Sugar-carrying Polystyrenes Facilitate Harvesting of APCs from MLRs: Possible Application of Sugar-carrying Polystyrenes to Immunotherapy

Akira Imaizumi, Hideya Onishi, Akio Yamasaki, Makoto Kawamoto, Takashi Morisaki, Mitsuaki Goto, Masamichi Iwama, Toshihiro Akaike, Kenichiro Hasumi

Research output: Contribution to journalArticlepeer-review

Abstract

Antigen-presenting cells (APCs) play a pivotal role in cancer immunotherapy. APCs in conventionally used flasks are harvested by enzymatic digestion or cell scraping for application to cancer immunotherapy. However, these methods may impair functional molecules expressed on the APC surface and reduce their effects in cancer immunotherapy. Recently, we found that APCs could be harvested by shaking at 4°C in flasks coated with poly[N-p-vinylbenzyl-O-2-acetoamide-2-deoxy-β-D-glucopyranosyl-(1→4)-2-acetoamide-2-deoxy-β-D-gluconamide] (PVGlcNAc) or a copolymer consisting of sulfonylurea (SU) linked to poly[N-p-vinyl-benzyl-4-O-β-D-galactopyranosyl-D-gluconamide] [P(VLA-co-SU)]. In the present study, we compared the functions of cytotoxic T-lymphocytes (CTLs) induced by APCs generated in PVGlcNAc- or P(VLA-co-SU)-coated flasks and conventional flasks. APCs from PVGlcNAc- or P(VLA-co-SU)-coated flasks showed higher expression of cluster of differentiation (CD)80/86, CD11c, and major histocompatibility complex class II alloantigen I-A(d), and higher cytotoxicity than APCs from conventional flasks. These results suggest that the use of PVGlcNAc- or P(VLA-co-SU)-coated flasks is optimal for harvesting APCs. The generated APCs also have a higher antigen-presenting ability compared to those generated in conventional flasks. Our results may contribute to the development of effective cancer immunotherapies.

Original languageEnglish
Pages (from-to)673-676
Number of pages4
JournalAnticancer research
Volume36
Issue number2
Publication statusPublished - Feb 1 2016
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Oncology
  • Cancer Research

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