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Dendritic Cell Paucity Leads to Dysfunctional Immune Surveillance in Pancreatic Cancer.

Samarth Hegde | Varintra E Krisnawan | Brett H Herzog | Chong Zuo | Marcus A Breden | Brett L Knolhoff | Graham D Hogg | Jack P Tang | John M Baer | Cedric Mpoy | Kyung Bae Lee | Katherine A Alexander | Buck E Rogers | Kenneth M Murphy | William G Hawkins | Ryan C Fields | Carl J DeSelm | Julie K Schwarz | David G DeNardo
Cancer cell | 2020

Here, we utilized spontaneous models of pancreatic and lung cancer to examine how neoantigenicity shapes tumor immunity and progression. As expected, neoantigen expression during lung adenocarcinoma development leads to T cell-mediated immunity and disease restraint. By contrast, neoantigen expression in pancreatic ductal adenocarcinoma (PDAC) results in exacerbation of a fibro-inflammatory microenvironment that drives disease progression and metastasis. Pathogenic TH17 responses are responsible for this neoantigen-induced tumor progression in PDAC. Underlying these divergent T cell responses in pancreas and lung cancer are differences in infiltrating conventional dendritic cells (cDCs). Overcoming cDC deficiency in early-stage PDAC leads to disease restraint, while restoration of cDC function in advanced PDAC restores tumor-restraining immunity and enhances responsiveness to radiation therapy.

Pubmed ID: 32183949

Antibodies used in this publication

Associated grants

  • Agency: NIH HHS, United States
    Id: S10 OD020136
  • Agency: NCI NIH HHS, United States
    Id: K00 CA223043
  • Agency: NCI NIH HHS, United States
    Id: R01 CA203890
  • Agency: NCRR NIH HHS, United States
    Id: UL1 RR024992
  • Agency: NCI NIH HHS, United States
    Id: R01 CA244938
  • Agency: NCI NIH HHS, United States
    Id: P30 CA091842
  • Agency: NIH HHS, United States
    Id: DP5 OD026427
  • Agency: NCI NIH HHS, United States
    Id: R01 CA177670
  • Agency: NCI NIH HHS, United States
    Id: F99 CA223043
  • Agency: NCI NIH HHS, United States
    Id: P50 CA196510
  • Agency: NCI NIH HHS, United States
    Id: R01 CA181745
  • Agency: NIDDK NIH HHS, United States
    Id: P30 DK052574
  • Agency: NCATS NIH HHS, United States
    Id: UL1 TR002345

Publication data is provided by the National Library of Medicine ® and PubMed ®. Data is retrieved from PubMed ® on a weekly schedule. For terms and conditions see the National Library of Medicine Terms and Conditions.

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Bio X Cell (tool)

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anti-mouse CD4 (antibody)

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