Research Project
Grant-in-Aid for Scientific Research (B)
We previously identified novel tumor-associated antigens (TAAs) frequently overexpressed in various cancers. In this study we identified these TAAs-derived long peptides (LPs) that can induce both Th1 cells restricted by common HLA class II molecules, and tumor-reactive CTLs specific to SPs included in LPs by cross-presentation in both human in vitro culture and HLA-transgenic mice in vivo. These LPs were naturally presented by DC and these TAA-LPs-specific Th cells were observed in cancer patients suggesting usefulness of these peptides for cancer immunotherapy. We demonstrated that tumor-specific Th1 cells was attenuated in tumor-bearing mice and cancer patients in an IL-6 and soluble IL-6 receptor (sIL-6R)-dependent manner. Abundant IL-6/sIL-6R was produced by myeloid cells in tumor-bearing mice and inhibition of IL-6-mediated signals restored the T cell-mediated tumor immunity suggesting that IL-6/sIL-6R is a rational target to augment T-cell-mediated cancer immunotherapy.
All 2018 2017 2016 2015 Other
All Int'l Joint Research (1 results) Journal Article (13 results) (of which Int'l Joint Research: 3 results, Peer Reviewed: 10 results, Open Access: 9 results, Acknowledgement Compliant: 2 results) Presentation (25 results) (of which Int'l Joint Research: 7 results, Invited: 14 results) Book (6 results) Remarks (1 results) Patent(Industrial Property Rights) (7 results) (of which Overseas: 7 results)
OncoImmunology
Volume: 7 Issue: 4 Pages: 1415687-1415687
10.1080/2162402x.2017.1415687
Cancer Research
Volume: 14 Issue: 9 Pages: 2279-2291
10.1158/0008-5472.can-16-2446
Cancer Science
Volume: 109 Issue: 3 Pages: 523-530
10.1111/cas.13433
Volume: 5 Issue: 6 Pages: e1123368-e1123368
10.1080/2162402x.2015.1123368
Int Immunol
Volume: 28 Issue: 7 Pages: 319-328
10.1093/intimm/dxw027
Plos One
Volume: 11 Issue: 4 Pages: e0152384-e0152384
10.1371/journal.pone.0152384
実験医学(羊土社) 「がん免疫療法 腫瘍免疫学の最新知見から治療法のアップデートまで」
Volume: 第34巻 増刊 Pages: 148-155
Oncoimmunology
Volume: 5 Issue: 1 Pages: e1062209-e1062209
10.1080/2162402x.2015.1062209
医学のあゆみ(医歯薬出版株式会社)
Volume: 256 Pages: 817-822
Nature Communications
Volume: 6 Issue: 1 Pages: 6702-6702
10.1038/ncomms7702
Volume: 4 Issue: 8 Pages: e1022307-e1022307
10.1080/2162402x.2015.1022307
Volume: 106 Issue: 5 Pages: 505-511
10.1111/cas.12650
メディカル・サイエンス・ダイジェスト(ニューサイエンス社)
Volume: 41 Pages: 19-22
http://www.immgenet.jp/