Cited by 62Pancreatic and Hepatic Oncology ResearchCancer Immunotherapy and BiomarkersImmune cells in cancer

Neoadjuvant FOLFIRINOX therapy is associated with increased effector T cells and reduced suppressor cells in patients with pancreatic cancer

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Peng, Hui, James, C. Alston, Cullinan, Darren R., Hogg, Graham D., Mudd, Jacqueline L., Zuo, Chong, Takchi, Rony, Caldwell, Katharine E. +6 more·2021·Clinical Cancer Research

Published version of a preprint

Abstract

Purpose: FOLFIRINOX has demonstrated promising results for patients with pancreatic ductal adenocarcinoma (PDAC). Chemotherapy-induced immunogenic cell death can prime antitumor immune responses. We therefore performed high-dimensional profiling of immune cell subsets in peripheral blood to evaluate the impact of FOLFIRINOX on the immune system. Experimental Design: Peripheral blood mononuclear cells (PBMC) were obtained from treatment-naïve (n = 20) and FOLFIRINOX-treated patients (n = 19) with primary PDAC tumors at the time of resection. PBMCs were characterized by 36 markers using mass cytometry by time of flight (CyTOF). Results: Compared with treatment-naïve patients, FOLFIRINOX-treated patients showed distinct immune profiles, including significantly decreased inflammatory monocytes and regulatory T cells (Treg), increased Th1 cells, and decreased Th2 cells. Notably, both monocytes and Treg expressed high levels of immune suppression-associated CD39, and the total CD39+ cell population was significantly lower in FOLFIRINOX-treated patients compared with untreated patients. Cellular alterations observed in responders to FOLFIRINOX included a significantly decreased frequency of Treg, an increased frequency of total CD8 T cells, and an increased frequency of CD27−Tbet+ effector/effector memory subsets of CD4 and CD8 T cells. Conclusions: Our study reveals that neoadjuvant chemotherapy with FOLFIRINOX enhances effector T cells and downregulates suppressor cells. These data indicate that FOLFIRINOX neoadjuvant therapy may improve immune therapy and clinical outcome in patients with PDAC.

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  • Gammaproteobacteria in PDAC directly detoxify gemcitabine through expression of cytidine deaminase.

    “gammaproteobacterial PDAC have been shown to directly detoxify gemcitabine through expression of cytidine deaminase267.”

    From Pancreatic cancer: Advances and challenges (2023) · cites this paper as [267]

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  1. [50]Zhou DC, Jayasinghe RG, Herndon JM, Storrs E, Mo C-K, Wu Y, et al Spatial drivers and pre-cancer populations collaborate with the microenvironment in untreated and chemo-resistant pancreatic cancer. bioRxiv 2021.

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Authors
Peng, H., James, C. A., Cullinan, D. R., Hogg, G. D., Mudd, J. L., Zuo, C., Takchi, R., Caldwell, K. E., Liu, J., DeNardo, D. G., Fields, R. C., Gillanders, W. E., Goedegebuure, S. P., & Hawkins, W. G.
Affiliations
Washington University in St. Louis (US)
Corresponding author
Hawkins, William G.
Venue
Clinical Cancer Research
Published
2021-12-15
Volume
27
Issue
24
Pages
6761-6771
ISSN
  • 1078-0432 (ISSN-L)
  • 1557-3265
OpenAlex
W3202028317
Cited by
61
References
50
Citations by year
2026: 6 · 2025: 3 · 2024: 19 · 2023: 16 · 2022: 16 · 2021: 1
FWCI
4.83
Type
journal article
Language
en
Open access
Locations
  • Clinical Cancer Research (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
  • NCI (T32 CA009621)
  • The Washington University SPORE in Pancreas Cancer (P50CA196510)
Topics
  • Health Sciences › Medicine › Oncology › Pancreatic and Hepatic Oncology Research
  • Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
  • Life Sciences › Immunology and Microbiology › Immunology › Immune cells in cancer
Keywords
FOLFIRINOX, pancreatic ductal adenocarcinoma, neoadjuvant chemotherapy, tumor-infiltrating immune cells, regulatory T cells, effector T cells, CD39, inflammatory monocytes, Th1/Th2 balance, CD8+ T cells, CD4+ T cells, mass cytometry
MeSH terms
Irinotecan, Oxaliplatin, Antineoplastic Combined Chemotherapy Protocols, Leucovorin, Fluorouracil, Humans, Leukocytes, Mononuclear, Pancreatic Neoplasms, CD8-Positive T-Lymphocytes, Neoadjuvant Therapy

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