Functional Adaptations of Hemocytes of Aplysia depilans (Gmelin, 1791) and Their Putative Role in Neuronal Regeneration

Fishes, Journal Year: 2024, Volume and Issue: 9(1), P. 32 - 32

Published: Jan. 11, 2024

Invertebrates show great diversity in their responses to neural damage. Numerous invertebrate phyla, including gastropods, can replace all or a portion of nervous systems. Aplysia species have been utilized extensively toxicology, ecology, and neuroscience because neurological systems react bodily harm by releasing trophic substances that stimulate non-neural tissue regeneration induce changes the system. This study aims assess putative role hemocytes depilans (Gmelin, 1791) analyzing presence Toll-like receptor 2, inducible nitric oxide synthetase, and, particular, vimentin α-tubulin, molecules potentially implicated process regeneration. The results demonstrate aforementioned proteins are present hemocytes, suggesting defense response possible contribution neuronal this gastropod. These data provide deeper insight into internal system mollusk.

Language: Английский

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Internal Defense System of Mytilus galloprovincialis (Lamarck, 1819): Ecological Role of Hemocytes as Biomarkers for Thiacloprid and Benzo[a]Pyrene Pollution

Toxics, Journal Year: 2023, Volume and Issue: 11(9), P. 731 - 731

Published: Aug. 25, 2023

The introduction of pollutants, such as thiacloprid and benzo[a]pyrene (B[a]P), into the waters urbanized coastal estuarine areas through fossil fuel spills, domestic industrial waste discharges, atmospheric inputs, continental runoff poses a major threat to fauna flora aquatic environment can have significant impact on internal defense system invertebrates mussels. Using monoclonal polyclonal anti-Toll-like receptor 2 (TLR2) anti-inducible nitric oxide synthetase (iNOS) antibodies for first time, this work aims examine hemocytes in mantle gills M. galloprovincialis biomarkers B[a]P pollution analyze their potential synergistic effect. To pursue objective, samples were exposed both individually simultaneously. Subsequently, oxidative stress evaluated by enzymatic analysis, while tissue changes number different contaminated groups assessed via histomorphological immunohistochemical analyses. Our findings revealed that comparison single exposure, two pollutants together significantly elevated stress. Moreover, our data may potentially enhance knowledge how TLR2 iNOS part bivalves. This would help creating new technologies strategies, biosensors, are more suitable managing water pollution, garnering details condition marine ecosystem.

Language: Английский

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Evolution of snake skin: Role of cutaneous tactile corpuscles in Hierophis viridiflavus (Lacépède, 1789)

Acta Zoologica, Journal Year: 2024, Volume and Issue: 106(1), P. 88 - 99

Published: March 18, 2024

Abstract The skin of snakes acts as the first interface between these reptiles and environment they live in. It plays an important role in ecology organisms, specialised structures, such tactile corpuscles, are crucial sensing a wide variety stimuli. This study, by examining presence, localisation colocalisation serotonin, substance P, PGP 9.5 tubulin, wants to demonstrate sensory that structures play Green whip snake Hierophis viridiflavus (Lacépède, 1789). study presents evaluation nerve immune molecules (TLR2) corpuscles H. viridiflavius ventral skin, indicating potential defence structures. These findings provide valuable information on snakes, their systems, evolutionary morphostructural adaptations. Additionally, identification could support for taxonomic recognition. Furthermore, this expands knowledge about stimuli snakes.

Language: Английский

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Mechanosensory cells in annelid oligochaete Lumbricus terrestris (Linnaeus, 1758): A new insight on worm evolution

Acta Zoologica, Journal Year: 2023, Volume and Issue: 105(3), P. 331 - 339

Published: June 18, 2023

Abstract Ciliated and non‐ciliated mechanosensory cells in invertebrates have intricate cytoskeletal structures that, combined with microtubules, act as a mechanical link between external stimulus signal processing. As result, they can perceive forces like touch, cuticle deformation, gravity sound. Through the expression of antibodies against serotonin (5‐HT), calbindin, inducible nitric oxide synthase (iNOS) α‐smooth muscle actin (αSMA), this research aims to investigate integument Lumbricus terrestris (Linnaeus, 1758) an evolutionary perspective. In epidermis, we discovered isolated that were immunopositive every antibody examined. Our findings improve knowledge evolution annelid sensory biology adding new insights on transduction help better understand morpho‐structural adaptations invertebrate skin scale give more taxonomic data for species distinction.

Language: Английский

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Immunohistochemistry of the nasal cavity‐associated lymphoid tissue in the dolphin (Stenella coeruleoalba, Meyen 1833)

Microscopy Research and Technique, Journal Year: 2024, Volume and Issue: 87(9), P. 2103 - 2112

Published: April 29, 2024

Abstract The striped dolphin ( Stenella coeruleoalba ) is a medium‐sized pelagic with single external nasal opening (blowhole) located in the rostral and dorsal regions of skull. cavity divided into three sections: olfactory, respiratory, vestibular areas. surface epithelium lining regio vestibularis first tissue nose to be directly affected by environmental antigens. Cetaceans have significant amount mucosa‐associated lymphoid (MALT) throughout their bodies. found mucosa known as nose‐ or nasopharynx‐associated (NALT). NALT has not yet been studied dolphins, but it identified documented humans laboratory rodents. This study utilized toll‐like receptor 2 (TLR2), CD4, Langerin/CD207, inducible nitric oxide synthase characterize, for time, immune cells mucosal S . using confocal microscopy immunofluorescence techniques. findings revealed scattered immunoreactive tested antibodies, present both epithelial vestibulum underlying connective tissue. enhances our comprehension system cetaceans. Research Highlights provides new insights research deepens knowledge skin

Language: Английский

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