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Lubisch M, Moyzio S, Kaiser CS, Krafeld I, Leusder D, Scholz M, Hoepfner L, Hippler M, Liebau E, Kahl J. Using Caenorhabditis elegans to produce functional secretory proteins of parasitic nematodes. Acta Trop 2022; 225:106176. [PMID: 34627755 DOI: 10.1016/j.actatropica.2021.106176] [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: 07/14/2021] [Revised: 08/31/2021] [Accepted: 09/25/2021] [Indexed: 11/29/2022]
Abstract
The expression of antigens in their immunologically-active form remains a challenge, both in the analysis of regulatory pathways exploited by parasitic nematodes or in the development of vaccines. Despite the success of native proteins to induce protective immunity, recombinant proteins expressed in bacteria, yeast or insect cells offer only limited protective capacities, presumably due to incorrect folding or missing complex posttranslational modifications. The present study investigates the feasibility of using the free-living nematode Caenorhabditis elegans as an alternative expression system for proteins found in the secretome of parasitic nematodes. Exemplified by the expression of the extracellular superoxide dismutase from Haemonchus contortus (HcSODe) and the extracellular and glycosylated glutathione S-transferase from the filarial parasite Onchocerca volvulus (OvGST1), we continue our efforts to improve production and purification of recombinant proteins expressed in C. elegans. We demonstrate that sufficient quantities of functional proteins can be expressed in C. elegans for subsequent immunological and biochemical studies.
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Affiliation(s)
- Milena Lubisch
- Department of Molecular Physiology, Institute of Animal Physiology, Westfälische Wilhelms-University, Schlossplatz 8, 48143 Münster, Germany
| | - Sven Moyzio
- Department of Molecular Physiology, Institute of Animal Physiology, Westfälische Wilhelms-University, Schlossplatz 8, 48143 Münster, Germany
| | - Charlotte Sophia Kaiser
- Department of Molecular Physiology, Institute of Animal Physiology, Westfälische Wilhelms-University, Schlossplatz 8, 48143 Münster, Germany
| | - Isabel Krafeld
- Department of Molecular Physiology, Institute of Animal Physiology, Westfälische Wilhelms-University, Schlossplatz 8, 48143 Münster, Germany
| | - Dustin Leusder
- Department of Molecular Physiology, Institute of Animal Physiology, Westfälische Wilhelms-University, Schlossplatz 8, 48143 Münster, Germany
| | - Martin Scholz
- Plant Biochemistry and Biotechnology, Institute of Plant Biology and Biotechnology, Westfälische Wilhelms-University, Schlossplatz 8, 48143 Münster, Germany
| | - Lara Hoepfner
- Plant Biochemistry and Biotechnology, Institute of Plant Biology and Biotechnology, Westfälische Wilhelms-University, Schlossplatz 8, 48143 Münster, Germany
| | - Michael Hippler
- Plant Biochemistry and Biotechnology, Institute of Plant Biology and Biotechnology, Westfälische Wilhelms-University, Schlossplatz 8, 48143 Münster, Germany
| | - Eva Liebau
- Department of Molecular Physiology, Institute of Animal Physiology, Westfälische Wilhelms-University, Schlossplatz 8, 48143 Münster, Germany.
| | - Janina Kahl
- Department of Molecular Physiology, Institute of Animal Physiology, Westfälische Wilhelms-University, Schlossplatz 8, 48143 Münster, Germany
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Mignon-Ravix C, Milh M, Kaiser CS, Daniel J, Riccardi F, Cacciagli P, Nagara M, Busa T, Liebau E, Villard L. Abnormal function of the UBA5 protein in a case of early developmental and epileptic encephalopathy with suppression-burst. Hum Mutat 2018; 39:934-938. [PMID: 29663568 DOI: 10.1002/humu.23534] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [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: 02/01/2018] [Revised: 04/03/2018] [Accepted: 04/11/2018] [Indexed: 01/19/2023]
Abstract
Early myoclonic epilepsy (EME) or Aicardi syndrome is one of the most severe epileptic syndromes affecting neonates. We performed whole exome sequencing in a sporadic case affected by EME and his parents. In the proband, we identified a homozygous missense variant in the ubiquitin-like modifier activating enzyme 5 (UBA5) gene, encoding a protein involved in post-translational modifications. Functional analysis of the UBA5 variant protein reveals that it is almost completely unable to perform its trans-thiolation activity. Although recessive variants in UBA5 have recently been associated with epileptic encephalopathy, variants in this gene have never been reported to cause EME. Our results further demonstrate the importance of post-translational modifications such as the addition of an ubiquitin-fold modifier 1 (UFM1) to target proteins (ufmylation) for normal neuronal networks activity, and reveal that the dysfunction of the ubiquitous UBA5 protein is a cause of EME.
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Affiliation(s)
- Cécile Mignon-Ravix
- Aix Marseille Univ, Inserm, UMR-S 1251, MMG, Faculté de Médecine, Marseille, France
| | - Mathieu Milh
- Aix Marseille Univ, Inserm, UMR-S 1251, MMG, Faculté de Médecine, Marseille, France.,Service de Neurologie Pédiatrique, Hôpital d'Enfants de La Timone, Marseille, France
| | | | - Jens Daniel
- Department of Molecular Physiology, University of Muenster, Muenster, Germany
| | - Florence Riccardi
- Aix Marseille Univ, Inserm, UMR-S 1251, MMG, Faculté de Médecine, Marseille, France.,Département de Génétique Médicale, Hôpital d'Enfants de La Timone, Marseille, France
| | - Pierre Cacciagli
- Aix Marseille Univ, Inserm, UMR-S 1251, MMG, Faculté de Médecine, Marseille, France.,Département de Génétique Médicale, Hôpital d'Enfants de La Timone, Marseille, France
| | - Majdi Nagara
- Aix Marseille Univ, Inserm, UMR-S 1251, MMG, Faculté de Médecine, Marseille, France
| | - Tiffany Busa
- Aix Marseille Univ, Inserm, UMR-S 1251, MMG, Faculté de Médecine, Marseille, France.,Département de Génétique Médicale, Hôpital d'Enfants de La Timone, Marseille, France
| | - Eva Liebau
- Department of Molecular Physiology, University of Muenster, Muenster, Germany
| | - Laurent Villard
- Aix Marseille Univ, Inserm, UMR-S 1251, MMG, Faculté de Médecine, Marseille, France.,Département de Génétique Médicale, Hôpital d'Enfants de La Timone, Marseille, France
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Colin E, Daniel J, Ziegler A, Wakim J, Scrivo A, Haack TB, Khiati S, Denommé AS, Amati-Bonneau P, Charif M, Procaccio V, Reynier P, Aleck KA, Botto LD, Herper CL, Kaiser CS, Nabbout R, N'Guyen S, Mora-Lorca JA, Assmann B, Christ S, Meitinger T, Strom TM, Prokisch H, Miranda-Vizuete A, Hoffmann GF, Lenaers G, Bomont P, Liebau E, Bonneau D. Biallelic Variants in UBA5 Reveal that Disruption of the UFM1 Cascade Can Result in Early-Onset Encephalopathy. Am J Hum Genet 2016; 99:695-703. [PMID: 27545681 DOI: 10.1016/j.ajhg.2016.06.030] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 06/28/2016] [Indexed: 01/10/2023] Open
Abstract
Via whole-exome sequencing, we identified rare autosomal-recessive variants in UBA5 in five children from four unrelated families affected with a similar pattern of severe intellectual deficiency, microcephaly, movement disorders, and/or early-onset intractable epilepsy. UBA5 encodes the E1-activating enzyme of ubiquitin-fold modifier 1 (UFM1), a recently identified ubiquitin-like protein. Biochemical studies of mutant UBA5 proteins and studies in fibroblasts from affected individuals revealed that UBA5 mutations impair the process of ufmylation, resulting in an abnormal endoplasmic reticulum structure. In Caenorhabditis elegans, knockout of uba-5 and of human orthologous genes in the UFM1 cascade alter cholinergic, but not glutamatergic, neurotransmission. In addition, uba5 silencing in zebrafish decreased motility while inducing abnormal movements suggestive of seizures. These clinical, biochemical, and experimental findings support our finding of UBA5 mutations as a pathophysiological cause for early-onset encephalopathies due to abnormal protein ufmylation.
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Affiliation(s)
- Estelle Colin
- Department of Biochemistry and Genetics, University Hospital, 49933 Angers Cedex 9, France; UMR CNRS 6214-INSERM 1083 and PREMMI, University of Angers, 49933 Angers Cedex 9, France
| | - Jens Daniel
- Department of Molecular Physiology, Westfälische Wilhelms-University Münster, 48143 Münster, Germany
| | - Alban Ziegler
- Department of Biochemistry and Genetics, University Hospital, 49933 Angers Cedex 9, France; UMR CNRS 6214-INSERM 1083 and PREMMI, University of Angers, 49933 Angers Cedex 9, France
| | - Jamal Wakim
- UMR CNRS 6214-INSERM 1083 and PREMMI, University of Angers, 49933 Angers Cedex 9, France
| | - Aurora Scrivo
- Avenir-Atip team, INSERM U1051, Institute of Neurosciences of Montpellier, University of Montpellier, 34091 Montpellier Cedex 5, France
| | - Tobias B Haack
- Institute of Human Genetics, Technische Universität München, 81675 München, Germany
| | - Salim Khiati
- UMR CNRS 6214-INSERM 1083 and PREMMI, University of Angers, 49933 Angers Cedex 9, France
| | - Anne-Sophie Denommé
- Department of Biochemistry and Genetics, University Hospital, 49933 Angers Cedex 9, France; UMR CNRS 6214-INSERM 1083 and PREMMI, University of Angers, 49933 Angers Cedex 9, France
| | - Patrizia Amati-Bonneau
- Department of Biochemistry and Genetics, University Hospital, 49933 Angers Cedex 9, France; UMR CNRS 6214-INSERM 1083 and PREMMI, University of Angers, 49933 Angers Cedex 9, France
| | - Majida Charif
- UMR CNRS 6214-INSERM 1083 and PREMMI, University of Angers, 49933 Angers Cedex 9, France
| | - Vincent Procaccio
- Department of Biochemistry and Genetics, University Hospital, 49933 Angers Cedex 9, France; UMR CNRS 6214-INSERM 1083 and PREMMI, University of Angers, 49933 Angers Cedex 9, France
| | - Pascal Reynier
- Department of Biochemistry and Genetics, University Hospital, 49933 Angers Cedex 9, France; UMR CNRS 6214-INSERM 1083 and PREMMI, University of Angers, 49933 Angers Cedex 9, France
| | - Kyrieckos A Aleck
- Department of Genetics and Metabolism, Phoenix Children's Medical Group, Phoenix, AZ 85016, USA
| | - Lorenzo D Botto
- Division of Medical Genetics, Department of Pediatrics, University of Utah, Salt Lake City, UT 84132, USA
| | - Claudia Lena Herper
- Department of Molecular Physiology, Westfälische Wilhelms-University Münster, 48143 Münster, Germany
| | - Charlotte Sophia Kaiser
- Department of Molecular Physiology, Westfälische Wilhelms-University Münster, 48143 Münster, Germany
| | - Rima Nabbout
- Department of Pediatric Neurology, National Reference Center for Rare Epilepsies, University Hospital Necker-Enfants-Malades, 75015 Paris, France
| | - Sylvie N'Guyen
- Department of Pediatric Neurology, University Hospital, 49933 Angers Cedex 9, France
| | - José Antonio Mora-Lorca
- Institute of Biomedicine of Seville, University Hospital Virgen del Rocío/CSIC/University of Seville, 41013 Seville, Spain
| | - Birgit Assmann
- Department of General Pediatrics, Division of Pediatric Metabolic Medicine and Neuropediatrics, University Hospital Heidelberg, 69120 Heidelberg, Germany
| | - Stine Christ
- Department of General Pediatrics, Division of Pediatric Metabolic Medicine and Neuropediatrics, University Hospital Heidelberg, 69120 Heidelberg, Germany
| | - Thomas Meitinger
- Institute of Human Genetics, Technische Universität München, 81675 München, Germany; Institute of Human Genetics, Helmholtz Zentrum München, 85764 Neuherberg, Germany
| | - Tim M Strom
- Institute of Human Genetics, Technische Universität München, 81675 München, Germany; Institute of Human Genetics, Helmholtz Zentrum München, 85764 Neuherberg, Germany
| | - Holger Prokisch
- Institute of Human Genetics, Technische Universität München, 81675 München, Germany; Institute of Human Genetics, Helmholtz Zentrum München, 85764 Neuherberg, Germany
| | - Antonio Miranda-Vizuete
- Institute of Biomedicine of Seville, University Hospital Virgen del Rocío/CSIC/University of Seville, 41013 Seville, Spain
| | - Georg F Hoffmann
- Department of General Pediatrics, Division of Pediatric Metabolic Medicine and Neuropediatrics, University Hospital Heidelberg, 69120 Heidelberg, Germany
| | - Guy Lenaers
- UMR CNRS 6214-INSERM 1083 and PREMMI, University of Angers, 49933 Angers Cedex 9, France
| | - Pascale Bomont
- Avenir-Atip team, INSERM U1051, Institute of Neurosciences of Montpellier, University of Montpellier, 34091 Montpellier Cedex 5, France
| | - Eva Liebau
- Department of Molecular Physiology, Westfälische Wilhelms-University Münster, 48143 Münster, Germany
| | - Dominique Bonneau
- Department of Biochemistry and Genetics, University Hospital, 49933 Angers Cedex 9, France; UMR CNRS 6214-INSERM 1083 and PREMMI, University of Angers, 49933 Angers Cedex 9, France.
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Kaiser CS, Römpp H, Schmidt PC. Supercritical carbon dioxide extraction of chamomile flowers: extraction efficiency, stability, and in-line inclusion of chamomile-carbon dioxide extract in beta-cyclodextrin. Phytochem Anal 2004; 15:249-256. [PMID: 15311845 DOI: 10.1002/pca.775] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The extraction of chamomile flowers using supercritical carbon dioxide was investigated with respect to extraction efficiency and compared with solvent extraction. The stability of matricine, a sensitive constituent of the essential oil of chamomile, in these extracts was studied during storage at different temperatures over 6 months. Matricine was stable at -30 degrees C. A slight decrease (80-90% recovery) occurred at +5 degrees C, whereas complete decomposition of matricine took place within 3-4 months at room temperature and at +30 degrees C, respectively. An in-line inclusion of chamomile constituents in beta-cyclodextrin (beta-CD) during the extraction process was assessed and inclusion rates between 40 and 95% were obtained depending on the amount of beta-CD and the type of chamomile constituent. No further stabilization of matricine in the carbon dioxide extract/beta-CD complexes was achieved. High residual water contents in the complexes even after freeze-drying were identified as accelerating the decomposition. In addition, the extractability of flavonoids, such as apigenin and apigenin-7-glucoside, was determined. Apigenin-7-glucoside, the more hydrophilic substance, was not extractable with pure carbon dioxide and showed a recovery of 11% using methanol modified carbon dioxide (18%, w/w) at 60 degrees C and 380 bar. Extraction conditions in the two-phase region of the binary mixture carbon dioxide-methanol (70 degrees C, 100 bar) led to a drastic change in fluid polarity and hence extractability increased to 92-95%.
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Affiliation(s)
- C S Kaiser
- Department of Pharmaceutical Technology. Auf der Morgenstelle 8. D-72076 Tübingen, Germany
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Kaiser CS, Römpp H, Schmidt PC. Pharmaceutical applications of supercritical carbon dioxide. Pharmazie 2001; 56:907-26. [PMID: 11802652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
The appearance of a supercritical state was already observed at the beginning of the 19th century. Nevertheless, the industrial extraction of plant and other natural materials started about twenty years ago with the decaffeination of coffee. Today carbon dioxide is the most common gas for supercritical fluid extraction in food and pharmaceutical industry. Since pure supercritical carbon dioxide is a lipophilic solvent, mixtures with organic solvents, especially alcohols, are used to increase the polarity of the extraction fluid; more polar compounds can be extracted in this way. The main fields of interest are the extraction of vegetable oils from plant material in analytical and preparative scale, the preparation of essential oils for food and cosmetic industry and the isolation of substances of pharmaceutical relevance. Progress in research was made by the precise measurement of phase equilibria data by means of different methods. Apart from extraction, supercritical fluid chromatography was introduced in the field of analytics, as well as micro- and nanoparticle formation using supercritical fluids as solvent or antisolvent. This review presents pharmaceutical relevant literature of the last twenty years with special emphasis on extraction of natural materials.
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Affiliation(s)
- C S Kaiser
- Department of Pharmaceutical Technology, Eberhard-Karls-University, Tübingen, Germany
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