Affifi Ramsey
University of Edinburgh, Edinburgh, UK.
Biosemiotics. 2016;9(3):345-364. doi: 10.1007/s12304-016-9274-3. Epub 2016 Oct 15.
Genetic interventions, which include transgenic engineering, gene editing, and other forms of genome modification aimed at altering the information "in" the genetic code, are rapidly increasing in power and scale. Biosemiotics offers unique tools for understanding the nature, risks, scope, and prospects of such technologies, though few in the community have turned their attention specifically in this direction. Bruni (2003, 2008) is an important exception. In this paper, I examine how we frame the concept of "side effects" that result from genetic interventions and how the concept stands up to current perspectives of the role of organism activity in development. I propose that once the role of living systems in constructing and modifying the informational value of their various developmental resources is taken into account, the concept of a "side effect" will need to be significantly revised. Far from merely a disturbance brought about in a senseless albeit complex system, a biosemiotic view would take "side effects" as at least sometimes the organism's active re-organization in order to accommodate or make use of novelty. This insight is nascent in the work of developmental plasticity and niche construction theory (West-Eberhard 2003; Odling-Smee et al. 2003), but it is brought into sharper focus by the explicitly interpretive perspective offered by biosemiotics. Understanding the "side effects" of genetic interventions depends in part on being able to articulate when and where unexpected consequences are a result of semiotic activity at various levels within the system. While a semiotic interpretation of "side effects" puts into question the naive attitude that would see all unintended side effects as indications of disturbance in system functionality, it certainly does not imply that such side effects are of no concern for the viability of the organisms in the system. As we shall see, the fact that such interventions do not respect the translation of information that occurs in multi-level biological systems ensures that disruption is still likely. But it does unprivilege the human agent as the sole generator of meaning and information in the products of biotechnology, with important consequences on how we understand our relationship with other species.
基因干预包括转基因工程、基因编辑以及其他旨在改变遗传密码中“内部”信息的基因组修饰形式,其力量和规模正在迅速增长。生物符号学为理解此类技术的性质、风险、范围和前景提供了独特的工具,尽管该领域中很少有人将注意力具体转向这个方向。布鲁尼(2003年、2008年)是一个重要的例外。在本文中,我探讨了我们如何构建由基因干预产生的“副作用”概念,以及这个概念如何经得起当前关于生物体活动在发育中作用的观点的检验。我提出,一旦考虑到生命系统在构建和修改其各种发育资源的信息价值方面的作用,“副作用”的概念将需要大幅修订。生物符号学观点认为,“副作用”远非仅仅是在一个虽复杂但无意义的系统中产生的干扰,它至少有时是生物体为了适应或利用新事物而进行的积极重组。这种见解在发育可塑性和生态位构建理论的研究中已初见端倪(韦斯特 - 埃伯哈德,2003年;奥德林 - 斯米等人,2003年),但生物符号学所提供的明确解释性视角使其更加清晰。理解基因干预的“副作用”部分取决于能够阐明何时何地意外后果是系统内不同层面符号活动的结果。虽然对“副作用”的符号学解释质疑了那种将所有意外副作用都视为系统功能紊乱迹象的天真态度,但这当然并不意味着此类副作用对系统中生物体的生存能力无关紧要。正如我们将看到的,此类干预不尊重在多层次生物系统中发生的信息转换这一事实确保了干扰仍然可能发生。但它不再将人类主体视为生物技术产品中意义和信息的唯一创造者,这对我们理解与其他物种的关系产生了重要影响。