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Porcino C, Mhalhel K, Briglia M, Cometa M, Guerrera MC, Germanà PG, Montalbano G, Levanti M, Laurà R, Abbate F, Germanà A, Aragona M. Neurotrophins and Trk Neurotrophin Receptors in the Retina of Adult Killifish ( Nothobranchius guentheri). Int J Mol Sci 2024; 25:2732. [PMID: 38473977 DOI: 10.3390/ijms25052732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/19/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
Specific subpopulations of neurons in nerve and sensory systems must be developed and maintained, and this is accomplished in significant part by neurotrophins (NTs) and the signaling receptors on which they act, called tyrosine protein kinase receptors (Trks). The neurotrophins-tyrosine protein kinase receptors (NTs/Trks) system is involved in sensory organ regulation, including the visual system. An NTs/Trks system alteration is associated with neurodegeneration related to aging and diseases, including retinal pathologies. An emergent model in the field of translational medicine, for instance, in aging study, is the annual killifish belonging to the Nothobranchius genus, thanks to its short lifespan. Members of this genus, such as Nothobranchius guentheri, and humans share a similar retinal stratigraphy. Nevertheless, according to the authors' knowledge, the occurrence and distribution of the NTs/Trks system in the retina of N. guentheri has never been investigated before. Therefore, the present study aimed to localize neurotrophin BDNF, NGF, and NT-3 and TrkA, TrkB, and TrkC receptors in the N. guentheri retina using the immunofluorescence method. The present investigation demonstrates, for the first time, the occurrence of the NTs/Trks system in N. guentheri retina and, consequently, the potential key role of these proteins in the biology and survival of the retinal cells.
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Affiliation(s)
- Caterina Porcino
- Zebrafish Neuromorphology Lab, Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy
| | - Kamel Mhalhel
- Zebrafish Neuromorphology Lab, Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy
| | - Marilena Briglia
- Zebrafish Neuromorphology Lab, Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy
| | - Marzio Cometa
- Zebrafish Neuromorphology Lab, Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy
| | - Maria Cristina Guerrera
- Zebrafish Neuromorphology Lab, Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy
| | - Patrizia Germana Germanà
- Zebrafish Neuromorphology Lab, Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy
| | - Giuseppe Montalbano
- Zebrafish Neuromorphology Lab, Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy
| | - Maria Levanti
- Zebrafish Neuromorphology Lab, Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy
| | - Rosaria Laurà
- Zebrafish Neuromorphology Lab, Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy
| | - Francesco Abbate
- Zebrafish Neuromorphology Lab, Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy
| | - Antonino Germanà
- Zebrafish Neuromorphology Lab, Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy
| | - Marialuisa Aragona
- Zebrafish Neuromorphology Lab, Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy
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Aragona M, Briglia M, Porcino C, Mhalhel K, Cometa M, Germanà PG, Montalbano G, Levanti M, Laurà R, Abbate F, Germanà A, Guerrera MC. Localization of Calretinin, Parvalbumin, and S100 Protein in Nothobranchius guentheri Retina: A Suitable Model for the Retina Aging. Life (Basel) 2023; 13:2050. [PMID: 37895432 PMCID: PMC10608213 DOI: 10.3390/life13102050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/05/2023] [Accepted: 09/28/2023] [Indexed: 10/29/2023] Open
Abstract
Calcium-binding proteins (CaBPs) are members of a heterogeneous family of proteins able to buffer intracellular Ca2+ ion concentration. CaBPs are expressed in the central and peripheral nervous system, including a subpopulation of retinal neurons. Since neurons expressing different CaBPs show different susceptibility to degeneration, it could be hypothesized that they are not just markers of different neuronal subpopulations, but that they might be crucial in survival. CaBPs' ability to buffer Ca2+ cytoplasmatic concentration makes them able to defend against a toxic increase in intracellular calcium that can lead to neurodegenerative processes, including those related to aging. An emergent model for aging studies is the annual killifish belonging to the Nothobranchius genus, thanks to its short lifespan. Members of this genus, such as Nothobranchius guentheri, show a retinal stratigraphy similar to that of other actinopterygian fishes and humans. However, according to our knowledge, CaBPs' occurrence and distribution in the retina of N. guentheri have never been investigated before. Therefore, the present study aimed to localize Calretinin N-18, Parvalbumin, and S100 protein (S100p) in the N. guentheri retina with immunohistochemistry methods. The results of the present investigation demonstrate for the first time the occurrence of Calretinin N-18, Parvalbumin, and S100p in N. guentheri retina and, consequently, the potential key role of these CaBPs in the biology of the retinal cells. Hence, the suitability of N. guentheri as a model to study the changes in CaBPs' expression patterns during neurodegenerative processes affecting the retina related both to disease and aging can be assumed.
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Affiliation(s)
| | | | - Caterina Porcino
- Zebrafish Neuromorphology Lab, Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy; (M.A.); (M.B.); (K.M.); (M.C.); (P.G.G.); (G.M.); (M.L.); (R.L.); (F.A.); (A.G.); (M.C.G.)
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Cacialli P, Ricci S, Lazzari M, Milani L, Franceschini V. Transcription Pattern of Neurotrophic Factors and Their Receptors in Adult Zebrafish Spinal Cord. Int J Mol Sci 2023; 24:10953. [PMID: 37446129 DOI: 10.3390/ijms241310953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 06/26/2023] [Accepted: 06/29/2023] [Indexed: 07/15/2023] Open
Abstract
In vertebrates, neurotrophins and their receptors play a fundamental role in the central and peripheral nervous systems. Several studies reported that each neurotrophin/receptor signalling pathway can perform various functions during axon development, neuronal growth, and plasticity. Previous investigations in some fish species have identified neurotrophins and their receptors in the spinal cord under physiological conditions and after injuries, highlighting their potential role during regeneration. In our study, for the first time, we used an excellent animal model, the zebrafish (Danio rerio), to compare the mRNA localization patterns of neurotrophins and receptors in the spinal cord. We quantified the levels of mRNA using qPCR, and identified the transcription pattern of each neurotrophin/receptor pathway via in situ hybridization. Our data show that ngf/trka are the most transcribed members in the adult zebrafish spinal cord.
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Affiliation(s)
- Pietro Cacialli
- Department of Biological, Geological and Environmental Sciences, University of Bologna, 40126 Bologna, Italy
| | - Serena Ricci
- Department of Biological, Geological and Environmental Sciences, University of Bologna, 40126 Bologna, Italy
| | - Maurizio Lazzari
- Department of Biological, Geological and Environmental Sciences, University of Bologna, 40126 Bologna, Italy
| | - Liliana Milani
- Department of Biological, Geological and Environmental Sciences, University of Bologna, 40126 Bologna, Italy
| | - Valeria Franceschini
- Department of Biological, Geological and Environmental Sciences, University of Bologna, 40126 Bologna, Italy
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Zaccone G, Capillo G, Aragona M, Alesci A, Cupello C, Lauriano ER, Guerrera MC, Kuciel M, Zuwala K, Germana A, Icardo JM. Gill structure and neurochemical markers in the African bonytongue (Heterotis niloticus): A preliminary study. Acta Histochem 2022; 124:151954. [PMID: 36174310 DOI: 10.1016/j.acthis.2022.151954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 09/13/2022] [Accepted: 09/15/2022] [Indexed: 11/01/2022]
Abstract
We have conducted a morphological and immunohistochemical study of the gills of juvenile specimens of the obligate air-breathing fish Heterotis niloticus. The study has been performed under normoxic and hypoxic conditions. The gills showed a reduced respiratory surface area by development of an interlamellar cellular mass (ILCM). The ILCM persisted without changes under both normoxia and hypoxia. Neuroepithelial cells (NECs), the major oxygen and hypoxia sensing cell type, were located in the distal end of the gill filaments and along the ILCM edges. These cells expressed 5HT, the neuronal isoform of the nitric oxide synthase (nNOS) and the vesicular acetylcholine transporter (VAChT). Furthermore, NECs appeared associated with nitrergic nerve fibres. The O2 levels did not modify the location, number or the immunohistochemical characteristics of NECs. Pavement cells covering the ILCM were also positive to nNOS and VAChT. The mechanisms of O2 sensing in the gills of Heterotis appears to involve several cell populations, the release of multiple neurotransmitters and a diversity of excitatory, inhibitory and modulatory mechanisms.
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Affiliation(s)
- Giacomo Zaccone
- Department of Veterinary Sciences, University of Messina, Viale dell'Annunziata, I-98168 Messina, Italy.
| | - Gioele Capillo
- Department of Veterinary Sciences, University of Messina, Viale dell'Annunziata, I-98168 Messina, Italy; Institute for Marine Biological Resources and Biotechnology (IRBIM), National Research Council (CNR), 98122 Messina, Italy.
| | - Marialuisa Aragona
- Department of Veterinary Sciences, University of Messina, Viale dell'Annunziata, I-98168 Messina, Italy.
| | - Alessio Alesci
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres 31, I-98166 Messina, Italy
| | - Camila Cupello
- Departamento de Zoologia, Instituto de Biologia, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524, 20550-900, Rio de Janeiro, Brazil.
| | - Eugenia Rita Lauriano
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres 31, I-98166 Messina, Italy.
| | - Maria Cristina Guerrera
- Department of Veterinary Sciences, University of Messina, Viale dell'Annunziata, I-98168 Messina, Italy.
| | - Michal Kuciel
- Poison Information Centre, Department of Toxicology and Environmental Disease, Faculty of Medicine, Jagellonian University, Kopernika 15, 30-501 Krakòw, Poland.
| | - Kristina Zuwala
- Department of Comparative Anatomy, Institute of Zoology and Biomedical Researches, Faculty of Biology, Jagiellonian University in Krakow, Krakow, Poland.
| | - Antonino Germana
- Department of Veterinary Sciences, University of Messina, Viale dell'Annunziata, I-98168 Messina, Italy.
| | - Josè Manuel Icardo
- Department of Anatomy and Cell Biology, Poligono de Cazoña, Faculty of Medicine, University of Cantabria, Santander, Spain.
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Localization of BDNF and Calretinin in Olfactory Epithelium and Taste Buds of Zebrafish (Danio rerio). Int J Mol Sci 2022; 23:ijms23094696. [PMID: 35563087 PMCID: PMC9101965 DOI: 10.3390/ijms23094696] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/19/2022] [Accepted: 04/22/2022] [Indexed: 11/17/2022] Open
Abstract
Brain-derived neurotrophic factor (BDNF) is a member of the neurotrophin family and it is involved in several fundamental functions in the central and peripheral nervous systems, and in sensory organs. BDNF regulates the chemosensory systems of mammals and is consistently expressed in those organs. In zebrafish, the key role of BDNF in the biology of the hair cells of the inner ear and lateral line system has recently been demonstrated. However, only some information is available about its occurrence in the olfactory epithelium, taste buds, and cutaneous isolated chemosensory cells. Therefore, this study was undertaken to analyze the involvement of BDNF in the chemosensory organs of zebrafish during the larval and adult stages. To identify cells displaying BDNF, we compared the cellular pattern of BDNF-displaying cells with those immunoreactive for calretinin and S100 protein. Our results demonstrate the localization of BDNF in the sensory part of the olfactory epithelium, mainly in the ciliated olfactory sensory neurons in larvae and adult zebrafish. Intense immunoreaction for BDNF was also observed in the chemosensory cells of oral and cutaneous taste buds. Moreover, a subpopulation of olfactory sensory neurons and chemosensory cells of olfactory rosette and taste bud, respectively, showed marked immunopositivity for calcium-binding protein S100 and calretinin. These results demonstrate the possible role of BDNF in the development and maintenance of olfactory sensory neurons and sensory cells in the olfactory epithelium and taste organs of zebrafish during all stages of development.
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Aragona M, Porcino C, Guerrera MC, Montalbano G, Laurà R, Cometa M, Levanti M, Abbate F, Cobo T, Capitelli G, Vega JA, Germanà A. The BDNF/TrkB Neurotrophin System in the Sensory Organs of Zebrafish. Int J Mol Sci 2022; 23:ijms23052621. [PMID: 35269763 PMCID: PMC8910639 DOI: 10.3390/ijms23052621] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/21/2022] [Accepted: 02/25/2022] [Indexed: 12/15/2022] Open
Abstract
The brain-derived neurotrophic factor (BDNF) was discovered in the last century, and identified as a member of the neurotrophin family. BDNF shares approximately 50% of its amino acid with other neurotrophins such as NGF, NT-3 and NT-4/5, and its linear amino acid sequences in zebrafish (Danio rerio) and human are 91% identical. BDNF functions can be mediated by two categories of receptors: p75NTR and Trk. Intriguingly, BDNF receptors were highly conserved in the process of evolution, as were the other NTs’ receptors. In this review, we update current knowledge about the distribution and functions of the BDNF-TrkB system in the sensory organs of zebrafish. In fish, particularly in zebrafish, the distribution and functions of BDNF and TrkB in the brain have been widely studied. Both components of the system, associated or segregated, are also present outside the central nervous system, especially in sensory organs including the inner ear, lateral line system, retina, taste buds and olfactory epithelium.
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Affiliation(s)
- Marialuisa Aragona
- Zebrafish Neuromorphology Lab, Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy; (M.A.); (C.P.); (M.C.G.); (G.M.); (R.L.); (M.C.); (M.L.); (F.A.)
| | - Caterina Porcino
- Zebrafish Neuromorphology Lab, Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy; (M.A.); (C.P.); (M.C.G.); (G.M.); (R.L.); (M.C.); (M.L.); (F.A.)
| | - Maria Cristina Guerrera
- Zebrafish Neuromorphology Lab, Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy; (M.A.); (C.P.); (M.C.G.); (G.M.); (R.L.); (M.C.); (M.L.); (F.A.)
| | - Giuseppe Montalbano
- Zebrafish Neuromorphology Lab, Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy; (M.A.); (C.P.); (M.C.G.); (G.M.); (R.L.); (M.C.); (M.L.); (F.A.)
| | - Rosaria Laurà
- Zebrafish Neuromorphology Lab, Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy; (M.A.); (C.P.); (M.C.G.); (G.M.); (R.L.); (M.C.); (M.L.); (F.A.)
| | - Marzio Cometa
- Zebrafish Neuromorphology Lab, Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy; (M.A.); (C.P.); (M.C.G.); (G.M.); (R.L.); (M.C.); (M.L.); (F.A.)
| | - Maria Levanti
- Zebrafish Neuromorphology Lab, Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy; (M.A.); (C.P.); (M.C.G.); (G.M.); (R.L.); (M.C.); (M.L.); (F.A.)
| | - Francesco Abbate
- Zebrafish Neuromorphology Lab, Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy; (M.A.); (C.P.); (M.C.G.); (G.M.); (R.L.); (M.C.); (M.L.); (F.A.)
| | - Teresa Cobo
- Departamento de Cirugía y Especialidades Médico-Quirúrgicas, Universidad de Oviedo, 33006 Oviedo, Spain;
| | - Gabriel Capitelli
- Faculty of Medical Sciences, University of Buenos Aires, Viamonte 1053, CABA, Buenos Aires 1056, Argentina;
| | - José A. Vega
- Grupo SINPOS, Universidad de Oviedo, 33003 Oviedo, Spain;
- Departamento de Morfología y Biología Celular, Universidad de Oviedo, 33006 Oviedo, Spain
- Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Santiago 7500912, Chile
| | - Antonino Germanà
- Zebrafish Neuromorphology Lab, Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy; (M.A.); (C.P.); (M.C.G.); (G.M.); (R.L.); (M.C.); (M.L.); (F.A.)
- Correspondence:
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Bakhtogarimov IR, Kudryavtseva AV, Krasnov GS, Gladysh NS, Volodin VV, Kudryavtsev AA, Bulavkina EV, Goncharova MA, Ledyaeva VS, Pastukhov IS, Vershinina YS, Starkova AM, Snezhkina AV, Shuvalova AI, Pavlov VS, Nikiforov-Nikishin DL, Moskalev AA, Guvatova ZG. The Effect of Meclofenoxate on the Transcriptome of Aging Brain of Nothobranchius guentheri Annual Killifish. Int J Mol Sci 2022; 23:ijms23052491. [PMID: 35269638 PMCID: PMC8910246 DOI: 10.3390/ijms23052491] [Citation(s) in RCA: 3] [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: 01/12/2022] [Revised: 02/16/2022] [Accepted: 02/21/2022] [Indexed: 02/04/2023] Open
Abstract
Annual fish of the genus Nothobranchius are promising models for aging research. Nothobranchius reproduces typical aspects of vertebrate aging, including hallmarks of brain aging. Meclofenoxate (MF) is a well-known compound that can enhance cognitive performance. The drug is prescribed for asthenic conditions, trauma, and vascular diseases of the brain. It is believed that MF is able to delay age-dependent changes in the human brain. However, until now, there has been no study of the MF effect on the brain transcriptome. In the present work, we performed an RNA-Seq study of brain tissues from aged Nothobranchius guentheri, which were almost lifetime administered with MF, as well as young and aged control fish. As expected, in response to MF, we revealed significant overexpression of neuron-specific genes including genes involved in synaptic activity and plasticity, neurotransmitter secretion, and neuron projection. The effect was more pronounced in female fish. In this aspect, MF alleviated age-dependent decreased expression of genes involved in neuronal activity. In both treated and untreated animals, we observed strong aging-associated overexpression of immune and inflammatory response genes. MF treatment did not prevent this effect, and moreover, some of these genes tended to be slightly upregulated under MF treatment. Additionally, we noticed upregulation of some genes associated with aging and cellular senescence, including isoforms of putative vascular cell adhesion molecule 1 (VCAM1), protein O-GlcNAcase (OGA), protein kinase C alpha type (KPCA), prolow-density lipoprotein receptor-related protein 1 (LRP1). Noteworthy, MF treatment was also associated with the elevated transcription of transposons, which are highly abundant in the N. guentheri genome. In conclusion, MF compensates for the age-dependent downregulation of neuronal activity genes, but its effect on aging brain transcriptome still cannot be considered unambiguously positive.
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Affiliation(s)
- Ildar R. Bakhtogarimov
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (I.R.B.); (G.S.K.); (N.S.G.); (V.V.V.); (A.A.M.)
| | - Anna V. Kudryavtseva
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (I.R.B.); (G.S.K.); (N.S.G.); (V.V.V.); (A.A.M.)
- Correspondence: (A.V.K.); (Z.G.G.); Tel.: +7-(499)-135-23-91 (A.V.K. & Z.G.G.)
| | - George S. Krasnov
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (I.R.B.); (G.S.K.); (N.S.G.); (V.V.V.); (A.A.M.)
| | - Natalya S. Gladysh
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (I.R.B.); (G.S.K.); (N.S.G.); (V.V.V.); (A.A.M.)
| | - Vsevolod V. Volodin
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (I.R.B.); (G.S.K.); (N.S.G.); (V.V.V.); (A.A.M.)
| | - Alexander A. Kudryavtsev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (A.A.K.); (E.V.B.); (M.A.G.); (V.S.L.); (Y.S.V.); (A.M.S.); (A.V.S.); (A.I.S.); (V.S.P.)
| | - Elizaveta V. Bulavkina
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (A.A.K.); (E.V.B.); (M.A.G.); (V.S.L.); (Y.S.V.); (A.M.S.); (A.V.S.); (A.I.S.); (V.S.P.)
| | - Margarita A. Goncharova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (A.A.K.); (E.V.B.); (M.A.G.); (V.S.L.); (Y.S.V.); (A.M.S.); (A.V.S.); (A.I.S.); (V.S.P.)
| | - Veronika S. Ledyaeva
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (A.A.K.); (E.V.B.); (M.A.G.); (V.S.L.); (Y.S.V.); (A.M.S.); (A.V.S.); (A.I.S.); (V.S.P.)
| | - Ivan S. Pastukhov
- Institute of Biotechnology and Fisheries, K.G. Razumovsky Moscow State University of Technologies and Management (the First Cossack University), 109004 Moscow, Russia; (I.S.P.); (D.L.N.-N.)
| | - Yulia S. Vershinina
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (A.A.K.); (E.V.B.); (M.A.G.); (V.S.L.); (Y.S.V.); (A.M.S.); (A.V.S.); (A.I.S.); (V.S.P.)
| | - Anna M. Starkova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (A.A.K.); (E.V.B.); (M.A.G.); (V.S.L.); (Y.S.V.); (A.M.S.); (A.V.S.); (A.I.S.); (V.S.P.)
| | - Anastasiya V. Snezhkina
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (A.A.K.); (E.V.B.); (M.A.G.); (V.S.L.); (Y.S.V.); (A.M.S.); (A.V.S.); (A.I.S.); (V.S.P.)
| | - Anastasija I. Shuvalova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (A.A.K.); (E.V.B.); (M.A.G.); (V.S.L.); (Y.S.V.); (A.M.S.); (A.V.S.); (A.I.S.); (V.S.P.)
| | - Vladislav S. Pavlov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (A.A.K.); (E.V.B.); (M.A.G.); (V.S.L.); (Y.S.V.); (A.M.S.); (A.V.S.); (A.I.S.); (V.S.P.)
| | - Dmitry L. Nikiforov-Nikishin
- Institute of Biotechnology and Fisheries, K.G. Razumovsky Moscow State University of Technologies and Management (the First Cossack University), 109004 Moscow, Russia; (I.S.P.); (D.L.N.-N.)
| | - Alexey A. Moskalev
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (I.R.B.); (G.S.K.); (N.S.G.); (V.V.V.); (A.A.M.)
| | - Zulfiya G. Guvatova
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia; (I.R.B.); (G.S.K.); (N.S.G.); (V.V.V.); (A.A.M.)
- Correspondence: (A.V.K.); (Z.G.G.); Tel.: +7-(499)-135-23-91 (A.V.K. & Z.G.G.)
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Evaluation of Age-Dependent Changes in the Coloration of Male Killifish Nothobranchius Guentheri Using New Photoprocessing Methods. BIOLOGY 2022; 11:biology11020205. [PMID: 35205071 PMCID: PMC8869725 DOI: 10.3390/biology11020205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/25/2022] [Accepted: 01/26/2022] [Indexed: 11/23/2022]
Abstract
Simple Summary This paper proposes a new methodology for evaluating fish coloration, which allows us to identify differences in the intensity of coloration of specific areas of the body. Changes in fish coloration occur during growth and under the influence of environmental factors. Male fish belonging to the family Nothobranchius are characterized by extremely diverse coloration, depending on the age of the fish, environmental factors, and social hierarchical status. As the lifespan of this genus of fish is very short (12–14 months), studies on age-dependent changes are possible. In this study, we demonstrate correlations between the coloration of particular body zones of male Nothobranchius guentheri and age using new photofixation methods and image processing software. This methodology can be applied to other fish with unique coloration patterns, for example, family Cichlidae and order Cyprinodontiformes. Abstract Fish as model objects have found wide applications in biology and fundamental medicine and allow studies of behavioral and physiological responses to various environmental factors. Representatives of the genus Nothobranchius are one of the most convenient objects for such studies. Male fish belonging to the family Nothobranchiidae are characterized by extremely diverse coloration, which constantly changes, depending on the age of the fish, environmental factors, and social hierarchical status. These fish species are characterized by a short life cycle, which allows changes in coloration, an indicator of the ontogenesis stage, to be estimated. Existing methods of fish color assessments do not allow the intensity of coloration of particular body zones to be clearly differentiated. In the present study, we suggest a method of two-factor assessment of specific fish body zones using modified methods of photofixation and image processing software. We describe the protocol of the method and the results of its application to different-aged groups of male Nothobranchius guentheri. The coloration of selected areas (i.e., red spot on the gill cover (RSGC), black border on the caudal fin (BBCF), and white border on the dorsal fin (WBDF)) differed significantly according to the size and age of the fish (p < 0.05). The data obtained suggest that N. guentheri can be a model for studying aging by the intensity of body coloration in males.
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