Hui, B.* ; Lu, C.* ; Li, H.* ; Hao, X.* ; Liu, H.* ; Zhuo, D.* ; Wang, Q. ; Li, Z.* ; Liu, L.* ; Wang, X.* ; Gu, Y.* ; Tang, W.*
Inhibition of APOE potentiates immune checkpoint therapy for cancer.
Int. J. Biol. Sci. 18, 5230-5240 (2022)
Checkpoint immunotherapy is capable of unleashing T cells for controlling tumor, whereas it is destroyed by immunosuppressive myeloid cell. Apoprotein E (APOE) refers to a ligand in terms of the members of low-density lipoprotein (LDL) receptor family for mediating Apoprotein B-involving atherogenic lipoprotein clearance. Besides, tumor-infiltration macrophage can express APOE. The present study reported Apoe-/- mice to exhibit higher resistance toward the development of three types of carcinomas as compared with mice with wild type and to have greater responses to αPD-1 (anti-PD-1) immunotherapy. Moreover, treatment by exploiting APOE inhibitor (COG 133TFA, αAPOE) was capable of curbing tumor development and fostering regression if in combination of αPD-1. According to single-cell RNA sequencing (scRNA-seq), Apoe deletion was correlated with the decline of C1QC+ and CCR2+ macrophage within tumor infiltration, and mass spectrometry results noticeably showed down-regulated the number of M2 macrophages as well. Furthermore, APOE expression in cancer patients resistant to αPD-1 treatment significantly exceeded that in the sensitive group. For this reason, APOE is likely to be targeted for modifying tumor macrophage infiltrate and augmenting checkpoint immunotherapy.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Scopus
Cited By
Altmetric
Publication type
Article: Journal article
Document type
Scientific Article
Thesis type
Editors
Keywords
Apoe ; Macrophage ; Pd-1 ; Single-cell Rna Sequencing ; Tigit
Keywords plus
Language
english
Publication Year
2022
Prepublished in Year
HGF-reported in Year
2022
ISSN (print) / ISBN
1449-2288
e-ISSN
1449-2288
ISBN
Book Volume Title
Conference Title
Conference Date
Conference Location
Proceedings Title
Quellenangaben
Volume: 18,
Issue: 14,
Pages: 5230-5240
Article Number: ,
Supplement: ,
Series
Publisher
Publishing Place
Day of Oral Examination
0000-00-00
Advisor
Referee
Examiner
Topic
University
University place
Faculty
Publication date
0000-00-00
Application date
0000-00-00
Patent owner
Further owners
Application country
Patent priority
Reviewing status
Peer reviewed
POF-Topic(s)
30205 - Bioengineering and Digital Health
Research field(s)
Enabling and Novel Technologies
PSP Element(s)
G-500390-001
Grants
China Scholarship Council
National Natural Science Foundation of China
Copyright
Erfassungsdatum
2022-09-19