Team:IBB Pune/BIOETHICS
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Synthetic biology is broadly defined as the area of intersection of biology and engineering, that is focused on: The design and fabrication of biological components and systems that do not already exist in the natural world and the redesign and fabrication of existing biological systems. A primary objective of this nascent research area is to create a programmable microorganism from scratch, as opposed to modifying components of living cells to achieve desired functionality. This distinguishes it from current genetic techniques that result in genetically modified organisms at the cellular level. How can we compare synthetic biology to other areas of biotechnology? Transgenic mice, bio-engineered plasmids, and other living forms are regularly created in the process of biomedical research. What would be the difference between these modified life forms and life forms created using a synthetic biology approach? In order to address these questions, the primary differentiators between synthetic biology and other techniques are outlined below. Synthetic biology systems would exhibit one or more of these attributes (first two are mandatory): | Synthetic biology is broadly defined as the area of intersection of biology and engineering, that is focused on: The design and fabrication of biological components and systems that do not already exist in the natural world and the redesign and fabrication of existing biological systems. A primary objective of this nascent research area is to create a programmable microorganism from scratch, as opposed to modifying components of living cells to achieve desired functionality. This distinguishes it from current genetic techniques that result in genetically modified organisms at the cellular level. How can we compare synthetic biology to other areas of biotechnology? Transgenic mice, bio-engineered plasmids, and other living forms are regularly created in the process of biomedical research. What would be the difference between these modified life forms and life forms created using a synthetic biology approach? In order to address these questions, the primary differentiators between synthetic biology and other techniques are outlined below. Synthetic biology systems would exhibit one or more of these attributes (first two are mandatory): | ||
Raw materials: Synthetic elements would be constructed from basic elements (synthetic or purified oligonucleotides in the case of synthetic DNA) in the lab (and not as part of a natural cellular process). | Raw materials: Synthetic elements would be constructed from basic elements (synthetic or purified oligonucleotides in the case of synthetic DNA) in the lab (and not as part of a natural cellular process). | ||
+ | <ul> | ||
- | + | <li>''No natural counterpart:'' Synthetic elements or networks would not have an identical copy in natural cells. The caveat would be synthetically created whole genomes of existing organisms – although a minimal genome (critical genes for survival) organism would be more likely. | |
- | + | <li>'' Programmable:'' Synthetic regulatory elements and networks engineered in cells would be controllable with external stimulus in a deterministic fashion. | |
- | + | <li>''Synthetic whole genome:'' Starting with synthetic oligonucleotides as raw materials, the end product would be an artificially assembled genome or “minimal genome”. In order to distinguish between synthetic biological creations and other approaches like transgenic organisms, the key difference to be noted is that transgenic organisms are the result of introducing naturally occurring foreign or mutated DNA (genes) into the organism. | |
- | + | <li>''Risks involved in synthetic biology practices'' | |
Some of the risks posed by products of synthetic biology are outlined below. As we move up the classification hierarchy of synthetic biology products, and thus on to higher levels of integration, the risks increase. | Some of the risks posed by products of synthetic biology are outlined below. As we move up the classification hierarchy of synthetic biology products, and thus on to higher levels of integration, the risks increase. | ||
- | + | <li>''Risk of negative environmental impact:'' | |
This includes scenarios in which a synthetically created micro-organism designed for a particular task (e.g.: Environmental cleanup) could have a side effect of interacting with another environmental substance and impact the overall environment negatively. | This includes scenarios in which a synthetically created micro-organism designed for a particular task (e.g.: Environmental cleanup) could have a side effect of interacting with another environmental substance and impact the overall environment negatively. | ||
- | + | <li>'' Risk of natural genome pool contamination:'' Any genetic exchange between a synthetic biological entity and a naturally occurring biological entity would result in natural genome contamination. This is similar to the problem of “gene-flow” in the context of transgenic plants. | |
- | + | <li>''Run-off risk (“Grey-goo” problem):'' This is similar to the problem often discussed in the context of nanotechnology. Synthetic biology products released into the environment to accomplish a specific task should have a controlled lifespan outside the lab. If this in not the case, one can envision unintended consequences of a system run amuck. | |
- | + | <li>''Risk of creation of deadly pathogens for the purposes of bio-terrorism:'' The creation of the complete genome of Polio virus in the lab shows the potential of synthetic biology to engineer harmful pathogens. This technology, in rogue hands, could be used to engineer the genomes of deadly pathogens. The fact that the synthetic Polio virus was proven to be infectious shows the deadly potential of this technology. | |
</p> | </p> | ||
+ | </ul> | ||
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Revision as of 16:14, 21 October 2009