Related Experiment Video
Updated: Aug 6, 2025

A Rapid Screening Workflow to Identify Potential Combination Therapy for GBM using Patient-Derived Glioma Stem Cells
Published on: March 28, 2021
Combination of Caffeic Acid Phenethyl Ester and Crocin Realign Potential Molecular Markers in U87-MG Glioma Cells
Ashaq Hussain Mir1, Mir Khurshid Iqbal1, Mujeeb Zafar Banday2
1Department of Biotechnology, University of Kashmir, Srinagar, Jammu and Kashmir, India.
Background:
Glial tumors are the most common primary malignant central nervous system tumors. They are hard to treat, not only because of the deregulation in multiple pathways but also because they are not contained in a well-defined mass with clear borders. The use of a single therapeutic agent to target gliomas has yielded unsatisfactory results.
Objective:
A combination of molecules targeting multiple pathways may prove to be a better alternative.
Methods:
The effect of caffeic acid phenethyl ester and crocin on the proliferation and death of U87-MG cells over a concentration range was analyzed using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and lactate dehydrogenase assays. A colony formation assay was used to measure the effect of caffeic acid phenethyl ester and crocin on contact inhibition and anchorage independence ability of U87-MG cells. Furthermore, apoptosis in U87-MG cells was analyzed by propidium iodide assay. Real-time polymerase chain reaction and Western blotting were performed to determine the expression level of p53, epidermal growth factor receptor, and proliferating cell nuclear antigen.
Results:
Caffeic acid phenethyl ester and crocin when used in combination present an anticancer potential for glioma. These molecules, in combination, inhibit proliferation and induce apoptosis in U87-MG glioma cells. Our results provide evidence that combination treatment realigns the expression paradigm of p53, epidermal growth factor receptor, and proliferating cell nuclear antigen in cotreated U87-MG cells.
Conclusions:
The combination of caffeic acid phenethyl ester and crocin led to inhibition in glioma cell proliferation and might prove to be an effective adjunct to the therapies in vogue.
Insights
Caffeic acid phenethyl ester and crocin combination therapy shows promise for treating glioma by inhibiting cancer cell proliferation and inducing cell death. This novel approach may enhance existing glioma treatments.
Area of Science:
- Neuro-oncology
- Molecular Biology
- Pharmacology
Background:
- Glial tumors are aggressive primary malignant central nervous system tumors.
- Their diffuse nature and pathway deregulation make them difficult to treat with single agents.
- Current therapeutic strategies for gliomas have shown limited success.
Purpose of the Study:
- To investigate the combined anticancer effects of caffeic acid phenethyl ester and crocin on U87-MG glioma cells.
- To evaluate the impact of this combination on cell proliferation, apoptosis, and key protein expression.
Main Methods:
- Cell viability and death assays (MTT, LDH) were used to assess drug effects.
- Colony formation assays measured effects on anchorage-independent growth and contact inhibition.
- Apoptosis was analyzed via propidium iodide staining.
- Real-time PCR and Western blotting determined expression levels of p53, EGFR, and PCNA.
Main Results:
- Combined caffeic acid phenethyl ester and crocin inhibited U87-MG cell proliferation and induced apoptosis.
- The combination treatment modulated the expression of p53, epidermal growth factor receptor (EGFR), and proliferating cell nuclear antigen (PCNA).
Conclusions:
- Caffeic acid phenethyl ester and crocin exhibit significant anticancer potential against glioma cells in vitro.
- This combination therapy demonstrates promise as an adjunct to conventional glioma treatments.

