Schlagwort: cancer
Microorganism sheds new light on cancer resistance
24. Dezember 2021
Scientists describe T. adhaerens‘ unusual behavior, including its capacity to repair its DNA even after significant radiation damage and to extrude injured cells, which later die. The findings advance scientific investigations of natural cancer-suppression mechanisms across life. Insights gleaned from these evolutionary adaptations may find their way into new and more effective therapies for this leading killer.
Honing in on shared network of cancer genes
24. Dezember 2021
Using network modeling, researchers have honed in on a set of gene interactions that are critical to malignancy and likely to be fertile ground for broad cancer therapies.
Nanoparticle therapeutic enhances cancer immunotherapy
20. Dezember 2021
Researchers have discovered that a nanoparticle therapeutic enhances cancer immunotherapy and is a possible new approach in treating malignant pleural effusion (MPE). MPE is the accumulation of fluid between the chest wall and lungs and is accompanied by malignant cells and/or tumors.
Reducing copper in the body alters cancer metabolism to reduce risk of aggressive breast cancer
17. Dezember 2021
Depleting copper levels may reduce the production of energy that cancer cells need to travel and establish themselves in other parts of the body by a process referred to as metastasis, according to a new study. The discovery of the underlying mechanisms of how copper depletion may help reduce metastasis in breast cancer will help inform the design of future clinical trials.
Immune system responds to mRNA treatment for cancer, researchers find
17. Dezember 2021
Adding messenger RNA, or mRNA therapy improves the response to cancer immunotherapy in patients who weren’t responding to the treatment, new research shows. Immunotherapy uses the body’s immune system to prevent, control and eliminate cancer.
Improving drug options for colorectal cancer patients
15. Dezember 2021
Patients with colorectal cancer were among the first to receive targeted therapies. These drugs aim to block the cancer-causing proteins that trigger out-of-control cell growth while sparing healthy tissues. But some patients are not eligible for these treatments because they have cancer-promoting mutations that are believed to cause resistance to these drugs. Now, physician-scientists have used computer modeling and cell studies to discover that more patients may be helped by a common class of targeted therapies than previously thought.
Boosting anti-cancer action by driving up immunity at tumor site
15. Dezember 2021
Driving up the immune response at the site of a cancer tumor with nanotechnology may help enhance immunotherapy treatments in advanced stages of the disease, new research in mice suggests.
Cancer-spotting AI and human experts can be fooled by image-tampering attacks
15. Dezember 2021
Artificial intelligence (AI) models that evaluate medical images have potential to speed up and improve accuracy of cancer diagnoses, but they may also be vulnerable to cyberattacks. Researchers simulated an attack that falsified mammogram images, fooling both an AI breast cancer diagnosis model and human breast imaging radiologist experts.
Gene Network changes associated with cancer onset and progression identify new candidates for targeted gene therapy
15. Dezember 2021
Researchers have identified novel changes in gene network interactions associated with cancer that may lead to new treatment targets for chemotherapy. Their work shows that more than 90% of changes in gene network interactions in nine types of cancer studied are not detectable by current tests focused on changes in gene expression.
Breast cancer classified into 12 unique biological groups
9. Dezember 2021
Researchers have demonstrated a major step forward in melding two key methods for studying breast cancer: one by genetic analysis and the second by looking at the architecture of cells, or their pathology. Using The Cancer Genome Atlas Breast Cancer Data set, they developed classification method that divides breast cancers into 12 distinct biological groups. This could aid future research efforts and enable faster translation of molecular findings into the pathology lab for clinical use, they report.
CRISPR/Cas9 gene editing boosts effectiveness of ultrasound cancer therapy
9. Dezember 2021
Sonodynamic therapy uses ultrasound in combination with drugs to release harmful reactive oxygen species (ROS) at the site of a tumor. However, the treatment isn’t very effective because cancer cells can activate antioxidant defense systems to counteract it. Now, researchers have breached these defenses with CRISPR/Cas9 gene editing, allowing sonodynamic therapy to effectively shrink tumors in a mouse model of liver cancer.
Glucose control is a key factor for reduced cancer risk in obesity and type 2 diabetes
7. Dezember 2021
Good glucose control is important for reduction of cancer risk in obesity and type 2 diabetes. Large durable weight loss, as such, appears to afford protection against cancer, but with good glucose control the number of cancer cases also drops radically, a new study shows.
Scientists pinpoint protein’s role in critical gene expression
3. Dezember 2021
New research has implications for cancer research because it explains part of the paradox for how cells can transcribe genes in the absence of high-energy sources, a situation that unfolds in cancer and has puzzled researchers for years.
Magnetic resonance imaging (MRI) and artificial intelligence (AI) can detect early signs of tumor cell death after novel therapy
2. Dezember 2021
A recent study demonstrates that magnetic resonance imaging (MRI) and artificial intelligence (AI) can be used to detect early signs of tumor cell death in response to a novel virus-based cancer therapy.
Targeting the brain’s immune cells may help prevent or treat Alzheimer’s disease
2. Dezember 2021
A gene mutation linked to Alzheimer’s disease alters a signaling pathway in certain immune cells of individuals with the disease, according to a new study. The team also found that blocking the pathway — with a drug that’s currently being tested in cancer clinical trials — protects against many features of the condition in a preclinical model. The results could lead to new strategies to block the development of Alzheimer’s disease or slow its progression.
Discovery of a Stem-like T cell in type 1 diabetes holds potential for improving cancer immunotherapy
2. Dezember 2021
As an autoimmune disease, Type 1 diabetes raises important questions about immune cell activity that have broad implications for immunotherapy.
Biosensor barcodes identify, detail ‘chatting’ among cancer cells
2. Dezember 2021
Ever since the first barcode appeared on a pack of chewing gum in 1974, the now-ubiquitous system has enabled manufacturers, retailers and consumers to quickly and effectively identify, characterize, locate and track products and materials. Scientists now demonstrate how they can do the same thing at the molecular level, studying the ways cancer cells ‚talk‘ with one another.
Successful treatment in mice for severe childhood cancer
2. Dezember 2021
In mice with high-risk neuroblastoma, tumors disappeared in response to a new combination treatment with precision medicines, a recent study shows. This is a vital step toward a potentially curative treatment for a form of cancer affecting young children that is currently difficult to treat.
Strategy to overcome tumors’ resistance to immunotherapy generates promising clinical trial results
24. November 2021
Immune checkpoint inhibitors strengthen the immune response against cancer cells, but the medications are ineffective against certain tumors. Results from a new clinical trial indicate that adding radiation may overcome this resistance to immune checkpoint inhibitors.
New findings on the link between CRISPR gene-editing and mutated cancer cells
19. November 2021
A protein that protects cells from DNA damage, p53, is activated during gene editing using the CRISPR technique. Consequently, cells with mutated p53 have a survival advantage, which can cause cancer. Researchers have found new links between CRISPR, p53 and other cancer genes that could prevent the accumulation of mutated cells without compromising the gene scissors‘ effectiveness.
Exercise increases the body’s own ‘cannabis-like‘ substance which reduces chronic inflammation
18. November 2021
Exercise increases the body’s own cannabis-like substances, which in turn helps reduce inflammation and could potentially help treat certain conditions such as arthritis, cancer and heart disease.
Shape-morphing microrobots deliver drugs to cancer cells
18. November 2021
Chemotherapy successfully treats many forms of cancer, but the side effects can wreak havoc on the rest of the body. Delivering drugs directly to cancer cells could help reduce these unpleasant symptoms. Now, in a proof-of-concept study, researchers have made fish-shaped microrobots that are guided with magnets to cancer cells, where a pH change triggers them to open their mouths and release their chemotherapy cargo.
The prostate cancer cell that got away
17. November 2021
Researchers have pioneered a new method to track the progression of prostate cancer in mice, from its birth to its spread into other tissues. This approach allows researchers to study the origins of prostate cancer in a more realistic context than traditional methods allow.
CRISPR screen identifies new anti-inflammatory drug target
12. November 2021
A metabolic enzyme that has been studied in cancer biology and is important for T cell function may offer a new target for anti-inflammatory therapeutics, researchers have discovered. They report that inhibiting or genetically deleting the enzyme, called MTHFD2, reduced disease severity in multiple inflammatory disease models.
How alike are the cancer cells from a single patient?
12. November 2021
Using an experimental system involving new genetic technology, researchers analyzed the gene expression signatures of a representative sample of barcoded leukemia cells. After implanting some of the leukemia cells in mice, they discovered that distinct gene expression signatures correlated with the various organs where the cancer cells ended up. They were also able to identify previously unknown genes that are involved in disease progression and chemotherapy resistance, which may offer new targets for treatment.