Pancreatic adenocarcinoma (PAAD) is a life-threatening cancer. Exploring new diagnosis and treatment targets helps improve its prognosis. tRNA-derived small non-coding RNAs (tsRNAs) are a novel type of gene expression regulators and their dysregulation is closely related to many human cancers. Yet the expression and functions of tsRNAs in PAAD are not well understood. Our study used RNA sequencing to identify tsRNA expression profiles in PAAD cells cultured in no or high glucose media and found tRF-18-8R6546D2 was an uncharacterized tsRNA, which has significantly high expression in PAAD cells and tissues. Clinically, tRF-18-8R6546D2 is linked to poor prognosis in PAAD patients and can be used to distinguish them from healthy populations. Functionally, in vitro and vivo, tRF-18-8R6546D2 over-expression promoted PAAD cell proliferation, migration and invasion, inhibited apoptosis, whereas tRF-18-8R6546D2 knock-down showed opposite effects. Mechanistically, tRF-18-8R6546D2 promoted PAAD malignancy partly by directly silencing ASCL2 and further regulating its downstream genes such as MYC and CASP3. These findings show that tRF-18-8R6546D2 is a novel oncogenic factor and can be a promising diagnostic or prognostic biomarker and therapeutic target for PAAD.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.gene.2024.148739 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Distinct prognostic impacts of age-adjusted Charlson comorbidity index and geriatric nutritional risk index in patients with intraductal papillary mucinous neoplasm.
Medicine (Baltimore)
January 2025
Department of the Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan.
The optimal surgical indication for intraductal papillary mucinous neoplasms (IPMN) remains highly contentious. We aimed to determine the preoperative predictive factors of malignancy and independent prognostic factors in patients with IPMN who underwent curative-intent resection. In this study, 104 patients with a pathological diagnosis of IPMN who underwent curative-intent resection were included.
View Article and Find Full Text PDFCystatin A promotes the antitumor activity of T helper type 1 cells and dendritic cells in murine models of pancreatic cancer.
Mol Oncol
January 2025
System Biology, Graduate School of Advanced Preventive Medical Sciences, Kanazawa University, Japan.
Pancreatic ductal adenocarcinoma (PDAC) is a disease with poor prognosis due to diagnostic and therapeutic limitations. We previously identified cystatin A (CSTA) as a PDAC biomarker and have conducted the present study to investigate the antitumor effects of CSTA. PDAC murine models were established with genetically modified PAN02 tumor cell lines to evaluate the antitumor immune response.
View Article and Find Full Text PDFUnraveling the Role of Ubiquitin-Conjugating Enzyme UBE2T in Tumorigenesis: A Comprehensive Review.
Cells
December 2024
State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, School of Marine Sciences, Ningbo University, Ningbo 315211, China.
Ubiquitin-conjugating enzyme E2 T (UBE2T) is a crucial E2 enzyme in the ubiquitin-proteasome system (UPS), playing a significant role in the ubiquitination of proteins and influencing a wide range of cellular processes, including proliferation, differentiation, apoptosis, invasion, and metabolism. Its overexpression has been implicated in various malignancies, such as lung adenocarcinoma, gastric cancer, pancreatic cancer, liver cancer, and ovarian cancer, where it correlates strongly with disease progression. UBE2T facilitates tumorigenesis and malignant behaviors by mediating essential functions such as DNA repair, apoptosis, cell cycle regulation, and the activation of oncogenic signaling pathways.
View Article and Find Full Text PDFZP3 Expression in Pancreatic Adenocarcinoma: Its Implications for the Prognosis and Therapy.
Protein Pept Lett
January 2025
Scientific Research Center, Beijing ChosenMed Clinical Laboratory Co., Ltd. Beijing100176, China.
Background: The role of Zona pellucida glycoprotein 3 (ZP3) is unclear in pancreatic adenocarcinoma (PAAD).
Objective: This study aimed to explore the role of ZP3 in PAAD.
Methods: A comparative analysis of ZP3 gene expression was performed to discern differences between various types of cancer and PAAD, leveraging data sourced from The Cancer Genome Atlas (TCGA).
Impact of Order Set on Exocrine Pancreatic Insufficiency in Chronic Pancreatitis, Pancreatic Cancer, and Pancreatic Resection.
Gastro Hep Adv
August 2024
Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Florida, Gainesville, Florida.
Background And Aims: Enzyme insufficiency (EPI) is common in chronic pancreatitis (CP), pancreatic ductal adenocarcinoma (PDAC), and after pancreatic resection. 40%-50% of CP patients and 70%-80% of PDAC patients develop EPI. 1/3rd of these patients are prescribed Pancreatic enzyme replacement therapy (PERT), often at an inadequate dose, with evidence that this leads to increased morbidity and mortality.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!