Effect of Xenotransplantation Site on MicroRNA Expression of Human Colon Cancer Stem Cells

被引：0

作者：

Mukohyama, Junko ^{[1
,2
]}

Shimono, Yohei ^{[1
]}

Yamashita, Kimihiro ^{[2
]}

Sumi, Yasuo ^{[2
]}

Mukohara, Toru ^{[3
,4
]}

Minami, Hironobu ^{[3
,4
]}

Kakeji, Yoshihiro ^{[2
]}

机构：

[1] Kobe Univ, Grad Sch Med, Div Mol & Cellular Biol, Kobe, Hyogo 6500017, Japan

[2] Kobe Univ, Grad Sch Med, Div Gastrointestinal Surg, Kobe, Hyogo 6500017, Japan

[3] Kobe Univ, Grad Sch Med, Div Med Oncol Hematol, Kobe, Hyogo 6500017, Japan

[4] Kobe Univ Hosp, Ctr Canc, Kobe, Hyogo, Japan

来源：

ANTICANCER RESEARCH | 2016年 / 36卷 / 07期

关键词：

Colon cancer; cancer stem cell; microRNA; xenograft; orthotopic transplantation; BREAST-CANCER; PATIENT; XENOGRAFTS; METASTASIS; HETEROGENEITY; PROFILE; MODEL; LUNG;

D O I：

暂无

中图分类号：

R73 [肿瘤学];

学科分类号：

100214 ;

摘要：

Background: Cancer stem cells (CSCs) have a high tumorigenic ability to form patient-derived tumor xenografts (PDXs). PDXs are an attractive pre-clinical model, but gene expression and biological behavior of cancer cells in the tumor will change during establishment and passage of PDXs. Materials and Methods: Human colon cancer PDX was established and passaged either subcutaneously or orthotopically into the murine intestine. Histology and flow cytometric profile of the surgical specimen and the PDX were analyzed. CSCs were then isolated from the tumors and their microRNA (miRNA) expression was analyzed by semi-quantitative polymerase chain reaction. Results: The surgical specimens and PDXs were histologically similar. The size of CSC population increased and expression of miRNAs in CSCs changed in the passaged PDXs. Expression of oncogenic miRNAs was highly up-regulated in the CSCs of the orthotopically passaged PDXs. Conclusion: The xenotransplantation site and the number of tumor passages affect the miRNA expression of human colon CSCs.

引用

页码：3679 / 3686

页数：8

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