAM, but there was no statistical difference between the dehydration process and the fresh-freezing process. The levels of the cytokines, other than the growth factors, were higher in HACM than in HAM, and higher concentrations of cytokines were observed in the freezing group than in the dehydration group. Histological examination revealed that the dehydration group had thinner tissues than the freezing group, but the structural stability, including the basement membrane, did not differ between the two groups. Microscopic structures such as microvilli and nuclei were well-preserved in the freezing group, based on the results of the transmission electron microscopy. Our dehydration process maintained the histological structure of HAM/HACM and a variety of growth factors and cytokines were identified. Especially, the HAM, processed with the dehydration method, had a higher EGF level than that processed with the fresh-freezing method. Therefore, dehydration method can be used to effectively promote wound repair.
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Affiliation(s)
- Tae Gi Kim
- Department of Ophthalmology, Kyung Hee University Hospital at Gangdong, Kyung Hee University, # 892, Dongnam-ro, Gangdong-gu, Seoul, 05278, Republic of Korea
| | - Kyung Do Ki
- Department of Obstetrics and Gynecology, Kyung Hee University Hospital at Gangdong, Kyung Hee University, Seoul, Republic of Korea
| | - Myeong-Kyu Lee
- Department of Research and Development, Korea Public Tissue Bank, Seoul, Republic of Korea
| | - Jung-Won So
- Department of Research and Development, Korea Public Tissue Bank, Seoul, Republic of Korea
| | | | - Jaheon Kang
- Department of Ophthalmology, Kyung Hee University Hospital at Gangdong, Kyung Hee University, # 892, Dongnam-ro, Gangdong-gu, Seoul, 05278, Republic of Korea.
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Wei D, Zhang YX, Liu YW, Li WJ, Chen ZX, Smagghe G, Wang JJ. Gene expression profiling of ovary identified eggshell proteins regulated by 20-hydroxyecdysone in Bactrocera dorsalis. Comp Biochem Physiol Part D Genomics Proteomics 2019; 30:206-216. [PMID: 30909163 DOI: 10.1016/j.cbd.2019.03.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 03/13/2019] [Accepted: 03/16/2019] [Indexed: 02/03/2023]
Abstract
The oriental fruit fly, Bactrocera dorsalis, is one of the most destructive pests worldwide. The frequent use of chemical insecticides has led B. dorsalis to develop resistance to many insecticides in recent decades. New high-throughput-sequenced transcriptomes, as well as genomes, have revealed a large number of reference genes for functional target identification. Here, we performed digital gene expression profiling of ovary and testis of B. dorsalis adults. Various genes were identified to be highly expressed in B. dorsalis ovary. The genes encoding components of eggshell, vitelline membrane proteins (Vmps) and chorion-related proteins, were identified to be tissue-specifically expressed in ovary. Five cytochrome P450 genes were also identified to be highly expressed in ovary. Three of them were ecdysone synthesis pathway genes indicating the ovary as a potential synthesis site of female. The up-regulated expression of Vmps by exogenous 20-hydroxyecdysone implied the hormonal regulation of eggshell formation during ovarian development. Many other genes with potential functions in ovarian development were also identified, including vitellogenin receptor, insulin receptor, NASP protein, and odorant binding protein. These findings should promote our understanding of the regulation of vitellogenesis and eggshell formation and enable exploration of potentially novel pest control targets.
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Affiliation(s)
- Dong Wei
- Key Laboratory of Entomology and Pest Control Engineering of Chongqing, College of Plant Protection, Southwest University, Chongqing 400715, China; International Joint Laboratory of China-Belgium on Sustainable Crop Pest Control, Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China; Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent 9000, Belgium
| | - Ying-Xin Zhang
- Key Laboratory of Entomology and Pest Control Engineering of Chongqing, College of Plant Protection, Southwest University, Chongqing 400715, China; International Joint Laboratory of China-Belgium on Sustainable Crop Pest Control, Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Yu-Wei Liu
- Key Laboratory of Entomology and Pest Control Engineering of Chongqing, College of Plant Protection, Southwest University, Chongqing 400715, China; International Joint Laboratory of China-Belgium on Sustainable Crop Pest Control, Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Wei-Jun Li
- Key Laboratory of Entomology and Pest Control Engineering of Chongqing, College of Plant Protection, Southwest University, Chongqing 400715, China; International Joint Laboratory of China-Belgium on Sustainable Crop Pest Control, Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Zhi-Xian Chen
- Key Laboratory of Entomology and Pest Control Engineering of Chongqing, College of Plant Protection, Southwest University, Chongqing 400715, China; International Joint Laboratory of China-Belgium on Sustainable Crop Pest Control, Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Guy Smagghe
- Key Laboratory of Entomology and Pest Control Engineering of Chongqing, College of Plant Protection, Southwest University, Chongqing 400715, China; International Joint Laboratory of China-Belgium on Sustainable Crop Pest Control, Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China; Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent 9000, Belgium
| | - Jin-Jun Wang
- Key Laboratory of Entomology and Pest Control Engineering of Chongqing, College of Plant Protection, Southwest University, Chongqing 400715, China; International Joint Laboratory of China-Belgium on Sustainable Crop Pest Control, Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China.
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Huang Q, Liu Y, Chen Y, Fang C, Chi Y, Zhu H, Lin Y, Ye G, Dong S. New insights into the metabolism and toxicity of bisphenol A on marine fish under long-term exposure. Environ Pollut 2018; 242:914-921. [PMID: 30373036 DOI: 10.1016/j.envpol.2018.07.048] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 07/10/2018] [Accepted: 07/10/2018] [Indexed: 06/08/2023]
Abstract
Bisphenol A (BPA) exposure receives great ecotoxicological concern. However, gaps in knowledge, such as metabolism of BPA and inconsistent reports on reproductive toxicity, still exist. In this study, a marine fish model (Oryzias melastigma) was exposed to serial concentrations of BPA throughout its whole life cycle. The level of BPA-glucuronide (BPAG) dramatically increased throughout the embryonic stage since 4 dpf. Accordingly, the mRNA level and enzymatic activity of UDP-glucuronosyltransferases (UGTs) increased across the embryonic stage. The mRNA level of UGT2 subtype rather than UGT1 or UGT5 showed a concentration dependent response to BPA exposure. BPA exposure led to the morphological disruption of the chorion and villi as shown by scanning electron microscopy; however, the hatchability was not significantly influenced after exposure. Newly hatching larvae were continuously exposed to BPA for 120 days. Lower mRNA levels of hormone metabolism-related genes, decreased ratio of E2/T, slower ovary development and decreased egg production confirmed the inhibitory effect of BPA on reproduction. Overall, our results showed the conjugation of BPA into BPAG by UGT2 at the embryonic stage and convinced the reproductive toxicity from multiple levels after whole life exposure to BPA.
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Affiliation(s)
- Qiansheng Huang
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
| | - Yiyao Liu
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
| | - Yajie Chen
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
| | - Chao Fang
- Third Institute of Oceanography State Oceanic Administration, Xiamen 361005, PR China
| | - Yulang Chi
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
| | - Huimin Zhu
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
| | - Yi Lin
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
| | - Guozhu Ye
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
| | - Sijun Dong
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China.
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Hou W, Jerome-Majewska LA. TMED2/emp24 is required in both the chorion and the allantois for placental labyrinth layer development. Dev Biol 2018; 444:20-32. [PMID: 30236446 DOI: 10.1016/j.ydbio.2018.09.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Revised: 09/10/2018] [Accepted: 09/10/2018] [Indexed: 01/08/2023]
Abstract
TMED2, a member of the transmembrane emp24 domain (TMED) family, is required for transport of cargo proteins between the ER and Golgi. TMED2 is also important for normal morphogenesis of mouse embryos and their associated placenta, and in fact Tmed2 homozygous mutant embryos arrest at mid-gestation due to a failure of placental labyrinth layer formation. Differentiation of the placental labyrinth layer depends on chorioallantoic attachment (contact between the chorion and allantois), and branching morphogenesis (mingling of cells from these two tissues). Since Tmed2 mRNA was found in both the chorion and allantois, and 50% of Tmed2 homozygous mutant embryos failed to undergo chorioallantoic attachment, the tissue-specific requirement of Tmed2 during placental labyrinth layer formation remained a mystery. Herein, we report differential localization of TMED2 protein in the chorion and allantois, abnormal ER retention of Fibronectin in Tmed2 homozygous mutant allantoises and cell-autonomous requirement for Tmed2 in the chorion for chorioallantoic attachment and fusion. Using an ex vivo model of explanted chorions and allantoises, we showed that chorioallantoic attachment failed to occur in 50% of samples when homozygous mutant chorions were recombined with wild type allantoises. Furthermore, though expression of genes associated with trophoblast differentiation was maintained in Tmed2 mutant chorions with chorioallantoic attachment, expression of these genes was attenuated. In addition, Tmed2 homozygous mutant allantoises could undergo branching morphogenesis, however the region of mixing between mutant and wild type cells was reduced, and expression of genes associated with trophoblast differentiation was also attenuated. Our data also suggest that Fibronectin is a cargo protein of TMED2 and indicates that Tmed2 is required cell-autonomously and non-autonomously in the chorion and the allantois for placental labyrinth layer formation.
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Affiliation(s)
- Wenyang Hou
- Department of Human Genetics, McGill University, 1205 Avenue Docteur Penfield, N5/13, Montreal, QC, Canada
| | - Loydie A Jerome-Majewska
- Department of Human Genetics, McGill University, 1205 Avenue Docteur Penfield, N5/13, Montreal, QC, Canada; Department of Anatomy and Cell Biology, McGill University, Montreal, QC, Canada; Department of Pediatrics, McGill University, 1001 Decarie Blvd, EM02210, Montreal, QC, Canada H4A 3J1; McGill University Health Centre Glen Site, 1001 Decarie Blvd, EM0.2210, Montreal, QC, Canada H4A 3J1.
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Rotomskis R, Jurgelėnė Ž, Stankevičius M, Stankevičiūtė M, Kazlauskienė N, Jokšas K, Montvydienė D, Kulvietis V, Karabanovas V. Interaction of carboxylated CdSe/ZnS quantum dots with fish embryos: Towards understanding of nanoparticles toxicity. Sci Total Environ 2018; 635:1280-1291. [PMID: 29710581 DOI: 10.1016/j.scitotenv.2018.04.206] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 04/15/2018] [Accepted: 04/16/2018] [Indexed: 06/08/2023]
Abstract
Due to colloidal instability even with protective coatings, nanoparticles tend to aggregate in complex environments and possibly interact with biota. In this study, visualization of quantum dots (QDs) interaction with rainbow trout (Oncorhynchus mykiss) embryos was performed. Studies on zebrafish (Danio rerio) and pearl gourami (Trichogaster leerii) embryos have shown that QDs interact with embryos in a general manner and their affects are independent on the type of the embryo. It was demonstrated that carboxylated CdSe/ZnS QDs (4 nM) were aggregating in accumulation media and formed agglomerates on the surface of fish embryos under 1-12 days incubation in deep-well water. Detailed analysis of QDs distribution on fish embryos surface and investigation of the penetration of QDs through embryo's membrane showed that the chorion protects embryos from the penetration through the chorion and the accumulation of nanoparticles inside the embryos. Confocal microscopy and spectroscopy studies on rainbow trout embryos demonstrated that QDs cause chorion damage, due to QDs aggregation on the surface of chorion, even the formation of the agglomerates at the outer part of the embryos and/or with the mucus were detected. Aggregation of QDs and formation of agglomerates on the outer part of the embryo's membrane caused the intervention of the aggregates to the chorion and even partially destroyed the embryo's chorion. The incorporation of QDs in chorion was confirmed by two methods: in living embryos from a 3D reconstruction view, and in slices of embryos from a histology view. The damage of chorion integrity might have adverse effects on embryonic development. Moreover, for the first time the toxic effect of QDs was separated from the heavy metal toxicity, which is most commonly discussed in the literature to the toxicity of the QDs.
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Affiliation(s)
- Ričardas Rotomskis
- Laboratory of Biomedical Physics, National Cancer Institute, Baublio st. 3b, LT-08660 Vilnius, Lithuania; Biophotonics Group of Laser Research Center, Vilnius University, Sauletekio ave. 9, LT-10222 Vilnius, Lithuania.
| | - Živilė Jurgelėnė
- Laboratory of Ecology and Physiology of Hydrobionts, Nature Research Centre, Akademijos st. 2, LT-08412 Vilnius, Lithuania.
| | - Mantas Stankevičius
- Laboratory of Biomedical Physics, National Cancer Institute, Baublio st. 3b, LT-08660 Vilnius, Lithuania; Biophotonics Group of Laser Research Center, Vilnius University, Sauletekio ave. 9, LT-10222 Vilnius, Lithuania
| | - Milda Stankevičiūtė
- Laboratory of Genotoxicology, Nature Research Centre, Akademijos st. 2, LT-08412 Vilnius, Lithuania
| | - Nijolė Kazlauskienė
- Laboratory of Ecology and Physiology of Hydrobionts, Nature Research Centre, Akademijos st. 2, LT-08412 Vilnius, Lithuania
| | - Kęstutis Jokšas
- Geology and Geography Institute of Nature Research Centre, Akademijos st. 2, LT-08412 Vilnius, Lithuania; Vilnius University, Faculty of Chemistry and Geosciences, Naugarduko st. 24, LT-03225 Vilnius, Lithuania
| | - Danguolė Montvydienė
- Laboratory of Ecology and Physiology of Hydrobionts, Nature Research Centre, Akademijos st. 2, LT-08412 Vilnius, Lithuania
| | - Vytautas Kulvietis
- Laboratory of Biomedical Physics, National Cancer Institute, Baublio st. 3b, LT-08660 Vilnius, Lithuania
| | - Vitalijus Karabanovas
- Laboratory of Biomedical Physics, National Cancer Institute, Baublio st. 3b, LT-08660 Vilnius, Lithuania; Department of Chemistry and Bioengineering, Vilnius Gediminas Technical University, Sauletekio ave. 11, LT-10223 Vilnius, Lithuania
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Dobreva MP, Abon Escalona V, Lawson KA, Sanchez MN, Ponomarev LC, Pereira PNG, Stryjewska A, Criem N, Huylebroeck D, Chuva de Sousa Lopes SM, Aerts S, Zwijsen A. Amniotic ectoderm expansion in mouse occurs via distinct modes and requires SMAD5-mediated signalling. Development 2018; 145:dev.157222. [PMID: 29884675 DOI: 10.1242/dev.157222] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 05/30/2018] [Indexed: 12/18/2022]
Abstract
Upon gastrulation, the mammalian conceptus transforms rapidly from a simple bilayer into a multilayered embryo enveloped by its extra-embryonic membranes. Impaired development of the amnion, the innermost membrane, causes major malformations. To clarify the origin of the mouse amnion, we used single-cell labelling and clonal analysis. We identified four clone types with distinct clonal growth patterns in amniotic ectoderm. Two main types have progenitors in extreme proximal-anterior epiblast. Early descendants initiate and expand amniotic ectoderm posteriorly, while descendants of cells remaining anteriorly later expand amniotic ectoderm from its anterior side. Amniogenesis is abnormal in embryos deficient in the bone morphogenetic protein (BMP) signalling effector SMAD5, with delayed closure of the proamniotic canal, and aberrant amnion and folding morphogenesis. Transcriptomics of individual Smad5 mutant amnions isolated before visible malformations and tetraploid chimera analysis revealed two amnion defect sets. We attribute them to impairment of progenitors of the two main cell populations in amniotic ectoderm and to compromised cuboidal-to-squamous transition of anterior amniotic ectoderm. In both cases, SMAD5 is crucial for expanding amniotic ectoderm rapidly into a stretchable squamous sheet to accommodate exocoelom expansion, axial growth and folding morphogenesis.
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Affiliation(s)
- Mariya P Dobreva
- VIB-KU Leuven Center for Brain and Disease Research, Leuven 3000, Belgium .,Department of Human Genetics, KU Leuven, Leuven 3000, Belgium
| | - Vanesa Abon Escalona
- VIB-KU Leuven Center for Brain and Disease Research, Leuven 3000, Belgium.,Department of Human Genetics, KU Leuven, Leuven 3000, Belgium.,Department of Cardiovascular Sciences, KU Leuven, Leuven 3000, Belgium
| | - Kirstie A Lawson
- MRC Human Genetics Unit, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH4 2XU, UK
| | | | - Ljuba C Ponomarev
- Department of Cardiovascular Sciences, KU Leuven, Leuven 3000, Belgium
| | - Paulo N G Pereira
- VIB-KU Leuven Center for Brain and Disease Research, Leuven 3000, Belgium.,Department of Human Genetics, KU Leuven, Leuven 3000, Belgium
| | - Agata Stryjewska
- Department of Development and Regeneration, KU Leuven, Leuven 3000, Belgium
| | - Nathan Criem
- VIB-KU Leuven Center for Brain and Disease Research, Leuven 3000, Belgium.,Department of Human Genetics, KU Leuven, Leuven 3000, Belgium.,Department of Cardiovascular Sciences, KU Leuven, Leuven 3000, Belgium
| | - Danny Huylebroeck
- Department of Development and Regeneration, KU Leuven, Leuven 3000, Belgium
| | | | - Stein Aerts
- Department of Human Genetics, KU Leuven, Leuven 3000, Belgium
| | - An Zwijsen
- VIB-KU Leuven Center for Brain and Disease Research, Leuven 3000, Belgium .,Department of Human Genetics, KU Leuven, Leuven 3000, Belgium.,Department of Cardiovascular Sciences, KU Leuven, Leuven 3000, Belgium
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Jin J, Richardson L, Sheller-Miller S, Zhong N, Menon R. Oxidative stress induces p38MAPK-dependent senescence in the feto-maternal interface cells. Placenta 2018; 67:15-23. [PMID: 29941169 PMCID: PMC6023622 DOI: 10.1016/j.placenta.2018.05.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 04/27/2018] [Accepted: 05/16/2018] [Indexed: 12/25/2022]
Abstract
OBJECTIVE This study tested the mechanism of the oxidative stress (OS)-induced senescence pathway at the feto-maternal interface cells. METHODS Primary amnion mesenchymal cells (AMCs), chorion and decidual cells isolated from the placental membranes of women at normal term (not in labor) were exposed to OS-inducing cigarette smoke extract (CSE) for 48 h. Reactive oxygen species (ROS) was measured using 2'7'-dichlorodihydrofluorescein. Western blot analysis determined phosphorylated (P) p38MAPK and p53 expression. Senescence-associated β-Galactosidase (SA-β-Gal) and matrix metallopeptidase 9 (MMP9) histochemistry were used to measure senescence and inflammation respectively. Cotreatment of cells with the antioxidant, N-acetyl cysteine (NAC), or the p38MAPK inhibitor, SB203580 (SB), verified the activation specificity. RESULTS CSE increased ROS production from AMCs, chorion cells, and decidual cells (P < 0.05) compared to controls. Western blot analysis determined that CSE induced p38MAPK activation (P < 0.05) and cotreatment with NAC inhibited ROS production and p38MAPK activation (P < 0.05) in all cell types. CSE did not increase p53 phosphorylation in any of the cells; however, AMCs showed constitutive P-p53 expression. CSE increased senescence in AMCs and chorion cells compared to controls (P = 0.01 and P = 0.003, respectively); however, senescence was not observed in decidual cells. Senescence was significantly reduced following cotreatment with SB and NAC (AMCs; P = 0.01 and chorion; P = 0.009). CSE increased MMP9 in all cells that was reduced by NAC. CONCLUSION OS induced p38MAPK activation and inflammation in all cell types that was associated with senescence in fetal cells but not in maternal cells.
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Affiliation(s)
- Jin Jin
- Department of Gynecology and Obstetrics, Nanfang Hospital, Southern Medical University, No.1838, North Guangzhou Avenue, Guangzhou, 510515, China; Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine and Perinatal Research, The University of Texas Medical Branch at Galveston, Galveston, TX, USA
| | - Lauren Richardson
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine and Perinatal Research, The University of Texas Medical Branch at Galveston, Galveston, TX, USA; Department of Neuroscience, Cell Biology, and Anatomy, The University of Texas Medical Branch at Galveston, Galveston, TX, USA
| | - Samantha Sheller-Miller
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine and Perinatal Research, The University of Texas Medical Branch at Galveston, Galveston, TX, USA; Department of Biochemistry and Molecular Biology, The University of Texas Medical Branch at Galveston, Galveston, TX, USA
| | - Nanbert Zhong
- New York State Institute for Basic Research in Development Disabilities, New York, NY, 10314, USA
| | - Ramkumar Menon
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine and Perinatal Research, The University of Texas Medical Branch at Galveston, Galveston, TX, USA.
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Guignot F, Fortini D, Grateau S, Burette C, Dreyfus V, Moreau-Vauzelle C, Aupinel P, Blesbois E. Early steps of cryopreservation of day one honeybee (Apis mellifera) embryos treated with low-frequency sonophoresis. Cryobiology 2018; 83:27-33. [PMID: 29935178 DOI: 10.1016/j.cryobiol.2018.06.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 05/31/2018] [Accepted: 06/19/2018] [Indexed: 11/20/2022]
Abstract
Honeybees, major providers of pollination, are endangered in many areas. Embryo cryopreservation may be a very useful tool to maintain their genetic diversity. However, it is complex in insects, because embryos are chill sensitive and are surrounded by two protectant membranes, the chorion and vitelline. These membranes prevent penetration of cryoprotectant in the embryos. This study aimed to test different conditions of embryo preparation before cryopreservation, including low-frequency sonophoresis, a physical method of permeabilization, and passages through cryoprotectant solutions. Apis mellifera ligustica embryos were collected in artificial cell plugs 7.5 h after queens had been caged, in two different seasons (winter, spring) and were then incubated in vitro overnight (16.5 h). Embryos were individually sonicated and then incubated in three cryoprotectant baths (B1 = 10%, B2 = 20% and B3 = 40% of cryoprotectant) and quenched in liquid nitrogen. Artificial cell plugs and in vitro incubation device were efficient in producing future embryos hatching. Embryos stained ruby red with rhodamine B after sonophoresis treatment indicated that low-frequency ultrasound had permeabilized embryos. According to the treatment, different significant hatching rates were obtained after sonophoresis (up to 25%). After three cryoprotectant incubations, best hatching rates were obtained after 10 min in B1 and B2, and 40 s in B3. These results show that sonophoresis is an efficient tool to permeabilize the chorion and vitelline membrane of the day one honeybee embryo allowing a hatching rate of more than 20%. They also show that the season is an important variability factor.
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Conlin SM, Tudor MS, Shim J, Gosse JA, Neilson A, Hamlin HJ. Elevated nitrate alters the metabolic activity of embryonic zebrafish. Environ Pollut 2018; 235:180-185. [PMID: 29289828 DOI: 10.1016/j.envpol.2017.12.069] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 12/18/2017] [Accepted: 12/19/2017] [Indexed: 06/07/2023]
Abstract
Nitrate accumulation in aquatic reservoirs from agricultural pollution has often been overlooked as a water quality hazard, yet a growing body of literature suggests negative effects on human and wildlife health following nitrate exposure. This research seeks to understand differences in oxygen consumption rates between different routes of laboratory nitrate exposure, whether via immersion or injection, in zebrafish (Danio rerio) embryos. Embryos were exposed within 1 h post fertilization (hpf) to 0, 10, and 100 mg/L NO3-N with sodium nitrate, or to counter ion control (CIC) treatments using sodium chloride. Embryos in the immersion treatments received an injection of 4 nL of appropriate treatment solution into the perivitelline space. At 24 hpf, Oxygen Consumption Rates (OCR) were measured and recorded in vivo using the Agilent Technologies XFe96 Extracellular Flux Analyzer and Spheroid Microplate. Immersion exposures did not induce significant changes in OCR, yet nitrate induced significant changes when injected through the embryo chorion. Injection of 10 and 100 mg/L NO3-N down-regulated OCR compared to the control treatment group. Injection of the 100 mg/L CIC also significantly down-regulated OCR compared to the control treatment group. Interestingly, the 100 mg/L NO3-N treatment further down-regulated OCR compared to the 100 mg/L CIC treatment, suggesting the potential for additive effects between the counter ion and the ion of interest. These data support that elevated nitrate exposure can alter normal metabolic activity by changing OCR in 24 hpf embryos. These results highlight the need for regularly examining the counter ion of laboratory nitrate compounds while conducting research with developing zebrafish, and justify examining different routes of laboratory nitrate exposure, as the chorion may act as an effective barrier to nitrate penetration in zebrafish, which may lead to conservative estimates of significant effects in other species for which nitrate more readily penetrates the chorion.
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Affiliation(s)
- Sarah M Conlin
- School of Marine Sciences, Aquaculture Research Institute, University of Maine, 5751 Murray Hall, Orono, ME 04469, USA
| | - M Scarlett Tudor
- Department of Cooperative Extension, University of Maine, Orono, ME 04469, USA; Department of Biology, University of Florida, Gainesville, FL 32611, USA
| | - Juyoung Shim
- Department of Molecular and Biomedical Sciences, University of Maine, Orono, ME 04469, USA
| | - Julie A Gosse
- Department of Molecular and Biomedical Sciences, University of Maine, Orono, ME 04469, USA; Graduate School of Biomedical Science and Engineering, University of Maine, Orono, ME 04469, USA
| | | | - Heather J Hamlin
- School of Marine Sciences, Aquaculture Research Institute, University of Maine, 5751 Murray Hall, Orono, ME 04469, USA.
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Heywood WE, Preece RL, Pryce J, Hallqvist J, Clayton R, Virasami A, Mills K, Sebire NJ. Proteomic profiling reveals sub proteomes of the human placenta. Placenta 2017; 59:69-72. [PMID: 29108639 DOI: 10.1016/j.placenta.2017.09.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 09/25/2017] [Accepted: 09/28/2017] [Indexed: 01/08/2023]
Abstract
Proteomic characterisation of the placenta has largely been focused on effect of disease, anatomical features or specific cell types. We describe an unbiased proteomic mapping analysis to investigate how the placental proteome changes throughout the organ. A transverse slice of a human placenta was sectioned into 1 × 1cm samples. Sections were analysed using label free proteomics. Analysis revealed two distinct sub-proteomes that did not have anatomical significance. One had a muscular proteome and the other had distinct immunomodulation functions. Chorionic plate enriched proteins highlighted the fetal tissues high energy requirements whilst mechanisms of the decidua observed included modulation of cortisone levels.
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Affiliation(s)
- Wendy E Heywood
- Centre for Translational Omics, UCL Great Ormond Street Institute of Child Health, 30 Guilford Street, London, WC1N 1EH UK
| | - Rhian-Lauren Preece
- Histopathology Department, Great Ormond Street Hospital for Children, Great Ormond Street, London, WC1N 3JH, UK
| | - Jeremy Pryce
- Histopathology Department, Great Ormond Street Hospital for Children, Great Ormond Street, London, WC1N 3JH, UK
| | - Jenny Hallqvist
- Centre for Translational Omics, UCL Great Ormond Street Institute of Child Health, 30 Guilford Street, London, WC1N 1EH UK
| | - Robert Clayton
- Centre for Translational Omics, UCL Great Ormond Street Institute of Child Health, 30 Guilford Street, London, WC1N 1EH UK
| | - Alex Virasami
- Histopathology Department, Great Ormond Street Hospital for Children, Great Ormond Street, London, WC1N 3JH, UK
| | - Kevin Mills
- Centre for Translational Omics, UCL Great Ormond Street Institute of Child Health, 30 Guilford Street, London, WC1N 1EH UK
| | - Neil J Sebire
- Histopathology Department, Great Ormond Street Hospital for Children, Great Ormond Street, London, WC1N 3JH, UK.
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Garrido-Gomez T, Ona K, Kapidzic M, Gormley M, Simón C, Genbacev O, Fisher SJ. Severe pre-eclampsia is associated with alterations in cytotrophoblasts of the smooth chorion. Development 2017; 144:767-777. [PMID: 28232601 PMCID: PMC5374356 DOI: 10.1242/dev.146100] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 12/30/2016] [Indexed: 12/12/2022]
Abstract
Pre-eclampsia (PE), which affects ∼8% of first pregnancies, is associated with faulty placentation. Extravillous cytotrophoblasts (CTBs) fail to differentiate properly, contributing to shallow uterine invasion and deficient spiral artery remodeling. We studied the effects of severe PE (sPE) on the smooth chorion portion of the fetal membranes. The results showed a significant expansion of the CTB layer. The cells displayed enhanced expression of stage-specific antigens that extravillous CTBs normally upregulate as they exit the placenta. Transcriptomics revealed the dysregulated expression of many genes (e.g. placental proteins, markers of oxidative stress). We confirmed an sPE-related increase in production of PAPPA1, which releases IGF1 from its binding protein. IGF1 enhanced proliferation of smooth chorion CTBs, a possible explanation for expansion of this layer, which may partially compensate for the placental deficits. Highlighted article: Cytotrophoblasts (CTBs) within the smooth chorion of the human placenta are implicated in severe pre-eclampsia, undergoing significant expansion and changes in gene expression.
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Affiliation(s)
- Tamara Garrido-Gomez
- Center for Reproductive Sciences, University of California San Francisco, San Francisco, CA 94143, USA.,Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California San Francisco, San Francisco, CA 94143, USA.,Fundación Instituto Valenciano de Infertilidad (FIVI), Instituto Universitario IVI, INCLIVA, Biomedical Research Institute, Valencia University, Valencia, 46010, Spain.,Fundación Igenomix, Valencia, 46980, Spain
| | - Katherine Ona
- Center for Reproductive Sciences, University of California San Francisco, San Francisco, CA 94143, USA.,Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California San Francisco, San Francisco, CA 94143, USA
| | - Mirhan Kapidzic
- Center for Reproductive Sciences, University of California San Francisco, San Francisco, CA 94143, USA.,Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California San Francisco, San Francisco, CA 94143, USA
| | - Matthew Gormley
- Center for Reproductive Sciences, University of California San Francisco, San Francisco, CA 94143, USA.,Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California San Francisco, San Francisco, CA 94143, USA
| | - Carlos Simón
- Fundación Instituto Valenciano de Infertilidad (FIVI), Instituto Universitario IVI, INCLIVA, Biomedical Research Institute, Valencia University, Valencia, 46010, Spain.,Fundación Igenomix, Valencia, 46980, Spain.,Department of Obstetrics and Gynecology, School of Medicine, Stanford University, CA 94305, USA
| | - Olga Genbacev
- Center for Reproductive Sciences, University of California San Francisco, San Francisco, CA 94143, USA.,Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California San Francisco, San Francisco, CA 94143, USA
| | - Susan J Fisher
- Center for Reproductive Sciences, University of California San Francisco, San Francisco, CA 94143, USA .,Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California San Francisco, San Francisco, CA 94143, USA.,The Eli & Edythe Broad Center for Regeneration Medicine and Stem Cell Research, University of California San Francisco, San Francisco, CA 94143, USA.,Department of Anatomy, University of California San Francisco, San Francisco, CA 94143, USA
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Steenbergen PJ, Bardine N, Sharif F. Kinetics of glucocorticoid exposure in developing zebrafish: A tracer study. Chemosphere 2017; 183:147-155. [PMID: 28544900 DOI: 10.1016/j.chemosphere.2017.05.059] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 05/02/2017] [Accepted: 05/10/2017] [Indexed: 06/07/2023]
Abstract
In the current study the dynamics of glucocorticoid uptake by zebrafish chorionated embryos from the surrounding medium were studied, using 2.5 μM cortisol or dexamethasone solutions complemented with their tritiated variant. We measured the uptake of radioactive cortisol by embryos during a 1 h submersion. Interestingly, the signal in chorionated embryos was 85% (exposure: 1-2 hpf) or 78% (exposure: 48-49 hpf) of the signal present in an equal volume medium. By comparing embryos measured without chorion, we found that 18-20% of the radioactivity present in chorionated embryos is actually bound to the chorion or located in the perivitelline space. Consequently, embryonic tissue contains radioactivity levels of 60% of a similar volume of medium after 1 h incubation. During early developmental stages (1-48 hpf) exposure of more than 24 h in cortisol was needed to achieve radioactivity levels similar to an equal volume of medium within the embryonic tissue and more than 48 h for dexamethasone. In glucocorticoid-free medium, radioactivity dropped rapidly below 10% for both glucocorticoids, suggesting that the major portion of the embryonic radioactivity was a result of simple diffusion. During later developmental stages (48-96 hpf) initial uptake dynamics were similar, but showed a decrease of tissue radioactivity to 20% of an equal volume of medium after hatching, probably due to development and activation of the hypothalamic pituitary interrenal axis. Uptake is dependent on the developmental stage of the embryo. Furthermore, the presence of the chorion during exposure should be taken into account even when small lipophilic molecules are being tested.
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Affiliation(s)
- Peter Johannes Steenbergen
- Department of Integrative Zoology, Institute of Biology Leiden, Leiden University, Sylviusweg 72, 2333 BE Leiden, The Netherlands; Department of Medical Pharmacology, Leiden/Amsterdam Centre for Drug Research, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Nabila Bardine
- Department of Cell Biology, Institute of Biology Leiden, Leiden University, Sylviusweg 72, 2333 BE Leiden, The Netherlands
| | - Faiza Sharif
- Department of Integrative Zoology, Institute of Biology Leiden, Leiden University, Sylviusweg 72, 2333 BE Leiden, The Netherlands; Interdisciplinary Reseach Centre in Biomedical Materials, COMSATS Institute of Information Technology Lahore, Pakistan.
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Bana N, Sanooghi D, Soleimani M, Hayati Roodbari N, Alavi Moghaddam S, Joghataei MT, Sayahpour FA, Faghihi F. A Comparative Study to Evaluate Myogenic Differentiation Potential of Human Chorion versus Umbilical Cord Blood-derived Mesenchymal Stem Cells. Tissue Cell 2017; 49:495-502. [PMID: 28601197 DOI: 10.1016/j.tice.2017.05.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Revised: 05/01/2017] [Accepted: 05/10/2017] [Indexed: 01/11/2023]
Abstract
OBJECTIVE Musculodegenerative diseases threaten the life of many patients in the world. Since drug administration is not efficient in regeneration of damaged tissues, stem cell therapy is considered as a good strategy to restore the lost cells. Since the efficiency of myogenic differentiation potential of human Chorion- derived Mesenchymal Stem Cells (C-MSCs) has not been addressed so far; we set out to evaluate myogenic differentiation property of these cells in comparison with Umbilical Cord Blood- derived Mesenchymal Stem Cells (UCB-MSCs) in the presence of 5-azacytidine. MATERIALS & METHODS To do that, neonate placenta Umbilical Cord Blood were transferred to the lab. After characterization of the isolated cells using flowcytometry and multilineage differentiation capacity, the obtained Mesenchymal Stem Cells were cultured in DMEM/F12 supplemented with 2% FBS and 10μM of 5-azacytidine to induce myogenic differentiation. Real-time PCR and immunocytochemistry were used to assess the myogenic properties of the cells. RESULTS Our data showed that C-MSCs and UCB-MSCs were spindle shape in morphology. They were positive for CD90, CD73 and CD44 antigens, and negative for hematopoietic markers. They also differentiated into osteoblast and adipoblast lineages. Real-time PCR results showed that the cells could express MyoD, desmin and α-MHC at the end of the first week (P<0.05). No significant upregulation was detected in the expression of GATA-4 in both groups. Immunocytochemical staining revealed the expression of Desmin, cTnT and α-MHC. CONCLUSIONS Results showed that these cells are potent to differentiate into myoblast- like cells. An upregulation in the expression of some myogenic markers (desmin, α- MHC) was observed in C-MSCs in comparison with UCB-MSCs.
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Affiliation(s)
- Nikoo Bana
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Davood Sanooghi
- Department of Genetics, Faculty of Biological Sciences, Shahid Beheshti University, Tehran, Iran
| | - Mansoureh Soleimani
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran; Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Nasim Hayati Roodbari
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | | | - Mohammad Taghi Joghataei
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran; Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, Iran; Department of Neuroscience, School of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Forough Azam Sayahpour
- Department of Stem Cells and Developmental Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Faezeh Faghihi
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran.
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Velentzas AD, Velentzas PD, Katarachia S, Mpakou VE, Papassideri IS, Stravopodis DJ. Data of sperm-entry inability in Drosophila melanogaster ovarian follicles that are depleted of s36 chorionic protein. Data Brief 2017; 12:180-183. [PMID: 28443296 PMCID: PMC5394213 DOI: 10.1016/j.dib.2017.03.052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 03/20/2017] [Accepted: 03/31/2017] [Indexed: 11/18/2022] Open
Abstract
This paper presents data associated with the research article entitled “Targeted downregulation of s36 protein unearths its cardinal role in chorion biogenesis and architecture during Drosophila melanogaster oogenesis” [1]. Drosophila chorion is produced by epithelial follicle cells and one of its functional serving role is egg fertilization through the micropyle, a specialized narrow channel at the anterior tip of the egg [2]. Sperm entry during fertilization is necessary for the egg to complete meiosis [3]. D. melanogaster flies being characterized by severe downregulation of the s36 chorionic protein, specifically in the follicle-cell compartment of their ovary, appear with impaired fly fertility (Velentzas et al., 2016) [1]. In an effort to further investigate whether the observed infertility in the s36-targeted flies derives from a fertilization failure, such as the inability of sperm to pass through egg׳s micropyle, we mated females carrying s36-depleted ovaries with males expressing the GFP protein either in their sperm tails, or in both their sperm tails and sperm heads.
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Affiliation(s)
- Athanassios D Velentzas
- Section of Cell Biology and Biophysics, Department of Biology, School of Science, National and Kapodistrian University of Athens (NKUA), Athens, Greece
| | - Panagiotis D Velentzas
- Section of Cell Biology and Biophysics, Department of Biology, School of Science, National and Kapodistrian University of Athens (NKUA), Athens, Greece
| | - Stamatia Katarachia
- Section of Cell Biology and Biophysics, Department of Biology, School of Science, National and Kapodistrian University of Athens (NKUA), Athens, Greece
| | - Vassiliki E Mpakou
- Section of Cell Biology and Biophysics, Department of Biology, School of Science, National and Kapodistrian University of Athens (NKUA), Athens, Greece
| | - Issidora S Papassideri
- Section of Cell Biology and Biophysics, Department of Biology, School of Science, National and Kapodistrian University of Athens (NKUA), Athens, Greece
| | - Dimitrios J Stravopodis
- Section of Cell Biology and Biophysics, Department of Biology, School of Science, National and Kapodistrian University of Athens (NKUA), Athens, Greece
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Pelka KE, Henn K, Keck A, Sapel B, Braunbeck T. Size does matter - Determination of the critical molecular size for the uptake of chemicals across the chorion of zebrafish (Danio rerio) embryos. Aquat Toxicol 2017; 185:1-10. [PMID: 28142078 DOI: 10.1016/j.aquatox.2016.12.015] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Revised: 11/19/2016] [Accepted: 12/16/2016] [Indexed: 06/06/2023]
Abstract
In order to identify the upper limits of the molecular size of chemicals to cross the chorion of zebrafish, Danio rerio, differently sized, non-toxic and chemically inert polyethylene glycols (PEGs; 2000-12,000Da) were applied at concentrations (9.76mM) high enough to provoke osmotic pressure. Whereas small PEGs were expected to be able to cross the chorion, restricted uptake of large PEGs was hypothesized to result in shrinkage of the chorion. Due to a slow, but gradual uptake of PEGs over time, molecular size-dependent equilibration in conjunction with a regain of the spherical chorion shape was observed. Thus, the size of molecules able to cross the chorion could be narrowed down precisely to ≤4000Da, and the time-dependency of the movement across the chorion could be described. To account for associated alterations in embryonic development, fish embryo toxicity tests (FETs) according to OECD test guideline 236 (OECD, 2013) were performed with special emphasis to changes in chorion shape. FETs revealed clear-cut size-effects: the higher the actual molecular weight (=size) of the PEG, the more effects (both acutely toxic and sublethal) were found. No effects were seen with PEGs of 2000 and 3000Da. In contrast, PEG 8000 and PEG 12,000 were found to be most toxic with LC50 values of 16.05 and 16.40g/L, respectively. Likewise, the extent of chorion shrinkage due to increased osmotic pressure strictly depended on PEG molecular weight and duration of exposure. A reflux of water and PEG molecules into the chorion and a resulting re-shaping of the chorion could only be observed for eggs exposed to PEGs ≤4000Da. Results clearly indicate a barrier function of the zebrafish chorion for molecules larger than 3000 to 4,000Da.
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Affiliation(s)
- Katharina E Pelka
- Aquatic Ecology and Toxicology, Centre for Organismal Studies (COS), Im Neuenheimer Feld 504, University Heidelberg, Germany
| | - Kirsten Henn
- Aquatic Ecology and Toxicology, Centre for Organismal Studies (COS), Im Neuenheimer Feld 504, University Heidelberg, Germany
| | - Andreas Keck
- Aquatic Ecology and Toxicology, Centre for Organismal Studies (COS), Im Neuenheimer Feld 504, University Heidelberg, Germany
| | - Benjamin Sapel
- Aquatic Ecology and Toxicology, Centre for Organismal Studies (COS), Im Neuenheimer Feld 504, University Heidelberg, Germany
| | - Thomas Braunbeck
- Aquatic Ecology and Toxicology, Centre for Organismal Studies (COS), Im Neuenheimer Feld 504, University Heidelberg, Germany.
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Muench MO, Kapidzic M, Gormley M, Gutierrez AG, Ponder KL, Fomin ME, Beyer AI, Stolp H, Qi Z, Fisher SJ, Bárcena A. The human chorion contains definitive hematopoietic stem cells from the fifteenth week of gestation. Development 2017; 144:1399-1411. [PMID: 28255007 DOI: 10.1242/dev.138438] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 02/20/2017] [Indexed: 01/01/2023]
Abstract
We examined the contribution of the fetal membranes, amnion and chorion, to human embryonic and fetal hematopoiesis. A population of cells displaying a hematopoietic progenitor phenotype (CD34++ CD45low) of fetal origin was present in the chorion at all gestational ages, associated with stromal cells or near blood vessels, but was absent in the amnion. Prior to 15 weeks of gestation, these cells lacked hematopoietic in vivo engraftment potential. Differences in the chemokine receptor and β1 integrin expression profiles of progenitors between the first and second trimesters suggest that these cells had gestationally regulated responses to homing signals and/or adhesion mechanisms that influenced their ability to colonize the stem cell niche. Definitive hematopoietic stem cells, capable of multilineage and long-term reconstitution when transplanted in immunodeficient mice, were present in the chorion from 15-24 weeks gestation, but were absent at term. The second trimester cells also engrafted secondary recipients in serial transplantation experiments. Thus, the human chorion contains functionally mature hematopoietic stem cells at mid-gestation.
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Affiliation(s)
- Marcus O Muench
- Blood Systems Research Institute, San Francisco, CA 94118, USA.,Department of Laboratory Medicine, University of California, San Francisco, CA 94143, USA
| | - Mirhan Kapidzic
- The Ely and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA 94143, USA.,Center of Reproductive Sciences, Department of Obstetrics, Gynecology & Reproductive Sciences, University of California, San Francisco, CA 94143, USA
| | - Matthew Gormley
- The Ely and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA 94143, USA.,Center of Reproductive Sciences, Department of Obstetrics, Gynecology & Reproductive Sciences, University of California, San Francisco, CA 94143, USA
| | - Alan G Gutierrez
- The Ely and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA 94143, USA.,Center of Reproductive Sciences, Department of Obstetrics, Gynecology & Reproductive Sciences, University of California, San Francisco, CA 94143, USA
| | - Kathryn L Ponder
- The Ely and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA 94143, USA.,Department of Pediatrics, University of California, San Francisco, CA 94143, USA
| | - Marina E Fomin
- Blood Systems Research Institute, San Francisco, CA 94118, USA
| | - Ashley I Beyer
- Blood Systems Research Institute, San Francisco, CA 94118, USA
| | - Haley Stolp
- The Ely and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA 94143, USA.,Center of Reproductive Sciences, Department of Obstetrics, Gynecology & Reproductive Sciences, University of California, San Francisco, CA 94143, USA
| | - Zhongxia Qi
- Department of Laboratory Medicine, Clinical Cytogenetics Laboratory, University of California, San Francisco, CA 94107, USA
| | - Susan J Fisher
- The Ely and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA 94143, USA.,Center of Reproductive Sciences, Department of Obstetrics, Gynecology & Reproductive Sciences, University of California, San Francisco, CA 94143, USA
| | - Alicia Bárcena
- The Ely and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA 94143, USA .,Center of Reproductive Sciences, Department of Obstetrics, Gynecology & Reproductive Sciences, University of California, San Francisco, CA 94143, USA
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47
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Wells MW, Turko AJ, Wright PA. Fish embryos on land: terrestrial embryo deposition lowers oxygen uptake without altering growth or survival in the amphibious fish Kryptolebias marmoratus. ACTA ACUST UNITED AC 2017; 218:3249-56. [PMID: 26491194 DOI: 10.1242/jeb.127399] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Few teleost fishes incubate embryos out of water, but the oxygen-rich terrestrial environment could provide advantages for early growth and development. We tested the hypothesis that embryonic oxygen uptake is limited in aquatic environments relative to air using the self-fertilizing amphibious mangrove rivulus, Kryptolebias marmoratus, which typically inhabits hypoxic, water-filled crab burrows. We found that adult mangrove rivulus released twice as many embryos in terrestrial versus aquatic environments and that air-reared embryos had accelerated developmental rates. Surprisingly, air-reared embryos consumed 44% less oxygen and possessed larger yolk reserves, but attained the same mass, length and chorion thickness. Water-reared embryos moved their opercula ∼2.5 more times per minute compared with air-reared embryos at 7 days post-release, which probably contributed to the higher rates of oxygen uptake and yolk utilization we observed. Genetically identical air- and water-reared embryos from the same parent were raised to maturity, but the embryonic environment did not affect growth, reproduction or emersion ability in adults. Therefore, although aspects of early development were plastic, these early differences were not sustained into adulthood. Kryptolebias marmoratus embryos hatched out of water when exposed to aerial hypoxia. We conclude that exposure to a terrestrial environment reduces the energetic costs of development partly by reducing the necessity of embryonic movements to dispel stagnant boundary layers. Terrestrial incubation of young would be especially beneficial to amphibious fishes that occupy aquatic habitats of poor water quality, assuming low terrestrial predation and desiccation risks.
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Affiliation(s)
- Michael W Wells
- Department of Integrative Biology, University of Guelph, 488 Gordon Street, Guelph, ON, Canada N1G 2W1
| | - Andy J Turko
- Department of Integrative Biology, University of Guelph, 488 Gordon Street, Guelph, ON, Canada N1G 2W1
| | - Patricia A Wright
- Department of Integrative Biology, University of Guelph, 488 Gordon Street, Guelph, ON, Canada N1G 2W1
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48
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Nunes V, Cross J, Speich JE, Morgan DR, Strauss JF, Ramus RM. Fetal membrane imaging and the prediction of preterm birth: a systematic review, current issues, and future directions. BMC Pregnancy Childbirth 2016; 16:387. [PMID: 27938341 PMCID: PMC5148829 DOI: 10.1186/s12884-016-1176-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 12/01/2016] [Indexed: 01/08/2023] Open
Abstract
Background Preterm premature rupture of membranes (PPROM) is the largest identifiable cause of preterm birth. There is currently no good screening test for PPROM in low-risk asymptomatic patients. Our goal was to identify how imaging methods can be utilized for examining the risks for PPROM in asymptomatic patients. Methods This paper is a systematic review of the literature on fetal membrane thickness and its use for the prediction of PPROM. Four key studies are identified and reviewed; two in vitro studies and two in vivo ultrasound studies each using differing methodologies. Additionally reviewed is a study using Optical Coherence Tomography, an emerging technique using near-infrared technology to produce high-resolution images. Results There is currently insufficient data to determine the association between fetal membrane thickness and PPROM by ultrasound. Conclusions Fetal membrane thickness could have relevant clinical ramifications for the prediction of PPROM. Suggested improvements in study methodology and design will lead to progress in this area of research, as well as the use of newer technologies. Larger sample sizes, histological comparison, uniform methodologies for data collection, longitudinal study design and expanding data analysis beyond fetal membrane thickness to other properties would expand our knowledge in this field. In addition, transvaginal ultrasound should be utilized to improve resolution, as well as emerging methodologies such as MRI fusion imaging using ultrasound and Shear Wave Elastography.
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Affiliation(s)
- Vanessa Nunes
- Department of Obstetrics & Gynecology, Virginia Commonwealth University, Richmond, VA, USA
| | - Jennifer Cross
- Department of Obstetrics & Gynecology, Virginia Commonwealth University, Richmond, VA, USA
| | - John E Speich
- Department of Mechanical and Nuclear Engineering, School of Engineering, Virginia Commonwealth University, Richmond, VA, USA
| | - Danielle R Morgan
- Department of Obstetrics & Gynecology, Virginia Commonwealth University, Richmond, VA, USA
| | - Jerome F Strauss
- Department of Obstetrics & Gynecology, Virginia Commonwealth University, Richmond, VA, USA
| | - Ronald M Ramus
- Department of Obstetrics & Gynecology, Virginia Commonwealth University, Richmond, VA, USA.
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Kil K, Choi MY, Kong JS, Kim WJ, Park KH. Regenerative efficacy of mesenchymal stromal cells from human placenta in sensorineural hearing loss. Int J Pediatr Otorhinolaryngol 2016; 91:72-81. [PMID: 27863646 DOI: 10.1016/j.ijporl.2016.10.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 10/07/2016] [Accepted: 10/09/2016] [Indexed: 01/08/2023]
Abstract
INTRODUCTION Hearing loss is a common chronic disorder characterized by decline of auditory function. The global population have suffered from deafness and the transplantation of stem cells is regarded as a therapeutic strategy for this disease. METHODS We collected placenta from a total of 13 samples of full term pregnant women and isolated MSCs derived from human placenta and transplanted MSCs on deaf animal model. The normal group and the sensorineural hearing loss (SNHL) group and the experimental (transplanted MSCs) group were compared and estimated hearing level using auditory brainstem response (ABR) recordings and the otoacoustic emission (OAE) test. RESULTS ABR threshold value and DPOAE level showed that MSCs transplantation groups was improved than the SNHL group. And the number of spiral ganglion neurons were increased in all turn of the cochlea. And there was no evidence of acute immunological rejection and inflammation response was not observed. DISCUSSION This study is to evaluate regenerative efficacy of hearing loss by transplanting mesenchymal stromal cells (MSCs) derived from human placenta (amnion and chorion) in deaf animal model. We identified that MSCs transplantation restored auditory impairment and promoted cell regeneration. We hope to overcome sensorineural hearing loss by transplanting stem cells such as mesenchymal stromal cells (MSCs) from easily accessible adult stem cell source in placenta.
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Affiliation(s)
- Kicheol Kil
- Department of Obstetrics and Gynecology, Seoul St. Mary's Hospital, The Catholic University of Korea School of Medicine, Seoul, South Korea
| | - Mi Young Choi
- Department of Medical Cell Biology, The Catholic University of Korea School of Medicine, Seoul, South Korea; Department of Otolaryngology-Head & Neck Surgery, Seoul St. Mary's Hospital, The Catholic University of Korea School of Medicine, Seoul, South Korea
| | - Ji Sun Kong
- Department of Otolaryngology-Head & Neck Surgery, Seoul St. Mary's Hospital, The Catholic University of Korea School of Medicine, Seoul, South Korea
| | - Woo Jin Kim
- Department of Otolaryngology-Head & Neck Surgery, Seoul St. Mary's Hospital, The Catholic University of Korea School of Medicine, Seoul, South Korea
| | - Kyoung Ho Park
- Department of Otolaryngology-Head & Neck Surgery, Seoul St. Mary's Hospital, The Catholic University of Korea School of Medicine, Seoul, South Korea.
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Kreß A, Kuch U, Oehlmann J, Müller R. Effects of diapause and cold acclimation on egg ultrastructure: new insights into the cold hardiness mechanisms of the Asian tiger mosquito Aedes (Stegomyia) albopictus. J Vector Ecol 2016; 41:142-150. [PMID: 27232137 DOI: 10.1111/jvec.12206] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Accepted: 02/27/2016] [Indexed: 06/05/2023]
Abstract
The Asian tiger mosquito, Aedes albopictus (Diptera: Culicidae, SKUSE), is an important threat to public health due to its rapid spread and its potential as a vector. The eggs of Ae. albopictus are the most cold resistant life stage and thus, the cold hardiness of eggs is used to predict the future occurrence of the species in distribution models. However, the mechanism of cold hardiness has yet to be revealed. To address this question, we analyzed the layers of diapausing and cold acclimatized eggs of a temperate population of Ae. albopictus in a full factorial test design using transmission electron microscopy. We reviewed the hypotheses that a thickened wax layer or chorion is the cause of cold hardiness but found no evidence. As a result of the induced diapause, the thickness of the dark endochorion as a layer of high electron density and thus an assumed location for waxes was decreasing. We therefore hypothesized a qualitative alteration of the wax layer due to compaction. Cold acclimation was causing an increase in the thickness of the middle serosa cuticle indicating a detachment of serosa membrane from the endochorion as a potential adaptation strategy to isolate inoculating ice formations in the inter-membranous space.
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Affiliation(s)
- Aljoscha Kreß
- Senckenberg Biodiversity and Climate Research Centre (BiKF), Department Climate and Adaptation, Senckenberganlage 25, 60325 Frankfurt am Main, Germany.
- Goethe University Frankfurt am Main, Department Aquatic Ecotoxicology, Max-von-Laue-Str. 13, 60438 Frankfurt am Main, Germany.
| | - Ulrich Kuch
- Goethe University Frankfurt am Main, Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Jörg Oehlmann
- Senckenberg Biodiversity and Climate Research Centre (BiKF), Department Climate and Adaptation, Senckenberganlage 25, 60325 Frankfurt am Main, Germany
- Goethe University Frankfurt am Main, Department Aquatic Ecotoxicology, Max-von-Laue-Str. 13, 60438 Frankfurt am Main, Germany
| | - Ruth Müller
- Goethe University Frankfurt am Main, Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
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