Adult renal stem/progenitor cells can modulate t regulatory cells and double negative t cells.

Claudia Curci, Angela Picerno, Nada Chaoul, Alessandra Stasi, Giuseppe De Palma, Rossana Franzin, Paola Pontrelli, Giuseppe Castellano, Giovanni B. Pertosa, Luigi Macchia, Vito Francesco Di Lorenzo, Carlo Sabbà, Anna Gallone, Loreto Gesualdo, Fabio Sallustio

Research output: Contribution to journalArticlepeer-review


Adult Renal Stem/Progenitor Cells (ARPCs) have been recently identified in the human kidney and several studies show their active role in kidney repair processes during acute or chronic injury. However, little is known about their immunomodulatory properties and their capacity to regulate specific T cell subpopulations. We co-cultured ARPCs activated by triggering Toll-Like Receptor 2 (TLR2) with human peripheral blood mononuclear cells for 5 days and 15 days and studied their immunomodulatory capacity on T cell subpopulations. We found that activated-ARPCs were able to decrease T cell proliferation but did not affect CD8+ and CD4+ T cells. Instead, Tregs and CD3+ CD4- CD8- double-negative (DN) T cells decreased after 5 days and increased after 15 days of co-culture. In addition, we found that PAI1, MCP1, GM-CSF, and CXCL1 were significantly expressed by TLR2-activated ARPCs alone and were up-regulated in T cells co-cultured with activated ARPCs. The exogenous cocktail of cytokines was able to reproduce the immunomodulatory effects of the co-culture with activated ARPCs. These data showed that ARPCs can regulate immune response by inducing Tregs and DN T cells cell modulation, which are involved in the balance between immune tolerance and autoimmunity.

Original languageEnglish
Article number274
Pages (from-to)1-16
Number of pages16
JournalInternational Journal of Molecular Sciences
Issue number1
Publication statusPublished - Jan 1 2021


  • DN T cells
  • Immunomodulation
  • Renal diseases
  • Stem Cells
  • Tregs

ASJC Scopus subject areas

  • Catalysis
  • Molecular Biology
  • Spectroscopy
  • Computer Science Applications
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry


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