Results 81 to 90 of about 40,110 (297)

IMPDH inhibition enhances cytarabine efficacy in SAMHD1‐expressing leukaemia cells via guanine nucleotide depletion

Molecular Oncology, EarlyView.
Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla, Christopher Dirks, Caroline Eiden, Sonja K. Fesenmayer, Femke M. Hormann, Yolande Klootsema, Ingrid Lilienthal, Si Min Zhang, Nikolas Herold, Sean G. Rudd   +9 more
wiley   +1 more source

Inositol pyrophosphate catabolism by three families of phosphatases regulates plant growth and development.

PLoS Genetics
Inositol pyrophosphates (PP-InsPs) are nutrient messengers whose cellular levels are precisely regulated. Diphosphoinositol pentakisphosphate kinases (PPIP5Ks) generate the active signaling molecule 1,5-InsP8.
Florian Laurent, Simon M Bartsch, Anuj Shukla, Felix Rico-Resendiz, Daniel Couto, Christelle Fuchs, Joël Nicolet, Sylvain Loubéry, Henning J Jessen, Dorothea Fiedler, Michael Hothorn   +10 more
doaj   +1 more source

Manipulation of macrophage signaling by Leishmania virulence factors

Virulence
Leishmania, a macrophage-residing parasite, expresses virulence factors that intercept macrophage signaling and inflicts leishmaniasis. Recently described virulence factors- eEF-1α (eukaryotic elongation factor), LmjF_36_3850 (Leishmania major F_36_3850),
Dhiraj Gurjar, Neelam Bodhale, Divanshu Shukla, Debadatta Nayak, Nibedita Lenka, Bhaskar Saha   +5 more
doaj   +1 more source

PTPσ inhibitors promote hematopoietic stem cell regeneration. [PDF]

, 2019
Receptor type protein tyrosine phosphatase-sigma (PTPσ) is primarily expressed by adult neurons and regulates neural regeneration. We recently discovered that PTPσ is also expressed by hematopoietic stem cells (HSCs).
Chute, John P, Damoiseaux, Robert, Diers, Emelyne, Fang, Tiancheng, Himburg, Heather, Jin Gim, Hyo, Jung, Michael E, Kan, Jenny, Li, Michelle, McBride, William, Pohl, Katherine, Quarmyne, Mamle, Roos, Martina, Termini, Christina M, Whitelegge, Julian, Yan, Xiao, Zhang, Yurun, Zhao, Liman   +17 more
core   +1 more source

Protein phosphatase AP2C1 negatively regulates basal resistance and defense responses to Pseudomonas syringae [PDF]

, 2017
Mitogen-activated protein kinases (MAPKs) mediate plant immune responses to pathogenic bacteria. However, less is known about the cell autonomous negative regulatory mechanism controlling basal plant immunity. We report the biological role of Arabidopsis
Alois Schweighofer, Bernd Mueller-Roeber, Cheng, Cyril Zipfel, Dempsey, Felix Mauch, Freddy Boutrot, Han, Hruz, Irute Meskiene, Justinas Simulis, Justyna Boniecka, Kotryna Kvederaviciute, Lassowskat, Michael Stumpe, Rasmussen, Salma Balazadeh, Volodymyr Shubchynskyy   +17 more
core   +1 more source

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

Molecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch, Isabel Vogel, Sina Nokodian, Johanna Moeller, Antonia Blechschmidt, Vicky Hecht, Vanessa Kuentzel, Katharina Thiedig, Melissa Schwab, Oliver Schilling, Holger Bronger, Marion Kiechle, Viktor Magdolen, Tobias Dreyer   +13 more
wiley   +1 more source

Regulation of CNS and motor axon guidance in Drosophila by the receptor tyrosine phosphatase DPTP52F [PDF]

, 2001
Receptor-linked protein tyrosine phosphatases (RPTPs) regulate axon guidance and synaptogenesis in Drosophila embryos and larvae. We describe DPTP52F, the sixth RPTP to be discovered in Drosophila.
Knirr, Matthias, Schindelholz, Benno, Warrior, Rahul, Zinn, Kai   +3 more
core  

Mitogen-activated protein kinases and mitogen kinase phosphatase 1: a critical interplay in macrophage biology [PDF]

, 2016
Macrophages are necessary in multiple processes during the immune response or inflammation. This review emphasizes the critical role of the mitogen-activated protein kinases (MAPKs) and mitogen kinase phosphatase-1 (MKP-1) in the functional activities of
Celada Cotarelo, Antonio, Lloberas Cavero, Jorge, Tur Torres, Juan, Valverde Estrella, Lorena, Vico Rivero, Tania   +4 more
core   +1 more source

Dual-Specificity Phosphatase 6 Deficiency Attenuates Arterial-Injury-Induced Intimal Hyperplasia in Mice [PDF]

, 2023
Candra Dwipayana Hamdin, Meng‐Ling Wu, Chen‐Mei Chen, Yen‐Chun Ho, Wei‐Cheng Jiang, Pei‐Yu Gung, Hua‐Hui Ho, Huai‐Chia Chuang, Tse‐Hua Tan, Shaw‐Fang Yet   +9 more
openalex   +1 more source

Proteasome inhibitor, ixazomib prevents topoisomerase‐I degradation and reverses irinotecan resistance in colorectal cancer

Molecular Oncology, EarlyView.
Ixazomib inhibits proteasome‐mediated degradation of topoisomerase I induced by irinotecan, thereby restoring drug sensitivity and promoting tumor cell death in colorectal cancer. Irinotecan, a topoisomerase I (topoI) inhibitor, is widely used for colorectal cancer, but resistance remains a major clinical challenge.
Yuho Ebata, Koji Ando, Hirofumi Hasuda, Koshi Mimori, Elizabeth C. Unan, Siddhartha Pulukuri, Aahana Tiku, Allison Berger, Eiji Oki, Ajit Bharti, Tomoharu Yoshizumi   +10 more
wiley   +1 more source