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Yao, Wantong; Rose, Johnathon L.; Wang, Wei; Seth, Sahil; Jiang, Hong; Taguchi, Ayumu; Liu, Jintan; Yan, Liang; Kapoor, Avnish; Hou, Pingping; Chen, Ziheng; Wang, Qiuyun; Nezi, Luigi; Xu, Zhaohui; Yao, Jun; Hu, Baoli; Pettazzoni, Piergiorgio F.; Ho, I Lin; Feng, Ningping; Ramamoorthy, Vandhana; Jiang, Shan; Deng, Pingna; Ma, Grace J.; Den, Peter; Tan, Zhi; Zhang, Shu Xing; Wang, Huamin; Wang, Alan Y.; Deem, Angela K.; Fleming, Jason B.; Carugo, Alessandro; Heffernan, Timothy P.; Maitra, Anirban; Viale, Andrea; Ying, Haoqiang; Hanash, Samir; DePinho, Ronald A.; Draetta, Giulio F.
Nature (London), 03/2019, Letnik: 568, Številka: 7752Journal Article
Pancreatic ductal adenocarcinoma (PDAC) remains recalcitrant to all forms of cancer treatment and carries a dismal 5-year survival rate of 8% 1 . Inhibition of oncogenic KRAS (hereafter KRAS*), the earliest lesion in disease development that is present in >90% of PDAC, and its signaling surrogates has yielded encouraging preclinical results with experimental agents 2 - 4 . However, KRAS*-independent disease recurrence following genetic extinction of Kras* in mouse models anticipates the need for co-extinction strategies 5 , 6 . Multiple oncogenic processes are initiated at the cell surface, where KRAS* physically and functionally interacts to direct signaling essential for malignant transformation and tumor maintenance. Insights into the complexity of the functional surfaceome have been technologically limited until recently, and, in the case of PDAC, the genetic control of the function and composition of the PDAC surfaceome in the context of KRAS* signaling remains largely unexplored. Here, we developed an unbiased, functional target discovery platform to query KRAS*-dependent changes of the PDAC surfaceome, which uncovered syndecan-1 (SDC1) as a protein upregulated at the cell surface by KRAS*. Cell surface localization of SDC1 is essential for disease maintenance and progression, where it regulates macropinocytosis, an essential metabolic pathway that fuels PDAC cell growth. Thus, our study forges a mechanistic link between KRAS* signaling and a targetable molecule driving nutrient salvage pathways in PDAC and validates oncogene-driven surfaceome annotation as a strategy to identify cancer-specific vulnerabilities.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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