Multimodal Mapping of the Tumor and Peripheral Blood Immune Landscape in Human Pancreatic Cancer

Pancreatic ductal adenocarcinoma (PDA) is characterized by an immune-suppressive tumor microenvironment that renders it largely refractory to immunotherapy. We implemented a multimodal analysis approach to elucidate the immune landscape in PDA. Using a combination of CyTOF, single-cell RNA sequencing, and multiplex immunohistochemistry on patient tumors, matched blood, and non-malignant samples, we uncovered a complex network of immune-suppressive cellular interactions. These experiments revealed heterogeneous expression of immune checkpoint receptors in individual patient's T cells and increased markers of CD8+ T cell dysfunction in advanced disease stage. Tumor-infiltrating CD8+ T cells had an increased proportion of cells expressing an exhausted expression profile that included upregulation of the immune checkpoint TIGIT, a finding that we validated at the protein level. Our findings point to a profound alteration of the immune landscape of tumors, and to patient-specific immune changes that should be taken into account as combination immunotherapy becomes available for pancreatic cancer.

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - volume:1

Enthalten in:

Nature cancer - 1(2020), 11 vom: 14. Nov., Seite 1097-1112

Sprache:

Englisch

Beteiligte Personen:

Steele, Nina G [VerfasserIn]
Carpenter, Eileen S [VerfasserIn]
Kemp, Samantha B [VerfasserIn]
Sirihorachai, Veerin R [VerfasserIn]
The, Stephanie [VerfasserIn]
Delrosario, Lawrence [VerfasserIn]
Lazarus, Jenny [VerfasserIn]
Amir, El-Ad David [VerfasserIn]
Gunchick, Valerie [VerfasserIn]
Espinoza, Carlos [VerfasserIn]
Bell, Samantha [VerfasserIn]
Harris, Lindsey [VerfasserIn]
Lima, Fatima [VerfasserIn]
Irizarry-Negron, Valerie [VerfasserIn]
Paglia, Daniel [VerfasserIn]
Macchia, Justin [VerfasserIn]
Chu, Angel Ka Yan [VerfasserIn]
Schofield, Heather [VerfasserIn]
Wamsteker, Erik-Jan [VerfasserIn]
Kwon, Richard [VerfasserIn]
Schulman, Allison [VerfasserIn]
Prabhu, Anoop [VerfasserIn]
Law, Ryan [VerfasserIn]
Sondhi, Arjun [VerfasserIn]
Yu, Jessica [VerfasserIn]
Patel, Arpan [VerfasserIn]
Donahue, Katelyn [VerfasserIn]
Nathan, Hari [VerfasserIn]
Cho, Clifford [VerfasserIn]
Anderson, Michelle A [VerfasserIn]
Sahai, Vaibhav [VerfasserIn]
Lyssiotis, Costas A [VerfasserIn]
Zou, Weiping [VerfasserIn]
Allen, Benjamin L [VerfasserIn]
Rao, Arvind [VerfasserIn]
Crawford, Howard C [VerfasserIn]
Bednar, Filip [VerfasserIn]
Frankel, Timothy L [VerfasserIn]
Pasca di Magliano, Marina [VerfasserIn]

Links:

Volltext

Themen:

CD8+ T cells
Immune checkpoints
Journal Article
Pancreatic cancer
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Single-cell RNA sequencing
TIGIT
Tumor immunology

Anmerkungen:

Date Completed 14.04.2022

Date Revised 07.02.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1038/s43018-020-00121-4

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM328411191