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We narrowed to 641 results for: ATO

Showing: 161 - 180 of 641 results
  1. Evolution of Brainbow: Using Cre-lox for Multicolor Labeling of Neurons

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    Blog Post
    ...construct (about 8 in Brainbow-1.0 mice.) The combinatorial effect of multiple, independent recombination...woodchuck hepatitis virus post-transcriptional regulatory element (WPRE), commonly used to increase transgene...plasmids References: Transgenic strategies for combinatorial expression of fluorescent proteins in the nervous... Lgr5 stem cells. Snippert HJ, van der Flier LG, Sato T, van Es JH, van den Born M, Kroon-Veenboer C, ...PubMed. Multiplex cell and lineage tracking with combinatorial labels. Loulier K, Barry R, Mahou P, Le Franc...
  2. Easi-CRISPR: Generating Knock-In and Conditional Mouse Models

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    Blog Post
    ... a variety of species, including the standard laboratory mouse. It’s also made targeted insertions relatively... Figure 6: Diagram of ovary and oviduct anatomy with the equipment used for i-GONAD. A micropipette...  Many thanks to Channabasavaiah B. Gurumurthy, Masato Ohtsuka, and Rolen M. Quadros for assistance with...Rolen M. Quadros, Channabasavaiah B Gurumurthy, and Masato Ohtsuka. “Easi-CRISPR for creating knock-in and...10.1038/nprot.2017.153 PubMed PMID: 29266098 Ohtsuka, Masato, et al. i-GONAD: a robust method for in situ germline...
  3. Viral Vectors 101: Optogenetic Tools

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    Blog Post
    ...light within a specific range of wavelengths. Excitatory channels allow positively charged ions such as...combine excitation and inhibition by using both excitatory and inhibitory channels activated at different... the opsin.      Figure 2: Diagram of excitatory (ChR2) activation by light showing ions flowing... a single pathway to activate various protein regulators at different points in the pathway. Photoswitches...., Shane, J. C., McKnight, D. J., Yoshizawa, S., Kato, H. E., Ganguli, S., & Deisseroth, K. (2019). Cortical...
  4. Performing In Vivo CRISPR Screens Using the FITS Approach

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    Blog Post
    ...in immune cells have identified many putative regulators of immunity. However, in vitro screens cannot...responses to cancer. The screen recovered known regulators, such as Ptpn2, Pdcd1, and Zc3h12a, demonstrating...Moreover, the screen identified putative novel regulators of CD8+ T cell responses in tumors, demonstrating...LaFleur is a Postdoctoral Fellow in Arlene Sharpe’s laboratory at Harvard Medical School and is interested in...
  5. 9 tips for a successful postdoctoral experience

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    Blog Post
    ...establish your own lab and get an independent investigator grant (e.g. an R01 from the NIH, in the United...can be found during conversations with senior investigators. Discussions can reveal mutual scientific interests...makes time for you, as needed, this is a strong indicator that this person cares about your science and ...manuscript reviews, etc. You'll also meet future collaborators and get access to unpublished information and...Einstein College of Medicine in the Department of Anatomy and Structural Biology, and now serves as the Director...
  6. Viral Vectors 101: Systemic Capsids

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    Blog Post
    ...customized to control transgene expression. Gene regulatory elements [promoters and enhancers, miRNA target...Abbreviations: AAV, adeno-associated virus; GRE, gene regulatory element; NHP, non-human primate. Many of...broad):  enhanced coverage for inhibitory versus excitatory neurons Mice, rats Yes (LY6A) Chan et al...AAV.CAP-B10 CNS: balanced coverage of inhibitory and excitatory neurons Mice, marmosets Unknown Brown et... frequently been used for screening candidate regulatory elements such as enhancers and promoters for ... its tropism is relatively more biased toward excitatory neurons than AAV-PHP.eB (Fig. 4c, Jang et al....., … Tasic, B. (2021). Enhancer viruses for combinatorial cell-subclass-specific labeling. Neuron,109(...
  7. A Tour of Addgene's Most Popular Pooled Libraries

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    Blog Post
    ...libraries from the Samantha Morris lab use a combinatorial barcoding approach to observe clonal dynamics...nuclease-dead Cas9 is fused to a transcriptional activator or repressor to create a reversible effect. These...which stands for Multiplexed Overexpression of Regulatory Factors. The Feng Zhang lab developed this library...Element. This library consists of broad host range regulatory sequences ready to be assembled with other elements...
  8. Reagent Repositories Are Speeding up Science During the Pandemic

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    Blog Post
    ... availability of this strain from The Jackson Laboratory. Originally developed and characterized by Stanley...mouse strain is regaining popularity. The Jackson Laboratory, a nonprofit research institution, has been able...clinical manifestations, transmissibility, and laboratory studies of COVID-19: an observational study. ...of K18-hACE2 Mice Infected with Severe Acute Respiratory Syndrome Coronavirus. JVI 81:813–821 . https:...
  9. Cancer, Inflammation and Immunity - Harnessing the Body’s Defenses to Fight Cancer

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    Blog Post
    ...immunosurveillance. The presented study analysed a model of hepatocellular carcinoma, a cancer which can develop from ...self-limiting effects kick in trying to resolve the inflammatory state by inducing immunosuppressive measures...Chimeric Antigen Receptors) CAR T cells and PD-1 modulators. An exciting development in immunotherapy is ...a researcher to control immune signaling and inflammatory responses remotely with spatiotemporal precision...
  10. Viral Vectors 101: Types of viruses

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    Blog Post
    ...heterologous envelope or a post-transcriptional regulatory element can be used for either type of retrovirus...clinical settings. AAV is also a cool tool in the laboratory! It is ideal for whole animal administration,...population. Some adenoviruses are known to cause respiratory disease across species, as well as cancer in ...strains have been engineered to induce a lower inflammatory response within hosts. Relative to the other...
  11. TALEN Plasmids and Kits

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    Collection
    ... genome engineering. Fusions of transcription activator-like (TAL) effectors of plant pathogenic Xanthomonas...
  12. Supporting Rare Disease Research with the 2020 BeHEARD Awards

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    Blog Post
    ...activation of keratinocytes, which release inflammatory mediators that trigger the activation of dendritic...Generalized pustular psoriasis is a chronic autoinflammatory skin disease estimated to affect 0.27 to 4.6...IL-36 cytokines are a potent inducer of an autoinflammatory loop: keratinocytes both respond to and release...
  13. Plasmids 101: The protein expression toolbox

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    Blog Post
    ...CRISPR for that, too! CRISPR activators (CRISPRa) are transcriptional activators fused to a dead Cas9. The...increase expression. There are several flavors of activators which can be used with this approach - read more...them on our CRISPRa blog! Fig. 1 CRISPR activator and repressor mechanisms Want to transiently...
  14. All in a Twist: dsRNA

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    Blog Post
    ...sword – balancing antiviral benefits with the inflammatory response associated with the introduction of...threshold and thus do not typically activate an inflammatory response. However, if dsRNA sensors are mutated...its way outside of the mitochondria, the same inflammatory response can activate. These types of cellular... disorders, including some forms of lupus and rheumatoid arthritis. These types of immune responses are...
  15. Plasmids 101: CcdB - The Toxic Key to Efficient Cloning

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    Blog Post
    ...available to counteract the toxin. If, however, an investigator were to successfully clone an insert into the...insertion will completely replace ccdB with the investigator’s insert of interest. Hence correct clones are... behind the “swapping out” of ccdB with the investigator’s gene of interest.   CcdB resistant E. ...for non-cytotoxic proteins which retain their regulatory functions.” Mol Microbiol. 1995 Mar;15(6):1031...
  16. Teaching an Old DOG New Tricks: Controlling Protein Activity with GFP

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    Blog Post
    ...used red fluorescent proteins dsRed, mCherry, and TdTomato do not induce transcription. Thus, T-DDOGs can...expression robustly activated the reporter gene TdTomato, whose expression was absent without electroporated...T-DDOGs with two mouse GFP reporter lines; again, TdTomato was seen only in cells with GFP, at a high activation...frequency of 56-93%. In the converse test, 98% of TdTomato expressing cells were GFP+, indicating a robust...
  17. BeHeard Award 2018: Diseases of Glycosylation, Arginine Mutagenesis, & Neural Development

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    Blog Post
    ... infections along with a mild or exacerbated inflammatory response which leads to nearly 25% child mortality...understood.  In line with this, Prof. Videira and collaborators will use Addgene plasmids to immortalize CDG...discovery led them to investigate the use of a common laboratory chemical, guanidine hydrochloride, as a potential... 1939 for the treatment of botulism and Lambert-Eaton myasthenic syndrome (LEMS) because, at high concentrations...
  18. Nanoblades: Tiny CRISPR Ninjas for Genome Editing Difficult Cells

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    ...bone marrow (BM) cells, primary human hepatocytes, and hematopoietic stem cells (HSCs) using Nanoblades....deliver Cas9 variants, such as a transcriptional activator dCas9-VPR, if these variants are fused to the ...from GFP transgenic mouse  GFP  ~60-65% Human hepatocytes  Myd88  ~50% Human HSCs  Myd88  ~50% Table...
  19. The Materials Science of Optogenetics Experiments

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    Blog Post
    ..., 50ms “off”.  A pulse generator such as the A.M.P.I Master-9 Pulse Stimulator, which can control output...cable is threaded through—and fixed to—an optical insulator called a ferrule (below). The fiber optic cable...to give the animal the full range of motion, a commutator allows the patch cable to connect to the laser...
Showing: 161 - 180 of 641 results