Experimental drug laquinimod reduces progression of multiple sclerosis in mice

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Experimental drug laquinimod reduces progression of multiple sclerosis in mice

Animal model experiments suggest how a new medication for multiple sclerosis might work in people.

A drug currently being developed for people suffering from multiple sclerosis (MS) has shown promising results to stop the progression of the disease in mice. Known as laquinimod, it is being tested phase 3 clinical trials, but the way it works on the human body is still not very well understood.

So far, no treatment is known to cure MS, and the disease is only controlled with medication which modifies the disease or addresses its symptoms – so there are high hopes regarding laquinimod.

In this study, published in the journal Neurology: Neuroimmunology & Neuroinflammation, researchers investigated the effects of laquinimod on immune cells, which are dysfunctional in patients with MS.

Their work confirms previous evidence that the drug can act by changing the behaviour of immune cells and preventing them from entering the brain and spinal cord.

Impact on cell clusters

The scientists, from the University of California-San Francisco, worked with mice models of MS, giving the rodents either a placebo or oral laquinimod. The results were significant: 29% of the mice that received the drug developed MS vs 58% of those on the placebo. A reduction in harmful clusters of B cells, which play a key role in the development of primary progressive MS (see box) was also observed when the animals had been givenlaquinimod.

Read Full Article: Experimental drug laquinimod reduces progression of multiple sclerosis in mice

Read Full Article: Experimental drug laquinimod reduces progression of multiple sclerosis in mice

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