TY - JOUR
T1 - Progranulin mediates immune evasion of pancreatic ductal adenocarcinoma through regulation of MHCI expression
AU - Cheung, Phyllis F
AU - Yang, JiaJin
AU - Fang, Rui
AU - Borgers, Arianna
AU - Krengel, Kirsten
AU - Stoffel, Anne
AU - Althoff, Kristina
AU - Yip, Chi Wai
AU - Siu, Elaine H L
AU - Ng, Linda W C
AU - Lang, Karl S
AU - Cham, Lamin B
AU - Engel, Daniel R
AU - Soun, Camille
AU - Cima, Igor
AU - Scheffler, Björn
AU - Striefler, Jana K
AU - Sinn, Marianne
AU - Bahra, Marcus
AU - Pelzer, Uwe
AU - Oettle, Helmut
AU - Markus, Peter
AU - Smeets, Esther M M
AU - Aarntzen, Erik H J G
AU - Savvatakis, Konstantinos
AU - Liffers, Sven-Thorsten
AU - Lueong, Smiths S
AU - Neander, Christian
AU - Bazarna, Anna
AU - Zhang, Xin
AU - Paschen, Annette
AU - Crawford, Howard C
AU - Chan, Anthony W H
AU - Cheung, Siu Tim
AU - Siveke, Jens T
N1 - Publisher Copyright:
© 2022, The Author(s).
PY - 2022/12
Y1 - 2022/12
N2 - Immune evasion is indispensable for cancer initiation and progression, although its underlying mechanisms in pancreatic ductal adenocarcinoma (PDAC) are not fully known. Here, we characterize the function of tumor-derived PGRN in promoting immune evasion in primary PDAC. Tumor- but not macrophage-derived PGRN is associated with poor overall survival in PDAC. Multiplex immunohistochemistry shows low MHC class I (MHCI) expression and lack of CD8+ T cell infiltration in PGRN-high tumors. Inhibition of PGRN abrogates autophagy-dependent MHCI degradation and restores MHCI expression on PDAC cells. Antibody-based blockade of PGRN in a PDAC mouse model remarkably decelerates tumor initiation and progression. Notably, tumors expressing LCMV-gp33 as a model antigen are sensitized to gp33-TCR transgenic T cell-mediated cytotoxicity upon PGRN blockade. Overall, our study shows a crucial function of tumor-derived PGRN in regulating immunogenicity of primary PDAC.
AB - Immune evasion is indispensable for cancer initiation and progression, although its underlying mechanisms in pancreatic ductal adenocarcinoma (PDAC) are not fully known. Here, we characterize the function of tumor-derived PGRN in promoting immune evasion in primary PDAC. Tumor- but not macrophage-derived PGRN is associated with poor overall survival in PDAC. Multiplex immunohistochemistry shows low MHC class I (MHCI) expression and lack of CD8+ T cell infiltration in PGRN-high tumors. Inhibition of PGRN abrogates autophagy-dependent MHCI degradation and restores MHCI expression on PDAC cells. Antibody-based blockade of PGRN in a PDAC mouse model remarkably decelerates tumor initiation and progression. Notably, tumors expressing LCMV-gp33 as a model antigen are sensitized to gp33-TCR transgenic T cell-mediated cytotoxicity upon PGRN blockade. Overall, our study shows a crucial function of tumor-derived PGRN in regulating immunogenicity of primary PDAC.
KW - Adenocarcinoma/genetics
KW - Animals
KW - Antibodies, Neutralizing/pharmacology
KW - Antigens, Viral/genetics
KW - Autophagy/drug effects
KW - CD8-Positive T-Lymphocytes/drug effects
KW - Carcinoma, Pancreatic Ductal/genetics
KW - Cell Line, Tumor
KW - Cell Movement/drug effects
KW - Cohort Studies
KW - Cytotoxicity, Immunologic
KW - Gene Expression
KW - Glycoproteins/genetics
KW - Histocompatibility Antigens Class I/genetics
KW - Humans
KW - Lymphocytic choriomeningitis virus/genetics
KW - Mice
KW - Pancreatic Neoplasms/genetics
KW - Peptide Fragments/genetics
KW - Progranulins/antagonists & inhibitors
KW - Proteolysis
KW - Survival Analysis
KW - Tumor Escape/genetics
KW - Tumor Microenvironment/genetics
KW - Viral Proteins/genetics
KW - Xenograft Model Antitumor Assays
UR - http://www.scopus.com/inward/record.url?scp=85122850023&partnerID=8YFLogxK
U2 - 10.1038/s41467-021-27088-9
DO - 10.1038/s41467-021-27088-9
M3 - Article
C2 - 35013174
SN - 2041-1723
VL - 13
JO - Nature Communications
JF - Nature Communications
IS - 1
M1 - 156
ER -