Cited by 193Protein Kinase Regulation and GTPase SignalingImmune Response and InflammationChemokine receptors and signaling

RhoA as a Key Regulator of Innate and Adaptive Immunity

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Bros, Matthias, Haas, Katharina, Moll, Lorna, Grabbe, Stephan·2019·Cells

Abstract

RhoA is a ubiquitously expressed cytoplasmic protein that belongs to the family of small GTPases. RhoA acts as a molecular switch that is activated in response to binding of chemokines, cytokines, and growth factors, and via mDia and the ROCK signaling cascade regulates the activation of cytoskeletal proteins, and other factors. This review aims to summarize our current knowledge on the role of RhoA as a general key regulator of immune cell differentiation and function. The contribution of RhoA for the primary functions of innate immune cell types, namely neutrophils, macrophages, and conventional dendritic cells (DC) to (i) get activated by pathogen-derived and endogenous danger signals, (ii) migrate to sites of infection and inflammation, and (iii) internalize pathogens has been fairly established. In activated DC, which constitute the most potent antigen-presenting cells of the immune system, RhoA is also important for the presentation of pathogen-derived antigen and the formation of an immunological synapse between DC and antigen-specific T cells as a prerequisite to induce adaptive T cell responses. In T cells and B cells as the effector cells of the adaptive immune system Rho signaling is pivotal for activation and migration. More recently, mutations of Rho and Rho-modulating factors have been identified to predispose for autoimmune diseases and as causative for hematopoietic malignancies.

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Crossref · 10.3390/cells8070733

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  • The ability of taxanes to activate RhoA can be relevant for understanding their efficacy in cancer therapy, because RhoA can promote anti-tumour immune responses.

    “The ability of taxanes to activate RhoA can be relevant for understanding their efficacy in cancer therapy, because RhoA can promote anti-tumour immune responses 19,75,76 .”

    From Taxane-induced conformational changes in the microtubule lattice activate GEF-H1-dependent RhoA signalling (2026) · cites this paper as [75]

    Section 3.2 describes RhoA’s role in T-cell activation and migration, supporting the general point that RhoA can facilitate immune responses. Section 3.1 mentions anti-tumour immune responses, but does not establish that RhoA promotes them; the paper also does not link taxane-induced RhoA activation to cancer-treatment efficacy. The taxane-activation point may be covered by the sentence’s other citations. (LLM, conf=0.80)

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Research works printed but not linked: 1

  1. [210]Tak W. Mak M.E.S. Jett B.D. Chapter 10—Regulation of Immune Responses in the Periphery Primer to the Immune Response 2nd ed. Elsevier Amsterdam, The Netherlands 2014 227 246

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Authors
Bros, M., Haas, K., Moll, L., & Grabbe, S.
Affiliations
University Medical Center of the Johannes Gutenberg University Mainz (DE)
Corresponding author
Bros, Matthias
Venue
Cells
Publisher
MDPI AG
Published
2019-07-17
Volume
8
Issue
7
Pages
733
ISSN
2073-4409 (ISSN-L)
OpenAlex
W2959814266
Cited by
193
References
234
Citations by year
2026: 16 · 2025: 19 · 2024: 28 · 2023: 36 · 2022: 27 · 2021: 44 · 2020: 19 · 2019: 2 · 2018: 2
FWCI
2.03
Type
journal article
Language
en
Open access
Locations
  • Cells (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Deutsche Forschungsgemeinschaft (TR156, B01)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Health Sciences › Medicine › Oncology › Chemokine receptors and signaling
Keywords
RhoA, small GTPases, innate immunity, adaptive immunity, neutrophils, macrophages, dendritic cells, immunological synapse, T cell activation, B cell activation, cell migration, cytoskeleton, Rho GTPase signaling, autoimmune disease, hematologic malignancies, antigen presentation
MeSH terms
Animals, Cell Differentiation, Humans, Immunity, Innate, Signal Transduction, rhoA GTP-Binding Protein, Adaptive Immunity

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