Video Experimental Relacionado
Updated: May 31, 2026
07:18
Investigating Intestinal Barrier Breakdown in Living Organoids
Published on: March 26, 2020
La homeostasis intestinal y su descomposición en la enfermedad inflamatoria intestinal
1Sir William Dunn School of Pathology, University of Oxford, South Parks Road, Oxford OX1 3RE, UK. kevin.maloy@path.ox.ac.uk
Nature
|June 17, 2011
Resumen
El mantenimiento de la homeostasis intestinal depende de la microbiota intestinal, el epitelio y el sistema inmunológico. Las interrupciones pueden conducir a enfermedades inflamatorias intestinales, lo que pone de relieve los desafíos para el desarrollo de nuevos tratamientos.
Área de la Ciencia:
- Gastroenterología e Inmunología.
- Investigación del microbioma Investigación del microbioma.
- Interacciones huésped-patógeno.
Sus antecedentes:
- La homeostasis intestinal es crucial para la salud intestinal, ya que implica un intercambio intrincado entre la microbiota, el epitelio intestinal y el sistema inmunológico del huésped.
- La desregulación de estas interacciones puede conducir a condiciones inflamatorias crónicas como la enfermedad inflamatoria intestinal (EII).
- Las vías inmunes que impulsan la inflamación intestinal se conservan a través de las células inmunes y son reguladas por las células huésped.
Objetivo del estudio:
- Para resumir el entendimiento actual de los factores que rigen la homeostasis intestinal.
- Para resaltar los mecanismos subyacentes a la transición de la homeostasis a la inflamación en el intestino.
- Para identificar futuras dianas terapéuticas para la enfermedad inflamatoria intestinal.
Principales métodos:
- Revisión de la literatura actual sobre la homeostasis intestinal y la inflamación.
- Análisis de módulos efectores inmunes en leucocitos innatos y adaptativos.
- Examen de los mecanismos reguladores que involucran a las células reguladoras del huésped.
Principales resultados:
- La homeostasis intestinal se mantiene mediante una compleja interacción de microbiota, epitelio e inmunidad.
- La ruptura de las vías reguladoras precipita la patología inflamatoria característica de la EII.
- Los módulos efectores inmunes que impulsan la inflamación se conservan y están sujetos al control de la célula huésped.
Conclusiones:
- El equilibrio entre la homeostasis intestinal y la inflamación es delicado e influenciado por múltiples factores.
- Comprender estos factores es fundamental para desarrollar nuevas estrategias terapéuticas para la EII.
- La investigación futura debe centrarse en la identificación y modulación de estos factores para restaurar la salud intestinal.
Videos de Conceptos Relacionados
01:25Inflammatory Bowel Disease III: Crohn's Disease
Crohn’s disease is a chronic, relapsing form of inflammatory bowel disease characterized by segmental, transmural inflammation that can affect any part of the gastrointestinal tract. Its pathogenesis arises from a combination of genetic susceptibility, environmental exposures, epithelial barrier dysfunction, and immune dysregulation. Together, these factors lead to an exaggerated immune response against components of the gut microbiome.Genetic and Environmental InfluencesMultiple genetic...
01:20Inflammatory Bowel Disease II: Ulcerative Colitis
Ulcerative colitis is a chronic inflammatory disorder of the colon characterized by continuous mucosal inflammation that typically begins in the rectum and extends proximally in a uniform pattern. Its pathogenesis involves a complex interplay of genetic predisposition, immune dysregulation, and environmental influences. These factors converge to impair the colon’s epithelial defenses and promote an exaggerated inflammatory response against luminal contents.Breakdown of the Mucosal BarrierA...
01:18Dysbiosis of the Gut Microbiota
The human gut microbiome includes a diverse array of microbial species, including beneficial commensals and opportunistic pathogens, which interact to support host health. These microbes contribute to essential functions such as nutrient metabolism, immune system modulation, and maintenance of intestinal barrier integrity. However, disruptions to this equilibrium—referred to as dysbiosis—can have widespread physiological consequences.Dysbiosis is often characterized by reduced microbial...
01:30Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy
Various diagnostic tests are employed in the diagnostic process for Inflammatory Bowel Disease (IBD), particularly to differentiate between Crohn's disease and ulcerative colitis.
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the colonic...
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the colonic...
01:26Inflammatory Bowel Disease I: Introduction
Inflammatory bowel disease is a group of chronic disorders marked by recurrent inflammation of the gastrointestinal tract due to an abnormal immune response against gut microflora. This leads to tissue damage. The two main forms are Crohn’s disease and ulcerative colitis.Crohn’s DiseaseCrohn’s disease is a relapsing inflammatory disorder that can affect any part of the GI tract, from the mouth to the anus. It involves all layers of the bowel wall (transmural) and shows “skip lesions” in which...
01:27Inflammatory Bowel Disease I: Ulcerative Colitis
Introduction
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...