Abstract |
Although immune checkpoint blockade therapies have demonstrated clinical efficacy in cancer treatment, harnessing this strategy is largely encumbered by resistance in multiple cancer settings. Here, we show that tumor-infiltrating T cells are severely exhausted in the microsatellite stable (MSS) colorectal cancer (CRC), a representative example of PD-1 blockade-resistant tumors. In MSS CRC, we found wound healing signature to be up-regulated and that T cell exhaustion is driven by vascular endothelial growth factor-A ( VEGF-A). We report that VEGF-A induces the expression of transcription factor TOX in T cells to drive exhaustion-specific transcription program in T cells. Using a combination of in vitro, ex vivo, and in vivo mouse studies, we demonstrate that combined blockade of PD-1 and VEGF-A restores the antitumor functions of T cells, resulting in better control of MSS CRC tumors.
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Authors | Chang Gon Kim, Mi Jang, Youngun Kim, Galam Leem, Kyung Hwan Kim, Hoyoung Lee, Tae-Shin Kim, Seong Jin Choi, Hyung-Don Kim, Ji Won Han, Minsuk Kwon, Jong Hoon Kim, Andrew J Lee, Su Kyung Nam, Seok-Joo Bae, Sat Byol Lee, Sang Joon Shin, Sung Ho Park, Joong Bae Ahn, Inkyung Jung, Kang Young Lee, Su-Hyung Park, Hoguen Kim, Byung Soh Min, Eui-Cheol Shin |
Journal | Science immunology
(Sci Immunol)
Vol. 4
Issue 41
(11 08 2019)
ISSN: 2470-9468 [Electronic] United States |
PMID | 31704735
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Copyright | Copyright © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. |
Chemical References |
- High Mobility Group Proteins
- Homeodomain Proteins
- PDCD1 protein, human
- Pdcd1 protein, mouse
- Programmed Cell Death 1 Receptor
- Rhox8 protein, mouse
- TOX protein, human
- Vascular Endothelial Growth Factor A
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Topics |
- Animals
- Caco-2 Cells
- Colorectal Neoplasms
(immunology, pathology)
- High Mobility Group Proteins
(immunology)
- Homeodomain Proteins
(immunology)
- Humans
- Mice
- Mice, Inbred C57BL
- Microsatellite Repeats
(immunology)
- Programmed Cell Death 1 Receptor
(immunology)
- T-Lymphocytes
(immunology)
- Vascular Endothelial Growth Factor A
(immunology)
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