分子から生命がどのように生まれうるかの解明(How Life Could Arise from Molecules)

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2026-05-05 ゲーテ大学

独フランクフルト大学の研究チームは、生命誕生の起源に関する新たな理論モデルを提案し、単純な分子集合から自己組織化を経て生命的システムが形成される可能性を示した。研究では、化学反応ネットワークと熱力学的条件の相互作用に着目し、分子同士がエネルギーを消費しながら安定した反応サイクルを形成する過程を解析した。その結果、特定条件下では分子群が自律的に秩序を生み出し、代謝に類似した振る舞いを示すことが分かった。これは、生命誕生に必須とされてきた高度な生体分子が存在しなくても、単純な化学系から生命の前駆体が自然発生し得る可能性を支持する成果である。研究チームは、この知見が生命起源研究だけでなく、人工生命や複雑系科学、宇宙生物学の理解にも寄与するとしている。

<関連情報>

人文科学から生命科学まで、複雑性と創発現象の理解における化学の役割 The Role of Chemistry Across Disciplines From Humanities to Life Sciences in Understanding Complexity and Emergence

Harald Schwalbe, Josef Wachtveitl, Alexander Heckel, Florian Buhr, Sabrina Toews, Thomas M. Schimmer
Angewandte Chemie International Edition  Published: 06 March 2026
DOI:https://doi.org/10.1002/anie.202523427

ABSTRACT

A group of researchers from the humanities, economics, social sciences, natural and life science developed a definition of the topics complexity and emergence that can be applied across disciplines. Here, concepts of complexity and emergence in chemistry and biochemistry are discussed, to promote a discourse between the natural and life sciences and philosophy. Although chemical research often employs reductionist strategies, the properties of molecules and their linked functions exhibit emergent properties that cannot be inferred solely from their atomic constituents. Assembly theory and the work of Manfred Eigen offer ways to quantify and predict emergence in chemistry, particularly in relation to the origins and evolution of life. This review emphasizes the chemical prerequisites for life, such as the formation of natural products, the emergence of nucleic acids that carry information, and the functional roles of proteins. From a philosophical standpoint, modern ontology provides a means of understanding reality that is both process-based and subject-independent. By integrating chemistry, biology and philosophy, the synopsis of this review addresses the predictive, post facto and historically unique aspects of complex systems, offering a conceptual framework for comprehending the emergence of molecular function and the evolution of living systems.

Graphical Abstract

This study explores the origins of life by linking prebiotic chemistry, the emergence of information-carrying molecules such as RNA and proteins, and philosophical questions about consciousness. The study emphasizes the role of molecular evolution in the Central Dogma and provides insights into the chemical origins of biology and the basis of life’s informational flow.

分子から生命がどのように生まれうるかの解明(How Life Could Arise from Molecules)

生物化学工学
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