Recently, Chen and colleagues reported the development of phosphatase-targeting chimeric molecules (PhosTACs), heterobifunctional small molecules that promote targeted, proximity-induced protein dephosphorylation. This strategy represents an innovative approach to selectively manipulate phosphoprotein function and provides proof-of-concept for a new class of bifunctional small molecules in the chemical biologist's toolbox.
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http://dx.doi.org/10.1016/j.tips.2022.01.005 | DOI Listing |
Cancer Sci
January 2025
Abdominal Radiotherapy Department, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, Heilongjiang Province, China.
Invasion and metastasis are major causes of mortality in breast cancer (BRCA) patients. LHPP, known for its tumor-suppressive effects, has an undefined role in BRCA. We found reduced LHPP protein in BRCA tissues, with lower levels correlating with poor patient outcomes.
View Article and Find Full Text PDFAdv Biol Regul
January 2025
Department of Food Science and the Rutgers Center for Lipid Research, Rutgers University, New Brunswick, NJ, 08901, USA.
Phosphatidic acid phosphatase, a conserved eukaryotic enzyme that catalyzes the Mg-dependent dephosphorylation of phosphatidic acid to produce diacylglycerol, has emerged as a vital regulator of lipid homeostasis. By controlling the balance of phosphatidic acid and diacylglycerol, the enzyme governs the use of the lipids for synthesis of the storage lipid triacylglycerol and the membrane phospholipids needed for cell growth. The mutational, biochemical, and cellular analyses of yeast phosphatidic acid phosphatase have provided insights into the structural determinants of enzyme function with the understanding of its regulation by phosphorylation and dephosphorylation.
View Article and Find Full Text PDFBackground: Aging significantly elevates the risk for Alzheimer's disease (AD), contributing to the accumulation of AD pathologies, such as amyloid-β (Aβ), inflammation, and oxidative stress. The human prefrontal cortex (PFC) is highly vulnerable to the impacts of both aging and AD. Unveiling and understanding the molecular alterations in PFC associated with normal aging (NA) and AD is essential for elucidating the mechanisms of AD progression and developing novel therapeutics for this devastating disease.
View Article and Find Full Text PDFNat Commun
January 2025
Tulane Center for Biomedical Informatics and Genomics, Deming Department of Medicine, School of Medicine, Tulane University, New Orleans, LA, 70112, USA.
Aging increases the risk for Alzheimer's disease (AD), driving pathological changes like amyloid-β (Aβ) buildup, inflammation, and oxidative stress, especially in the prefrontal cortex (PFC). We present the first subcellular-resolution spatial transcriptome atlas of the human prefrontal cortex (PFC), generated with Stereo-seq from six male AD cases at varying neuropathological stages and six age-matched male controls. Our analyses revealed distinct transcriptional alterations across PFC layers, highlighted disruptions in laminar structure, and exposed AD-related shifts in layer-to-layer and cell-cell interactions.
View Article and Find Full Text PDFAlzheimers Dement
January 2025
Department of Neuroscience, Yale Medical School, New Haven, Connecticut, USA.
Aging rhesus macaques provide a unique model for learning how age and inflammation drive early-stage pathology in sporadic Alzheimer's disease, and for testing potential therapeutics. Unlike mice, aging macaques have extensive association cortices and inflammatory signaling similar to humans, are apolipoprotein E ε4 homozygotes, and naturally develop tau and amyloid pathology with marked cognitive deficits. Importantly, monkeys provide the unique opportunity to study early-stage, soluble hyperphosphorylated tau (p-tau), including p-tau217.
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