Research Project
Grant-in-Aid for Early-Career Scientists
<Research Achievement during the 1st year> Cancer cachexia model was prepared by subcutaneous injection of 85As2 cells (a gastric cancer cell line) into BALB/cAJcl-nu/nu nude mice. The model mice started to present cachexic symptoms such as a decrease of body weight and food intake 2 weeks after 85As2 inoculation. Therefore, the alteration in the central nervous system was investigated at that time point. It was revealed that the purine nucleotide metabolism and the expression of astrocytic marker was increased in the forebrain of the model mice.<Research Achievement during the 2nd year> A blood-brain barrier model composed of astrocytes and brain microvascular endothelial cells was fabricated utilizing a collagen vitrigel membrane. The model showed high responsiveness to inflammatory stimuli, suggesting that this model is useful for the investigation of the role of astrocytes in the pathogenesis of cancer cachexia.
本研究は、未だに有効な治療法の確立されていないがん悪液質において、中枢神経系のプリンヌクレオチド代謝やアストロサイトの活性制御が新規治療法となり得ることを明らかにした。また、本研究において新たに構築した血液脳関門モデルはがん悪液質の迅速なスクリーニングを可能とすることが期待される。以上より、本研究はがん緩和医療の発展に貢献し得ると考えられる。
All 2020 2019 2018
All Journal Article (8 results) (of which Peer Reviewed: 7 results, Open Access: 6 results) Presentation (17 results) (of which Int'l Joint Research: 4 results) Patent(Industrial Property Rights) (1 results)
Sci Rep.
Volume: 10 Issue: 1 Pages: 625-625
10.1038/s41598-019-57192-2
Journal of Pharmacological Sciences
Volume: 140 Issue: 1 Pages: 109-112
10.1016/j.jphs.2019.04.005
Volume: 140 Issue: 2 Pages: 171-177
10.1016/j.jphs.2019.06.005
European Journal of Pharmacology
Volume: 847 Pages: 143-157
10.1016/j.ejphar.2019.01.040
Int J Mol Sci.
Volume: 19 Issue: 4 Pages: 1159-1173
10.3390/ijms19041159
Journal of Neuroendocrinology
Volume: 30 Issue: 9
10.1111/jne.12630
Frontiers in Nutrition
Volume: 5 Pages: 93-93
10.3389/fnut.2018.00093
Oncotarget
Volume: 9 Issue: 78 Pages: 34748-34764
10.18632/oncotarget.26190