98%
921
2 minutes
20
Heart failure with preserved ejection fraction (HFpEF) roughly represents half of the cardiac failure events in developed countries. The proposed 'systemic microvascular paradigm' has been used to explain HFpHF presentation heterogeneity. The lack of effective treatments with few evidence-based therapeutic recommendations makes HFpEF one of the greatest unmet clinical necessities worldwide. The endogenous levels of the purine nucleoside, adenosine, increase significantly following cardiovascular events. Adenosine exerts cardioprotective, neuromodulatory, and immunosuppressive effects by activating plasma membrane-bound P1 receptors that are widely expressed in the cardiovascular system. Its proven benefits have been demonstrated in preclinical animal tests. Here, we provide a comprehensive and up-to-date critical review about the main therapeutic advantages of tuning adenosine signalling pathways in HFpEF, without discounting their side effects and how these can be seized.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8417789 | PMC |
http://dx.doi.org/10.3389/fphar.2021.724320 | DOI Listing |
J Neurochem
September 2025
Carl-Ludwig-Institute of Physiology, Faculty of Medicine, Leipzig University, Leipzig, Germany.
Recent evidence indicates that the concentration of ATP remains stable during neuronal activity due to activity-dependent ATP production. However, the mechanisms of activity-dependent ATP production remain controversial. To stabilize the ATP concentration, feedforward mechanisms, which may rely on calcium or the sodium-potassium pump, do not require changes in the ATP and ADP concentrations.
View Article and Find Full Text PDFCurr Med Chem
August 2025
Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Department of Bioorganic Chemistry, Sienkiewicza 112, 90-363, Lodz, Poland.
Transfer RNAs (tRNAs) are ubiquitous in cells and are essential for the translation of genetic information from messenger RNA (mRNA) into proteins in all three domains of life. They act as adaptors that decode mRNA codons via their anticodons and deliver the corresponding amino acids to the growing polypeptide chain. Currently, over 100 modified nucleosides have been found in tRNA that are crucial for the integrity and functionality of this molecule.
View Article and Find Full Text PDFChemistry
August 2025
Department of Chemistry, Loughborough University, Epinal Way, Loughborough, UK.
The selective recognition of adenosine diphosphate (ADP) in water presents a significant challenge for synthetic supramolecular chemistry, driven by its biological importance in cellular energy transfer and enzymatic signaling pathways. Discriminating ADP from structurally similar anions such as ATP requires a high degree of host-guest complementarity. We recently developed [Eu.
View Article and Find Full Text PDFAdv Sci (Weinh)
August 2025
Fujian Provincial Key Laboratory of Reproductive Health Research, Cancer Research Center, Department of Obstetrics and Gynecology, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China.
The mechanisms that balance a robust intrinsic antiviral defense at the maternal-fetal interface with fetal development remain elusive. Here, it is delineated that ADAR1, an adenosine-to-inosine (A-to-I) editor, fine-tunes intrinsic interferon (IFN)-mediated integrates stress response (ISR) in the mouse placenta, thereby orchestrating embryonic development and antiviral defense. Placental Adar1 deletion (Adar1) trigger spatially resolved overwhelming IFN responses, which impair the differentiation of IFN hyper-responsive junctional zone (JZ) progenitors and functions of the placental JZ, ultimately causing embryonic death.
View Article and Find Full Text PDFACS Pharmacol Transl Sci
August 2025
Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nam. 2, CZ-16610 Prague 6, Czech Republic.
CD73 is a crucial regulator of adenosine production in the tumor microenvironment and, therefore, represents a valuable target for cancer immunotherapy. While different inhibitors of CD73 have been studied, the progress remains hindered by a lack of high-throughput assays that would allow the screening of large chemical libraries. Establishing a sensitive assay for the detection of CD73 activity could enable additions to the CD73 inhibitor chemical space as well as help facilitate a better understanding of the CD73 reaction mechanism.
View Article and Find Full Text PDF