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Analysis of Apoptosis in Zebrafish Embryos by Whole-mount Immunofluorescence to Detect Activated Caspase 3
Published on: December 20, 2013
The novel Indole-3-formaldehyde (2-AITFEI-3-F) is involved in processes of apoptosis induction?
Mojgan Noroozi Karimabad1, Mehdi Mahmoodi2, Abdollah Jafarzadeh3
1Molecular Medicine Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran.
Aim And Objectives:
Balancing between Bax and Bcl-2 plays critical roles in both proliferation and self-renewal activation of cancer cells. Indole-3-formaldehyde derivatives limit the growth and facilitate cell death in different cell systems. In this study, we introduced a novel indole derivative (2-AITFEI-3-F) with tendency to facilitate apoptosis in NB4 line in comparison to basal Indole-3-formaldehyde (I3F).
Methods:
The NB4 cells were cultured in RPMI1640 medium contained 2-AITFEI-3-F and I3F (15.12-1000μg/mL) for 24, 48 and 72h. Inhibition of cell proliferation was assessed by trypan blue staining technique and MTT assay. The fold changes of Bax/Bcl-2 expression against β-actin were determined by real-time-PCR technique. Western blotting analysis was also applied for evaluating the expression of Bax and Bcl2 at protein level. Data were analyzed by student t and repeated measure tests. Differences were considered significant if (P<0.01).
Results:
There was a significant difference in cell viability, when various concentrations of 2-AITFEI-3-F (but similar to I3F) were used for 24, 48 and 72h in comparison to I3F regarding the cellular viability (P<0.05). Real time PCR and Western blotting analysis indicated that the gene and protein expression level of Bcl-2 down-regulated while Bax was up-regulated in compare to untreated control cells and cells treated with I3F (P<0.01).
Conclusion:
According to these findings, the novel indole derivative 2-AITFEI-3-F probably triggered apoptosis of NB4 cells by modulating Bax/Bcl-2 ratio. Furthermore, the 2-AITFEI-3-F had markedly displayed anti-cancer activity than I3F.
Insights
A novel indole derivative, 2-AITFEI-3-F, effectively triggers apoptosis in NB4 cancer cells by modulating the Bax/Bcl-2 ratio. This compound demonstrates superior anti-cancer activity compared to Indole-3-formaldehyde (I3F).
Area of Science:
- Molecular Biology
- Cancer Research
- Pharmacology
Background:
- The balance between pro-apoptotic (Bax) and anti-apoptotic (Bcl-2) proteins is crucial for cancer cell proliferation and survival.
- Indole-3-formaldehyde derivatives have shown potential in limiting cancer cell growth and inducing cell death.
Purpose of the Study:
- To investigate the anti-cancer effects of a novel indole derivative, 2-AITFEI-3-F, on NB4 cells.
- To compare the efficacy of 2-AITFEI-3-F with the basal Indole-3-formaldehyde (I3F) in inducing apoptosis.
Main Methods:
- NB4 cells were treated with varying concentrations of 2-AITFEI-3-F and I3F for 24, 48, and 72 hours.
- Cell proliferation was assessed using trypan blue staining and MTT assays.
- Bax and Bcl-2 expression levels were quantified at both gene (real-time PCR) and protein (Western blotting) levels.
Main Results:
- 2-AITFEI-3-F significantly reduced cell viability in NB4 cells, outperforming I3F.
- Treatment with 2-AITFEI-3-F led to a significant downregulation of Bcl-2 and upregulation of Bax expression compared to controls and I3F treatment.
- These changes in Bax/Bcl-2 ratio were observed at both mRNA and protein levels.
Conclusions:
- The novel indole derivative 2-AITFEI-3-F effectively induces apoptosis in NB4 cells, likely by modulating the Bax/Bcl-2 ratio.
- 2-AITFEI-3-F exhibits more potent anti-cancer activity than Indole-3-formaldehyde (I3F).
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