Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Vesicular Tubular Clusters01:45

Vesicular Tubular Clusters

2.6K
After budding out from the ER membrane, some COPII vesicles lose their coat and fuse with one another to form larger vesicles and interconnected tubules called vesicular tubular clusters or VTCs. These clusters constitute a compartment at the ER-Golgi interface known as ERGIC (Endoplasmic Reticulum Golgi Intermediate Compartment). The ERGIC is a mobile membrane-bound cargo transport system that sorts proteins secreted from ER and delivers them to the Golgi.
With the help of motor proteins such...
2.6K
Cell Migration01:19

Cell Migration

5.1K
Cell migration is a process by which the cells move from one location to another, playing an essential role in embryological development, repair and regeneration, immune response, and metastasis. Cells migrate in response to chemical or mechanical signals generated by specific organs or tissues. The overall mechanism includes three steps - polarization, protrusion, and release. Polarization involves the formation of a distinct cell front and rear, which determines the direction of movement.
5.1K
Cell Diversity01:13

Cell Diversity

3.8K
The concept of a cell started with microscopic observations of dead cork tissue by Robert Hooke in 1665. Hooke coined the term "cell" based on the resemblance of the small subdivisions in the cork to the rooms that monks inhabited, called cells. About ten years later, Antonie van Leeuwenhoek became the first person to observe the living and moving cells under a microscope. In the century that followed, the theory that cells represented the basic unit of life developed.
Multicellular...
3.8K
Cell Specific Gene Expression01:58

Cell Specific Gene Expression

13.9K
Multicellular organisms contain a variety of structurally and functionally distinct cell types, but the DNA in all the cells originated from the same parent cells. The differences in the cells can be attributed to the differential gene expression. Liver cells, whose functions include detoxification of blood, production of bile to metabolize fats, and synthesis of proteins essential for metabolism, must express a specific set of genes to perform their functions. Gene expression also varies with...
13.9K
Chemotaxis and Direction of Cell Migration01:21

Chemotaxis and Direction of Cell Migration

3.5K
Cells can detect chemical cues in their environment and reorganize the cytoskeleton to migrate toward them or away from them. This directional migration, called chemotaxis, is essential during embryogenesis and development, immune response, tissue repair and regeneration, and reproduction. These chemical cues can either attract or repel the cell's movement. For example, axon development is determined by a combination of chemoattractants and chemorepellents that direct the growing axon...
3.5K
Cluster Sampling Method01:20

Cluster Sampling Method

12.7K
Appropriate sampling methods ensure that samples are drawn without bias and accurately represent the population. Because measuring the entire population in a study is not practical, researchers use samples to represent the population of interest.
To choose a cluster sample, divide the population into clusters (groups) and then randomly select some of the clusters. All the members from these clusters are in the cluster sample. For example, if you randomly sample four departments from your...
12.7K

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Reduced HAV IgG Seropositivity Among Unvaccinated People Living with HIV: The Weak Shield.

Tropical medicine and infectious disease·2026
Same author

Immunosuppression, resistance burden, and qSOFA on short-term prognosis and difficult clearance in hospitalized patients with Salmonella infection: a single-center retrospective cohort study.

BMC infectious diseases·2026
Same author

LAIOR: a hyperbolic neural ODE variational framework for interpretable single-cell manifold learning and trajectory inference.

Frontiers in genetics·2026
Same author

Global and Coalition Cognition Graph Modeling for Interpretable Multiagent Reinforcement Learning.

IEEE transactions on cybernetics·2026
Same author

Chitosan-Tannic Acid-Encapsulated Polydopamine Nanocontainers for pH-Responsive Self-Healing Waterborne Epoxy Coatings.

Langmuir : the ACS journal of surfaces and colloids·2026
Same author

The prognostic value of different HPV infection statuses in cervical cancer.

Scientific reports·2026
Same journal

Honghe Bunya-like virus: a novel virus identified in mosquitoes from Yunnan, China.

BMC genomics·2026
Same journal

A single-cell transcriptomic atlas of the pigtail macaque placenta in late gestation.

BMC genomics·2026
Same journal

Structural characteristics of the Phoebe hui chloroplast genome and phylogenetic analyses of Phoebe plants.

BMC genomics·2026
Same journal

Genomic distribution characteristics and interspecific differences of microsatellite landscapes in Felidae.

BMC genomics·2026
Same journal

Identification of IMP-8-carrying Comamonas thiooxydans strains from a diarrheal sample: genomic insights into plasmid-borne carbapenemase in an environmental bacterium.

BMC genomics·2026
Same journal

ProbeST: a custom probe design pipeline for dual host-pathogen Spatial Transcriptomics.

BMC genomics·2026
Ver todos los artículos relacionados

Video Experimental Relacionado

Updated: Sep 10, 2025

Fabrication of a Multiplexed Artificial Cellular MicroEnvironment Array
07:19

Fabrication of a Multiplexed Artificial Cellular MicroEnvironment Array

Published on: September 7, 2018

8.6K

GNODEVAE: un ODE-VAE basado en gráficos mejora el agrupamiento de datos de una sola célula

Zeyu Fu1, Chunlin Chen2, Song Wang3

  • 1State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University, Chongqing, 400038, China. fuzeyu99@126.com.

BMC genomics
|August 21, 2025
PubMed
Resumen
Este resumen es generado por máquina.

GNODEVAE, un nuevo marco computacional, mejora el análisis de una sola célula mediante la integración de redes de atención de gráficos, ecuaciones diferenciales ordinarias neuronales y autocodificadores variacionales. Aborda efectivamente los desafíos en dimensionalidad, escasez y dinámica celular para mejorar la minería de datos.

Palabras clave:
El agrupamientoRedes de atención gráficaEcuación diferencial ordinaria neuronalSecuencia de las señalesSequencia de ADNCodificadores automáticos de variación

Más Videos Relacionados

Visualization and Quantification of High-Dimensional Cytometry Data using Cytofast and the Upstream Clustering Methods FlowSOM and Cytosplore
06:01

Visualization and Quantification of High-Dimensional Cytometry Data using Cytofast and the Upstream Clustering Methods FlowSOM and Cytosplore

Published on: December 12, 2019

8.6K
Characterization of Aquatic Biofilms with Flow Cytometry
08:30

Characterization of Aquatic Biofilms with Flow Cytometry

Published on: June 6, 2018

9.2K

Videos de Experimentos Relacionados

Last Updated: Sep 10, 2025

Fabrication of a Multiplexed Artificial Cellular MicroEnvironment Array
07:19

Fabrication of a Multiplexed Artificial Cellular MicroEnvironment Array

Published on: September 7, 2018

8.6K
Visualization and Quantification of High-Dimensional Cytometry Data using Cytofast and the Upstream Clustering Methods FlowSOM and Cytosplore
06:01

Visualization and Quantification of High-Dimensional Cytometry Data using Cytofast and the Upstream Clustering Methods FlowSOM and Cytosplore

Published on: December 12, 2019

8.6K
Characterization of Aquatic Biofilms with Flow Cytometry
08:30

Characterization of Aquatic Biofilms with Flow Cytometry

Published on: June 6, 2018

9.2K

Área de la Ciencia:

  • Biología computacional
  • La genómica
  • La bioinformática

Sus antecedentes:

  • El análisis de secuenciación de ARN de una sola célula (scRNA-seq) se ve desafiado por la alta dimensionalidad, la escasez y las relaciones celulares complejas.
  • Los métodos existentes a menudo no logran preservar la estructura global, modelar la dinámica celular y manejar el ruido técnico de manera efectiva.

Objetivo del estudio:

  • Desarrollar un nuevo marco computacional para el análisis integral de una sola célula.
  • Para mejorar el agrupamiento celular, la reducción de dimensionalidad y el análisis de la trayectoria del pseudotiempo en los datos scRNA-seq y scATAC-seq.

Principales métodos:

  • Se introdujo GNODEVAE, una nueva arquitectura que integra las redes de atención de gráficos (GAT), las ecuaciones diferenciales ordinarias neuronales (NODE) y los autocodificadores variacionales (VAE).
  • Se evaluó el rendimiento de GAT en 10 capas convolucionales de gráficos, lo que demuestra su superioridad.
  • Se comparó sistemáticamente GNODEVAE con 18 métodos existentes en 50 conjuntos de datos de una sola célula.

Principales resultados:

  • GNODEVAE superó sistemáticamente las principales categorías de métodos de referencia, incluidas las técnicas de reducción de dimensionalidad, las variantes VAE y los modelos basados en gráficos.
  • Logró ventajas significativas en la calidad de agrupación de reconstrucción (ARI) y la calidad de la geometría de agrupación (ASW) sobre el VGAE estándar y todos los métodos de referencia.
  • Se ha demostrado un rendimiento superior en la agrupación dinámica de genes en comparación con Diffusion map y Palantir.

Conclusiones:

  • GNODEVAE proporciona un marco computacional robusto que combina la conciencia de vecindad, el modelado dinámico y la expresividad probabilística para el análisis multiómico de una sola célula.
  • Su rendimiento superior consistente en diversos conjuntos de datos destaca su versatilidad para la minería de datos scRNA-seq y scATAC-seq.
  • Establece un nuevo estándar para el agrupamiento celular, la reducción de dimensionalidad y el análisis de pseudotiempo.