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Multifunctional DNA-Collagen Biomaterials: Developmental Advances and Biomedical Applications.
ACS Biomater Sci Eng
January 2025
J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, United States.
The complexation of nucleic acids and collagen forms a platform biomaterial greater than the sum of its parts. This union of biomacromolecules merges the extracellular matrix functionality of collagen with the designable bioactivity of nucleic acids, enabling advances in regenerative medicine, tissue engineering, gene delivery, and targeted therapy. This review traces the historical foundations and critical applications of DNA-collagen complexes and highlights their capabilities, demonstrating them as biocompatible, bioactive, and tunable platform materials.
View Article and Find Full Text PDFMolecular Modeling on Duplexes with Threose-Based TNA and TPhoNA Reveals Structural Basis for Different Hybridization Affinity toward Complementary Natural Nucleic Acids.
J Chem Theory Comput
January 2025
Laboratory of Medicinal Chemistry, Rega Institute for Medicinal Research, Herestraat 49, Box 1030, Leuven B-3000, Belgium.
Synthetic nucleic acids, also defined as xenobiotic nucleic acids (XNAs), opened an avenue to address the limitations of nucleic acid therapeutics and the development of alternative carriers for genetic information in biotechnological applications. Two related XNA systems of high interest are the α-l-threose nucleic acid (TNA) and (3'-2') phosphonomethyl threosyl nucleic acid (tPhoNA), where TNAs show potential in antisense applications, whereas tPhoNAs are investigated for their predisposition toward orthogonal genetic systems. We present predictions on helical models of TNA and tPhoNA chemistry in homoduplexes and in complex with native ribose chemistries.
View Article and Find Full Text PDFCore-Satellite Gold Nanoparticle@Silver Nanocluster Nanohybrids for Milk Allergen β-Lactoglobulin Detection Using the Electrochemical Aptasensor.
J Agric Food Chem
January 2025
College of Chemistry and Chemical Engineering, Jishou University, Jishou, Hunan 416000, P. R. China.
Detecting β-lactoglobulin (β-Lg) with high sensitivity and selectivity is an urgent requirement due to nearly 80% of milk anaphylaxis, such as respiratory tract, skin urticaria, and gastrointestinal disorders, being caused by β-Lg. An ultrasensitive β-Lg electrochemical aptasensor utilizing core-satellite gold nanoparticle@silver nanocluster (AuNPs@AgNCs) nanohybrids as electrocatalysts was developed. First, β-Lg aptamer was anchored on gold electrodes and AuNPs to obtain high selectivity.
View Article and Find Full Text PDFTranscriptional regulation of development by SMAX1-LIKE proteins, targets of strigolactone and karrikin/KAI2 ligand signaling.
J Exp Bot
January 2025
Department of Botany and Plant Sciences, University of California, Riverside, CA 92521, USA.
SUPPRESSOR OF MAX2 1 (SMAX1) and SMAX1-LIKE (SMXL) proteins comprise a family of plant growth regulators that includes downstream targets of the karrikin (KAR)/KAI2 ligand (KL) and strigolactone (SL) signaling pathways. Following the perception of KAR/KL or SL signals by α/β hydrolases, some types of SMXL proteins are polyubiquitinated by an E3 ubiquitin ligase complex containing the F-box protein MORE AXILLARY GROWTH2 (MAX2)/DWARF3 (D3), and proteolyzed. Because SMXL proteins interact with TOPLESS (TPL) and TPL-related (TPR) transcriptional corepressors, SMXL degradation initiates changes in gene expression.
View Article and Find Full Text PDFAPOBEC-1 cofactors regulate APOBEC3-induced mutations in hepatitis B virus.
J Virol
January 2025
Department of Laboratory Medicine, Clinical Center, National Institutes of Health, Bethesda, Maryland, USA.
Unlabelled: APOBEC3 proteins (A3s) play an important role in host innate immunity against viruses and DNA mutations in cancer. A3s-induced mutations in both viral and human DNA genomes vary significantly from non-lethal mutations in viruses to localized hypermutations, such as kataegis in cancer. How A3s are regulated remains largely unknown.
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