Oncology & Cancer

Harnessing the power of viruses to kill cancers

In the global hunt for both a cure and cancer treatments, researchers are finding it may be the very viruses we try to shield ourselves against that hold great promise in fighting the deadly disease.

Oncology & Cancer

New biomarker predicts success of immunotherapy in kidney cancer

Immunotherapy increases survival rates in kidney cancer, but does not work for everyone. A Leuven research team has developed a new method to predict which patients will benefit from it. The team of Francesca Finotello (Computational ...

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Immunity (medical)

Immunity is a biological term that describes a state of having sufficient biological defenses to avoid infection, disease, or other unwanted biological invasion. Immunity involves both specific and non-specific components. The non-specific components act either as barriers or as eliminators of wide range of pathogens irrespective of antigenic specificity. Other components of the immune system adapt themselves to each new disease encountered and are able to generate pathogen-specific immunity.

Adaptive immunity is often sub-divided into two major types depending on how the immunity was introduced. Naturally acquired immunity occurs through contact with a disease causing agent, when the contact was not deliberate, whereas artificially acquired immunity develops only through deliberate actions such as vaccination. Both naturally and artificially acquired immunity can be further subdivided depending on whether immunity is induced in the host or passively transferred from a immune host. Passive immunity is acquired through transfer of antibodies or activated T-cells from an immune host, and is short lived, usually lasts only a few months, whereas active immunity is induced in the host itself by antigen, and lasts much longer, sometimes life-long. The diagram below summarizes these divisions of immunity.

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