Metabolic alteration - Overcoming therapy resistance in gastric cancer via PGK-1 inhibition in a combined therapy with standard chemotherapeutics

被引：22

作者：

Schneider, Carl Christoph ^{[1
]}

Archid, Rami ^{[1
]}

Fischer, Nathania ^{[1
]}

Buehler, Sarah ^{[2
]}

Venturelli, Sascha ^{[3
]}

Berger, Alexander ^{[3
]}

Burkard, Markus ^{[3
]}

Kirschniak, Andreas ^{[1
]}

Bachmann, Robert ^{[1
]}

Koenigsrainer, Alfred ^{[1
]}

Glatzle, Joerg ^{[1
]}

Zieker, Derek ^{[1
]}

机构：

[1] Tuebingen Univ Hosp, Clin Visceral Gen & Transplant Surg, Tubingen, Germany

[2] Inst Clin & Expt Transfus Med IKET, Tubingen, Germany

[3] Med Univ Hosp Tuebingen, Dept Internal Med 1, Tubingen, Germany

来源：

INTERNATIONAL JOURNAL OF SURGERY | 2015年 / 22卷

关键词：

PGK1; Metabolic alteration; Therapy resistance in gastric cancer; Human gastric adenocarcinoma cell line 23132/87; Combined in vitro therapy chemotherapeutics and adenovirus anti-PGK1; PGK1-inhibition; PERITONEAL-LAVAGE CYTOLOGY; PHOSPHOGLYCERATE KINASE 1; STEM-CELLS; ONCOLYTIC VIROTHERAPY; METASTASIS; STRATEGY; DIFFERENTIATION; OVEREXPRESSION; DISSEMINATION; PROGRESSION;

D O I：

10.1016/j.ijsu.2015.08.020

中图分类号：

R61 [外科手术学];

学科分类号：

摘要：

Background and Objectives: It can be assumed that PGK1 is involved in metastatic spread of gastric carcinomas. Furthermore PGK1 has a proven influence on the characteristics of tumor stem cells. The presence of malignant stem cells, regarding treatment resistance and recurrence, is of considerable importance. We hypothesized that inhibition of PGK1 makes these cells more sensitive to chemotherapeutic agents and therefore mediates an overcome of the existing therapy resistance. Methods: All investigations were performed with human gastric adenocarcinoma cell lines. Small hairpin RNA knockdown of PGK1 via adenovirus-shPGK1 was used for PGK1-inhibition. Chemotherapeutic agents were 5-FU and mitomycin. FACS, qRT-PCR, and xCELLigence were performed. Results: Using the medium-sole-control indicating the highest cell viability and Triton indicating the lowest, mitomycin and 5-FU alone showed a significant decrease in cell viability. The treatment with AdvshPGK1 alone already showed a better decrease. The simultaneous application of chemotherapeutics and adenovirus showed the strongest effect and is comparable to the effect of Triton. Conclusions: We showed a significant decrease in cell viability after the simultaneous application of chemotherapeutics and adenovirus. These results suggest that PGK1-inhibition is able to increase the vulnerability of gastric cancer cells and tumor stem cells to overcome the chemotherapeutic therapy resistance. (C) 2015 IJS Publishing Group Limited. Published by Elsevier Ltd. All rights reserved.

引用

页码：92 / 98

页数：7

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