Abstract:
:Insulin was employed as a stimulant in our continuing investigations of the molecular mechanisms involved in the coordinate control of cellular metabolism and growth. Incubation of chicken embryo fibroblasts for 16 hours in media containing 0-0.1 U insulin/ml resulted in a 17-fold increase in the rate of 3H-thymidine incorporation into DNA. Concomitantly, there were graded increases in intracellular K+ (14%) AND Mg2+ (22%) and no significant change in Ca2+. These changes in cation content occurred within 10 to 30 minutes and preceded the changes in 3H-thymidine incorporation. Insulin produced a consistent graded decrease in externally bound Mg2+ and Ca2+ and a concomitant increase in bound Na+ and K+ with no significant change in the rates of K+ and Mg2+ efflux. The results are consistent with the concept of Mg2+ as a second messenger for insulin action, as well as with the more general hypothesis that Mg2+ is the centtral agent in the coordinate control of metabolism and growth in animal cells.
journal_name
J Cell Physioljournal_title
Journal of cellular physiologyauthors
Sanui H,Rubin AHdoi
10.1002/jcp.1040960302subject
Has Abstractpub_date
1978-09-01 00:00:00pages
265-78issue
3eissn
0021-9541issn
1097-4652journal_volume
96pub_type
杂志文章abstract::A method, based on the differing capacities of cells to adhere to a column of polyester fibres, has been described for separating human bone marrow cells into a nonadherent and an adherent fraction. The effect of this cell separation procedure on colony formation by erythroid progenitor cells was investigated. In cont...
journal_title:Journal of cellular physiology
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journal_title:Journal of cellular physiology
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journal_title:Journal of cellular physiology
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abstract::The role of microtubules in mitogen-induced human lymphocyte activation and proliferation was examined. The effect of colchicine, a microtubule-disrupting agent, was compared with taxol, a microtubule-stabilizing drug, and with isaxonine (N-isopropyl-amino-2-pyrimidine orthophosphate), a proposed microtubular-active d...
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更新日期:1993-07-01 00:00:00
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更新日期:1991-03-01 00:00:00
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