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Vitrification of the ovarian tissue in sturgeons

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F23%3A43906203" target="_blank" >RIV/60076658:12520/23:43906203 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.1016/j.theriogenology.2022.11.009" target="_blank" >https://doi.org/10.1016/j.theriogenology.2022.11.009</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.theriogenology.2022.11.009" target="_blank" >10.1016/j.theriogenology.2022.11.009</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Vitrification of the ovarian tissue in sturgeons

  • Original language description

    The aim of this study was to test whether vitrification of sterlet Acipenser ruthenus and Russian sturgeon Acipenser gueldenstaedtii ovarian tissue through needle-immersed vitrification (NIV) is an efficient strategy for the preservation of oogonia (OOG) in order to supplement the current conservation efforts for these endangered fish species. Histological analyses of the gonads displayed that the ovaries of both species were immature and contained predominantly OOG and primary oocytes. The germline origin of these cells was verified by localization of the vasa protein through immunocytochemistry. NIV protocol was optimized by testing different equilibration (ES) and vitrification solutions (VS) containing various concentrations of dimethyl sulfoxide (Me2SO), propylene glycol (PG) or methanol (MeOH). In sterlet, the highest average viability (55.7 +/- 11.5%) was obtained by using a combination of 1.5 M PG and 1.5 M Me2SO in the ES, and 1.5 M MeOH and 5.5 M Me2SO in the VS. In Russian sturgeon, the highest average viability (49.4 +/- 17.1%) was obtained by using a combination of 1.5 M MeOH and 1.5 M Me2SO in the ES, and 3 M PG and 3 M Me2SO in the VS. To test whether vitrified/warmed OOG are functional, we have conducted an intra-specific transplantation assay to verify whether transplanted sterlet OOG will colo-nize the gonads of recipient fish. Fluorescently labelled cells were detected within recipient gonads at 2 and 3 months post-fertilization (mpf). Colonization rates of vitrified/warmed OOG (70% at 2 mpf and 61% at 3 mpf) were similar to those of fresh OOG (80% at 2 mpf and 70% at 3 mpf). This study has demon-strated that vitrification of ovarian tissue is an effective method for the preservation of OOG, and that the vitrified/warmed cells are functional and are able to colonize recipient gonads after transplantation similarly to the fresh cells. Since the vitrification procedure displayed in this study is simple and does not require complex and expensive laboratory equipment, it can be readily applied in field conditions, and therefore it can be invaluable for the conservation efforts of the critically endangered sturgeon species. However, care needs to be taken that despite the research conducted so far, donor-derived progeny was not yet obtained in sturgeons. (c) 2022 Elsevier Inc. All rights reserved.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10604 - Reproductive biology (medical aspects to be 3)

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2023

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Theriogenology

  • ISSN

    0093-691X

  • e-ISSN

    1879-3231

  • Volume of the periodical

    196

  • Issue of the periodical within the volume

    neuvedeno

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    7

  • Pages from-to

    18-24

  • UT code for WoS article

    000906903900003

  • EID of the result in the Scopus database

    2-s2.0-85141812963