1
|
Nishiura H, Imasaka M, Yamanegi K, Fujimoto J, Ohmuraya M. Immune Aging and How It Works for Inflammation and Fibrosis. Front Physiol 2022; 12:795508. [PMID: 35058804 PMCID: PMC8764285 DOI: 10.3389/fphys.2021.795508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 12/08/2021] [Indexed: 12/02/2022] Open
Abstract
Almost all mature cells that undergo apoptosis in an age-dependent or an accidental manner are completely recovered in tissue-specific microenvironments without any physiological changes. After peripheral blood leukocytes are released into the local region, fibroblast cells and new blood vessels commonly proliferate during wound healing. Inducible repair tools mainly supplied from blood vessels are cleared by peripheral blood phagocytic macrophages. Finally, hematopoietic stem cell (HSC)-derived precursor cells migrate from bone marrow (BM) to the microenvironment to rebuild damaged tissues (the mature immune system). In contrast to the mature immune system, the effects of aging on HSCs (long-term HSCs) and peripheral blood lymphocytes (long-term PBLs) are not clearly understood in the BM and thymus niches with tissue-specific microenvironments with some physiological changes (the aged BM niche) for incomplete rebuilding of damaged tissues (the aged immune system). In this review, the roles of the aged immune system in both a delay of acute inflammation and the development of chronic inflammation or fibrosis are discussed.
Collapse
Affiliation(s)
- Hiroshi Nishiura
- Department of Pathology, Hyogo College of Medicine, Nishinomiya, Japan
| | - Mai Imasaka
- Department of Genetics, Hyogo College of Medicine, Nishinomiya, Japan
| | - Koji Yamanegi
- Department of Pathology, Hyogo College of Medicine, Nishinomiya, Japan
| | - Jiro Fujimoto
- Department of Surgery, Hyogo College of Medicine, Nishinomiya, Japan
| | - Masaki Ohmuraya
- Department of Genetics, Hyogo College of Medicine, Nishinomiya, Japan
| |
Collapse
|
2
|
Hermi F, Gómez-Abellán V, Pérez-Oliva AB, García-Moreno D, López-Muñoz A, Sarropoulou E, Arizcun M, Ridha O, Mulero V, Sepulcre MP. The molecular, functional and phylogenetic characterization of PGE 2 receptors reveals their different roles in the immune response of the teleost fish gilthead seabream (Sparus aurata L.). DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2021; 114:103803. [PMID: 32738336 DOI: 10.1016/j.dci.2020.103803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 07/14/2020] [Accepted: 07/14/2020] [Indexed: 06/11/2023]
Abstract
Prostaglandin E2 (PGE2) plays an important role in immune activities in teleost fish, including seabream. However, receptors involved in PGE2 signaling, as well as the pathways activated downstream, are largely unknown. In this study, one ortholog of mammalian PTGER1, PTGER3 and PTGER4, and two of PTGER2 (Ptger2a and Ptger2b) were identified and characterized in gilthead seabream. In silico analysis showed that all these receptors possessed the organization domain of G protein-coupled receptors, with the exception of Ptger2b. The corresponding in vivo studies revealed that they were expressed in all the tissues examined, the highest mRNA levels of ptger1 and ptger3 being observed in the spleen and of ptger2a and ptger4 in the blood. Bacterial infection induced higher mRNA levels of ptger2a, ptger3 and ptger4 in peritoneal exudate (the site of bacterial injection). In addition, head kidney acidophilic granulocytes and macrophages displayed different ptger1, ptger2a, ptger3 and ptger4 expression profiles. Furthermore, in macrophages the expression of the receptors was weakly affected by stimulation with bacterial DNA or with PGE2, while in acidophilic granulocytes stimulation resulted in the upregulation of ptger2a and ptger4. Taken together, these results suggest different roles for seabream PGE2 receptors in the regulation of the immune responses.
Collapse
Affiliation(s)
- Fatma Hermi
- Unit of Immunology, Environmental Microbiology and Cancerology, Faculty of Sciences of Bizerte, Jarzouna - Bizerte, 7021, University of Carthage, Tunis, Tunisia; Departamento de Biología Celular e Histología, Facultad de Biología, Universidad de Murcia, IMIB-Arrixaca, 30100, Murcia, Spain
| | - Victoria Gómez-Abellán
- Departamento de Biología Celular e Histología, Facultad de Biología, Universidad de Murcia, IMIB-Arrixaca, 30100, Murcia, Spain
| | - Ana B Pérez-Oliva
- Departamento de Biología Celular e Histología, Facultad de Biología, Universidad de Murcia, IMIB-Arrixaca, 30100, Murcia, Spain
| | - Diana García-Moreno
- Departamento de Biología Celular e Histología, Facultad de Biología, Universidad de Murcia, IMIB-Arrixaca, 30100, Murcia, Spain
| | - Azucena López-Muñoz
- Departamento de Biología Celular e Histología, Facultad de Biología, Universidad de Murcia, IMIB-Arrixaca, 30100, Murcia, Spain
| | - Elena Sarropoulou
- Institute for Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research, 71003, Heraklion, Crete, Greece
| | - Marta Arizcun
- Centro Oceanográfico de Murcia, Instituto Español de Oceanografía (IEO), 30860, Murcia, Spain
| | - Oueslati Ridha
- Unit of Immunology, Environmental Microbiology and Cancerology, Faculty of Sciences of Bizerte, Jarzouna - Bizerte, 7021, University of Carthage, Tunis, Tunisia
| | - Victoriano Mulero
- Departamento de Biología Celular e Histología, Facultad de Biología, Universidad de Murcia, IMIB-Arrixaca, 30100, Murcia, Spain
| | - María P Sepulcre
- Departamento de Biología Celular e Histología, Facultad de Biología, Universidad de Murcia, IMIB-Arrixaca, 30100, Murcia, Spain.
| |
Collapse
|
3
|
Maseda D, Ricciotti E, Crofford LJ. Prostaglandin regulation of T cell biology. Pharmacol Res 2019; 149:104456. [PMID: 31553935 DOI: 10.1016/j.phrs.2019.104456] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 08/06/2019] [Accepted: 09/13/2019] [Indexed: 12/26/2022]
Abstract
Prostaglandins (PG) are pleiotropic bioactive lipids involved in the control of many physiological processes, including key roles in regulating inflammation. This links PG to the modulation of the quality and magnitude of immune responses. T cells, as a core part of the immune system, respond readily to inflammatory cues from their environment, and express a diverse array of PG receptors that contribute to their function and phenotype. Here we put in context our knowledge about how PG affect T cell biology, and review advances that bring light into how specific T cell functions that have been newly discovered are modulated through PG. We will also comment on drugs that target PG metabolism and sensing, their effect on T cell function during disease, and we will finally discuss how we can design new approaches that modulate PG in order to maximize desired therapeutic T cell effects.
Collapse
Affiliation(s)
- Damian Maseda
- Department of Microbiology, University of Pennsylvania School of Medicine, 8-138 Smillow Center for Translational Research, Philadelphia, PA, USA.
| | - Emanuela Ricciotti
- Department of Systems Pharmacology and Translational Therapeutics, Institute for Translational Medicine and Therapeutics, University of Pennsylvania, Philadelphia, PA, USA
| | - Leslie J Crofford
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA
| |
Collapse
|
4
|
Zhang B, He L, Liu Y, Zhang J, Zeng Q, Wang S, Fan Z, Fang F, Chen L, Lv Y, Xi J, Yue W, Li Y, Pei X. Prostaglandin E 2 Is Required for BMP4-Induced Mesoderm Differentiation of Human Embryonic Stem Cells. Stem Cell Reports 2018; 10:905-919. [PMID: 29478896 PMCID: PMC5919771 DOI: 10.1016/j.stemcr.2018.01.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 01/20/2018] [Accepted: 01/22/2018] [Indexed: 01/05/2023] Open
Abstract
The accurate control of early cell fate specification during differentiation of human embryonic stem cells (hESCs) is critical for acquiring pure therapeutic cell populations of interest. Bone morphogenetic protein 4 (BMP4) is a key mesoderm inducer from ESCs. However, the molecular mechanism of the mesodermal cell fate decision induced by BMP4 remains unclear. Here, we demonstrate the requirement of a bioactive lipid, prostaglandin E2 (PGE2), for the mesoderm specification from hESCs by BMP4 induction. We show that BMP4 directly regulates the expression of the key enzyme for PGE2 synthesis, COX-1, and promotes PGE2 production. More importantly, in the absence of BMP4, forced COX-1 expression or PGE2 treatment is sufficient to initiate mesoderm specification of hESCs by activation of EP2-PKA signaling and modulation of nuclear translocation of β-catenin. Together, our findings provide insights into the critical role of BMP regulation of PGE2 synthesis and its downstream signaling in initiating mesoderm commitment of hESCs. COX-1 and PGE2 played pivotal roles in the mesoderm specification of hESCs Specific inhibition of COX-1 suppressed mesoderm differentiation of hESCs BMP4 directly upregulated the transcription of the COX-1 PGE2 stimulated differentiation mainly via the EP2-PKA-GSK3β/β-catenin signaling pathway
Collapse
Affiliation(s)
- Bowen Zhang
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, Beijing 100850, China; South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou 510005, China
| | - Lijuan He
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, Beijing 100850, China; South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou 510005, China
| | - Yiming Liu
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, Beijing 100850, China; South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou 510005, China
| | - Jing Zhang
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, Beijing 100850, China; South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou 510005, China
| | - Quan Zeng
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, Beijing 100850, China; South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou 510005, China
| | - Sihan Wang
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, Beijing 100850, China; South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou 510005, China
| | - Zeng Fan
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, Beijing 100850, China; South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou 510005, China
| | - Fang Fang
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, Beijing 100850, China; South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou 510005, China
| | - Lin Chen
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, Beijing 100850, China; South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou 510005, China
| | - Yang Lv
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, Beijing 100850, China; South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou 510005, China
| | - Jiafei Xi
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, Beijing 100850, China; South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou 510005, China
| | - Wen Yue
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, Beijing 100850, China; South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou 510005, China
| | - Yanhua Li
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, Beijing 100850, China; South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou 510005, China.
| | - Xuetao Pei
- Stem Cell and Regenerative Medicine Lab, Beijing Institute of Transfusion Medicine, Beijing 100850, China; South China Research Center for Stem Cell & Regenerative Medicine, SCIB, Guangzhou 510005, China.
| |
Collapse
|
5
|
Takahashi T, Hagiwara A, Ogiwara K. Prostaglandins in teleost ovulation: A review of the roles with a view to comparison with prostaglandins in mammalian ovulation. Mol Cell Endocrinol 2018; 461:236-247. [PMID: 28919301 DOI: 10.1016/j.mce.2017.09.019] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 09/01/2017] [Accepted: 09/13/2017] [Indexed: 12/20/2022]
Abstract
Prostaglandins are well known to be central regulators of vertebrate ovulation. Studies addressing the role of prostaglandins in mammalian ovulation have established that they are involved in the processes of oocyte maturation and cumulus oocyte complex expansion. In contrast, despite the first indication of the role of prostaglandins in teleost ovulation appearing 40 years ago, the mechanistic background of their role has long been unknown. However, studies conducted on medaka over the past decade have provided valuable information. Emerging evidence indicates an indispensable role of prostaglandin E2 and its receptor subtype Ptger4b in the process of follicle rupture. In this review, we summarize studies addressing the role of prostaglandins in teleost ovulation and describe recent advances. To help understand differences from and similarities to ovulation in mammalian species, the findings on the roles of prostaglandins in mammalian ovulation are discussed in parallel.
Collapse
Affiliation(s)
- Takayuki Takahashi
- Laboratory of Reproductive and Developmental Biology, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan.
| | - Akane Hagiwara
- Laboratory of Reproductive and Developmental Biology, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Katsueki Ogiwara
- Laboratory of Reproductive and Developmental Biology, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
| |
Collapse
|
6
|
|
7
|
Lysophospholipid acyltransferases and eicosanoid biosynthesis in zebrafish myeloid cells. Prostaglandins Other Lipid Mediat 2014; 113-115:52-61. [PMID: 25175316 DOI: 10.1016/j.prostaglandins.2014.08.003] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 08/05/2014] [Accepted: 08/19/2014] [Indexed: 12/21/2022]
Abstract
Eicosanoids derived from the enzymatic oxidation of arachidonic acid play important roles in a large number of physiological and pathological processes in humans. Many animal and cellular models have been used to investigate the intricate mechanisms regulating their biosynthesis and actions. Zebrafish is a widely used model to study the embryonic development of vertebrates. It expresses homologs of the key enzymes involved in eicosanoid production, and eicosanoids have been detected in extracts from adult or embryonic fish. In this study we prepared cell suspensions from kidney marrow, the main hematopoietic organ in fish. Upon stimulation with calcium ionophore, these cells produced eicosanoids including PGE2, LTB4, 5-HETE and, most abundantly, 12-HETE. They also produced small amounts of LTB5 derived from eicosapentaenoic acid. These eicosanoids were also produced in kidney marrow cells stimulated with ATP, and this production was greatly enhanced by preincubation with thimerosal, an inhibitor of arachidonate reacylation into phospholipids. Microsomes from these cells exhibited acyltransferase activities consistent with expression of MBOAT5/LPCAT3 and MBOAT7/LPIAT1, the main arachidonoyl-CoA:lysophospholipid acyltransferases. In summary, this work introduces a new cellular model to study the regulation of eicosanoid production through a phospholipid deacylation-reacylation cycle from a well-established, versatile vertebrate model species.
Collapse
|
8
|
Developmental hematopoiesis: ontogeny, genetic programming and conservation. Exp Hematol 2014; 42:669-83. [PMID: 24950425 DOI: 10.1016/j.exphem.2014.06.001] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 05/15/2014] [Accepted: 06/09/2014] [Indexed: 02/01/2023]
Abstract
Hematopoietic stem cells (HSCs) sustain blood production throughout life and are of pivotal importance in regenerative medicine. Although HSC generation from pluripotent stem cells would resolve their shortage for clinical applications, this has not yet been achieved mainly because of the poor mechanistic understanding of their programming. Bone marrow HSCs are first created during embryogenesis in the dorsal aorta (DA) of the midgestation conceptus, from where they migrate to the fetal liver and, eventually, the bone marrow. It is currently accepted that HSCs emerge from specialized endothelium, the hemogenic endothelium, localized in the ventral wall of the DA through an evolutionarily conserved process called the endothelial-to-hematopoietic transition. However, the endothelial-to-hematopoietic transition represents one of the last steps in HSC creation, and an understanding of earlier events in the specification of their progenitors is required if we are to create them from naïve pluripotent cells. Because of their ready availability and external development, zebrafish and Xenopus embryos have enormously facilitated our understanding of the early developmental processes leading to the programming of HSCs from nascent lateral plate mesoderm to hemogenic endothelium in the DA. The amenity of the Xenopus model to lineage tracing experiments has also contributed to the establishment of the distinct origins of embryonic (yolk sac) and adult (HSC) hematopoiesis, whereas the transparency of the zebrafish has allowed in vivo imaging of developing blood cells, particularly during and after the emergence of HSCs in the DA. Here, we discuss the key contributions of these model organisms to our understanding of developmental hematopoiesis.
Collapse
|
9
|
Iwanami N. Zebrafish as a model for understanding the evolution of the vertebrate immune system and human primary immunodeficiency. Exp Hematol 2014; 42:697-706. [PMID: 24824573 DOI: 10.1016/j.exphem.2014.05.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 04/21/2014] [Accepted: 05/02/2014] [Indexed: 01/04/2023]
Abstract
Zebrafish is an important vertebrate model that provides the opportunity for the combination of genetic interrogation with advanced live imaging in the analysis of complex developmental and physiologic processes. Among the many advances that have been achieved using the zebrafish model, it has had a great impact on immunology. Here, I discuss recent work focusing on the genetic underpinnings of the development and function of lymphocytes in fish. Lymphocytes play critical roles in vertebrate-specific acquired immune systems of jawless and jawed fish. The unique opportunities afforded by the ability to carry out forward genetic screens and the rapidly evolving armamentarium of reverse genetics in fish usher in a new immunologic research that complements the traditional models of chicken and mouse. Recent work has greatly increased our understanding of the molecular components of the zebrafish immune system, identifying evolutionarily conserved and fish-specific functions of immune-related genes. Interestingly, some of the genes whose mutations underlie the phenotypes in immunodeficient zebrafish were also identified in immunodeficient human patients. In addition, because of the generally conserved structure and function of immune facilities, the zebrafish also provides a versatile model to examine the functional consequences of genetic variants in immune-relevant genes in the human population. Thus, I propose that genetic approaches using the zebrafish hold great potential for a better understanding of molecular mechanisms of human primary immunodeficiencies and the evolution of vertebrate immune systems.
Collapse
Affiliation(s)
- Norimasa Iwanami
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany.
| |
Collapse
|
10
|
Yokoyama U, Iwatsubo K, Umemura M, Fujita T, Ishikawa Y. The Prostanoid EP4 Receptor and Its Signaling Pathway. Pharmacol Rev 2013; 65:1010-52. [DOI: 10.1124/pr.112.007195] [Citation(s) in RCA: 183] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
|
11
|
Takahashi T, Fujimori C, Hagiwara A, Ogiwara K. Recent Advances in the Understanding of Teleost Medaka Ovulation: The Roles of Proteases and Prostaglandins. Zoolog Sci 2013; 30:239-47. [DOI: 10.2108/zsj.30.239] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
12
|
Prostaglandin E2 regulates murine hematopoietic stem/progenitor cells directly via EP4 receptor and indirectly through mesenchymal progenitor cells. Blood 2013; 121:1995-2007. [DOI: 10.1182/blood-2012-06-437889] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Key Points
PGE2 signaling positively regulates hematopoietic stem cells both directly and via activation of a nonhematopoietic cell population. EP4 is a major receptor for the PGE2-mediated regulation of hematopoietic stem and progenitor cells.
Collapse
|
13
|
Bhandari K, Venables B. Ibuprofen bioconcentration and prostaglandin E2 levels in the bluntnose minnow Pimephales notatus. Comp Biochem Physiol C Toxicol Pharmacol 2011; 153:251-7. [PMID: 21111061 DOI: 10.1016/j.cbpc.2010.11.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2010] [Revised: 11/15/2010] [Accepted: 11/16/2010] [Indexed: 11/23/2022]
Abstract
Prostanoids are oxygenated derivatives of arachidonic acid with a wide range of physiological effects in vertebrates including modulation of inflammation and innate immune responses. Nonsteroidal anti-inflammatory drugs (NSAIDs) act through inhibition of cyclooxygenase (COX) conversion of arachidonic acid to prostanoids. In order to better understand the potential of environmental NSAIDS for interruption of normal levels of COX products in fishes, we developed an LC/MS/MS-based approach for tissue analysis of 7 prostanoids. Initial studies examining muscle, gut and gill demonstrated that prostaglandin E2 (PGE2) was the most abundant of the measured prostanoids in all tissues and that gill tissue had the highest and most consistent concentrations of PGE2. After short-term 48-h laboratory exposures to nominal concentrations of 5, 25, 50 and 100μg/L ibuprofen, 50μg/L and 100μg/L exposure concentrations resulted in significant reduction of gill tissue PGE2 concentration by approximately 30% and 80% respectively. The lower exposures did not result in significant reductions when compared to unexposed controls. Measured tissue concentrations of ibuprofen indicated that this NSAID had little potential for bioconcentration (BCF=1.3) and the IC(50) of ibuprofen for inhibition of PGE2 production in gill tissue was estimated to be 0.4μM.
Collapse
Affiliation(s)
- Khageshor Bhandari
- Department of Biological Sciences, University of North Texas, 1704 West Mulberry, Denton, TX 76203, USA
| | | |
Collapse
|
14
|
Fujimori C, Ogiwara K, Hagiwara A, Rajapakse S, Kimura A, Takahashi T. Expression of cyclooxygenase-2 and prostaglandin receptor EP4b mRNA in the ovary of the medaka fish, Oryzias latipes: possible involvement in ovulation. Mol Cell Endocrinol 2011; 332:67-77. [PMID: 20932877 DOI: 10.1016/j.mce.2010.09.015] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2010] [Revised: 08/18/2010] [Accepted: 09/28/2010] [Indexed: 10/19/2022]
Abstract
In vitro ovulation of mature medaka ovarian follicles was inhibited by inhibitors of cyclooxygenase (COX) or by an antagonist of the prostaglandin E(2) receptor (EP). Of the three medaka COX genes, ptgs2 was most dominantly expressed in the fish ovary. The ptgs2 transcript was detected in all sizes of growing follicles. In a 24-h spawning cycle, large-sized follicles contained ptgs2 mRNA at a fairly constant level. The levels of COX enzyme activity and prostaglandin E(2) were also constant in the large-sized follicles during the spawning cycle. The expression of prostaglandin E(2) receptor EP4b (ptger4b) mRNA was drastically upregulated in the large-sized follicles as the ovulation time approached. The current results indicate that prostaglandin E(2), which might be produced by COX-2, is involved in the ovulation of medaka, and that EP4b is likely the receptor responsible for exerting the action of prostaglandin E(2) in the process.
Collapse
Affiliation(s)
- Chika Fujimori
- Laboratory of Reproductive and Developmental Biology, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | | | | | | | | | | |
Collapse
|
15
|
Goessling W, North TE. Hematopoietic stem cell development: using the zebrafish to identify the signaling networks and physical forces regulating hematopoiesis. Methods Cell Biol 2011; 105:117-36. [PMID: 21951528 DOI: 10.1016/b978-0-12-381320-6.00005-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Hematopoietic stem cells (HSC) form the basis of the hematopoietic hierarchy, giving rise to each of the blood lineages found throughout the lifetime of the organism. The genetic programs regulating HSC development are highly conserved between vertebrate species. The zebrafish has proven to be an excellent model for discovering and characterizing the signaling networks and physical forces regulating vertebrate hematopoietic development.
Collapse
Affiliation(s)
- Wolfram Goessling
- Genetics Division, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | | |
Collapse
|
16
|
Gallardo VE, Liang J, Behra M, Elkahloun A, Villablanca EJ, Russo V, Allende ML, Burgess SM. Molecular dissection of the migrating posterior lateral line primordium during early development in zebrafish. BMC DEVELOPMENTAL BIOLOGY 2010; 10:120. [PMID: 21144052 PMCID: PMC3016277 DOI: 10.1186/1471-213x-10-120] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2010] [Accepted: 12/13/2010] [Indexed: 01/24/2023]
Abstract
Background Development of the posterior lateral line (PLL) system in zebrafish involves cell migration, proliferation and differentiation of mechanosensory cells. The PLL forms when cranial placodal cells delaminate and become a coherent, migratory primordium that traverses the length of the fish to form this sensory system. As it migrates, the primordium deposits groups of cells called neuromasts, the specialized organs that contain the mechanosensory hair cells. Therefore the primordium provides both a model for studying collective directional cell migration and the differentiation of sensory cells from multipotent progenitor cells. Results Through the combined use of transgenic fish, Fluorescence Activated Cell Sorting and microarray analysis we identified a repertoire of key genes expressed in the migrating primordium and in differentiated neuromasts. We validated the specific expression in the primordium of a subset of the identified sequences by quantitative RT-PCR, and by in situ hybridization. We also show that interfering with the function of two genes, f11r and cd9b, defects in primordium migration are induced. Finally, pathway construction revealed functional relationships among the genes enriched in the migrating cell population. Conclusions Our results demonstrate that this is a robust approach to globally analyze tissue-specific expression and we predict that many of the genes identified in this study will show critical functions in developmental events involving collective cell migration and possibly in pathological situations such as tumor metastasis.
Collapse
Affiliation(s)
- Viviana E Gallardo
- Center for Genome Regulation. Facultad de Ciencias, Universidad de Chile, Casilla 653. Santiago, Chile
| | | | | | | | | | | | | | | |
Collapse
|
17
|
Lister AL, Van Der Kraak GJ. Regulation of prostaglandin synthesis in ovaries of sexually-mature zebrafish (Danio rerio). Mol Reprod Dev 2009; 76:1064-75. [DOI: 10.1002/mrd.21072] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
18
|
Hoggatt J, Singh P, Sampath J, Pelus LM. Prostaglandin E2 enhances hematopoietic stem cell homing, survival, and proliferation. Blood 2009; 113:5444-55. [PMID: 19324903 PMCID: PMC2689046 DOI: 10.1182/blood-2009-01-201335] [Citation(s) in RCA: 324] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2009] [Accepted: 03/18/2009] [Indexed: 12/25/2022] Open
Abstract
Adult hematopoietic stem cells (HSCs) are routinely used to reconstitute hematopoiesis after myeloablation; however, transplantation efficacy and multilineage reconstitution can be limited by inadequate HSC number, or poor homing, engraftment, or self-renewal. Here we report that mouse and human HSCs express prostaglandin E2 (PGE2) receptors, and that short-term ex vivo exposure of HSCs to PGE2 enhances their homing, survival, and proliferation, resulting in increased long-term repopulating cell (LTRC) and competitive repopulating unit (CRU) frequency. HSCs pulsed with PGE2 are more competitive, as determined by head-to-head comparison in a competitive transplantation model. Enhanced HSC frequency and competitive advantage is stable and maintained upon serial transplantation, with full multilineage reconstitution. PGE2 increases HSC CXCR4 mRNA and surface expression, enhances their migration to SDF-1 in vitro and homing to bone marrow in vivo, and stimulates HSC entry into and progression through cell cycle. In addition, PGE2 enhances HSC survival, associated with an increase in Survivin mRNA and protein expression and reduction in intracellular active caspase-3. Our results define novel mechanisms of action whereby PGE2 enhances HSC function and supports a strategy to use PGE2 to facilitate hematopoietic transplantation.
Collapse
Affiliation(s)
- Jonathan Hoggatt
- Department of Microbiology and Immunology and the Walther Oncology Center, Indiana University School of Medicine (IUSM), Indianapolis, IN 46202, USA
| | | | | | | |
Collapse
|
19
|
Lister AL, Van Der Kraak G. An investigation into the role of prostaglandins in zebrafish oocyte maturation and ovulation. Gen Comp Endocrinol 2008; 159:46-57. [PMID: 18722378 DOI: 10.1016/j.ygcen.2008.07.017] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2008] [Revised: 07/25/2008] [Accepted: 07/28/2008] [Indexed: 10/21/2022]
Abstract
This study explored the potential for ovarian-derived prostaglandins (PGs) to be involved in the regulation of oocyte maturation and ovulation in zebrafish. It was demonstrated that cultured vitellogenic follicles have the capacity to produce prostaglandin E(2) (PGE(2)) and PGF(2alpha) in response to arachidonic acid (AA) in a concentration-dependent manner, and that AA stimulates the in vitro production of 17beta-estradiol (E(2)). The production of AA-stimulated PGF(2alpha) was significantly reduced by treatment with the non-selective cyclooxygenase (COX) inhibitor, indomethacin (INDO). Treatment of full-grown follicles with AA did not induce oocyte maturation as assessed by germinal vesicle breakdown, but INDO significantly decreased the rate of spontaneous maturation. Using Real-Time PCR, it was shown that follicles of different developmental size classes (primary growth and pre-vitellogenic, early-vitellogenic, and mid- to full-grown vitellogenic) express enzymes that release (cytosolic phospholipase A(2) (cPLA(2)); phospholipase Cgamma1) or metabolize (COX-1, COX-2, and prostaglandin synthase-2) AA to PG metabolites. The expression of cPLA(2) was found to be significantly greater in full-grown follicles compared to follicles of the pre- and early-vitellogenic stages. In vivo studies demonstrated that breeding groups of zebrafish exposed to 100 microg/L INDO exhibited reduced spawning rates and clutch sizes compared with control and 1 microg/L INDO exposed fish. In other studies, it was shown that naturally spawning groups of females exhibit increased ovarian levels of PGF(2alpha), E(2), and 17alpha,20beta-dihydroxy-4-pregnen-3-one (a maturation-inducing hormone in zebrafish) near the time of ovulation compared with non-breeding females. Collectively, these experiments indicate that the AA pathway in zebrafish ovaries is involved in the regulation of oocyte maturation and ovulation and a non-selective inhibitor of COX disrupts these processes.
Collapse
Affiliation(s)
- A L Lister
- Department of Integrative Biology, University of Guelph, Guelph, Ont, Canada
| | | |
Collapse
|
20
|
Villablanca EJ, Zhou D, Valentinis B, Negro A, Raccosta L, Mauri L, Prinetti A, Sonnino S, Bordignon C, Traversari C, Russo V. Selected natural and synthetic retinoids impair CCR7- and CXCR4-dependent cell migration in vitro and in vivo. J Leukoc Biol 2008; 84:871-9. [DOI: 10.1189/jlb.0108047] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
|
21
|
Abstract
Establishment and maintenance of the blood system relies on self-renewing hematopoietic stem cells (HSCs) that normally reside in small numbers in the bone marrow niche of adult mammals. This Review describes the developmental origins of HSCs and the molecular mechanisms that regulate lineage-specific differentiation. Studies of hematopoiesis provide critical insights of general relevance to other areas of stem cell biology including the role of cellular interactions in development and tissue homeostasis, lineage programming and reprogramming by transcription factors, and stage- and age-specific differences in cellular phenotypes.
Collapse
Affiliation(s)
- Stuart H Orkin
- Division of Hematology/Oncology, Children's Hospital Boston and the Dana Farber Cancer Institute, Harvard Stem Cell Institute, Harvard Medical School, Boston, MA 02115, USA.
| | | |
Collapse
|
22
|
Recent Papers on Zebrafish and Other Aquarium Fish Models. Zebrafish 2007. [DOI: 10.1089/zeb.2007.9983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|