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A rapid RT-PCR based method to isolate complementary DNA fragments flanking retrovirus integration sites
P J Valk1, M Joosten, Y Vankan
1Institute of Hematology, Erasmus University Rotterdam, The Netherlands.
Nucleic Acids Research
|October 23, 1997
Summary
Identifying viral insertion sites and oncogenes in mouse leukemia is challenging. This study introduces a rapid PCR method to quickly find these sites and novel proto-oncogenes, aiding leukemia research.
Area of Science:
- Molecular Biology
- Oncology
- Virology
Background:
- Proto-oncogene activation is common in retroviral myeloid leukemias.
- Identifying common virus integration sites (VISs) and oncogenes is difficult and slow.
Purpose of the Study:
- To develop a rapid and simple PCR-based method for identifying VISs and novel proto-oncogenes.
- To streamline the process of oncogene discovery in retroviral leukemias.
Main Methods:
- Selective isolation of complementary DNA fragments adjacent to retrovirus integration sites.
- Utilized reverse transcriptase (RT) reaction with an oligo(dT)-adaptor primer.
- Employed PCR with adaptor sequence and retrovirus long terminal repeat (LTR) specific primer.
Main Results:
- Successfully established a rapid PCR-based procedure.
- Facilitated the identification of VISs and novel proto-oncogenes.
- Isolated multiple chimeric cDNA fragments for further analysis (Southern/Northern blot).
Conclusions:
- The new method significantly simplifies and accelerates the identification of VISs and oncogenes.
- This technique is valuable for studying oncogene activation in retroviral-induced leukemias.
- Enables efficient discovery of novel proto-oncogenes involved in cancer development.