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The objective of this study was to assess the stemness marker expressions (Oct4, Nanog, and Sox2) of granulosa cells (GCs) collected from bovine ovarian follicles and expansion. The single bovine ovarian follicles were isolated and categorized into 4 groups according to their diameter including group A (<2 mm), group B (2-3 mm), group C (3-4 mm), and group D (>4 mm). Quantitative reverse transcriptase polymerase chain reaction (qRT-PCR) and immunostaining were applied to evaluate the stemness marker expression of bovine GCs from ovarian follicles. We also estimated the stemness marker transcript expressions of GCs during expression by qRT-PCR. qRT-PCR analysis demonstrated that fresh GCs from bovine ovarian follicles expressed the stemness markers (Oct4, Nanog, Sox2). These markers were down-regulated during antral stage follicular development. We also estimated stemness marker transcript expressions of GCs which were isolated and expanded from ovarian follicles of group A. The qRT-PCR results showed that Oct4 and Sox2 transcript expressions were reduced during expansion while Nanog transcript was not expressed.
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http://dx.doi.org/10.21451/1984-3143-AR2018-0083 | DOI Listing |
Biochim Biophys Acta Rev Cancer
September 2025
Institute of Cancer Therapeutics, Faculty of Life Sciences, University of Bradford, Bradford, United Kingdom. Electronic address:
Cancer stem cells (CSCs) are central to tumour initiation, progression, and relapse, yet their dynamic and adaptive nature hampers therapeutic targeting. Once viewed as a fixed subpopulation, CSCs are now recognised as a fluid functional state that tumour cells can enter or exit, driven by intrinsic programs, epigenetic reprogramming, and microenvironmental cues. This plasticity complicates identification due to inconsistent marker expression and enables resistance, dormancy, and metastasis.
View Article and Find Full Text PDFStem Cell Res
August 2025
Department of Biomedical Engineering, School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA; Division of Cardiology, Department of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA. Electronic address:
The use of well characterized human induced pluripotent stem cells (hiPSCs) is essential for developmental studies and disease modeling. Here, we report the generation of a normal, female line of hiPSCs following reprogramming of peripheral blood mononuclear cells (PBMCs) derived from a healthy female donor using Sendai virus technology. This line, which has been extensively employed for the in vitro study of mesoderm-derived cardiomyocytes, is available and registered in the Human Pluripotent Stem Cell Registry (hPSCreg).
View Article and Find Full Text PDFBiomed Rep
October 2025
Laboratory of Molecular Biomedicine, Faculty of Chemical and Biological Sciences, Autonomous University of Guerrero, Chilpancingo, Guerrero 39090, Mexico.
Oct3/4 is a transcription factor that maintains the stemness of both embryonic and adult stem cells. The Oct3/4 gene produces three isoforms: namely, Oct3/4A, Oct3/4B and Oct3/4B1. Increased Oct3/4 expression is associated with lower survival rates and chemoresistance in patients with cancer.
View Article and Find Full Text PDFDrug Dev Res
September 2025
Department of Orthopedics, Gaoxin Branch of The First Affiliated Hospital, Nanchang University, Nanchang, PR China.
Osteosarcoma (OS) is a common malignant bone tumor, frequently associated with impaired osteogenic differentiation of tumor cells. Recent studies have suggested that the NOTCH signaling pathway plays a crucial role in maintaining tumor cell stemness and may influence their differentiation status. This study investigates the role of NOTCH2, a key receptor in the NOTCH family, in regulating osteogenic differentiation in OS.
View Article and Find Full Text PDFFront Immunol
September 2025
Department of Gastroenterology, The Second Medical Center and National Clinical Research Center for Geriatric Diseases, Chinese Peoples Liberation Army (PLA) General Hospital, Beijing, China.
Introduction: Fatty acid synthase (FASN) is a key regulator of lipid metabolism, but its role in colorectal cancer (CRC) stemness and ferroptosis remains unclear.
Methods: FASN expression in CRC was analyzed using TCGA data and validated in CRC cell lines (CACO-2, HCT116, SW480) and normal HIEC-6 cells via qRT-PCR and Western blot. HCT116 cells (highest FASN expression) were used for experiments.