Cited by 170T-cell and B-cell ImmunologyProtein Kinase Regulation and GTPase SignalingNF-κB Signaling Pathways

Phospholipase C-γ2 and Vav cooperate within signaling microclusters to propagate B cell spreading in response to membrane-bound antigen

Open access
Weber, Michele, Treanor, Bebhinn, Depoil, David, Shinohara, Hisaaki, Harwood, Naomi E., Hikida, Masaki, Kurosaki, Tomohiro, Batista, Facundo D.·2008·The Journal of Experimental Medicine

Abstract

B cell receptor (BCR) recognition of membrane-bound antigen initiates a spreading and contraction response, the extent of which is controlled through the formation of signaling-active BCR-antigen microclusters and ultimately affects the outcome of B cell activation. We followed a genetic approach to define the molecular requirements of BCR-induced spreading and microcluster formation. We identify a key role for phospholipase C-γ2 (PLCγ2), Vav, B cell linker, and Bruton's tyrosine kinase in the formation of highly coordinated “microsignalosomes,” the efficient assembly of which is absolutely dependent on Lyn and Syk. Using total internal reflection fluorescence microscopy, we examine at high resolution the recruitment of PLCγ2 and Vav to microsignalosomes, establishing a novel synergistic relationship between the two. Thus, we demonstrate the importance of cooperation between components of the microsignalosome in the amplification of signaling and propagation of B cell spreading, which is critical for appropriate B cell activation.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1084/jem.20072619

Cites

84 of 84 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • PLCγ2 activation results in activation of phospholipase D and cell spreading, and brings on Erk signaling.

    “In addition to the production of IP3, DAG, and calcium flux, PLCγ2 activation results in activation of phospholipase D and cell spreading (12, 13, 14, 15, 16, 17), bringing on other vital cell signaling processes such as Erk (18).”

    From The role of PLCγ2 in immunological disorders, cancer, and neurodegeneration (2021) · cites this paper as [17]

    The Results section (‘PLCγ2 recruitment to antigen microclusters is required for cell spreading’; page unavailable) reports that PLCγ2-deficient B cells have markedly impaired spreading in response to membrane-bound antigen. The paper does not report activation of phospholipase D by PLCγ2. Erk is attached to a separate citation (18) in the citing sentence, though this paper’s Discussion mentions PLCγ2-dependent Erk signaling. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Efficient assembly of the microsignalosomes is absolutely dependent on Lyn and Syk.

    “Very interestingly, efficient assembly of the latter is absolutely dependent on Lyn and Syk (55).”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Weber, M., Treanor, B., Depoil, D., Shinohara, H., Harwood, N. E., Hikida, M., Kurosaki, T., & Batista, F. D.
Affiliations
  • Cancer Research UK (GB)
  • RIKEN (JP)
Venue
The Journal of Experimental Medicine
Published
2008-03-24
Volume
205
Issue
4
Pages
853-868
ISSN
  • 0022-1007 (ISSN-L)
  • 1540-9538
OpenAlex
W2135715200
Cited by
170
References
84
Citations by year
2026: 2 · 2025: 4 · 2024: 7 · 2023: 4 · 2022: 5 · 2021: 9 · 2020: 4 · 2019: 8 · 2018: 11 · 2017: 10 · 2016: 9 · 2015: 12 · 2014: 13 · 2013: 13 · 2012: 10
FWCI
6.84
Type
journal article
Language
en
Open access
Licence
cc-by-nc-sa
Locations
  • The Journal of Experimental Medicine (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
Funders
Cancer Research UK
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
Keywords
PLCγ2, Vav, B cell receptor signaling, membrane-bound antigen, Bruton's tyrosine kinase, Lyn kinase, Syk, B cell activation, signal propagation
MeSH terms
Syk Kinase, Animals, Antigens, B-Lymphocytes, Cell Membrane, Cell Movement, Chickens, Models, Biological, Protein Binding, Protein-Tyrosine Kinases, Signal Transduction, src-Family Kinases, Intracellular Signaling Peptides and Proteins, Mice, Rats, Proto-Oncogene Proteins c-vav, Phospholipase C gamma, Inositol 1,4,5-Trisphosphate Receptors

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review