MicroRNAs are small intracellular RNA molecules that regulate gene expression. Therefore, they play important roles in various normal processes of the human body, such as embryogenesis, and the regulation of cell viability. In addition, it is known that abnormal amounts of microRNA stimulate the onset and development of different diseases, such as cancer…
Mutations in the body’s cells randomly accumulate as part of the aging process, and most are harmless. For some people, genetic changes in blood cells can develop in genes that play roles in initiating leukemia and lymphoma even though such people don’t have the blood cancers, the scientists report Oct…
University of Iowa researchers have found a gene in a soil-dwelling amoeba that functions similarly to the main tumor-fighting gene found in humans, called PTEN. …
Although it had long been suspected that obesity ages a person faster, it hadn’t been possible to prove the theory, said study first author Steve Horvath, a professor of human genetics at the David Geffen School of Medicine at UCLA and a professor of biostatistics at the UCLA Fielding School of Public Health. …
Lead author, Krasimira Aleksandrova, says: “These data provide additional incentive to individuals, medical professionals and public health authorities to invest in healthy lifestyle initiatives. …
“The breakthrough is that we have generated cancer in an adult organism and from stem cells, thus reproducing what happens in most types of human cancer. This model has allowed us to identify subtle interactions in the development of cancer that are practically impossible to detect in mice with the current technology available,” explains the biologist Andreu Casali, Associate Researcher at IRB Barcelona and leader of the Drosophila project. …
Human papillomaviruses (HPV) infect epithelial cells in the skin and mucosal tissue and can cause tumor-like growth. Some of these viruses also develop malignant tumors, especially cervical cancer in women…
The scientists at the University’s Centre for Biomolecular Sciences have shed new light on how two proteins found on many human cells are targeted by the human pathogen Neisseria meningitidis which can cause life-threatening meningitis and septicaemia. The proteins, laminin receptor (LAMR1) and galectin-3 (Gal-3) are found in and on the surface of many human cells. Previous research has shown they play diverse roles in a variety of infectious and non-infectious diseases. For example, the LAMR1 is a key receptor targeted by disease-causing pathogens and their toxins and is also a receptor for the spread of cancer around the body and for the development of Alzheimer’s. …
The Nanoparticles by Design Unit at the Okinawa Institute of Science and Technology Graduate University is trying to develop new particles with unprecedented properties that still meet these requirements. Recently, Dr. Jeong-Hwan Kim took one step forward when he experimented with a new type of nanomaterial: the nanosheet. Specifically, he designed a strong, stable, and optically traceable smart 2-D material that responds to pH, or the acidity or basicity of its surrounding environment…
That results in lots of needless worry for women and their families — not to mention the time, discomfort and expense of additional tests, including ultrasounds and biopsies. Recently, a different type of test, ultrasound elastography, has been used to pinpoint possible tumors throughout the body, including in the breast. “It uses imaging to measure the stiffness of tissue, and cancer tissues are stiff,” says Jingfeng Jiang, a biomedical engineer at Michigan Technological University…