Le monde
de l'infiniment petit

Changes in the Human Gut Microbiota Associated With Colonization by Blastocystis sp. and Entamoeba spp. in Non-Industrialized Populations

    08/06/2021   À  10h

Les travaux de Magali Chabé, du CIIL, suggèrent fortement que Blastocystis et Entamoeba agissent probablement par des mécanismes différents pour interagir avec le microbiote bactérien intestinal. La présence d'eucaryotes intestinaux tels que Blastocystis doit être prise en compte lors de l'étude de l'interaction des amibes Entamoeba spp. avec le microbiote bactérien intestinal.

Human gut microbial communities are mainly composed of bacteria, but also include fungi, viruses, archaea, and protozoa, whose role in the gut ecosystem has only recently begun to be recognized. For example, humans colonized by Blastocystis (a gut protozoan with controversial pathogenicity) host a more diverse bacterial microbiota than individuals not carrying it, suggesting that its presence may be beneficial for the host. In parallel, the presence of non-pathogenic Entamoeba spp. has been associated with an increased diversity and compositional shifts in the bacterial microbiota of healthy rural individuals in Cameroon. However, Entamoeba and Blastocystis, the two most prevalent human gut protozoa, have never been studied in the same individuals, preventing the study of their interaction.

Voir plus : ICI