Results 101 to 110 of about 333,854 (331)

ATF4‐mediated stress response as a therapeutic vulnerability in chordoma

open access: yesMolecular Oncology, EarlyView.
We screened 5 chordoma cell lines against 100+ inhibitors of epigenetic and metabolic pathways and kinases and identified halofuginone, a tRNA synthetase inhibitor. Mechanistically halofuginone induces an integrated stress response, with eIF2alpha phosphorylation, activation of ATF4 and its target genes CHOP, ASNS, INHBE leading to cell death ...
Lucia Cottone   +11 more
wiley   +1 more source

Identification of protein tyrosine kinases with oncogenic potential using a retroviral insertion mutagenesis screen

open access: yesHaematologica, 2009
Protein tyrosine kinases form a large family of signaling proteins implicated in both normal and malignant cell signaling. The aim of this study was to identify protein tyro-sine kinases that can transform hematopoietic cells to growth factor independent
Els Lierman   +3 more
doaj   +1 more source

Recurrent cancer‐associated ERBB4 mutations are transforming and confer resistance to targeted therapies

open access: yesMolecular Oncology, EarlyView.
We show that the majority of the 18 analyzed recurrent cancer‐associated ERBB4 mutations are transforming. The most potent mutations are activating, co‐operate with other ERBB receptors, and are sensitive to pan‐ERBB inhibitors. Activating ERBB4 mutations also promote therapy resistance in EGFR‐mutant lung cancer.
Veera K. Ojala   +15 more
wiley   +1 more source

Alternative Splicing in Oncogenic Kinases: From Physiological Functions to Cancer

open access: yesJournal of Nucleic Acids, 2012
Among the 518 protein kinases encoded by the human kinome, several of them act as oncoproteins in human cancers. Like other eukaryotic genes, oncogenes encoding protein kinases are frequently subjected to alternative splicing in coding as well as ...
Sabine Druillennec   +2 more
doaj   +1 more source

Role of Non Receptor Tyrosine Kinases in Hematological Malignances and its Targeting by Natural Products

open access: yesMolecular Cancer, 2018
Tyrosine kinases belong to a family of enzymes that mediate the movement of the phosphate group to tyrosine residues of target protein, thus transmitting signals from the cell surface to cytoplasmic proteins and the nucleus to regulate physiological ...
Kodappully S. Siveen   +8 more
doaj   +1 more source

Protein tyrosine phosphatases: the problems of a growing family [PDF]

open access: yes, 1992
Protein tyrosine phosphorylation is now recognized as an important component of the control of many fundamental aspects of cellular function, including growth and differentiation, cell cycle and cytoskeletal integrity.
Brady-Kalnay, S. M.   +7 more
core   +1 more source

Dammarenediol II enhances etoposide‐induced apoptosis by targeting O‐GlcNAc transferase and Akt/GSK3β/mTOR signaling in liver cancer

open access: yesMolecular Oncology, EarlyView.
Etoposide induces DNA damage, activating p53‐dependent apoptosis via caspase‐3/7, which cleaves PARP1. Dammarenediol II enhances this apoptotic pathway by suppressing O‐GlcNAc transferase activity, further decreasing O‐GlcNAcylation. The reduction in O‐GlcNAc levels boosts p53‐driven apoptosis and influences the Akt/GSK3β/mTOR signaling pathway ...
Jaehoon Lee   +8 more
wiley   +1 more source

The Role of Protein Kinases in Antigen-activation of Peripheral Blood Mononuclear Cells of Schistosoma mansoni Infected Individuals

open access: yesMemorias do Instituto Oswaldo Cruz, 1997
T cell recognition of antigens displayed on the surface of antigen presenting cell results in rapid activation of protein tyrosine kinases and kinase C.
Almeida Célia A, Goes Alfredo M
doaj  

The Shc1 adaptor simultaneously balances Stat1 and Stat3 activity to promote breast cancer immune suppression

open access: yesNature Communications, 2017
Tyrosine kinase signalling in cancer cells promotes immune evasion. Here, the authors show that tyrosine kinases engage scaffold protein Shc1 to promote immunosuppression in breast cancer by simultaneously activating STAT3 immunosuppressive signals and ...
Ryuhjin Ahn   +14 more
doaj   +1 more source

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