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Updated: Feb 5, 2026
Assessing Specificity of Anticancer Drugs In Vitro
Published on: March 23, 2016
A Novel Triazole Derivative Drug Presenting In Vitro and In Vivo Anticancer Properties
Ricardo Imbroisi Filho1, Daniel T G Gonzaga2, Thainá M Demaria3
1Laboratorio de Oncobiologia Molecular (LabOMol), Departamento de Biotecnologia Farmaceutica, Faculdade de Farmacia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-902, Brazil.
Background:
Cancer is a major cause of death worldwide, despite many different drugs available to treat the disease. This high mortality rate is largely due to the complexity of the disease, which results from several genetic and epigenetic changes. Therefore, researchers are constantly searching for novel drugs that can target different and multiple aspects of cancer.
Experimental:
After a screening, we selected one novel molecule, out of ninety-four triazole derivatives, that strongly affects the viability and proliferation of the human breast cancer cell line MCF-7, with minimal effects on non-cancer cells. The drug, named DAN94, induced a dose-dependent decrease in MCF-7 cells viability, with an IC50 of 3.2 ± 0.2 µM. Additionally, DAN94 interfered with mitochondria metabolism promoting reactive oxygen species production, triggering apoptosis and arresting the cancer cells on G1/G0 phase of cell cycle, inhibiting cell proliferation. These effects are not observed when the drug was tested in the non-cancer cell line MCF10A. Using a mouse model with xenograft tumor implants, the drug preventing tumor growth presented no toxicity for the animal and without altering biochemical markers of hepatic function.
Results And Conclusion:
The novel drug DAN94 is selective for cancer cells, targeting the mitochondrial metabolism, which culminates in the cancer cell death. In the end, DAN94 has been shown to be a promising drug for controlling breast cancer with minimal undesirable effects.
Insights
A new drug, DAN94, selectively targets breast cancer cells by disrupting mitochondrial metabolism, leading to cancer cell death. This promising compound shows minimal effects on healthy cells and no toxicity in animal models.
Area of Science:
- Oncology
- Pharmacology
- Molecular Biology
Background:
- Cancer remains a leading global cause of death due to its complex genetic and epigenetic nature.
- Existing treatments face challenges, necessitating the development of novel drugs targeting multiple cancer facets.
Purpose of the Study:
- To identify and characterize a novel molecule with selective anti-cancer properties.
- To evaluate the efficacy and safety of the novel drug candidate, DAN94.
Main Methods:
- Screening of 94 triazole derivatives identified DAN94 for its potent effects on the MCF-7 human breast cancer cell line.
- Assessed DAN94's impact on cell viability, proliferation, mitochondrial metabolism, apoptosis, and cell cycle progression.
- Evaluated DAN94's efficacy and toxicity in a mouse xenograft tumor model and assessed hepatic function markers.
Main Results:
- DAN94 demonstrated significant dose-dependent cytotoxicity against MCF-7 cells (IC50 = 3.2 ± 0.2 µM) with minimal impact on non-cancerous MCF10A cells.
- The drug induced reactive oxygen species production, apoptosis, and G1/G0 cell cycle arrest, inhibiting proliferation.
- In vivo studies showed DAN94 prevented tumor growth without observable animal toxicity or altered hepatic function.
Conclusions:
- DAN94 exhibits selectivity for cancer cells, targeting mitochondrial metabolism to induce cell death.
- The novel drug DAN94 represents a promising therapeutic candidate for breast cancer treatment with a favorable safety profile.
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