Social isolation has been linked to a wide range of health problems, as well as a shorter lifespan in humans and other animals. In fact, during a U.S. Senate hearing on aging issues this spring, a representative for the Gerontological Society of America urged lawmakers to support programs that help older adults stay connected to their communities, stating that social isolation is a “silent…
Research from the Stowers Institute provides evidence suggesting that cancer cells might streamline their genomes in order to proliferate more easily. The study, conducted in both human and mouse cells, shows that cancer genomes lose copies of repetitive sequences known as ribosomal DNA. While downsizing might enable these cells to replicate faster, it also seems to render them less able to…
Scientists from St. Jude Children’s Research Hospital and Fred Hutchinson Cancer Research Center have developed an algorithm that functions like a Rosetta Stone to help decipher how the immune system recognizes and binds antigens. The research should aid development of more personalized cancer immunotherapy and advance diagnosis and treatment of infectious diseases.
A team of researchers has pinpointed a sugar modification in cells that spurs the spread of skin cancer. Its findings spotlight a target in the battle against melanoma.
Drugs that are used in cancer therapy to erase epigenetic alterations in cancer cells simultaneously promote the production of countless mysterious gene transcripts, scientists from the German Cancer Research Center (DKFZ) now report in Nature Genetics. The substances activate hidden regulatory elements in DNA. The unusual gene activity has the potential to stimulate the immune system – a…
An experimental treatment in mice allows the reprogramming of blood cells in order to promote the healing process of cutaneous wounds. This approach could prove to be beneficial in healing challenging wounds in diabetics and major-burn victims.
All cancer tumors have one thing in common – they must feed themselves to grow and spread, a difficult feat since they are usually in a tumor microenvironment with limited nutrients and oxygen. A study at The University of Texas MD Anderson Cancer Center has revealed new details about how an enzyme called acetyl-CoA synthetase 2 (ACSS2) allows brain tumors to grow despite their harsh…
Glaucoma, a leading cause of blindness worldwide, most often is diagnosed during a routine eye exam. Over time, elevated pressure inside the eye damages the optic nerve, leading to vision loss. Unfortunately, there’s no way to accurately predict which patients might lose vision most rapidly. Now, studying mice, rats and fluid removed from the eyes of patients with glaucoma, researchers at…
Even in remission, cancer looms. Former cancer patients and their doctors are always on alert for metastatic tumors. Now scientists at The Scripps Research Institute (TSRI) have discovered why some cancers may reoccur after years in remission.
Autonomous driving, automatic speech recognition, and the game Go: Deep Learning is generating more and more public awareness. Scientists at the Helmholtz Zentrum München and their partners at ETH Zurich and the Technical University of Munich (TUM) have now used it to determine the development of hematopoietic stem cells in advance. In ‘Nature Methods’ they describe how their software…
Doctors have found a way to manipulate wounds to heal as regenerated skin rather than scar tissue. The method involves transforming the most common type of cells found in wounds into fat cells – something that was previously thought to be impossible in humans. Researchers began this work at the Perelman School of Medicine at the University of Pennsylvania, which led to a large-scale, multi-year…
A combination of a diabetes medication and an antihypertensive drug can effectively combat cancer cells. The team of researchers led by Prof. Michael Hall at the Biozentrum of the University of Basel has also reported that specific cancer cells respond to this combination of drugs.
ETH Researchers have used the simplest approach yet to produce artificial beta cells from human kidney cells. Like their natural model, the artificial cells act as both sugar sensors and insulin producers.
When Kerstin Stenson, MD, describes the innovative technique she is helping develop to fight cancer, it seems like she’s describing a Tom Clancy military espionage novel.
Menarini-Silicon Biosystems announced the company’s DEPArray single-cell isolation technology played a key role in a study conducted by researchers from The University of Manchester to develop a model for predicting whether small-cell lung cancer patients will be sensitive or resistant to initial chemotherapy treatment.
n type 1 diabetes, the body attacks its own insulin-producing cells. Scientists at Helmholtz Zentrum München, partner in the German Center for Diabetes Research, and their colleagues at Technical University of Munich have now reported in the journal ‘PNAS’ about a mechanism used by the immune system to prepare for this attack. They were able to inhibit this process through targeted…
Despite their different triggers, the same molecular chain of events appears to be responsible for brain cell death from strokes, injuries and even such neurodegenerative diseases as Alzheimer's. Now, researchers at Johns Hopkins say they have pinpointed the protein at the end of that chain of events, one that delivers the fatal strike by carving up a cell's DNA. The find, they say, potentially…
Nanoparticles known as Cornell dots, or C dots, have shown great promise as a therapeutic tool in the detection and treatment of cancer. Now, the ultrasmall particles – developed more than a dozen years ago by Ulrich Wiesner, the Spencer T. Olin Professor of Engineering at Cornell University – have shown they can do something even better: kill cancer cells without attaching a cytotoxic drug.
When one cell divides into two - that is how all forms of life are propagated - the newly born daughter cells have to be equipped with everything they will need in their tiny lives. Most important of all is that they inherit a complete copy of the genetic information from their mother cell. If this is not the case because a wrong number of chromosomes – on which the genetic information is…
A team of researchers at Yale found that a treatment using bioadhesive nanoparticles loaded with a potent chemotherapy drug proved more effective and less toxic than conventional treatments for gynecological cancer.
For the first time, scientists know what happens to a virus’ shape when it invades a host cell, thanks to an experiment by researchers at Penn State College of Medicine and University of Pittsburgh School of Medicine. Understanding how the virus shape specifically changes could lead to more effective anti-viral therapies.
A small device implanted under the skin can improve breast cancer survival by catching cancer cells, slowing the development of metastatic tumors in other organs and allowing time to intervene with surgery or other therapies. These findings suggest a path for identifying metastatic cancer early and intervening to improve outcomes.
Cancer thrives when mutated cells undergo frequent division. Most anti-cancer drugs work by inserting themselves in between the DNA base pairs that encode our genetic information. This process is known as intercalation, and it can result in subtle changes to the DNA molecule’s geometric shape or tertiary structure. These structural changes interfere with the DNA’s transcription and a cell’s…
Researchers at the Cancer Research UK Cambridge Institute sprayed a dye on oesophageal tissue samples taken from people with Barrett’s oesophagus – a condition that increases the risk of developing oesophageal cancer. The dye sticks to healthy oesophageal cells but not to pre-cancerous cells. They then shone near-infrared light - which is just beyond the red colours that our eyes can normally…
Many cancers only become a mortal danger if they form metastases elsewhere in the body. Such secondary tumours are formed when individual cells break away from the main tumour and travel through the bloodstream to distant areas of the body. To do so, they have to pass through the walls of small blood vessels. Scientists from the Max Planck Institute for Heart and Lung Research in Bad Nauheim and…