相关实验视频
Updated: Jun 13, 2025

12:17
Detection and Isolation of Apoptotic Bodies to High Purity
Published on: August 12, 2018
10.6K
准确地识别了利用融合特征和机器学习方法对亡的正负调节
Cheng-Yan Wu1, Zhi-Xue Xu1, Nan Li1
1Key Laboratory of Magnetism and Magnetic Materials at Universities of Inner Mongolia Autonomous Region, Baotou Teacher's College, Baotou 014010, China.
Computational biology and chemistry
|September 12, 2024
概括
这项研究引入了一种机器学习模型,以识别调节细胞亡 (编程细胞死亡) 的蛋白质. 该模型准确地区分积极和消极调节剂,在细胞死亡研究中推进计算方法.
科学领域:
- 生物化学 生物化学
- 计算生物学 计算生物学
- 遗传学 遗传学 是一个
背景情况:
- 细胞亡蛋白质对于维持细胞平衡和平衡生殖和死亡来维持细胞平衡至关重要.
- 了解亡调节对于各种生物过程至关重要.
- 准确的计算识别细胞亡调节器是具有挑战性的.
研究的目的:
- 开发一种机器学习模型,用于识别正和负的细胞亡调节蛋白.
- 通过计算分析增强对亡调节机制的理解.
主要方法:
- 构建一个对亡相关蛋白质的基准数据集.
- 开发一个将支持矢量机 (SVM) 与多特征融合 (PseCKSAAP,CTD,DDE,PSSM组合) 集成的分类器.
- 使用差异分析 (ANOVA) 进行特征选择,以优化预测.
主要成果:
- 该模型在独立数据上实现了0.781的精度和0.837的AUROC.
- 多特征融合证明了对亡调节作用的有效识别.
- 优化的功能增强了预测性能.
结论:
- 拟议的机器学习模型提供了一个强大的计算工具,用于识别亡调节者.
- 这项工作有助于更好地了解亡调节机制.
- 该模型的性能突显了生物数据分析中多特征融合的有效性.
相关概念视频
The Intrinsic Apoptotic Pathway
6.4K
Internal cellular stress, such as cellular injury or hypoxia, triggers intrinsic apoptosis. The B-cell lymphoma 2 (Bcl-2) family of proteins are the primary regulators of the intrinsic apoptotic pathway. For example, during DNA damage, checkpoint proteins, such as Ataxia Telangiectasia Mutated (ATM protein) and Checkpoints Factor-2 (Chk2) proteins, are activated. These proteins phosphorylate p53 which further activates pro-apoptotic proteins, such as Bax, Bak, PUMA, and Noxa, and inhibits...
6.4K
The Extrinsic Apoptotic Pathway
6.3K
The extrinsic apoptotic pathway is initiated when extracellular death-inducing signals, such as specific cytokines, activate the death receptors expressed on the cell surface. The immune cells involved in this pathway are natural killer cells (NK cells) and cytotoxic T-lymphocytes. NK cells are critical in innate immune response, while cytotoxic T-lymphocytes are associated with adaptive immune response. These cells recognize specific receptors expressed on the altered cells and activate...
6.3K
Phagocytosis of Apoptotic Cells
3.7K
Cells undergoing apoptosis form apoptotic bodies that must be removed immediately to prevent inflammation, autoimmune diseases, and necrosis. Phagocytosis is carried out by professional phagocytes such as macrophages or immature dendritic cells. Non-professional phagocytes such as epithelial cells and fibroblasts also take part in this process; however, they are not as effective as professional phagocytes.
Normal cells contain receptors that prevent them from being recognized...
Normal cells contain receptors that prevent them from being recognized...
3.7K
Combination Therapies and Personalized Medicine
4.9K
Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
4.9K
Regulation of the Unfolded Protein Response
2.4K
Inositol-requiring kinase one or IRE1 is the most conserved eukaryotic unfolded protein response (UPR) receptor. It is a type I transmembrane protein kinase receptor with a distinctive site-specific RNase activity. As the binding mechanics of the misfolded proteins with the N-terminal domain of IRE-1 are unclear, three binding models — direct, indirect, and allosteric -- are proposed for receptor activation. Nevertheless, it is known that once a misfolded protein associates with IRE1, it...
2.4K
Caspases
12.4K
Caspase, a family of cysteine proteases, serve as effectors in apoptosis. The ced3 gene in C.elegans was first identified to be involved in apoptosis. This gene encodes the ced-3 caspase that is similar to the interleukin-1-beta converting enzyme or ICE in mammals. In addition to apoptosis, caspases also function in the inflammatory response. Inflammatory caspases are essential in activating pro-inflammatory cytokines that recruit immune cells and block the replication of pathogens inside...
12.4K

