About
The Bacterial infections: antimicrobial therapies group is a junior group under IBEC’s Tenure Track scheme.
Infectious diseases constitute a tenacious and major public health problem all over the world. The emergence and increasing prevalence of bacterial strains that are resistant to available antibiotics demand the discovery of new therapeutic approaches.
Biofilms are bacterial communities that grow embedded within a protective matrix produced by themselves.
Also, chronic infections caused by bacteria growing in biofilms, are enormously complicated to treat. It increases their fitness and survival, thus complicating treatment and diagnosis because they persist despite the action of antibiotic therapies and adaptive immune responses.
Over 60% of all human infections are characterized by the formation of a biofilm, which is involved in a wide variety of pathological conditions by either growing over human tissues (Cystic Fibrosis, Chronic Obstructive Pulmonary Disease, chronic wound, etc.) or by developing on the surfaces of medical devices (e.g. endotracheal tubes, intravenous and urinary catheters, etc.).
Our lab aims to investigate new antimicrobial therapies and strategies to combat bacterial infections with different objectives:
- The use of nanomedicine techniques for the development of novel and specific nanoparticles to deliver existing antibiotics or new identify antimicrobial drugs, significantly when the bacteria are growing in biofilm, close to the physiological conditions of the disease and where the current chemotherapy fails;
- The identification and screening of new molecules for the highly selective inhibition of new antibacterial targets (e.g. ribonucleotide reductases);
- The use of nanomedicine techniques for the development of novel and specific nanoparticles to deliver existing antibiotics or new identify antimicrobial drugs, significantly when the bacteria are growing in biofilm, close to the physiological conditions of the disease and where the current chemotherapy fails;
- To study new methodologies to treat chronic bacterial infections in patients suffering cystic fibrosis;
- To develop a new family of antibacterial vaccines;
- The development of new strategies for bacterial coculture systems;
- To study and develop models for wound healing infections and the search of novel treatments;
- The use of lab-on-a-chip technology to deeply elucidate mechanisms to combat bacterial forming biofilm as well as new approaches to identify multiresistant bacteria to different antibiotics.
- To establish the molecular basis for the regulation of genes involved in DNA synthesis (ribonucleotide reductase genes), their importance in virulence and biofilm formation;
We believe these projects will be beneficial to society since we explore the use of different bioengineering approaches to elucidate ways to diagnose and eradicate multi-drug resistant bacteria.
Related links:
Staff
ibecbarcelona.euFormer Members
Maria del Mar Cendra | PhD Student
Projects
| NATIONAL PROJECTS | FINANCER | PI |
|---|---|---|
| InfectTreat · Understanding DNA metabolism and new insights in polymicrobial biofilms: development of more efficient therapies to tackle bacterial infections (2022 – 2025) | MICIU. Generación Conocimiento proyectos I+D | Eduard Torrents |
| DISnanoAMR · Desarrollo de nuevas estrategias para hacer frente a la resistencia antibiótica (2022 – 2025) | MICIU. Poryectos de I+D+i en líneas estratégicas | Eduard Torrents |
| IVD-Biofilm · Desarrollo de un nuevo dispositivo para el diagnóstico personalizado en infecciones relacionadas con biopelículas (2022 – 2024) | MICIU. Proyectos Pruebas de Concepto | Eduard Torrents |
| Acuerdo de colaboración ente el IBEC y la Asociación Catalana de Fibrosis Quística (2019 – 2024) | Asociación Catalana de Fibrosis Quística | Eduard Torrents |
| Las biopelículas polimicrobianas para el desarrollo de terapias más eficientes contra las infecciones bacterianas” (2021-2022) | Diputació de Barcelona | Eduard Torrents |
| combatRNR · Comprender la síntesis del ADN en patógenos bacterianos: nuevas estrategias para el tratamiento de enfermedades infecciosas (2019 – 2022) | MICIU. Retos investigación: Proyectos I+D | Eduard Torrents |
| BIOVAC · Artificial bacteria: a novel generation of bioinspired vaccines (2020 – 2023) | BIST. BIST Ignite Program | Eduard Torrents |
| Las biopelículas polimicrobianas para el desarrollo de terapias más eficientes contra las infecciones bacterianas” (2021-2022) | Diputació de Barcelona | Eduard Torrents |
| FINISHED PROJECTS | FINANCER | PI |
|---|---|---|
| Terapias alternativas para el tratamiento de las infecciones bacterianas crónicas en pacientes con fibrosis quística a (2019-2021) | Asociación Catalana de Fibrosis Quística | Eduard Torrents |
| Noves estratègies antimicrobianes per combatre la fibrosi quística (2016-2020) | Obra Social La Caixa | Eduard Torrents |
| BiofilmChip CaixaImpulse BiofilmChip (2018 – 2020) | Obra Social La Caixa | Eduard Torrents |
| Desarrollo de una nueva familia de compuestos antimicrobianos | Asociación Catalana de Fibrosis Quística | Eduard Torrents |
| Identificación y administración de nuevas moléculas antimicrobianas contra Pseudomonas aeruginosa creciendo en biofilm | Asociación Española Fibrosis Quística, Becas de Investigación “Pablo Motos” | Eduard Torrents |
| Novel strategies to combat bacterial chronic infections by the development of microfluidics platforms to analyse and treat bacterial growing in biofilms (2016) | Obra Social La Caixa | Eduard Torrents |
| Redes reguladoras de la expresión génica de las distintas ribonucleotidil reductasas en bacterias | MINECO, I+D-Investigación fundamental no orientada | Eduard Torrents |
| BACTSHOT Novel antimicrobial therapy (2016-2017) | EIT Health Head Start – Proof of Concept | Eduard Torrents |
| inhibitRNR Las ribonucleotido reductasas como una nueva diana terapéutica frente a patógenos bacterianos (2016-2018) | MINECO, Retos investigación: Proyectos I+D | Eduard Torrents |
| Ribonucleotide reductasas: una nueva diana terapéutica contra organismos patógenos en enfermos de fibrosis quística (2010-2017) | Asociación Española Fibrosis Quística, Becas de Investigación “Pablo Motos” | Eduard Torrents |
| RNRbiotic New strategy to combat bacterial infections (2015-2017) | Obra Social La Caixa, Caixaimpulse | Eduard Torrents |
Publications
(See full publication list in ORCID)
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Equipment
- Zeiss LSM 800 Confocal Laser Scanning Microscope
- Nikon Inverted Fluorescent microscope ECLIPSE Ti-S/L100
- Cell culture facilities for microbial infections
- Characterization of nanoparticles/biomaterial antibacterial activity
- Drosophila melanogaster and Galleria mellonella as a model host for bacterial infections
- Continuous flow system model for bacterial biofilm development
- Single Channel Fiber-Optic Oxygen Meter with microsensor
- Molecular biology, biochemistry and protein purification facilities
- Bacterial expression systems for heterologous protein production
Collaborations
- Prof. Fernando Albericio
Institut de Recerca Biomèdica (IRB), Barcelona, Spain - Dr. Elisabeth Engel
IBEC - Dr. Esther Julián
Dept. de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Spain - Dr. Joan Gavaldà
Infectious diseases, Vall d’Hebrón Hospital and Research Institute, Barcelona, Spain - Prof. Víctor Puntes
Inorganic nanoparticles group, Institut Català de Nanociència i Nanotecnología, Barcelona, Spain - Prof. Josep Samitier
IBEC - Prof. Santiago Vazquez
Laboratori de química farmacèutica, Pharmacy Faculty, Barcelona University - Prof. Gabriel Gomila
IBEC - Prof. Vladimir Arion
Department of Inorganic Chemistry, University of Vienna, Austria - Dr. Maria Teresa Martin-Gomez
Division of Respiratory Bacteriology and Clinical Mycology. Microbiology Department. Vall d’Hebrón Hospital, Spain
News
Pseudomonas aeruginosa biofilms and their partners in crime
A comprehensive review led by IBEC researchers from the “Bacterial infections: antimicrobial therapies” group highlights the clinical relevance of the bacterium Pseudomonas aeruginosa and its presence in bacterial biofilms.
An alternative to mice for toxicity testing
Eduard Torrents and his team present an alternative to experimentation with mice. The research proposes the use of waxworms to evaluate the toxicity of nanoparticles, which is also cheaper and more ethical. These insects allow us to model their possible nanotoxicity in a living organism.
IBEC researchers propose a cheaper and more ethical model for toxicological studies
A new study by IBEC’s Bacterial Infections: Antimicrobial Therapies and Molecular and cellular neurobiotechnology groups shows that Galleria mellonella larvae can be effective to test the toxicity of nanoparticles. This work thus paves the way toward a new animal model for toxicity studies that represent an inexpensive and more ethical alternative to rodent testing.
Eduard Torrents talks about antibiotic resistance on the radio
Eduard Torrents, group leader at IBEC is interviewed in the radio program “Després del Col·lapse” of RTVE talking about his research on new therapies for infectious diseases in the face of antibiotic resistance.
Nanoparticles against “maxibacteria”
Eduard Torrents, leader of the group “Bacterial infections: antimicrobial therapies” at IBEC, is interviewed in the ALMA magazine to explain how his group is fighting against the bacteria that causes cystic fibrosis.
Researchers identify a mechanism that explains the recurrence of many lung infections
A team of researchers from the Institute for Bioengineering of Catalonia (IBEC) has discovered that strains of the bacterium Pseudomonas aeruginosa isolated from patients are more persistent than laboratory strains and propose a molecular mechanism to explain intracellular survival. The study, published in the journal Virulence, finds that the class II ribonucleotide reductase enzyme (RNR) plays a key role in frequent lung infections, for example, those that occur in patients with cystic fibrosis.
Researchers at IBEC provide new insights on how to treat chronic infections
Researchers at Institute for Bioengineering of Catalonia (IBEC) have managed to recreate the coculture conditions and environmental requisites that would allow the simultaneous and stable growth of Pseudomonas aeruginosa and Staphylococcus aureus, two major pathogens commonly found growing together in intricate biofilms in disease-affected lungs or wounds. Most chronic infections occur due to the inherent capacity of some bacterial pathogens to grow in biofilms. Biofilm-associated infections, which have become a critical worldwide threat, have historically been treated as single-species events.
Researchers at IBEC track how pathogens adapt to oxygen changes
The Bacterial Infections: Antimicrobial Therapies group at IBEC, led by Eduard Torrents, has developed a system capable of investigating how pathogens adapt to oxygen changes. Using this technique, they have discovered that bacteria E. coli and Pseudomonas aeruginosa can adapt to environmental changes through different mechanisms, which opens the door to better knowledge and treatment of infections.
The BioVac project led by IBEC and ICN2 awarded at the BIST Ignite Awards 2020
BioVac, a project led jointly by the Institute for Bioengineering of Catalonia (IBEC) and the Catalan Institute of Nanoscience and Nanotechnology (ICN2) has been awarded the BIST Ignite Awards 2020. The aim of this collaboration is to populate nanoparticles with antigens to create a new generation of vaccines against untreatable infections and multi-resistant bacteria. The award ceremony of the BIST Ignite Awards 2020 will be held on March 11 at the Auditorium of La Pedrera.
The directing board of the “Asociación Catalana de Fibrosis Quística” visits IBEC
Representatives of the board of directors of the Catalan Association of Cystic Fibrosis (ACFQ) recently visited IBEC laboratories to discuss the latest advances in bacterial resistance with Dr. Eduard Torrents, principal investigator at IBEC of the group of Bacterial infections: Antimicrobial therapies . Eduard Torrents, with the support of the ACFQ since 2009, is investigating different antimicrobial strategies to eradicate infections associated with this disease. As on previous occasions, he showed his laboratory to the representatives of the association and shared with them the latest advances in the different lines he is currently developing. “Working with the patient association made me change the way I was doing my research, I want to find solutions,” he said. On their behalf, the “Associació Catalana de Fibrosi Quística”, that since his foundation at 1988 backs the assistencial and researcher work, devotes a large part of its financial resources to achieve progress in treatment and research, providing different improvements to different research groups .