Name: visualization and analysis of pharyngeal arch arteries using whole-mount immunohistochemistry and 3d reconstruction
Uploaded: 2020-03-31T14:00:00
Description: Watch this Scientific Journal Video about Visualization and Analysis of Pharyngeal Arch Arteries using Whole-mount Immunohistochemistry and 3D Reconstruction at JoVE.com

We thank Brianna Alexander, Caolan O&#39;Donnell and Michael Warkala for careful reading and editing of this manuscript. This work was supported by the funding from the National Heart, Lung and Blood Institute of the NIH R01 HL103920, R01 HL134935, R21 OD025323-01 to SA; AJR is supported by NHLBI HL103920-08S1 and the National Institute of Arthritis and Musculoskeletal and Skin Diseases Training grant T32052283-11.

Animal use and procedures were approved by the Institutional Animal Care and Use Committee at Rutgers University.
1. Preparation of solutions
<ol>
	<li>Prepare 1 L of phosphate buffered saline with 0.1% Triton-X-100 (PBST) and filter sterilize. This solution can be stored at room temperature (RT) for at least a year.</li>
	<li>Prepare 600 &#181;L of blocking buffer consisting of 10% of normal donkey serum in PBST. Make this solution fresh each time.</li>
	<li>Prepare 50 mL of the following m...

<ol>
	<li>Hiruma, T., Nakajima, Y., Nakamura, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Development+of+pharyngeal+arch+arteries+in+early+mouse+embryo.">Development of pharyngeal arch arteries in early mouse embryo.</a> Journal of Anatomy. 201 (1), 15-29 (2002).</li><li>Hutson, M. R., Kirby, M. L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Model+systems+for+the+study+of+heart+development+and+disease+Cardiac+neural+crest+and+conotruncal+malformations.">Model systems for the study of heart development and disease Cardiac neural crest and conotruncal malformations.</a> Seminars in Cell &amp; Developmental Biology. 18 (1), 101-110 (2007).</li><li>Wang, X., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Endothelium+in+the+pharyngeal+arches+3,+4+and+6+is+derived+from+the+second+heart+field.">Endothelium in the pharyngeal arches 3, 4 and 6 is derived from the second heart field.</a> Developmental Biology. 421 (2), 108-117 (2017).</li><li>Jerome, L. A., Papaioannou, V. E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=DiGeorge+syndrome+phenotype+in+mice+mutant+for+the+T-box+gene,+Tbx1.">DiGeorge syndrome phenotype in mice mutant for the T-box gene, Tbx1.</a> Nature Genetics. 27 (3), 286-291 (2001).</li><li>Lindsay, E. A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Tbx1+haploinsufficieny+in+the+DiGeorge+syndrome+region+causes+aortic+arch+defects+in+mice.">Tbx1 haploinsufficieny in the DiGeorge syndrome region causes aortic arch defects in mice.</a> Nature. 410 (6824), 97-101 (2001).</li><li>Weninger, W., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Visualising+the+Cardiovascular+System+of+Embryos+of+Biomedical+Model+Organisms+with+High+Resolution+Episcopic+Microscopy+(HREM).">Visualising the Cardiovascular System of Embryos of Biomedical Model Organisms with High Resolution Episcopic Microscopy (HREM).</a> Journal of Cardiovascular Development and Disease. 5 (4), 58 (2018).</li><li>Phillips, H. M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Pax9+is+required+for+cardiovascular+development+and+interacts+with+Tbx1+in+the+pharyngeal+endoderm+to+control+4th+pharyngeal+arch+artery+morphogenesis.">Pax9 is required for cardiovascular development and interacts with Tbx1 in the pharyngeal endoderm to control 4th pharyngeal arch artery morphogenesis.</a> Development. 146 (18), (2019).</li><li>Vlaeminck-Guillem, V., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+Ets+family+member+Erg+gene+is+expressed+in+mesodermal+tissues+and+neural+crests+at+fundamental+steps+during+mouse+embryogenesis.">The Ets family member Erg gene is expressed in mesodermal tissues and neural crests at fundamental steps during mouse embryogenesis.</a> Mechanisms of Development. 91 (1-2), 331-335 (2000).</li><li>Ert&#252;rk, A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Three-dimensional+imaging+of+the+unsectioned+adult+spinal+cord+to+assess+axon+regeneration+and+glial+responses+after+injury.">Three-dimensional imaging of the unsectioned adult spinal cord to assess axon regeneration and glial responses after injury.</a> Nature Medicine. 18 (1), 166-217 (2012).</li><li>Azaripour, A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+survey+of+clearing+techniques+for+3D+imaging+of+tissues+with+special+reference+to+connective+tissue.">A survey of clearing techniques for 3D imaging of tissues with special reference to connective tissue.</a> Progress in Histochemistry and Cytochemistry. 51 (2), 9-23 (2016).</li><li>Richardson, D. S., Lichtman, J. W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Clarifying+Tissue+Clearing.">Clarifying Tissue Clearing.</a> Cell. 162 (2), 246-257 (2015).</li><li>Becker, K., J&#228;hrling, N., Saghafi, S., Weiler, R., Dodt, H. U. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Chemical+Clearing+and+Dehydration+of+GFP+Expressing+Mouse+Brains.">Chemical Clearing and Dehydration of GFP Expressing Mouse Brains.</a> PLoS One. 7 (3), e33916 (2012).</li><li>Ert&#252;rk, A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Three-dimensional+imaging+of+solvent-cleared+organs+using+3DISCO.">Three-dimensional imaging of solvent-cleared organs using 3DISCO.</a> Nature Protocols. 7 (11), 1983-1995 (2012).</li><li>Kuwajima, T., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=ClearT:+a+detergent-+and+solvent-free+clearing+method+for+neuronal+and+non-neuronal+tissue.">ClearT: a detergent- and solvent-free clearing method for neuronal and non-neuronal tissue.</a> Development. 140 (6), 1364-1368 (2013).</li></ol>

The ability to visualize the endothelium in mouse embryos in 3D has provided new insights into their development3. Here we present a protocol that allows for high-resolution 3D imaging of embryos, visualization of vascular connectivity, and quantitative analyses of PAA formation. This protocol can be employed to see how genetic alterations or environmental insults impact PAA development. The procedure reported here uses antibodies against VEGFR2 and ERG to visualize PAA formation and quantify EC n...

During mouse embryogenesis, pharyngeal arch arteries (PAAs) arise as symmetrical, bi-lateral pairs of arteries that connect the heart with the dorsal aortae1. As the embryo develops, the first and second pairs of PAAs regress, while the 3rd, 4th, and 6th PAAs undergo a series of asymmetrical remodeling events to form the aortic arch arteries2.
The PAAs 3, 4 and 6 develop via vasculogenesis, which is the de novo formation of blood vessels3. Defects in the formation or remodeling of these arch arteries give rise to various congenital heart defects, such as those seen in patients with DiGeorge Syndrome4,5. Therefore, understanding mechanisms that regulate the development of PAAs can lead to a better understanding of congenital heart disease (CHD) etiology.
Current approaches for visualizing and analyzing PAA development include immunofluorescence of tissue sections, vascular casts, India ink injection, high resolution episcopic microscopy, and/or whole-mount immunohistochemistry1,4,5,6,7. Herein, we describe a protocol combining whole-mount immunofluorescence, confocal microscopy and 3D image rendering in order to gather, analyze, and quantify volumetric data, vascular connectivity and cell identity. Further, we detail a method to compartmentalize and quantify the numbers of ECs in each pharyngeal arch as a means to study formation of the pharyngeal arch vascular plexus and its remodeling into the PAAs. While this protocol is designed for analyzing PAA development, it can be used to analyze other developing vascular networks.

<table border="1" fo:keep-together.within-page="1" fo:keep-with-next.within-page="always">
	<tbody>
		<tr>
			<td>10x PBS</td>
			<td>MP Biomedicals</td>
			<td>PBS10X02</td>
			<td></td>
		</tr>
		<tr>
			<td>20x water immersion objective</td>
			<td>Nikon</td>
			<td>MRD77200</td>
			<td></td>
		</tr>
		<tr>
			<td>Agarose</td>
			<td>Bio-Rad Laboratories</td>
			<td>1613101</td>
			<td></td>
		</tr>
		<tr>
			<td>Alexa Fluor 488 anti-goat</td>
			<td>Invitrogen</td>
			<td>A-11055</td>
			<td></td>
		</tr>
		<tr>
			<td>Alexa Fluor 555 anti-mouse</td>
			<td>Invitrogen</td>
			<td>A-31570</td>
			<td></td>
		</tr>
		<tr>
			<td>Analysis Software</td>
			<td>Imaris 9.2.0</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Benzyl Alcohol</td>
			<td>Sigma-Aldrich</td>
			<td>305197</td>
			<td></td>
		</tr>
		<tr>
			<td>Benzyl Benzoate</td>
			<td>Sigma-Aldrich</td>
			<td>8.18701.0100</td>
			<td></td>
		</tr>
		<tr>
			<td>Cover Slips</td>
			<td>VWR</td>
			<td>16004-312</td>
			<td></td>
		</tr>
		<tr>
			<td>DAPI (5 mg/mL stock)</td>
			<td>Fisher Scientific</td>
			<td>D3571</td>
			<td></td>
		</tr>
		<tr>
			<td>Eppendorf Tubes (2.0 mL)</td>
			<td>Fisher Scientific</td>
			<td>05-408-138</td>
			<td></td>
		</tr>
		<tr>
			<td>Ethanol</td>
			<td>VWR</td>
			<td>89370-084</td>
			<td></td>
		</tr>
		<tr>
			<td>Falcon tubes (50 mL)</td>
			<td>Corning</td>
			<td>352098</td>
			<td></td>
		</tr>
		<tr>
			<td>Fast wells</td>
			<td>Grace Bio Labs</td>
			<td>664113</td>
			<td></td>
		</tr>
		<tr>
			<td>Forceps</td>
			<td>Roboz</td>
			<td>RS-5015</td>
			<td></td>
		</tr>
		<tr>
			<td>Goat anti-VEGFR2</td>
			<td>R&#38;D Systems, Inc.</td>
			<td>AF644</td>
			<td></td>
		</tr>
		<tr>
			<td>Methanol</td>
			<td>VWR</td>
			<td>BDH1135-4LP</td>
			<td></td>
		</tr>
		<tr>
			<td>Microscope</td>
			<td>Nikon</td>
			<td>A1HD25</td>
			<td></td>
		</tr>
		<tr>
			<td>Mouse anti-ERG</td>
			<td>Abcam</td>
			<td>ab214341</td>
			<td></td>
		</tr>
		<tr>
			<td>Normal Donkey Serum</td>
			<td>Sigma-Aldrich</td>
			<td>D9663</td>
			<td></td>
		</tr>
		<tr>
			<td>Paraformaldehyde</td>
			<td>Electron Microscopy Sciences</td>
			<td>15710</td>
			<td></td>
		</tr>
		<tr>
			<td>Pasteur pipets</td>
			<td>Fisher Scientific</td>
			<td>13-678-20D</td>
			<td></td>
		</tr>
		<tr>
			<td>Petri dishes (35 mm)</td>
			<td>Genesee Scientific</td>
			<td>32-103</td>
			<td></td>
		</tr>
		<tr>
			<td>Petri dishes (60 mm)</td>
			<td>Genesee Scientific</td>
			<td>32-105</td>
			<td></td>
		</tr>
		<tr>
			<td>Plastic Molds</td>
			<td>VWR</td>
			<td>18000-128</td>
			<td></td>
		</tr>
		<tr>
			<td>Scapels</td>
			<td>Exelint International Co.</td>
			<td>29552</td>
			<td></td>
		</tr>
		<tr>
			<td>Triton-X-100</td>
			<td>Fisher Scientific</td>
			<td>BP 151-500</td>
			<td></td>
		</tr>
	</tbody>
</table>

visualization and analysis of pharyngeal arch arteries using whole-mount immunohistochemistry and 3d reconstruction

Improper formation or remodeling of the pharyngeal arch arteries (PAAs) 3, 4, and 6 contribute to some of the most severe forms of congenital heart disease. To study the formation of PAAs, we developed a protocol using whole-mount immunofluorescence coupled with benzyl alcohol/benzyl benzoate (BABB) tissue clearing, and confocal microscopy. This allows for the visualization of the pharyngeal arch endothelium at a fine cellular resolution as well as the 3D connectivity of the vasculature. Using software, we have established a protocol to quantify the number of endothelial cells (ECs) in PAAs, as well as the number of ECs within the vascular plexus surrounding the PAAs within pharyngeal arches 3, 4, and 6. When applied to the whole embryo, this methodology provides a comprehensive visualization and quantitative analysis of embryonic vasculature.

The whole-mount immunofluorescence protocol presented here produces clear and clean results, allowing for the 3D reconstruction of pharyngeal arch endothelium, as seen in Figure 1A. It is important to incubate embryos for a sufficient amount of time in each antibody solution to ensure complete penetration through the sample, as well as, thoroughly washing embryos post antibody incubation. In Figure 1B</st...

Watch this Scientific Journal Video about Visualization and Analysis of Pharyngeal Arch Arteries using Whole-mount Immunohistochemistry and 3D Reconstruction at JoVE.com

Visualization and Analysis of Pharyngeal Arch Arteries using Whole-mount Immunohistochemistry and 3D Reconstruction

Here, we describe a protocol to visualize and analyze the pharyngeal arch arteries 3, 4, and 6 of mouse embryos using whole-mount immunofluorescence, tissue clearing, confocal microscopy, and 3D reconstruction.

Improper formation or remodeling of the pharyngeal arch arteries (PAAs) 3, 4, and 6 contribute to some of the most severe forms of congenital heart ...

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