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Dual Biological Role and Clinical Impact of De Novo Chromatin Activation in Chronic Lymphocytic Leukemia.
Blood
January 2025
IDIBAPS, Barcelona, Spain.
Previous studies have reported that chronic lymphocytic leukemia (CLL) shows a de novo chromatin activation pattern as compared to normal B cells. Here, we explored whether the level of chromatin activation is related to the clinical behavior of CLL. We identified that in some regulatory regions, increased de novo chromatin activation is linked to clinical progression whereas, in other regions, it is associated with an indolent course.
View Article and Find Full Text PDFThe Role of the Dysregulation of circRNAs Expression in Glioblastoma Multiforme.
J Mol Neurosci
January 2025
Department of Pediatric Neurosurgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China.
Primary brain tumors that were the most severe and aggressive were called glioblastoma multiforme (GBM). Cancers are caused in part by aberrant expression of circular RNA. Often referred to as competitive endogenous RNA (ceRNA), circRNA molecules act as "miRNA sponges" in cells by decreasing the inhibitory impact of miRNA on their target genes and hence raising the expression levels of those genes.
View Article and Find Full Text PDFLINC02418 suppresses endometrial cancer progression via regulating miR-494-3p/RASGRF1 axis.
J Mol Histol
January 2025
Obstetrics and Gynecology, The Affiliated People's Hospital of Ningbo University, 251 East Baizhang Road, Ningbo, 315040, Zhejiang, China.
Long non-coding RNAs (lncRNAs) have emerged as pivotal regulatory molecules in cancer biology. Among these, long intergenic non-protein coding RNA 02418 (LINC02418), a recently identified lncRNA, has been linked to endometrial cancer (EC), although its function and operational mechanisms are largely unclear. The present investigation aims to elucidate the molecular mechanism through which LINC02418 influences EC pathogenesis.
View Article and Find Full Text PDFDNA-Dependent Protein Kinase Catalytic Subunit Prevents Ferroptosis in Retinal Pigment Epithelial Cells.
Invest Ophthalmol Vis Sci
January 2025
Department of Ophthalmology of Tongji Hospital and Laboratory of Clinical and Visual Sciences of Tongji Eye Institute, School of Medicine, Tongji University, Shanghai, China.
Purpose: The purpose of this study was to investigate the activated core kinases involved in the DNA damage responses (DDR) during ferroptosis of retinal pigment epithelial (RPE) cells in vitro and their regulatory effects on ferroptosis.
Methods: Ferroptosis was induced by erastin in induced RPE (iRPE) cells derived from human umbilical cord mesenchymal stem cells (hUCMSCs), hUCMSCs, and induced pluripotent stem cell-derived RPE (iPSC-RPE) cells. CCK8 was employed to measure the cell viability.
Immunotherapy has elicited significant improvements in outcomes for patients with several tumor types. However, the immunosuppressive microenvironment in glioblastoma restricts the therapeutic efficacy of immune checkpoint blockade (ICB). In this study, we investigated which components of the immune microenvironment contribute to ICB failure in glioblastoma to elucidate the underlying causes of immunotherapeutic resistance.
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