Related Experiment Video
Updated: Aug 9, 2026

Generation of Human CD40-activated B cells
Published on: October 17, 2009
Interleukin-13 responsiveness and interleukin-13 receptor expression in non-Hodgkin's lymphoma and reactive lymph
Insights
Interleukin-13 (IL-13) supports non-Hodgkin's lymphoma (NHL) B cell growth and survival. Responsiveness to IL-13 in NHL B cells is linked to IL-13 receptor expression and CD40 activation.
Area of Science:
- Immunology
- Oncology
- Cell Biology
Background:
- Interleukin-13 (IL-13) is a cytokine involved in immune responses.
- B cells play a crucial role in both normal immune function and lymphomagenesis.
- Understanding cytokine signaling in B cells is vital for developing targeted therapies.
Purpose of the Study:
- To investigate the responsiveness of B cells from non-Hodgkin's lymphoma (NHL) patients to IL-13.
- To determine the role of IL-13 receptors (IL-13R) and CD40 activation in IL-13 responsiveness.
- To explore the potential impact of IL-13 on NHL B cell proliferation and survival.
Main Methods:
- Proliferation assays were performed on lymph node B cells from NHL patients and healthy donors.
- Binding experiments using radiolabeled IL-13 were conducted to assess IL-13 receptor expression.
- CD40 activation and IL-10 treatment were used to modulate B cell responses.
Main Results:
- A subset of NHL B cells exhibited IL-13 responsiveness without co-activation.
- CD40 activation induced IL-13 responsiveness in previously unresponsive NHL and reactive B cells.
- IL-13R expression correlated with IL-13 responsiveness, and CD40 activation upregulated IL-13R.
- IL-13 enhanced the viability of cultured NHL cells, but not non-malignant cells.
Conclusions:
- IL-13 may promote growth and survival advantages for NHL B cells.
- IL-13 signaling, modulated by IL-13R and CD40, represents a potential therapeutic target in NHL.
Abstract:
Interleukin-13 (IL-13) responsiveness was examined in lymph node B cells from patients with non-Hodgkin's lymphoma (NHL) and patients with benign reactive immune disorders. Proliferation assays showed that NHL B cells from 8 of 21 patients responded to IL-13 in the absence of a co-activation signal. IL-13-unresponsive NHL B cells from 9 of the 13 remaining patients were induced to respond to IL-13 upon antibody-triggered CD40 activation, as did reactive B cells. Binding experiments with radiolabeled IL-13 revealed that the constitutive expression of IL-13 receptors (IL-13R) was associated with IL-13 responsiveness in the absence of CD40 activation. In IL-13-unresponsive cells, IL-13R expression was induced after CD40 activation. This effect was enhanced by IL-10, which was able to potentiate the IL-13 response of CD40-activated cells. Furthermore, IL-13 was found to increase the viability of cultured NHL cells, but not that of non-malignant cells. These results suggest that IL-13, which behaves as a potent co-factor for normal lymph node B cell activation, might provide growth and/or survival advantages to NHL B cells.
Related Concept Videos
T Cell Activation and Clonal Selection
Naive T cells that have not yet encountered an antigen express two primary CD...
T Cell Types and Functions
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...

