4.8 Review

Small-molecule probes from bench to bedside: advancing molecular analysis of drug-target interactions toward precision medicine

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De-en Sun et al.

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Extracellular vesicle drug occupancy enables real-time monitoring of targeted cancer therapy

Sijun Pan et al.

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Strategic Design of Catalytic Lysine-Targeting Reversible Covalent BCR-ABL Inhibitors

David Quach et al.

Summary: In this study, a carbonyl boronic acid warhead was utilized to design BCR-ABL inhibitors, targeting the catalytic lysine with improved potency against ABL kinases. Selectivity of these inhibitors largely depends on molecular recognition of the non-covalent pharmacophore, and insights into the interaction of the warhead with the catalytic lysine were provided through cocrystal structures. The off-target evaluation of compounds was performed using label-free mass spectrometry in different mammalian cells.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Article Biochemistry & Molecular Biology

Sulfopin is a covalent inhibitor of Pin1 that blocks Myc-driven tumors in vivo

Christian Dubiella et al.

Summary: Through screening an electrophilic fragment library, a highly selective and effective Pin1 inhibitor named Sulfopin was developed, showing promising anti-tumor activity by downregulating c-Myc target genes, slowing tumor progression, and improving survival rates in murine models of neuroblastoma and pancreatic cancer.

NATURE CHEMICAL BIOLOGY (2021)

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Catalytic amplification by transition-state molecular switches for direct and sensitive detection of SARS-CoV-2

Noah R. Sundah et al.

Summary: CATCH is a molecular nanotechnology that enables direct and sensitive detection of viral RNA targets in clinical samples, achieving superior performance and versatile implementation.

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Article Biochemistry & Molecular Biology

A Comparison of Two Stability Proteomics Methods for Drug Target Identification in OnePot 2D Format

Yingrong Xu et al.

Summary: Stability proteomics techniques have emerged as an attractive alternative in drug target engagement studies, with SPROX and TPP being representative methods. The adoption of the OnePot strategy has increased throughput and efficiency, with the OnePot 2D format offering improved analysis specificity. However, there is still a lack of systematic evaluation of the OnePot 2D format and a comparison between SPROX and TPP.

ACS CHEMICAL BIOLOGY (2021)

Article Chemistry, Multidisciplinary

Discovery and Characterisation of Highly Cooperative FAK-Degrading PROTACs

Robert P. Law et al.

Summary: This study introduced a novel FAK-degrading PROTAC, GSK215, designed based on VHL E3 ligase and the FAK inhibitor VS-4718, showing promising potential for a differentiated clinical strategy in cancer treatment compared to conventional FAK inhibition. The highly cooperative FAK-GSK215-VHL ternary complex revealed by X-ray crystallography provided insights into the molecular basis of the compound's efficacy. In mouse models, GSK215 demonstrated rapid and prolonged FAK degradation, highlighting its potential as a valuable tool for studying FAK-degradation biology in vivo.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Article Cell Biology

Quantitative proteomics identifies the core proteome of exosomes with syntenin-1 as the highest abundant protein and a putative universal biomarker

Fernanda G. Kugeratski et al.

Summary: The study used an unbiased and quantitative proteomic approach to identify core constituents of exosomes, with syntenin-1 identified as a potential universal biomarker. A comprehensive quantitative atlas of core proteins ubiquitous to exosomes was provided, highlighting the potential use of syntenin-1 as a putative universal biomarker for exosomes.

NATURE CELL BIOLOGY (2021)

Review Neurosciences

Expansion microscopy: A powerful nanoscale imaging tool for neuroscientists

Brendan R. Gallagher et al.

Summary: One of the biggest challenges in neuroscience is understanding how molecules and neuronal circuitry give rise to behaviors, and how their dysfunction leads to neurological diseases. While light microscopy is a crucial tool for studying neural molecules and circuits, the diffraction limit hinders detailed characterization of subcellular structures and nanoscopic organizations. Super-resolution microscopy methods have been developed to bypass this limitation, allowing highly resolved imaging in the nanometer range. Expansion Microscopy (ExM) has emerged as a promising solution to surpass the diffraction limit by physically enlarging biological specimens, providing a powerful tool for studying neural systems at the nanoscale.

NEUROBIOLOGY OF DISEASE (2021)

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Opportunities and Challenges of Small Molecule Induced Targeted Protein Degradation

Ming He et al.

Summary: PROTAC is a new technology for inducing protein degradation using small molecules, which shows advantages in overcoming tumor resistance, affecting non-enzymatic functions of target proteins, degrading undruggable targets, and providing rapid and reversible chemical knockout tools. However, it also faces challenges and issues as a rapidly developing new chemical biology technology.

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Intramolecular charge transfer enhancing strategy based MAO-A specific two-photon fluorescent probes for glioma cell/tissue imaging

Haixiao Fang et al.

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Summary: This tutorial review discusses the importance of chemical tools in real-time monitoring of organ function and visualization of organ-related processes at the cellular level in biological research. It highlights the potential of small-molecule fluorescent probes in advancing the understanding of organ-related diseases and emphasizes the need for probes with high sensitivity, low limit of detection, fast response times, and appropriate biocompatibility.

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Advancing targeted protein degradation for cancer therapy

Brandon Dale et al.

Summary: The development of small-molecule degraders such as proteolysis-targeting chimeras (PROTACs) has enabled the targeting of previously considered undruggable oncoproteins. This review discusses recent advances in the field, with a focus on opportunities and challenges for future development.

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Emerging applications of stimulated Raman scattering microscopy in materials science

Qian Cheng et al.

Summary: Stimulated Raman scattering (SRS) is a powerful chemical imaging technique with high chemical, spatial, and temporal resolution, suitable for applications in materials science and biomedicine. The high-speed and high-chemical sensitivity of SRS have attracted attention from the materials science community and have been successfully applied in various areas, such as 2D materials, energy storage, and polymer chemistry.

MATTER (2021)

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Recent advances in activity-based probes (ABPs) and affinity-based probes (AfBPs) for profiling of enzymes

Haixiao Fang et al.

Summary: Activity-based protein profiling (ABPP) is a technique that utilizes selective chemical probes to monitor protein activity, revealing enzyme-substrate interactions and providing information on catalytic activity changes. ABPP can annotate new functions and substrates of enzymes, allowing real-time monitoring of enzyme cellular location.

CHEMICAL SCIENCE (2021)

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Stimulus-cleavable chemistry in the field of controlled drug delivery

Yufei Xue et al.

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