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Updated: May 4, 2026
Functionalized Spirocyclic Heterocycle Synthesis and Cytotoxicity Assay
Published on: February 9, 2021
Synthesis and antiproliferative activity of novel selenoester derivatives
Enrique Domínguez-Álvarez1, Daniel Plano2, María Font3
1Synthesis Section, Department of Organic and Pharmaceutical Chemistry, University of Navarra, Irunlarrea 1, E-31008 Pamplona, Spain; Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, Campus, 66123 Saarbruecken, Germany.
Abstract:
A series of 31 new selenoesters were synthesized and their cytotoxic activity was evaluated against a prostate cancer cell line (PC-3). The most active compounds were also tested against three tumoural cell lines (MCF-7, A-549 and HT-29) and one non-tumour prostate cell line (RWPE-1). Thirteen compounds showed significant activity towards all tumour cells investigated, and some of them were even more potent than etoposide and cisplatin, which were used as reference drugs. Because of their pronounced potency and/or selectivity, four analogues (5, 21, 28 and 30), were selected in order to assess their redox properties related to a possible redox modulating activity. The glutathione peroxidase (GPx) assay showed slight activity for compound 30 and the 2,2-diphenyl-1-picrylhydrazyl-(DPPH) assay showed a weak activity for compounds 5 and 28. The present results revealed that analogues 5, 21, 28 and 30 might serve as a useful starting point for the design of improved anti-tumour agents.
Insights
Researchers synthesized 31 new selenoesters, identifying potent anti-cancer agents. Four promising compounds (5, 21, 28, 30) show potential as starting points for novel anti-tumour drug development.
Area of Science:
- Medicinal Chemistry
- Organic Synthesis
- Cancer Pharmacology
Background:
- Prostate cancer remains a significant health concern, necessitating the development of novel therapeutic agents.
- Selenoesters represent a class of compounds with potential cytotoxic and anti-tumour activities.
- Existing chemotherapies like etoposide and cisplatin have limitations, driving the search for alternative treatments.
Purpose of the Study:
- To synthesize and evaluate the cytotoxic activity of novel selenoester analogues against various cancer cell lines.
- To identify lead compounds with potent and selective anti-tumour effects.
- To investigate the redox properties of selected potent analogues for potential mechanism of action.
Main Methods:
- Synthesis of 31 new selenoester compounds.
- In vitro cytotoxic evaluation against prostate cancer (PC-3), breast cancer (MCF-7), lung cancer (A-549), and colorectal cancer (HT-29) cell lines.
- Assessment of redox properties using glutathione peroxidase (GPx) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) assays.
Main Results:
- Thirteen selenoester compounds exhibited significant cytotoxic activity against all tested tumour cell lines.
- Several compounds demonstrated superior potency compared to reference drugs etoposide and cisplatin.
- Four analogues (5, 21, 28, 30) were identified as particularly potent and/or selective, with preliminary redox activity noted for compounds 5, 28, and 30.
- Compound 30 showed slight glutathione peroxidase (GPx) activity, while compounds 5 and 28 exhibited weak DPPH radical scavenging activity.
Conclusions:
- The novel selenoesters possess significant anti-cancer potential, with some analogues outperforming established chemotherapeutics.
- Analogues 5, 21, 28, and 30 are promising lead compounds for further development as anti-tumour agents.
- The identified selenoesters may exert their anti-cancer effects through mechanisms involving redox modulation, warranting further investigation.
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