Revealing the Metabolic Alterations during Biofilm Development of Burkholderia cenocepacia Based on Genome-Scale Metabolic Modeling
Artikel i vetenskaplig tidskrift, 2021

Burkholderia cenocepacia is among the important pathogens isolated from cystic fibrosis (CF) patients. It has attracted considerable attention because of its capacity to evade host immune defenses during chronic infection. Advances in systems biology methodologies have led to the emergence of methods that integrate experimental transcriptomics data and genome-scale metabolic models (GEMs). Here, we integrated transcriptomics data of bacterial cells grown on exponential and biofilm conditions into a manually curated GEM of B. cenocepacia. We observed substantial differences in pathway response to different growth conditions and alternative pathway susceptibility to extracellular nutrient availability. For instance, we found that blockage of the reactions was vital through the lipid biosynthesis pathways in the exponential phase and the absence of microenvironmental lysine and tryptophan are essential for survival. During biofilm development, bacteria mostly had conserved lipid metabolism but altered pathway activities associated with several amino acids and pentose phosphate pathways. Furthermore, conversion of serine to pyruvate and 2,5-dioxopentanoate synthesis are also identified as potential targets for metabolic remodeling during biofilm development. Altogether, our integrative systems biology analysis revealed the interactions between the bacteria and its microenvironment and enabled the discovery of antimicrobial targets for biofilm-related diseases.

omics integration

Burkholderia cenocepacia

genome-scale metabolic models

synthetic lethality




Ozlem Altay

Kungliga Tekniska Högskolan (KTH)

King Saud bin Abdulaziz University for Health Sciences

Cheng Zhang

Zhengzhou University

Hasan Turkez

Atatürk Üniversitesi

Jens B Nielsen

Chalmers, Biologi och bioteknik, Systembiologi

Mathias Uhlen

Kungliga Tekniska Högskolan (KTH)

Adil Mardinoglu

Chalmers, Biologi och bioteknik, Systembiologi


2218-1989 (ISSN) 22181989 (eISSN)

Vol. 11 4 221



Medicinsk bioteknologi (med inriktning mot cellbiologi (inklusive stamcellsbiologi), molekylärbiologi, mikrobiologi, biokemi eller biofarmaci)

Mikrobiologi inom det medicinska området





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