Transcription factors , , , and are expressed in both human embryonic stem cells (hESCs) and cancer stem cells and they play a crucial role in maintaining characteristics of stemness such as self-renewal and pluripotency. This article evaluates the expression of variants of the main stem cell-specific transcription factors and critically and accurately with specific primers designed for identifying the most important variants that maintain stemness. We have examined four variants of along with a processed pseudogene and seven variants of in human teratocarcinoma cell lines (NTERA2D1, SuSa, GCT-27, and 833KE), hESCs, and ovarian cancer cells by reverse transcriptase-polymerase chain reaction. In addition, we have examined their expression in NTERA2D1 cells on differentiation with all-trans-retinoic-acid. We show that is expressed in all teratocarcinoma cells and can be distinguished from , which is an expressed pseudogene. was not expressed in any of the cell lines, including ESCs. was expressed in all cells, whereas the variant -variant 3 was expressed only in NTERA2D1 cells. On differentiation of NTERA2D1 with retinoic acid, only and were expressed. In ovarian cancer cells, only 3/6 expressed and . All malignant cells from patients with ovarian cancer ( = 6) expressed and . These results demonstrate the necessity to precisely evaluate the expression of stem cell transcription factors when defining stemness.
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http://dx.doi.org/10.1089/cell.2019.0005 | DOI Listing |
J Mater Sci Mater Med
January 2025
Department of Neurology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, PR China.
In-stent restenosis (ISR) following interventional therapy is a fatal clinical complication. Current evidence indicates that neointimal hyperplasia driven by uncontrolled proliferation of vascular smooth muscle cells (VSMC) is a major cause of restenosis. This implies that inhibiting VSMC proliferation may be an attractive approach for preventing in-stent restenosis.
View Article and Find Full Text PDFBreast Cancer Res
January 2025
School of Electronic Engineering and Computer Science, Queen Mary University of London, London, UK.
Recent evidence indicates that endocrine resistance in estrogen receptor-positive (ER+) breast cancer is closely correlated with phenotypic characteristics of epithelial-to-mesenchymal transition (EMT). Nonetheless, identifying tumor tissues with a mesenchymal phenotype remains challenging in clinical practice. In this study, we validated the correlation between EMT status and resistance to endocrine therapy in ER+ breast cancer from a transcriptomic perspective.
View Article and Find Full Text PDFBMC Plant Biol
January 2025
Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture and Rural Affairs, College of Horticulture, South China Agricultural University, Guangzhou, 510642, China.
Background: Flowering is a complex, finely regulated process involving multiple phytohormones and transcription factors. However, flowering regulation in pitaya (Hylocereus polyrhizus) remains largely unexamined. This study addresses this gap by investigating gibberellin-3 (GA3) effects on flower bud (FB) development in pitaya.
View Article and Find Full Text PDFCancer Biol Ther
December 2025
Department of Hematology, Children's Hospital of Soochow University, Suzhou, China.
Cell cycle dysregulation and the corresponding metabolic reprogramming play significant roles in tumor development and progression. CDK9, a kinase that regulates gene transcription and cell cycle, also induces oncogene transcription and abnormal cell cycle in AML cells. The function of CDK9 for gene regulation in AML cells requires further exploration.
View Article and Find Full Text PDFJ Biomed Sci
January 2025
Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, State Key Laboratory of Anti-Infective Drug Discovery and Development, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China.
Background: Recent studies indicate that N6-methyladenosine (mA) RNA modification may regulate ferroptosis in cancer cells, while its molecular mechanisms require further investigation.
Methods: Liquid Chromatography-Tandem Mass Spectrometry (HPLC/MS/MS) was used to detect changes in mA levels in cells. Transmission electron microscopy and flow cytometry were used to detect mitochondrial reactive oxygen species (ROS).
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