Inducing Ectopic T Cell Clusters Using Stromal Vascular Fraction Spheroid-Based Immunotherapy to Enhance Anti-Tumor Immunity

  • Jae Won Lee
  • , Bum Chul Park
  • , Na Yoon Jang
  • , Sihyeon Lee
  • , Young Kyu Cho
  • , Prashant Sharma
  • , Sang Won Byun
  • , Kyeongseok Jeon
  • , Yun Hui Jeon
  • , Uni Park
  • , Hyo Jin Ro
  • , Hyo Ree Park
  • , Yuri Kim
  • , Dong Sup Lee
  • , Seok Chung
  • , Young Keun Kim*
  • , Nam Hyuk Cho*
  • *Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    15 Citations (Scopus)

    Abstract

    Tertiary lymphoid structures (TLSs) provide specialized niches for immune cells, resulting in improved prognoses for patients undergoing cancer immunotherapy. Shaping TLS-like niches may improve anti-cancer immunity and overcome the current limitations of immune cell-based immunotherapy. Here, it is shown that stromal vascular fraction (SVF) from adipose tissues can enhance dendritic cell (DC)-mediated T cell immunity by inducing ectopic T lymphocyte clusters. SVF cells expanded ex vivo have phenotypes and functions similar to those of fibroblastic reticular cells in a secondary lymphoid organ, and their properties can be modulated using three-dimensional spheroid culture and coculture with DCs spiked with antigen-loaded iron oxide–zinc oxide core-shell nanoparticles. Thereby, the combination of SVF spheroids and mature DCs significantly augments T cell recruitment and retention at the injection site. This strategy elicits enhanced antigen-specific immune response and anti-tumoral immunity in mice, illustrating the potential for a novel immunotherapeutic design using SVF as a structural scaffold for TLS.

    Original languageEnglish
    Article number2203842
    JournalAdvanced Science
    Volume9
    Issue number28
    DOIs
    Publication statusPublished - 2022 Oct 5

    Bibliographical note

    Funding Information:
    This work was supported by the National Research Foundation of Korea (No. 2014M3A7B4052192, 2019R1A2C3006587, and 2019R1I1A1A01062020) and by a grant from the Korea Health Technology R&D Project through the Korea Health Industry Development Institute (KHIDI) (No. HV22C0009). J.W.L, N.Y.J., P.S., U.P, H.J.R., and H.R.P received a scholarship from the BK21‐plus education program provided by the National Research Foundation of Korea. All illustrations in the figures were created with Biorender.com.

    Publisher Copyright:
    © 2022 The Authors. Advanced Science published by Wiley-VCH GmbH.

    Keywords

    • cancer immunotherapy
    • dendritic cells
    • immunotherapy
    • iron-oxide zinc oxide nanoparticles
    • spheroid
    • stromal vascular fraction
    • tertiary lymphoid structure

    ASJC Scopus subject areas

    • Medicine (miscellaneous)
    • General Chemical Engineering
    • General Materials Science
    • Biochemistry, Genetics and Molecular Biology (miscellaneous)
    • General Engineering
    • General Physics and Astronomy

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