Name: Fluxo de trabalho de criotomografia eletrônica para tecidos espessos demonstrado em hipocampo de camundongos (Vídeo) | JoVE Journal
Uploaded: 2026-03-27T14:30:00.000+00:00
Duration: 10 min 6 s
Description: Aprenda um fluxo de trabalho padronizado de criotomografia eletrônica para tecidos espessos, demonstrado no hipocampo de camundongos. Este protocolo integra congelamento por alta pressão, fresagem por feixe de íons e análise estrutural in situ de alta resolução.

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<ol><li>Young, L. N., Villa, E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Bringing+structure+to+cell+biology+with+cryo-electron+tomography%5BTitle%5D)+AND+%22Annu+Rev+Biophys%22%5BJournal%5D)">Bringing structure to cell biology with cryo-electron tomography.</a> Annu Rev Biophys. 52 (1), 573-595 (2023).</li>
<li>Baumeister, W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Cryo-electron+tomography%3A+A+long+journey+to+the+inner+space+of+cells%5BTitle%5D)+AND+%22Cell%22%5BJournal%5D)">Cryo-electron tomography: A long journey to the inner space of cells.</a> Cell. 185 (15), 2649-2652 (2022).</li>
<li>Hong, Y., Song, Y., Zhang, Z., Li, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Cryo-electron+tomography%3A+The+resolution+revolution+and+a+surge+of+in+situ+virological+discoveries%5BTitle%5D)+AND+%22Annu+Rev+Biophys%22%5BJournal%5D)">Cryo-electron tomography: The resolution revolution and a surge of in situ virological discoveries.</a> Annu Rev Biophys. 52 (1), 339-360 (2023).</li>
<li>Nogales, E., Mahamid, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Bridging+structural+and+cell+biology+with+cryo-electron+microscopy%5BTitle%5D)+AND+%22Nature%22%5BJournal%5D)">Bridging structural and cell biology with cryo-electron microscopy.</a> Nature. 628 (8006), 47-56 (2024).</li>
<li>Schur, F. K. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Toward+high-resolution+in+situ+structural+biology+with+cryo-electron+tomography+and+subtomogram+averaging%5BTitle%5D)+AND+%22Curr+Opin+Struct+Biol%22%5BJournal%5D)">Toward high-resolution in situ structural biology with cryo-electron tomography and subtomogram averaging.</a> Curr Opin Struct Biol. 58, 1-9 (2019).</li>
<li>Briggs, J. A. G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Structural+biology+in+situ%E2%80%94the+potential+of+subtomogram+averaging%5BTitle%5D)+AND+%22Curr+Opin+Struct+Biol%22%5BJournal%5D)">Structural biology in situ—the potential of subtomogram averaging.</a> Curr Opin Struct Biol. 23 (2), 261-267 (2013).</li>
<li>Berger, C., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Cryo-electron+tomography+on+focused+ion+beam+lamellae+transforms+structural+cell+biology%5BTitle%5D)+AND+%22Nat+Methods%22%5BJournal%5D)">Cryo-electron tomography on focused ion beam lamellae transforms structural cell biology.</a> Nat Methods. 20 (4), 499-511 (2023).</li>
<li>McCafferty, C. L., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Integrating+cellular+electron+microscopy+with+multimodal+data+to+explore+biology+across+space+and+time%5BTitle%5D)+AND+%22Cell%22%5BJournal%5D)">Integrating cellular electron microscopy with multimodal data to explore biology across space and time.</a> Cell. 187 (3), 563-584 (2024).</li>
<li>Pöge, M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Making+plant+tissue+accessible+for+cryo-electron+tomography%5BTitle%5D)+AND+%22Elife%22%5BJournal%5D)">Making plant tissue accessible for cryo-electron tomography.</a> Elife. 106455, 1-41 (2025).</li>
<li>Bäuerlein, F. J. B., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Cryo-electron+tomography+of+large+biological+specimens+vitrified+by+plunge+freezing%5BTitle%5D)+AND+%22Preprint.+bioRxiv%22%5BJournal%5D)">Cryo-electron tomography of large biological specimens vitrified by plunge freezing.</a> Preprint. bioRxiv. , (2023).</li>
<li>Creekmore, B. C., Kixmoeller, K., Black, B. E., Lee, E. B., Chang, Y. -W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Ultrastructure+of+human+brain+tissue+vitrified+from+autopsy+revealed+by+cryo-ET+with+cryo-plasma+fib+milling%5BTitle%5D)+AND+%22Nat+Commun%22%5BJournal%5D)">Ultrastructure of human brain tissue vitrified from autopsy revealed by cryo-ET with cryo-plasma fib milling.</a> Nat Commun. 15 (1), 2660(2024).</li>
<li>Chen, Z., Guo, Q. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Innovations+in+cryo-electron+tomography+for+tissues%3A+Challenges+and+future+prospects%5BTitle%5D)+AND+%22Curr+Opin+Struct+Biol%22%5BJournal%5D)">Innovations in cryo-electron tomography for tissues: Challenges and future prospects.</a> Curr Opin Struct Biol. 93, 103112(2025).</li>
<li>Dubochet, J., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Cryo-electron+microscopy+of+vitrified+specimens%5BTitle%5D)+AND+%22Q+Rev+Biophys%22%5BJournal%5D)">Cryo-electron microscopy of vitrified specimens.</a> Q Rev Biophys. 21 (2), 129-228 (2009).</li>
<li>Matsui, A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Cryo-electron+tomographic+investigation+of+native+hippocampal+glutamatergic+synapses%5BTitle%5D)+AND+%22Elife%22%5BJournal%5D)">Cryo-electron tomographic investigation of native hippocampal glutamatergic synapses.</a> Elife. 13, RP98458(2024).</li>
<li>Ning, J., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Uncovering+synaptic+and+cellular+nanoarchitecture+of+brain+tissue+via+seamless+in+situ+trimming+and+milling+for+cryo-electron+tomography%5BTitle%5D)+AND+%22Preprint.+bioRxiv%22%5BJournal%5D)">Uncovering synaptic and cellular nanoarchitecture of brain tissue via seamless in situ trimming and milling for cryo-electron tomography.</a> Preprint. bioRxiv. , (2025).</li>
<li>Zhang, J., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Vhut-cryo-fib%2C+a+method+to+fabricate+frozen+hydrated+lamellae+from+tissue+specimens+for+in+situ+cryo-electron+tomography%5BTitle%5D)+AND+%22J+Struct+Biol%22%5BJournal%5D)">Vhut-cryo-fib, a method to fabricate frozen hydrated lamellae from tissue specimens for in situ cryo-electron tomography.</a> J Struct Biol. 213 (3), 107763(2021).</li>
<li>Glynn, C., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((A+generalizable+and+targeted+molecular+biopsy+approach+for+in+situ+cryogenic+electron+tomography+of+vitreous+brain+tissue%5BTitle%5D)+AND+%22Cell+Rep+Methods%22%5BJournal%5D)">A generalizable and targeted molecular biopsy approach for in situ cryogenic electron tomography of vitreous brain tissue.</a> Cell Rep Methods. 5 (7), 101080(2025).</li>
<li>Kelley, K., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Waffle+method%3A+A+general+and+flexible+approach+for+improving+throughput+in+fib-milling%5BTitle%5D)+AND+%22Nat+Commun%22%5BJournal%5D)">Waffle method: A general and flexible approach for improving throughput in fib-milling.</a> Nat Commun. 13 (1), 1857(2022).</li>
<li>Pierson, J., Ziese, U., Sani, M., Peters, P. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Exploring+vitreous+cryo-section-induced+compression+at+the+macromolecular+level+using+electron+cryo-tomography%3B+80s+yeast+ribosomes+appear+unaffected%5BTitle%5D)+AND+%22J+Struct+Biol%22%5BJournal%5D)">Exploring vitreous cryo-section-induced compression at the macromolecular level using electron cryo-tomography; 80s yeast ribosomes appear unaffected.</a> J Struct Biol. 173 (2), 345-349 (2011).</li>
<li>Alamoudi, A., Studer, D., Dubochet, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Cutting+artefacts+and+cutting+process+in+vitreous+sections+for+cryo-electron+microscopy%5BTitle%5D)+AND+%22J+Struct+Biol%22%5BJournal%5D)">Cutting artefacts and cutting process in vitreous sections for cryo-electron microscopy.</a> J Struct Biol. 150 (1), 109-121 (2005).</li>
<li>Rigort, A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Focused+ion+beam+micromachining+of+eukaryotic+cells+for+cryoelectron+tomography%5BTitle%5D)+AND+%22Proc+Natl+Acad+Sci+U+S+A%22%5BJournal%5D)">Focused ion beam micromachining of eukaryotic cells for cryoelectron tomography.</a> Proc Natl Acad Sci U S A. 109 (12), 4449-4454 (2012).</li>
<li>Mahamid, J., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((A+focused+ion+beam+milling+and+lift-out+approach+for+site-specific+preparation+of+frozen-hydrated+lamellas+from+multicellular+organisms%5BTitle%5D)+AND+%22J+Struct+Biol%22%5BJournal%5D)">A focused ion beam milling and lift-out approach for site-specific preparation of frozen-hydrated lamellas from multicellular organisms.</a> J Struct Biol. 192 (2), 262-269 (2015).</li>
<li>Marko, M., Hsieh, C., Schalek, R., Frank, J., Mannella, C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Focused-ion-beam+thinning+of+frozen-hydrated+biological+specimens+for+cryo-electron+microscopy%5BTitle%5D)+AND+%22Nat+Methods%22%5BJournal%5D)">Focused-ion-beam thinning of frozen-hydrated biological specimens for cryo-electron microscopy.</a> Nat Methods. 4 (3), 215-217 (2007).</li>
<li>Engel, B. D., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Native+architecture+of+the+Chlamydomonas+chloroplast+revealed+by+in+situ+cryo-electron+tomography%5BTitle%5D)+AND+%22Elife%22%5BJournal%5D)">Native architecture of the Chlamydomonas chloroplast revealed by in situ cryo-electron tomography.</a> Elife. 4, e04889(2015).</li>
<li>Hayles, M. F., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((The+making+of+frozen-hydrated%2C+vitreous+lamellas+from+cells+for+cryo-electron+microscopy%5BTitle%5D)+AND+%22J+Struct+Biol%22%5BJournal%5D)">The making of frozen-hydrated, vitreous lamellas from cells for cryo-electron microscopy.</a> J Struct Biol. 172 (2), 180-190 (2010).</li>
<li>Rubino, S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((A+site-specific+focused-ion-beam+lift-out+method+for+cryo+transmission+electron+microscopy%5BTitle%5D)+AND+%22J+Struct+Biol%22%5BJournal%5D)">A site-specific focused-ion-beam lift-out method for cryo transmission electron microscopy.</a> J Struct Biol. 180 (3), 572-576 (2012).</li>
<li>Schiøtz, O. H., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Serial+lift-out%3A+Sampling+the+molecular+anatomy+of+whole+organisms%5BTitle%5D)+AND+%22Nat+Methods%22%5BJournal%5D)">Serial lift-out: Sampling the molecular anatomy of whole organisms.</a> Nat Methods. 21 (9), 1684-1692 (2023).</li>
<li>Nguyen, H. T. D., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Serialized+on-grid+lift-in+sectioning+for+tomography+%28solist%29+enables+a+biopsy+at+the+nanoscale%5BTitle%5D)+AND+%22Nat+Methods%22%5BJournal%5D)">Serialized on-grid lift-in sectioning for tomography (solist) enables a biopsy at the nanoscale.</a> Nat Methods. 21 (9), 1693-1701 (2024).</li>
<li>Tang, X., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Step-by-step+procedure+for+an+optimized+serial+lift-out+cryo-focused+ion+beam+milling+technique+in+tissue+analysis%5BTitle%5D)+AND+%22Biophys+Rep%22%5BJournal%5D)">Step-by-step procedure for an optimized serial lift-out cryo-focused ion beam milling technique in tissue analysis.</a> Biophys Rep. 11, 1-13 (2025).</li>
<li>Wolff, G., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Mind+the+gap%3A+Micro-expansion+joints+drastically+decrease+the+bending+of+fib-milled+cryo-lamellae%5BTitle%5D)+AND+%22J+Struct+Biol%22%5BJournal%5D)">Mind the gap: Micro-expansion joints drastically decrease the bending of fib-milled cryo-lamellae.</a> J Struct Biol. 208 (3), 107389(2019).</li>
<li>Berger, C., Watson, H., Naismith, J. H., Dumoux, M., Grange, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Xenon+plasma+focused+ion+beam+lamella+fabrication+on+high-pressure+frozen+specimens+for+structural+cell+biology%5BTitle%5D)+AND+%22Nat+Commun%22%5BJournal%5D)">Xenon plasma focused ion beam lamella fabrication on high-pressure frozen specimens for structural cell biology.</a> Nat Commun. 16 (1), 2286(2025).</li>
<li>Eisenstein, F., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Parallel+cryo+electron+tomography+on+in+situ+lamellae%5BTitle%5D)+AND+%22Nat+Methods%22%5BJournal%5D)">Parallel cryo electron tomography on in situ lamellae.</a> Nat Methods. 20 (1), 131-138 (2022).</li>
<li>Peck, A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Aretomolive%3A+Automated+reconstruction+of+comprehensively-corrected+and+denoised+cryo-electron+tomograms+in+real-time+and+at+high+throughput%5BTitle%5D)+AND+%22Preprint.+bioRxiv%22%5BJournal%5D)">Aretomolive: Automated reconstruction of comprehensively-corrected and denoised cryo-electron tomograms in real-time and at high throughput.</a> Preprint. bioRxiv. , (2025).</li>
<li>Liu, Y. -T., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Isotropic+reconstruction+for+electron+tomography+with+deep+learning%5BTitle%5D)+AND+%22Nat+Commun%22%5BJournal%5D)">Isotropic reconstruction for electron tomography with deep learning.</a> Nat Commun. 13 (1), 6482(2022).</li>
<li>Chen, M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((A+complete+data+processing+workflow+for+cryo-ET+and+subtomogram+averaging%5BTitle%5D)+AND+%22Nat+Methods%22%5BJournal%5D)">A complete data processing workflow for cryo-ET and subtomogram averaging.</a> Nat Methods. 16 (11), 1161-1168 (2019).</li>
<li>Yang, Q., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((The+reduction+of+fib+damage+on+cryo-lamella+by+lowering+energy+of+ion+beam+revealed+by+a+quantitative+analysis%5BTitle%5D)+AND+%22Structure%22%5BJournal%5D)">The reduction of fib damage on cryo-lamella by lowering energy of ion beam revealed by a quantitative analysis.</a> Structure. 31 (10), 1275-1281.e4 (2023).</li>
<li>Tacke, S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((A+streamlined+workflow+for+automated+cryo+focused+ion+beam+milling%5BTitle%5D)+AND+%22J+Struct+Biol%22%5BJournal%5D)">A streamlined workflow for automated cryo focused ion beam milling.</a> J Struct Biol. 213 (3), 107743(2021).</li>
<li>Boltje, D. B., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((A+cryogenic%2C+coincident+fluorescence%2C+electron%2C+and+ion+beam+microscope%5BTitle%5D)+AND+%22Elife%22%5BJournal%5D)">A cryogenic, coincident fluorescence, electron, and ion beam microscope.</a> Elife. 11, e82891(2022).</li>
<li>Yang, J., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Integrated+fluorescence+microscopy+%28IFLM%29+for+cryo-fib-milling+and+in-situ+cryo-ET%5BTitle%5D)+AND+%22Preprint.+bioRxiv%22%5BJournal%5D)">Integrated fluorescence microscopy (IFLM) for cryo-fib-milling and in-situ cryo-ET.</a> Preprint. bioRxiv. , (2023).</li>
<li>Li, S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Eli+trifocal+microscope%3A+A+precise+system+to+prepare+target+cryo-lamellae+for+in+situ+cryo-ET+study%5BTitle%5D)+AND+%22Nat+Methods%22%5BJournal%5D)">Eli trifocal microscope: A precise system to prepare target cryo-lamellae for in situ cryo-ET study.</a> Nat Methods. 20 (2), 276-283 (2023).</li>
<li>Medeiros, J. M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Robust+workflow+and+instrumentation+for+cryo-focused+ion+beam+milling+of+samples+for+electron+cryotomography%5BTitle%5D)+AND+%22Ultramicroscopy%22%5BJournal%5D)">Robust workflow and instrumentation for cryo-focused ion beam milling of samples for electron cryotomography.</a> Ultramicroscopy. 190, 1-11 (2018).</li>
<li>Goetz, S. K., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((A+modular+platform+for+automated+cryo-fib+workflows%5BTitle%5D)+AND+%22Elife%22%5BJournal%5D)">A modular platform for automated cryo-fib workflows.</a> Elife. 10, e70506(2021).</li>
<li>Eisenstein, F., Fukuda, Y., Danev, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Smart+parallel+automated+cryo-electron+tomography%5BTitle%5D)+AND+%22Nat+Methods%22%5BJournal%5D)">Smart parallel automated cryo-electron tomography.</a> Nat Methods. 21 (9), 1612-1615 (2024).</li>
<li>Swulius, M. T., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Deep+learning-based+segmentation+of+cryo-electron+tomograms%5BTitle%5D)+AND+%22J+Vis+Exp%22%5BJournal%5D)">Deep learning-based segmentation of cryo-electron tomograms.</a> J Vis Exp. (189), e64435(2022).</li>
</ol>

<table><tbody><tr><td>1-Hexadeceno</td><td>Sigma-Aldrich</td><td>H2131</td><td>Produtos químicos e Reagentes</td></tr><tr><td>2-Metilpentano</td><td>Sigma-Aldrich</td><td>M65807</td><td>Produtos químicos e Reagentes</td></tr><tr><td>Anel de clipe</td><td>Thermo Fisher Scientific</td><td>1131750; 1188953</td><td>Consumíveis</td></tr><tr><td>Folha de cobre</td><td>Materiais Metálicos Fengcheng</td><td>1 & micro; M espessura</td><td>Consumíveis</td></tr><tr><td>Suporte de cobre TEM Grids (100 malhas)</td><td>Beijing Zhongjingkeyi Technology Co., Ltd</td><td>BZ10021b</td><td>Consumíveis</td></tr><tr><td>Cryo-EM</td><td>Thermo Fisher Scientific</td><td>Krios G4</td><td>Equipamentos&nbsp;</td></tr><tr><td>Crio-FIB</td><td>Thermo Fisher Scientific</td><td>Aquilos 2</td><td>Equipamentos&nbsp;</td></tr><tr><td>Autograde Crio-FIB</td><td>Thermo Fisher Scientific</td><td>1205101</td><td>Consumíveis</td></tr><tr><td>Grades (UltrAufoil R 1.2/1.3 300 mesh)</td><td>Quantifoil</td><td>AltrAufoil</td><td>Consumíveis</td></tr><tr><td>Freezer de Alta Pressão</td><td>Leica Microsystems</td><td>EM ICE</td><td>Equipamentos&nbsp;</td></tr><tr><td>Transportadora HPF, cobre</td><td>Leica Microsystems</td><td>tipo B (6 mm)</td><td>Consumíveis</td></tr><tr><td>Revestimento de Íon Sputter</td><td>Quórum</td><td>Q150RS plus</td><td>Equipamentos&nbsp;</td></tr><tr><td>Pasta de polimento metalográfica</td><td>Lab-testec</td><td>W0.5</td><td>Consumíveis</td></tr><tr><td>Polimento de tecido</td><td>GORAL</td><td>B00809</td><td>Consumíveis</td></tr><tr><td>Lixa</td><td>Lixa da Marca Eagle</td><td>8000 grão, 12000</td><td>Consumíveis</td></tr><tr><td>Estereoscópio</td><td>Leica Microsystems</td><td>S9i</td><td><um nome="RANGE!" D17">Equipamentos&nbsp; </a></td></tr><tr><td>Sacarose</td><td>Sigma-Aldrich</td><td>200-334-9</td><td>Produtos químicos e Reagentes</td></tr><tr><td>Software de Aquisição da Série Tilt</td><td>https://bio3d.colorado.edu/SerialEM/</td><td>SerialEM 4.0.9</td><td>Software</td></tr><tr><td>Alinhamento e Alinhamento da Série Tilt Software de Reconstrução</td><td>https://github.com/czimaginginstitute/AreTomo3&nbsp;</td><td>AreTomo 3</td><td>Software</td></tr><tr><td>Software de Aquisição da Série Tilt</td><td>https://github.com/eisfabian/PACEtomo</td><td>PaceTomo</td><td>Software</td></tr><tr><td>Alinhamento e Alinhamento da Série Tilt Software de Reconstrução</td><td>https://github.com/IsoNet-cryoET/IsoNet</td><td>IsoNet</td><td>Software</td></tr><tr><td>Alinhamento e Alinhamento da Série Tilt Software de Reconstrução</td><td>https://github.com/cryoem/eman2</td><td>EMAN2</td><td>Software</td></tr><tr><td>Alinhamento e Alinhamento da Série Tilt Software de Reconstrução</td><td>https://relion.readthedocs.io/en/release-4.0/index.html</td><td>Relion 4</td><td>Software</td></tr></tbody></table>

fluxo de trabalho de criotomografia eletrônica para tecidos espessos demonstrado em hipocampo de camundongos

Cryo-Electron Tomography Workflow for Thick Tissues Demonstrated in Mouse Hippocampus

Fluxo de trabalho de criotomografia eletrônica para tecidos espessos demonstrado em hipocampo de camundongos

Cryo&#8209;electron tomography (cryo&#8209;ET) enables 3D visualization of native cellular ultrastructure, but its application to thick tissues is limited ...

cryo-electron-tomography-workflow-for-thick-tissues-demonstrated

Research

JoVE Journal

Neuroscience

Neurociência

Demonstrado neste vídeo são as técnicas de congelamento instantâneo e secção tecido cerebral embrionário de rato. Dicas úteis para usar o criostato são dadas, incluindo métodos de solução de problemas que podem ser usados ​​durante o corte para garantir que as seções resultantes tecidos estão livres de rachaduras e outras distorções.

Flash Freezing e Cryosectioning E12.5 cérebro de camundongo

Aqui nós descrevemos um método rápido e simples de células de imagem fluorescente etiquetado em fatias grossas semi-cérebro. Através da fixação, corte, limpeza e opticamente tecido cerebral descrevemos como imagens de epifluorescência ou confocal padrão pode ser usado para visualizar as células individuais e redes neuronal no tecido nervoso intacto.

Uma abordagem rápida para alta resolução de imagem de fluorescência em fatias grossas Semi-Cérebro

Neste vídeo, demonstramos o seccionamento de um tecido tumoral cerebral de camundongo congelado usando um criostato. As seções de tecido cerebral congeladas assim obtidas são armazenadas em baixas temperaturas até uma análise posterior.

Seccionamento de tecido cerebral de camundongo congelado: um procedimento para obter seções finas de tecido congelado de tecido cerebral murino congelado

Para preservar processos neuronais para análise ultra-estrutural, nós descrevemos um protocolo para revestimento dos neurônios primários em grades de microscopia eletrônica seguido de congelamento flash, rendendo amostras suspensas em uma camada de gelo vítreo. Essas amostras podem ser examinadas com um microscópio crio-eletrônico para visualizar estruturas em escala nanométrica.

Preparação de primário neurônios para visualizar Neuritos num Estado Frozen-hidratado Usando Cryo-Electron Tomografia

Aqui, é apresentado um protocolo descrevendo as etapas de preparação da amostra e coleta de dados necessárias na tomografia criobada de raios-X (SXT) para a imagem da ultraestrutura de células inteiras preservadas de crio-preservo em uma resolução de 25 nm meio passo.

Uma descrição cartográfica 3D da célula por crioma tomografia de raios-X suave

Usando fresagem por feixe de íons focalizado para produzir lamelas vítreas on-grid a partir de amostras biológicas congeladas por imersão para tomografia crio-eletrônica.

Preparação de Lamelas a partir de Amostras Biológicas Vítreas Usando um Microscópio Eletrônico de Varredura de Feixe Duplo para Tomografia Crio-Eletrônica

Apresentamos um protocolo para a preparação de lamella de espécimes biológicos congelados por micromaquingia de feixe de íons focado em crio-pia para estudos estruturais de alta resolução de macromoléculas in situ com tomografia crio-elétron. O protocolo apresentado fornece diretrizes para a preparação de lamellae de alta qualidade com alta reprodutibilidade para caracterização estrutural de macromoléculas dentro do Saccharomyces cerevisiae.

Preparação e micromaquinção Crio-FIB de Saccharomyces cerevisiae para Tomografia Crio-Elétron

A crescente demanda por coleta de dados em larga escala na tomografia criogênica de elétrons requer rotinas de aquisição de imagens de alto rendimento. Descrito aqui é um protocolo que implementa os recentes desenvolvimentos de estratégias avançadas de aquisição que visam maximizar o tempo-eficiência e o throughput da coleta de dados tomográficos.

Estratégias de Otimização da Aquisição de Dados de Tomografia Eletrônica Criogênica

A tomografia crio-STEM fornece um meio de visualizar organelas de células intactas sem incorporação, seccionamento ou outras preparações invasivas. A resolução 3D obtida está atualmente na faixa de poucos nanômetros, com um campo de visão de vários micrômetros e uma espessura acessível na ordem de 1 μm.

Visualização de Organelas In Situ por Tomografia Crio-STEM

Esse fluxo de trabalho permite a produção de lamelas direcionadas a estruturas biológicas marcadas com fluorescência que são pequenas (&lt;1 μm de extensão axial) e raras (1 cópia por célula) usando uma plataforma de imagem tricoincidente criogênica. Esta plataforma integra microscopia de fluorescência, fresagem de feixe de íons focalizada e microscopia eletrônica de varredura em uma única posição focal e permite microscopia de fluorescência simultânea durante a fresagem.

Fluxo de trabalho usando um microscópio de fluorescência coincidente criogênica, elétron e feixe de íons para moagem direcionada de células

Aprenda um fluxo de trabalho padronizado de criotomografia eletrônica para tecidos espessos, demonstrado no hipocampo de camundongos. Este protocolo integra congelamento por alta pressão, fresagem por feixe de íons e análise estrutural in situ de alta resolução.

Fluxo de trabalho de criotomografia eletrônica para tecidos espessos demonstrado em hipocampo de camundongos

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