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New immunotherapy target discovered for malignant brain tumors

New immunotherapy target discovered for malignant brain tumors
2021-02-15
(Press-News.org) Scientists say they have discovered a potential new target for immunotherapy of malignant brain tumors, which so far have resisted the ground-breaking cancer treatment based on harnessing the body's immune system. The discovery, reported in the journal END

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New immunotherapy target discovered for malignant brain tumors

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Moiré patterns facilitate discovery of novel insulating phases

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RIVERSIDE, Calif. -- Materials having excess electrons are typically conductors. However, moiré patterns -- interference patterns that typically arise when one object with a repetitive pattern is placed over another with a similar pattern -- can suppress electrical conductivity, a study led by physicists at the University of California, Riverside, has found. In the lab, the researchers overlaid a single monolayer of tungsten disulfide (WS2) on a single monolayer of tungsten diselenide (WSe2) and aligned the two layers against each other to generate large-scale moiré patterns. The atoms in both the WS2 and WSe2 layers are arranged in a two-dimensional honeycomb lattice with a periodicity, ...

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PITTSBURGH, Feb. 15, 2021 - A paper published today in Nature shows how chemicals in the areas surrounding tumors--known as the tumor microenvironment--subvert the immune system and enable cancer to evade attack. These findings suggest that an existing drug could boost cancer immunotherapy. The study was conducted by a team of scientists at UPMC Hillman Cancer Center and the University of Pittsburgh School of Medicine, led by Greg Delgoffe, Ph.D., Pitt associate professor of immunology. By disrupting the effect of the tumor microenvironment on immune cells in mice, the researchers were able to shrink tumors, prolong survival and increase sensitivity to immunotherapy. "The majority of people don't respond to immunotherapy," said Delgoffe. "The reason ...

Light used to detect quantum information stored in 100,000 nuclear quantum bits

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[Images and video available: see notes to editors] Wasps provide crucial support to their extended families by babysitting at neighbouring nests, according to new research by a team of biologists from the universities of Bristol, Exeter and UCL published today [15 February] in Nature Ecology and Evolution. The findings suggest that animals should often seek to help more distant relatives if their closest kin are less in need. Dr Patrick Kennedy, lead author and Marie Curie research fellow in the School of Biological Sciences at the University of Bristol, said: "These wasps can act like rich family members lending a hand to their second cousins. If there's not much more you can do to help your immediate family, you can ...

Higher elevation birds sport thicker down "jackets" to survive the cold

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Feathers are a sleek, intricate evolutionary innovation that makes flight possible for birds, but in addition to their stiff, aerodynamic feathers used for flight, birds also keep a layer of soft, fluffy down feathers between their bodies and their outermost feathers to regulate body temperature. Using the Smithsonian's collection of 625,000 bird specimens, Sahas Barve, a Peter Buck Fellow at the Smithsonian's National Museum of Natural History, led a new study to examine feathers across 249 species of Himalayan songbirds, finding that birds living at higher elevations have more of the fluffy down--the type of feathers humans stuff their jackets with--than birds from lower elevations. Published ...

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Ciliopathies are genetic disorders caused by defects in the structure and function of cilia, microtubule-based organelles present on the surface of almost every cell in the human body which play crucial roles in cell signalling. Ciliopathies present a wide range of often severe clinical symptoms, frequently affecting the head and face and leading to conditions such as cleft palate and micrognathia (an underdeveloped lower jaw that can impair feeding and breathing). While we understand many of the genetic causes of human ciliopathies, they are only half the story: the question remains as to why, at a cellular level, defective cilia cause developmental craniofacial abnormalities. Researchers have now discovered that ciliopathic micrognathia in an animal model results from abnormal skeletal ...

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Neanderthals and Homo sapiens used identical Nubian technology

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[Press-News.org] New immunotherapy target discovered for malignant brain tumors