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We narrowed to 762 results for: cell

Showing: 101 - 120 of 762 results
  1. Lentiviral Prep Service

    Type
    Collection
    ...19973 barcodes to combinatorially index cells for single-cell analysis of clonal dynamics. This library... 4934 barcodes to combinatorially index cells for single-cell analysis of clonal dynamics. This library... 5737 barcodes to combinatorially index cells for single-cell analysis of clonal dynamics. This library...
  2. Depositor Collections

    Type
    Collection
    ...Institute for Cell Science Plasmid Collection E11 Bio PRISM Collection New England BioLabs Cell-Imaging Plasmid...Botman-Teusink Yeast FP Collection Protein Expression Cell Migration Consortium Malate Dehydrogenase CUREs ...
  3. Cancer Research Plasmids and Resources

    Type
    Collection
    ...important to normal cell signaling and physiology, and, when dysregulated, can enable cancer cell survival. Although...that is essential for regulating the growth of the cell. p53 p53, the most frequently mutated gene in human...
  4. CRISPR Plasmids - Empty gRNA Vectors

    Type
    Collection
    ...Cas protein and a target-specific gRNA in the same cell at the same time. All-in-one plasmids ensure that...both the Cas and gRNA are delivered to the same cells, but are limited to the function of the Cas protein...an additional plasmid containing a Cas enzyme or cells or organisms in which Cas has been integrated into...
  5. CRISPR Plasmids - RNA Targeting

    Type
    Collection
    ...to activate programmed cell death or dormancy for phage-infected bacterial cells so as to limit the spread...population. Type VI enzymes that function in mammalian cells can be used to attentuate RNA levels. In mammalian...
  6. Bacterial Expression Systems

    Type
    Collection
    ... location of your protein of interest within the cell, you will need to tag it with something that makes...fused to FPs and monitor their localization in live cells. ID Plasmid Tags PI Additional Addgene Protein Visualization... and expression species. The New England Biolabs Cell-Imaging Plasmid Collection contains plasmids for... inside living or fixed bacterial and mammalian cells. Addgene Blog A Guide to Selecting Fluorescent Dyes... Siouxsie Wiles 106476 pET28a_T5-ARG1 Bacterial cells Ultrasound (acoustic reporter gene, ARG1) Escherichia...Mikhail Shapiro 106473 pET28a_T7-ARG1 Bacterial cells Ultrasound (acoustic reporter gene, ARG1) Escherichia...Mikhail Shapiro 106474 pET28a_T7-ARG2 Bacterial cells Ultrasound (acoustic reporter gene, ARG2) Escherichia...
  7. Antibodies 101: Flow Cytometry

    Type
    Blog Post
    ...plot of CD3 (T cell marker) versus CD19 (B cell marker) to separate the B cell and T cell into distinct...separate the B cell population into progenitor B cells, immature B cells, plasma cells or others.   ...determining cell health, analyzing cell cycle stages, and detecting specific populations of cells in a complex.... As cells pass through the flow cell the size of the sample stream is reduced forcing the cells to line... photons varies from cell to cell depending on the level of fluorescence. A cell expressing high levels...within the cells and then permeabilize the cell membrane to allow antibodies to pass through the cell membrane...studies B cells, might then gate the B cell population and create a histogram of CD19-containing cells versus...
  8. Optogenetics Plasmid Collection

    Type
    Collection
    ...to blue light and allows cations to flow into the cell. Variants of channelrhodopsin have been engineered...improve the expression and membrane targeting in host cells. Other microbial opsins, such as the Halorhodopsins...actively move cations or anions into or out of the cell. When using these opsins as a tool to control neuronal...
  9. TALEN Engineering

    Type
    Collection
    ...Tesson et al., Nat Biotechnol. 2011 ) Human somatic cells ( Miller et al., Nat Biotechnol. 2011 ; Reyon and...., Nat Biotechnol 2012 ) Human pluripotent stem cells ( Hockemeyer et al., Nat Biotechnol. 2011 ) TALE...TALE transcriptional activators in human cells ( Maeder et al., Nat Methods 2013 ) More detailed information...
  10. Antibodies 101: Beyond Surface Labeling

    Type
    Blog Post
    ...out all CD8+ T cells from a mix of CD8+ T cells, CD4+ T cells, B cells, and dendritic cells. In this case...dumped”. From left to right: B cell, CD4+ T cell, dendritic cell, CD8+ T cell. Created using biorender.com...amines on the cell surface, which yields a much weaker signal on live cells compared to dead cells. As a result...comes to labeling cells for flow cytometric analysis, the most common method is a cell surface label, where...through the cell membrane freely, while others require a permeabilized membrane to enter cells. Depending... in one of the various cell populations; for example, CD8+ T (“T killer”) cells. Typically, you would ...vivo adoptive transfer of those CD8+ T cells, require the cells to be minimally altered, so you would ...
  11. Antibodies 101: Introduction to Gating in Flow Cytometry

    Type
    Blog Post
    ...Many cell types can be found in the tumor microenvironment (tumor cells, immune cells, blood cells and ...about 53% of my cells are dendritic cells and ~13% are CD8+ T cells. Around 34% of the cells are neither ...neither of the two cell types (likely B cells and others). Almost no cells stain positively for both markers...measure your cells of interest. In many experiments you’ll be working with a heterogeneous cell population...processed piece of tissue, where cells are present that vary in cell type, size, and marker proteins. ...analyzing a homogenous cell population in culture, it is normal to observe diversity in cell size, marker expression...illuminates the passing cell with a laser and detects the light scattered by that cell at a low angle (FSC...
  12. Cancer and the Immune System: Deciphering the Relationship

    Type
    Blog Post
    ...activity, and consists of other cell types, especially immune cells and cells of epithelial origin. Suppressing...turns off T cell function upon interaction with APCs. Furthermore, tumor cells alter their cell-surface proteome...molecules needed for T cell effector function. Cancer cells also produce programmed cell death ligand (PD-L1... activity of CTLs and NK cells. These cells would normally kill cancer cells but are directed not to through...to use whole cell therapeutics consisting of various types of immune cells. Dendritic cells (DCs) are particularly... intravenously. B cells and T cells activated ex vivo are also contestants for cell-based immunotherapy... include: Cell heterogeneity Tumors are composed of a wide variety of cell types. This cell heterogeneity...
  13. Plasmids 101: Mammalian Vectors

    Type
    Blog Post
    ...transfected cells may be considered an entirely new cell line from that of the original parental cells. Positive...cultured mammalian cells. Of course, these mammalian vectors must be compatible with the cell type they are...bacterial cells); however, the techniques and reagents vary. Plasmid transfection into mammalian cells is fairly...expression levels in the cells. Ideally, the chosen reporter is unique to the cell, is expressed from the...components expressed in trans within the cell for effective replication. Cell lines expressing the Epstein–Barr...mammalian cells To achieve stable transfection, there should be a selective pressure to force cells to incorporate...(basically growing cells in various concentrations of the selection reagent). Cells should die within ...
  14. What the HEK?

    Type
    Blog Post
    ...embryonic kidney (HEK) cells originated from? Or why they are such a commonly used cell culture model? In ...isolating the cell line all the way to modern applications. What the HEK is it?   HEK cells were first ...inconsistent with kidney cells (Shaw et al.). Since then, transcriptome studies of the cell line have determined...any unwanted material (HEK cells, etc.) and are ready to use on another cell or organism. This pipeline...where HEK cells may be particularly useful due to their intrinsic properties. HEK-293 cells are tumorigenic...researchers using the cell line. What the HEK is wrong with it?   All cultured human cell lines are susceptible... your cells can catch a cold—or worse! HEK-293T and its derivatives are immortalized, but cell health...
  15. The Breast Cancer Microenvironment: A Tumor’s Backstage Team

    Type
    Blog Post
    ...and spread of cancer cells. Besides these stromal cell modifications, stromal cells are also constantly...how cancer cells influence microenvironments and vice versa, let’s take a look at cancer cell metabolism...inflammation, a noteworthy cell type in the tumor microenvironment is the immune cells. The contradiction is...injecting breast cancer cells into mice, exosomes expressed specific integrins (cell-adhesion proteins) targeting... be transferred to other cells, inducing epigenetic changes in targeted cells. In this case, exosomes ...Friendly” microenvironment cells Not all is bad news – we also have “friendly” cells in microenvironments! ...Take myoepithelial cells for instance. They retard tumor formation by inhibiting cell growth, invasion,...
  16. Plasmids 101: Protein Expression

    Type
    Blog Post
    ...produced using complex mixtures derived from cells or using live cells. There are several types of expression...consists of transfecting cells with your DNA template of choice and allowing these cells to transcribe, translate...demanding cell culture conditions compared to other systems. Insect expression systems Insect cells can also...coli or yeast cells. The only problem with baculovirus systems is that the infected host cell is eventually...eventually lysed. Cell lysis halts protein production, but there are non-lytic insect cell expression systems...Sf21, Hi-5 cells)  that allow for continuous expression of genes integrated into the insect cell genome. ...that is then transformed into a bacterial cell. Transformed cells propagate, are induced to produce your ...
  17. Mycoplasma Contamination: Where Does It Come From and How to Prevent It

    Type
    Blog Post
    ...mycoplasma contamination in your cell culture or you are about to begin a new cell culture project. If mycoplasmas...present in most of the cell culture facilities, tissue culture labs and every cell culturist has to deal...cost-effective (Sung, 2006). The sensor cell-based method uses specialized cells that can detect the presence of... should be made available for cell culturing and maintenance of the cell lines. Providing such an environment...Photo by Kate Harten DeMaio. Cell lines and reagents Examine your cell line stock for mycoplasma contamination...cryopreserved vials of the cell lines even though the viability of cryopreserved cells decreases with every ...cause mycoplasma infection from one cell line to another. Multiple cell lines should not be stored in a single...
  18. Antibodies 101: Reading a Flow Plot

    Type
    Blog Post
    ...-B+ cells, and A+B+ cells, but no cells that are A+B-.      Figure 3: It's often easier to identify...population of B cells and dendritic cells (DCs) in the lower middle right. DCs and B cells are HLA-DR+ and...single cells in a population. It can be used to measure protein expression, identify rare cells, or even...looking for cells in a sample that are negative for marker A and positive for marker B, or A-B+ cells. If you...the cell populations as a guide  (Figure 3.) You can see that in our dot plot, we have A-B- cells, A-B...the first step is to separate cells from debris and roughly group the cells by size. This is done using ... and FSC are measured to differentiate cells from debris. Cells are gated, and in the gated population...
  19. Performing In Vivo CRISPR Screens Using the FITS Approach

    Type
    Blog Post
    ...activated T cells, precluding analyses of T cell differentiation beginning with naïve T cells. The Framework...screens have been used to interrogate T cells, an important immune cell type, in more complex and physiological...naïve T cells. More broadly, this system can be used to perform in vivo screens in other cell types. A...screens to assess T cell responses and clonal dynamics in lymph nodes (LN) and tumor cells. Figure used with...FITS In vitro CRISPR screens in immune cells have identified many putative regulators of immunity. However...Framework for In vivo T cell Screens (FITS) approach (Milling and Markson et al., 2024), developed and deposited...enables efficient knockout (KO) of genes in immune cells; (2) is not immunogenic, a necessity for in vivo...
  20. Tips for a 1st Time CRISPR User (by a 1st Time CRISPR User)

    Type
    Blog Post
    ...performed on whole-cell extracts from the initial stable cell pool (pool) and from individual cell expansions ... in several human cancers) in A549 cells (a human lung cancer cell line), armed only with viruses obtained...need our A549 cells to express Cas9. In these particular experiments, we generated A549 cells stably expressing...52962-LV, Figure 1). Some cells were then used to generate a monoclonal cell lines by limiting dilution...The rest of the cells were frozen down. Figure 1: Cas9 expression in A549 cells transduced with...blotting was performed on whole-cell extracts from stable pools of A549 cells transduced with Cas9 expressing...A549 cells are relatively easy to transduce. I ended up with too many Cas9 integrations per cell, and ...
Showing: 101 - 120 of 762 results