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Tag: "invaders" at biology news

Can engineered immune cells stop AIDS?

...versary, Wang wants to synthetically alter the HIV invaders and use their hollow shells as delivery vehicles to insert DNA that will counteract the infection. The "Cadillac" of this gene delivery system is an HIV-based "lentiviral vector," a type of retrovirus that uses the backbone of a virus to infe...

Trojan horse strategy defeats drug-resistant bacteria

...ms to keep iron away from infecting organisms, and invaders must steal some if they are to survive." Iron is critical for the growth of bacteria and for their ability to form biofilms, slime-encased colonies of microbes that cause many chronic infections. "Because iron is so important in infection, we th...

Hives ferment a yeasty brew, attract beetle pest

.... and Europe have been suffering from a variety of invaders and ailments including varroa mite infestations, fungal infections and beetles. Recently, beekeepers in the U.S. reported occurrences of Colony Collapse Disorder, a syndrome where hives are found abandoned, except for the queen and a few workers. Bee...

Herpes infection may be symbiotic, help beat back some bacteria

...ldiers on yellow alert, causing them to patrol for invaders with their eyes wide open and defense weapons ready." Other scientists previously had shown that interferon gamma helps the immune system fight off some strains of bacteria. This led Virgin and his colleagues to test herpes-infected mice with expo...

UCLA AIDS Institute researchers find a peptide that encourages HIV infection

...efends against viruses, bacteria and other foreign invaders is reversed, the peptide actually encourages infection with HIV. The findings, published in the April issue of AIDS Research and Human Retroviruses, could pave the way for the use of such peptides in gene therapy using HIV-based vectors as the deliv...

Alien plants attack using 'resource conservation' as weapon, researchers say

...rces. The finding, which sheds new light on how invaders achieve success, may change the way scientists thi... with low nutrients and a desert. They compared 19 invaders with 19 closely related indigenous plants-for example, an invasive raspberry versus a native raspber...

'Nurse cells' make life and death decisions for infection-fighting cells

... the thymus is to recognize harmful invaders. Once invaders have been identified, T cells then attempt to eliminate disease-infected cells. "In early studies, it was suggested that thymic nurse cells only removed non-functional thymocytes," said Eve Barak, program director in NSF's Division of Molecular an...

Genomic Analysis Uncovers New Targets for HIV Vaccine

...r role in the immune system by identifying foreign invaders and "tagging" them for destruction. Two of the HLA genes, known as HLA-A and B, are turned off by HIV when it enters the body, which keeps the immune system from recognizing the virus as foreign. HLA-C however is not thought to be turned off by HIV-...

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