Bioluminescence is the light produced by a living organism and is commonly emitted by sea life with Ca-regulated photoproteins being the most responsible for bioluminescence emission. Marine coelenterates provide important functions involved in essential purposes such as defense, feeding, and breeding. In this review, the main characteristics of marine photoproteins including aequorin, clytin, obelin, berovin, pholasin and symplectin from different marine organisms will be discussed. We will focused on the recent use of recombinant photoproteins in different biomedical research fields including the measurement of Ca in different intracellular compartments of animal cells, as labels in the design and development of binding assays. This review will also outline how bioluminescent photoproteins have been used in a plethora of analytical methods including ultra-sensitive assays and in vivo imaging of cellular processes. Due to their unique properties including elective intracellular distribution, wide dynamic range, high signal-to-noise ratio and low Ca-buffering effect, recombinant photoproteins represent a promising future analytical tool in several in vitro and in vivo experiments.
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http://dx.doi.org/10.1016/j.biopha.2018.02.065 | DOI Listing |
Invest Ophthalmol Vis Sci
January 2025
Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Purpose: This study aimed to identify a novel recombinant adeno-associated virus (rAAV) capsid variant that can widely transfect the deep retina through intravitreal injection and to assess their effectiveness and safety in gene delivery.
Methods: By adopting the sequences of various cell-penetrating peptides and inserting them into the capsid modification region of AAV2, we generated several novel variants. The green fluorescent protein (GFP)-carrying variants were screened following intravitreal injection.
Methods Mol Biol
January 2025
Aix Marseille Univ, INSERM, MMG (Marseille Medical Genetics), Marseille, France.
Anterior Hox genes are required for genetic identity and anterior posterior patterning of the second heart field (SHF), which contributes to the formation of the embryonic heart in vertebrates. Defective contribution of SHF cells to the arterial or venous pole of the heart is often associated with severe congenital heart defects. The mouse Cre-lox system allows the activation of expression of any gene of interest in restricted tissues.
View Article and Find Full Text PDFPLoS One
December 2024
Institute of Genetics, Technische Universität Braunschweig, Braunschweig, Germany.
Diplodia sapinea (Fr.) Fuckel is a widespread fungal pathogen affecting conifers worldwide. Infections can lead to severe symptoms, such as shoot blight, canker, tree death, or blue stain in harvested wood, especially in Pinus species.
View Article and Find Full Text PDFSheng Wu Gong Cheng Xue Bao
December 2024
College of Animal & Veterinary Sciences, Southwest Minzu University, Chengdu 610041, Sichuan, China.
The purpose of this study is to construct a muscle-specific synthetic promoter library, screen out muscle-specific promoters with high activity, analyze the relationship between element composition and activity of highly active promoters, and provide a theoretical basis for artificial synthesis of promoters. In this study, 19 promoter fragments derived from muscle-specific elements, conserved elements, and viral regulatory sequences were selected and randomLy connected to construct a muscle-specific synthetic promoter library. The luciferase plasmids pCMV-Luc and pSPs-Luc were constructed and transfected into the myoblast cell line C2C12.
View Article and Find Full Text PDFMicrob Cell Fact
December 2024
Department of Biotechnology, Jožef Stefan Institute, Jamova cesta 39, Ljubljana, Slovenia.
Electrospun nanofibers offer a highly promising platform for the delivery of vaginal lactobacilli, providing an innovative approach to preventing and treating vaginal infections. To advance the application of nanofibers for the delivery of lactobacilli, tools for studying their safety and efficacy in vitro need to be established. In this study, fluorescent (mCherry and GFP) and luminescent (NanoLuc luciferase) proteins were expressed in three vaginal lactobacilli (Lactobacillus crispatus, Lactobacillus gasseri and Lactobacillus jensenii) and a control Lactiplantibacillus plantarum with the aim to use this technology for close tracking of lactobacilli release from nanofibers and their adhesion on epithelial cells.
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