China to perform world's first human genetic editing trial for lung cancer

Posted on:03 Aug 2016 18:32:21

China to perform world's first human genetic editing trial for lung cancer
03 August 2016 Current Affairs GK: A group of Chinese scientists will be performing the world’s first genetic editing trial on humans in August 2016. The trial will be done in an attempt to find a cure for lung cancer.

A team led by Dr. Lu You at Sichuan University’s West China Hospital in Chengdu received approval to carry out the trial from the hospital’s review board on 6 July 2016.

The world’s first genetic editing trial on humans will be based on CRISPR–Cas9 technique.

CRISPR technology lets scientists selectively edit genome parts and substitute them with novel DNA fragments.

Cas9 is an enzyme that has the capacity to edit DNA.

The genes undergo modification for the better via this procedure. A lot of cutting and pasting takes place at the genetic level through the technique.

There will be 10 volunteers who will all be lung cancer patients.

The CRISPR-Cas9 gene editing will last between two and three months. However, the trial still could go on for 365 days or more.

T cells will be extracted from the blood of the patients. The gene that stored PD-1 protein will be deleted. The process normally limits the cells’ capacity to trigger an immune response. Now, the edited cells will be cultured in the lab after their reintroduction in the patients’ blood. This will start the immune response, which will kill the lung cancer tumours.

 

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