KAISO inhibition: an atomic insight
Naveed Anjum Chikan1, Bhavaniprasad Vipperla
1a Medical Biotechnology Division, School of Bio Sciences and Technology , VIT University , Vellore 632014 , Tamilnadu , India.
Abstract:
In today's world, the pursuit of a novel anti-cancer agent remains top priority because of the fact that the global burden of this malady is continuously increasing. Our work is no different from others in searching for new therapeutic solutions. To achieve this, we are looking into Epigenetics, the phenomenon governed by hypermethylation and hypomethylation of tumor suppressor genes and oncogenes, respectively. Our target for this study is an important intermediary methyl-CpG binding protein named kaiso. In our study, we have used the X-ray crystallographic structure of Kaiso for virtual screening and molecular dynamics simulations to study the binding modes of possible inhibitors. The C2H2 domain comprising LYS539 was used for screening the inter bio screen Database having 48,531 natural compounds. Our approach of using computer-aided drug designing methods helped us to remove the execrable compounds and narrowed our focus on a selected few for molecular simulation studies. The top ranked compound (chem. ID 28127) exhibited the highest binding affinity and was also found to be stable throughout the 20 ns timeframe. This compound is therefore a good starting point for developing strong inhibitors.
Insights
Researchers identified a promising natural compound (chem. ID 28127) as a potential anti-cancer agent. This compound targets the kaiso protein, a key player in epigenetics, showing high binding affinity and stability in simulations.
Area of Science:
- Oncology
- Epigenetics
- Computational Chemistry
Background:
- The increasing global cancer burden necessitates novel therapeutic strategies.
- Epigenetics, involving gene methylation, plays a crucial role in cancer development.
- Kaiso, a methyl-CpG binding protein, is a significant target in epigenetic cancer research.
Purpose of the Study:
- To identify novel inhibitors targeting the kaiso protein using computational methods.
- To explore the potential of natural compounds as anti-cancer agents.
- To investigate the binding interactions of potential inhibitors with the kaiso protein.
Main Methods:
- Virtual screening of a natural compound database (48,531 compounds) against the X-ray crystallographic structure of kaiso.
- Focusing on the C2H2 domain and LYS539 residue for inhibitor screening.
- Utilizing computer-aided drug design (CADD) for compound selection and molecular dynamics (MD) simulations (20 ns).
Main Results:
- Computer-aided drug design effectively filtered out unsuitable compounds.
- The top-ranked compound (chem. ID 28127) demonstrated the highest binding affinity to kaiso.
- Compound 28127 remained stable during the 20 ns molecular dynamics simulation.
Conclusions:
- Compound 28127 shows significant potential as a starting point for developing potent anti-cancer inhibitors.
- This study highlights the efficacy of CADD in identifying novel epigenetic drug candidates.
- Targeting kaiso offers a promising avenue for novel cancer therapies.
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