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Scientific and Technological Prospecting on Polymeric Particles Containing Extracellular Matrix Peptides for the Treatment of Duchenne Muscular Dystrophy.
Recent Adv Drug Deliv Formul
January 2025
Laboratory of Innovation in Science and Technology - LACITEC, Department of Biophysics and Physiology, Federal University of Piauí, Teresina, Piauí, PI, Brazil.
Duchenne muscular dystrophy is a neuromuscular disease with an overall incidence of between 1 in 5,000 newborn males. Carriers may manifest progressive muscle weakness, resulting from the progressive degeneration of skeletal muscles, generating cardiac and respiratory disorders. Considering the lack of effective treatments, different therapeutic approaches have been developed, such as protein synthesis and extracellular matrix derivatives that can be used to improve muscle regeneration, maintenance, or repair.
View Article and Find Full Text PDFSmart Applications of Lanthanide Chelates-based Luminescent Probes in Bio-Imaging.
Mini Rev Med Chem
January 2025
Dipartimento di Farmacia, Università di Pisa, Via Bonanno 33, 56126, Pisa, Italia.
Luminescent Lanthanide (III) (Ln(III)) bioprobes (LLBs) have been extensively used in the last two decades as intracellular molecular probes in bio-imaging for the efficient revelation of analytes, to signal intracellular events (enzymes/protein activity, antigen-antibody interaction), target specific organelles, and determine parameters of particular biophysical interest, to gain important insights on pathologies or diseases. The choice of using a luminescent Ln(III) coordination compound with respect to a common organic fluorophore is intimately connected to how their photophysical sensitization (antenna effect) can be finely tuned and especially triggered to respond (even quantitatively) to a certain biophysical event, condition or analyte. While there are other reviews focused on how to design chromophoric ligands for an efficient sensitization of Ln(III) ions, both in the visible and NIR region, this review is application-driven: it is a small collection of particularly interesting examples where the LLB's emissive information is acquired by imaging the emission intensity and/or the fluorescence lifetime (fluorescence lifetime imaging microscopy, FLIM).
View Article and Find Full Text PDFDecoding the Molecular Basis of the Specificity of an Anti-sTn Antibody.
JACS Au
January 2025
UCIBIO-Applied Molecular Biosciences Unit, Department of Chemistry, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal.
The mucin -glycan sialyl Tn antigen (sTn, Neu5Acα2-6GalNAcα1--Ser/Thr) is an antigen associated with different types of cancers, often linked with a higher risk of metastasis and poor prognosis. Despite efforts to develop anti-sTn antibodies with high specificity for diagnostics and immunotherapy, challenges in eliciting high-affinity antibodies for glycan structures have limited their effectiveness, leading to low titers and short protection durations. Experimental structural insights into anti-sTn antibody specificity are lacking, hindering their optimization for cancer cell recognition.
View Article and Find Full Text PDFDevelopment of small-molecule fluorescent probes targeting neutrophils -formyl peptide receptors.
RSC Med Chem
January 2025
Institute of Pharmaceutical Science, King's College London Stamford Street London SE1 9NH UK +44 (0) 20 7848 9532.
-Formyl peptide receptors (FPRs) are membrane receptors that are abundantly expressed in innate immune cells, including neutrophils and platelets, demonstrating potential new targets for immune system regulation and the treatment of inflammatory conditions. We report here the development and bio-physical validation of new FPR imaging agents as effective tools to track FPR distribution, localisation and functions, ultimately helping to establish FPR exact roles and functions in pathological and physiological conditions. The new series of probes feature a small molecule-based FPR address system conjugated to suitable fluorophores, resulting in highly specific FPR agents, including a partial agonist endowed with high affinity ( low/sub-nanomolar potency) on FPR-transfected cells and human neutrophils.
View Article and Find Full Text PDFα-ketoglutarate ameliorates colitis through modulation of inflammation, ER stress, and apoptosis.
Toxicol Rep
June 2025
Division of Molecular Medicine, Bose Institute, P-1/12, CIT Scheme VII M, Kolkata, West Bengal 700054, India.
Colitis is an inflammatory disorder of the gastrointestinal tract. A widely consumed dietary nutrient, α-ketoglutarate (α-KG) is known to play a crucial role in cellular metabolism and provide protection to intestinal epithelium under various pathophysiological conditions. In this study, 2,4,6-trinitrobenzenesulfonic acid (TNBS) was used to induce colitis in Wistar rats.
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