Combating oncogene activation associated with retrovirus-mediated gene therapy of X-linked severe combined immunodeficiency



Título del documento: Combating oncogene activation associated with retrovirus-mediated gene therapy of X-linked severe combined immunodeficiency
Revista: Brazilian journal of medical and biological research
Base de datos: PERIÓDICA
Número de sistema: 000350310
ISSN: 0100-879X
Autores: 1
2
Instituciones: 1Universidade de Sao Paulo, Faculdade de Medicina, Sao Paulo. Brasil
2Universidade de Sao Paulo, Instituto de Ciencias Biomedicas, Sao Paulo. Brasil
Año:
Periodo: May
Volumen: 40
Número: 5
Paginación: 601-613
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Caso clínico
Resumen en inglés A successful gene therapy clinical trial that also encountered serious adverse effects has sparked extensive study and debate about the future directions for retrovirus-mediated interventions. Treatment of X-linked severe combined immunodeficiency with an oncoretrovirus harboring a normal copy of the gc gene was applied in two clinical trials, essentially curing 13 of 16 infants, restoring a normal immune system without the need for additional immune-related therapies. Approximately 3 years after their gene therapy, tragically, 3 of these children, all from the same trial, developed leukemia as a result of this experimental treatment. The current understanding of the mechanism behind this leukemogenesis involves three critical and cooperating factors, i.e., viral integration, oncogene activation, and the function of the therapeutic gene. In this review, we will explore the causes of this unwanted event and some of the possibilities for reducing the risk of its reoccurrence
Disciplinas: Medicina
Palabras clave: Oncología,
Genética,
Retrovirus,
Mutagénesis,
Síndrome de inmunodeficiencia combinada severa,
Terapia génica
Keyword: Medicine,
Oncology,
Retrovirus,
Mutagenesis,
Severe combined immunodeficiency syndrome,
Gene therapy,
Genetics
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