The homeobox gene PROX1 is related to the Drosophila prospero gene, which is expressed in the developing central nervous system and lens-secreting cone cells. We found that the PROX1 gene had missense and nonsense mutations in 4 of 29 hematologic cell lines analyzed. Decreased mRNA expression was also observed in half of these cell lines by RT-PCR. The restoration of PROX1 gene expression after treatment with the demethylating agent 5-aza-2'-deoxycytidine, as well as bisulfite sequencing analysis, indicated that gene silencing is caused by DNA hypermethylation at intron 1. Such hypermethylation was also seen in primary lymphomas (56.3%, 18/32) in a tumor-specific manner. These findings indicate that the profile of the PROX1 gene corresponds to that of a candidate tumor-suppressor gene.
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http://dx.doi.org/10.1002/gcc.10248 | DOI Listing |
Cell Tissue Res
January 2025
Department of Animal Science, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia.
Traditional transcriptomic studies often overlook the complex heterogeneity of skeletal muscle, as they typically isolate RNA from mixed muscle fibre and cell populations, resulting in an averaged transcriptomic profile that obscures fibre type-specific differences. This study assessed the potential of the recently developed Xenium platform for high-resolution spatial transcriptomic analysis of human skeletal muscle histological sections. Human vastus lateralis muscle samples from two individuals were analysed using the Xenium platform and Human Multi-Tissue and Cancer Panel targeting 377 genes complemented by staining of successive sections for Myosin Heavy Chain isoforms to differentiate between type 1 and type 2 muscle fibres.
View Article and Find Full Text PDFGenes (Basel)
November 2024
Institute of Pathology, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia.
Background: Altered gene expression in cancers holds great potential to improve the diagnostics and differentiation of primary and metastatic liver cancers. In this study, the expression of the protein-coding genes ring finger protein 135 (), ephrin-B2 (), ring finger protein 125 (), homeobox-C 4 (), actin-binding LIM protein 1 () and oncostatin M receptor () and the long non-coding RNAs (lncRNA) prospero homeobox 1 antisense RNA 1 () and leukemia inhibitory factor receptor antisense RNA 1 () was investigated in hepatocellular carcinoma, cholangiocarcinoma, colorectal liver metastases and pancreatic ductal adenocarcinoma liver metastases.
Methods: This study included 149 formalin-fixed, paraffin-embedded samples from 80 patients.
Int J Gen Med
December 2024
Department of Pathology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yun Nan, People's Republic of China.
Purpose: To identify the epithelial cell centre regulatory transcription factors in the gastric cancer (GC) microenvironment and provide a new strategy for the diagnosis and treatment of GC.
Methods: The GC single-cell dataset was downloaded from the Gene Expression Omnibus (GEO) database. The regulatory mechanisms of transcription factors in both pan-cancer and GC microenvironments were analysed using the Cancer Genome Atlas (TGCA) database.
Mol Biol Rep
December 2024
Humanitas College, Kyung Hee University, 1732 Deogyeongdae-Ro, Yongin, 17104, South Korea.
Background: Secondary lymphedema is a progressive condition caused by lipid- and protein-rich interstitial fluid accumulation resulting from compromised lymphatic function. It commonly occurs in cancer patients following surgical lymph node ablation and radiation treatment. This study aims to elucidate the effects of exercise on the myokine interleukin (IL)-6 and the molecular changes involved in lymphangiogenesis and extracellular matrix (ECM) synthesis using a lymphedema mouse model.
View Article and Find Full Text PDFExp Biol Med (Maywood)
December 2024
State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.
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