New technology to study DNA in archived tissue samples

Researchers at IGP have identified a combination of two types of immune cells that characterise certain cancer forms. This combination can be used to provide disease prognosis and predict treatment response to immunotherapy. The findings are presented in a new study in the journal eBioMedicine.

Researchers at IGP have discovered a new cell subtype in the lymphatic vessels that interacts with immune cells in lymphatic malformations. This newly discovered interplay between the immune system and the lymphatic system could be used to treat diseases with lymphatic malformations.

Researchers at IGP have identified a protein involved in regulating leakage from blood vessel. Its role in controlling cell–cell contacts, challenges prior knowledge and opens up new avenues for future therapeutic development in diseases involving vessel leakage and tissue swelling.

Men are at an increased risk of a severe bout of COVID-19 compared to women. Researchers at IGP have now shown that this may be due to loss of the Y chromosome in part of their white blood cells. The findings could eventually be used to assess the risk of developing severe COVID-19 and perhaps to improve treatment.

The malignant brain tumour type medulloblastoma can become resistant to therapy which can cause relapse. Researchers at IGP have discovered a certain protein that among other things makes tumour cells resting and insensitive to radiation treatment. The research group hopes that the results could eventually lead to better treatments for children that have the highest risk to develop relapses.

Single periods of sun exposure or radiation therapy to the skin likely pose a minimal risk of skin cancer. This is suggested in a study from IGP where the researchers have shown that pigment-producing cells in the skin can skin can tolerate long-term exposure of genetic injuries by changing between different degrees of maturity.

Researcher at IGP have developed a new tool that enables the visualisation where drugs bind to human proteins. The highly sensitive technique can be used in searches for compounds with specificity for particular target proteins. It could be used in drug discovery processes or to establish the suitability of a given drug regime before therapy selection.

Using state of the art techniques, researchers from Uppsala University have shown that the metabolism in patients with type 2 diabetes and prediabetes was much more disturbed than previously known, and that it varied between organs and with the severity of the disease. The study, which is a collaboration with Copenhagen University and AstraZeneca, among others, has been published in the journal Cell Reports Medicine.

In a large international study, researchers at IGP have identified DNA regions that are associated with physical activity or leisure screen time. The findings confirm that physical activity is beneficial for health and suggest that a more sedentary lifestyle can be due to how the muscles respond to exercise.

Blood coagulation and blood clot formation are relevant for the disease cerebral cavernoma, CCM. Therefore, antithrombotic therapy may be beneficial for cavernoma patients. This is shown in a new study from IGP.

Loss of the Y chromosome in blood cells of men is associated with disease and mortality, but no clear causal relationship has previously been identified. Now, researchers from IGP show in an international study in the journal Science that loss of the Y chromosome in white blood cells causes development of fibrosis in the heart, impaired heart function and death from cardiovascular diseases in men.

Researchers at IGP have developed a new method to detect proteins with high specificity and sensitivity that could be use in future diagnostic analyses of patient samples.

A new study from IGP show that oral contraceptives and also hormone replacement therapy at menopause increase the risk of stroke. The increased risk was largest during the first year of treatment, after which it declined. The study, which is now published in the journal Stroke, is based on data from more than a quarter of a million women from the database UK Biobank.

Although some rare variants can significantly increase the risk of disease for a few individuals, the majority of the genetic contribution to common diseases is due to a combination of many common genetic variants with small effects. This is shown by researchers at IGP and other departments at Uppsala University in a new comprehensive study published in the journal Nature Communications.

Researchers at IGP have detected different subgroups of the brain tumour form glioblastoma, where the cancer cells’ properties depend on which cell type they originate from. The used analysis method could also separate glioblastoma patients with significant differences in survival. The findings open up for identifying specific therapeutic targets for the new subgroups of glioblastoma.

Immunotherapy is increasingly becoming a successful way to treat cancer. Researchers at IGP have now developed armed CAR-T cells that reinforce the immune defence against cancer and that could increase the possibilities to successfully treat solid tumours. The study has been published in the journal Nature BioMedical Engineering.

In the condition known as cavernoma, lesions arise in a cluster of blood vessels in the brain, spinal cord or retina. Researchers at IGP now show in a new study that white blood cells and protein structures associated with the immune response infiltrate the vessel lesions. The findings support that inflammation has a role in the development of cavernoma and indicate a potential biomarker for the disease.  

In recent years, great advances have been made in the development of new, successful immunotherapies to treat cancer. Two types of targeted immunotherapies that have revolutionised areas of cancer care are CAR T-cell therapy and antibody treatments. However, there are still significant challenges in the identification of cancer cell surface proteins that function as targets for immunotherapies. Mattias Belting, professor at Lund University and senior consultant at Skåne University Hospital, and guest professor at IGP, is well on the way and his group’s findings are now published in the journal PNAS.

CRISPR-Cas9, the “genetic scissors”, creates new potential for curing diseases; but treatments must be reliable. In a new study, researchers have discovered that the method can give rise to unforeseen changes in DNA that can be inherited by the next generation. These scientists therefore urge caution and meticulous validation before using CRISPR-Cas9 for medical purposes.

Researchers at IGP have developed a technology that allows studies of DNA profiles in archived tissue samples. The technology permits investigators to better understand regulation of gene activity in cancer and precision medicine.

In the blood cancer type acute myeloid leukemia, it is common that patients relapse some time after treatment. Researchers from IGP have in a new study identified genes that seem to be associated with the risk of relapse. The findings may form the basis for new treatment strategies and contribute to better survival for patients with acute myeloid leukemia.