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Profiling the mouse brain using fluorescent immunolabeling  Tony Beristain Ph.D.  Tissue Profiling Facility  Science for Life Laboratory KISP (Karolinska Institute Science Park)
Aims and Objectives ,[object Object],[object Object],[object Object],[object Object]
Protein distribution profile in the adult CNS Regions Cell types Subcellular Organelle Lundberg & Uhlén, Proteomics, 2010 Subcellular Protein Atlas Mouse brain
Developing mouse ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Mulder et al., EJN, 2010
Neurological disorders ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Experimental Approach Mulder et al., 2007 (Neurosci.) Resolution 16,000 x 30,000 pixels
Fully automated IHC  Capable of processing big volumes  Speed  Efficiency  Reproducible quality  Simplicity of operation  No daily maintenance  Widely used in several hospital around the world
Building up and Optimizing our protocol  ,[object Object],[object Object],[object Object],Classic IHC protocol Playing with variables:  Concentration (1°and 2° ab) Diluting abs in DMSO/Glycerol  No. of washes  Time   Thickness of tissue αHPA034492 αHPA008176 αHPA008273
So far… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],CLASSIC IHC  3 antibodies per 1.5 days  Variable staining quality  Some sections come off during washes  High volumes of antibodies  Time demanding  Exhausting manual labor ADVANTAGES vs
So far… ,[object Object],[object Object],CLASSIC IHC  Uniform staining vs DISADVANTAGES αTH αTH αHPA023338 αHPA023338 αHPA023338
Wishing list to Leica-Bond ,[object Object],[object Object],[object Object]
For enquires contact: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Tony beristain helsingor bondtalk2

  • 1. Profiling the mouse brain using fluorescent immunolabeling Tony Beristain Ph.D. Tissue Profiling Facility Science for Life Laboratory KISP (Karolinska Institute Science Park)
  • 2.
  • 3. Protein distribution profile in the adult CNS Regions Cell types Subcellular Organelle Lundberg & Uhlén, Proteomics, 2010 Subcellular Protein Atlas Mouse brain
  • 4.
  • 5.
  • 6. Experimental Approach Mulder et al., 2007 (Neurosci.) Resolution 16,000 x 30,000 pixels
  • 7. Fully automated IHC  Capable of processing big volumes  Speed  Efficiency  Reproducible quality  Simplicity of operation  No daily maintenance  Widely used in several hospital around the world
  • 8.
  • 9.
  • 10.
  • 11.
  • 12.

Editor's Notes

  1. 25,000 protein coding genes in human: Human genome (2.9 Gbs) only slightly bigger than rat (2.75 Gbs) and mouse (2.6 Gbs) genome Most human genes have homologues in rodent Tissue availability is no issue Rodent brain tissue can be processed under ‘perfect’ conditions Size of the rat/mouse brain allows us to investigate many brain nuclei on a single section (13-10 mm) Relating molecular properties to cellular functions. 13,154 available antibodies Offering are services to analyse protein distribution in animal and human tissue
  2. Cell types: Neural, Non neural Basic cellular distribution such: Nucleus, soma, dendrites, axons, synapses.
  3. Automated image acquisition of full brain sections Automated annotation and quantification of immunoreactivity
  4. The research functionality of the Leica Bond fully automated stain- ing system is an ideal support to the research laboratory, offering consistency and standardisation over conventional manual research techniques and between different researchers working within the same field The number one benefit of any staining system must be the quality; it must produce a very high quality stain. Other factors also include TAT, cost of reagents and programmability with ease-of-use. The system should further standardize your laboratory process, eliminating errors and eliminating manual processes.
  5. With Bond we have double our work flow…generally with a hand made IHC we could process 3 antibodies in one and a half day. With Bond up to 6. On the top of this we can process extra antibodies running a overnight protocol. When it comes to the quality of staining I have to say that is clean and good, although we have encountered a problem which so far we haven’t been able to solve. But I will talk about that later. An extra feature that I do like is that the Covertile technology helps retain tissue on the slide, and is a gentle process compared with the hand made IHC in which between washes some sections are lost - As additional benefits I would mention the cost and time savings. We use 150 μL of each reagent for the entire slide on every slide no matter how much of the slide has tissue.