Publication Date:
1986-08-22
Description:
Continuous measurement and imaging of the intracellular free calcium ion concentration ([Ca2+]i) of mitotic and interphase PtK1 cells was accomplished with the new fluorescent Ca2+ indicator fura-2. No statistically significant difference between basal [Ca2+]i of interphase and mitotic cells was detected. However, mitotic cells showed a rapid elevation of [Ca2+]i from basal levels of 130 nM to 500 to 800 nM at the metaphase-anaphase transition. The [Ca2+]i transient was brief, lasting approximately 20 seconds and the elevated [Ca2+]i appeared uniformly distributed over the entire spindle and central region of the cell. The close temporal association of the [Ca2+]i transient with the onset of anaphase suggests that calcium may have a signaling role in this event.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Poenie, M -- Alderton, J -- Steinhardt, R -- Tsien, R -- EY04372/EY/NEI NIH HHS/ -- GM31004/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1986 Aug 22;233(4766):886-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3755550" target="_blank"〉PubMed〈/a〉
Keywords:
*Anaphase
;
Animals
;
Benzofurans
;
Calcium/*metabolism
;
Cell Line
;
Fluorescent Dyes
;
Fura-2
;
Mitosis
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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