Germs may play a role in the development of type 1 diabetes 0%/100% 166

Germs may play a role in the development of type 1 diabetes

Written by Aravind   |   Posted: 05/17/2016 04:36 PM IST

Killer T-cells, a type of white blood cell that normally protects us from germs, play a major part in type 1 diabetes by destroying insulin producing cells, known as beta cells. A new research suggests that germs may play a role in the development of type 1 diabetes by triggering the body's immune system to destroy the cells that produce insulin.

"Killer T-cells are extremely effective at killing off germs, but when they mistakenly attack our own tissues, the effects can be devastating," said Cardiff University's Professor Andy Sewell, lead author of the study.

"During type 1 diabetes, killer T-cells are thought to attack pancreatic beta cells. These cells make the insulin that is essential for control of blood sugar levels. When beta cells are destroyed, patients have to inject insulin every day to remain healthy," said Sewell.

"Killer T-cells sense their environment using cell surface receptors that act like highly sensitive fingertips, scanning for germs," said Dr David Cole from Cardiff University.

"However, sometimes these sensors recognise the wrong target and the killer T-cells attack our own tissue. We and others, have shown this is what happens during type 1 diabetes, when killer T-cells target and destroy beta cells. We identified part of a bug that turns on killer T-cells so they latch onto beta cells. This finding sheds new light on how these killer T-cells are turned into rogues, leading to the development of type 1 diabetes," said Cole.

By Premji

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Tags : type 1 diabetes  killer T-cells  insulin  Cardiff University  

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