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DNA Dendron Tagging as a Universal Way to Deliver Proteins to Cells.
J Am Chem Soc
January 2025
Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States.
The use of proteins as intracellular probes and therapeutic tools is often limited by poor intracellular delivery. One approach to enabling intracellular protein delivery is to transform proteins into spherical nucleic acid (proSNA) nanoconstructs, with surfaces chemically modified with a dense shell of radially oriented DNA that can engage with cell-surface receptors that facilitate endocytosis. However, proteins often have a limited number of available reactive surface residues for DNA conjugation such that the extent of DNA loading and cellular uptake is restricted.
View Article and Find Full Text PDFA review on evolution, structural characteristics, interactions, and regulation of the membrane transport protein: The family of Rab proteins.
Int J Biol Macromol
January 2025
Department of Chemistry, Indian Institute of Technology (IIT) Delhi, Hauz Khas Campus, New Delhi 110016, India; Department of Bio-Science and Technology, MM Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana 133203, India. Electronic address:
Rab proteins are a key family of small GTPases that play crucial roles in vesicular trafficking, membrane dynamics, and maintaining cellular homeostasis. Studying this family of proteins is interesting as having many structural isoforms with variable evolutionary trends and wide distribution in cells. The proteins are renowned for their unique structural characteristics, which support their functional adaptability and specificity.
View Article and Find Full Text PDFBackground: Hyperkalemia, generally defined as serum potassium levels greater than 5.0 mEq/L, poses significant clinical risks, including cardiac toxicity and muscle weakness. Its prevalence and severity increase in patients with chronic kidney disease (CKD), diabetes mellitus, and heart failure (HF), particularly when compounded by medications like Angiotensin converting inhibitors, Angiotensin receptor blockers, and potassium sparing diuretics.
View Article and Find Full Text PDFA mitochondrion-targeted poly(N-isopropylacrylamide-coacrylic acid) nanohydrogel with a fluorescent bioprobe for ferrous ion imaging in vitro and in vivo.
Spectrochim Acta A Mol Biomol Spectrosc
January 2025
School of Pharmacy, Hangzhou Medical College, Hangzhou, Zhejiang 310007, China; Department of Medicine, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou, Zhejiang 310007, China. Electronic address:
An imbalance in iron homeostasis contributes to mitochondrial dysfunction, which is closely linked to the pathogenesis of various diseases. Herein, we developed a nanosensor for detecting mitochondrial ferrous ions in vitro and in vivo. A poly(N-isopropylacrylamine)-coacrylic acid nanohydrogel was synthesized, and ferrous ions were detected using the fluorescent probe FeRhonox-1 embedded within it.
View Article and Find Full Text PDFReconstruction of Local Three-dimensional Temperature Field of Tumor Cells with Low-toxic Nanoscale Quantum-dot Thermometer and Cepstrum Spatial Localization Algorithm.
Biomed Phys Eng Express
January 2025
Xi'an Jiaotong University, No.28 Xianning West Road, Xi'an, Shaanxi 710049, P.R. China, Xi'an, 710049, CHINA.
The optimal method for three-dimensional thermal imaging within cells involves collecting intracellular temperature responses while simultaneously obtaining corresponding 3D positional information. Current temperature measurement techniques based on the photothermal properties of quantum dots face several limitations, including high cytotoxicity and low fluorescence quantum yields. These issues affect the normal metabolic processes of tumor cells.
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