Introduction: The programmed cell death (PCD) pathway plays an important role in restricting cancer cell survival and proliferation. However, limited studies have investigated the association between genetic variants in the 3'-untranslated region of the PCD pathway genes and breast cancer outcomes.
Methods: In this study, we genotyped 28 potentially functional single nucleotide polymorphisms (SNPs) in 23 PCD pathway genes in 1,177 patients with early-stage breast cancer (EBC) from a Han Chinese population. The median follow-up period was 174 months.
Results: Among all the candidate SNPs, four independent SNPs (rs4900321 and rs7150025 in ATG2B, rs6753785 in BCL2L11, and rs2213181 in c-Kit) were associated with invasive disease-free survival (iDFS), distant disease-free survival (DDFS), breast cancer-specific survival (BCSS) and overall survival (OS), respectively. Further combined genotypes of these four SNPs revealed that the survival decreased as the number of unfavorable genotypes increased (Ptrend = 1.0 × 10-6, 8.5 × 10-8, 3.6 × 10-4, and 1.3 × 10-4 for iDFS, DDFS, BCSS, and OS, respectively). Receiver operating characteristic curve analysis demonstrated that incorporating unfavorable genotypes and clinicopathological variables improved the ability to predict EBC survival (P = 0.006, 0.004, 0.029, and 0.019 for iDFS, DDFS, BCSS, and OS, respectively). Additionally, rs6753785 and rs2213181 were associated with BCL2L11 and c-Kit mRNA expression, respectively.
Conclusions: Our results suggest that these four SNPs may act as novel biomarkers for EBC survival, possibly by modulating the expression of the corresponding genes.
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http://dx.doi.org/10.3389/fimmu.2024.1284579 | DOI Listing |
EMBO Rep
January 2025
Department of Ecology, Evolution and Behavior, Alexander Silberman Institute of Life Sciences, Faculty of Science, Hebrew University of Jerusalem, Jerusalem, 9190401, Israel.
microRNAs (miRNAs) are important post-transcriptional regulators that activate silencing mechanisms by annealing to mRNA transcripts. While plant miRNAs match their targets with nearly-full complementarity leading to mRNA cleavage, miRNAs in most animals require only a short sequence called 'seed' to inhibit target translation. Recent findings showed that miRNAs in cnidarians, early-branching metazoans, act similarly to plant miRNAs, by exhibiting full complementarity and target cleavage; however, it remained unknown if seed-based regulation was possible in cnidarians.
View Article and Find Full Text PDFNat Commun
January 2025
Epigenetics and RNA Biology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, USA.
PUF RNA-binding proteins are broadly conserved stem cell regulators. Nematode PUF proteins maintain germline stem cells (GSCs) and, with key partner proteins, repress differentiation mRNAs, including gld-1. Here we report that PUF protein FBF-2 and its partner LST-1 form a ternary complex that represses gld-1 via a pair of adjacent FBF binding elements (FBEs) in its 3'UTR.
View Article and Find Full Text PDFScience
January 2025
Department of Evolution and Ecology, University of California, Davis, CA, USA.
Balanced mating type polymorphisms offer a distinct window into the forces shaping sexual reproduction strategies. Multiple hermaphroditic genera in Juglandaceae, including walnuts () and hickories (), show a 1:1 genetic dimorphism for male versus female flowering order (heterodichogamy). We map two distinct Mendelian inheritance mechanisms to ancient (>37 million years old) genus-wide structural DNA polymorphisms.
View Article and Find Full Text PDFJ Appl Genet
January 2025
College of Animal Science and Technology, Yangzhou University, Yangzhou, China.
In our previous study, we identified a Short Interspersed Nuclear Element Retrotransposon Insertion Polymorphism (SINE-RIP) within the 3' untranslated region (3'UTR) of the Phospholipase A2 Group XVI (PLA2G16) gene, which is essential in lipid metabolism. In this study, we confirmed the presence of this 280 bp SINE insertion and examined its distribution across ten distinct pig breeds using PCR and sequencing. Subsequently, RT-PCR was employed to determine its potential for co-transcription.
View Article and Find Full Text PDFMikrobiyol Bul
October 2024
The University of Groningen, University Medical Center Groningen, Department of Medical Microbiology and Infection Prevention, Division of Clinical Virology, Groningen, Netherlands.
As the number of coronavirus diseases-2019 (COVID-19) cases have decreased and measures have started to be implemented at an individual level rather than in the form of social restrictions, severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) still maintains its importance and has already taken its place in the spectrum of agents investigated in multiplex molecular test panels for respiratory tract infections in routine diagnostic use. In this study, we aimed to present mutation analysis and clade distribution of whole genome sequences from randomly selected samples that tested positive with SARS-CoV-2 specific real-time reverse transcription polymerase chain reaction (rRT-PCR) test at different periods of the pandemic in our laboratory with a commercial easy-to-use kit designed for next-generation sequencing systems. A total of 84 nasopharyngeal/oropharyngeal swab samples of COVID-19 suspected patients which were sent for routine diagnosis to the medical microbiology laboratory and detected as SARSCoV-2 RNA positive with rRT-PCR were randomly selected from different periods for sequence analysis.
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