18/11/2024 - Press release
The p95HER2 protein is found expressed in one third of HER2+ tumors, which represent 4% of all tumors. Led by VHIO investigators, CAR T cells targeting p95HER2 have been engineered to secrete the TECH2Me bispecific antibody. Both therapies specifically and independently recognize tumor cells. In addition, the TECH2Me bispecific antibody activates immune cells within the tumor microenvironment. This dual mechanism of action has demonstrated safety and achieved complete and durable antitumor responses in patient-derived models of HER2+ p95HER2-expressing solid tumors. Published in Nature Communications, results of this VHIO-led study have provided the rationale for the application of a phase 1 first-in-human clinical trial, currently in the approval process, to assess this novel therapeutic strategy in patients with HER2-driven solid tumors.
06/11/2024 - Press release
This study will be conducted in collaboration with the Josep Carreras Leukemia Research Institute, and researchers from Finland, the Netherlands, and the United Kingdom will participate. The goal is to develop and validate protocols and systems for generating laboratory-derived stem cells to regenerate patients' blood. The European Research Council, which provides these grants, is the leading funding organization for advanced and excellent research on the continent. It is an organization created by the European Union.
05/06/2024 - Press release
A scientific team led by Dr Anna Bigas, from the Hospital del Mar Research Institute and the Josep Carreras Institute, has described the role of the IκBα protein in the differentiation process of haematopoietic cells. In the absence of this protein, the stem cells enter quiescence, acquire a dormant state and maintain their potential, which may allow them to be transplanted for therapeutic uses in leukaemia or blood diseases of genetic origin. This is an important step towards being able to generate these types of cells in the lab, preventing them from differentiating and turning into other cells too early.
03/05/2024 - Press release
Natural Killer (NK) cells, when exposed to antibody treatment used against HER2-positive breast cancer, secrete specific types of cytokines that activate the immune response against tumor cells. Researchers have confirmed that patients with NK lymphocytes present in the tumor environment show a better response to treatment, thanks to this mechanism. This confirms the feasibility of using cytokines secreted by NK cells as markers of response to anti-HER2 antibodies with a simple blood test. It also reaffirms various clinical trials using these lymphocytes to bolster treatment in patients with metastatic HER2-positive breast cancer.
A study involving the Hospital del Mar Research Institute, the Vall d'Hebron Institut d'Oncologia, IDIBELL, and the Institut Català d'Oncologia suggests that combining chemotherapy with drugs that can inhibit two cell signaling pathways involved in tumor progression may aid in treatment. The research has analyzed the interaction of the protein IKKα with these pathways, known for their ability to promote the proliferation of tumor cells. This combination has the advantage of reducing treatment toxicity. The study opens the door to new approaches for tumors with the presence of this protein. It is published in the EMBO Journal.
Més informació "A possible new combination of treatments to combat cancer"
21/06/2023 - Press release
The Molecular Mechanisms of Cancer and Stem Cell Research Group of the Hospital del Mar Research Institute is the only center in Spain to participate in an international study that validates the deficiency of a protein, IκBα, as a marker of poor prognosis in this type of tumor The work, published in Cell Reports Medicine, has analyzed data from more than 2,000 patients. In addition, the researchers have identified one of the pathways on which this protein acts, which makes it a possible therapeutic target The Hospital del Mar Research Institute group is already working on a model to search for possible treatments that modulate the function of this marker. It should be considered that at present there are very few therapeutic alternatives for glioma, which has a very high mortality rate
30/03/2023 - Press release
Adding a peptide, a molecule made of several amino acids, to oxaliplatin, a chemotherapy drug used to treat colorectal cancer, avoids the side effects this treatment can have on normal cells, including potential chemotherapy resistance. This is confirmed by an article published in the Journal of Medicinal Chemistry, led by the Hospital del Mar Medical Research Institute and the Institute for Research in Biomedicine (IRB Barcelona). This work is the second part of a recent study that explored how platinum accumulation in normal cells promotes platinum resistance in colorectal cancer cells. This new approach prevents healthy cells surrounding the tumour from accumulating platinum. This avoids the activation of certain genes linked to poor treatment response and tumour progression.
21/02/2023 - Press release
A study led by researchers at the Hospital del Mar Medical Research Institute shows that the oxaliplatin administered in some cases of colorectal cancer accumulates in non-cancerous/healthy cells from the tumor environment. This accumulation causes healthy cells to produce a protein that further activates them, triggering tumor resistance to treatment and assisting in tumor regeneration. The researchers discovered a marker that can identify these tumors unresponsive to chemotherapy. The study, published in the journal Nature Communications, paves the way for new strategies enhancing the effects of chemotherapy on cancer cells while avoiding adverse side effects on non-cancerous cells.
11/01/2023 - Press release
A study led by researchers from the Stem Cell and Cancer Research Group at the Hospital del Mar Medical Research Institute has revealed the key role a protein plays in identifying patients with T-cell acute lymphoblastic leukaemia who will not respond to standard treatment. The study, published in the journal EMBO Molecular Medicine, shows that combining chemotherapy with an inhibitor for this protein helps to eliminate treatment resistance in an animal model. This is a rare disease, which is diagnosed in around a hundred people each year in Spain, mainly paediatric patients.
19/10/2022 - Press release
A multicentre study involving hospitals in Spain and Portugal, led by Hospital del Mar, shows that these patients already receive enough radiation to treat the disease when the breast affected by the tumour is irradiated directly. The study monitored more than 400 women. The results indicate that the five-year survival rate and relapses are practically identical between those who underwent specific treatment targeting the nodes located in the armpits and those who only received breast radiation. The findings of the OPTIMAL study have been published in the journal Radiation Oncology and can now be applied to clinical practice. Thanks to this fact, patients will need less radiotherapy and will suffer fewer treatment-related side effects.
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