UofC Calgary
Our Project
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Project Description
Each year on Earth, individuals receive 2.4 mSv of ionizing radiation (IR), which is easily tolerated by our cells. In space however, without the protection of the magnetosphere, astronauts are exposed to high levels of IR in the range of 50 to 2000 mSv which causes the accumulation of deleterious double strand breaks in DNA. Despite current research into methods of IR protection, many solutions such as radiation shield coating are expensive. Biological solutions such as the use of radioprotectors are also subjected to the sinusoidal pharmacokinetic problem resulting in the need for constant administration and the accumulation of waste.
Certain naturally-occuring proteins and peptides, such as the modified Bowman-Birk Inhibitor (mBBI), have been found to confer protection against DNA damage in cells exposed to ionizing radiation. Previous studies have shown that BBI increases the survival rate of cells significantly when irradiated, by augmenting endogenous DNA repair mechanisms.
To solve the problem of creating a cost effective, continuous delivery system for IR protection, we have designed a transdermal patch for the delivery of mBBI through the skin. The patch hosts recombinant Bacillus subtilis that expresses a mBBI gene tagged with a transdermal tag that allows the peptide to travel through the skin layers, and into the bloodstream for dispersal throughout the body. Using B. subtilis for the production of mBBI allows for constant delivery bypassing the sinusoidal pharmacokinetic problem. Its long term, continuous delivery will also create a cost effective solution. Ultimately our transdermal delivery system allows for the administration biotherapeutics within an efficient and practical system.
Our Project
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Radiation
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Access to Nutrients
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Resource Limitations
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Reusable Framework
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Escherichia coli
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Basillus Subtilis
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Deinococcus radiodurans
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Our Project
About us
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- Lit af project
- Sick lab
- Huge fam
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