Methods for modeling tumor growth in mice in experimental studies of human gastric cancer

Gastric cancer (GC) is a group of malignant tumors originating from the gastric mucosa cells. The highest incidence of GC is recorded in Japan, China and Russia, and the lowest one in the USA and New Zealand. Extensive molecular genetic research of GC has revealed its heterogeneity associated with t...

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Main Authors: A. A. Kiblitskaya, T. S. Karasev, A. S. Goncharova, A. Yu. Maksimov
Format: Article
Language:Russian
Published: ANO "Perspective of oncology" 2021-12-01
Series:Южно-Российский онкологический журнал
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Online Access:https://www.cancersp.com/jour/article/view/122
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author A. A. Kiblitskaya
T. S. Karasev
A. S. Goncharova
A. Yu. Maksimov
author_facet A. A. Kiblitskaya
T. S. Karasev
A. S. Goncharova
A. Yu. Maksimov
author_sort A. A. Kiblitskaya
collection DOAJ
description Gastric cancer (GC) is a group of malignant tumors originating from the gastric mucosa cells. The highest incidence of GC is recorded in Japan, China and Russia, and the lowest one in the USA and New Zealand. Extensive molecular genetic research of GC has revealed its heterogeneity associated with the genomic instability of the tumor and the complexity of its phenotype due to simultaneous changes in several oncogenes and suppressors. This was the basis for the creation of the GC classification by molecular subtypes. The creation of a realistic preclinical model is essential for translational GC studies. Cancer cell lines and xenografts derived from them are among the most common preclinical models. They are easy to generate, but they also have limitations, since these models cannot sufficiently reproduce the unique characteristics of each cancer patient. Patient-derived xenografts (PDX) are currently the best model for testing targets and predictors of response to therapy. PDX models are created by transplanting surgically resected human tumors into immunodeficient mice. These models maintain morphological similarity and replicate the molecular characteristics of parental tumors providing an indispensable tool for assessing anticancer drug response. Statistical data from preclinical studies with PDX models can significantly save the time and resources required for clinical trials. Transgenic and knockout mouse models are also widely used in scientific laboratories in order to study specific genetic pathways of oncogenesis and develop experimental therapy for GC. This review discusses the molecular classifications of GC and experimental murine models that reproduce cancer in situ and are a universal platform for preclinical research in experimental oncology.
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spelling doaj-art-5ff21228c19c421a831f32b8ca949e362025-08-20T03:20:23ZrusANO "Perspective of oncology"Южно-Российский онкологический журнал2686-90392021-12-0124263710.37748/2686-9039-2021-2-4-485Methods for modeling tumor growth in mice in experimental studies of human gastric cancerA. A. Kiblitskaya0T. S. Karasev1A. S. Goncharova2A. Yu. Maksimov3National Medical Research Centre for Oncology of the Ministry of Health of RussiaNational Medical Research Centre for Oncology of the Ministry of Health of RussiaNational Medical Research Centre for Oncology of the Ministry of Health of RussiaNational Medical Research Centre for Oncology of the Ministry of Health of RussiaGastric cancer (GC) is a group of malignant tumors originating from the gastric mucosa cells. The highest incidence of GC is recorded in Japan, China and Russia, and the lowest one in the USA and New Zealand. Extensive molecular genetic research of GC has revealed its heterogeneity associated with the genomic instability of the tumor and the complexity of its phenotype due to simultaneous changes in several oncogenes and suppressors. This was the basis for the creation of the GC classification by molecular subtypes. The creation of a realistic preclinical model is essential for translational GC studies. Cancer cell lines and xenografts derived from them are among the most common preclinical models. They are easy to generate, but they also have limitations, since these models cannot sufficiently reproduce the unique characteristics of each cancer patient. Patient-derived xenografts (PDX) are currently the best model for testing targets and predictors of response to therapy. PDX models are created by transplanting surgically resected human tumors into immunodeficient mice. These models maintain morphological similarity and replicate the molecular characteristics of parental tumors providing an indispensable tool for assessing anticancer drug response. Statistical data from preclinical studies with PDX models can significantly save the time and resources required for clinical trials. Transgenic and knockout mouse models are also widely used in scientific laboratories in order to study specific genetic pathways of oncogenesis and develop experimental therapy for GC. This review discusses the molecular classifications of GC and experimental murine models that reproduce cancer in situ and are a universal platform for preclinical research in experimental oncology.https://www.cancersp.com/jour/article/view/122gastric cancermolecular subtypespdx modelorthotopic xenograftgenetically modified modelstargeted therapy
spellingShingle A. A. Kiblitskaya
T. S. Karasev
A. S. Goncharova
A. Yu. Maksimov
Methods for modeling tumor growth in mice in experimental studies of human gastric cancer
Южно-Российский онкологический журнал
gastric cancer
molecular subtypes
pdx model
orthotopic xenograft
genetically modified models
targeted therapy
title Methods for modeling tumor growth in mice in experimental studies of human gastric cancer
title_full Methods for modeling tumor growth in mice in experimental studies of human gastric cancer
title_fullStr Methods for modeling tumor growth in mice in experimental studies of human gastric cancer
title_full_unstemmed Methods for modeling tumor growth in mice in experimental studies of human gastric cancer
title_short Methods for modeling tumor growth in mice in experimental studies of human gastric cancer
title_sort methods for modeling tumor growth in mice in experimental studies of human gastric cancer
topic gastric cancer
molecular subtypes
pdx model
orthotopic xenograft
genetically modified models
targeted therapy
url https://www.cancersp.com/jour/article/view/122
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AT tskarasev methodsformodelingtumorgrowthinmiceinexperimentalstudiesofhumangastriccancer
AT asgoncharova methodsformodelingtumorgrowthinmiceinexperimentalstudiesofhumangastriccancer
AT ayumaksimov methodsformodelingtumorgrowthinmiceinexperimentalstudiesofhumangastriccancer