Cited by 31T-cell and B-cell ImmunologyNF-κB Signaling PathwaysCytokine Signaling Pathways and Interactions

B Cell Receptor (BCR) Cross-Talk: IL-4 Creates an Alternate Pathway for BCR-Induced ERK Activation That Is Phosphatidylinositol 3-Kinase Independent

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Guo, Benchang, Rothstein, Thomas L·2005·The Journal of Immunology

Abstract

IL-4 has pleiotropic effects on B cells. These effects include alteration of subsequent BCR-triggered responses. To identify a molecular basis for this receptor cross-talk, we examined ERK activation and NF-κB induction. We found that treatment with IL-4, but not other cytokines, affected subsequent BCR signaling by creating a new pathway in which the need for PI3K in ERK activation was eliminated. In contrast, the need for PI3K in NF-κB induction was not altered. The new pathway for ERK required time to develop, depended on STAT6, and was blocked by inhibition of macromolecular synthesis. As in the classical pathway, BCR-induced ERK activation in the new, PI3K-independent pathway required MEK and was reflected in c-Raf. Thus, IL-4 promotes an alternate pathway through which BCR is coupled to Raf/MEK/ERK that may function to heighten the responsiveness of B cells during times of immunological stress.

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Crossref · 10.4049/jimmunol.174.9.5375

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  • Alternative signaling pathways through CD38, CD40, IL-4R, LPS/TLR4/MyD88, and CD86 also utilize PLCγ2, while TGF-βR stimulation inhibits PLCγ2 function in B cells.

    “Aside from BCR engagement, there are alternative signaling pathways initiated through extracellular immunological receptors that also utilize PLCγ2 to function, which include CD38 (16), CD40 (52), IL-4R (53, 54, 55) and the LPS/TLR4/MyD88 pathway, the latter of which induces ERK and NK-κB phosphorylation in MEKs in a PI3K-independent fashion (56). CD86 engagement was also observed to signal via PL”

    From The role of PLCγ2 in immunological disorders, cancer, and neurodegeneration (2021) · cites this paper as [55]

    The claim attributes PLCγ2 use to the IL-4R-associated alternative pathway. The Discussion (page unavailable) says instead that IL-4 treatment creates an alternative pathway for BCR-induced ERK activation that operates independently of PLCγ2; the Results section on PLC independence likewise says IL-4 eliminates the requirement for PLCγ2. This paper does not establish the other receptor pathways listed in the claim. (LLM, conf=0.88)

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Authors
Guo, B., & Rothstein, T. L.
Affiliations
Boston University (US)
Corresponding author
Guo, Benchang
Venue
The Journal of Immunology
Published
2005-05-01
Volume
174
Issue
9
Pages
5375-5381
ISSN
  • 0022-1767 (ISSN-L)
  • 1550-6606
OpenAlex
W1894411297
Cited by
31
References
54
Citations by year
2026: 1 · 2024: 1 · 2022: 1 · 2021: 4 · 2020: 2 · 2018: 2 · 2016: 2 · 2014: 1 · 2013: 3
FWCI
1.17
Type
journal article
Language
en
Open access
Locations
  • The Journal of Immunology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • U.S. Public Health Service
  • National Institute of Allergy and Infectious Diseases (AI-40181)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
  • Health Sciences › Medicine › Oncology › Cytokine Signaling Pathways and Interactions
Keywords
B cell receptor signaling, IL-4, ERK activation, Raf/MEK/ERK pathway, STAT6, receptor cross-talk, immune stress
MeSH terms
Animals, B-Lymphocytes, Cells, Cultured, Enzyme Activation, Male, Mice, Inbred BALB C, Mice, Transgenic, Phosphorylation, Receptors, Antigen, B-Cell, Signal Transduction, Trans-Activators, Interleukin-4, NF-kappa B, Mice, Knockout, Phosphatidylinositol 3-Kinases, Proto-Oncogene Proteins c-raf, Mitogen-Activated Protein Kinase 1, Receptor Cross-Talk, Extracellular Signal-Regulated MAP Kinases, STAT6 Transcription Factor, Mice

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