Pyrazolopyrimidine derivatives have emerged as potent inhibitors targeting a broad spectrum of kinases, particularly serine/threonine kinases. This review provides a comprehensive overview of the synthesis, structural modifications, and pharmacological relevance of pyrazolopyrimidine compounds in the realm of kinase inhibition. Specifically, the focus is placed on their inhibitory action against serine/threonine kinases, key players in cell signaling and potential therapeutic targets in various diseases, especially cancer. The structure-activity relationship (SAR) of these derivatives, highlights the importance of specific substituents in enhancing inhibitory activity, Pyrazolopyrimidine derivatives have shown promising inhibitory activity against certain serine/threonine kinases. The exact mechanism by which these compounds inhibit kinase activity usually involves binding to the ATP-binding site of the kinase, thereby preventing ATP from binding and the kinase from undergoing its usual phosphorylation activity, while pyrazolopyrimidine derivatives show promise as serine/threonine kinase inhibitors, challenges remain, including issues related to drug resistance, off-target effects, and potential toxicity. Future research is geared towards designing more selective derivatives with improved pharmacokinetic properties and reduced side effects.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1002/cbdv.202403071 | DOI Listing |
It is known that inhibition of the endoplasmic reticulum transmembrane signaling protein (ERN1) suppresses the glioblastoma cells proliferation. The present study aims to investigate the impact of inhibition of ERN1 endoribonuclease and protein kinase activities on the , , and gene expression in U87MG glioblastoma cells with an intent to reveal the role of ERN1 signaling in the regulation of expression of these genes. The U87MG glioblastoma cells with inhibited ERN1 endoribonuclease (dnrERN1) or both enzymatic activities of ERN1 (endoribonuclease and protein kinase; dnERN1) were used.
View Article and Find Full Text PDFEndocr Regul
January 2025
1Department of Molecular Biology, Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine.
For the effective growth of malignant tumors, including glioblastoma, the necessary factors involve endoplasmic reticulum (ER) stress, hypoxia, and the availability of nutrients, particularly glucose. The ER degradation enhancing alpha-mannosidase like protein 1 (EDEM1) is involved in ER-associated degradation (ERAD) targeting misfolded glycoproteins for degradation in an N-glycan-independent manner. EDEM1 was also identified as a new modulator of insulin synthesis and secretion.
View Article and Find Full Text PDFSci Adv
March 2025
Department of Radiation Oncology, Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
Lung cancer exhibits altered metabolism, influencing its response to radiation. To investigate the metabolic regulation of radiation response, we conducted a comprehensive, metabolic-wide CRISPR-Cas9 loss-of-function screen using radiation as selection pressure in human non-small cell lung cancer. Lipoylation emerged as a key metabolic target for radiosensitization, with lipoyltransferase 1 (LIPT1) identified as a top hit.
View Article and Find Full Text PDFSci Adv
March 2025
Functional Neuroimaging Laboratory, Istituto Italiano di Tecnologia, Center for Neuroscience and Cognitive Systems @UniTn, Rovereto, Italy.
Chromosome 22q11.2 deletion increases the risk of neuropsychiatric disorders like autism and schizophrenia. Disruption of large-scale functional connectivity in 22q11 deletion syndrome (22q11DS) has been widely reported, but the biological factors driving these changes remain unclear.
View Article and Find Full Text PDFSci Adv
March 2025
Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium.
Carbohydrate-responsive element binding protein (ChREBP) and Max-like protein X (MLX) form a heterodimeric transcription factor complex that couples intracellular sugar levels to carbohydrate and lipid metabolism. To promote the expression of target genes, two ChREBP-MLX heterodimers form a heterotetramer to bind a tandem element with two adjacent E-boxes, called carbohydrate-responsive element (ChoRE). How the ChREBP-MLX hetero-tetramerization is achieved and regulated remains poorly understood.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!