Immune responses to prevent or delay the spread of melanoma, a deadly form of skin cancer, are more likely to prolong survival in patients if their immune cells carry a special kind of marker on the surface, according to a team of researchers at the University of Virginia Health System. The finding is published in the November 1 issue of the journal Cancer Research, found on the web at http://cancerres.aacrjournals.org/
The researchers correlated the presence or absence of the protein with survival in 52 U.Va. patients with advanced metastatic melanoma who were enrolled in experimental clinical trials over the last decade. They found that survival increased by fifty percent in patients whose T lymphocytes (the immune cells that kill tumors) carried a particular protein, or chemokine receptor, called CXCR3.
Increased survival was seen in patients with Stage III metastatic melanoma, but no increased survival was noticed in patients with Stage IV, stressing the importance of early detection and treatment for melanoma. "As immunologists continue to target the spread of cancer, this research gives scientists new clues to help develop vaccines that both ’turn-on’ cancer-killing immune cells, as well as instruct the cells on how to find tumors. Together, that will improve the efficacy of vaccines against cancer in the future," said the study’s principal investigator David W. Mullins, PhD, assistant professor of microbiology and a researcher in the Human Immune Therapy Center (HITC) at the U.Va. Health System.
Cryo-electron microscopy achieves unprecedented resolution using new computational methods
24.03.2017 | DOE/Lawrence Berkeley National Laboratory
How cheetahs stay fit and healthy
24.03.2017 | Forschungsverbund Berlin e.V.
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...
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24.03.2017 | Physics and Astronomy