Microsurgical technique of locoregional injection into the hepatic artery in tumor-bearing mice
<b><i>Background:</i></b> Intraarterial injection into the hepatic artery represents an important route for locoregional administration for the treatment of hepatic tumors. In the present work, we describe microsurgical methodology for injection into the hepatic artery in mic...
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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
2018
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| In: |
European surgical research
Year: 2018, Volume: 59, Issue: 5-6, Pages: 339-348 |
| ISSN: | 1421-9921 |
| DOI: | 10.1159/000494429 |
| Online Access: | Verlag, Volltext: https://doi.org/10.1159/000494429 Verlag: https://www.karger.com/Article/FullText/494429 
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| Author Notes: | Baifeng Qian, Felix Strübing, Zhe Wang, Arianeb Mehrabi, Eduard Ryschich |
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| 520 | |a <b><i>Background:</i></b> Intraarterial injection into the hepatic artery represents an important route for locoregional administration for the treatment of hepatic tumors. In the present work, we describe microsurgical methodology for injection into the hepatic artery in mice. The technique was recently used for analysis of the phenomenon of endothelial capture in liver tumors. <b><i>Methods:</i></b> Two different models of hepatic tumors in C57BL/6 mice were used. Tumors were induced by intrahepatic cell inoculation. The preferential blood supply of tumors<b><i></i></b> was studied<b><i></i></b> using blocking of bioavailability of nontumoral endothelial epitope and the subsequent injection of fluorescent endothelium-specific antibody. The selective intraarterial injection of labeled antibody was performed in tumor-bearing mice. The procedure addressed variations of vascular anatomy of the hepatic artery in mice and used direct intraarterial injection with dispensable catheterization. <b><i>Results:</i></b> Both experimental tumor models showed preferential blood supply from the hepatic artery. The technique of hepatic arterial injection was adapted and performed according to two major anatomic variations of the hepatic artery. Using this technique, the selective enrichment of labeled antibody to tumor and liver blood vessels, which were perfused during the first intravascular passage, was demonstrated. <b><i>Conclusions:</i></b> The experimental hepatic arterial injection in mice is a feasible but demanding microsurgical procedure. The choice of subsequent operation steps is dependent on the vascular anatomy of the hepatic artery which has two major variations in mice. | ||
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