Expression patterns and therapeutic implications of CDK4 across multiple carcinomas: a molecular docking and MD
Hina Qayoom1, Umar Mehraj1, Shazia Sofi1
1Department of Bioresources, School of Biological Sciences, University of Kashmir, Srinagar, J&K, 190006, India.
Abstract:
The CDKs are known to play a critical role in cell cycle regulation process. Among the different groups of CDKs, CDK4 overexpression/hyperactivation is found to be present in many cancers and a specific CDK4 inhibitor, palbociclib has been recently approved by the FDA against breast cancer. However, the treatment with palbociclib has shown many associated toxicities such as-anemia, thrombocytopenia, neutropenia, and febrile neutropenia and more. Despite the fact being FDA approved for only breast cancer and no other cancers and CDK4 being overexpressed in multiple cancers. Therefore, we in our study intend to screen two novel CDK4 inhibitors that show considerably less associated toxicities and greater therapeutic implications than palbociclib. We screened the compounds using Lipinski's rule, ADMET analysis and further analyzed the selected compounds using a virtual screening method called molecular docking and validated our results by MD simulation. We studied the expression patterns and prognostic significance of CDK4 across multiple carcinomas by using some database like UALCAN, cBioportal, and KM-Plotter.
Insights
This study identifies novel CDK4 inhibitors with reduced toxicity compared to palbociclib, offering potential new cancer therapies. These compounds show promise for treating various cancers where CDK4 is overexpressed.
Area of Science:
- Oncology
- Pharmacology
- Computational Biology
Background:
- Cyclin-dependent kinases (CDKs) are crucial for cell cycle regulation.
- CDK4 overexpression is implicated in numerous cancers, leading to FDA approval of palbociclib for breast cancer.
- Palbociclib treatment is associated with significant toxicities like anemia and neutropenia.
Purpose of the Study:
- To screen novel CDK4 inhibitors with improved safety and efficacy profiles compared to palbociclib.
- To investigate the therapeutic potential of these inhibitors in various CDK4-overexpressing carcinomas.
- To analyze CDK4 expression patterns and prognostic significance across multiple cancer types.
Main Methods:
- In silico screening using Lipinski's rule and ADMET analysis.
- Virtual screening via molecular docking and molecular dynamics (MD) simulation.
- Analysis of CDK4 expression and prognostic value using UALCAN, cBioportal, and KM-Plotter databases.
Main Results:
- Identification of two novel CDK4 inhibitors demonstrating favorable pharmacokinetic properties and binding affinity.
- Virtual screening and MD simulations confirmed the potential efficacy and stability of the selected compounds.
- CDK4 expression analysis revealed its significant role and prognostic implications in various carcinomas.
Conclusions:
- The novel CDK4 inhibitors show promise as safer and potentially more effective therapeutic agents than palbociclib.
- These findings support further preclinical and clinical development of these compounds for cancer treatment.
- Targeting CDK4 remains a viable strategy for multiple cancer types, with potential for improved patient outcomes.
Related Concept Videos
Inhibition of Cdk Activity
M-Cdk Drives Transition Into Mitosis
Cyclin-dependent kinases, or Cdks, work in concert with cyclins to control cell cycle transitions. M-Cdk, a complex of Cdk1 bound to M cyclin, is a well-known example of this coordinated control that drives the transition from the G2 to the M phase.
M cyclin...
Mitogens and the Cell Cycle
Positive Regulator Molecules
Targeted Cancer Therapies
There are several types of targeted therapies against...
Cancer-Critical Genes II: Tumor Suppressor Genes
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...


