BACKGROUND: The effects of hepatic ischemia/reperfusion (I/R) on liver metastasis have not been fully examined. We examined hepatic I/R and liver metastasis of colorectal cancer in a rat model; we also quantitated expression of E-selectin (ELAM-1) mRNA after I/R. MATERIALS AND METHODS: Rats underwent 30 or 60 min of 70% partial hepatic ischemia. After 60 min of reperfusion, rat colon adenocarcinoma cells (RCN-H4) were inoculated intrasplenically. The number of tumor nodules on the liver surface was determined 3 weeks later. Expression of E-selectin mRNA was determined at 1, 3, and 6 h after ischemia by quantitative RT-PCR. RESULTS: Hepatic I/R promoted liver metastasis of RCN-H4 and induced the expression of E-selectin mRNA in both clamped and unclamped liver lobes. The number of tumor nodules and the expression of E-selectin mRNA after 60 min of ischemia was greater than that after 30 min. CONCLUSIONS: Hepatic I/R, especially with a long duration of ischemia, induces expression of E-selectin and promotes liver metastasis of colon cancer in rats.
BACKGROUND: The effects of hepatic ischemia/reperfusion (I/R) on liver metastasis have not been fully examined. We examined hepatic I/R and liver metastasis of colorectal cancer in a rat model; we also quantitated expression of E-selectin (ELAM-1) mRNA after I/R. MATERIALS AND METHODS:Rats underwent 30 or 60 min of 70% partial hepatic ischemia. After 60 min of reperfusion, ratcolon adenocarcinoma cells (RCN-H4) were inoculated intrasplenically. The number of tumor nodules on the liver surface was determined 3 weeks later. Expression of E-selectin mRNA was determined at 1, 3, and 6 h after ischemia by quantitative RT-PCR. RESULTS: Hepatic I/R promoted liver metastasis of RCN-H4 and induced the expression of E-selectin mRNA in both clamped and unclamped liver lobes. The number of tumor nodules and the expression of E-selectin mRNA after 60 min of ischemia was greater than that after 30 min. CONCLUSIONS: Hepatic I/R, especially with a long duration of ischemia, induces expression of E-selectin and promotes liver metastasis of colon cancer in rats.
Authors: Melanie E Tsang; Paul J Karanicolas; Rogeh Habashi; Eva Cheng; Sherif S Hanna; Natalie G Coburn; Calvin H L Law; Julie Hallet Journal: HPB (Oxford) Date: 2015-09 Impact factor: 3.647
Authors: Kit Fai Lee; Charing C N Chong; Sunny Y S Cheung; John Wong; Andrew K Y Fung; Hon Ting Lok; Paul B S Lai Journal: World J Surg Date: 2019-12 Impact factor: 3.352