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Research areas
    ADME-Tox
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    Cell Sourcing - Cell Culture Technologies
    Drug Discovery
    Gene Expression - Molecular Biology
    Stem Cells
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Tebubio's blog - Acting and reacting in life sciences and biotechnologies
  • Home
  • Research areas
    • ADME-Tox
    • Biomarkers
    • Cell Biology and Signalling
    • Cell Sourcing – Cell Culture Technologies
    • Drug Discovery
    • Gene Expression – Molecular Biology
    • Stem Cells
    • Supplying Discovery Tools
  • Contact us
  • Meet the authors
Supplying Discovery Tools

Wouldn't you like to spend less money on your reagents?

03/06/2015 by Ali El Baya, PhD No Comments

We all have certain consumer buying habits. But we also know that sometimes we do not necessarily get the best products at the most price-attractive conditions, if we simply buy the same products from the same source again and again…

What is true for our private behavior, most probably applies to our habits when it comes to buying research reagents for our laboratory.

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Biomarkers

Focus on apolipoproteins

by Ana Arraztio No Comments
Untitled

Role of apolipoproteins in different diseases.

Apolipoproteins, with amphipathic properties, form lipoprotein particles with phospholipids and transport hydrophobic lipids through lymphatic and blood circulations to designated peripheral tissues or organs for energy supply, biomolecule synthesis, or degradation. Off-balance of apolipoproteins has been implicated in numerous diseases such as SLE, myocardial infarction, Alzheimer’s, and diabetes. Apolipoproteins emerge as risk markers to pinpoint different diseases.

For Cardiovascular diseases, apoF and apoB seem to have a predominant role.

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News

Biomarkers and shear stress

by Ana Arraztio No Comments
Untitled

Costaining of pAkt-1S473 (red) and PECAM-1 (green) after 30 min flow-adaptation and 5 min ortho- (D) or retrograde flow (E). Image was obtained using Cat. No. 039200-301-J34L for p-Akt staining.

Research nowadays aims at working on models as similar as possible to the real physiological status. This includes the modification of cell culture conditions, For example, one should perform cell culture under “real” oxygen levels (e.g. hypoxia, normoxia, physioxia). For circulating cells, shear stress is a key factor, as cells behave in a different way depending on whether they are cultured under static or dynamic conditions.

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Supplying Discovery Tools

Good news for Illumina mRNA array users

by Ana Arraztio No Comments

Recently, Illumina informed their customers that their whole-genome arrays for mouse and FFPE-human samples were to be discontinued. This came as a shock to some researchers that had already started studies using them, or had grants approved and would use them in the future.

Considering other technologies when you have one that is working is really difficult. In Science as well as in life in general, if something works, don’t touch it. That said, if the products you are using are discontinued, you really have to start looking for alternatives.dna5_img_01

Today, let’s take a look at an alternative to Illumina microarrays… that in fact has some advantages, including lower background and higher robustness, among other benefits.

This alternative is based on the 3D-Gene technology developed by Toray. We have discussed this technology, and its use for miRNA studies, in previous posts, but today we will focus on its use for mRNA studies.

The mRNA Oligo chip from Toray was selected from the well-established oligo DNA set for microarray from Operon Biotechnologies Inc. – AROSTM v 3.0 and v 4.0. The selection was made with a focus on genes with substantial annotation information. Therefore, a researcher can perform an analysis without being misled by ambiguous information.
The main public databases used in the design of the probes include Ensembl human database, NCBI human RefSeq and H-Invitational Database.

tebu-bio, Toray Reach Agreement for miRNA, mRNA Profiling TechnologyArrays are available for human (25k), mouse (24k) and rat (20k). Access to this technology is easy, as it is also provided as a service by tebu-bio’s laboratorios located near Paris. You only have to tell them when to collect your samples, and they’ll take care of the whole process!

If you’re interested in learning more about these arrays, as well as a comparison with other microarrays in the market, leave your questions below!

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