Cited by 423Cancer Immunotherapy and BiomarkersT-cell and B-cell ImmunologyImmunotherapy and Immune Responses

Early B cell changes predict autoimmunity following combination immune checkpoint blockade

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Das, Rituparna, Bar, Noffar, Ferreira, Michelle, Newman, Aaron M., Zhang, Lin, Bailur, Jithendra Kini, Bacchiocchi, Antonella, Kluger, Harriet +5 more·2018·Journal of Clinical Investigation

Abstract

Combination checkpoint blockade (CCB) targeting inhibitory CTLA4 and PD1 receptors holds promise for cancer therapy. Immune-related adverse events (IRAEs) remain a major obstacle for the optimal application of CCB in cancer. Here, we analyzed B cell changes in patients with melanoma following treatment with either anti-CTLA4 or anti-PD1, or in combination. CCB therapy led to changes in circulating B cells that were detectable after the first cycle of therapy and characterized by a decline in circulating B cells and an increase in CD21lo B cells and plasmablasts. PD1 expression was higher in the CD21lo B cells, and B cell receptor sequencing of these cells demonstrated greater clonality and a higher frequency of clones compared with CD21hi cells. CCB induced proliferation in the CD21lo compartment, and single-cell RNA sequencing identified B cell activation in cells with genomic profiles of CD21lo B cells in vivo. Increased clonality of circulating B cells following CCB occurred in some patients. Treatment-induced changes in B cells preceded and correlated with both the frequency and timing of IRAEs. Patients with early B cell changes experienced higher rates of grade 3 or higher IRAEs 6 months after CCB. Thus, early changes in B cells following CCB may identify patients who are at increased risk of IRAEs, and preemptive strategies targeting B cells may reduce toxicities in these patients.

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  • Rarely, irAEs may be fatal, including about 0.35% of those treated with anti-PD-1/PD-L1 and 1.2% treated with combination therapy.

    “Rarely, some events may be fatal, including ~0.35% of those treated with anti-PD-1/PD-L1, and 1.2% treated with combination therapy.24”

    From Endocrine toxicities of immune checkpoint inhibitors (2021) · cites this paper as [24]

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Authors
Das, R., Bar, N., Ferreira, M., Newman, A. M., Zhang, L., Bailur, J. K., Bacchiocchi, A., Kluger, H., Wei, W., Halaban, R., Sznol, M., Dhodapkar, M. V., & Dhodapkar, K. M.
Affiliations
  • Yale University (US)
  • Institute for Stem Cell Biology and Regenerative Medicine (IN)
  • Yale Cancer Center (US)
Corresponding author
Dhodapkar, Kavita M.
Venue
Journal of Clinical Investigation
Published
2018-01-08
Volume
128
Issue
2
Pages
715-720
ISSN
  • 0021-9738 (ISSN-L)
  • 1558-8238
OpenAlex
W2781484625
Cited by
423
References
18
Citations by year
2026: 35 · 2025: 39 · 2024: 52 · 2023: 64 · 2022: 68 · 2021: 54 · 2020: 53 · 2019: 35 · 2018: 20
FWCI
15.08
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
NIH (CA197603, 1 P50 CA121974)
Topics
  • Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
Keywords
CTLA-4, PD-1, immune-related adverse events, autoimmunity, B cells, CD21low B cells, plasmablasts, melanoma, predictive biomarkers, B cell activation, single-cell RNA sequencing, B-cell depletion
MeSH terms
Aged, B-Lymphocytes, Female, Humans, Immune System, Immunotherapy, Leukocytes, Mononuclear, Male, Melanoma, Middle Aged, Phenotype, Risk, Skin Neoplasms, Autoimmunity, Kaplan-Meier Estimate, CTLA-4 Antigen, Programmed Cell Death 1 Receptor

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