Researcher discovers key gene responsible for cancer drug resistance

A researcher has discovered an enzyme that plays a key role in the ability of cancer cells to resist drug treatment.

Quelle: Sciencedaily

Small molecule may prevent metastasis in colorectal cancer

The compound works by hindering a key pathway that cancer cells rely upon to hoard energy, and is already undergoing clinical trials.

Quelle: Sciencedaily

Weighing cancer cells to personalize drug choices

Researchers have developed a new way to determine whether individual patients will respond to a specific cancer drug or not. This kind of test could help doctors to choose alternative therapies for patients who don’t respond to the therapies normally used to treat their cancer.

Quelle: Sciencedaily

How high-fat diets allow cancer cells to go unnoticed

The immune system relies on cell surface tags to recognize cancer cells. Researchers discovered mice who ate high-fat diets produced less of these tags on their intestinal cells, suppressing the ability of immune cells to identify and eliminate intestinal tumors. The high-fat diet also reduced the presence of certain bacteria in the mice’s gut, which normally helps maintain the production of these tags.

Quelle: Sciencedaily

Scientists develop artificial intelligence method to predict anti-cancer immunity

Researchers and data scientists have developed an artificial intelligence technique that can identify which cell surface peptides produced by cancer cells called neoantigens are recognized by the immune system.

Quelle: Sciencedaily

Breast cancers: Ruptures in cell nuclei promotes tumor invasion

When cells multiply and migrate, they can be compressed and their nucleus may break open. This phenomenon causes DNA damage. Scientists have now shown that this facilitates the spread of cancer cells in breast tumors.

Quelle: Sciencedaily

Scientists identify new therapeutic target in ovarian cancer subtype with poor prognosis

Mutations in the ARID1A gene are present in more than 50% of ovarian clear cell carcinomas (OCCC), for which effective treatments are lacking. Scientists discovered that loss of ARID1A function enhances a cellular stress response pathway that promotes survival of cancer cells, which become sensitive to pharmacological inhibition of this pathway.

Quelle: Sciencedaily

Novel assay finds new mechanism underlying red blood cell aging

A multifaceted microfluidic in vitro assay is helping to identify the role of hypoxia on red blood cell aging via the biomechanical pathways. It holds promise for investigating hypoxic effects on the metastatic potential and relevant drug resistance of cancer cells. It also can be a useful tool to predict the mechanical performance of natural and artificial red blood cells for transfusion purposes and to further extend to red blood cells in other blood diseases and other cell types.

Quelle: Sciencedaily

Cancer cells’ unexpected genetic tricks for evading the immune system

In a surprising new finding in mice, researchers have discovered that many genes linked to human cancer block the body’s natural defense against malignancies.

Quelle: Sciencedaily

Discovery of origin of esophageal cancer cells highlights importance of screening for pre-cancerous Barrett’s esophagus

Abnormal cells that go on develop into esophageal cancer — cancer that affects the tube connecting the mouth and stomach — start life as cells of the stomach, according to scientists. The study found that a particular subtype of esophageal cancer known as esophageal adenocarcinoma is always preceded by Barrett’s esophagus — abnormal cells of the esophagus — even if these cells are no longer visible at the time of cancer diagnosis. This confirms that screening for Barrett’s is an important approach to esophageal cancer control.

Quelle: Sciencedaily

Pumping iron: Inhibition of key pathway promotes iron-dependent cell death in pancreatic cancer cells

A cell culture study maps mechanisms underlying a new potential strategy for killing pancreatic cancer cells through a type of cell death known as ferroptosis.

Quelle: Sciencedaily

New findings about cancer cell growth may hold promise for future cancer treatments

For a cell to grow and divide, it needs to produce new proteins. This also applies to cancer cells. Researchers have now investigated the protein eIF4A3 and its role in the growth of cancer cells. The study shows that by blocking or reducing the production of this protein, other processes arise that cause the growth and cell division of cancer cells to cease and eventually die.

Quelle: Sciencedaily

Changes in lung tissue indicate preparation for supporting the growth of disseminated breast cancer cells

A new study has revealed changes in healthy lung tissue which indicate preparation to receive metastases. The changes were identified in the area known as ‚the micro-environment‘ of the tumor, and specifically in connective tissue known as fibroblasts.

Quelle: Sciencedaily

Experimental model of ovarian cancer shows effect of healthy cell arrangement in metastasis

A key element to slowing metastasis in ovarian cancer is understanding the mechanisms of how tumor cells invade tissues. Biophysics researchers explain how microscopic defects in how healthy cells line up can alter how easily ovarian cancer cells invade tissue. Using an experimental model, the group found that disruptions in the normal cellular layout, called topological defects, affect the rate of tumor cell invasion.

Quelle: Sciencedaily

New breakthrough to help immune systems in the fight against cancer

New research has identified potential treatment that could improve the human immune system’s ability to search out and destroy cancer cells within the body. Scientists have identified a way to restrict the activity of a group of cells which regulate the immune system, which in turn can unleash other immune cells to attack tumours in cancer patients.

Quelle: Sciencedaily

Scientists provide new insight on how to stop transcription of cancer cells

Findings could help pave the way for cancer therapies that target TAF12, potentially stopping transcription in cancer cells and helping decrease the growth of cancerous tumors.

Quelle: Sciencedaily

Cancer: Information theory to fight resistance to treatments

A major challenge in cancer therapy is the adaptive response of cancer cells to targeted therapies. Although this adaptive response is theoretically reversible, such a reversal is hampered by numerous molecular mechanisms that allow the cancer cells to adapt to the treatment. A team has used information theory, in order to objectify in vivo the molecular regulations at play in the mechanisms of the adaptive response and their modulation by a therapeutic combination.

Quelle: Sciencedaily

Single cancer cells have different appetites for fatty acids

A recently developed method provides new insights into cancer biology by allowing researchers to show how fatty acids are absorbed by single cells.

Quelle: Sciencedaily

Preventing lung cancer’s unwelcome return

Approximately 15% of lung cancer tumors are caused by a mutation in a growth receptor called EGFR. An effective drug can kill most of the cancer cells, but the tumor eventually grows back. Researchers investigated the molecular mechanisms behind this relapse. They discovered that some of the cells were resistant to the EGFR treatment; they survived using a parallel pathway.

Quelle: Sciencedaily

Anti-androgen therapy can fuel spread of bone tumors in advanced prostate cancer

Anti-androgen therapy is commonly used to treat patients with advanced prostate cancer at stages where the disease has spread to the bones. However, new research has found that anti-androgen treatment can actually facilitate prostate cancer cells to adapt and grow in the bone tumor microenvironment model developed by biomedical scientists.

Quelle: Sciencedaily

Unraveling the mechanisms that create the individualized metabolism in leukemia

Lysine-specific demethylase 1 (LSD1), an enzyme involved in gene expression, produces individualized metabolism depending on the type of acute myeloid leukemia cells. Cancer cells have a unique ability to metabolize substances differently from normal cells, and this ability is considered to be a promising therapeutic target. New findings may contribute to the safe and effective use of LSD1 inhibitors as potential anticancer agents, and to the development of highly specific treatments for various leukemia types.

Quelle: Sciencedaily

Novel microscopy method provides look into future of cell biology

What if a microscope allowed us to explore the 3D microcosm of blood vessels, nerves, and cancer cells instantaneously in virtual reality? What if it could provide views from multiple directions in real time without physically moving the specimen and worked up to 100 times faster than current technology?

Quelle: Sciencedaily

Machine learning helps in predicting when immunotherapy will be effective

Cancer cells can put the body’s immune cells into sleep mode. Immunotherapy can reverse this, but it doesn’t work for all patients and all cancer types. Researchers have now developed machine learning models that can predict if someone is likely to respond positively to immunotherapy. In clinical settings, this could pave the way for personalized immunotherapy approaches for patients, as well as guidance on how to best combine immunotherapy with other treatments.

Quelle: Sciencedaily

Microfilter device capable of detecting trace amounts of cancer cells in one mL of blood

Researchers have developed a microfilter device that can easily separate and capture trace amounts of cancer cells in blood. The palm-sized device is expected to contribute to the development of new cancer diagnostic technologies based on cancer cells in the blood, such as early detection by blood test, postoperative management, and recurrence monitoring.

Quelle: Sciencedaily

Blood stem cells make brain tumors more aggressive

Scientists have discovered stem cells of the hematopoietic system in glioblastomas, the most aggressive form of brain tumor. These hematopoietic stem cells promote division of the cancer cells and at the same time suppress the immune response against the tumor. This surprising discovery might open up new possibilities for developing more effective immunotherapies against these malignant brain tumors.

Quelle: Sciencedaily