Granzyme B+ B cells detected by single-cell sequencing are associated with prognosis in patients with intrahepatic cholangiocarcinoma following liver transplantation

Abstract B cells possess anti-tumor functions mediated by granzyme B, in addition to their role in antigen presentation and antibody production. However, the variations in granzyme B+ B cells between tumor and non-tumor tissues have been largely unexplored. Therefore, we integrated 25 samples from the Gene Expression Omnibus database and analyzed the tumor immune microenvironment. The findings uncovered significant inter- and intra-tumoral heterogeneity. Notably, single-cell data showed higher proportions of granzyme B+ B cells in tumor samples compared to control samples, and these levels were positively associated with disease-free survival. The elevated levels of granzyme B+ B cells in tumor samples resulted from tumor cell chemotaxis through the MIF- (CD74 + CXCR4) signaling pathway. Furthermore, the anti-tumor function of granzyme B+ B cells in tumor samples was adversely affected, potentially providing an explanation for tumor progression. These findings regarding granzyme B+ B cells were further validated in an independent clinic cohort of 40 liver transplant recipients with intrahepatic cholangiocarcinoma. Our study unveils an interaction between granzyme B+ B cells and intrahepatic cholangiocarcinoma, opening up potential avenues for the development of novel therapeutic strategies against this disease..

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:73

Enthalten in:

Cancer immunology immunotherapy - 73(2024), 3 vom: 22. Feb.

Sprache:

Englisch

Beteiligte Personen:

Zhu, Ji-Qiao [VerfasserIn]
Zhu, Ying [VerfasserIn]
Qi, Man [VerfasserIn]
Zeng, Ye [VerfasserIn]
Liu, Zhen-Jia [VerfasserIn]
Ding, Cheng [VerfasserIn]
Zhang, Tao [VerfasserIn]
Li, Xian-Liang [VerfasserIn]
Han, Dong-Dong [VerfasserIn]
He, Qiang [VerfasserIn]

Links:

Volltext [kostenfrei]

BKL:

44.81

44.45

Themen:

Granzyme B+ B cells
Immune escape
Intrahepatic cholangiocarcinoma
Liver transplantation
Single-cell sequencing

Anmerkungen:

© The Author(s) 2024

doi:

10.1007/s00262-023-03609-x

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

SPR055090079