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the application of genetic engineering to the transplantation of genes into human cells in order to cure a disease caused by a genetic defect, as a missing enzyme.
noun
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the replacement or alteration of defective genes in order to prevent the occurrence of such inherited diseases as haemophilia. Effected by genetic engineering techniques, it is still at the experimental stage
"Collins English Dictionary — Complete & Unabridged"
2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986
© HarperCollins Publishers 1998, 2000, 2003, 2005,
2006, 2007, 2009, 2012
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The treatment of a disorder or disease, especially one caused by the inheritance of a defective gene, by replacing defective genes with healthy ones through genetic engineering.
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A promising technology that involves replacing a defective gene in the body with a healthy one. This can be done by removing cells from the body, using genetic engineering techniques to change defective sequences in the DNA, and then reinserting the cells. This technique has been carried out successfully, for example, on bone marrow cells, in which defective cells were successfully replaced with healthy, genetically engineered cells. Scientists hope to find an agent, such as a therapeutic virus, that will be able to correct defective DNA in situ. (See cloning vector.)
Etymology
First recorded in 1970–75
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any
opinions expressed do not reflect the views of Dictionary.com.
"She was given the gene therapy. We were told she may never walk, talk or eat... she was sent home with us and five machines. It was desperate."
From
BBC
Tirupathi said gene therapy was life-changing.
From
BBC
"Whenever you cut DNA, there's a risk of cancer. And if you're doing a gene therapy for a lifelong disease, that's a bad kind of risk," Prof. Crossley says.
From
Science Daily
"But if we can do gene therapy that doesn't involve snipping DNA strands, then we avoid these potential pitfalls."
From
Science Daily
In 2021, a life-changing gene therapy drug called Zolgensma was approved by the NHS to treat babies with the disease.
From
BBC
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.