Lymph node-independent liver metastasis in a model of metastatic colorectal cancer

Ida B. Enquist, Zinaida Good, Adrian M. Jubb, Germaine Fuh, Xi Wang, Melissa R. Junttila, Erica L. Jackson and Kevin G. Leong ()
Additional contact information
Ida B. Enquist: Genentech, Inc.
Zinaida Good: Genentech, Inc.
Adrian M. Jubb: Genentech, Inc.
Germaine Fuh: Genentech, Inc.
Xi Wang: Genentech, Inc.
Melissa R. Junttila: Genentech, Inc.
Erica L. Jackson: Genentech, Inc.
Kevin G. Leong: Genentech, Inc.

Nature Communications, 2014, vol. 5, issue 1, 1-10

Abstract: Abstract Deciphering metastatic routes is critically important as metastasis is a primary cause of cancer mortality. In colorectal cancer (CRC), it is unknown whether liver metastases derive from cancer cells that first colonize intestinal lymph nodes, or whether such metastases can form without prior lymph node involvement. A lack of relevant metastatic CRC models has precluded investigations into metastatic routes. Here we describe a metastatic CRC mouse model and show that liver metastases can manifest without a lymph node metastatic intermediary. Colorectal tumours transplanted onto the colonic mucosa invade and metastasize to specific target organs including the intestinal lymph nodes, liver and lungs. Importantly, this metastatic pattern differs from that observed following caecum implantation, which invariably involves peritoneal carcinomatosis. Anti-angiogenesis inhibits liver metastasis, yet anti-lymphangiogenesis does not impact liver metastasis despite abrogating lymph node metastasis. Our data demonstrate direct hematogenous spread as a dissemination route that contributes to CRC liver malignancy.

Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms4530

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DOI: 10.1038/ncomms4530

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