Ovarian cancer remains one of the most formidable challenges in oncology, often dubbed the “silent killer” due to its subtle symptomatology and late-stage diagnosis. With incidence rates at approximately 11.2 per 100,000 women annually and mortality close behind at 7.6 per 100,000, the urgency to identify innovative therapeutic strategies is high. Traditional interventions—primarily surgery combined with chemoradiotherapy—frequently falter because of the overwhelming development of drug resistance, especially against platinum-based chemotherapy. This resistance precipitates recurrent disease and poor long-term survival outcomes. Investigators are increasingly turning their attention to naturally derived compounds with multifaceted mechanisms, seeking adjuncts that can effectively complement and augment existing treatments.
One promising candidate in this arena is resveratrol, a polyphenolic compound found abundantly in grapes and peanuts. Resveratrol (RVT) has garnered remarkable interest owing to its broad spectrum of biological activities and relative safety profile. Its molecular architecture, characterized by three phenolic hydroxyl groups in the trans-stilbene configuration, affords it the ability to engage various protein targets through hydrogen bonding, hydrophobic forces, and π-π stacking interactions. Such molecular versatility underpins RVT’s therapeutic potential across multiple pathophysiological pathways implicated in ovarian cancer pathogenesis.
Recent in silico molecular docking analyses have shed light on RVT’s affinity for several ovarian cancer-associated proteins, revealing binding energies indicative of strong interaction potentials. Notably, RVT stimulates SIRT1, a NAD+-dependent deacetylase frequently upregulated in ovarian tumors, by forming critical hydrogen bonds with key residues such as Asp298 and Lys444. Activation of SIRT1 has been linked to enhanced cell survival regulation, possibly improving clinical outcomes. Concurrently, RVT inhibits phospholipase A2 (PLA2) enzymes that mediate inflammatory and lipid signaling processes, engaging hydrophobic residues Ile19 and Phe5, which may decelerate tumor progression.
Further docking studies highlight RVT’s selective modulation of estrogen receptor alpha (ERα), a pivotal nuclear receptor governing proliferation in hormone-responsive ovarian cancer cells. RVT’s interaction involves π-π stacking with Phe404 and hydrogen bond formation with Glu353 and Leu387, potentially altering receptor-mediated transcriptional programs. Moreover, activation of peroxisome proliferator-activated receptor gamma (PPAR-γ), a transcription factor implicated in cell differentiation and apoptosis, is also initiated by RVT, which binds hydrophobically to residues Phe264 and Ile281. This engagement induces G1 phase cell cycle arrest, disrupting malignant cell proliferation.
At the therapeutic axis, RVT exerts robust anti-inflammatory actions by downregulating classic inflammatory mediators such as interleukin-6 (IL-6), prostaglandin E2 (PGE2), and tumor necrosis factor-alpha (TNF-α). This is achieved primarily through inhibition of NF-κB activation pathways and suppression of lipopolysaccharide (LPS)-stimulated signal transduction, culminating in reduced expression of cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS). Such attenuation of pro-inflammatory cascades may abrogate the inflammatory microenvironment that fosters ovarian tumor growth and metastasis.
RVT’s antioxidant properties also warrant attention. It effectively scavenges reactive oxygen species (ROS), thereby mitigating oxidative stress-induced ovarian damage, notably the toxicity associated with cisplatin chemotherapy. Intriguingly, RVT imposes a selective oxidative cytotoxicity on ovarian cancer stem cells by paradoxically increasing ROS levels within these subpopulations. This differential modulation emphasizes RVT’s potential to eradicate resistant cancer-initiating cells while preserving normal ovarian function, a balance often difficult to achieve in oncologic therapeutics.
Cell cycle regulation remains a cornerstone of RVT’s antiproliferative efficacy. By modulating signaling pathways such as AKT/GSK-3β and ERK1/2, RVT downregulates cyclin D1 expression, leading to G1 phase arrest. Additionally, it blocks COX-2 enzymatic activity and induces apoptosis via the p53 tumor suppressor pathway. This multi-layered interference with cell cycle machinery and survival signaling underscores the compound’s multitargeted mode of action against ovarian malignancies.
Autophagy, a critical cellular homeostatic process, is another dimension modulated by RVT. The compound enhances autophagic flux through upregulation of Beclin-1 and cleavage of LC3 proteins, essential components of the autophagy machinery. Importantly, in cisplatin-resistant ovarian cancer cells, RVT restores autophagy-mediated apoptosis by inhibiting the Hedgehog (Hh) signaling pathway, thereby re-sensitizing cells to chemotherapy. Such modulation of autophagy pathways offers a compelling approach to overcoming drug resistance—a major hurdle in clinical oncology.
Despite these robust preclinical findings, the clinical translation of RVT is constrained by its inherently low bioavailability. To circumvent this limitation, researchers have devised innovative delivery platforms such as nanoparticles incorporating zinc oxide, bovine serum albumin, or human serum albumin, which enhance cellular uptake and augment tumor targeting. Polymeric micelles co-loaded with RVT and other phytochemicals like curcumin or quercetin have demonstrated synergistic effects, attenuating chemotherapy-induced cardiotoxicity while amplifying anticancer efficacy. Theranostic innovations employing RVT-gold nanoparticles facilitate real-time fluorescence and computed tomography imaging combined with therapeutic delivery, exemplifying the convergence of diagnostics and therapeutics.
Moreover, RVT contributes to chemo- and radiosensitization strategies essential for overcoming multidrug resistance. It effectively inhibits P-glycoprotein and the MDR1 gene, crucial mediators of chemoresistance. When combined with platinum compounds, RVT enhances cisplatin cytotoxicity by a factor of over three through the downregulation of NF-κB activity. As a radioprotective agent, RVT mitigates radiation-induced DNA damage, preserves salivary gland function, and sensitizes tumor cells to radiation by activating regulatory pathways such as the REG III and inducing prolonged G2/M phase arrest.
While direct clinical trials evaluating RVT in ovarian cancer are currently lacking, its benefits have been documented in related ovarian metabolic disorders. For example, interventions in polycystic ovary syndrome (PCOS) have resulted in reduced fasting glucose, insulin levels, and attendant symptoms such as hirsutism, alongside improved menstrual regularity. In cases of ovarian insufficiency, RVT supplementation has enhanced endocrine function and overall quality of life, suggesting a favorable safety profile and systemic benefits.
Looking ahead, the path to integrating RVT into mainstream oncologic care requires rigorous pharmacokinetic profiling and formulation standardization to ensure consistent bioavailability and therapeutic dosing. Large-scale clinical trials are paramount to establish efficacy unequivocally in ovarian cancer populations. Additionally, the fusion of advanced imaging modalities such as magnetic resonance imaging (MRI) with RVT-based interventions could enable dynamic, real-time treatment monitoring, optimizing therapeutic regimens. Network pharmacology approaches stand poised to unravel the intricate, multi-pathway interactions mediated by RVT, offering deeper mechanistic insights and guiding personalized therapy.
In conclusion, resveratrol emerges as a compelling multi-targeted agent with significant preclinical evidence supporting its therapeutic potential in ovarian cancer. It navigates complex biological landscapes encompassing inflammation, oxidative stress, proliferation, cell cycle control, and autophagic processes, while addressing the vexing problem of drug resistance through sensitization mechanisms. Novel nanoformulations advance its clinical viability by overcoming bioavailability challenges, and its dual role as a radiosensitizer enhances the efficacy of radiotherapy. The translation from bench to bedside, underpinned by meticulous pharmacokinetic studies and robust clinical trials, could revolutionize adjunctive ovarian cancer therapy, offering hope for improved survival and quality of life among patients facing this formidable malignancy.
Subject of Research: Molecular interactions and therapeutic effects of resveratrol in ovarian cancer.
Article Title: Molecular Docking of Resveratrol with Ovarian Cancer-associated Proteins and Its Therapeutic Benefits
News Publication Date: 30-Dec-2025
Web References:
https://www.xiahepublishing.com/journal/fim
http://dx.doi.org/10.14218/FIM.2025.00025
Keywords: Ovarian cancer, resveratrol, molecular docking, SIRT1, PLA2, estrogen receptor alpha, PPAR-γ, anti-inflammatory, antioxidant, autophagy, drug resistance, nanoformulations, chemosensitization, radiosensitization
Tags: drug resistance in ovarian cancerhydrogen bonding in drug-protein interactionin silico cancer drug screeningnatural compounds in cancer therapyovarian cancer protein targetsovarian cancer treatment strategiespolyphenolic compounds in oncologyresveratrol and chemoradiotherapyresveratrol anticancer mechanismsresveratrol molecular dockingtherapeutic potential of resveratroltrans-stilbene molecular structure
