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)
[br]
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
Olive oil offers two powerful weapons in the fight against antibiotic resistance
Researchers from the Institute for Bioengineering of Catalonia and the University of Granada have created two potent antimicrobials from oleanolic acid and maslinic acid, both of which are found in olive oil The study, published in the journal ACS Infectious Diseases, has demonstrated the effect of these derivatives on the bacteria Staphylococcus aureus, one of the main causes of infections in catheters and prostheses. Liquid gold. This is how all Mediterranean cultures have referred to olive oil throughout history. Its captivating flavour, its texture and its role in gastronomy have been some of the qualities that have contributed to this. But olive oil is also a great ally when it comes to health: from antiinflammatory properties to benefits for the cardiovascular system, and even recently discovered antitumor effects. Now, scientists from the Institute for Bioengineering of Catalonia (IBEC) and the University of Granada (UGR) have contributed new insights that increase the already well-known antimicrobial properties of olive oil. To do this, they have synthesised two derivatives with enormous antimicrobial potential from two compounds present in olive oil—oleanolic acid and maslinic acid.
IBEC is a partner in four out of five 2018 BIST Ignite Grants awarded to multidisciplinary research projects
Four projects coordinated by 2 group leaders and 2 researchers from IBEC have been successful in gaining funding through the Barcelona Institute of Science and Technology’s IGNITE call.The BIST Ignite Programme is a mechanism to foster multidisciplinary research among the BIST members. Its goal is to promote new collaboration between its partners, facilitating the exchange of knowledge among different scientific fields and exploring new approaches. The projects that can be eligible for the grants must pursue the exploration of new questions and technological challenges through novel multidisciplinary approaches. The selected projects are granted with 20.000€ each and researchers will have 8 months to develop their projects.
A step forward in using nanoparticles to fight bacterial resistance
The Bacterial Infections: Antimicrobial Therapies group from IBEC, led by Eduard Torrents, has designed a new method that, for the first time, makes it possible to check antimicrobial treatment efficacy in the presence of nanoparticles.This new technique has recently been published in the Journal of Nanobiotechnology.. Antimicrobial resistance is one of the main threats facing global healthcare today. According to data from the WHO, there are an increasing number of infections (pneumonia, tuberculosis, gonorrhoea) that are more difficult to treat given that many antibiotics have lost their effectiveness. The root of this problem lies in the excessive use and misuse of antibiotics, which causes bacteria to become resistant to them. As a result, antibiotics are no longer effective.
Two promising avenues in the fight against antibiotic resistance
IBEC’s Bacterial infections: antimicrobial therapies group have published two papers offering new hope in the urgent search for antimicrobials. “We desperately need antimicrobials,” says Eduard Torrents. “Antibiotic resistance is one of the greatest threats to human health today, and the time is fast approaching when routine procedures will be much more risky.” Not only have some common infections or illnesses become resistant to the antibiotics usually used to treat them, a really pressing medical problem now is the rapid rise of ‘superbugs’ or multidrug-resistant bacteria, which are immune to almost all of the antibiotics that are currently available.
“Ajudes de la Fundació Bancària “La Caixa” a 75 projectes d’investigació”
IBEC group leader Eduard Torrents appeared on TV3’s Telenotícies on Monday night explaining his BiofilmChip project that has been funded with a CaixaImpulse grant.
Five IBEC researchers awarded “la Caixa” grants at ceremony
IBEC researchers were in the limelight today at the awards ceremony for the “la Caixa” fellowships and grants for research and innovation calls. Anna Labernadie and Irene Marco, postdocs in the Integrative Cell and Tissue Dynamics and Biosensors for bioengineering groups respectively, won fellowships under the first Junior Leader “la Caixa” call, which helps excellent researchers of any nationality who wish to continue their research career in Spanish or Portuguese territory. Anna was one of 10 postdocs to win a ‘Retaining’ grant for candidates who are already residing in the countries, and Irene was awarded one of 20 ‘Incoming’ positions for those coming from elsewhere.
Bacteria need vitamins too
IBEC’s Bacterial infections: antimicrobial therapies group has revealed the essential role played by a vitamin in the development of a common bacterial biofilm. This new knowledge could play a part in understanding the spread of these bacteria, which will help towards the better design of targeted antibacterial drugs. P. aeruginosa bacteria cause chronic lung infections in patients with cystic fibrosis or chronic obstructive pulmonary disease (COPD) by forming a mature biofilm – in which cells stick to each other and can grow on many different surfaces – that lets them grow and adapt.
“Nous antibiòtics per a vells coneguts”
Wednesday’s episode of “Càpsules de ciència” on TV3, a series of 20 programmes dedicated to scientists working in biomedicine and biotechnology in Catalonia, featured IBEC’s Eduard Torrents.
A molecular mechanism could explain how bacteria resist antibiotics
IBEC researchers have shown for the first time how bacteria make DNA under stressful conditions, such as drug treatments. This new knowledge could help develop new antibiotics that work, tackling the urgent problem of antibiotic resistance. The Bacterial infections: antimicrobial therapies group led by Dr. Eduard Torrents was studying the bacterial strain Pseudomonas aeruginosa, which can cause severe chronic lung infections in cystic fibrosis (CF) patients, leading to severely impaired lung function, an increased risk of respiratory failure, and death.
Mycobacterium in olive oil for cancer treatment
Researchers at the Autonomous University of Barcelona (UAB) and Institute for Bioengineering of Catalonia (IBEC) have revealed a way to effectively deliver a mycobacterium needed for the treatment of bladder cancer in humans –using a formulation based on olive oil. The researchers have found a way to reduce the natural clumping that occurs when mycobacteria cells, which possess a high content of lipids in their walls, are introduced to the usual aqueous solutions that are used for intravesical instillation in bladder cancer patients. This clumping may interfere with the interaction of the mycobacteria-host cells and negatively influence their antitumor effects.