Results 71 to 80 of about 240,985 (333)

Pyruvate Kinase Revisited [PDF]

open access: yesJournal of Biological Chemistry, 2005
Desde hace más de 50 años, se sabe que el K+ es un activador esencial de la piruvato quinasa (Kachmar, J. F., y Boyer, P. D. (1953) J. Biol. Chem. 200, 669-683). Sin embargo, el papel de K+ en la catálisis por piruvato quinasa no se ha entendido completamente.
Jesús Oria‐Hernández   +3 more
openaire   +1 more source

Modulation of PKM alternative splicing by PTBP1 promotes gemcitabine resistance in pancreatic cancer cells [PDF]

open access: yes, 2015
Pancreatic ductal adenocarcinoma (PDAC) is an aggressive and incurable disease. Poor prognosis is due to multiple reasons, including acquisition of resistance to gemcitabine, the first-line chemotherapeutic approach.
Bielli, P   +7 more
core   +2 more sources

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

open access: yesMolecular 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

Research progress on the role of PKM2 in the immune response

open access: yesFrontiers in Immunology, 2022
Pyruvate kinase (PK) is a key enzyme that catalyzes the dephosphorylation of phosphoenolpyruvate (PEP) into pyruvate, and is responsible for the production of ATP during glycolysis.
Chunyan Liu, Chenchen Liu, Rong Fu
doaj   +1 more source

The photoswitchable cannabinoid azo‐HU308 enables optical control of Ca2+ dynamics in INS‐1 β‐cells via off‐target effects on TRPC channels

open access: yesFEBS Open Bio, EarlyView.
Light activation of the photoswitchable cannabinoid ligand azo‐HU308 triggers Ca2+ influx in pancreatic β‐cells through TRPC channels, independent of CB2 cannabinoid receptors. This reveals a non‐GPCR pathway for cannabinoid modulation of β‐cell Ca2+ dynamics and establishes azo‐HU308 as an optical tool to study cannabinoid signaling through TRP ...
Alexander E. G. Viray, James A. Frank
wiley   +1 more source

Novel mutations associated with pyruvate kinase deficiency in Brazil

open access: yesHematology, Transfusion and Cell Therapy, 2018
Background: Pyruvate kinase deficiency is a hereditary disease that affects the glycolytic pathway of the red blood cell, causing nonspherocytic hemolytic anemia.
Maria Carolina Costa Melo Svidnicki   +9 more
doaj   +1 more source

A simple and reliable method for determination of optimum pH in coupled enzyme assays

open access: yesBioTechniques, 2020
Determination of the optimum pH in a coupled enzyme assay poses significant challenges because altering the pH of the reaction mixture can affect the performance of both enzymes.
Lee Bowman   +7 more
doaj   +1 more source

Pyruvate Kinase M2 Protects Heart from Pressure Overload‐Induced Heart Failure by Phosphorylating RAC1

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2022
Background Heart failure, caused by sustained pressure overload, remains a major public health problem. PKM (pyruvate kinase M) acts as a rate‐limiting enzyme of glycolysis. PKM2 (pyruvate kinase M2), an alternative splicing product of PKM, plays complex
Le Ni   +7 more
doaj   +1 more source

Tumor‐stromal crosstalk and macrophage enrichment are associated with chemotherapy response in bladder cancer

open access: yesFEBS Open Bio, EarlyView.
Chemoresistance in bladder cancer: Macrophage recruitment associated with CXCL1, CXCL5 and CXCL8 expression is characteristic of Gemcitabine/Cisplatin (Gem/Cis) Non‐Responder tumors (right side) while Responder tumors did not show substantial tumor‐stromal crosstalk (left side). All biological icons are attributed to Bioicons: carcinoma, cancerous‐cell‐
Sophie Leypold   +11 more
wiley   +1 more source

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