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Jemec Kokalj A, Leonardi A, Perc V, Dolar A, Drobne D, Križaj I. Proteomics of the haemolymph of the terrestrial crustacean Porcellio scaber reveals components of its innate immunity under baseline conditions. Biochimie 2023; 213:12-21. [PMID: 37187404 DOI: 10.1016/j.biochi.2023.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/05/2023] [Accepted: 05/12/2023] [Indexed: 05/17/2023]
Abstract
The terrestrial crustacean Porcellio scaber is an established test organism in environmental research. We analysed the haemolymph proteome of P. scaber using a classical proteomic approach based on one-dimensional gel electrophoresis and tandem mass spectrometry. Using a publicly available protein database and our P. scaber transcriptome data, we have identified 76 proteins involved in cytoskeleton formation, protein degradation, vesicular transport, genetic information processing, detoxification, carbohydrate and lipid metabolism reflecting haemocyte metabolic activity, active intracellular transport, and intercellular communication. Compared with the data reported for other crustaceans, 28 of these P. scaber proteins have been linked to its immunity, among them hemocyanin, α-2-macroglobulin, phenoloxidase 3, superoxide dismutase, glutathione S-transferase, haemolymph clottable protein, and histones H4 and H2B. Our results thus provide a firm base for studying the innate immune response of P. scaber at the level of the haemolymph proteome. This knowledge is of particular importance in ecotoxicity studies with various environmental stressors where understanding physiological changes is important to reveal possible modes of action.
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Affiliation(s)
- Anita Jemec Kokalj
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Večna Pot 111, SI-1000, Ljubljana, Slovenia.
| | - Adrijana Leonardi
- Department of Molecular and Biomedical Sciences, Jožef Stefan Institute, Jamova 39, SI-1000, Ljubljana, Slovenia
| | - Valentina Perc
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Večna Pot 111, SI-1000, Ljubljana, Slovenia
| | - Andraž Dolar
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Večna Pot 111, SI-1000, Ljubljana, Slovenia
| | - Damjana Drobne
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Večna Pot 111, SI-1000, Ljubljana, Slovenia
| | - Igor Križaj
- Department of Molecular and Biomedical Sciences, Jožef Stefan Institute, Jamova 39, SI-1000, Ljubljana, Slovenia
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Kunčič K, Mrak P, Žnidaršič N. Formation and remodelling of septate junctions in the epidermis of isopod Porcellioscaber during development. Zookeys 2022; 1101:159-181. [PMID: 36760974 PMCID: PMC9848928 DOI: 10.3897/zookeys.1101.78711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 01/14/2022] [Indexed: 11/12/2022] Open
Abstract
Septate junctions (SJs) perform an occluding function in invertebrate epithelia and consist of parallel septa extending across the intercellular space between neighbouring cells. In addition, they are required for several morphogenetic processes in arthropods. The biogenesis of SJs during development is inadequately studied and it was characterised in detail only for various epithelia of Drosophilamelanogaster. This paper provides a detailed analysis of the ultrastructural differentiation of SJs in the epidermis of the terrestrial isopod Porcellioscaber during embryonic and postembryonic development. In this study, mid-stage embryo S13 was the earliest stage in which single septa were observed basally to the adherens junction (AJ). Differentiation of SJs during further development includes gradual elongation of septa arrays and formation of continuous arrays of septa. The enlargement of SJs in the epidermis is most pronounced at the transition from embryonic to postembryonic development and after the release of mancae from the marsupium. SJs of postmarsupial mancae are similar to those of adults, but are not yet as extensive. Comparison of the differentiation of SJs in the epidermis and hindgut of P.scaber, reveals a similar sequence of events. In addition, remodelling of SJs was observed in the epidermis of late marsupial mancae, the stage of cuticle renewal. Common features of SJs' biogenesis in P.scaber and D.melanogaster ectodermal epithelia are indicated.
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Affiliation(s)
- Katja Kunčič
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Večna pot 111, 1000 Ljubljana, SloveniaUniversity of LjubljanaLjubljanaSlovenia
| | - Polona Mrak
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Večna pot 111, 1000 Ljubljana, SloveniaUniversity of LjubljanaLjubljanaSlovenia
| | - Nada Žnidaršič
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Večna pot 111, 1000 Ljubljana, SloveniaUniversity of LjubljanaLjubljanaSlovenia
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Dolar A, Drobne D, Dolenec M, Marinšek M, Jemec Kokalj A. Time-dependent immune response in Porcellio scaber following exposure to microplastics and natural particles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 818:151816. [PMID: 34813818 DOI: 10.1016/j.scitotenv.2021.151816] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 11/10/2021] [Accepted: 11/16/2021] [Indexed: 06/13/2023]
Abstract
Microplastics are very common contaminants in the environment. Despite increasing efforts to assess the effects of microplastics on soil organisms, there remains a lack of knowledge on how organisms respond to diverse types of microplastics after different exposure durations. In the present study, we investigated the immune response of the terrestrial crustacean Porcellio scaber exposed to the two most common microplastic particles in the environment: polyester fibres and tyre particles. We also tested two natural particles: wood dust and silica powder, with all treatments performed at 1.5% w/w. The response of P. scaber was evaluated at the level of the immune system, and also the biochemical, organism and population level, after different exposure durations (1, 2, 4, 7, 14, 21 days). These data reveal dynamic changes in the levels of some immune parameters shortly after exposure, with a gradual return to control values. The total number of haemocytes was significantly decreased after 4 days of exposure to tyre particles, while the proportion of different haemocyte types in the haemolymph was altered shortly after exposure to both polyester fibres and tyre particles. Moreover, 7 days of exposure to tyre particles resulted in increased superoxide dismutase activity in the haemolymph, while metabolic activity in whole woodlice (measured as electron transport system activity) was increased after exposure for 7, 14 and 21 days. In contrast, the natural particles did not elicit any significant changes in the measured parameters. Survival and feeding of P. scaber were not altered by exposure to the microplastics and natural particles in soil. Overall, this study defines a time-dependent transient immune response of P. scaber, which indicates that immune parameters represent sensitive biomarkers of exposure to microplastics. We discuss the importance of using natural particles in studies of microplastics exposure and their effects.
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Affiliation(s)
- Andraž Dolar
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Večna pot 111, 1000 Ljubljana, Slovenia.
| | - Damjana Drobne
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Večna pot 111, 1000 Ljubljana, Slovenia
| | - Matej Dolenec
- Department of Geology, Faculty of Natural Sciences and Engineering, University of Ljubljana, Aškerčeva 12, 1000 Ljubljana, Slovenia
| | - Marjan Marinšek
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, 1000 Ljubljana, Slovenia
| | - Anita Jemec Kokalj
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Večna pot 111, 1000 Ljubljana, Slovenia
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van Noorden CJ, Breznik B, Novak M, van Dijck AJ, Tanan S, Vittori M, Bogataj U, Bakker N, Khoury JD, Molenaar RJ, Hira VV. Cell Biology Meets Cell Metabolism: Energy Production Is Similar in Stem Cells and in Cancer Stem Cells in Brain and Bone Marrow. J Histochem Cytochem 2022; 70:29-51. [PMID: 34714696 PMCID: PMC8721571 DOI: 10.1369/00221554211054585] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Energy production by means of ATP synthesis in cancer cells has been investigated frequently as a potential therapeutic target in this century. Both (an)aerobic glycolysis and oxidative phosphorylation (OXPHOS) have been studied. Here, we review recent literature on energy production in glioblastoma stem cells (GSCs) and leukemic stem cells (LSCs) versus their normal counterparts, neural stem cells (NSCs) and hematopoietic stem cells (HSCs), respectively. These two cancer stem cell types were compared because their niches in glioblastoma tumors and in bone marrow are similar. In this study, it became apparent that (1) ATP is produced in NSCs and HSCs by anaerobic glycolysis, whereas fatty acid oxidation (FAO) is essential for their stem cell fate and (2) ATP is produced in GSCs and LSCs by OXPHOS despite the hypoxic conditions in their niches with FAO and amino acids providing its substrate. These metabolic processes appeared to be under tight control of cellular regulation mechanisms which are discussed in depth. However, our conclusion is that systemic therapeutic targeting of ATP production via glycolysis or OXPHOS is not an attractive option because of its unwanted side effects in cancer patients.
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Affiliation(s)
| | - Barbara Breznik
- Department of Genetic Toxicology and Cancer Biology, National Institute of Biology, Ljubljana, Slovenia
| | - Metka Novak
- Department of Genetic Toxicology and Cancer Biology, National Institute of Biology, Ljubljana, Slovenia
| | | | | | - Miloš Vittori
- Amsterdam UMC Location Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands; Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Urban Bogataj
- Amsterdam UMC Location Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands; Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | | | - Joseph D. Khoury
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Remco J. Molenaar
- Department of Genetic Toxicology and Cancer Biology, National Institute of Biology, Ljubljana, Slovenia,Department of Medical Oncology
| | - Vashendriya V.V. Hira
- Vashendriya V.V. Hira, Department of Genetic Toxicology and Cancer Biology, National Institute of Biology, Večna Pot 111, 1000 Ljubljana, Slovenia. E-mail:
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Dolar A, Kostanjšek R, Mayall C, Drobne D, Kokalj AJ. Modulations of immune parameters caused by bacterial and viral infections in the terrestrial crustacean Porcellio scaber: Implications for potential markers in environmental research. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2020; 113:103789. [PMID: 32735963 DOI: 10.1016/j.dci.2020.103789] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/30/2020] [Accepted: 07/02/2020] [Indexed: 06/11/2023]
Abstract
The terrestrial crustacean Porcellio scaber (Crustacea: Isopoda) is an established invertebrate model in environmental research. Preceding research using isopods did not widely use immune markers. In order to advance their use in research, knowledge of the reference values in control animals as well as variations during infections is of importance. This study presents, for the first time, the morphology, and ultrastructure of the three main haemocyte types of Porcellio scaber as semigranulocytes (SGCs), granulocytes (GCs), and hyalinocytes (HCs), with the latter having two subtypes, using various light and electron microscopy approaches. The modulation of selected immune cellular and humoral parameters of P. scaber in symptomatic phases of Rhabdochlamydia porcellionis and Iridovirus IIV-31 infections is presented. A clear difference in the immune responses of bacterial and viral infections was shown. Remarkable changes in total haemocyte count (THC) values and the proportions of three different haemocyte types were found in animals with a viral infection, which were not as significant in bacterially infected animals. Modified NO levels and SOD activity were more pronounced in cases of bacterial infection. Knowledge of the morphological and ultrastructural features of distinct haemocyte types, understanding the baseline values of immune parameters in control animals without evident symptoms of infection, and the influence that infections can have on these parameters can serve as a basis for the further use of P. scaber immune markers in environmental research.
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Affiliation(s)
- Andraž Dolar
- University of Ljubljana, Biotechnical Faculty, Jamnikarjeva 101, 1000, Ljubljana, Slovenia.
| | - Rok Kostanjšek
- University of Ljubljana, Biotechnical Faculty, Jamnikarjeva 101, 1000, Ljubljana, Slovenia
| | - Craig Mayall
- University of Ljubljana, Biotechnical Faculty, Jamnikarjeva 101, 1000, Ljubljana, Slovenia
| | - Damjana Drobne
- University of Ljubljana, Biotechnical Faculty, Jamnikarjeva 101, 1000, Ljubljana, Slovenia
| | - Anita Jemec Kokalj
- University of Ljubljana, Biotechnical Faculty, Jamnikarjeva 101, 1000, Ljubljana, Slovenia
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