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Pulmonary Tuberculosis I01:29

Pulmonary Tuberculosis I

Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Pulmonary Tuberculosis II01:28

Pulmonary Tuberculosis II

Tuberculosis, or TB, is a bacterial infectious disease caused by Mycobacterium tuberculosis. While its primary impact is on the lungs, leading to pulmonary tuberculosis, it can also affect various other organs, a condition referred to as extrapulmonary tuberculosis.
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
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Tuberculosis (TB) is a contagious infection primarily affecting the lung parenchyma but which can also affect other body parts. TB can be classified based on disease development, presentation, and the affected anatomical site.
The first classification is based on the development of the disease, and it includes the following categories:
Pulmonary Tuberculosis IV01:26

Pulmonary Tuberculosis IV

Tuberculosis, more commonly referred to as TB, is an infectious disease stemming from Mycobacterium tuberculosis. While it primarily impacts the lungs, TB can also affect other body areas. Given its severity and global impact, timely and accurate diagnosis is crucial for controlling its spread and improving patient outcomes.
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
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Medical management of tuberculosis (TB) patients involves a comprehensive approach that includes diagnosis, treatment, and monitoring. The specific strategies can vary depending on the type of tuberculosis (latent or active), the patient's overall health status, and other considerations.
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MultiSAAl: Predicción de la interacción anticuerpo-antígeno informada por secuencia utilizando aprendizaje profundo a

Zexin Lv1, Dongliang Hou1, Minghua Hou1

  • 1College of Information Engineering, Zhejiang University of Technology, Hangzhou 310023, China.

Journal of chemical information and modeling
|August 28, 2025
PubMed
Resumen
Este resumen es generado por máquina.

MultiSAAI predice con precisión las interacciones anticuerpo-antígeno utilizando datos de secuencia, superando los métodos existentes. Este marco computacional ayuda en el descubrimiento de alto rendimiento de anticuerpos terapéuticos mediante el modelado de mecanismos de unión complejos.

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Área de la Ciencia:

  • La bioquímica
  • Biología computacional
  • Inmunología

Sus antecedentes:

  • La predicción de la interacción anticuerpo-antígeno es crucial para el desarrollo de nuevas terapias, pero a menudo está limitada por los costos experimentales y la incapacidad de los métodos basados en la estructura estática para capturar la unión dinámica.
  • Se necesitan métodos de predicción precisos basados en la secuencia para superar las limitaciones de los enfoques basados en la estructura en el modelado de los cambios conformacionales dinámicos críticos para la unión anticuerpo-antígeno.

Objetivo del estudio:

  • Desarrollar y validar MultiSAAI, un nuevo marco computacional basado en secuencias para predecir las interacciones anticuerpo-antígeno.
  • Modele explícitamente las distintas contribuciones de las cadenas pesadas y ligeras de anticuerpos en la unión de antígenos.
  • Mejorar la precisión y eficiencia del descubrimiento de anticuerpos terapéuticos a través de la predicción computacional avanzada.

Principales métodos:

  • MultiSAAI integra las incrustaciones de modelos de lenguaje, las propiedades fisicoquímicas, las restricciones geométricas y la sustitutibilidad de residuos para caracterizar las interacciones.
  • Se utiliza una arquitectura de red multiscala para evaluar tanto la compatibilidad global de los pares de residuos como la aptitud de los aminoácidos locales en la interfaz de unión.
  • El marco incorpora información específica del sitio y principios vinculantes con base biológica para reflejar los mecanismos de interacción reales.

Principales resultados:

  • MultiSAAI logró una puntuación AUROC de 0,772 en un conjunto de datos genéricos de interacción anticuerpo-antígeno.
  • El modelo demostró un rendimiento superior en un conjunto de datos de SARS-CoV-2, logrando una puntuación AUROC de 0,947.
  • MultiSAAI superó a los métodos establecidos como A2binder y AbAgIntPre en las pruebas de referencia.

Conclusiones:

  • MultiSAAI ofrece un poderoso enfoque basado en secuencias para predecir las interacciones anticuerpo-antígeno, superando los métodos actuales.
  • La capacidad del marco para modelar interacciones dinámicas e incorporar principios biológicos mejora su precisión predictiva.
  • MultiSAAI muestra un potencial significativo para acelerar el descubrimiento de anticuerpos terapéuticos de alto rendimiento.