Integrated PCR amplification and detection processes on a Lab-on-Chip platform: a new advanced solution for molecular diagnostics.
Clin Chem Lab Med
; 48(3): 329-36, 2010 Mar.
Article
en En
| MEDLINE
| ID: mdl-20020819
ABSTRACT
BACKGROUND:
Several microdevices have been developed to perform only a single step of a genotyping process, such as PCR or detection by probe hybridization. Here, we describe a Lab-on-Chip (LoC) platform integrating a PCR amplification microreactor with a customable microarray for the detection of sequence variations on human genomic DNA.METHODS:
Preliminary work was focused on developing the single analytical steps including PCR and labeling strategies of the amplified product by conventional reference systems. The optimized protocols included a 14 forwardreverse primer ratio for asymmetric PCR, and Cy5-dCTP multiple incorporation for the generation of a labeled PCR product to be hybridized to complementary probes bound to the chip surface.RESULTS:
Final conditions were applied to the fully integrated LoC platform for the detection of the IVSI-110 G > A mutation in the human beta-globin (HBB) gene associated with beta-thalassemia, used as a model of genetic application, allowing for correct genotyping of 25 samples that were heterozygous, homozygous or wild-type for this mutation.CONCLUSIONS:
The overall results show that the present platform is very promising for rapid identification of DNA sequence variations in an integrated, cost effective and convenient silicon chip format.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Reacción en Cadena de la Polimerasa
/
Técnicas de Diagnóstico Molecular
/
Dispositivos Laboratorio en un Chip
Tipo de estudio:
Diagnostic_studies
Límite:
Humans
Idioma:
En
Revista:
Clin Chem Lab Med
Asunto de la revista:
QUIMICA CLINICA
/
TECNICAS E PROCEDIMENTOS DE LABORATORIO
Año:
2010
Tipo del documento:
Article
País de afiliación:
Italia