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Cytotoxic and Apoptotic Impacts of Ceranib-2 on RAW 264.7 Macrophage Cells
Filiz Susuz Alanyalı1, Osman Algı1
1Department of Biology, Faculty of Science, Eskisehir Technical University, Eskişehir, Turkey.
Background:
Many ceramidase inhibitors have been developed and identified as potential treatment agents for various types of tumors in the last several decades. In recent years, their therapeutic potential against tumors has gained great attention. Inhibition of ceramidase is r eportedly related to apoptosis and cytotoxicity in macrophages, which are closely related to tumor development and progression. However, whether and how ceranib-2, a novel ceramidase inhibitor, can exert its cytotoxic and apoptotic effects on RAW 264.7, a macrophage cell line established from a tumor in a male mouse induced with the Abelson murine leukemia virus, remains unknown.
Objective:
In this study, we aimed to investigate whether and how ceranib-2 can exert cytotoxic, antiproliferative, and apoptotic effects on the RAW264.7 macrophages.
Methods:
We performed the MTT assay, Annexin V staining assay, and confocal microscopy to detect the cytotoxicity, apoptosis, and morphological changes, respectively, in the RAW264.7 cells.
Results:
The viability of RAW264.7 cells treated with ceranib-2 was decreased as the doses of ceranib-2 increased at 24 h and 48 h due to apoptosis resulting from ceranib-2-reduced integrity of the mitochondrial membrane. Moreover, morphological changes were observed in these ceranib-2 exposed cells, further indicating the role of ceranib-2 in inducing apoptosis in these cells.
Conclusion:
Ceranib-2 is cytotoxic to RAW 264.7 macrophages and can induce apoptosis in these cells.
Insights
Ceranib-2, a novel ceramidase inhibitor, demonstrates significant cytotoxic and apoptotic effects on RAW 264.7 macrophages. This finding highlights its potential as a therapeutic agent targeting tumor-associated macrophages.
Area of Science:
- Biochemistry
- Cell Biology
- Immunology
Background:
- Ceramidase inhibitors are investigated for cancer treatment.
- Inhibition of ceramidase impacts macrophage apoptosis and cytotoxicity, influencing tumor progression.
- The specific effects of ceranib-2 on RAW 264.7 macrophages were previously unknown.
Purpose of the Study:
- To determine if ceranib-2 induces cytotoxic and apoptotic effects in RAW 264.7 macrophages.
- To elucidate the mechanisms by which ceranib-2 affects these cells.
Main Methods:
- MTT assay to assess cytotoxicity.
- Annexin V staining to detect apoptosis.
- Confocal microscopy for observing morphological changes.
Main Results:
- Ceranib-2 treatment decreased RAW 264.7 cell viability in a dose-dependent manner.
- Apoptosis was induced by ceranib-2, evidenced by reduced mitochondrial membrane integrity.
- Morphological alterations in cells further supported ceranib-2's role in inducing apoptosis.
Conclusions:
- Ceranib-2 exhibits cytotoxicity towards RAW 264.7 macrophages.
- Ceranib-2 effectively induces apoptosis in these macrophage cells.
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