Results 41 to 50 of about 97,335 (259)

Role of Phosphatidylinositol 3-Kinases in Chemotaxis in Dictyostelium [PDF]

Journal of Biological Chemistry, 2007
Experiments in several cell types revealed that local accumulation of phosphatidylinositol 3,4,5-triphosphate mediates the ability of cells to migrate during gradient sensing. We took a systematic approach to characterize the functions of the six putative Class I phosphatidylinositol 3-kinases (PI3K1-6) in Dictyostelium by creating a series of gene ...
Kosuke, Takeda, Atsuo T, Sasaki, Hyunjung, Ha, Hyun-A, Seung, Richard A, Firtel   +4 more
openaire   +2 more sources

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

Platelet-rich plasma alleviates endoplasmic reticulum stress via the IGF1R-PI3K-AKT pathway in temporomandibular joint osteoarthritis: an in vivo clinical trial

Journal of Translational Medicine
Background Temporomandibular joint osteoarthritis (TMJ-OA) is a subtype of temporomandibular joint disorder characterised by synovial inflammation and cartilage degradation.
Shasha Liu, Lin Sun, Jingke Fu, Bin Cai, Yongqiang Hao   +4 more
doaj   +1 more source

Structural and strategic landscape of PIKK protein family and their inhibitors: an overview

Frontiers in Bioscience-Landmark, 2020
Phosphatidylinositol-3 kinase-related kinases (PIKKs) is a class of six unique serine/threonine kinases that are characterized as high molecular mass colossal proteins present in multicellular organisms.
Deekshi Angira, Althaf Shaik, Vijay Thiruvenkatam   +2 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

GRB2, a protein known for a long time with a new autophagy-regulating function

Autophagy Reports
BECN1 (BCL2 interacting myosin like coiled protein) is a major regulator of autophagy and a haploinsufficient tumor suppressor. BECN1 binds to multiple proteins and it is part of at least two different class III phosphatidylinositol (PI) 3 Kinase (PI3KC3)
Silvia Vega-Rubin-de-Celis
doaj   +1 more source

PSMA redirects MAPK to PI3K-AKT signaling to promote prostate cancer progression

Molecular & Cellular Oncology, 2017
Increased Prostate Specific Membrane Antigen expression promotes tumor progression in prostate epithelium by dysregulating the β1-integrin/type I insulin-like growth factor receptor axis, resulting in a shift in signaling from the less aggressive mitogen-
Leslie Ann Caromile, Linda H. Shapiro
doaj   +1 more source

Loss of IGF‐1R impairs DNA‐PKcs recruitment to chromatin leading to defective end‐joining

Molecular Oncology, EarlyView.
IGF‐1R promotes radioresistance by facilitating DNA‐PKcs recruitment to chromatin, enabling non‐homologous end‐joining (NHEJ) repair of double‐strand breaks. Inhibition or loss of IGF‐1R disrupts this recruitment to damage sites, driving compensatory reliance on microhomology‐mediated end‐joining (MMEJ) repair.
Matthew O. Ellis, Jack V. Mills, Wojciech Niedzwiedz, Valentine M. Macaulay   +3 more
wiley   +1 more source

An emerging role for PI5P in T cell biology

Frontiers in Immunology, 2013
Phosphoinositides are critical regulators in cell biology. Phosphatidylinositol 4,5-bisphosphate, also known as PI(4,5)P2 or PIP2, was the first variety of phosphoinositide to enter in the T cell signaling scene.
Jacques A Nunes, Jacques A Nunes, Jacques A Nunes, Jacques A Nunes, Geoffrey eGuittard   +4 more
doaj   +1 more source