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Cell Specific Gene Expression01:58

Cell Specific Gene Expression

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...
Cis-regulatory Sequences02:02

Cis-regulatory Sequences

Cis-regulatory sequences are short fragments of non-coding DNA that are present on the same chromosomes as the genes that they regulate. These fragments serve as binding sites for transcriptional regulators, proteins that are responsible for controlling gene transcription and differential gene expression across cell types in eukaryotes. Cis-regulatory sequences can be close to the gene of interest or thousands of bases away in the DNA sequence; however, those sequences that are further away are...
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DNA Microarrays

Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...
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RNA-seq

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. 
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Experimental RNAi

RNA interference (RNAi) is a cellular mechanism that inhibits gene expression by suppressing its transcription or activating the RNA degradation process. The mechanism was discovered by Andrew Fire and Craig Mello in 1998 in plants. Today, it is observed in almost all eukaryotes, including protozoa, flies, nematodes, insects, parasites, and mammals. This precise cellular mechanism of gene silencing has been developed into a technique that provides an efficient way to identify and determine the...
Cell Specific Gene Expression01:58

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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...

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Updated: May 9, 2026

Multiplexed Analysis of Retinal Gene Expression and Chromatin Accessibility Using scRNA-Seq and scATAC-Seq
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DeepCE: un marco de aprendizaje profundo para la inferencia de la red reguladora de genes mejorada por correlación en

Qianqian Wu1, Xingmiao Dai1, Shiyi Lou1

  • 1School of Mathematics, Hefei University of Technology, Hefei, Anhui 230009, China.

Bioinformatics advances
|February 20, 2026
PubMed
Resumen

Desarrollamos DeepCE, un marco de aprendizaje profundo para inferir redes reguladoras de genes (GRNs). DeepCE mejora la precisión y fiabilidad en la comprensión de la dinámica de la expresión génica y la heterogeneidad celular.

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Área de la Ciencia:

  • Biología computacional Biología computacional.
  • La genómica es la genómica.
  • La bioinformática es la bioinformática.

Sus antecedentes:

  • La secuenciación de ARN de una sola célula (scRNA-seq) revela la dinámica de la expresión génica y la heterogeneidad celular.
  • El aprendizaje profundo (DL) es prometedor para inferir la regulación genética, pero tiene problemas con mecanismos complejos.
  • Se necesitan nuevos algoritmos para mejorar la eficacia y fiabilidad de la inferencia de la red de regulación génica (GRN).

Objetivo del estudio:

  • Introducir DeepCE, un nuevo marco DL diseñado para la inferencia GRN mejorada por correlación.
  • Mejorar la precisión y la robustez de la inferencia GRN mediante la integración de técnicas avanzadas de DL.

Principales métodos:

  • DeepCE integra unidades recurrentes con puertas bidireccionales (GRU) con redes neuronales convolucionales (CNN).
  • Las GRU bidireccionales capturan las dependencias temporales dinámicas en los datos de expresión génica.
  • Las CNN analizan patrones espaciales locales dentro de los datos de scRNA-seq para descubrir complejas interacciones gen-gen.

Principales resultados:

  • DeepCE mejora la extracción de la regulación dinámica de genes.
  • El marco suaviza los datos ruidosos de expresión génica, extrae señales regulatorias con retraso en el tiempo y filtra correlaciones espurias.
  • Los experimentos con ratones y conjuntos de datos humanos muestran que DeepCE supera a los métodos existentes, logrando puntuaciones superiores en AUROC y AUPR.

Conclusiones:

  • DeepCE proporciona un marco poderoso y confiable para la inferencia GRN de alta calidad.
  • El método propuesto avanza en la comprensión de los mecanismos de regulación génica a partir de datos de una sola célula.
  • DeepCE ofrece una mayor precisión y robustez en comparación con los enfoques actuales de vanguardia.