Nature Communications (Jul 2019)

Small extracellular vesicles containing arginase-1 suppress T-cell responses and promote tumor growth in ovarian carcinoma

  • Malgorzata Czystowska-Kuzmicz,
  • Anna Sosnowska,
  • Dominika Nowis,
  • Kavita Ramji,
  • Marta Szajnik,
  • Justyna Chlebowska-Tuz,
  • Ewa Wolinska,
  • Pawel Gaj,
  • Magdalena Grazul,
  • Zofia Pilch,
  • Abdessamad Zerrouqi,
  • Agnieszka Graczyk-Jarzynka,
  • Karolina Soroczynska,
  • Szczepan Cierniak,
  • Robert Koktysz,
  • Esther Elishaev,
  • Slawomir Gruca,
  • Artur Stefanowicz,
  • Roman Blaszczyk,
  • Bartlomiej Borek,
  • Anna Gzik,
  • Theresa Whiteside,
  • Jakub Golab

DOI
https://doi.org/10.1038/s41467-019-10979-3
Journal volume & issue
Vol. 10, no. 1
pp. 1 – 16

Abstract

Read online

Cancer cells employ a variety of ways to escape the immune system. Here, the authors show that ovarian cancer cells produce small extracellular vescicles containing arginase 1 that are taken up by dendritic cells in the draining lymph nodes, resulting in inhibition of antigen-specific T-cell proliferation.