Dr STEPHAN HEEB's Outputs (33)

The Quorum Sensing Regulated sRNA Lrs1 Is Involved in the Adaptation to Low Iron in Pseudomonas aeruginosa (2025)
Journal Article
Panagiotopoulou, D., Catalán, N. R., Wilcox, M., Halliday, N., Pantalone, P., Lazenby, J., Cámara, M., & Heeb, S. (2025). The Quorum Sensing Regulated sRNA Lrs1 Is Involved in the Adaptation to Low Iron in Pseudomonas aeruginosa. Environmental Microbiology Reports, 17(2), Article e70090. https://doi.org/10.1111/1758-2229.70090

Iron is an essential nutrient for microbial growth. The opportunistic pathogen Pseudomonas aeruginosa can survive under diverse conditions, including iron-depleted environments with the aid of small non-coding RNAs (sRNAs). P. aeruginosa also uses th... Read More about The Quorum Sensing Regulated sRNA Lrs1 Is Involved in the Adaptation to Low Iron in Pseudomonas aeruginosa.

Polymer-Coated Urinary Catheter Reduces Biofilm Formation and Biomineralization: A First-in-Man, Prospective Pilot Study (2024)
Journal Article
Kalenderski, K., Dubern, J.-F., Lewis-Lloyd, C., Jeffery, N., Heeb, S., Irvine, D. J., Sloan, T. J., Birch, B., Andrich, D., Humes, D., Alexander, M. R., & Williams, P. (2024). Polymer-Coated Urinary Catheter Reduces Biofilm Formation and Biomineralization: A First-in-Man, Prospective Pilot Study. Journal of Urology Open PLus, 2(1), Article e00005. https://doi.org/10.1097/JU9.0000000000000097

Purpose: Biofilm formation and biomineralization on urinary catheters may cause severe complications including infection and obstruction. Here, we describe an in vitro evaluation and prospective pilot clinical study of a silicone catheter coated with... Read More about Polymer-Coated Urinary Catheter Reduces Biofilm Formation and Biomineralization: A First-in-Man, Prospective Pilot Study.

Convergence of resistance and evolutionary responses in Escherichia coli and Salmonella enterica co-inhabiting chicken farms in China (2024)
Journal Article
Baker, M., Zhang, X., Maciel-Guerra, A., Babaarslan, K., Dong, Y., Wang, W., Hu, Y., Renney, D., Liu, L., Li, H., Hossain, M., Heeb, S., Tong, Z., Pearcy, N., Zhang, M., Geng, Y., Zhao, L., Hao, Z., Senin, N., Chen, J., …Dottorini, T. (2024). Convergence of resistance and evolutionary responses in Escherichia coli and Salmonella enterica co-inhabiting chicken farms in China. Nature Communications, 15, Article 206. https://doi.org/10.1038/s41467-023-44272-1

Sharing of genetic elements among different pathogens and commensals inhabiting same hosts and environments has significant implications for antimicrobial resistance (AMR), especially in settings with high antimicrobial exposure. We analysed 661 Esch... Read More about Convergence of resistance and evolutionary responses in Escherichia coli and Salmonella enterica co-inhabiting chicken farms in China.

Design, Synthesis, and Evaluation of New 1H-Benzo[d]imidazole Based PqsR Inhibitors as Adjuvant Therapy for Pseudomonas aeruginosa Infections (2024)
Journal Article
Soukarieh, F., Mashabi, A., Richardson, W., Oton, E. V., Romero, M., Dubern, J.-F., Robertson, S. N., Lucanto, S., Markham-Lee, Z., Sou, T., Kukavica-Ibrulj, I., Levesque, R. C., Bergstrom, C. A., Halliday, N., Kellam, B., Emsley, J., Heeb, S., Williams, P., Stocks, M. J., & Cámara, M. (2024). Design, Synthesis, and Evaluation of New 1H-Benzo[d]imidazole Based PqsR Inhibitors as Adjuvant Therapy for Pseudomonas aeruginosa Infections. Journal of Medicinal Chemistry, 67(2), 1008-1023. https://doi.org/10.1021/acs.jmedchem.3c00973

Pseudomonas aeruginosa is one of the top priority pathogens that requires immediate attention according to the World Health Organisation (WHO). Due to the alarming shortage of novel antimicrobials, targeting quorum sensing (QS), a bacterial cell to c... Read More about Design, Synthesis, and Evaluation of New 1H-Benzo[d]imidazole Based PqsR Inhibitors as Adjuvant Therapy for Pseudomonas aeruginosa Infections.

RsaL-driven negative regulation promotes heterogeneity in Pseudomonas aeruginosa quorum sensing (2023)
Journal Article
Mellini, M., Letizia, M., Caruso, L., Guiducci, A., Meneghini, C., Heeb, S., Williams, P., Cámara, M., Visca, P., Imperi, F., Leoni, L., & Rampioni, G. (2023). RsaL-driven negative regulation promotes heterogeneity in Pseudomonas aeruginosa quorum sensing. mBio, 14(6), Article e02039-23. https://doi.org/10.1128/mbio.02039-23

In its canonical interpretation, quorum sensing (QS) allows single cells in a bacterial population to synchronize gene expression and hence perform specific tasks collectively once the quorum cell density is reached. However, growing evidence in diff... Read More about RsaL-driven negative regulation promotes heterogeneity in Pseudomonas aeruginosa quorum sensing.

Alkyl-quinolone-dependent quorum sensing controls prophage-mediated autolysis in Pseudomonas aeruginosa colony biofilms (2023)
Journal Article
Giallonardi, G., Letizia, M., Mellini, M., Frangipani, E., Halliday, N., Heeb, S., Cámara, M., Visca, P., Imperi, F., Leoni, L., Williams, P., & Rampioni, G. (2023). Alkyl-quinolone-dependent quorum sensing controls prophage-mediated autolysis in Pseudomonas aeruginosa colony biofilms. Frontiers in Cellular and Infection Microbiology, 13, Article 1183681. https://doi.org/10.3389/fcimb.2023.1183681

Pseudomonas aeruginosa is a model quorum sensing (QS) pathogen with three interconnected QS circuits that control the production of virulence factors and antibiotic tolerant biofilms. The pqs QS system of P. aeruginosa is responsible for the biosynth... Read More about Alkyl-quinolone-dependent quorum sensing controls prophage-mediated autolysis in Pseudomonas aeruginosa colony biofilms.

ToxR is a c-di-GMP binding protein that modulates surface-associated behaviour in Pseudomonas aeruginosa (2022)
Journal Article
Camara, M., Dubern, J., Romero, M., Mai-Prochnow, A., Messina, M., Trampari, E., Gijzel, H. N.-V., Chan, K.-G., Carabelli, A., Barraud, N., Lazenby, J., Chen, Y., Robertson, S., Malone, J., Williams, P., & Heeb, S. (2022). ToxR is a c-di-GMP binding protein that modulates surface-associated behaviour in Pseudomonas aeruginosa. npj Biofilms and Microbiomes, 8, Article 64. https://doi.org/10.1038/s41522-022-00325-9

Pseudomonas aeruginosa uses multiple protein regulators that work in tandem to control the production of a wide range of virulence factors and facilitate rapid adaptation to diverse environmental conditions. In this opportunistic pathogen, ToxR was k... Read More about ToxR is a c-di-GMP binding protein that modulates surface-associated behaviour in Pseudomonas aeruginosa.

Mushroom-shaped structures formed in Acinetobacter baumannii biofilms grown in a roller bioreactor are associated with quorum sensing–dependent Csu-pilus assembly (2022)
Journal Article
Romero, M., Mayer, C., Heeb, S., Wattanavaekin, K., Cámara, M., Otero, A., & Williams, P. (2022). Mushroom-shaped structures formed in Acinetobacter baumannii biofilms grown in a roller bioreactor are associated with quorum sensing–dependent Csu-pilus assembly. Environmental Microbiology, 24(9), 4329-4339. https://doi.org/10.1111/1462-2920.15985

There is currently a need to develop simple biofilm models that facilitate investigation of the architecture/biology of mature bacterial biofilms in a consistent/standardized manner given their environmental and clinical importance and the need for n... Read More about Mushroom-shaped structures formed in Acinetobacter baumannii biofilms grown in a roller bioreactor are associated with quorum sensing–dependent Csu-pilus assembly.

Actinomadura graeca sp. nov.: A novel producer of the macrocyclic antibiotic zelkovamycin (2021)
Journal Article
Tarantini, F. S., Brunati, M., Taravella, A., Carrano, L., Parenti, F., Hong, K. W., Williams, P., Chan, K. G., Heeb, S., & Chan, W. C. (2021). Actinomadura graeca sp. nov.: A novel producer of the macrocyclic antibiotic zelkovamycin. PLoS ONE, 16(11), Article e0260413. https://doi.org/10.1371/journal.pone.0260413

As part of a screening programme for antibiotic-producing bacteria, a novel Actinomadura species was discovered from a soil sample collected in Santorini, Greece. Preliminary 16S rRNA gene sequence comparisons highlighted Actinomadura macra as the mo... Read More about Actinomadura graeca sp. nov.: A novel producer of the macrocyclic antibiotic zelkovamycin.

Design and Evaluation of New Quinazolin-4(3 H)-one Derived PqsR Antagonists as Quorum Sensing Quenchers in Pseudomonas aeruginosa (2021)
Journal Article
Soukarieh, F., Mashabi, A., Richardson, W., Oton, E. V., Romero, M., Roberston, S. N., Grossman, S., Sou, T., Liu, R., Halliday, N., Kukavica-Ibrulj, I., Levesque, R. C., Bergstrom, C. A. S., Kellam, B., Emsley, J., Heeb, S., Williams, P., Stocks, M. J., & Cámara, M. (2021). Design and Evaluation of New Quinazolin-4(3 H)-one Derived PqsR Antagonists as Quorum Sensing Quenchers in Pseudomonas aeruginosa. ACS Infectious Diseases, 7(9), 2666-2685. https://doi.org/10.1021/acsinfecdis.1c00175

P. aeruginosa (PA) continues to pose a threat to global public health due to its high levels of antimicrobial resistance (AMR). The ongoing AMR crisis has led to an alarming shortage of effective treatments for resistant microbes, and hence there is... Read More about Design and Evaluation of New Quinazolin-4(3 H)-one Derived PqsR Antagonists as Quorum Sensing Quenchers in Pseudomonas aeruginosa.

Disruption of the Pseudomonas aeruginosa Tat system perturbs PQS-dependent quorum sensing and biofilm maturation through lack of the Rieske cytochrome bc1sub-unit (2021)
Journal Article
Soh, E. Y.-C., Smith, F., Gimenez, M. R., Yang, L., Vejborg, R. M., Fletcher, M., Halliday, N., Bleves, S., Heeb, S., Camara, M., Givskov, M., Hardie, K. R., Tolker-Nielsen, T., Ize, B., & Williams, P. (2021). Disruption of the Pseudomonas aeruginosa Tat system perturbs PQS-dependent quorum sensing and biofilm maturation through lack of the Rieske cytochrome bc1sub-unit. PLoS Pathogens, 17(8), Article e1009425. https://doi.org/10.1371/journal.ppat.1009425

Extracellular DNA (eDNA) is a major constituent of the extracellular matrix of Pseudomonas aeruginosa biofilms and its release is regulated via pseudomonas quinolone signal (PQS) dependent quorum sensing (QS). By screening a P. aeruginosa transposon... Read More about Disruption of the Pseudomonas aeruginosa Tat system perturbs PQS-dependent quorum sensing and biofilm maturation through lack of the Rieske cytochrome bc1sub-unit.

Engineering Cupriavidus necator H16 for the autotrophic production of (R)-1,3-butanediol (2021)
Journal Article
Gascoyne, J. L., Bommareddy, R. R., Heeb, S., & Malys, N. (2021). Engineering Cupriavidus necator H16 for the autotrophic production of (R)-1,3-butanediol. Metabolic Engineering, 67, 262-276. https://doi.org/10.1016/j.ymben.2021.06.010

Butanediols are widely used in the synthesis of polymers, specialty chemicals and important chemical intermediates. Optically pure R-form of 1,3-butanediol (1,3-BDO) is required for the synthesis of several industrial compounds and as a key intermedi... Read More about Engineering Cupriavidus necator H16 for the autotrophic production of (R)-1,3-butanediol.

Combining Inducible Lectin Expression and Magnetic Glyconanoparticles for the Selective Isolation of Bacteria from Mixed Populations (2021)
Journal Article
Petch, J. E., Gurnani, P., Yilmaz, G., Mastrotto, F., Alexander, C., Heeb, S., Cámara, M., & Mantovani, G. (2021). Combining Inducible Lectin Expression and Magnetic Glyconanoparticles for the Selective Isolation of Bacteria from Mixed Populations. ACS Applied Materials and Interfaces, 13(16), 19230-19243. https://doi.org/10.1021/acsami.1c00907

The selective isolation of bacteria from mixed populations has been investigated in varied applications ranging from differential pathogen identification in medical diagnostics and food safety to the monitoring of microbial stress dynamics in industr... Read More about Combining Inducible Lectin Expression and Magnetic Glyconanoparticles for the Selective Isolation of Bacteria from Mixed Populations.

Genome-Wide Analysis of Targets for Post-Transcriptional Regulation by Rsm Proteins in Pseudomonas putida (2021)
Journal Article
Huertas-Rosales, Ó., Romero, M., Chan, K. G., Hong, K.-W., Camara, M., Heeb, S., Barrientos-Moreno, L., Molina-Henares, A. M., Travieso, M. L., Ramos, M., & Espinosa-Urgel, M. (2021). Genome-Wide Analysis of Targets for Post-Transcriptional Regulation by Rsm Proteins in Pseudomonas putida. Frontiers in Molecular Biosciences, 8, Article 624061. https://doi.org/10.3389/fmolb.2021.624061

© Copyright © 2021 Huertas-Rosales, Romero, Chan, Hong, Cámara, Heeb, Barrientos-Moreno, Molina-Henares, Travieso, Ramos-González and Espinosa-Urgel. Post-transcriptional regulation is an important step in the control of bacterial gene expression in... Read More about Genome-Wide Analysis of Targets for Post-Transcriptional Regulation by Rsm Proteins in Pseudomonas putida.

Hit Identification of New Potent PqsR Antagonists as Inhibitors of Quorum Sensing in Planktonic and Biofilm Grown Pseudomonas aeruginosa (2020)
Journal Article
Soukarieh, F., Liu, R., Romero, M., Roberston, S. N., Richardson, W., Lucanto, S., Oton, E. V., Qudus, N. R., Mashabi, A., Grossman, S., Ali, S., Sou, T., Kukavica-Ibrulj, I., Levesque, R. C., Bergstrom, C. A., Halliday, N., Mistry, S. N., Emsley, J., Heeb, S., Williams, P., …Stocks, M. J. (2020). Hit Identification of New Potent PqsR Antagonists as Inhibitors of Quorum Sensing in Planktonic and Biofilm Grown Pseudomonas aeruginosa. Frontiers in Chemistry, 8, Article 204. https://doi.org/10.3389/fchem.2020.00204

© Copyright © 2020 Soukarieh, Liu, Romero, Roberston, Richardson, Lucanto, Oton, Qudus, Mashabi, Grossman, Ali, Sou, Kukavica-Ibrulj, Levesque, Bergström, Halliday, Mistry, Emsley, Heeb, Williams, Cámara and Stocks. Current treatments for Pseudomonas... Read More about Hit Identification of New Potent PqsR Antagonists as Inhibitors of Quorum Sensing in Planktonic and Biofilm Grown Pseudomonas aeruginosa.

Differential regulation of the phenazine biosynthetic operons by quorum sensing in Pseudomonas aeruginosa PAO1-N (2018)
Journal Article
Higgins, S., Heeb, S., Rampioni, G., Fletcher, M. P., Williams, P., & Cámara, M. (2018). Differential regulation of the phenazine biosynthetic operons by quorum sensing in Pseudomonas aeruginosa PAO1-N. Frontiers in Cellular and Infection Microbiology, 8, Article 252. https://doi.org/10.3389/fcimb.2018.00252

The Pseudomonas aeruginosa quorum sensing (QS) network plays a key role in the adaptation to environmental changes and the control of virulence factor production in this opportunistic human pathogen. Three interlinked QS systems, namely las, rhl, and... Read More about Differential regulation of the phenazine biosynthetic operons by quorum sensing in Pseudomonas aeruginosa PAO1-N.

Functional identification of the prnABCD operon and its regulation in Serratia plymuthica (2018)
Journal Article
Liu, X., Yu, X., Yang, Y., Heeb, S., Gao, S., Chan, K. G., Cámara, M., & Gao, K. (in press). Functional identification of the prnABCD operon and its regulation in Serratia plymuthica. Applied Microbiology and Biotechnology, https://doi.org/10.1007/s00253-018-8857-0

The antibiotic pyrrolnitrin (PRN) is a tryptophan-derived secondary metabolite that plays an important role in the biocontrol of plant diseases due to its broad-spectrum of antimicrobial activities. The PRN biosynthetic gene cluster remains to be cha... Read More about Functional identification of the prnABCD operon and its regulation in Serratia plymuthica.

2-Tridecanone impacts surface-associated bacterial behaviours and hinders plant-bacteria interactions (2018)
Journal Article
López-Lara, I. M., Nogales, J., Pech-Canul, A., Calatrava-Morales, N., Bernabéu-Roda, L. M., Durán, P., Cuéllar, V., Olivares, J., Alvarez, L., Palenzuela-Bretones, D., Romero, M., Heeb, S., Cámara, M., Geiger, O., & Soto, M. J. (2018). 2-Tridecanone impacts surface-associated bacterial behaviours and hinders plant-bacteria interactions. Environmental Microbiology, 20(6), 2049-2065. https://doi.org/10.1111/1462-2920.14083

Surface motility and biofilm formation are behaviours which enable bacteria to infect their hosts and are controlled by different chemical signals. In the plant symbiotic alpha‐proteobacterium Sinorhizobium meliloti, the lack of long‐chain fatty acyl... Read More about 2-Tridecanone impacts surface-associated bacterial behaviours and hinders plant-bacteria interactions.

In Silico and in Vitro-Guided Identification of Inhibitors of Alkylquinolone-Dependent Quorum Sensing in Pseudomonas aeruginosa (2018)
Journal Article
Soukarieh, F., Vico Oton, E., Dubern, J.-F., Gomes, J., Halliday, N., de Pilar Crespo, M., Ramírez-Prada, J., Insuasty, B., Abonia, R., Quiroga, J., Heeb, S., Williams, P., Stocks, M., & Cámara, M. (2018). In Silico and in Vitro-Guided Identification of Inhibitors of Alkylquinolone-Dependent Quorum Sensing in Pseudomonas aeruginosa. Molecules, 23(2), 1-15. https://doi.org/10.3390/molecules23020257

Pseudomonas aeruginosa is a major opportunistic pathogen in cystic fibrosis, wound and nosocomial infections, posing a serious burden to public health, due to its antibiotic resistance. The P. aeruginosa Pseudomonas Quinolone System (pqs) quorum sens... Read More about In Silico and in Vitro-Guided Identification of Inhibitors of Alkylquinolone-Dependent Quorum Sensing in Pseudomonas aeruginosa.

Genome-wide mapping of the RNA targets of the Pseudomonas aeruginosa riboregulatory protein RsmN (2018)
Journal Article
Romero, M., Silistre, H., Lovelock, L., Wright, V. J., Kok, G.-C., Kar-Wai, H., Williams, P., Cámara, M., & Heeb, S. (2018). Genome-wide mapping of the RNA targets of the Pseudomonas aeruginosa riboregulatory protein RsmN. Nucleic Acids Research, 46(13), 6823-6840. https://doi.org/10.1093/nar/gky324

Pseudomonads typically carry multiple non-identical alleles of the post-transcriptional regulator rsmA. In P. aeruginosa, RsmN is notable in that its structural rearrangement confers distinct and overlapping functions with RsmA. However, little is k... Read More about Genome-wide mapping of the RNA targets of the Pseudomonas aeruginosa riboregulatory protein RsmN.