Abstract
Orthotopic liver transplantation in the mouse is a powerful research tool that has led to important mechanistic insights into the regulation of hepatic injury, liver immunopathology, and transplant tolerance. However, it is a technically demanding surgical procedure. Setup of the orthotopic liver transplantation model comprises three main stages: surgery on the donor mouse; back-table preparation of the liver graft; and transplant of the liver into the recipient mouse. In this protocol, we describe our procedure in stepwise detail to allow efficient completion of both the donor and recipient operations. The protocol can result in consistently high technical success rates when performed by personnel experienced in the protocol. The technique can be completed in ∼2–3 h when performed by an individual who is well practiced in performing mouse transplantation in accordance with this protocol. We have achieved a perioperative survival rate close to 100%.
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Acknowledgements
This work was supported by the US National Institutes of Health (NIH) (grants P01 AI81678 and R56 AI118777 to A.W.T. and grant T32 AI74490 to O.Y.) and by the Japan Society for the Promotion of Science (Grant-in-Aid for Scientific Research C-26461926 to N.K.). S.Y. was supported by funds from Jichi Medical University (Shimotsuke, Tochigi, Japan). O.Y. was supported by an American Society of Transplantation Basic Science Fellowship. We thank S. Qian and M. Morita (Department of Immunology, Lerner Research Institute, Cleveland Clinic) for valuable advice. We thank T. Teratani (Jichi Medical University) for valuable input.
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S.Y. and A.W.T. conceived and designed the outline of the manuscript. S.Y., S.U., Y.O., N.K. and A.P.-G. wrote the manuscript and prepared the pictures and images. S.K., O.Y., N.M., Y.Y., D.A.G. and A.W.T. revised and provided input during final editing of the manuscript.
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Supplementary information
Preparation before liver graft harvest (Steps 8–18)
Proper hepatic artery is ligated; ligament around the caudate lobe is cut; stent is placed in extrahepatic bile duct; retroperitoneum is dissected and lumbar veins are cauterized; right adrenal vein is ligated; 10-0 nylon is placed around the right renal vein. (MP4 29000 kb)
Donor liver perfusion and harvest (Steps 20–33)
Heparin is injected via the penile vein; donor liver is perfused from IHIVC; PV and bile duct are cut; pyloric vein is ligated; PV is skeletonized; splenic vein is ligated; PV is cut below the splenic vein. Right renal vein is ligated; stitch is placed in IHIVC; IHIVC is cut above the left renal vein; cystic duct is ligated and gall bladder is cut. Falciform ligament is cut; anterior and posterior wall of SHIVC are cut; paraesophageal vessels are ligated; ligament and connective tissue are cut. (MP4 26891 kb)
Cuff attachment (Steps 35–40)
IHIVC is folded over the cuff and is secured with 7-0 silk; 5-0 silk is placed around the IHIVC; the 10-0 nylon tied to the PV is pulled through the cuff; PV is folded over the cuff. (MP4 24988 kb)
Stay suture attachment (Step 41)
The liver is rotated and the stay suture is put on the SHIVC, on the bilateral edge. (MP4 17761 kb)
Preparation before anhepatic phase (Steps 43–55)
Ligament around caudate lobe is cut; left phrenic vein is ligated; paraesophageal vessels are ligated; the space between the liver and the retroperitoneum is dissected; 2-0 silk is placed behind the SHIVC; adrenal artery is cauterized behind the IHIVC; common bile duct is dissected and ligated with 7-0 silk; right PV is ligated. (MP4 27445 kb)
The anhepatic phase (Steps 56–71)
IHIVC is clamped; PV is clamped; bulldog clamp is placed on the diaphragm; anterior and posterior wall of SHIVC are cut; bifurcation of PV is cut; IHIVC is cut; ligament and connective tissue are cut. Suture is placed in the bilateral edge of SHIVC; stay suture on the left edge is tied; continuous suture on the posterior wall is started; air is flushed from SHIVC; anterior wall is closed; and suture is tied with the stay suture in the left lateral edge. For the portal vein anastomosis, a stay suture is placed on the posterior wall of PV; 7-0 silk is placed around recipient PV; the anterior wall of the recipient's PV is lifted; and the cuff is inserted. The clamp on the PV is released and the SHIVC is declamped. (MP4 24988 kb)
IHIVC anastomosis (Steps 72 and 73)
Stay suture is placed in the bilateral edge of IHIVC; 7-0 silk is placed around recipient IHIVC; anterior wall of IHIVC is lifted and cuff is inserted; the silk tied around donor IHIVC is released; the clamp is released. (MP4 27514 kb)
Bile duct anastomosis (Step 74)
7-0 silk is placed around the recipient bile duct; the anterior wall of the bile duct is cut; the stent is inserted and secured with the 7-0 silk. (MP4 28640 kb)
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Yokota, S., Ueki, S., Ono, Y. et al. Orthotopic mouse liver transplantation to study liver biology and allograft tolerance. Nat Protoc 11, 1163–1174 (2016). https://doi.org/10.1038/nprot.2016.073
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DOI: https://doi.org/10.1038/nprot.2016.073
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