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Body’s anti-HIV ‘training manual’ offers vaccine hopes

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~~~~BBCNewsHealth1

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The body’s own “training manual” for attacking HIV has been recorded by US scientists and it is hoped it can be used to design vaccines.

HIV mutates in order to survive the onslaught of a patient’s immune system.

However, some patients develop highly effective antibodies that can neutralise huge swathes of HIV mutants.

A North Carolina team analysed the arms race between body and virus, published in the journal Nature, and has shown how these antibodies are made.

When someone is infected with HIV, their body produces antibodies to attack it. But the virus mutates and evades the offensive, so the body produces new antibodies that the virus then evades and the war goes on.

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http://www.bbc.co.uk/news/health-22002455

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Skin cancer ‘able to fight off body’s immune system’

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~~~~BBCNewsHealth1

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A deadly form of skin cancer is able to fend off the body’s immune system, UK researchers have found.

Analysis of tumour and blood samples shows that melanoma knocks out the body’s best immune defence.

A potential test could work out which patients are likely to respond to treatment, the Journal of Clinical Investigation reports.

Cancer Research UK said the body’s response was a “complex puzzle”.

Previous work from the team at King’s College London showed that while patients with melanoma produced antibodies that could attack tumour cells, the immune system often seemed powerless to stop the cancer progressing.

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http://www.bbc.co.uk/news/health-21635697

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