Archives
-
MEK1/2–c-Myc Control of TERT in hESC
2026-09-30
The reference preprint identifies a signaling-to-chromatin mechanism in which MEK1/2 and ERK activity cooperate with c-Myc:MAX to protect TERT from polycomb-mediated repression in human embryonic stem cells. Its findings connect MEK–ERK signaling to H3K27 methylation, H3K27 acetylation, and TERT transcription, providing a framework for interpreting pathway inhibition in stem-cell and oncology research.
-
Native-Membrane Proteoforms and PDE5 Off-Target Binding
2026-09-30
Lutomski and colleagues developed a native top-down mass spectrometry workflow that releases membrane proteins and signaling complexes directly from retinal disc membranes while retaining proteoform-dependent interaction information. The study resolved lipid modifications in rhodopsin and G proteins and showed that sildenafil and vardenafil have distinct off-target reactivities with retinal PDE6, providing a more direct framework for evaluating ligand selectivity in native membranes.
-
Bacitracin B1670: Practical Research Workflow
2026-09-29
Bacitracin (B1670) is a peptide antibiotic for controlled antibacterial research involving bacterial cell wall and peptidoglycan synthesis disruption. This guide covers preparation, assay controls, storage, and troubleshooting, while emphasizing that the material is for scientific research only and not for diagnostic, clinical, or medical use.
-
Osteoblast ECM1 and Anti-Androgen Resistance in PCa
2026-09-29
This study identifies osteoblast-derived ECM1 as a microenvironmental driver of enzalutamide resistance in bone metastatic prostate cancer. Its mechanistic model connects ECM1 to ENO1 phosphorylation, GRB2/SOS1 recruitment, and MAPK activation, while ECM1 inhibition or ENO1 targeting restores enzalutamide sensitivity.
-
TCEP Hydrochloride in Redox-Sensitive Assays
2026-09-28
Tris(2-carboxyethyl) phosphine hydrochloride is more than a disulfide-reduction reagent: it can shape sample preparation, protein digestion, structural mass spectrometry, and redox assay interpretation. This guide connects TCEP hydrochloride chemistry with ubiquitin-dependent DNA-protein crosslink proteolysis while defining practical limits and controls.
-
Cell–Cell Spread and HIV Nuclear Entry in Resting T Cells
2026-09-28
The paper investigates how cell–cell spread can overcome a nuclear-entry barrier to HIV infection in resting T cells. Its proposed mechanism links CD4–LCK signalling and CDK1 activation with changes at the nuclear pore complex that favor capsid nuclear import.
-
Magnetic Exosome Hydrogel for Diabetic Bladder Dysfunction
2026-09-27
This study combines shock-wave-preconditioned adipose-derived stromal cell exosomes with a magnetic, thermosensitive chitosan hydrogel to improve bladder repair in diabetic rats. Its mechanistic findings connect FAK–p38 MAPK–GATA4 signaling with growth-factor production, while the delivery system addresses the short residence time of locally administered exosomes.
-
EZ Cap™ Cas9 mRNA (m1Ψ) for Controlled Editing
2026-09-26
A practical guide to using capped Cas9 mRNA for transient CRISPR editing, from stock handling and pilot dose-finding to readouts and troubleshooting. It also explains why the KPT330 nuclear-export findings suggest a distinct strategy—not an assumed add-on—for experiments using directly delivered mRNA.
-
TH287 MTH1 Inhibitor for Radiosensitization
2026-09-25
TH287 offers a practical way to test whether blocking oxidized-nucleotide cleanup can make castration-resistant prostate cancer cells more vulnerable to radiation. In PC-3 and DU-145 models, the most effective tested sequence placed irradiation 12 hours after TH287 exposure, making treatment timing a central experimental variable—not a detail to leave uncontrolled.
-
Leupeptin Hemisulfate: Evidence & Use
2026-09-25
Leupeptin hemisulfate salt is a reversible, competitive inhibitor used to investigate serine and cysteine protease activity. The product information reports target-specific Ki values and describes applications in protein degradation studies, human coronavirus 229E inhibition, and macroautophagy research; assay conditions are not fully specified.
-
FITC-Concanavalin A (ConA) Conjugate Guide
2026-09-24
FITC-Concanavalin A is a fluorescent lectin probe for visualizing accessible α-D-glucose- and α-D-mannose-containing structures on cells or tissue. Use it for carbohydrate-focused immunofluorescence or flow cytometry—not as a marker for a specific protein or other non-carbohydrate target.
-
Firefly Luciferase mRNA for LNP Delivery Decisions
2026-09-24
Firefly Luciferase mRNA can do more than confirm protein expression: used thoughtfully, it helps distinguish delivery performance from translation output. This article connects 5-moUTP modified mRNA assay design with emerging strategies for targeted lipid nanoparticle delivery.
-
Standardized Whole-Blood Stimulation for Immunometabolism
2026-09-23
Zhao and colleagues present a standardized whole-blood stimulation protocol for testing how metabolic interventions alter human immune-cell cytokine responses. Its central contribution is a functional assay framework combining immune stimuli with metabolic modulation, supporting cohort comparisons while underscoring the need to control for donor and assay variability.
-
QPRT, P2Y11, and Breast Cancer Invasion
2026-09-23
Liu et al. connect altered NAD+ metabolism to breast cancer invasiveness by showing that QPRT promotes myosin light chain phosphorylation through a purinergic signaling axis involving P2Y11. Genetic perturbation and inhibitor studies identify a QPRT–P2Y11–Rho/ROCK–MLCK pathway as a useful framework for investigating tumor-cell motility, while also highlighting important limits on pharmacologic interpretation.
-
Annexin V-PE Apoptosis Detection Kit Workflow
2026-09-22
Turn treatment-response questions into a rapid, live-cell readout of phosphatidylserine externalization. This workflow applies the Annexin V-PE Apoptosis Detection Kit to GANT61-treated ALK-positive lymphoma models while connecting flow cytometry, microscopy, and pathway validation.