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Promising xenograft animal model recapitulating the features of human pancreatic cancer.

ABSTRACT: BACKGROUND:Multiple sites of metastasis and desmoplastic reactions in the stroma are key features of human pancreatic cancer (PC). There are currently no simple and reliable animal models that can mimic these features for accurate disease modeling. AIM:To create a new xenograft animal model that can faithfully recapitulate the features of human PC. METHODS:Interleukin 2 receptor subunit gamma (IL2RG) gene knockout Syrian hamster was created and characterized. A panel of human PC cell lines were transplanted into IL2RG knockout Syrian hamsters and severe immune-deficient mice subcutaneously or orthotopically. Tumor growth, local invasion, remote organ metastasis, histopathology, and molecular alterations of tumor cells and stroma were compared over time. RESULTS:The Syrian hamster with IL2RG gene knockout (named ZZU001) demonstrated an immune-deficient phenotype and function. ZZU001 hamsters faithfully recapitulated most features of human PC, in particular, they developed metastasis at multiple sites. PC tissues derived from ZZU001 hamsters displayed desmoplastic reactions in the stroma and epithelial to mesenchymal transition phenotypes, whereas PC tissues derived from immune-deficient mice did not present such features. CONCLUSION:ZZU001 hamsters engrafted with human PC cells are a superior animal model compared to immune-deficient mice. ZZU001 hamsters can be a valuable animal model for better understanding the molecular mechanism of tumorigenesis and metastasis and the evaluation of new drugs targeting human PC.

SUBMITTER: Miao JX

PROVIDER: S-EPMC7459204 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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Promising xenograft animal model recapitulating the features of human pancreatic cancer.

Miao Jin-Xin JX Wang Jian-Yao JY Li Hao-Ze HZ Guo Hao-Ran HR Dunmall Louisa S Chard LSC Zhang Zhong-Xian ZX Cheng Zhen-Guo ZG Gao Dong-Ling DL Dong Jian-Zeng JZ Wang Zhong-De ZD Wang Yao-He YH

World journal of gastroenterology 20200801 32

<h4>Background</h4>Multiple sites of metastasis and desmoplastic reactions in the stroma are key features of human pancreatic cancer (PC). There are currently no simple and reliable animal models that can mimic these features for accurate disease modeling.<h4>Aim</h4>To create a new xenograft animal model that can faithfully recapitulate the features of human PC.<h4>Methods</h4>Interleukin 2 receptor subunit gamma (<i>IL2RG</i>) gene knockout Syrian hamster was created and characterized. A panel ...[more]

PMID: 32921958

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Dataset Information

Promising xenograft animal model recapitulating the features of human pancreatic cancer.

Publications

Promising xenograft animal model recapitulating the features of human pancreatic cancer.

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