Results 91 to 100 of about 230,401 (303)

Castration‐resistant prostate cancer cells are addicted to the high activity of cyclin‐dependent kinase 2

Molecular Oncology, EarlyView.
We show that emergence of castration‐resistant prostate (CRPC) is associated with significant upregulation of cyclins that positively regulate cyclin‐dependent kinase 2 (CDK2) and concomitant downregulation of CDK4 cyclins. This renders CRPC cells dependent on the high activity of CDK2, and CDK2 inhibitors synergistically sensitize CRPC cells to both ...
Joyeeta Chatterjee, Alessia Marin, Shivani Yalala, Harri M. Itkonen   +3 more
wiley   +1 more source

Unraveling the epigenetic code in cancer cell–tumor microenvironment crosstalk

Molecular Oncology, EarlyView.
Epigenetic regulation is a key driver of cancer development and progression. Diverse epigenetic alterations in cancer cells and components of the tumor microenvironment (TME) orchestrate their communication through multiple mechanisms. We discuss how the epigenetic code coordinates bidirectional cancer cell–TME crosstalk to promote cancer progression ...
Ji Hoon Park, Mi‐Young Kim
wiley   +1 more source

Regulation of SCF Ubiquitin Ligases by Jab1/Csn5 and the Cop9 Signalosome [PDF]

, 2006
SCF ubiquitin ligases regulate the ubiquitin-dependent proteolysis of a myriad of substrate proteins, including p27, Cyclin E, and IkBa. To further gain insight into SCF regulation and function, we purified SCF from mammalian cells and found the Cop9 ...
Cope, Gregory Allan
core   +1 more source

Attenuation of HOIL-1L ligase activity promotes systemic autoimmune disorders by augmenting linear ubiquitin signaling

JCI Insight
Linear ubiquitin chains, which are generated specifically by the linear ubiquitin assembly complex (LUBAC) ubiquitin ligase, play crucial roles in immune signaling, including NF-κB activation. LUBAC comprises catalytic large isoform of heme-oxidized iron
Yasuhiro Fuseya, Keiichiro Kadoba, Xiaoxi Liu, Hiroyuki Suetsugu, Takeshi Iwasaki, Koichiro Ohmura, Takayuki Sumida, Yuta Kochi, Akio Morinobu, Chikashi Terao, Kazuhiro Iwai   +10 more
doaj   +1 more source

A pathogen type III effector with a novel E3 ubiquitin ligase architecture.

PLoS Pathogens, 2013
Type III effectors are virulence factors of Gram-negative bacterial pathogens delivered directly into host cells by the type III secretion nanomachine where they manipulate host cell processes such as the innate immunity and gene expression.
Alexander U Singer, Sebastian Schulze, Tatiana Skarina, Xiaohui Xu, Hong Cui, Lennart Eschen-Lippold, Monique Egler, Tharan Srikumar, Brian Raught, Justin Lee, Dierk Scheel, Alexei Savchenko, Ulla Bonas   +12 more
doaj   +1 more source

Arginine methylation as a regulatory ratchet in cancer: From substrate selection to malignant‐state stabilization

Molecular Oncology, EarlyView.
Arginine methylation can be viewed as a persistence‐prone post‐translational modification regulated by a network of PRMTs. Competitive and compensatory interactions among PRMTs can redistribute methylation across substrate pools shaped by sequence, structural, spatial, and environmental layers, reinforcing RNA‐processing, chromatin, and signaling ...
So Hyun Kwon, Ji Min Lee
wiley   +1 more source

Cytosolic entry of Shiga-like toxin A chain from the yeast endoplasmic reticulum requires catalytically active Hrd1p [PDF]

, 2012
Background Escherichia coli Shiga-like toxin 1 normally traffics to the endoplasmic reticulum (ER) in sensitive mammalian cells from where the catalytic A chain (SLTxA1) dislocates to the cytosol to inactivate ribosomes.
Lynne M. Roberts (150050), J Michael Lord, Roberts Lynne M., Spooner, Robert A., Hampton Randolph Y., Lord J. Michael, Robert A. Spooner (150027), Spooner Robert A., Lord, J. Michael, Shuyu Li (18735), Roberts, Lynne M., Randolph Y Hampton, Lynne M Roberts, Shuyu Li, Lord, Mike, J. Michael Lord (150042), Li, Shuyu, Roberts, L. M. (Lynne M.), Robert A Spooner, Randolph Y. Hampton (150034), Li Shuyu, Hampton, Randolph Y.   +21 more
core   +2 more sources

Mechanisms and therapeutic opportunities of the ribotoxic stress response in cancer

Molecular Oncology, EarlyView.
Cancer cells' high translational demand creates opportunities to therapeutically target ribosome function. Ribosome stalling and collisions activate ZAKα and the ribotoxic stress response (RSR), which can trigger rapid, p53‐independent apoptosis in cancer.
Anastassiya Kim, Maryam Aslam, Elouise Torruella, Alphons Sony, Asif Rahman, Simira Smith, Columba de la Parra, Moira Sauane   +7 more
wiley   +1 more source

UBE2QL1 is Disrupted by a Constitutional Translocation Associated with Renal Tumor Predisposition and is a Novel Candidate Renal Tumor Suppressor Gene [PDF]

, 2013
Investigation of rare familial forms of renal cell carcinoma (RCC) has led to the identification of genes such as VHL and MET that are also implicated in the pathogenesis of sporadic RCC. In order to identify a novel candidate renal tumor suppressor gene,
Hodgson, S, Morris, Mark R., Turnell, Andrew S., Woodward, ER, Prigmore, Elena, Woodward, Emma R.; id_orcid, Wake, NC, Wake, Naomi C., Gribble, Susan M., Ricketts, Christopher J., Skytte, AB, Brown, Michael, Banks, RE, Morris, MR, Prigmore, E, Maher, ER, Woodward, Emma R., Clarke, Noel, Hodgson, Shirley, Skytte, Anne-bine, Ricketts, CJ, Turnell, AS, Brown, Michael; id_orcid, Maher, Eamonn R., Clarke, N, Banks, Rosamonde E., Gribble, SM, Brown, M, Skytte, Anne Bine, Wake, N, Clarke, Noel W, Brown, Michael D, Ricketts, C, Woodward, E, Skytte, A-B, Maher, E, Morris, M, Banks, R, Turnell, A, Gribble, S   +39 more
core   +1 more source

Synthesis of Isomeric Phosphoubiquitin Chains Reveals that Phosphorylation Controls Deubiquitinase Activity and Specificity

Cell Reports, 2016
Ubiquitin is post-translationally modified by phosphorylation at several sites, but the consequences of these modifications are largely unknown. Here, we synthesize multi-milligram quantities of ubiquitin phosphorylated at serine 20, serine 57, and ...
Nicolas Huguenin-Dezot, Virginia De Cesare, Julien Peltier, Axel Knebel, Yosua Adi Kristaryianto, Daniel T. Rogerson, Yogesh Kulathu, Matthias Trost, Jason W. Chin   +8 more
doaj   +1 more source