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Ovarian cancer (OvCa) remains the leading cause of gynecological cancer mortality, with most patients developing chemoresistance. Drug repurposing offers promising alternatives, with mebendazole (MBZ) showing anticancer activity. This study evaluates MBZ efficacy using Spectral Domain Optical Coherence Tomography (SD-OCT). We conducted longitudinal imaging of 40 wild-type (WT) and cisplatin-resistant (CPR) OVCAR8 multicellular tumor spheroids over 11 days. Four analyses were performed: volume analysis, optical attenuation analysis, uniformity analysis, and texture feature analysis. Volume analysis showed MBZ reduced spheroid growth in both groups, with greater effects in CPR-MCTs. Optical attenuation analysis revealed increased necrotic tissue ratios in treated spheroids. Uniformity analysis demonstrated MBZ targets heterogeneous tissues effectively. Texture analysis identified significant structural changes, with 866 altered features in CPR spheroids versus 124 in WT spheroids. Cell viability assays confirmed MBZ's effectiveness against standard and chemo-resistant OVCAR8 tumors. This study demonstrates SD-OCT's utility for noninvasive therapy monitoring in 3D cancer models.
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http://dx.doi.org/10.1002/jbio.202500369 | DOI Listing |
Oncogene
September 2025
Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
Resistance to platinum-based drugs and PARP inhibitors (PARPi) is the leading cause of treatment failure in epithelial ovarian cancer (EOC). This study aimed to identify resistance mechanisms shared by both. Using bioinformatic analyses, EOC tissues, primary tumor cells and organoids, and chemoresistant cell lines, we identified lymphoid enhancer-binding factor 1 (LEF1) as a candidate, whose expression was increased in both platinum-resistant and PARPi-resistant tumors.
View Article and Find Full Text PDFBull Cancer
September 2025
Département d'oncologie médicale, centre Léon-Bérard (CLB-UNICANCER), université Claude-Bernard (UCB Lyon 1), Lyon, France. Electronic address:
Granulosa cell tumors (GCTs) are rare ovarian neoplasms, accounting for 2-5% of all ovarian cancers. Two histological types have been described: juvenile (JGCT) and adult (AGCT), the latter accounting for around 95% of the GCTs. AGCTs are mostly diagnosed at an early stage and commonly have a good prognosis.
View Article and Find Full Text PDFJ Immunother Cancer
September 2025
Cellular Immunotherapy Program, Massachusetts General Hospital, Boston, Massachusetts, USA
Background: Tumor heterogeneity and antigen escape are mechanisms of resistance to chimeric antigen receptor (CAR)-T cell therapy, especially in solid tumors. Targeting multiple antigens with a unique CAR construct could be a strategy for a better tumor control than monospecific CAR-T cells on heterogeneous models. To overcome tumor heterogeneity, we targeted mesothelin (meso) and Mucin 16 (MUC16), two antigens commonly expressed in solid tumors, using a tandem CAR design.
View Article and Find Full Text PDFAdv Med Sci
September 2025
Department of Biology, Lund University, Lund, Sweden.
Purpose: Ovarian cancer ranks as a gynecological malignancy with poor prognosis, specifically if detected late. Primary treatment includes cytoreductive surgery and adjuvant chemotherapy with curative intent. Local anesthetics (LA) administered in the perioperative period may potentially impact patient outcome by several mechanisms.
View Article and Find Full Text PDFCancer Genet
September 2025
Department of Pathology, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul 07441, Republic of Korea. Electronic address:
Background: Homologous recombination deficiency (HRD)-related genetic mutations in ovarian high-grade serous carcinoma (HGSC) are known to be ethnic specific. Here, we assessed the diagnostic performance of HRD and its clinical implication in Korean HGSC patients using the SOPHiA DDM HRD Solution.
Methods: Sixty-three ovarian cancer (OC) patients were enrolled, including 53 with HGSC and 10 with other subtypes.