From cancer to tissue repair, from CNIO to IRB Barcelona
Something that characterises the scientist Manuel Serrano is his interest in working in areas that he has not addressed previously and that lie at the convergence between fields, cancer and aging, cancer and metabolism, or cancer and reprogramming. This boldness has been evident during his time at the helm of the “Tumour Suppressor Group” at the Centro Nacional de Investigaciones Oncológicas (CNIO) since 2003 and now accompanies him to IRB Barcelona, where his research group “Cellular Plasticity and Disease” will be able to “delve into more fields thanks to the multidisciplinary nature of the centre”.
— The main topic that I want to address is tissue repair. When tissue is damaged, the damaged cells—called senescent cells—play a key role, and we want to decipher how they tell the organism what needs repairing and how to do this. We also want to further our understanding of the dynamics of the cells responsible for tissue repair. Little is known about these fields but we have made some progress and can provide a different vision.
— Tissue cells have a highly defined and delimited function. To repair a tissue, they first have to become versatile, that is to say, they have to acquire plasticity. Therefore the first thing they have to do is become non-specialised. In our lab we study how plasticity is acquired when tissue damage occurs. We are interested in this versatile state that allows these cells to repair damage.
The most widely studied and best known example of plasticity is the process of cell reprogramming, which was discovered by John B. Gurdon and Shinya Yamanaka.
— We work under the hypothesis that cell reprogramming is linked to the repair process that takes place in the cell.
— There are many. We are working on diabetes and pulmonary fibrosis. In diabetes, the pancreas lacks cells that produce insulin, and the goal is to get this organ to generate these cells. In the case of pulmonary fibrosis, the lung tissue is very damaged and the damaged cells have not been removed and replaced by healthy ones. By means of drugs, we are attempting to remove the damaged cells and in this way stimulate repair.
— How to induce this plasticity through drugs is still a challenge. We do this with genes but this can’t be done in a patient.
In this regard and in parallel with the setup of the lab at IRB Barcelona, at the beginning of the year I cofounded, together with three colleagues, my first spin-off, which is called Senolytic Therapeutics. Our aim is to take a drug that we have developed and patented to clinical trials. We have already demonstrated that this drug has the capacity to remove senescent cells that build up in damaged mouse tissue.
— My research focus has changed over time but cancer is still there. Chronic damage to tissue is one of the most widely known risk factors for the development of cancer. Defective repair underlies many diseases and I think that this notion is also applicable to cancer. This is why I felt that I have to take a step forward and study cell repair processes.
— The institute has a highly varied scientific environment. There is a wide range of expertise in many diseases and fields, and this is very attractive. Whenever I have visited IRB, apart from being impressed by its level of science, I have appreciated an open and collaborative atmosphere, which is key to driving innovative ideas. Since I expressed my interest in joining the institute, the researchers here have responded most positively. I have an excellent personal relationship with them and without a doubt this is pivotal to ensure a creative working climate.
Also, changing centre and moving into a new city and setting is a way to reprogramme myself, to self-renew. It is a challenge.
— Yes, without a doubt. Because the Government of Catalonia is investing in talent attraction and retention, such as through the ICREA programme. When an investment is made it is necessary that those managing it apply professional and scientific criteria, a combination that ensures that the money is invested in an efficient manner and in such a way as to attract those working outside Catalonia. Catalonia has always adhered to criteria of scientific quality and excellence.
The backing of private foundations such as the Obra Social "la Caixa" is also crucial at a time in which funding from regional, national and European bodies has decreased. The commitment of these foundations to science is truly commendable.
— While at CNIO I matured as a scientist. It allowed my career to take a very important quantitative leap, because it provided me with resources and freedom: "Do what you want". I have been able to be creative, to explore and to delve into topics that I would otherwise not have got into.
— I make every effort to make people feel comfortable, to motivate them, to make them feel appreciated, and to ensure that they can talk freely.
— That they talk and ask questions. I always say to them: “Working in an unknown field is in fact pioneering science. I know as little as you and this is a good sign, it means that we are at the frontier of knowledge. We are going to work in this direction but I am not sure how things are going to go”. Sometimes they propose experiments that in my mind are impossible. I always tell them to go ahead and hope I have not made a mistake and that the experiment works.
— Both. Asking ourselves what the relationship is between cell repair mechanisms and cell reprogramming is a big question. We could be asking ourselves a series of more basic questions based on the results we got yesterday, what happens if we change the dose, the time … You can focus on answering these types of questions, which is also very important and necessary.
— Yes, I am interested in more “exploratory” questions.
(Written by: Llúcia Ribot)
The newspaper El País has published an article on the pros and cons of intermittent fasting. The article refers to two kinds of fasting, namely the 5:2 fast, on which you can eat with no calorie restriction for five days and on the other two days no solids are allowed, and the 18:6 fast, which proposes that all the meals of the day are eaten within 6 hours, while the remaining 18 are devoted to fasting.
La Razón and Info Diabético have each published an article about the work done by Manuel Serrano at IRB Barcelona: "If we eliminate damaged cells, the function of aged tissues is greatly improved, that is, they are rejuvenated," says Serrano, who goes on to point out that "it has been possible to delay and reverse the aging of small mammals, such as mice, with the use of experimental drugs that eliminate damaged cells."
Link to La Razón
TV3's "Telenotícies" programme interviewed Miguel Rovira, a PhD student at IRB Barcelona and the first author of a recent study published in the journal EMBO Molecular Medicine. In this study, the scientists designed a nano-carrier to release drugs into damaged cells.
Link to TV3
