Publications de Nichole Broderick

Microbiota-Induced Changes in Drosophila melanogaster Host Gene Expression and Gut Morphology

To elucidate mechanisms underlying the complex relationships between a host and its microbiota, we used the genetically tractable model Drosophila melanogaster. Consistent with previous studies, the microbiota was simple in composition and diversity. Howev ...

American Society for Microbiology2014

Functional Analysis of PGRP-LA in Drosophila Immunity

Bruno Lemaitre, Juan Camilo Paredes Escobar, Nichole Broderick

PeptidoGlycan Recognition Proteins (PGRPs) are key regulators of the insect innate antibacterial response. Even if they have been intensively studied, some of them have yet unknown functions. Here, we present a functional analysis of PGRP-LA, an as yet unc ...

Public Library of Science2013

Gut homeostasis in a microbial world: insights from Drosophila melanogaster

Bruno Lemaitre, Nichole Broderick

Intestinal homeostasis is achieved, in part, by the integration of a complex set of mechanisms that eliminate pathogens and tolerate the indigenous microbiota. Drosophila melanogaster feeds on microorganism-enriched matter and therefore has developed effic ...

Nature Publishing Group2013

Gut-associated microbes of Drosophila melanogaster

Bruno Lemaitre, Nichole Broderick

There is growing interest in using Drosophila melanogaster to elucidate mechanisms that underlie the complex relationships between a host and its microbiota. In addition to the many genetic resources and tools Drosophila provides, its associated microbiota ...

2012

Drosophila EGFR pathway coordinates stem cell proliferation and gut remodeling following infection

Bruno Lemaitre, Nichole Broderick, Takayuki Kuraishi

BACKGROUND: Gut homeostasis is central to whole organism health, and its disruption is associated with a broad range of pathologies. Following damage, complex physiological events are required in the gut to maintain proper homeostasis. Previously, we demon ...

BioMed Central2010

Invasive and indigenous microbiota impact intestinal stem cell activity through multiple pathways in Drosophila

Bruno Lemaitre, Nichole Broderick, Sveta Chakrabarti

Gut homeostasis is controlled by both immune and developmental mechanisms, and its disruption can lead to inflammatory disorders or cancerous lesions of the intestine. While the impact of bacteria on the mucosal immune system is beginning to be precisely u ...

2009

Drosophila intestinal response to bacterial infection: activation of host defense and stem cell proliferation

Bruno Lemaitre, Nichole Broderick

Although Drosophila systemic immunity is extensively studied, little is known about the fly's intestine-specific responses to bacterial infection. Global gene expression analysis of Drosophila intestinal tissue to oral infection with the Gram-negative bact ...

2009