Human Alveolar and Splenic Macrophage Populations Display a Distinct Transcriptomic Response to Infection With Mycobacterium tuberculosis

ABSTRACT: Mycobacterium tuberculosis (Mtb) infects alveolar macrophages (AMs), causing pulmonary tuberculosis (PTB), the most common form of the disease. Less frequently, Mtb is disseminated to many other organs and tissues, resulting in different extrapulmonary forms of TB. Nevertheless, very few studies have addressed the global mRNA response of human AMs, particularly from humans with the active form of the disease. Strikingly, almost no studies have addressed the response of human extrapulmonary macrophages to Mtb infection. In this pilot study, using microarray technology, we examined the transcriptomic ex vivo response of AMs from PTB patients (AMTBs) and AMs from control subjects (AMCTs) infected with two clinical isolates of Mtb. Furthermore, we also studied the infection response of human splenic macrophages (SMs) to Mtb isolates, as a model for extrapulmonary infection, and compared the transcriptomic response between AMs and SMs. Our results showed a striking difference in global mRNA profiles in response to infection between AMs and SMs, implicating a tissue-specific macrophage response to Mtb.

• Autores: Barrera Robledo, Luis Fernando; Lavalett Oñate, Lelia Leonor; Ortega Jaramillo, Héctor José
• Tipo de recurso: Article of investigation
• Fecha de publicación: 2020
• Institución: Universidad de Antioquia
• Repositorio: Repositorio UdeA
• Idioma: eng
• OAI Identifier: oai:bibliotecadigital.udea.edu.co:10495/42036
• Acceso en línea: https://hdl.handle.net/10495/42036
• Palabra clave: Estudios de Casos y Controles; Case-Control Studies; Perfilación de la Expresión Génica; Gene Expression Profiling; Redes Reguladoras de Genes; Gene Regulatory Networks; Interacciones Microbiota-Huesped; Host Microbial Interactions; Macrófagos Alveolares; Macrophages, Alveolar; Mycobacterium tuberculosis; Proyectos Piloto; Pilot Projects; ARN Mensajero; RNA, Messenger; Transcriptoma; Transcriptome; Tuberculosis Pulmonar; Tuberculosis, Pulmonary; https://id.nlm.nih.gov/mesh/D016022; https://id.nlm.nih.gov/mesh/D020869; https://id.nlm.nih.gov/mesh/D053263; https://id.nlm.nih.gov/mesh/D000076662; https://id.nlm.nih.gov/mesh/D016676; https://id.nlm.nih.gov/mesh/D009169; https://id.nlm.nih.gov/mesh/D010865; https://id.nlm.nih.gov/mesh/D012333; https://id.nlm.nih.gov/mesh/D059467; https://id.nlm.nih.gov/mesh/D014397
• Rights: openAccess
• License: http://creativecommons.org/licenses/by/2.5/co/