Saturday April 20, 2019

Scientists develop 3D model of cells to help Parkinson’s patients

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London: In a major step towards development of personalised drugs for Parkinson’s patients, researchers have managed to grow three dimensional models of cells that are lost with the progress of the disease.

The progressive loss of neurons in the brain of Parkinson’s patients is slow yet inexorable. So far, there are no drugs that can halt this insidious process.

“This is an important step towards personalised drug development,” said study leader Ronan Fleming from Luxembourg Centre for Systems Biomedicine (LCSB) of the University of Luxembourg.

indianexpress.com
indianexpress.com

Parkinson’s disease is characterised, in particular, by death of dopamine-producing neurons in the Substantia-nigra of the midbrain.

It is already possible to grow these dopaminergic neurons in cell cultures.

“But most such cell cultures are two-dimensional, with the cells growing along the base of a petri dish, for example,” Fleming said.  He added, “Instead, we have the neurons grow in a gel that yields a far better model of their natural, three-dimensional environment.”

The scientists are confident that this system could greatly facilitate the continuing search for therapeutic agents in future as it models the natural conditions in the brain more realistically than other systems available so far.

It is also significantly cheaper to employ in the laboratory, the researchers said.

As a next step, Fleming’s team and their international collaborators want to study cells from patients and to test potential active pharmaceutical ingredients.

Promising substances will then be tested in mice, the researchers said.

The results were recently published in the journal Lab on a Chip.

(IANS)

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Researchers To Develop Novel Therapy For Treating Parkinson’s Disease

Researchers developing new therapy to treat Parkinson's disease

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10 million people living worldwide suffer from Parkinson;s disease Pixabay
10 million people living worldwide suffer from Parkinson;s disease Pixabay

Cell replacement may play an increasing role in alleviating the symptoms such as movement problems and memory loss of Parkinson’s disease (PD), researchers say.

The most common PD treatment today is based on enhancing the activity of the nigrostriatal pathway in the brain with dopamine-modulating therapies, thereby increasing striatal dopamine levels and improving motor impairment associated with the disease.

However, this treatment has significant long-term limitations and side effects.

“We are in desperate need of a better way of helping people with PD. It is on the increase worldwide. There is still no cure, and medications only go part way to fully treat incoordination and movement problems,” said Claire Henchcliffe, MD, from Weill Cornell Medicine in the US.

Parkinsons
Parkinson’s is caused by a lack of dopamine made by brain cells. (IANS)

Recent strides in stem cell technology mean that quality, consistency, activity, and safety can be assured, and that it is possible to grow essentially unlimited amounts of dopamine-producing nerve cells in the laboratory for transplantation, said a study, published in the Journal of Parkinson’s Disease.

“We are moving into a very exciting era for stem cell therapy. The first-generation cells are now being trialed and new advances in stem cell biology and genetic engineering promise even better cells and therapies in the future,” said Malin Parmar, postdoctoral candidate from the Lund University in Sweden.

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“There is a long road ahead in demonstrating how well stem cell-based reparative therapies will work, and much to understand about what, where, and how to deliver the cells, and to whom,” said Parmar. (IANS)