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The Microscopy Knowledge Portal

LEARN. SHARE. CONTRIBUTE. Science Lab, the knowledge portal of Leica Microsystems, offers scientific research and teaching material on the subjects of microscopy. The content is designed to support beginners, experienced practitioners and scientists alike in their everyday work and experiments. Explore interactive tutorials and application notes, discover the basics of microscopy as well as high-end technologies – become part of the Science Lab community and share your expertise! 

Latest Articles

  • Role of circadian gene Clock during differentiation of mouse pluripotent stem cells

    Biological rhythms controlled by the circadian clock are absent in embryonic stem cells (ESCs). However, they start to develop during the differentiation of pluripotent ESCs to downstream cells. Conversely, biological rhythms in adult somatic cells disappear when they are reprogrammed into induced pluripotent stem cells (iPSCs). These studies indicated that the development of biological rhythms in ESCs might be closely associated with the maintenance and differentiation of ESCs.
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  • KChIP2 regulates the cardiac Ca²⁺ transient and myocyte contractility by targeting ryanodine receptor activity

    Pathologic electrical remodeling and attenuated cardiac contractility are featured characteristics of heart failure. Coinciding with these remodeling events is a loss of the K+ channel interacting protein, KChIP2. While, KChIP2 enhances the expression and stability of the Kv4 family of potassium channels, leading to a more pronounced transient outward K+ current, Ito,f, the guinea pig myocardium is unique in that Kv4 expression is absent, while KChIP2 expression is preserved, suggesting alternative consequences to KChIP2 loss. Therefore, KChIP2 was acutely silenced in isolated guinea pig myocytes, which led to significant reductions in the Ca²⁺ transient amplitude and prolongation of the transient duration.
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  • Laser Microdissection Publication List

    This monthly updated reference list demonstrates the major application fields for laser microdissection in life science research.
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  • Effect of curcumin analogs onα-synuclein aggregation and cytotoxicity

    Alpha-synuclein (α-Syn) aggregation into oligomers and fibrils is associated with dopaminergic neuron loss occurring in Parkinson’s disease (PD) pathogenesis. Compounds that modulate α-Syn aggregation and interact with preformed fibrils/oligomers and convert them to less toxic species could have promising applications in the drug development efforts against PD. Curcumin is one of the Asian food ingredient which showed promising role as therapeutic agent against many neurological disorders including PD.
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  • IT Security Whitepaper

    Security is a primary concern of Leica Microsystems and Leica Microsystems’ customers that employ remote services. Leica Microsystems requires a proven remote service solution that protects against viruses and hackers and supports our intelligent instruments without major end-user modifications, while working within our current network security model and achieving official certification by a third-party security company.
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  • Expression Analysis of Platelet‐derived Growth Factor Receptor Alpha and its Ligands in the Developing Mouse Lung

    Activation of the platelet‐derived growth factor receptor‐α (PDGFR α) signaling pathway is critically important during lung alveogenesis, the process in lung development during which alveoli are formed from the terminal alveolar sacs. Several studies have aimed to characterize the expression patterns of PDGFR α and its two ligands (PDGF‐A and ‐C) in the lung, but published analyses have been limited to embryonic and/or perinatal time points, and no attempts have been made to characterize both receptor and ligand expression simultaneously. In this study, we present a detailed map of the expression patterns of PDGFR α, PDGF‐A and PDGF‐C during the entire period of lung development, that is, from early embryogenesis until adulthood.
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  • Rating the Quality of Steel

    This report describes optimal microscopy solutions for rating steel quality in terms of non-metallic inclusions and reviews the various international and regional standards concerning rigorous quality assessment methods, e.g., EN 10247, ASTM E45, DIN 50602, and ISO 4967.
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  • Basal Body Positioning and Anchoring in the Multiciliated Cell Paramecium Tetraurelia: Roles of OFD1 and VFL3

    The development of a ciliary axoneme requires the correct docking of the basal body at cytoplasmic vesicles or plasma membrane. In the multiciliated cell Paramecium, three conserved proteins, FOR20, Centrin 2, and Centrin 3 participate in this process, FOR20 and Centrin 2 being involved in the assembly of the transition zone. We investigated the function of two other evolutionary conserved proteins, OFD1 and VFL3, likely involved in this process.
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  • Acute Transcriptional Up-regulation Specific to Osteoblasts/Osteoclasts in Medaka Fish Immediately after Exposure to Microgravity

    Bone loss is a serious problem in spaceflight; however, the initial action of microgravity has not been identified. To examine this action, we performed live-imaging of animals during a space mission followed by transcriptome analysis using medaka transgenic lines expressing osteoblast and osteoclastspecific promoter-driven GFP and DsRed. In live-imaging for osteoblasts, the intensity of osterix- or osteocalcin-DsRed fluorescence in pharyngeal bones was significantly enhanced 1 day after launch; and this enhancement continued for 8 or 5 days.
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  • Free Webinar On-Demand: How to Conduct Localized Proteomics of Microscopic Regions

    In this webinar, you will learn: - How to perform isolated proteomics of microscopic regions of interest - How to use this technique with FFPE tissue - How proteomics can help you understand molecular mechanisms in disease
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  • Coupling of vinculin to F-actin requires Syndecan-4 proteoglycan

    Heparan Sulfate Proteoglycans act as a cell surface co-receptors for many proteins in which a signal is sent downstream via its cytosolic domain. The role of syndecan-4 proteoglycans in FA assembly was studied in endothelial cells, and single molecule localization super-resolution microscopy showed that Syn4 loss altered the cytoskeleton protein network assembly. Using molecular and cell biology approaches we were able to demonstrate that syndecan-4 plays a pivotal role in endothelial cell behavior. Super-resolution microscopy revealed that syndecan-4 knockdown alters the level and arrangement of essential proteins for focal adhesion, including actin network and a selective decoupling of vinculin from actin, leading to lamellipodia assembly and filopodia protrusions (Figure 1). Furthermore, using Coherent Anti-stokes Raman Scattering (CARS) microscopy, the structure of the tumors formed by such cells in mice was revealed showing its network of vascularization (Figure 2). We propose a model in which syndecan-4 acts as a central mediator: serving as a cell-signaling center in which ECM (fibronectin), cell surface (integrins) and intracellular components (actin and vinculin) come together.
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  • The Future of Fluorescence in Vascular Neurosurgery

    In vascular neurosurgery, surgical microscopes are used to provide a magnified and illuminated view of the surgical field. Although surgeons benefit greatly from the superb image quality and optical magnification offered by the microscope, current limitations of the microscope mean that surgeons have to rely on their color acuity to differentiate between different tissue types.
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  • Adipose Stem Cells Display Higher Regenerative Capacities and More Adaptable Electro-Kinetic Properties Compared to Bone Marrow-Derived Mesenchymal Stromal Cells

    Adipose stem cells (ASCs) have recently emerged as a more viable source for clinical applications, compared to bone-marrow mesenchymal stromal cells (BM-MSCs) because of their abundance and easy access. In this study we evaluated the regenerative potency of ASCs compared to BM-MSCs. Furthermore, we compared the dielectric and electro-kinetic properties of both types of cells using a novel Dielectrophoresis (DEP) microfluidic platform based on a printed circuit board (PCB) technology. Our data show that ASCs were more effective than BM-MSCs in promoting neovascularization in an animal model of hind-limb ischemia.
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  • STED image of peripheral section of HeLa cell nucleus

    Abstracts of the 7th European Super-Resolution User-Club Meeting

    The 7th Super-Resolution User Club Meeting was held in collaboration with Prof Pavel Hozák , at the Institute of Molecular Genetics of the ASCR in Prague. Keeping the event close to science is one of the founding principles of the event, allowing all participants to network, share and explore exciting new super-resolution and nanoscopy applications. Central to this are the scientific talks given during the meeting, with this cutting-edge microscopy technique as their central theme. A wide selection of topics were covered, prompting interesting discussions during the workshops.
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  • Free Webinar On-Demand: Enhance Your Imaging with Super-Resolution

    This webinar features the scientific results of two scientists Dr. Sebastian Haensch of the Center for Advanced Imaging at the Heinrich Heine-University in Düsseldorf, Germany and Dr. Imre Gaspar of the European Molecular Biology Laboratory, Developmental Biology Unit, Heidelberg, Germany. Both researchers explain how they used the Leica TCS SP8 and HyVolution 2 to dramatically enhance their imaging results.
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