Persistent and reparative neurogenesis in the juvenile masu salmon Oncorhynchus masou telencephalon after mechanical injury
- Авторы: Pushchina E.1, Zharikova E.2, Varaksin A.1
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Учреждения:
- National Scientific Center of Marine Biology, Far Eastern Branch
- Far Eastern Federal University
- Выпуск: Том 48, № 5 (2017)
- Страницы: 307-320
- Раздел: Mechanisms of Cell Proliferation and Differentiation
- URL: https://journals.rcsi.science/1062-3604/article/view/183649
- DOI: https://doi.org/10.1134/S106236041705006X
- ID: 183649
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Аннотация
A superficially located periventricular proliferative area with PCNA-immunopositive (PCNA+) cells, which corresponds to the pallial periventricular zone (PVZ) of other fish species, including its dorsal, lateral, and medial compartments, is discovered in the telencephalon of the juvenile masu salmon Oncorhynchus masou. The PCNA+ cells are also identified in the parenchyma of the masu salmon intact brain, and their maximum concentration is observed in the medial zone. After a mechanical injury, the zones of induced neurogenesis—neurogenic niches and sites of secondary neurogenesis surrounded by radial glial fibers—appear in the masu salmon telencephalon. The PVZ of the juvenile masu salmon pallium contains clusters of undifferentiated HuCD-immunopositive (HuCD+) neurons. A change in the HuCD+ cell topography is observed in the mechanically injured masu salmon telencephalon, namely, neurogenic niches in the lateral zone and an increase in the cell distribution density and cell migration patterns in the medial zone. A high level of persistent neurogenesis is characteristic of the juvenile masu salmon brain.
Об авторах
E. Pushchina
National Scientific Center of Marine Biology, Far Eastern Branch
Автор, ответственный за переписку.
Email: puschina@mail.ru
Россия, Vladivostok, 690041
E. Zharikova
Far Eastern Federal University
Email: puschina@mail.ru
Россия, Vladivostok, 690025
A. Varaksin
National Scientific Center of Marine Biology, Far Eastern Branch
Email: puschina@mail.ru
Россия, Vladivostok, 690041