Gene therapy is a method of curing the disease at genetic level.It is very helpful in treating some genetic disorders.Cells, tissue, or even whole individuals (when germ-line cell therapy becomes available) modified by gene therapy are considered to be transgenic or genetically modified. Gene therapy is the introduction of genes into existing cells to prevent or cure a wide range of diseases.It is very important method or way to cure diseases at genetic level.Cystic fibrosis is a best disease to cure by the help of gene therapy-based treatment.

Gene therapy may be classified into two types:

  • Somatic gene therapy
  • Germ line gene therapy