The hotspots and publication trends in glioblastoma and CAR-T immunotherapy: A bibliometric analysis

In recent years, chimeric antigen receptor T cell (CAR-T) immunotherapy has made considerable progress in the treatment of glioblastoma. The aim of this study was to comprehensively explore the prospects and future trends of CAR-T immunotherapy for glioblastoma through systematic bibliometric analysis. Publications pertaining to glioblastoma and CAR-T immunotherapy from 2008 to 2024 were extracted from the Web of Science Core Collection. Utilizing VOSviewer (version 1.6.20), CiteSpace (version 6.3.R1), and R 4.3.3, this study concentrated on evaluating contributions from countries, institutions, authors, and journals, while also identifying research hotspots and emerging trends. A total of 570 publications were identified, demonstrating an annual growth rate of 31.71%. The USA led the field with 269 publications, followed by China (113). The University of Pennsylvania, Harvard University, and the University of California System emerged as the most prolific institutions. <i>Frontiers in Immunology</i> published the most articles (42), while <i>Clinical Cancer Research</i> garnered the highest number of citations (2,867). Recent keyword bursts (2022-2024) underscored an increasing focus on combination therapy approaches and outcomes, particularly emphasizing "radiotherapy" (strength 3.49), "solid tumor" (strength 3.49), and "efficacy" (strength 2.79). In recent years, research on CAR-T immunotherapy for glioblastoma has gradually shifted from the exploration of basic mechanisms to the application of clinical combination therapy, and this shift in research direction indicates that CAR-T immunotherapy has a relatively mature technology and great clinical translation potential. In the coming years, CAR-T immunotherapy is expected to usher in a golden era and benefit more patients suffering from glioblastoma.