Hypoxystation In The Lab – Sequestration In Speckles

Got a Question? Request a Callback

Hypoxystation In The Lab – Sequestration In Speckles

The HIF (hypoxia-inducible factor) family of oxygen-sensing proteins are a crucial element of cells’ responses to alterations in their immediate environment, kicking off a signaling cascade involving more than 1000 genes. Hypoxystation users Taylor and See at the University of Liverpool describe novel insights into the subcellular localization of some of the HIF proteins and why the “where” determines the “how”.

ImageJ=1.51d unit=u00B5m
HIF-2α and HIF-1α both form heterodimers with HIF-1β, and while similarities abound between the isoforms, the two subunits are differentially expressed and regulated and have distinctly separate target genes. Taylor and See triggered HIF activation using microscope stage incubators and the Hypoxystation by Don Whitley Scientific to incubate HeLa cells in hypoxia (1%). They found that while HIF-1α distributes homogenously in the nucleus, HIF-2α diffuses freely through the nucleus but is concentrated in speckles that are tethered to nuclear structures close to active RNA polymerases. This distribution is not significantly altered by low oxygen levels.

The Hypoxystation provides physiologically relevant, in vivo conditions for cell culture and manipulation to ensure authentic behavior of cells. User-defined parameters for temperature, CO2, O2 and humidity, plus the workstation format, where cells reside throughout the entire duration of the assays, minimize the extra-physiologic shock that is known to negatively impact metabolism and growth. As the degree and duration of hypoxia are among the factors controlling HIF activity, the customizable oxygen atmosphere inside the Hypoxystation can contribute to deciphering the functionality of oxygen-sensitive signaling pathways.

Choose a Country

If you are based in Germany or Australia, please select the website of our subsidiary company there. A different selection of products is available in these countries. Otherwise, please select ‘English’ and you will be able to find your local distributor in the ‘Overseas Distributors’ section.

Contact Us
We are here to help

Share this

Please select your preferred language from the list below

Login

Forgot your password? Click Here