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Holzinger JM, Toelge M, Werner M, Ederer KU, Siegmund HI, Peterhoff D, Blaas SH, Gisch N, Brochhausen C, Gessner A, Bülow S. Scorpionfish BPI is highly active against multiple drug-resistant Pseudomonas aeruginosa isolates from people with cystic fibrosis. eLife 2023; 12:e86369. [PMID: 37461324 PMCID: PMC10353861 DOI: 10.7554/elife.86369] [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: 01/21/2023] [Accepted: 06/07/2023] [Indexed: 07/20/2023] Open
Abstract
Chronic pulmonary infection is a hallmark of cystic fibrosis (CF) and requires continuous antibiotic treatment. In this context, Pseudomonas aeruginosa (Pa) is of special concern since colonizing strains frequently acquire multiple drug resistance (MDR). Bactericidal/permeability-increasing protein (BPI) is a neutrophil-derived, endogenous protein with high bactericidal potency against Gram-negative bacteria. However, a significant range of people with CF (PwCF) produce anti-neutrophil cytoplasmic antibodies against BPI (BPI-ANCA), thereby neutralizing its bactericidal function. In accordance with literature, we describe that 51.0% of a total of 39 PwCF expressed BPI-ANCA. Importantly, an orthologous protein to human BPI (huBPI) derived from the scorpionfish Sebastes schlegelii (scoBPI) completely escaped recognition by these autoantibodies. Moreover, scoBPI exhibited high anti-inflammatory potency towards Pa LPS and was bactericidal against MDR Pa derived from PwCF at nanomolar concentrations. In conclusion, our results highlight the potential of highly active orthologous proteins of huBPI in treatment of MDR Pa infections, especially in the presence of BPI-ANCA.
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Affiliation(s)
- Jonas Maurice Holzinger
- Institute of Clinical Microbiology and Hygiene Regensburg, University Hospital Regensburg, Regensburg, Germany
| | - Martina Toelge
- Institute of Clinical Microbiology and Hygiene Regensburg, University Hospital Regensburg, Regensburg, Germany
| | - Maren Werner
- Institute of Clinical Microbiology and Hygiene Regensburg, University Hospital Regensburg, Regensburg, Germany
| | - Katharina Ursula Ederer
- Institute of Clinical Microbiology and Hygiene Regensburg, University Hospital Regensburg, Regensburg, Germany
| | | | - David Peterhoff
- Institute of Clinical Microbiology and Hygiene Regensburg, University Hospital Regensburg, Regensburg, Germany
- Institute of Medical Microbiology and Hygiene Regensburg, University of Regensburg, Regensburg, Germany
| | | | - Nicolas Gisch
- Division of Bioanalytical Chemistry, Priority Area Infections, Research Center Borstel, Leibniz Lung Center, Borstel, Germany
| | - Christoph Brochhausen
- Institute of Pathology, University of Regensburg, Regensburg, Germany
- Institute of Pathology, University Medical Center Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - André Gessner
- Institute of Clinical Microbiology and Hygiene Regensburg, University Hospital Regensburg, Regensburg, Germany
- Institute of Medical Microbiology and Hygiene Regensburg, University of Regensburg, Regensburg, Germany
| | - Sigrid Bülow
- Institute of Clinical Microbiology and Hygiene Regensburg, University Hospital Regensburg, Regensburg, Germany
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Santon M, Deiss F, Bitton P, Michiels NK. A context analysis of bobbing and fin-flicking in a small marine benthic fish. Ecol Evol 2021; 11:1254-1263. [PMID: 33598128 PMCID: PMC7863667 DOI: 10.1002/ece3.7116] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 11/05/2020] [Accepted: 11/11/2020] [Indexed: 11/23/2022] Open
Abstract
Most antipredator strategies increase survival of individuals by signaling to predators, by reducing the chances of being recognized as prey, or by bewildering a predator's perception. In fish, bobbing and fin-flicking are commonly considered as pursuit-deterrent behaviors that signal a predator that it has been detected and thus lost its surprise-attack advantage. Yet, very few studies assessed whether such behavioral traits are restricted to the visual presence of a predator. In this study, we used the yellow black-headed triplefin Tripterygion delaisi to investigate the association between these behaviors and the visual exposure to (a) a black scorpionfish predator (Scorpaena porcus), (b) a stone of a size similar to that of S. porcus, (c) a conspecific, and (d) a harmless heterospecific combtooth blenny (Parablennius sanguinolentus). We used a laboratory-controlled experiment with freshly caught fish designed to test for differences in visual cues only. Distance kept by the focal fish to each stimulus and frequency of bobbing and fin-flicking were recorded. Triplefins kept greater distance from the stimulus compartment when a scorpionfish predator was visible. Bobbing was more frequent in the visual presence of a scorpionfish, but also shown toward the other stimuli. However, fin flicks were equally abundant across all stimuli. Both behaviors decreased in frequency over time suggesting that triplefin become gradually comfortable in a nonchanging new environment. We discuss why bobbing and fin-flicking are not exclusive pursuit-deterrent behaviors in this species, and propose additional nonexclusive functions such as enhancing depth perception by parallax motion (bobbing) or signaling vigilance (fin-flicking).
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Affiliation(s)
- Matteo Santon
- Animal Evolutionary EcologyDepartment of BiologyFaculty of ScienceInstitute of Evolution and EcologyUniversity of TübingenTübingenGermany
| | - Felix Deiss
- Animal Evolutionary EcologyDepartment of BiologyFaculty of ScienceInstitute of Evolution and EcologyUniversity of TübingenTübingenGermany
| | - Pierre‐Paul Bitton
- Animal Evolutionary EcologyDepartment of BiologyFaculty of ScienceInstitute of Evolution and EcologyUniversity of TübingenTübingenGermany
- Department of PsychologyMemorial University of NewfoundlandSt. John'sNLCanada
| | - Nico K. Michiels
- Animal Evolutionary EcologyDepartment of BiologyFaculty of ScienceInstitute of Evolution and EcologyUniversity of TübingenTübingenGermany
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Boissin E, Micu D, Janczyszyn-Le Goff M, Neglia V, Bat L, Todorova V, Panayotova M, Kruschel C, Macic V, Milchakova N, Keskin Ç, Anastasopoulou A, Nasto I, Zane L, Planes S. Contemporary genetic structure and postglacial demographic history of the black scorpionfish, Scorpaena porcus, in the Mediterranean and the Black Seas. Mol Ecol 2016; 25:2195-209. [PMID: 26989881 DOI: 10.1111/mec.13616] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [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: 10/31/2015] [Revised: 02/09/2016] [Accepted: 03/11/2016] [Indexed: 12/24/2022]
Abstract
Understanding the distribution of genetic diversity in the light of past demographic events linked with climatic shifts will help to forecast evolutionary trajectories of ecosystems within the current context of climate change. In this study, mitochondrial sequences and microsatellite loci were analysed using traditional population genetic approaches together with Bayesian dating and the more recent approximate Bayesian computation scenario testing. The genetic structure and demographic history of a commercial fish, the black scorpionfish, Scorpaena porcus, was investigated throughout the Mediterranean and Black Seas. The results suggest that the species recently underwent population expansions, in both seas, likely concomitant with the warming period following the Last Glacial Maximum, 20 000 years ago. A weak contemporaneous genetic differentiation was identified between the Black Sea and the Mediterranean Sea. However, the genetic diversity was similar for populations of the two seas, suggesting a high number of colonizers entered the Black Sea during the interglacial period and/or the presence of a refugial population in the Black Sea during the glacial period. Finally, within seas, an east/west genetic differentiation in the Adriatic seems to prevail, whereas the Black Sea does not show any structured spatial genetic pattern of its population. Overall, these results suggest that the Black Sea is not that isolated from the Mediterranean, and both seas revealed similar evolutionary patterns related to climate change and changes in sea level.
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Affiliation(s)
- E Boissin
- EPHE, PSL Research University, UPVD, CNRS, USR 3278 CRIOBE, Perpignan, F-66360, France.,Laboratoire d'Excellence CRIOBE, BP 1013, 98729, Papetoai, Moorea, Polynésie Française
| | - D Micu
- National Institute of Marine Research and Development, Grigore Antipa, Constanta, 900581, Romania
| | - M Janczyszyn-Le Goff
- EPHE, PSL Research University, UPVD, CNRS, USR 3278 CRIOBE, Perpignan, F-66360, France.,Laboratoire d'Excellence CRIOBE, BP 1013, 98729, Papetoai, Moorea, Polynésie Française
| | - V Neglia
- EPHE, PSL Research University, UPVD, CNRS, USR 3278 CRIOBE, Perpignan, F-66360, France.,Laboratoire d'Excellence CRIOBE, BP 1013, 98729, Papetoai, Moorea, Polynésie Française
| | - L Bat
- Department of Marine Biology and Ecology, Faculty of Fisheries, Sinop University, Sinop, TR57000, Turkey
| | - V Todorova
- IO-BAS - Institute of Oceanology, PO Box 152, Varna, 9000, Bulgaria
| | - M Panayotova
- IO-BAS - Institute of Oceanology, PO Box 152, Varna, 9000, Bulgaria
| | - C Kruschel
- University of Zadar, Ul. Mihovila Pavlinovića, Zadar, 23000, Croatia
| | - V Macic
- Institute of Marine Biology Kotor (IBMK), Dobrota bb, PO Box 69, Kotor, 85330, Montenegro
| | - N Milchakova
- Institute of Marine Biological Research (IMBR), 2 Nakhimov ave., Sevastopol, 299011, Russia
| | - Ç Keskin
- Faculty of Fisheries, Istanbul University, Ordu St 200, Istanbul, TR-34470, Turkey
| | - A Anastasopoulou
- Hellenic Centre for Marine Research, 46.7 km Athinon-Souniou Av., Anavyssos, 19013, Greece
| | - I Nasto
- Department of Biology, Faculty of Technical Sciences, Vlora University, Vlora, 9401, Albania
| | - L Zane
- Department of Biology, University of Padova, via U. Bassi/58B, Padova, I-35121, Italy
| | - S Planes
- EPHE, PSL Research University, UPVD, CNRS, USR 3278 CRIOBE, Perpignan, F-66360, France.,Laboratoire d'Excellence CRIOBE, BP 1013, 98729, Papetoai, Moorea, Polynésie Française
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Kartavtsev YP, Rozhkovan KV, Masalkova NA. Phylogeny based on two mtDNA genes (Co-1, Cyt-B) among Sculpins (Scorpaeniformes, Cottidae) and some other scorpionfish in the Russian Far East. Mitochondrial DNA A DNA Mapp Seq Anal 2014; 27:2225-40. [PMID: 25431818 DOI: 10.3109/19401736.2014.984164] [Citation(s) in RCA: 7] [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] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The average scores of p-distances at Co-1 and Cyt-b genes revealed a pattern of increased nucleotide diversity for four categories: (1) intraspecies, (2) intragenus, (3) intrafamily, and (4) intraorder. Scores for Co-1 genes were following: (1) 0.24 ± 0.19% (n = 66), (2) 1.54 ± 0.27% (n = 33), (3) 11.57 ± 0.24% (n = 42), and (4) 12.91 ± 0.16% (n = 102); while for Cyt-b genes, those values were (1) 1.92 ± 0.55% (n = 24), (2) 8.19 ± 0.09% (n = 812), (3) 15.42 ± 0.07% (n = 1573), and (4) 23.13 ± 0.19% (n = 211). A concordant increase in the distance score, as the rank of taxa grows, with the minimum at intraspecies level substantiates the concept that speciation in the order Scorpaeniformes mostly follows a geographic mode. Phylogenetic trees for 40 sequences of scorpionfish and four other fishes belonging to Actinopterigii were developed using Co-1 gene and four different analytical approaches: Bayesian, ML, MP, and NJ. Resolution of the Co-1 trees for the three genera that included different species branches was quite distinct in all approaches. Intrafamily branching for Cyt-b in Cottidae was also supported by all four kinds of trees but only for less numerous genera in the research.
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Affiliation(s)
- Yuri Phedorovich Kartavtsev
- a A.V. Zhirmunsky Institute of Marine Biology , Vladivostok , Russian Federation .,b Far Eastern Federal University, Vladivostok, Russian Federation , and
| | | | - Natalya A Masalkova
- a A.V. Zhirmunsky Institute of Marine Biology , Vladivostok , Russian Federation
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