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

Diffusion01:12

Diffusion

198.2K
Diffusion is the passive movement of substances down their concentration gradients—requiring no expenditure of cellular energy. Substances, such as molecules or ions, diffuse from an area of high concentration to an area of low concentration in the cytosol or across membranes. Eventually, the concentration will even out, with the substance moving randomly but causing no net change in concentration. Such a state is called dynamic equilibrium, which is essential for maintaining overall...
198.2K
RNA-seq03:21

RNA-seq

10.4K
RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases. 
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
10.4K
Physiological Pharmacokinetic Models: Blood Flow-Limited Versus Diffusion-Limited Models00:57

Physiological Pharmacokinetic Models: Blood Flow-Limited Versus Diffusion-Limited Models

140
Physiological pharmacokinetic models, often called flow-limited or perfusion models, typically assume a swift drug distribution between tissue and venous blood, creating a rapid drug equilibrium. This premise is based on the idea that drug diffusion is extremely fast, and the cell membrane presents no barrier to drug permeation. In this scenario, where no drug binding occurs, the drug concentration in the tissue equals that of the venous blood leaving the tissue. This greatly simplifies the...
140
Regulated mRNA Transport02:22

Regulated mRNA Transport

6.4K
In eukaryotes, transcription and translation are compartmentalized; an mRNA is first synthesized in the nucleus and then selectively transported to the cytoplasm for protein synthesis. Before transport, a pre-mRNA undergoes several steps of post-transcriptional modifications including splicing, 5' capping, and the addition of a poly-adenine tail. Various proteins bind to the pre-mRNA during these modifications. The mRNA transport takes place with the help of multiple proteins playing...
6.4K
Improving Translational Accuracy02:07

Improving Translational Accuracy

11.8K
Base complementarity between the three base pairs of mRNA codon and the tRNA anticodon is not a failsafe mechanism. Inaccuracies can range from a single mismatch to no correct base pairing at all. The free energy difference between the correct and nearly correct base pairs can be as small as 3 kcal/ mol. With complementarity being the only proofreading step, the estimated error frequency would be one wrong amino acid in every 100 amino acids incorporated. However, error frequencies observed in...
11.8K
Protein Diffusion in the Membrane01:24

Protein Diffusion in the Membrane

4.5K
Proteins show rotational as well as lateral diffusion across the membrane. The lateral diffusion of proteins was confirmed through the cell fusion experiment where mouse and human cells were fused, resulting in hybrid cells. When the human and mouse cells fused, the specific membrane proteins on human and mouse cells were marked with the red and green-fluorescent markers, respectively. Initially, the red and green fluorescence was located on the respective hemisphere of the cell. As time...
4.5K

También podría leer

Artículos Relacionados

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

Ordenar por
Same author

IgStrand: A universal residue numbering scheme for the immunoglobulin-fold (Ig-fold) to study Ig-proteomes and Ig-interactomes.

PLoS computational biology·2025
Same author

Novel Native Reversed-Phase Liquid Chromatography (nRPLC)/MS for Antibody-Drug Conjugates (ADCs) Characterization and Drug-Antibody Ratio (DAR) Assessment.

Analytical chemistry·2025
Same author

Unusual traits shape the architecture of the Ig ancestor molecule.

Communications biology·2025
Same author

In vitro reconstitution reveals substrate selectivity of protein S-acyltransferases.

The Journal of biological chemistry·2025
Same author

Towards a structural and functional analysis of the immunoglobulin-fold proteome.

Advances in protein chemistry and structural biology·2024
Same author

The win odds: statistical inference and regression.

Journal of biopharmaceutical statistics·2022
Same journal

SPARSITY-DRIVEN PARALLEL IMAGING CONSISTENCY FOR IMPROVED SELF-SUPERVISED MRI RECONSTRUCTION.

Proceedings. International Conference on Image Processing·2026
Same journal

MULTIMODAL CELL CONTEXT INSTRUCTION TUNING FOR CONDITIONAL DNA REGULATORY SEQUENCE GENERATION WITH LARGE LANGUAGE MODELS.

Proceedings. International Conference on Image Processing·2025
Same journal

LOCALIZING MOMENTS OF ACTIONS IN UNTRIMMED VIDEOS OF INFANTS WITH AUTISM SPECTRUM DISORDER.

Proceedings. International Conference on Image Processing·2025
Same journal

Learning From PU Data Using Disentangled Representations.

Proceedings. International Conference on Image Processing·2025
Same journal

A PHYSICS-GUIDED SMOOTHING METHOD FOR MATERIAL MODELING WITH DIGITAL IMAGE CORRELATION (DIC) MEASUREMENTS.

Proceedings. International Conference on Image Processing·2025
Same journal

ACCURATE REGISTRATION BETWEEN ULTRA-WIDE-FIELD AND NARROW ANGLE RETINA IMAGES WITH 3D EYEBALL SHAPE OPTIMIZATION.

Proceedings. International Conference on Image Processing·2024
Ver todos los artículos relacionados

Video Experimental Relacionado

Updated: Sep 9, 2025

Spatial Profiling of Protein and RNA Expression in Tissue: An Approach to Fine-Tune Virtual Microdissection
09:19

Spatial Profiling of Protein and RNA Expression in Tissue: An Approach to Fine-Tune Virtual Microdissection

Published on: July 6, 2022

5.0K

Un modelo de difusión para la transcripción espacial

Ziheng Duan1, Xi Li1, Zhuoyang Zhang2

  • 1University of California, Irvine.

Proceedings. International Conference on Image Processing
|September 5, 2025
PubMed
Resumen
Este resumen es generado por máquina.

Los datos de transcriptómica espacial a menudo tienen regiones que faltan. DISCO (modelo de difusión para la completación de datos de transcriptómica espacial) reconstruye efectivamente estos datos faltantes utilizando modelos de difusión y redes neuronales de gráficos.

Palabras clave:
Completitud de los datosModelo de difusiónRegión de finalizaciónTranscriptómica espacial y sus aplicaciones

Más Videos Relacionados

Mapping Molecular Diffusion in the Plasma Membrane by Multiple-Target Tracing MTT
12:19

Mapping Molecular Diffusion in the Plasma Membrane by Multiple-Target Tracing MTT

Published on: May 27, 2012

17.4K
Spatially Compact Arrangement of Larval Zebrafish Sections for Spatial Transcriptomic Analysis
07:40

Spatially Compact Arrangement of Larval Zebrafish Sections for Spatial Transcriptomic Analysis

Published on: May 16, 2025

448

Videos de Experimentos Relacionados

Last Updated: Sep 9, 2025

Spatial Profiling of Protein and RNA Expression in Tissue: An Approach to Fine-Tune Virtual Microdissection
09:19

Spatial Profiling of Protein and RNA Expression in Tissue: An Approach to Fine-Tune Virtual Microdissection

Published on: July 6, 2022

5.0K
Mapping Molecular Diffusion in the Plasma Membrane by Multiple-Target Tracing MTT
12:19

Mapping Molecular Diffusion in the Plasma Membrane by Multiple-Target Tracing MTT

Published on: May 27, 2012

17.4K
Spatially Compact Arrangement of Larval Zebrafish Sections for Spatial Transcriptomic Analysis
07:40

Spatially Compact Arrangement of Larval Zebrafish Sections for Spatial Transcriptomic Analysis

Published on: May 16, 2025

448

Área de la Ciencia:

  • Biología molecular
  • La bioinformática
  • La genómica

Sus antecedentes:

  • La transcriptómica espacial proporciona información crucial sobre la organización y la función de los tejidos mediante el análisis de la expresión génica dentro de su contexto espacial.
  • Las limitaciones técnicas en los experimentos de transcriptómica espacial a menudo conducen a brechas sustanciales en los datos, lo que impide un análisis exhaustivo y una interpretación biológica.

Objetivo del estudio:

  • Introducir DISCO (modelo de difusión para la completación de datos de transcriptómica espacial), un nuevo marco diseñado para abordar el desafío de los datos faltantes en la transcriptómica espacial.
  • Mejorar la precisión y la integridad de los conjuntos de datos de transcriptómica espacial para mejorar los análisis posteriores.

Principales métodos:

  • DISCO utiliza un codificador de región basado en una red neuronal gráfica para integrar datos espaciales y de expresión génica de las regiones observadas.
  • El marco incorpora dos módulos de difusión: uno para predecir las posiciones espaciales de las regiones que faltan y otro para generar perfiles de expresión génica.
  • La información de las regiones vecinas se integra durante la inferencia para garantizar una reconstrucción de datos biológicamente coherente y fluida.

Principales resultados:

  • DISCO demuestra una eficacia significativa en la reconstrucción de grandes regiones de datos faltantes en diversos conjuntos de datos de transcriptómica espacial.
  • La validación a través de múltiples plataformas y especies de secuenciación confirma la solidez y la generalización del marco DISCO.
  • El método genera con éxito perfiles de expresión génica biológicamente plausibles y diseños espaciales para áreas no observadas anteriormente.

Conclusiones:

  • DISCO ofrece una poderosa solución para completar los datos que faltan en la transcriptómica espacial, mejorando así la calidad de los datos y permitiendo una visión biológica más profunda.
  • La implementación de código abierto de DISCO permite a los investigadores mejorar sus datos de transcriptómica espacial y avanzar en el campo.
  • Este marco facilita una organización de tejidos y análisis funcionales más precisos al mitigar el impacto de las lagunas de datos.