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We narrowed to 813 results for: cell

Showing: 221 - 240 of 813 results
  1. Exploring Applications of the Bioluminescent HiBiT Tag

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    ...kinase essential for cell proliferation signaling. CRISPR knock-in HiBiT-tagged EGFR cells allowed researchers... carried by extracellular vesicles (EVs), edited transcripts could endow neighboring cells with pro-oncogenic...Degradation of Misfolded CFTR. Cells, 12(23), 2741. https://doi.org/10.3390/cells12232741  Kamio, T., Kono, Y.,... fusions utilizing bulky tags can disrupt normal cell biology and make it hard to capture true protein...researchers with a means to quickly iterate, work across cell models, and even introduce mutations. This vector-based...and other fluorescent proteins revolutionized live-cell protein detection, their bulk (~27 kDa) can perturb...Bioluminescence detection is a cornerstone of modern cell-based assays and enables ultra-sensitive detection...
  2. Plasmids 101: Choosing an Antibiotic Resistance Gene

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    ...prevent cell death. One of the cool things about amp is that it's exclusively toxic to dividing cells. The... continuous cellular processes (e.g., protein synthesis), while amp only affects the cell wall synthesis...Check icon" %} Spectinomycin Excellent No Just bacteria Not SHuffle cells {% icon icon_set="fontawesome...icon" %} Zeocin Excellent No Bacteria, plants, and eukaryotes Not Tn5-containing cells {% icon icon_set..., penicillin, and is a beta-lactam that inhibits cell wall synthesis. The AmpR (amp resistance) gene produces...synthesis step during cell division. This is nifty because the recovery period after transformation (the dreaded...at 37 degrees) can be shortened since the plated cells will have time to produce beta-lactamase prior to...
  3. When is a Monomer not a Monomer? The Top Three Ways Your Favorite Fluorescent Protein Oligomerizes in Cells

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    ...transcriptional reporter or as a general cytoplasmic label of cells, there's no problem. You're OK. However, if you ...(POI) to GFP to study the protein's behavior in cells, in solution or something in between, you are using...fluorescent protein (FP) could be forming dimers in cells. Why should you care? Three simple ways a dimeric...nanomolar Kd will exist primarily as a dimer in cells while a protein with a high micromolar or low millimolar...millimolar Kd is unlikely to form dimers in a cell. The Kd of EGFP is 0.11 mM [2]. Following the simple...might think EGFP is unlikely to form dimers in a cell. Unfortunately, things are not quite so simple. ...research situations, the relevant volume is that of the cell. For the physical behaviors associated with a molecule...
  4. Avoiding the Dark Side of Fluorescent Protein Fusions with mOX FPs

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    ...numerous cell biology assays. However, there has been a pervasive view that most FPs in a cell will fold...fluorescent fusion proteins in cell biology."Current Protocols in Cell Biology (2005): 21-4. Pubmed PMID...Lee. "Fluorescent proteins: a cell biologist's user guide." Trends in cell biology 19.11 (2009): 649-655...Fluorescent proteins in cellular organelles: serious pitfalls and some solutions." DNA and cell biology 32.11 (...-fusions on quantitative imaging experiments and cell physiology in general. Pitfalls of Fluorescent Protein...quantitative imaging experiments or even negatively impact cells (see Figure 1). When behaving properly, FPs enable...dynamics of fluorescent protein fusions in live cells in real time. Previously, we have described a number...
  5. Supporting Rare Disease Research with the 2020 BeHEARD Awards

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    ... trigger the activation of dendritic cells, macrophages, T cells, and the recruitment of neutrophils. ... says. In induced pluripotent stem cells derived endothelial cells from women who are missing an entire...detect molecules outside of the cell and translate those signals into cellular responses. For example, GPCRs...maintaining the nutrient and ionic balance of the cells,” says Dr Sangeetha Iyer, ACD’s Scientific Advisor...that solute channels typically expressed on other cell types can compensate for or bypass the dysfunction...collection to perform a functional screen in mammalian cells to identify any solute channels that can compensate...be able to validate their findings in mammalian cells with both human and murine targets thus informing...
  6. Creating accessible biology activities in schools with BioBits

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    ...on freeze-dried, cell-free (FD-CF) components. Making proteins outside of a cell - cell free extracts Typically... into a host cell (through a process called transformation), essentially giving the cell all the instructions...to dispose of the live cells. The alternative is to express the protein in a cell-free manner. This is ...electrophoresis to separate DNA or transforming cells with green fluorescent protein, these activities...transcription and translation. Unfortunately, having live cells in a classroom presents equipment needs, such as...operating the rest of the car as well. Similarly, cell free expression systems contain all the parts needed...handle a living, replicating organism. Furthermore, cell free systems can be freeze-dried into pellets (FD-CF...
  7. Viral Vectors 101: AAV Variables That Matter

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    ... where many different cell types, or even different phenotypes of the same cell type, are intermingled...postsynaptic cells when used at very high titers (Zingg et al., 2017), which can lead to cells in far away...Therapy: An Overview. Cells, 12(5), 1–41. https://doi.org/10.3390/cells12050785 Murlidharan, G., Samulski...Therapy: An Overview. Cells, 12(5), 1–41. https://doi.org/10.3390/cells12050785 Kanaan, N. M., Sellnow...experimental conditions and measurements; (2) the cells you’re targeting; (3) how much expression is needed... capsids, which determine how a virus enters the cell. Different serotypes utilize a number of different...co-receptors, and other mechanisms to gain entry into the cell (Dudek et al., 2018; Korneyenkov & Zamyatnin, 2021...
  8. Viral Vectors 101: AAV Serotypes and Tissue Tropism

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    ...particle sneaks its way into cells. Generally, AAV serotypes have a primary cellular receptor and sometimes ...transduction efficiency, and is an excellent choice for targeting cardiac cells (Bish et al., 2008). It can ...-associated viruses. Cell, S0092-8674(25)00692-0. https://doi.org/10.1016/j.cell.2025.06.026 Halbert, ... Therapy: An Overview. Cells, 12(5), 785. https://doi.org/10.3390/cells12050785 Kaludov, N., Brown, K....tissue tropism, allowing them to target particular cell types. Figure 1: Diagram of AAV components...key that lets AAVs “unlock” and infect specific cells. This protein shell packages the vector’s genetic...multiple coreceptors, which may be present on different cell types and sometimes vary between target species ...
  9. An Introduction to Adenovirus

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    ... AdVs is dependent on modulation of the host cell’s cell cycle; inhibition of the innate immune system... in the producer cells where there is E1 and E3 gene complementation. In target cells that are infected...death of adenoid cells in vitro (Rowe et al., 1953). While overt death of the targeted cells is less likely...infection for efficient cell lysis and release of adenovirus from infected cells. J Virol, 70(4), 2296.... & Verma, I. (1998). Cellular immune response to adenoviral vector infected cells does not require de ...production and/or by genes present in the HEK293T cell line used (which have fragments of the AdV genome...achieves persistent transgene expression in certain cell types (Tatsis et al., 2007), potentially because...
  10. Fluorescent Proteins 101: Green Fluorescent Protein (GFP)

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    ...measure, and control molecular signals, cells, and groups of cells in order to understand their activity...Fluorescence-activated cell sorting (FACS): This is a type of flow cytometry that separates mixtures of cells into distinct...Thus, FACS can be used to separate cells expressing GFP from cells that are not. Developmental/transgenic... localization profiles, acting as a biosensor or cell marker, studying protein-protein interactions, visualizing... was non-toxic and could be expressed in living cells, enabling the study of dynamic, physiological processes...monitor gene expression from that promoter in a given cell type. This type of transcription reporting was among...find optogeneic actuators and sensors at Addgene. Cell marking/selection: Expression constructs like plasmids...
  11. Hot Plasmids - May 2022

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    .... Nat Cell Biol. 2022. https://doi.org/10.1038/s41556-021-00836-1 Visual barcodes for live cell clonal...with one visual barcode per cell and up to 200-plex with two barcodes per cell. The researchers validated...long sequence knock-ins Visual barcodes for live cell clonal multiplexing Improving flexibility for ... powerful approach for proteomic mapping in both cell culture and whole organisms (see our 2019 overview...reduced risks of unwanted mutations in mammalian cells. Long sequences traditionally have higher risks ...multiplexing by: Rachel Leeson Multiplexed images in live cells remains a challenge due to multiple factors, including...flourescent proteins that can be inserted into a cell without disrupting its functions. Recently, Ravid...
  12. Viral Vectors 101: Viral Applications

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    ...difficult-to-transfect cell types ranging from primary to embryonic stem cells. Viral integration of a... also generally less toxic to cells than transfections, preserving cell viability. Library delivery Screening...Viral applications Viruses work by infecting a host cell (the target of viral infection) and delivering a...to be anything you want delivered to your target cells. This delivered DNA/RNA can then be either permanently...permanently integrated into the genome of the target cell or transiently expressed. It’s important to note...This vector can express your construct in target cells transiently or constitutively depending on the virus...transcription factors, barcoded libraries to trace cell lineage, and so much more! Libraries allow you to...
  13. Reagent Repositories Are Speeding up Science During the Pandemic

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    ...4,000 cell lines. Seventeen of these cell lines were used to investigate the susceptibility of cells from...additional cell line used in this study came from the Japanese Collection of Research Bioresources Cell Bank...that SARS-CoV, which entered human cells via hACE2, could not enter cells expressing murine ACE2 (Subbarao...repositories that distribute mouse strains, plasmids, cell lines, and much more have been critical for pandemic...from Reproducibility for Everyone. Case study 1: Cell lines Many of the reagents used to investigate SARS-CoV...accelerating research into this virus. One such example is cell lines. The American Type Culture Collection (ATCC...of this pathogen. The sharing and distribution of cell lines from repositories on opposite sides of the...
  14. Hot Plasmids and Viral Preps - January 2021

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    ...fluorescence-activated cell sorting (FACS) helps researchers sift through thousands of cells to identify cells exhibiting...target single cells. Now, Francois St-Pierre’s lab developed a new form of FACS-based cell screening, Single-cell...individual cells with unique spatiotemporal phenotypes from large heterogeneous cultures.  HeLa cells expressed... conformational changes in a protein.    Cells expressing an RFP reporter plasmid for recombinase...is active in vitro as well as in human and plant cells. Casɸ from Biggiephage can eliminate competing... Single-cell Phenotypic Observation and Tagging with Light (SPOTlight) as a way to isolate individual ...of keratin with mGold (top) and mVenus (bottom). Cells were imaged every 30 seconds for 3 hours. Image ...
  15. Lentivirus Plasmids

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    ...Lentivirus can transduce both dividing and non-dividing cells without a significant immune response. These viruses...expression of hTERT, used to create immortalized cell lines. See Hayer et al. (2016) for additional selection...pBOB-EF1-FastFUCCI-Puro 3rd Encodes FUCCI reporters for cell cycle analysis. Puromycin selection. Kevin Brindle...
  16. Cancer, Inflammation and Immunity - Harnessing the Body’s Defenses to Fight Cancer

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    ...cancers. It was inspiring to participate in the 2017 Cell Symposium on Cancer, Inflammation and Immunity and...recent findings in basic immunology, cancer-immune cell interactions, cancer immunotherapy, as well as new...example the upregulation of the immunosuppressive cell surface receptor PD-1. This immunosuppressive environment...follow the interactions between tumor and immune cells in real time. Addgene depositor Professor Max Krummel...effect of PD-1 blockade.“ (Ref 4). PD-1 helps tumor cells evade the immune system - COX inhibitors like aspirin...therapeutics such as  (Chimeric Antigen Receptors) CAR T cells and PD-1 modulators. An exciting development in ...combination of the CRISPR/Cas9 methodology with T cell receptor engineering (Ref 5)  as described by Blue...
  17. Hot Plasmids - December 2019 - CRISPR pooled library, LipoGlo, CRISPRa, and Voltage Imaging Tools

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    ... on the method used to introduce the gRNAs into cells. Most CRISPR pooled libraries have been created ...the chance of transducing a only a single gRNA per cell. The viral DNA containing the gRNA then integrates...next-generation sequencing of the genomic DNA. However, some cell types are poorly transduced by lentivirus, and thus...CRISPR libraries was not possible. Primary murine T cells cannot be transduced by lentivirus and have been...library was used to transduce T helper type 2 (Th2) cells from mice that constitutively express Cas9 and screen...CRISPR pooled library can be used for screening of cells that are refractory to lentiviral transduction, ..., now enabling forward genetic screens in cells with few genetic tools. Find the mouse CRISPR knockout...
  18. Hot Plasmids - November 2023

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    ... between living cells by TransitID. Cell, 186(15), 3307–3324.e30. doi: 10.1016/j.cell.2023.05.044. PMID...lentivirus and MMLV gag, to specific cell types. It can also make CAR-T cell therapy more accessible by simplifying... efficient prime editors. Cell, 186(18), 3983–4002.e26. doi: 10.1016/j.cell.2023.07.039. PMID: 37657419...called DIRECTED (Delivery to Intended REcipient Cells Through Envelope Design). This modular approach ...viral surface, expanding the range of targetable cell types. DIRECTED is compatible with fusogens from...process and could even enable the creation of CAR-T cells directly within the body. Overall, DIRECTED can ...DIRECTED plasmids here! Strebinger, D., et al. (2023). Cell type-specific delivery by modular envelope design...
  19. Fluorescent Proteins 101: Fluorescent Protein Timers

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    ...to monitor cell, organelle, and protein localization. For instance, you might dye your cells and look at...either in whole cells or as a pool of fusion proteins localized to a specific region of the cell. For example...the relationship between the age of a cell, protein, or cellular structure and a particular biological...trafficking to a subcellular location, start of gene expression, development of a cell structure, etc)....timers, researchers can look at a single image of a cell and understand how protein localization changes ...was a tetramer with a propensity to aggregate in cells (Tsuboi et al.), limiting its use. Nonetheless, ...versatile timer could be used in vitro, in mammalian cells, in C. elegans, and in Xenopus embryos. Of course...
  20. CRISPR Between the Genes: How to Experiment with Enhancers and Epigenomics

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    ... for stem cells, or metastasized tumor cells, or alzheimers-affected neurons, or [your cell line of interest...critical to stem cell survival. Knowing which genes influence the survival of our cell culture is the foundation...minimal side-effects on healthy cells and maximal effect on unhealthy cells. Until recently, the human genome...ENCODE project, find enhancers in embryonic stem cells, and conclude with a targeted CRISPR screen that...essential transcription factor in embryonic stem cells (ESCs). Your ChIP-seq finds just over 13,000 significant...We start by infecting millions of embryonic stem cells (ESCs) with a lentiviral vector, an attenuated retrovirus...The result is a heterogenous population of stem cells, usually housed in a single flask. Through a bit...
Showing: 221 - 240 of 813 results