| Title: | Tumor endothelial cells with high aldehyde dehydrogenase activity show drug resistance |
| Authors: | Hida, Kyoko Browse this author →KAKEN DB |
| Maishi, Nako Browse this author →KAKEN DB |
| Akiyama, Kosuke Browse this author →KAKEN DB |
| Ohmura-Kakutani, Hitomi Browse this author |
| Torii, Chisaho Browse this author |
| Ohga, Noritaka Browse this author →KAKEN DB |
| Osawa, Takahiro Browse this author |
| Kikuchi, Hiroshi Browse this author |
| Morimoto, Hirofumi Browse this author |
| Morimoto, Masahiro Browse this author |
| Shindoh, Masanobu Browse this author →KAKEN DB |
| Shinohara, Nobuo Browse this author →KAKEN DB |
| Hida, Yasuhiro Browse this author →KAKEN DB |
| Keywords: | Aldehyde dehydrogenase (ALDH) |
| angiogenesis |
| endothelial cell |
| resistance |
| tumor |
| Issue Date: | Nov-2017 |
| Publisher: | John Wiley & Sons |
| Journal Title: | Cancer science |
| Volume: | 108 |
| Issue: | 11 |
| Start Page: | 2195 |
| End Page: | 2203 |
| Publisher DOI: | 10.1111/cas.13388 |
| Abstract: | Tumor blood vessels play an important role in tumor progression and metastasis. We previously reported that tumor endothelial cells (TEC) exhibit several altered phenotypes compared with normal endothelial cells (NEC). For example, TEC have chromosomal abnormalities and are resistant to several anticancer drugs. Furthermore, TEC contain stem cell-like populations with high aldehyde dehydrogenase (ALDH) activity (ALDHhigh TEC). ALDHhigh TEC have proangiogenic properties compared with ALDHlow TEC. However, the association between ALDHhigh TEC and drug resistance remains unclear. In the present study, we found that ALDH mRNA expression and activity were higher in both human and mouse TEC than in NEC. Human NEC:human microvascular endothelial cells (HMVEC) were treated with tumor-conditioned medium (tumor CM). The ALDHhigh population increased along with upregulation of stem-related genes such as multidrug resistance 1, CD90, ALP, and Oct-4. Tumor CM also induced sphere-forming ability in HMVEC. Platelet-derived growth factor (PDGF)-A in tumor CM was shown to induce ALDH expression in HMVEC. Finally, ALDHhigh TEC were resistant to fluorouracil (5-FU) in vitro and in vivo. ALDHhigh TEC showed a higher grade of aneuploidy compared with that in ALDHlow TEC. These results suggested that tumor-secreting factor increases ALDHhigh TEC populations that are resistant to 5-FU. Therefore, ALDHhigh TEC in tumor blood vessels might be an important target to overcome or prevent drug resistance. |
| Rights: | http://creativecommons.org/licenses/by-nc/4.0/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/67988 |
| Appears in Collections: | 遺伝子病制御研究所 (Institute for Genetic Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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