Abstract
BackgroundFlap endonuclease 1 (FEN1) is a structure-specific nuclease that plays a role in a variety of DNA metabolism processes. FEN1 is important for maintaining genomic stability and regulating cell growth and development. It is associated with the occurrence and development of several diseases, especially cancers. There is a lack of systematic bibliometric analyses focusing on research trends and knowledge structures related to FEN1.PurposeTo analyze hotspots, the current state and research frontiers performed for FEN1 over the past 15 years.MethodsPublications were retrieved from the Web of Science Core Collection (WoSCC) database, analyzing publication dates ranging from 2005 to 2019. VOSviewer1.6.15 and Citespace5.7 R1 were used to perform a bibliometric analysis in terms of countries, institutions, authors, journals and research areas related to FEN1. A total of 421 publications were included in this analysis.ResultsOur findings indicated that FEN1 has received more attention and interest from researchers in the past 15 years. Institutes in the United States, specifically the Beckman Research Institute of City of Hope published the most research related to FEN1. Shen BH, Zheng L and Bambara Ra were the most active researchers investigating this endonuclease and most of this research was published in the Journal of Biological Chemistry. The main scientific areas of FEN1 were related to biochemistry, molecular biology, cell biology, genetics and oncology. Research hotspots included biological activities, DNA metabolism mechanisms, protein-protein interactions and gene mutations. Research frontiers included oxidative stress, phosphorylation and tumor progression and treatment.ConclusionThis bibliometric study may aid researchers in the understanding of the knowledge base and research frontiers associated with FEN1. In addition, emerging hotspots for research can be used as the subjects of future studies.
Highlights
Flap endonuclease 1 (FEN1) is a structure-specific nuclease that plays a role in a variety of DNA metabolism processes
VOSviewer1.6.15 and Citespace5.7 R1 were used to perform a bibliometric analysis in terms of countries, institutions, authors, journals and research areas related to FEN1
Our findings indicated that FEN1 has received more attention and interest from researchers in the past 15 years
Summary
Flap endonuclease 1 (FEN1) is a structure-specific nuclease that plays a role in a variety of DNA metabolism processes. FEN1 is important for maintaining genomic stability and regulating cell growth and development. It is associated with the occurrence and development of several diseases, especially cancers. FEN1 performs biological functions with loop endonuclease activity (FEN), 5′-3′ exonuclease activity (EXO) and gap endonuclease activity (GEN) It is involved in a variety of DNA metabolism. FEN1 is identified to be involved in microhomology-mediated end-joining, and FEN1 inhibitor exhibits synthetic lethal in vitro, indicating that FEN1 inhibitors combined with PARP inhibitors could be possibly used in BRCAdeficient tumors [13]. These results revealed that FEN1 is a potential biomarker for certain tumors. Research related to the function of FEN 1 significantly evolved, but the molecular regulatory mechanisms require further investigation
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