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Erschienen in: Annals of Surgical Oncology 13/2023

08.09.2023 | Translational Research

Cancer Stem Cells of Esophageal Adenocarcinoma are Suppressed by Inhibitors of TRPV2 and SLC12A2

verfasst von: Atsushi Shiozaki, MD, PhD, Hiroyuki Inoue, MD, PhD, Hiroki Shimizu, MD, PhD, Toshiyuki Kosuga, MD, PhD, Kenichi Takemoto, MD, PhD, Michihiro Kudou, MD, PhD, Takuma Ohashi, MD, PhD, Tomohiro Arita, MD, PhD, Hirotaka Konishi, MD, PhD, Shuhei Komatsu, MD, PhD, Takeshi Kubota, MD, PhD, Hitoshi Fujiwara, MD, PhD, Eigo Otsuji, MD, PhD

Erschienen in: Annals of Surgical Oncology | Ausgabe 13/2023

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Abstract

Background

The potential of membrane transporters activated in cancer stem cells (CSCs) as new therapeutic targets for cancer is attracting increasing interest. Therefore, the present study examined the expression profiles of ion transport-related molecules in the CSCs of esophageal adenocarcinoma (EAC).

Methods

Cells that highly expressed aldehyde dehydrogenase 1 family member A1 (ALDH1A1) were separated from OE33 cells, a human Barrett’s EAC cell line, by fluorescence-activated cell sorting. CSCs were identified based on the formation of tumorspheres. Gene expression profiles in CSCs were examined by a microarray analysis.

Results

Among OE33 cells, ALDH1A1 messenger RNA levels were higher in CSCs than in non-CSCs. Furthermore, CSCs exhibited resistance to cisplatin and had the capacity to redifferentiate. The results of the microarray analysis of CSCs showed the up-regulated expression of several genes related to ion channels/transporters, such as transient receptor potential vanilloid 2 (TRPV2) and solute carrier family 12 member 2 (SLC12A2). The cytotoxicities of the TRPV2 inhibitor tranilast and the SLC12A2 inhibitor furosemide were higher at lower concentrations in CSCs than in non-CSCs, and both markedly reduced the number of tumorspheres. The cell population among OE33 cells that highly expressed ALDH1A1 also was significantly decreased by these inhibitors.

Conclusions

Based on the present results, TRPV2 and SLC12A2 are involved in the maintenance of CSCs, and their specific inhibitors, tranilast and furosemide, respectively, have potential as targeted therapeutic agents for EAC.
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Metadaten
Titel
Cancer Stem Cells of Esophageal Adenocarcinoma are Suppressed by Inhibitors of TRPV2 and SLC12A2
verfasst von
Atsushi Shiozaki, MD, PhD
Hiroyuki Inoue, MD, PhD
Hiroki Shimizu, MD, PhD
Toshiyuki Kosuga, MD, PhD
Kenichi Takemoto, MD, PhD
Michihiro Kudou, MD, PhD
Takuma Ohashi, MD, PhD
Tomohiro Arita, MD, PhD
Hirotaka Konishi, MD, PhD
Shuhei Komatsu, MD, PhD
Takeshi Kubota, MD, PhD
Hitoshi Fujiwara, MD, PhD
Eigo Otsuji, MD, PhD
Publikationsdatum
08.09.2023
Verlag
Springer International Publishing
Erschienen in
Annals of Surgical Oncology / Ausgabe 13/2023
Print ISSN: 1068-9265
Elektronische ISSN: 1534-4681
DOI
https://doi.org/10.1245/s10434-023-14247-z

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