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Published on: November 2, 2013
Differentially regulated genes in MEN1-transfected BON cells using RT-differential display and oligonucleotide
Juan R Lopez-Egido1, Yi Wang, Malin Grönberg
1Department of Medical Sciences, University Hospital, 751 85 Uppsala, Sweden.
Background:
Apart from inactivation of the MEN1 gene, the molecular mechanisms involved in tumorigenesis of the endocrine organs and MEN1-associated non-endocrine lesions remain unknown.
Materials And Methods:
In order to learn more about down-stream effects upon MEN1 gene inactivation BON1 cells were transfected with a MEN1 gene construct (BON/M1C), and both RT-differential display and oligonucleotide microarrays were performed.
Results:
Three genes (SMARCC1, OVCA2 and SRp55) found to be differentially regulated on differential display were corroborated by northern blots on cell line RNA when comparing MEN1 transfected cells with control (empty vector transfection). When comparing two different passages of BON/M1C with two passages of vector control using oligonucleotide microarrays, 25 up-regulated genes and 64 down-regulated genes could be found using a cut-off of >or=1.6 times.
Conclusion:
These findings might contribute to the understanding of the molecular pathways involved in MEN1 tumorigenesis, and may also provide knowledge of genes involved in sporadic endocrine tumorigenesis.
Insights
Researchers investigated the downstream effects of MEN1 gene inactivation in endocrine tumors. This study identified differentially regulated genes, offering insights into MEN1 tumorigenesis and sporadic endocrine tumor development.
Area of Science:
- Endocrinology
- Molecular Biology
- Oncology
Background:
- The molecular mechanisms driving endocrine organ and MEN1-associated non-endocrine lesion tumorigenesis, beyond MEN1 gene inactivation, are largely unknown.
- Understanding these mechanisms is crucial for developing targeted therapies.
Purpose of the Study:
- To elucidate the downstream molecular effects of MEN1 gene inactivation.
- To identify novel genes and pathways involved in MEN1-related tumorigenesis.
Main Methods:
- BON1 cells were transfected with a MEN1 gene construct (BON/M1C).
- RT-differential display and oligonucleotide microarrays were employed to analyze gene expression changes.
- Northern blot analysis was used to corroborate findings from differential display.
Main Results:
- Differential expression of three genes (SMARCC1, OVCA2, SRp55) was confirmed via northern blot.
- Oligonucleotide microarrays revealed 25 upregulated and 64 downregulated genes in MEN1-transfected cells compared to controls.
- A fold-change cut-off of >=1.6 was used to identify differentially regulated genes.
Conclusions:
- The identified genes may play significant roles in the molecular pathways of MEN1 tumorigenesis.
- These findings could contribute to understanding sporadic endocrine tumorigenesis.
- This research provides a foundation for further investigation into MEN1-associated cancers.
