High-Resolution 3D Reconstruction of Human Oocytes Using Focused Ion Beam Scanning Electron ...

@article{1809345,
   author = {Trebichalská, Zuzana and Javurek, Jakub and Tatíčková, Martina and Kyjovská, Drahomíra and Kloudová, Soňa and Otevrel, Pavel and Hampl, Aleš and Holubcová, Zuzana},
   article_location = {Lausanne},
   article_number = {November 2021},
   doi = {http://dx.doi.org/10.3389/fcell.2021.755740},
   keywords = {electron microscopy; FIB-SEM; volume microscopy; 3D ultrastructure; human oocyte; oocyte maturation},
   language = {eng},
   issn = {2296-634X},
   journal = {Frontiers in Cell and Developmental Biology},
   title = {High-Resolution 3D Reconstruction of Human Oocytes Using Focused Ion Beam Scanning Electron Microscopy},
   url = {https://www.frontiersin.org/articles/10.3389/fcell.2021.755740/full},
   volume = {9},
   year = {2021}
}

TY  - JOUR
ID  - 1809345
AU  - Trebichalská, Zuzana - Javurek, Jakub - Tatíčková, Martina - Kyjovská, Drahomíra - Kloudová, Soňa - Otevrel, Pavel - Hampl, Aleš - Holubcová, Zuzana
PY  - 2021
TI  - High-Resolution 3D Reconstruction of Human Oocytes Using Focused Ion Beam Scanning Electron Microscopy
JF  - Frontiers in Cell and Developmental Biology
VL  - 9
IS  - November 2021
SP  - 1-8
EP  - 1-8
PB  - Frontiers Media S.A.
SN  - 2296634X
KW  - electron microscopy
KW  - FIB-SEM
KW  - volume microscopy
KW  - 3D ultrastructure
KW  - human oocyte
KW  - oocyte maturation
UR  - https://www.frontiersin.org/articles/10.3389/fcell.2021.755740/full
N2  - The egg plays a pivotal role in the reproduction of our species. Nevertheless, its fundamental biology remains elusive. Transmission electron microscopy is traditionally used to inspect the ultrastructure of female gametes. However, two-dimensional micrographs contain only fragmentary information about the spatial organization of the complex oocyte cytoplasm. Here, we employed the Focused Ion Beam Scanning Electron Microscopy (FIB-SEM) to explore human oocyte intracellular morphology in three dimensions (3D). Volume reconstruction of generated image stacks provided an unprecedented view of ooplasmic architecture. Organelle distribution patterns observed in nine donor oocytes, representing three maturational stages, documented structural changes underlying the process by which the egg acquires developmental competence. 3D image segmentation was performed to extract information about distinct organelle populations, and the following quantitative analysis revealed that the mitochondrion occupies similar to 4.26% of the maturing oocyte cytoplasm. In summary, this proof-of-concept study demonstrates the potential of large volume electron microscopy to study rare samples of delicate female gametes and paves the way for applying the FIB-SEM technique in human oocyte research.
ER  - 

TREBICHALSKÁ, Zuzana, Jakub JAVUREK, Martina TATÍČKOVÁ, Drahomíra KYJOVSKÁ, Soňa KLOUDOVÁ, Pavel OTEVREL, Aleš HAMPL and Zuzana HOLUBCOVÁ. High-Resolution 3D Reconstruction of Human Oocytes Using Focused Ion Beam Scanning Electron Microscopy. \textit{Frontiers in Cell and Developmental Biology}. Lausanne: Frontiers Media S.A., 2021, vol.~9, November 2021, p.~1-8. ISSN~2296-634X. Available from: https://dx.doi.org/10.3389/fcell.2021.755740.