Noninvasive brain biopsy shows improved sensitivity in tumor detection

A team of researchers has developed a noninvasive diagnostic method that may one day replace the biopsy with a simple blood test.

Quelle: Sciencedaily

Malaria: New knowledge about naturally acquired immunity may improve vaccines

When you have become immune to malaria after having contracted the disease, it seems that the body uses a more efficient protection than if you have been vaccinated against the deadly disease. The researchers believe the new findings may be used to improve existing malaria vaccines.

Quelle: Sciencedaily

PFAS exposure, high-fat diet drive prostate cells’ metabolism into pro-cancer state

A high-fat diet synergizes with exposure to PFAS to change the metabolism of benign and malignant prostate cells, according to a new study in mice.

Quelle: Sciencedaily

New technique may lead to safer stem cell transplants

Studying mice, researchers have developed a method of stem cell transplantation that does not require radiation or chemotherapy. Instead, the strategy takes an immunotherapeutic approach, combining the targeted elimination of blood-forming stem cells in the bone marrow with immune-modulating drugs to prevent the immune system from rejecting the new donor stem cells.

Quelle: Sciencedaily

CRISPR screen identifies new anti-inflammatory drug target

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.

Quelle: Sciencedaily

How alike are the cancer cells from a single patient?

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.

Quelle: Sciencedaily

How gene mutation boosts cancer risk

Scientists have revealed why a mutation in the UTX gene disrupts cells‘ ability to suppress tumors.

Quelle: Sciencedaily

Data available for training AI to spot skin cancer are insufficient and lacking in pictures of darker skin

The images and accompanying data available for training artificial intelligence (AI) to spot skin cancer are insufficient and include very few images of darker skin, according to new research.

Quelle: Sciencedaily

Landmark study points to source of rapid aging, chronic inflammation in people living with HIV

In a groundbreaking study of people living with HIV, researchers found that elusive white blood cells called neutrophils play a role in impaired T cell functions and counts, as well as the associated chronic inflammation that is common with the virus.

Quelle: Sciencedaily

Safety concerns raised for neuroblastoma candidate drug

Scientists have identified the primary target of the experimental cancer drug CX-5164, revealing a possible risk for late effects of treatment.

Quelle: Sciencedaily

Drug used to prevent miscarriage increases risk of cancer in offspring

Exposure in utero to a drug used to prevent miscarriage can lead to an increased risk of developing cancer, according to researchers.

Quelle: Sciencedaily

An innovative imaging technique for dynamic optical nanothermometry

A new imaging technique can measure temperature in 2D, without contact, and in just a snap.

Quelle: Sciencedaily

Cellular aging: A basic paradox elucidated

Cancer researchers show for the first time that cellular senescence, which occurs when aging cells stop dividing, is caused by irreversible damage to the genome rather than simply by telomere erosion.

Quelle: Sciencedaily

Fat-secreted molecule lowers response to common cancer treatment

Leptin, a molecule produced by fat cells, appears to cancel out the effects of the estrogen-blocking therapy tamoxifen, a drug commonly used to treat and prevent breast cancers, suggests a new study.

Quelle: Sciencedaily

Immunotherapy-chemotherapy treatment coupled with in-depth genomic analyses leads to improved survival for patients with mesothelioma

Combining the immunotherapy agent durvalumab with the chemotherapy agents pemetrexed and cisplatin or carboplatin may provide a new treatment option for patients who have inoperable pleural mesothelioma, a cancer of the tissues lining the lungs, according to a phase II clinical trial.

Quelle: Sciencedaily

New symptoms identified that could help doctors diagnose pancreatic cancer

Researchers have identified a series of symptoms associated with pancreatic cancer, including two previously unrecognised symptoms — feeling thirsty and having dark urine.

Quelle: Sciencedaily

High cell membrane tension constrains the spread of cancer

The membranes of cancer cells are more pliant than the membranes of normal cells. A research collaboration has discovered that cancer invasion and migration can be supressed in mice by manipulating the stiffness of the cell membrane. Hopefully this will contribute towards the development of new treatments that target the physical characteristics of cancer cells.

Quelle: Sciencedaily

Arginine, an inexpensive oral drug, could enhance radiation therapy for cancer

Treatment with arginine, one of the amino-acid building blocks of proteins, enhanced the effectiveness of radiation therapy in cancer patients with brain metastases, in a proof-of-concept, randomized clinical trial.

Quelle: Sciencedaily

New strategy against treatment-resistant prostate cancer identified

A new study has identified an RNA molecule that suppresses prostate tumors. The scientists found that prostate cancers develop ways to shut down this RNA molecule to allow themselves to grow. According to the new research — conducted in mice implanted with human prostate tumor samples — restoring this so-called long noncoding RNA could be a new strategy to treat prostate cancer that has developed resistance to hormonal therapies.

Quelle: Sciencedaily

How cells correctly choose active genes

It is essential for cells to control precisely which of the many genes of their genetic material they use. This is done in so-called transcription factories, molecular clusters in the nucleus. Researchers have now found that the formation of transcription factories resembles the condensation of liquids. Their findings will improve the understanding of causes of diseases and advance the development of DNA-based data storage systems.

Quelle: Sciencedaily

RAS inhibitors for use in fighting more cancers

New findings help better understand the how one of the most commonly mutated genetic drivers of cancer passes signals that cause the disease.

Quelle: Sciencedaily

Ibrutinib improves survival for younger people with diffuse large B-cell lymphoma

New evidence suggests that adding the targeted therapy ibrutinib (Imbruvica) to a standard chemotherapy regimen can improve how long some younger people with a specific form of diffuse large B-cell lymphoma (DLBCL) live.

Quelle: Sciencedaily

Scientists discover how mitochondria import antioxidants

A new finding offers researchers a direct way to investigate oxidative stress and its damaging effects in aging, cancer and other diseases.

Quelle: Sciencedaily

Experimental drug boosts immunotherapy effectiveness in pancreatic cancer in mice

An experimental drug enhanced the benefit of an immunotherapy to fight pancreatic cancer in mice by increasing the number of immune cells in the immediate vicinity of the tumor, leading to a reduction in tumor growth, and in some mice, eliminating their cancer.

Quelle: Sciencedaily

It takes cellular teamwork to heal the intestine

A meticulous single-cell analytical approach to study the repair process of rotavirus-caused injury in an animal model revealed that the damaged epithelium contains a variety of cell types involved in repairing it through broad coordinated responses that ultimately heal the damaged tissue.

Quelle: Sciencedaily