ArticleFrontiers in immunology2025
CD47 regulates antigen modulation and red blood cell clearance following an incompatible transfusion.
Article in Frontiers in immunology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Photothermal therapy synergizes with CD47 blockade by inducing calreticulin exposure and remodeling the tumor extracellular matrix in oral squamous cell carcinoma.Cancer immunology, immunotherapy : CII · 2026Article
- Ubiquitination and degradation of CD47 enhances macrophage phagocytosis of hemolytic erythrocytes.iScience · 2026Article
- Examination of Antigen-Specific B Cell Responses to Red Blood Cell Transfusion.Methods in molecular biology (Clifton, N.J.) · 2026Article
- Determining the Binding Affinity in Monoclonal Antibody-Alloantigen Interactions.Methods in molecular biology (Clifton, N.J.) · 2026Article
- Analysis of Galectin Binding to Blood Group Expressing Bacteria.Methods in molecular biology (Clifton, N.J.) · 2026Article
- Expression and Characterization of Blood Group Binding Lectins.Methods in molecular biology (Clifton, N.J.) · 2026Article
- Use of Microbial Microarrays to Define Antibody Specificity.Methods in molecular biology (Clifton, N.J.) · 2026Article
- Anemia and Transfusion in Preclinical Models of Neonatology.Methods in molecular biology (Clifton, N.J.) · 2026Article
- Analysis of Biotinylated Red Blood Cells Following Transfusion.Methods in molecular biology (Clifton, N.J.) · 2026Article
- Acute Incompatible Red Blood Cell Transfusion in Mice.Methods in molecular biology (Clifton, N.J.) · 2026Article
- A Flow Cytometric Method of Determining CD71+ Erythroid Cells in Neonatal Whole Blood.Methods in molecular biology (Clifton, N.J.) · 2026Article
- Acute Incompatible Red Blood Cell Transfusion in Mice.Methods in molecular biology (Clifton, N.J.) · 2026Article
- Examination of Antigen-Specific B Cell Responses to Red Blood Cell Transfusion.Methods in molecular biology (Clifton, N.J.) · 2026Article
- Review
- Babesiosis and Malaria in the United States: Epidemiology, Research Funding, Medical Progress, & Recommendations for Improvement.Epidemiologia (Basel, Switzerland) · 2025Article
- Glutathione-Responsive Folate-Targeted Prodrugs: Tumor-Specific PD-L1 and CD47 Blockade.Molecules (Basel, Switzerland) · 2025Article
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Authors and funding
8 authors.
Funding
Abstract
Red blood cell (RBC) alloantibodies can result in the rapid removal of incompatible RBCs following transfusion. However, antibody-mediated clearance of RBCs is not the inevitable outcome of an incompatible transfusion. Antibody engagement can also result in the modulation of the target antigen, often rendering RBCs resistant to antibody-mediated removal. Despite this, the factors that regulate antibody-induced RBC removal or antigen modulation remain incompletely understood. Given the ability of CD47 to regulate RBC survival in general, we examined the possible role of CD47 in governing antibody-mediated RBC clearance and antigen modulation. This was achieved by crossing the well-established HEL-OVA-Duffy (HOD) mouse model with CD47 knockout (KO) mice to generate offspring that express the HOD antigen and either WT (HOD CD47 WT), heterozygote (HOD CD47 HET) or KO (HOD CD47 KO) levels of CD47. Using the commonly employed anti-HEL immunization model, our results demonstrate that while antibody engagement of HOD CD47 WT RBCs resulted in rapid antigen modulation in the absence of detectable RBC clearance, antibody binding to HOD CD47 HET RBCs did result in detectable RBC removal despite similar rates and overall levels of antigen modulation. In contrast, despite accelerated clearance of HOD CD47 KO RBCs in the absence of anti-HEL antibodies, the rate of RBC removal and antigen modulation was enhanced in the presence of anti-HEL antibodies. Taken together, these results suggest a role for CD47 in regulating the overall consequence of an incompatible RBC transfusion.
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