Conclusions: Increased expression of Dicer may be a prognostic biomarker for patients with laryngeal squamous cell carcinoma (LSCC).
Objectives: Recent studies have shown that many microRNAs (miRNAs) play an important role in the development and progression of human cancers. Dicer, one of the most important enzymes of the miRNA machinery, performs the final step of biogenesis of miRNAs. This study aimed to investigate the impact of Dicer expression on patient survival in human LSCC.
Methods: We detected the expression of Dicer in larynx tissue specimens from 76 LSCC samples and 26 polyps by immunohistochemistry. The clinicopathological and prognostic significance of Dicer expression was investigated in LSCC.
Results: Our data showed that the expression of Dicer was significantly higher in the LSCC than in the polyp tissue specimens. Moreover, the expression level of Dicer was significantly associated with the pTNM stage and tumor lymph node metastasis. Kaplan-Meier survival analyses revealed a strong association between tumor Dicer expression and the survival of the patients with LSCC.
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http://dx.doi.org/10.3109/00016489.2014.920962 | DOI Listing |
Nat Struct Mol Biol
December 2024
Instituto de Agrobiotecnología del Litoral (CONICET-UNL), Cátedra de Biología Celular y Molecular, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Santa Fe, Argentina.
Infectious diseases drive wild plant evolution and impact crop yield. Plants, like animals, sense biotic threats through pattern recognition receptors (PRRs). Overly robust immune responses can harm plants; thus, understanding the tuning of defense response mechanisms is crucial for developing pathogen-resistant crops.
View Article and Find Full Text PDFNoncoding RNA
November 2024
School of Biological Sciences, University of Oklahoma, Norman, OK 73019, USA.
RNA plays important roles in the regulation of gene expression in response to environmental stimuli. , a long noncoding cis-natural antisense RNA, is a key component of regulating the response to cold temperature in . There are three mechanisms through which fine tunes the transcriptional response to cold temperatures.
View Article and Find Full Text PDFJ Med Chem
December 2024
Center for Natural Products Research, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.
Transactivation response (TAR) RNA-binding protein 2 (TRBP) plays a critical role in microRNA (miRNA) biosynthesis, with aberrant expression linked to various cancers. Previously, we identified , a phenyloxazole derivative that disrupts the TRBP-Dicer interaction in hepatocellular carcinoma (HCC). In this study, we optimized this scaffold and substituent, leading to the discovery of , a 2-phenylthiazole-5-carboxylic acid derivative with nanomolar inhibitory activity (EC = 0.
View Article and Find Full Text PDFInt J Mol Sci
December 2024
PHIM Plant Health Institute, University of Montpellier, INRAE, CIRAD, IRD, Institute Agro, 34398 Montpellier, France.
The green peach aphid () is a generalist pest damaging crops and transmitting viral pathogens. Using Illumina sequencing of small (s)RNAs and poly(A)-enriched long RNAs, we analyzed aphid virome components, viral gene expression and antiviral RNA interference (RNAi) responses. Myzus persicae densovirus (family ), a single-stranded (ss)DNA virus persisting in the aphid population, produced 22 nucleotide sRNAs from both strands of the entire genome, including 5'- and 3'-inverted terminal repeats.
View Article and Find Full Text PDFMicroPubl Biol
November 2024
Pharmacology, University of South Alabama College of Medicine, Mobile, AL.
The excision of specific tRNA-derived small RNAs (tsRNAs), yRNA-derived small RNAs (ysRNAs) and ribosomal RNA-derived small RNAs (rsRNAs) is now well established. Several reports have suggested many of these fragments function much like traditional microRNAs (miRNAs). That said, whereas the expressions of the majority of appreciably expressed miRNAs in HCT116 colon cancer cells are significantly decreased in individual knockouts (KOs) of DROSHA, DGCR8, XPO5, and DICER, on average, only 3.
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