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@ARTICLE{Bao:284944,
author = {J. Bao and A. C. Betzler and J. Hess$^*$ and C. Brunner},
title = {{E}xploring the dual role of {B} cells in solid tumors:
implications for head and neck squamous cell carcinoma.},
journal = {Frontiers in immunology},
volume = {14},
issn = {1664-3224},
address = {Lausanne},
publisher = {Frontiers Media},
reportid = {DKFZ-2023-02144},
pages = {1233085},
year = {2023},
abstract = {In the tumor milieu of head and neck squamous cell
carcinoma (HNSCC), distinct B cell subpopulations are
present, which exert either pro- or anti-tumor activities.
Multiple factors, including hypoxia, cytokines, interactions
with tumor cells, and other immune infiltrating lymphocytes
(TILs), alter the equilibrium between the dual roles of B
cells leading to cancerogenesis. Certain B cell subsets in
the tumor microenvironment (TME) exhibit immunosuppressive
function. These cells are known as regulatory B (Breg)
cells. Breg cells suppress immune responses by secreting a
series of immunosuppressive cytokines, including IL-10,
IL-35, TGF-β, granzyme B, and adenosine or dampen effector
TILs by intercellular contacts. Multiple Breg phenotypes
have been discovered in human and mouse cancer models.
However, when compartmentalized within a tertiary lymphoid
structure (TLS), B cells predominantly play anti-tumor
effects. A mature TLS contains a CD20+ B cell zone with
several important types of B cells, including
germinal-center like B cells, antibody-secreting plasma
cells, and memory B cells. They kill tumor cells via
antibody-dependent cytotoxicity and phagocytosis, and local
complement activation effects. TLSs are also privileged
sites for local T and B cell coordination and activation.
Nonetheless, in some cases, TLSs may serve as a niche for
hidden tumor cells and indicate a bad prognosis. Thus, TIL-B
cells exhibit bidirectional immune-modulatory activity and
are responsive to a variety of immunotherapies. In this
review, we discuss the functional distinctions between
immunosuppressive Breg cells and immunogenic effector B
cells that mature within TLSs with the focus on tumors of
HNSCC patients. Additionally, we review contemporary
immunotherapies that aim to target TIL-B cells. For the
development of innovative therapeutic approaches to
complement T-cell-based immunotherapy, a full understanding
of either effector B cells or Breg cells is necessary.},
subtyp = {Review Article},
keywords = {head and neck cancer (Other) / immunotherapy (Other) /
regulatory B cells (Other) / tertiary lymphoid structures
(Other) / tumor microenvironment (Other) /
tumor-infiltrating lymphocytes (Other)},
cin = {E221},
ddc = {610},
cid = {I:(DE-He78)E221-20160331},
pnm = {315 - Bildgebung und Radioonkologie (POF4-315)},
pid = {G:(DE-HGF)POF4-315},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:37868967},
pmc = {pmc:PMC10586314},
doi = {10.3389/fimmu.2023.1233085},
url = {https://inrepo02.dkfz.de/record/284944},
}