Nanowhiskers Key to Create Human Muscle Tissue

by Sheela Philomena on  March 14, 2011 at 11:26 AM Research News   - G J E 4
Researchers have identified minute whiskers in nanoscale dimensions taken from sea creatures that could have the essential factor to grow human muscle tissue. University of Manchester researchers have taken cellulose from tunicates, commonly known as sea squirts - that can influence the behavior of skeletal muscle cells in laboratory.
 Nanowhiskers Key to Create Human Muscle Tissue
Nanowhiskers Key to Create Human Muscle Tissue

These nanostructures are several thousand times smaller than muscle cells and are the smallest physical feature found to cause cell alignment.

Alignment is important since a lot of tissue in the body, including muscle, contains aligned fibres which give it strength and stiffness.

Cellulose is a polysaccharide - a long chain of sugars joined together - usually found in plants and is the main component of paper and certain textiles such as cotton.

It is already being used for a number of different medical applications, including wound dressings, but this is the first time it has been proposed for creating skeletal muscle tissue.

Tunicates grow on rocks and man-made structures in coastal waters around the world.

Cellulose extracted from tunicates is particularly well suited for making muscle tissue due to its unique properties.

University of Manchester academics Dr Stephen Eichhorn and Dr Julie Gough, working with PhD student James Dugan, chemically extract the cellulose in the form of nanowhiskers. One nanometre is one billionth of a metre and these minute whiskers are only 10s of nanometres wide - far thinner than a human hair.

When aligned and parallel to each other, they cause rapid muscle cell alignment and fusion.

The method is both simple and relatively quick, which could lead to doctors and scientists having the ability to create the normal aligned architecture of skeletal muscle tissue.

This tissue could be used to help repair existing muscle or even grow muscle from scratch.

"Cellulose is being looked at very closely around the world because of its unique properties, and because it is a renewable resource, but this is the first time that it has been used for skeletal muscle tissue engineering applications," said Eichhorn.

"There is potential for muscle precision engineering, but also for other architecturally aligned structures such as ligaments and nerves," added Eichhorn.

Source: ANI

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