HIV infection is associated with compromised tumor microenvironment adaptive immune reactivity in Hodgkin Lymphoma.
Details
Serval ID
serval:BIB_D343689440C2
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
HIV infection is associated with compromised tumor microenvironment adaptive immune reactivity in Hodgkin Lymphoma.
Journal
Blood advances
ISSN
2473-9537 (Electronic)
ISSN-L
2473-9529
Publication state
In Press
Peer-reviewed
Oui
Language
english
Notes
Publication types: Journal Article
Publication Status: aheadofprint
Publication Status: aheadofprint
Abstract
The impact of Human Immunodeficiency Virus (HIV) infection on the tumor microenvironment (TME) of classic Hodgkin lymphoma (cHL), one of the most common co-morbidities following HIV infection, is not well understood. Here, we have employed multiplexed immunofluorescence (mIF) and spatial transcriptomic analysis to dissect the impact of viral infections (EBV, HIV/EBV) on cHL TME. Compared to HIV-EBV-, HIV-EBV+ cHL TME was characterized by higher cell densities of CD8high T cells co-expressing inhibitory receptors (PD-1, TIGIT), macrophage subsets and an in situ inflammatory molecular profile associated with increased expression of TCR and BCR cell signaling pathways. Compared to HIV-EBV+, HIV+EBV+ cHL TME was characterized by significantly less CD8high T cells co-expressing PD-1 and TIGIT, a profile concomitant with significantly increased cell densities of CD155high neoplastic cells. Significant downregulation of in situ TCR-signaling and upregulation of extracellular matrix reorganization pathways were found in HIV+EBV+ cHL TME, in line with an altered topological organization of CXCL13 and heparan sulfate, an extracellular matrix glycosaminoglycan. Our data reveal the complexity of the cellular and molecular composition of cHL TME in the presence of viral infections, with possible implications for combinatorial immunotherapies. Furthermore, the data suggest specific molecular targets and pathways for further investigation that could improve our understanding of possible mechanistic links between HIV and lymphomagenesis.
Pubmed
Open Access
Yes
Create date
09/08/2024 14:32
Last modification date
10/08/2024 6:30