Loss of EGF binding and cation transport response during differentiation of mouse neuroblastoma cells

Mummery, C. L. ; van der Saag, P. T. ; de Laat, S. W.

New York, N.Y. : Wiley-Blackwell
Published 1983
ISSN:
0730-2312
Keywords:
neuroblastoma ; differentiation ; EGF ; binding assay ; K+ transport ; Na+ transport ; amiloride ; growth stimulation ; Life and Medical Sciences ; Cell & Developmental Biology
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Biology
Chemistry and Pharmacology
Medicine
Notes:
Mouse neuroblastoma cells (clone N1E-115) differentiate in culture upon withdrawal of serum growth factors and acquire the characteristics of neurons. We have shown that exponentially growing N1E-115 cells possess functional epidermal growth factor (EGF) receptors but that the capacity for binding EGF and for stimulation of DNA synthesis is lost as the cells differentiate. Furthermore, in exponentially growing cells, EGF induces a rapid increase in amiloride-sensitive Na+ influx, followed by stimulation of the (Na+ -K+)ATPase, indicating that activation of the Na+/H+ exchange mechanism in N1E-115 cells [1] may be induced by EGF. The ionic response is also lost during differentiation, but we have shown that the stimulation of both Na+ and K+ influx is directly proportional to the number of occupied receptors in all cells whether exponentially growing or differentiating, thus only indirectly dependent on the external EGF concentration. The linearity of the relationships indicates that there is no rate-limiting step between EGF binding and the ionic response. Our data would suggest that as neuroblastoma cells differentiate and acquire neuronal properties, their ability to respond to mitogens, both biologically and in the activation of cation transport processes, progressively decreases owing to the loss of the appropriate receptors.
Additional Material:
8 Ill.
Type of Medium:
Electronic Resource
URL:
_version_ 1798297838777532416
addmaterial 8 Ill.
autor Mummery, C. L.
van der Saag, P. T.
de Laat, S. W.
autorsonst Mummery, C. L.
van der Saag, P. T.
de Laat, S. W.
book_url http://dx.doi.org/10.1002/jcb.240210108
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iqvoc_00000124:transport
iqvoc_descriptor_title iqvoc_00000124:transport
issn 0730-2312
journal_name Journal of Cellular Biochemistry
materialart 1
notes Mouse neuroblastoma cells (clone N1E-115) differentiate in culture upon withdrawal of serum growth factors and acquire the characteristics of neurons. We have shown that exponentially growing N1E-115 cells possess functional epidermal growth factor (EGF) receptors but that the capacity for binding EGF and for stimulation of DNA synthesis is lost as the cells differentiate. Furthermore, in exponentially growing cells, EGF induces a rapid increase in amiloride-sensitive Na+ influx, followed by stimulation of the (Na+ -K+)ATPase, indicating that activation of the Na+/H+ exchange mechanism in N1E-115 cells [1] may be induced by EGF. The ionic response is also lost during differentiation, but we have shown that the stimulation of both Na+ and K+ influx is directly proportional to the number of occupied receptors in all cells whether exponentially growing or differentiating, thus only indirectly dependent on the external EGF concentration. The linearity of the relationships indicates that there is no rate-limiting step between EGF binding and the ionic response. Our data would suggest that as neuroblastoma cells differentiate and acquire neuronal properties, their ability to respond to mitogens, both biologically and in the activation of cation transport processes, progressively decreases owing to the loss of the appropriate receptors.
package_name Wiley-Blackwell
publikationsjahr_anzeige 1983
publikationsjahr_facette 1983
publikationsjahr_intervall 8019:1980-1984
publikationsjahr_sort 1983
publikationsort New York, N.Y.
publisher Wiley-Blackwell
reference 21 (1983), S. 63-75
schlagwort neuroblastoma
differentiation
EGF
binding assay
K+ transport
Na+ transport
amiloride
growth stimulation
Life and Medical Sciences
Cell & Developmental Biology
search_space articles
shingle_author_1 Mummery, C. L.
van der Saag, P. T.
de Laat, S. W.
shingle_author_2 Mummery, C. L.
van der Saag, P. T.
de Laat, S. W.
shingle_author_3 Mummery, C. L.
van der Saag, P. T.
de Laat, S. W.
shingle_author_4 Mummery, C. L.
van der Saag, P. T.
de Laat, S. W.
shingle_catch_all_1 Mummery, C. L.
van der Saag, P. T.
de Laat, S. W.
Loss of EGF binding and cation transport response during differentiation of mouse neuroblastoma cells
neuroblastoma
differentiation
EGF
binding assay
K+ transport
Na+ transport
amiloride
growth stimulation
Life and Medical Sciences
Cell & Developmental Biology
neuroblastoma
differentiation
EGF
binding assay
K+ transport
Na+ transport
amiloride
growth stimulation
Life and Medical Sciences
Cell & Developmental Biology
Mouse neuroblastoma cells (clone N1E-115) differentiate in culture upon withdrawal of serum growth factors and acquire the characteristics of neurons. We have shown that exponentially growing N1E-115 cells possess functional epidermal growth factor (EGF) receptors but that the capacity for binding EGF and for stimulation of DNA synthesis is lost as the cells differentiate. Furthermore, in exponentially growing cells, EGF induces a rapid increase in amiloride-sensitive Na+ influx, followed by stimulation of the (Na+ -K+)ATPase, indicating that activation of the Na+/H+ exchange mechanism in N1E-115 cells [1] may be induced by EGF. The ionic response is also lost during differentiation, but we have shown that the stimulation of both Na+ and K+ influx is directly proportional to the number of occupied receptors in all cells whether exponentially growing or differentiating, thus only indirectly dependent on the external EGF concentration. The linearity of the relationships indicates that there is no rate-limiting step between EGF binding and the ionic response. Our data would suggest that as neuroblastoma cells differentiate and acquire neuronal properties, their ability to respond to mitogens, both biologically and in the activation of cation transport processes, progressively decreases owing to the loss of the appropriate receptors.
0730-2312
07302312
Wiley-Blackwell
shingle_catch_all_2 Mummery, C. L.
van der Saag, P. T.
de Laat, S. W.
Loss of EGF binding and cation transport response during differentiation of mouse neuroblastoma cells
neuroblastoma
differentiation
EGF
binding assay
K+ transport
Na+ transport
amiloride
growth stimulation
Life and Medical Sciences
Cell & Developmental Biology
neuroblastoma
differentiation
EGF
binding assay
K+ transport
Na+ transport
amiloride
growth stimulation
Life and Medical Sciences
Cell & Developmental Biology
Mouse neuroblastoma cells (clone N1E-115) differentiate in culture upon withdrawal of serum growth factors and acquire the characteristics of neurons. We have shown that exponentially growing N1E-115 cells possess functional epidermal growth factor (EGF) receptors but that the capacity for binding EGF and for stimulation of DNA synthesis is lost as the cells differentiate. Furthermore, in exponentially growing cells, EGF induces a rapid increase in amiloride-sensitive Na+ influx, followed by stimulation of the (Na+ -K+)ATPase, indicating that activation of the Na+/H+ exchange mechanism in N1E-115 cells [1] may be induced by EGF. The ionic response is also lost during differentiation, but we have shown that the stimulation of both Na+ and K+ influx is directly proportional to the number of occupied receptors in all cells whether exponentially growing or differentiating, thus only indirectly dependent on the external EGF concentration. The linearity of the relationships indicates that there is no rate-limiting step between EGF binding and the ionic response. Our data would suggest that as neuroblastoma cells differentiate and acquire neuronal properties, their ability to respond to mitogens, both biologically and in the activation of cation transport processes, progressively decreases owing to the loss of the appropriate receptors.
0730-2312
07302312
Wiley-Blackwell
shingle_catch_all_3 Mummery, C. L.
van der Saag, P. T.
de Laat, S. W.
Loss of EGF binding and cation transport response during differentiation of mouse neuroblastoma cells
neuroblastoma
differentiation
EGF
binding assay
K+ transport
Na+ transport
amiloride
growth stimulation
Life and Medical Sciences
Cell & Developmental Biology
neuroblastoma
differentiation
EGF
binding assay
K+ transport
Na+ transport
amiloride
growth stimulation
Life and Medical Sciences
Cell & Developmental Biology
Mouse neuroblastoma cells (clone N1E-115) differentiate in culture upon withdrawal of serum growth factors and acquire the characteristics of neurons. We have shown that exponentially growing N1E-115 cells possess functional epidermal growth factor (EGF) receptors but that the capacity for binding EGF and for stimulation of DNA synthesis is lost as the cells differentiate. Furthermore, in exponentially growing cells, EGF induces a rapid increase in amiloride-sensitive Na+ influx, followed by stimulation of the (Na+ -K+)ATPase, indicating that activation of the Na+/H+ exchange mechanism in N1E-115 cells [1] may be induced by EGF. The ionic response is also lost during differentiation, but we have shown that the stimulation of both Na+ and K+ influx is directly proportional to the number of occupied receptors in all cells whether exponentially growing or differentiating, thus only indirectly dependent on the external EGF concentration. The linearity of the relationships indicates that there is no rate-limiting step between EGF binding and the ionic response. Our data would suggest that as neuroblastoma cells differentiate and acquire neuronal properties, their ability to respond to mitogens, both biologically and in the activation of cation transport processes, progressively decreases owing to the loss of the appropriate receptors.
0730-2312
07302312
Wiley-Blackwell
shingle_catch_all_4 Mummery, C. L.
van der Saag, P. T.
de Laat, S. W.
Loss of EGF binding and cation transport response during differentiation of mouse neuroblastoma cells
neuroblastoma
differentiation
EGF
binding assay
K+ transport
Na+ transport
amiloride
growth stimulation
Life and Medical Sciences
Cell & Developmental Biology
neuroblastoma
differentiation
EGF
binding assay
K+ transport
Na+ transport
amiloride
growth stimulation
Life and Medical Sciences
Cell & Developmental Biology
Mouse neuroblastoma cells (clone N1E-115) differentiate in culture upon withdrawal of serum growth factors and acquire the characteristics of neurons. We have shown that exponentially growing N1E-115 cells possess functional epidermal growth factor (EGF) receptors but that the capacity for binding EGF and for stimulation of DNA synthesis is lost as the cells differentiate. Furthermore, in exponentially growing cells, EGF induces a rapid increase in amiloride-sensitive Na+ influx, followed by stimulation of the (Na+ -K+)ATPase, indicating that activation of the Na+/H+ exchange mechanism in N1E-115 cells [1] may be induced by EGF. The ionic response is also lost during differentiation, but we have shown that the stimulation of both Na+ and K+ influx is directly proportional to the number of occupied receptors in all cells whether exponentially growing or differentiating, thus only indirectly dependent on the external EGF concentration. The linearity of the relationships indicates that there is no rate-limiting step between EGF binding and the ionic response. Our data would suggest that as neuroblastoma cells differentiate and acquire neuronal properties, their ability to respond to mitogens, both biologically and in the activation of cation transport processes, progressively decreases owing to the loss of the appropriate receptors.
0730-2312
07302312
Wiley-Blackwell
shingle_title_1 Loss of EGF binding and cation transport response during differentiation of mouse neuroblastoma cells
shingle_title_2 Loss of EGF binding and cation transport response during differentiation of mouse neuroblastoma cells
shingle_title_3 Loss of EGF binding and cation transport response during differentiation of mouse neuroblastoma cells
shingle_title_4 Loss of EGF binding and cation transport response during differentiation of mouse neuroblastoma cells
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source_archive Wiley InterScience Backfile Collection 1832-2000
timestamp 2024-05-06T10:14:21.933Z
titel Loss of EGF binding and cation transport response during differentiation of mouse neuroblastoma cells
titel_suche Loss of EGF binding and cation transport response during differentiation of mouse neuroblastoma cells
topic W
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