Abstract
Previous studies have shown that Raji, an Epstein-Barr virus (EBV)-immortalized Burkitt lymphoma B cell line, contains functional platelet-activating factor (PAF) receptors. Twelve other lymphoid cell lines, including Burkitt and non-Burkitt B cell lines, T cell lines, and a non B, non T cell line were tested for the presence of PAF receptors. Radioligand binding studies conducted at 4 °C revealed that six lymphoid cell lines of B cell origin (Raji, P3HR-1, BJAB, BJA/HR-1, Dakiki and PB-1) could specifically bind [3H]PAF. Treatment of four (Raji, P3HR-1, Dakiki and PB-1) of the above lymphoid cell lines with PAF resulted in an increase in free intracellular calcium, indicating that these specific PAF binding sites were functional PAF receptors. Other B cell lines (Daudi, B95-8, sfBT, CB-1), T cell lines (MOLT-4, CCRF-CEM) and a non B, non T cell line (NALM-6) had no PAF binding sites and showed no PAF-induced increase in intracellular calcium levels. These studies demonstrate evidence for the presence of PAF receptors on several B lymphocyte cell lines.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1755-1760 |
| Number of pages | 6 |
| Journal | Life Sciences |
| Volume | 49 |
| Issue number | 23 |
| DOIs | |
| State | Published - 1991 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Pharmacology
Cite this
Evidence for platelet-activating factor receptors in several B lymphoblastoid cell lines. / Travers, Jeffrey; Shaw, James E.; Li, Qian; Kniss, Douglas A.; Fertel, Richard H.
In: Life Sciences, Vol. 49, No. 23, 1991, p. 1755-1760.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Evidence for platelet-activating factor receptors in several B lymphoblastoid cell lines
AU - Travers, Jeffrey
AU - Shaw, James E.
AU - Li, Qian
AU - Kniss, Douglas A.
AU - Fertel, Richard H.
PY - 1991
Y1 - 1991
N2 - Previous studies have shown that Raji, an Epstein-Barr virus (EBV)-immortalized Burkitt lymphoma B cell line, contains functional platelet-activating factor (PAF) receptors. Twelve other lymphoid cell lines, including Burkitt and non-Burkitt B cell lines, T cell lines, and a non B, non T cell line were tested for the presence of PAF receptors. Radioligand binding studies conducted at 4 °C revealed that six lymphoid cell lines of B cell origin (Raji, P3HR-1, BJAB, BJA/HR-1, Dakiki and PB-1) could specifically bind [3H]PAF. Treatment of four (Raji, P3HR-1, Dakiki and PB-1) of the above lymphoid cell lines with PAF resulted in an increase in free intracellular calcium, indicating that these specific PAF binding sites were functional PAF receptors. Other B cell lines (Daudi, B95-8, sfBT, CB-1), T cell lines (MOLT-4, CCRF-CEM) and a non B, non T cell line (NALM-6) had no PAF binding sites and showed no PAF-induced increase in intracellular calcium levels. These studies demonstrate evidence for the presence of PAF receptors on several B lymphocyte cell lines.
AB - Previous studies have shown that Raji, an Epstein-Barr virus (EBV)-immortalized Burkitt lymphoma B cell line, contains functional platelet-activating factor (PAF) receptors. Twelve other lymphoid cell lines, including Burkitt and non-Burkitt B cell lines, T cell lines, and a non B, non T cell line were tested for the presence of PAF receptors. Radioligand binding studies conducted at 4 °C revealed that six lymphoid cell lines of B cell origin (Raji, P3HR-1, BJAB, BJA/HR-1, Dakiki and PB-1) could specifically bind [3H]PAF. Treatment of four (Raji, P3HR-1, Dakiki and PB-1) of the above lymphoid cell lines with PAF resulted in an increase in free intracellular calcium, indicating that these specific PAF binding sites were functional PAF receptors. Other B cell lines (Daudi, B95-8, sfBT, CB-1), T cell lines (MOLT-4, CCRF-CEM) and a non B, non T cell line (NALM-6) had no PAF binding sites and showed no PAF-induced increase in intracellular calcium levels. These studies demonstrate evidence for the presence of PAF receptors on several B lymphocyte cell lines.
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UR - http://www.scopus.com/inward/citedby.url?scp=0026076397&partnerID=8YFLogxK
U2 - 10.1016/0024-3205(91)90318-6
DO - 10.1016/0024-3205(91)90318-6
M3 - Article
VL - 49
SP - 1755
EP - 1760
JO - Life Sciences
JF - Life Sciences
SN - 0024-3205
IS - 23
ER -