使用机器学习模型量化golgi分散和分类
Rutika Sansaria1, Krishanu Dey Das1, Alwin Poulose2
1School of Biology, Indian Institute of Science Education and Research Thiruvananthapuram (IISER TVM), Vithura, Thiruvananthapuram 695551, Kerala, India.
概括
这项研究使用机器学习自动化了Golgi分散量化. 开发的方法准确地分类分散的戈尔吉图像,帮助疾病研究.
科学领域:
- 细胞生物学:研究了真核细胞中戈尔吉装置的结构和功能.
- 生物信息学:将机器学习应用于对生物图像数据的定量分析.
- 遗传学:探索遗传修饰 (CARP1变体) 对戈尔吉形态学的影响.
背景情况:
- 戈尔吉体对于真核细胞中的蛋白质和脂质修饰至关重要.
- 戈尔吉结构的变化,称为戈尔吉分散,与压力,疾病和衰老有关.
- 目前缺乏量化戈尔吉分散的方法,阻碍了疾病研究.
研究的目的:
- 为了自动化从显微镜图像中量化戈尔吉分散.
- 开发机器学习模型,用于分类分散与未分散的戈尔吉图像.
- 为分析与疾病识别相关的戈尔吉结构变化提供工具.
主要方法:
- 收集了表达Galactose-1-phosphate uridylyltransferase (GALT) -绿色光蛋白 (GFP) 的HeLa细胞的共聚焦显微镜图像.
- 实现了自动化图像处理,包括平均值和高斯过器,Otsu值,以及用于戈尔基粒子分析的流域细分.
- 提取图像特征并使用机器学习分类器 (逻辑回归,决策树,随机森林,naive Bayes,KNN,梯度提升) 进行分类任务.
主要成果:
- 通过使用梯度增强分类器,实现了65%的分类准确度,用于区分空向量 (EV) 和CARP1野生类 (CARP1 WT).
- 通过随机森林分类器实现了65%的分类准确度,将空向量 (EV) 与CARP1环突变 (CARP1 RM) 区分开来.
- 证明了Golgi分散的自动定量和基于机器学习的分类的可行性.
结论:
- 开发的自动化量化方法有效地分析了戈尔吉分散.
- 机器学习模型可以准确地分类戈尔吉分散状态,有助于研究相关疾病.
- 这种方法为研究戈尔吉体变化及其影响的研究人员提供了宝贵的工具.
相关概念视频
Transport Across the Golgi
4.3K
While it is unclear how molecules move between adjacent Golgi cisternae, it is apparent that the molecules move from cis- cisterna, the entry face, to the trans- cisterna, the exit face. Experiments initially suggested vesicles that bud from one cisterna and fuse with the next cisterna to transport proteins between the cisternae. This vesicular transport model describes the Golgi apparatus as a relatively static structure with a unique enzyme composition in each cisterna. Molecules are...
4.3K
Golgi Apparatus
91.1K
As they leave the Endoplasmic Reticulum (ER), properly folded and assembled proteins are selectively packaged into vesicles. These vesicles are transported by microtubule-based motor proteins and fuse together to form vesicular tubular clusters, subsequently arriving at the Golgi apparatus, a eukaryotic endomembrane organelle that often has a distinctive ribbon-like appearance.
91.1K
Aggregates Classification
329
Aggregate classification is generally based on its size, petrographic characteristics, weight, and source. Size classification ranges from coarse to fine aggregates, defined by the size of the particles. Coarse aggregates are particles that do not pass through ASTM sieve No. 4, and aggregates that pass through the sieve are fine aggregates.
Petrographic classification groups aggregates based on common mineralogical characteristics. Some of the common mineral groups found in aggregates are...
Petrographic classification groups aggregates based on common mineralogical characteristics. Some of the common mineral groups found in aggregates are...
329
Classification of Neurotransmitters
3.0K
Neurotransmitters play a crucial role in the communication between neurons in the autonomic nervous system. Neurons in the autonomic nervous system can be cholinergic or adrenergic depending on the neurotransmitters synthesized. Cholinergic neurons use acetylcholine as their primary neurotransmitter. This includes all the preganglionic fibers of the sympathetic and pre- and postganglionic fibers of the parasympathetic nervous systems. In addition, neurons of the somatic nervous system also use...
3.0K
Classification of Systems-I
192
Linearity is a system property characterized by a direct input-output relationship, combining homogeneity and additivity.
Homogeneity dictates that if an input x(t) is multiplied by a constant c, the output y(t) is multiplied by the same constant. Mathematically, this is expressed as:
Homogeneity dictates that if an input x(t) is multiplied by a constant c, the output y(t) is multiplied by the same constant. Mathematically, this is expressed as:
192
Golgi Matrix Proteins
2.0K
Golgi matrix proteins are a group of highly dynamic proteins that maintain the stacked structure of Golgi. These proteins adapt to rapid morphological changes of the Golgi during the cell cycle. During cell division, mild proteolysis removes these connections resulting in Golgi unstacking. In The daughter cells, these proteins help reassemble the unstacked Golgi.
One of the first identified Golgi matrix proteins was GM130, a rod-like protein located in the cis-Golgi. Subsequently, many Golgi...
One of the first identified Golgi matrix proteins was GM130, a rod-like protein located in the cis-Golgi. Subsequently, many Golgi...
2.0K


