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Global and Current Research Trends of Single-Cell Sequencing in Cancer: A Bibliometric and Visualization Study
Published on: April 18, 2025
Identifying research gaps in PIK3CA-mutant breast cancer: a bibliometric analysis of evolving trends and clinical
Min Yan1, Xinyu Li1, Fanfan Li1
1Department of Oncology, The Second Affiliated Hospital of Anhui Medical University, Hefei, China.
Background:
Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha (PIK3CA) mutations are among the most common genetic alterations in breast cancer and have important implications for tumor biology, subtype-specific behavior, and targeted therapy. This study provides a comprehensive bibliometric analysis of global research on PIK3CA mutations in breast cancer, highlighting critical research hotspots and evolving trends. We aim to address the current lack of an integrated understanding in this vital area.
Methods:
Publications related to PIK3CA and breast cancer from 2000 to 2024 were retrieved from the Web of Science Core Collection. Bibliometric cluster analyses were performed using VOSviewer, CiteSpace, and R-bibliometrix to delineate collaboration networks, journal distributions, and thematic clusters.
Results:
A total of 2,135 publications were analyzed, predominantly from the US, China, and the UK. Harvard University and Unicancer emerged as leading institutions, with significant contributions from authors such as Gordon B. Mills and Jorge S. Reis-Filho. Keyword analysis identified six major research hotspots, categorized into basic research (molecular mechanisms, signaling pathways, genomics, biomarkers, tumor biology) and clinical research (clinical trials, therapeutic strategies, cancer subtypes, drug resistance, tumor microenvironment). Citation burst analysis indicated an early focus on molecular mechanisms and gene mutations, while recent studies have shifted toward precision medicine, including liquid biopsy, advanced breast cancer subtypes, and targeted therapies such as alpelisib and fulvestrant, reflecting evolving priorities toward personalized treatment.
Conclusions:
This bibliometric study identifies six key research hotspots in PIK3CA and breast cancer, demonstrating the transition from basic mechanisms to clinical applications. Recent research trends, including liquid biopsy, advanced subtypes, and combination therapies, are closely tied to precision medicine and individualized treatment approaches.
Insights
This study analyzes global research on Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha (PIK3CA) mutations in breast cancer. It reveals a shift from basic mechanisms to precision medicine, including liquid biopsy and targeted therapies.
Area of Science:
- Oncology
- Genetics
- Bioinformatics
Background:
- Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha (PIK3CA) mutations are frequent in breast cancer, impacting tumor biology and treatment.
- Understanding PIK3CA mutation research is crucial for advancing breast cancer therapy.
Purpose of the Study:
- To conduct a comprehensive bibliometric analysis of global research on PIK3CA mutations in breast cancer.
- To identify key research hotspots and evolving trends in this field.
Main Methods:
- Bibliometric analysis of 2,135 publications from 2000-2024 using Web of Science Core Collection.
- VOSviewer, CiteSpace, and R-bibliometrix were used for cluster and citation burst analyses.
Main Results:
- Six major research hotspots were identified, spanning basic (molecular mechanisms, genomics) and clinical (therapeutics, subtypes) aspects.
- US and China lead in publications; Harvard University and Unicancer are top institutions.
- Research trends show a shift towards precision medicine, liquid biopsy, and targeted therapies like alpelisib.
Conclusions:
- Bibliometric analysis highlights six key research areas in PIK3CA and breast cancer.
- Current trends emphasize precision medicine, liquid biopsy, and combination therapies for individualized treatment.
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