Title |
Stress Granules Determine the Development of Obesity-Associated Pancreatic Cancer.
|
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Published in |
Cancer Discovery, June 2022
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DOI | 10.1158/2159-8290.cd-21-1672 |
Pubmed ID | |
Authors |
Guillaume Fonteneau, Alexandra Redding, Hannah Hoag-Lee, Edward S Sim, Stefan Heinrich, Matthias M Gaida, Elda Grabocka |
Abstract |
Obesity is a global epidemic and a major predisposing factor for cancer. Increasing evidence shows that obesity-associated stress is a key driver of cancer risk and progression. Previous work has identified the phase-separation organelles, stress granules (SGs), as mutant KRAS-dependent mediators of stress adaptation. However, the dependence of tumorigenesis on these organelles is unknown. Here, we establish a causal link between SGs and pancreatic ductal adenocarcinoma (PDAC). Importantly, we uncover that dependence on SGs is drastically heightened in obesity-associated PDAC. Furthermore, we identify a previously unknown regulator and component of SGs, namely the serine/arginine protein kinase 2 (SRPK2), as a specific determinant of SG formation in obesity-associated PDAC. We show that SRPK2-mediated SG formation in obesity-associated PDAC is driven by hyperactivation of the IGF1/PI3K/mTOR/S6K1 pathway, and that S6K1 inhibition selectively attenuates SGs and impairs obesity-associated PDAC development. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 41 | 49% |
United Kingdom | 2 | 2% |
India | 2 | 2% |
Tanzania, United Republic of | 1 | 1% |
Austria | 1 | 1% |
Paraguay | 1 | 1% |
France | 1 | 1% |
Australia | 1 | 1% |
Italy | 1 | 1% |
Other | 1 | 1% |
Unknown | 31 | 37% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 39 | 47% |
Scientists | 31 | 37% |
Practitioners (doctors, other healthcare professionals) | 8 | 10% |
Science communicators (journalists, bloggers, editors) | 5 | 6% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 24 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 3 | 13% |
Researcher | 3 | 13% |
Unspecified | 1 | 4% |
Professor | 1 | 4% |
Student > Doctoral Student | 1 | 4% |
Other | 2 | 8% |
Unknown | 13 | 54% |
Readers by discipline | Count | As % |
---|---|---|
Biochemistry, Genetics and Molecular Biology | 5 | 21% |
Medicine and Dentistry | 4 | 17% |
Unspecified | 1 | 4% |
Economics, Econometrics and Finance | 1 | 4% |
Agricultural and Biological Sciences | 1 | 4% |
Other | 0 | 0% |
Unknown | 12 | 50% |