Homologous and heterologous desensitization of proto‐oncogene cfos expression in murine peritoneal macrophages
Homologous and heterologous desensitization of proto‐oncogene cfos expression in murine peritoneal macrophages
复制标题
小鼠腹腔巨噬细胞原癌基因cfos表达的同源和异源脱敏
DOI:
10.1002/jcp.1041310107
复制
发表时间:
1987
影响因子:
5.6
通讯作者:
T. Hamilton
中科院分区:
文献类型:
--
作者:
M. Introna;R. Bast;P. Johnston;D. Adams;T. Hamilton
Treatment of murine peritoneal macrophages for 30 min with lipopolysaccharide (LPS) resulted in a transient increase in c‐fos proto‐oncogene mRNA levels (Introna et al., 1986). After 2 h from the initial treatment, c‐fos mRNA could no longer be detected and its expression could not be restimulated either by LPS or by other signals including colony stimulating factor‐1 (CSF‐1) and phorbol myristate acetate (PMA), both of which are able to induce expression of the c‐fos gene in unstimulated macrophages. When LPS was removed after an initial 30 min incubation, responsiveness to a second exposure to LPS began to reappear after 3 h and was completely restored by 20 h. The same pattern of desensitization of c‐fos induction was observed when CSF‐1 stimulated macrophages were subsequently exposed to LPS. The loss of sensitivity to PMA following pretreatment with LPS was selective for c‐fos expression as LPS treated macrophages remained responsive to PMA with respect to the ability to stimulate secretion of H2O2. The mechanism of desensitization was localized, at least in part, at the level of transcription as demonstrated by analysis of c‐fos transcripts in nuclei isolated from macrophages pretreated and restimulated with LPS.
登录
查看更多内容
DOI:
--
发表时间:
1985
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Hamilton,TA;Becton,DL;Somers,SD;Gray,PW;Adams,DO
通讯作者:
Adams,DO
DOI:
--
发表时间:
1984
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Hamilton,TA;Weiel,JE;Adams,DO
通讯作者:
Adams,DO
DOI:
--
发表时间:
1986
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Weiel,JE;Hamilton,TA;Adams,DO
通讯作者:
Adams,DO
DOI:
--
发表时间:
1986
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Somers,SD;Adams,DO
通讯作者:
Adams,DO
影响因子:
4.4
作者:
M. Introna;T. Hamilton;R. Kaufman;D. Adams;R. Bast
通讯作者:
M. Introna;T. Hamilton;R. Kaufman;D. Adams;R. Bast