Hepatocellular carcinoma (HCC) is the second most common primary malignant hepatic tumor in children. It often develops in patients with underlying liver disease. We report the clinicopathologic features of an unusual HCC occurring in an infant who presented with features of Cushing's syndrome due to bilateral adrenal hyperplasia. The tumor is characterized by epithelial syncytial giant cells. Giant cell carcinoma of the liver has been previously reported, but the cells were osteoclast-like (ie, mesenchymal type) and not epithelial type as it is in this patient. We propose to use the term HCC, syncytial giant cell type, to denote this apparently novel lesion.
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http://dx.doi.org/10.1016/j.anndiagpath.2005.12.005 | DOI Listing |
PLoS Pathog
November 2024
Department of Plant Pathology and Institute of Plant Breeding, Genetics, and Genomics, University of Georgia, Georgia, United States of America.
Cyst nematodes use a stylet to secrete CLE-like peptide effector mimics into selected root cells of their host plants to hijack endogenous plant CLE signaling pathways for feeding site (syncytium) formation. Here, we identified ATHB8, encoding a HD-ZIP III family transcription factor, as a downstream component of the CLE signaling pathway in syncytium formation. ATHB8 is expressed in the early stages of syncytium initiation, and then transitions to neighboring cells of the syncytium as it expands; an expression pattern coincident with auxin response at the infection site.
View Article and Find Full Text PDFBioessays
February 2025
Section on Membrane Biology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, USA.
As life extended into eukaryota, a great host of strategies emerged in the pursuit of cellular life. Some cells have been successful in solitude, some moved into cooperatives (i.e.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
November 2024
Department of Biomedical Sciences. University of Missouri, Columbia, MO 65211.
Pregnant women are often prescribed or abuse opioid drugs. The placenta is likely the key to understanding how opioids cause adverse pregnancy outcomes. Maternal oxycodone (OXY) exposure of pregnant mice leads to disturbances in the layer of invasive parietal trophoblast giant cells (pTGC) that forms the interface between the placenta and uterus.
View Article and Find Full Text PDFPlant J
October 2024
Laboratory of Nematology, Wageningen University & Research, Wageningen, 6708, PB, the Netherlands.
Cyst nematodes establish permanent feeding structures called syncytia inside the host root vasculature, disrupting the flow of water and minerals. In response, plants form WOX11-mediated adventitious lateral roots at nematode infection sites. WOX11 adventitious lateral rooting modulates tolerance to nematode infections; however, whether this also benefits nematode parasitism remains unknown.
View Article and Find Full Text PDFPLoS Pathog
August 2024
Beijing Institute of Biotechnology, Beijing, China.
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