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Updated: Aug 9, 2026

Detection and Enrichment of Rare Antigen-specific B Cells for Analysis of Phenotype and Function
Published on: February 16, 2017
Stimulation of cells by antibody
Antibodies targeting tumor cell surface antigens significantly boosted cell growth and survival in vitro. This antibody-mediated stimulation, observed with various cell lines, suggests potential therapeutic applications for enhancing anti-tumor immunity.
Area of Science:
- Immunology
- Cell Biology
- Oncology
Background:
- Antibodies play a crucial role in the immune response.
- The interaction between antibodies and cell surface antigens is a key area of research in cancer immunology.
Purpose of the Study:
- To investigate the effect of specific antibodies on tumor cell proliferation and survival.
- To explore the potential of antibody-mediated stimulation for enhancing tumor cell growth in vitro.
Main Methods:
- Tumor cell lines were treated with immunoglobulins specific for cell surface antigens.
- Cellular incorporation of [(125)I]iododeoxyuridine and [(3)H]thymidine was measured.
- Cell proliferation and survival rates were compared between antibody-treated and control cells.
Main Results:
- Antibody treatment led to significant increases (up to 200-fold) in DNA synthesis markers.
- Antibody-stimulated cells exhibited enhanced multiplication and extended survival in tissue culture.
- A dose-dependent effect was observed, with low antibody concentrations stimulating growth and high concentrations inducing cytotoxicity.
Conclusions:
- Specific antibodies can promote tumor cell growth and survival in vitro.
- Antibody-dependent cellular stimulation may have implications for enhancing anti-tumor immune responses in vivo.
- Further research is warranted to explore the therapeutic potential of these findings in cancer treatment.
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