Tumor-associated nonmyelinating Schwann cell-expressed PVT1 promotes pancreatic cancer kynurenine pathway and tumor immune exclusion.
Tumor-associated nonmyelinating Schwann cell-expressed PVT1 promotes pancreatic cancer kynurenine pathway and tumor immune exclusion.
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DOI：
10.1126/sciadv.add6995
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发表时间：
2023-02-03
期刊：
影响因子：
13.6
通讯作者：
中科院分区：
文献类型：
--
作者：
治疗胰腺导管腺癌（PDAC）的主要障碍之一是其免疫抗性微环境。雪旺细胞在PDAC中的功能重要性和分子机制在很大程度上仍然是未知的。我们鉴定了PDAC中肿瘤相关的非髓鞘性雪旺细胞（TASc）的基因特征，并表明TASc的丰度与免疫抑制肿瘤微环境和PDAC患者的不良预后相关。胰腺特异性TASc的缺失促进了PDAC肿瘤的发生。tasc表达的长链非编码RNA （lncRNA）浆细胞瘤变异易位1 （PVT1）是由肿瘤细胞产生的白细胞介素-6触发的。机制上，PVT1调节了RAF原癌基因丝氨酸/苏氨酸蛋白激酶介导的TASc中色氨酸2,3-双加氧酶的磷酸化，促进了其催化色氨酸生成犬尿氨酸的酶活性。tasc表达的PVT1的缺失抑制PDAC肿瘤的生长。此外，使用小分子抑制剂去除TASc可以有效地使PDAC对免疫治疗增敏，这表明TASc在PDAC免疫抗性中起重要作用。靶向肿瘤相关的非髓鞘性雪旺细胞改善免疫治疗难治性胰腺癌的反应。
One of the major obstacles to treating pancreatic ductal adenocarcinoma (PDAC) is its immunoresistant microenvironment. The functional importance and molecular mechanisms of Schwann cells in PDAC remains largely elusive. We characterized the gene signature of tumor-associated nonmyelinating Schwann cells (TASc) in PDAC and indicated that the abundance of TASc was correlated with immune suppressive tumor microenvironment and the unfavorable outcome of patients with PDAC. Depletion of pancreatic-specific TASc promoted the tumorigenesis of PDAC tumors. TASc-expressed long noncoding RNA (lncRNA) plasmacytoma variant translocation 1 (PVT1) was triggered by the tumor cell–produced interleukin-6. Mechanistically, PVT1 modulated RAF proto-oncogene serine/threonine protein kinase–mediated phosphorylation of tryptophan 2,3-dioxygenase in TASc, facilitating its enzymatic activities in catalysis of tryptophan to kynurenine. Depletion of TASc-expressed PVT1 suppressed PDAC tumor growth. Furthermore, depletion of TASc using a small-molecule inhibitor effectively sensitized PDAC to immunotherapy, signifying the important roles of TASc in PDAC immune resistance. Targeting tumor-associated non-myelinating Schwann cells improves response of immunotherapy-refractory pancreatic cancer.
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影响因子：
64.8
作者：
Jumper J;Evans R;Pritzel A;Green T;Figurnov M;Ronneberger O;Tunyasuvunakool K;Bates R;Žídek A;Potapenko A;Bridgland A;Meyer C;Kohl SAA;Ballard AJ;Cowie A;Romera-Paredes B;Nikolov S;Jain R;Adler J;Back T;Petersen S;Reiman D;Clancy E;Zielinski M;Steinegger M;Pacholska M;Berghammer T;Bodenstein S;Silver D;Vinyals O;Senior AW;Kavukcuoglu K;Kohli P;Hassabis D
通讯作者：
Hassabis D
影响因子：
11.2
作者：
Goehrig, Andreas;Detjen, Katharina M.;Fischer, Christian
通讯作者：
Fischer, Christian
影响因子：
82.9
作者：
Auslander N;Zhang G;Lee JS;Frederick DT;Miao B;Moll T;Tian T;Wei Z;Madan S;Sullivan RJ;Boland G;Flaherty K;Herlyn M;Ruppin E
通讯作者：
Ruppin E
影响因子：
64.8
作者：
Biankin, Andrew V.;Waddell, Nicola;Kassahn, Karin S.;Gingras, Marie-Claude;Muthuswamy, Lakshmi B.;Johns, Amber L.;Miller, David K.;Wilson, Peter J.;Patch, Ann-Marie;Wu, Jianmin;Chang, David K.;Cowley, Mark J.;Gardiner, Brooke B.;Song, Sarah;Harliwong, Ivon;Idrisoglu, Senel;Nourse, Craig;Nourbakhsh, Ehsan;Manning, Suzanne;Wani, Shivangi;Gongora, Milena;Pajic, Marina;Scarlett, Christopher J.;Gill, Anthony J.;Pinho, Andreia V.;Rooman, Ilse;Anderson, Matthew;Holmes, Oliver;Leonard, Conrad;Taylor, Darrin;Wood, Scott;Xu, Qinying;Nones, Katia;Fink, J. Lynn;Christ, Angelika;Bruxner, Tim;Cloonan, Nicole;Kolle, Gabriel;Newell, Felicity;Pinese, Mark;Mead, R. Scott;Humphris, Jeremy L.;Kaplan, Warren;Jones, Marc D.;Colvin, Emily K.;Nagrial, Adnan M.;Humphrey, Emily S.;Chou, Angela;Chin, Venessa T.;Chantrill, Lorraine A.;Mawson, Amanda;Samra, Jaswinder S.;Kench, James G.;Lovell, Jessica A.;Daly, Roger J.;Merrett, Neil D.;Toon, Christopher;Epari, Krishna;Nguyen, Nam Q.;Barbour, Andrew;Zeps, Nikolajs;Kakkar, Nipun;Zhao, Fengmei;Wu, Yuan Qing;Wang, Min;Muzny, Donna M.;Fisher, William E.;Brunicardi, F. Charles;Hodges, Sally E.;Reid, Jeffrey G.;Drummond, Jennifer;Chang, Kyle;Han, Yi;Lewis, Lora R.;Dinh, Huyen;Buhay, Christian J.;Beck, Timothy;Timms, Lee;Sam, Michelle;Begley, Kimberly;Brown, Andrew;Pai, Deepa;Panchal, Ami;Buchner, Nicholas;De Borja, Richard;Denroche, Robert E.;Yung, Christina K.;Serra, Stefano;Onetto, Nicole;Mukhopadhyay, Debabrata;Tsao, Ming-Sound;Shaw, Patricia A.;Petersen, Gloria M.;Gallinger, Steven;Hruban, Ralph H.;Maitra, Anirban;Iacobuzio-Donahue, Christine A.;Schulick, Richard D.;Wolfgang, Christopher L.;Morgan, Richard A.;Lawlor, Rita T.;Capelli, Paola;Corbo, Vincenzo;Scardoni, Maria;Tortora, Giampaolo;Tempero, Margaret A.;Mann, Karen M.;Jenkins, Nancy A.;Perez-Mancera, Pedro A.;Adams, David J.;Largaespada, David A.;Wessels, Lodewyk F. A.;Rust, Alistair G.;Stein, Lincoln D.;Tuveson, David A.;Copeland, Neal G.;Musgrove, Elizabeth A.;Scarpa, Aldo;Eshleman, James R.;Hudson, Thomas J.;Sutherland, Robert L.;Wheeler, David A.;Pearson, John V.;McPherson, John D.;Gibbs, Richard A.;Grimmond, Sean M.
通讯作者：
Grimmond, Sean M.
影响因子：
10.5
作者：
Ancrile, Brooke;Lim, Kian-Huat;Counter, Christopher M.
通讯作者：
Counter, Christopher M.