Schlagwort: cancer
T-cell immune response can control SARS-CoV-2 virus replication in immunocompromised patients
14. Juli 2022
In a case study, scientists of the German Center for Infection Research (DZIF) and the University Medical Center Hamburg-Eppendorf investigated the T-cell response of a cancer patient, who was suffering from prolonged COVID-19. No B cells were detectable in the patient’s peripheral blood, entailing that she had no possibility of forming anti-SARS-CoV-2 antibodies. SARS-CoV-2 virus particles were detectable in the patient for nearly three months after infection with the virus.
Study at University Medicine Halle points to success of immunotherapy in the treatment of advanced stomach cancer
24. Juni 2022
A clinical trial conducted by researchers at University Medicine Halle has shown that the lives of patients with a certain form of stomach cancer can be significantly prolonged when the current standard of care, which uses a combination of antibody therapy and chemotherapy to inhibit cell growth through receptor blockades, is supplemented by immunotherapy with the drug nivolumab.
Precise blood diagnostics improve treatment outcome in non-small cell lung cancer patients
4. Juni 2022
Non-small cell lung carcinoma is a particularly aggressive type of lung cancer. Tumor cells and tumor DNA (ctDNA) in the blood of patients with the disease can be analyzed by means of liquid biopsy throughout the course of the disease. This information is important in order to be able to target the constantly changing tumor. A study from the University of Bayreuth is the first to show that liquid biopsy significantly improves treatment outcomes in many cases and can be cost-effective in the German care system. The scientists present their research results in the Journal of Cancer Research and Clinical Oncology.
New method revolutionizes cancer diagnosis
20. Mai 2022
How does cancer arise? How does cellular composition influence tumor malignancy? These questions are profound and challenging to answer, but are crucial to understand the disease and find the right cure. Now, a German-Danish team led by Professor Matthias Mann has developed a ground-breaking technology called ‘Deep Visual Proteomics’. This method provides researchers and clinicians with a protein read-out to understand cancer at single cell-type resolution. The technology was published in the journal Nature Biotechnology and demonstrates its potential in a first application to cancer cells.
How blood stem cells stay intact for a lifetime
6. Mai 2022
Stem cells in the bone marrow keep replenishing us with blood cells until the day we die. They do this by dividing into a daughter cell that becomes a blood cell, and a second cell that remains a stem cell. But every time a cell divides, mistakes can occur that change the cell’s genome and increase the risk of it becoming a cancer cell.
Study reveals male sex hormones are new targets for cancer immunotherapy
16. April 2022
A study examined the differences in intratumoral immune responses between male and female cancers of non-reproductive origin.
Spatial maps of melanoma
15. April 2022
Melanoma is a somewhat unusual cancer — one that blooms before our very eyes, often on sun-exposed skin, and can quickly become deadly as it turns our own skin against us and spreads to other organs. Fortunately, when caught early, melanoma can often be cured by simple surgery, and there are now better treatments for advanced cases, including immunotherapies that prime a patient’s immune system to fight off the cancer. However, much remains unknown about melanoma, including the details of how it develops in the earliest stages, and how to best identify and treat the most dangerous early cases. Spatial maps of melanoma reveal how individual cells interact as cancer progresses.
Key characteristics of immune cells in ovarian cancer
15. April 2022
Researchers want to improve their understanding of the immune environment in ovarian cancer in hopes of making immunotherapy an option for these patients. Researchers now report on key characteristics of immune cells in ovarian cancer and identify cell types important for mediating an immune response.
Researchers load CAR T cells with oncolytic virus to treat solid cancer tumors
14. April 2022
Researchers have devised an immunotherapy technique that combines chimeric antigen receptor-T cell therapy, or CAR-T cell therapy, with a cancer-killing virus to more effectively target and treat solid cancer tumors.
Tumors change their metabolism to spread more effectively
14. April 2022
Cancer cells can disrupt a metabolic pathway that breaks down fats and proteins to boost the levels of a byproduct called methylmalonic acid, thereby driving metastasis, according to new research. The findings open a new lead for understanding how tumors metastasize, or spread to other tissues, and hints at novel ways to block the spread of cancer by targeting the process.
Blood type may offer insights into risk of blood clot in people with cancer
14. April 2022
A new study suggests that people with cancer and non-O blood types, such as types A, B, and AB, face an increased risk of developing venous thromboembolism (VTE), or blood clots in the veins, three months after their initial diagnosis. Scientists have long strived to understand the risk factors for VTE, the leading cause of preventable hospital deaths in the United States. Existing assessments use factors like tumor or cancer type to detect those at high risk of VTE. Yet, many patients without these diagnoses still develop life-threatening blood clots but go unidentified.
Epigenetic regulator explains why some lung cancer patients become resistant to common therapeutics
13. April 2022
Cellular biologists discover why some patients become resistant to standard treatments for nonsmall cell lung cancer.
New platform optimizes selection of combination cancer therapies
13. April 2022
Researchers have developed a new computational tool to select optimal combination therapies for patients with cancer based on the co-occurring alterations in a given tumor.
Omicron: Number of vaccine breakthroughs in cancer patients on the rise, study finds
13. April 2022
For cancer patients, COVID-19 poses a particular risk due to their often compromised immune systems. Now, a study shows that, due to Omicron, there is an increasing number of breakthrough infections in people with cancer, especially while they are undergoing cancer therapy.
Study suggests why most smokers don’t get lung cancer
12. April 2022
Cigarette smoking is overwhelmingly the main cause of lung cancer, yet only a minority of smokers develop the disease. A study suggests that some smokers may have robust mechanisms that protect them from lung cancer by limiting mutations. The findings could help identify those smokers who face an increased risk for the disease and therefore warrant especially close monitoring.
Friend or foe? The immune system collaborates with blood cancer cells
12. April 2022
An international study demonstrates that the body’s immune system attacks itself in a rare type of blood cancer. Consequently, treatment should be targeted at the immune system as well, not only the cancer cells.
Evidence in mice that bacteria in tumors help cancer cells metastasize
8. April 2022
Bacteria promote cancer metastasis by bolstering the strength of host cells against mechanical stress in the bloodstream, promoting cell survival during tumor progression, researchers report.
Exercise shown to release protein reducing bowel cancer risk
8. April 2022
Experts have identified for the first time exactly how exercise can lower your risk of getting bowel cancer and slow the growth of tumors.
Researchers look to licorice for promising cancer treatments
7. April 2022
A research review into molecular insights of a licorice-derived substance called glycyrrhizin for preventing or treating cancer suggests further research could lead to specific agents for clinical use.
Gene deletion behind anomaly in blood cancer cells
6. April 2022
Although clinical labs have known for almost a century that a oddly shaped nucleus resembling pince-nez glasses in blood cells could indicate leukemia, the cause of this anomaly remained unknown. Scientists have now discovered that loss of nuclear Lamin B1 induces defects in the nuclear morphology and in human hematopoietic [blood-forming] stem cells associated with malignancy. The scientists went on to detail that lamin B1 deficiency alters genome organization. This in turn causes expansion of blood-forming stem cells, a bias towards their becoming myeloids, genome instability due to defective DNA damage repair and other problems that set the stage for cancer.
Gene deletion behind anomaly in blood cancer cells
6. April 2022
Although clinical labs have known for almost a century that a oddly shaped nucleus resembling pince-nez glasses in blood cells could indicate leukemia, the cause of this anomaly remained unknown. Scientists have now discovered that loss of nuclear Lamin B1 induces defects in the nuclear morphology and in human hematopoietic [blood-forming] stem cells associated with malignancy. The scientists went on to detail that lamin B1 deficiency alters genome organization. This in turn causes expansion of blood-forming stem cells, a bias towards their becoming myeloids, genome instability due to defective DNA damage repair and other problems that set the stage for cancer.
Cause of metastasis in prostate cancer discovered
6. April 2022
Prostate cancers remain localized in the majority of cases, giving affected individuals a good chance of survival. However, about 20% of patients develop incurable metastatic prostate cancer, resulting in approximately 5,000 deaths each year in Austria alone. Medical research has not yet adequately explained why metastases occur in some people and not in others. A research team has now discovered specific changes in a protein that drive the growth and spread of prostate cancer.
Cause of metastasis in prostate cancer discovered
6. April 2022
Prostate cancers remain localized in the majority of cases, giving affected individuals a good chance of survival. However, about 20% of patients develop incurable metastatic prostate cancer, resulting in approximately 5,000 deaths each year in Austria alone. Medical research has not yet adequately explained why metastases occur in some people and not in others. A research team has now discovered specific changes in a protein that drive the growth and spread of prostate cancer.
The nanodrug that attacks cancer twice
6. April 2022
A single nanoparticle does two jobs: enhancing the effectiveness of chemotherapy and reinvigorating the immune system.
Immune system ‘sentinel’ cells key to maintaining and regulating response to immunotherapy
2. April 2022
The presence of dendritic cells, so-called ‘sentinel’ immune cells, is vital to maintain and regulate the balance of the body’s immune response. Researchers have discovered an essential role of these cells in the treatment of cancer and severe viral infections.