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2017 ; 36
(1
): 160
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Patient-derived xenograft in zebrafish embryos: a new platform for translational
research in gastric cancer
#MMPMID29141689
Wu JQ
; Zhai J
; Li CY
; Tan AM
; Wei P
; Shen LZ
; He MF
J Exp Clin Cancer Res
2017[Nov]; 36
(1
): 160
PMID29141689
show ga
BACKGROUND: Gastric cancer (GC) is among the most commonly cancer occurred in
Asian, especially in China. With its high heterogeneity and few of validated drug
targets, GC remains to be one of the most under explored areas of precision
medicine. In this study, we aimed to establish an in vivo patient-derived
xenograft (PDX) model based on zebrafish (Danio rerio) embryos, allowing for a
rapid analysis of the angiogenic and invasive potentials, as well as a fast drug
sensitivity testing. METHODS: Two human gastric cancer cell lines (AGS and
SGC-7901) were xenografted into zebrafish embryos, their sensitivity to 5-FU were
tested both in vitro and in vivo. Fourteen human primary cells from gastric
cancer tissue were xenografted into zebrafish embryos, their proliferating,
angiogenic and metastatic activities were evaluated in vivo. Sensitivity to 5-FU,
docetaxel, and apatinib were also tested on primary samples from four patients.
RESULTS: SGC-7901 showed higher sensitivity to 5-FU than AGS both in vitro
(6.3?±?0.9 ?M vs.10.5?±?1.8 ?M) and in vivo. Nine out of fourteen patient samples
were successfully transplanted in zebrafish embryos and all showed proliferating,
angiogenic and metastatic potentials in the living embryos. Four cases showed
varied sensitivity to the selected three chemotherapeutic drugs. CONCLUSIONS: Our
zebrafish PDX (zPDX) model is a preclinically reliable in vivo model for GC. The
zPDX model is also a promising platform for the translational research and
personalized treatment on GC.