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Full-Text Articles in Medical Cell Biology
Interaction Of The Oncoprotein Transcription Factor Myc With Its Chromatin Cofactor Wdr5 Is Essential For Tumor Maintenance., Lance R. Thomas, Clare M. Adams, Jing Wang, April M. Weissmiller, Joy Creighton, Shelly L. Lorey, Qi Liu, Stephen W. Fesik, Christine M. Eischen, William P. Tansey
Interaction Of The Oncoprotein Transcription Factor Myc With Its Chromatin Cofactor Wdr5 Is Essential For Tumor Maintenance., Lance R. Thomas, Clare M. Adams, Jing Wang, April M. Weissmiller, Joy Creighton, Shelly L. Lorey, Qi Liu, Stephen W. Fesik, Christine M. Eischen, William P. Tansey
Department of Cancer Biology Faculty Papers
The oncoprotein transcription factor MYC is overexpressed in the majority of cancers. Key to its oncogenic activity is the ability of MYC to regulate gene expression patterns that drive and maintain the malignant state. MYC is also considered a validated anticancer target, but efforts to pharmacologically inhibit MYC have failed. The dependence of MYC on cofactors creates opportunities for therapeutic intervention, but for any cofactor this requires structural understanding of how the cofactor interacts with MYC, knowledge of the role it plays in MYC function, and demonstration that disrupting the cofactor interaction will cause existing cancers to regress. One cofactor …
Identification Of Monocyte-Like Precursors Of Granulocytes In Cancer As A Mechanism For Accumulation Of Pmn-Mdscs., Jérôme Mastio, Thomas Condamine, George Dominguez, Andrew V Kossenkov, Laxminarasimha Donthireddy, Filippo Veglia, Cindy Lin, Fang Wang, Shuyu Fu, Jie Zhou, Patrick Viatour, Sergio Lavilla-Alonso, Alexander T. Polo, Evgenii N. Tcyganov, Charles Mulligan, Brian Nam, Joseph Bennett, Gregory Masters, Michael Guarino, Amit Kumar, Yulia Nefedova, Robert H. Vonderheide, Lucia R. Languino, Scott I. Abrams, Dmitry I. Gabrilovich
Identification Of Monocyte-Like Precursors Of Granulocytes In Cancer As A Mechanism For Accumulation Of Pmn-Mdscs., Jérôme Mastio, Thomas Condamine, George Dominguez, Andrew V Kossenkov, Laxminarasimha Donthireddy, Filippo Veglia, Cindy Lin, Fang Wang, Shuyu Fu, Jie Zhou, Patrick Viatour, Sergio Lavilla-Alonso, Alexander T. Polo, Evgenii N. Tcyganov, Charles Mulligan, Brian Nam, Joseph Bennett, Gregory Masters, Michael Guarino, Amit Kumar, Yulia Nefedova, Robert H. Vonderheide, Lucia R. Languino, Scott I. Abrams, Dmitry I. Gabrilovich
Department of Cancer Biology Faculty Papers
We have identified a precursor that differentiates into granulocytes in vitro and in vivo yet belongs to the monocytic lineage. We have termed these cells monocyte-like precursors of granulocytes (MLPGs). Under steady state conditions, MLPGs were absent in the spleen and barely detectable in the bone marrow (BM). In contrast, these cells significantly expanded in tumor-bearing mice and differentiated to polymorphonuclear myeloid-derived suppressor cells (PMN-MDSCs). Selective depletion of monocytic cells had no effect on the number of granulocytes in naive mice but decreased the population of PMN-MDSCs in tumor-bearing mice by 50%. The expansion of MLPGs was found to be …
The Bone Extracellular Matrix As An Ideal Milieu For Cancer Cell Metastases., Alexus D. Kolb, Karen M. Bussard
The Bone Extracellular Matrix As An Ideal Milieu For Cancer Cell Metastases., Alexus D. Kolb, Karen M. Bussard
Department of Cancer Biology Faculty Papers
Bone is a preferential site for cancer metastases, including multiple myeloma, prostate, and breast cancers.The composition of bone, especially the extracellular matrix (ECM), make it an attractive site for cancer cell colonization and survival. The bone ECM is composed of living cells embedded within a matrix composed of both organic and inorganic components. Among the organic components, type I collagen provides the tensile strength of bone. Inorganic components, including hydroxyapatite crystals, are an integral component of bone and provide bone with its rigidity. Under normal circumstances, two of the main cell types in bone, the osteoblasts and osteoclasts, help to …
M6a Mrna Demethylase Fto Regulates Melanoma Tumorigenicity And Response To Anti-Pd-1 Blockade, Seungwon Yang, Jiangbo Wei, Yan-Hong Cui, Gayoung Park, Palak Shah, Yu Deng, Andrew E. Aplin, Zhike Lu, Seungmin Hwang, Chuan He, Yu-Ying He
M6a Mrna Demethylase Fto Regulates Melanoma Tumorigenicity And Response To Anti-Pd-1 Blockade, Seungwon Yang, Jiangbo Wei, Yan-Hong Cui, Gayoung Park, Palak Shah, Yu Deng, Andrew E. Aplin, Zhike Lu, Seungmin Hwang, Chuan He, Yu-Ying He
Department of Cancer Biology Faculty Papers
Melanoma is one of the most deadly and therapy-resistant cancers. Here we show that N6-methyladenosine (m6A) mRNA demethylation by fat mass and obesity-associated protein (FTO) increases melanoma growth and decreases response to anti-PD-1 blockade immunotherapy. FTO level is increased in human melanoma and enhances melanoma tumorigenesis in mice. FTO is induced by metabolic starvation stress through the autophagy and NF-κB pathway. Knockdown of FTO increases m6A methylation in the critical protumorigenic melanoma cell-intrinsic genes including PD-1 (PDCD1), CXCR4, and SOX10, leading to increased RNA decay through the m6A reader YTHDF2. Knockdown of …
Tumor-Derived Extracellular Vesicles Require Β1 Integrins To Promote Anchorage-Independent Growth., Rachel M. Derita, Aejaz Sayeed, Vaughn Garcia, Shiv Ram Krishn, Christopher D. Shields, Srawasti Sarker, Andrea Friedman, Peter Mccue, Sudheer Kumar Molugu, Ulrich Rodeck, Adam P. Dicker, Lucia R. Languino
Tumor-Derived Extracellular Vesicles Require Β1 Integrins To Promote Anchorage-Independent Growth., Rachel M. Derita, Aejaz Sayeed, Vaughn Garcia, Shiv Ram Krishn, Christopher D. Shields, Srawasti Sarker, Andrea Friedman, Peter Mccue, Sudheer Kumar Molugu, Ulrich Rodeck, Adam P. Dicker, Lucia R. Languino
Department of Cancer Biology Faculty Papers
The β1 integrins, known to promote cancer progression, are abundant in extracellular vesicles (EVs). We investigated whether prostate cancer (PrCa) EVs affect anchorage-independent growth and whether β1 integrins are required for this effect. Specifically using a cell-line-based genetic rescue and an in vivo PrCa model, we show that gradient-purified small EVs (sEVs) from either cancer cells or blood from tumor-bearing TRAMP (transgenic adenocarcinoma of the mouse prostate) mice promote anchorage-independent growth of PrCa cells. In contrast, sEVs from cultured PrCa cells harboring a short hairpin RNA to β1, from wild-type mice or from TRAMP mice carrying a β1 conditional ablation …