MicroRNAs (miRNAs) act as regulators of gene expression via translational repression. Single nucleotide polymorphisms (SNPs) in miRNAs have been shown to affect the regulatory capacity of miRNAs by influencing miRNA processing and/or miRNA-mRNA interactions. The purpose of this study was to investigate the association between 2 SNPs commonly found in precursor miRNA and the susceptibility and clinicopathological characteristics of pancreatic cancer. The rs11614913/miR-196a2, rs2910164/miR-146a SNPs were genotyped in 93 patients with pancreatic cancer and in 122 healthy controls. No significant differences in genotype distributions between controls and PC patients were observed. However, rs2910164 GG and rs11614913 CC genotypes and the rs2910164C/rs11614913C and rs2910164G/rs11614913C haplotypes were significantly overrepresented in PC patients with T1 and T2 tumor status than in those with T3 and T4. Our findings suggested that the rs2910164 and rs11614913 SNPs might play a role in pancreatic tumorigenesis, but the molecular mechanism underlying the particular sequence variations in miRNA that can cause aberrant expression remains to be determined.
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http://dx.doi.org/10.1016/j.pan.2013.02.005 | DOI Listing |
Nanomedicine (Lond)
January 2025
Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI, USA.
Aim: To develop pH (pHe)-triggered membrane adhesive nanoliposome (pHTANL) of CD40a to enhance anti-tumor activity in pancreatic cancer while reducing systemic toxicity.
Materials And Methods: A small library of nanoliposomes (NL) with various lipid compositions were synthesized to prepare pH (pHe)-triggered membrane adhesive nanoliposome (pHTANL). Physical and functional characterization of pHTANL-CD40a was performed via dynamic light scattering (DLS), Transmission Electron Microscopy (TEM), confocal microscopy, and flow cytometry.
EClinicalMedicine
December 2024
Department of Pathology and Genetics, Laboratory of Cancer Medical Science, Hokuto Hospital, Obihiro, Hokkaido, Japan.
Background: Pancreatic cancer is highly aggressive and has a low survival rate primarily due to late-stage diagnosis and the lack of effective early detection methods. We introduce here a novel, noninvasive urinary extracellular vesicle miRNA-based assay for the detection of pancreatic cancer from early to late stages.
Methods: From September 2019 to July 2023, Urine samples were collected from patients with pancreatic cancer (n = 153) from five distinct sites (Hokuto Hospital, Kawasaki Medical School Hospital, National Cancer Center Hospital, Kagoshima University Hospital, and Kumagaya General Hospital) and non-cancer participants (n = 309) from two separate sites (Hokuto Hospital and Omiya City Clinic).
Cureus
January 2025
Department of Surgery, King Saud University, College of Medicine, Riyadh, SAU.
Laparoscopic liver resection (LLR) is a minimally invasive surgical approach. Initially utilized for low-risk procedures, such as the resection of benign lesions, now LLR has evolved to include more complex operations such as metastatic lesions. We present in this article two cases with liver metastasis who underwent a successful two-stage total LLR: a 57-year-old man diagnosed with sigmoid cancer and liver metastasis and a 36-year-old man diagnosed with pancreatic neuroendocrine tumor and liver metastasis.
View Article and Find Full Text PDFCureus
December 2024
Radiation Oncology, Washington University School of Medicine, Saint Louis, USA.
CT-guided adaptive radiotherapy (ART) for the treatment of pancreatic adenocarcinoma is rapidly increasing and has been shown to provide advanced treatment tools comparable to magnetic resonance imaging (MRI)-guided adaptive therapy. Here, we provide the first case report of a local pancreatic recurrence treatment after definitive resection using cone beam computed tomography (CBCT)-guided ART (CT-guided ART) enabled by HyperSight imaging (Varian Medical Systems, Inc., Palo Alto, CA, USA) for daily delineation of organs-at-risk (OARs) and target to improve the quality of online ART.
View Article and Find Full Text PDFBackground: Cachexia is defined by chronic loss of fat and muscle, is a frequent complication of pancreatic ductal adenocarcinoma (PDAC), and negatively impacts patient outcomes. Nutritional supplementation cannot fully reverse tissue wasting, and the mechanisms underlying this phenotype are unclear. This work aims to define the relative contributions of catabolism and anabolism to adipose wasting in PDAC-bearing mice.
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