細胞特異的な因果ネットワークエントロピーを用いた複雑な生物学的システムにおける臨界状態の識別
Jiayuan Zhong1, Ziyi Huang2, Jianqiang Qiu1
1School of Mathematics, Foshan University, Foshan 528000, China.
Research (Washington, D.C.)
|August 28, 2025
まとめ
細胞特異的因果ネットワークエントロピー (CCNE) という 新しい方法を開発し 単細胞データを用いて 生物学的システムの 臨界状態を特定しました CCNEは重要な移行の早期警告信号を効果的に検出し,複雑な生物学的プロセスへの洞察を提供します.
科学分野:
- 複雑な生物系
- システム生物学
- 計算生物学
背景:
- 複雑な生物システムは 安定した状態の間の突然の質的変化によって特徴づけられる 重要な移行を経験することが多い.
- 生物学的メカニズムを理解するために これらの臨界状態とそのシグナル分子を特定することが重要です
- 伝統的な方法は,高次元で騒々しい単細胞データで 臨界状態の早期警告に苦労します
研究 の 目的:
- 単細胞レベルで複雑な生物学的過程の臨界状態を特定するための新しい定量的な方法を提案する.
- 生物学的システムにおける重要な移行の早期発見と特徴づけを可能にする.
- モデルのない高次元単細胞データ分析における既存の方法の限界に対処する.
主な方法:
- 細胞特異的因果ネットワークエントロピー (CCNE) を開発し,新しい量的な方法である.
- 推論された細胞特異的因果ネットワークと定量化されたダイナミック因果変化.
- 数値シミュレーションと5つの異なる現実の単細胞データセットを使用してCCNEを検証しました.
主要な成果:
- CCNEは危機的な状態と危機的な移行の早期警告信号を正確に特定します.
- CCNEは,重要な移行信号を検出する現行の方法よりも優れています.
- CCNEは,細胞の異質性およびクラスタリングの時間的な変化を分析するための計算ツールとして機能します.
結論:
- CCNEは,単細胞データを用いて複雑な生物学的過程の臨界状態を特定するための効果的な方法です.
- CCNEスコアは,ダイナミックな因果的な変化と細胞の異質性についての貴重な洞察を提供します.
- CCNEの信頼性は,機能的濃縮とシグナル分子の経路分析によって支持されています.
関連する概念動画
Protein Networks
4.1K
An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
4.1K
Entropy within the Cell
11.4K
A living cell's primary tasks of obtaining, transforming, and using energy to do work may seem simple. However, the second law of thermodynamics explains why these tasks are harder than they appear. None of the energy transfers in the universe are completely efficient. In every energy transfer, some amount of energy is lost in a form that is unusable. In most cases, this form is heat energy. Thermodynamically, heat energy is defined as the energy transferred from one system to another that...
11.4K
Non-equilibrium in the Cell
4.8K
An important concept in studying metabolism and energy is that of chemical equilibrium. Most chemical reactions are reversible. They can proceed in both directions, releasing energy into their environment in one direction, and absorbing it from the environment in the other direction. The same is true for the chemical reactions involved in cell metabolism, such as the breaking down and building up of proteins into and from individual amino acids, respectively. Reactants within a closed system...
4.8K
Entropy Change in Reversible Processes
2.7K
In the Carnot engine, which achieves the maximum efficiency between two reservoirs of fixed temperatures, the total change in entropy is zero. The observation can be generalized by considering any reversible cyclic process consisting of many Carnot cycles. Thus, it can be stated that the total entropy change of any ideal reversible cycle is zero.
The statement can be further generalized to prove that entropy is a state function. Take a cyclic process between any two points on a p-V diagram.
The statement can be further generalized to prove that entropy is a state function. Take a cyclic process between any two points on a p-V diagram.
2.7K
The Significance of Membrane Transport
29.4K
The transport of solutes across the cell membrane is essential for metabolic processes, like maintaining cell size and volume, generating the action potential, exchanging nutrients and gases, etc. Membrane transport can be either passive or active. It can be simple diffusion, facilitated, or mediated transport aided by transport proteins such as transporters and channels.
Transporters facilitate either an active or passive movement of solutes. They can allow a single-molecule transport down its...
Transporters facilitate either an active or passive movement of solutes. They can allow a single-molecule transport down its...
29.4K


