Establishment and characterization of intraperitoneal xenograft models by co-injection of human tumor cells and extracellular matrix gel

Oncology Letters
Yuqin YaoJinliang Yang

Abstract

Establishing a feasible intraperitoneal (i.p.) xenograft model in nude mice is a good strategy to evaluate the antitumor effect of drugs in vivo. However, the manipulation of human cancer cells in establishing a stable peritoneal carcinomatosis model in nude mice is problematic. In the present study, the ovarian and colorectal peritoneal tumor models were successfully established in nude mice by co-injection of human tumor cells and extracellular matrix gel. In ovarian tumor models, the mean number tumor nodes was significantly higher in the experimental group (intraperitoneal tumor cell co-injection with ECM gel) compared with the PBS control group on the 30th day (21.0±3.0 vs. 3.6±2.5; P<0.05). The same results were observed in the colorectal peritoneal tumor models on the 28th day. The colorectal peritoneal tumor model was further used to evaluate the chemotherapy effect of irinotecan (CPT-11). The mean weight of peritoneal tumor nodes in CPT-11 treatment group was significantly less than that of the control group (0.81±0.16 vs. 2.18±0.21 g; P<0.05). The results confirmed the value of these i.p. xenograft models in nude mice as efficient and feasible tools for preclinical evaluation.

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Citations

Nov 11, 2017·Bulletin of Experimental Biology and Medicine·E V KonovalovaS M Deev
Jun 7, 2020·Laboratory Investigation; a Journal of Technical Methods and Pathology·Vivian P BastiaenenLouis Vermeulen
Dec 23, 2016·Physiological Research·I SzadvariP Babula
Sep 4, 2020·Diagnostics·Anca OnaciuIoana Berindan-Neagoe
Mar 7, 2021·Cancers·Ángela BellaFernando Aranda
Aug 6, 2019·Journal of Medicinal Chemistry·Baowen QiJianyou Shi

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Methods Mentioned

BETA
light microscopy

Software Mentioned

SPSS

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