| Replicative senescence, telomere shortening and cell proliferation rate in Gaddi goat's skin fibroblast cell line. | |
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MedLine Citation:
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PMID: 17587609 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We assessed aging in continuous donor skin fibroblast cell line GGM5 up to the 25th passage by in vitro replicative senescence, telomere dynamics and chromosomal abnormalities. Cell proliferation rate increased from 0.84+/-0.26 (primary cells) to 1.20+/-0.17 (13-15 passage group) per day and reduced to 0.65+/-0.14 in 22-25 passages. Cell proliferation rate was reduced by 45.7% after 87.62 CPDs. Cell viability reduced from 100% to 97.4% up to the 25th passages. Frequency of beta gal(+) cells increased in successive passages and days in culture. The correlation coefficient between frequency of beta gal(+) cells and growth rate was -0.50 to -0.61. Loss of mean TRF length was 13.8 nucleotides (passage 15) to 95.4 nucleotides per cell division in later passages. All cells showed Robertsonian translocation in 22-25 passaged cells. The SCNT pre-implantation embryos production was highest (22.5%) in donor cells used from 10-15 passages as compared to early (<or=5) and late (22-25 passages). Our findings supports that cell proliferation rates, beta gal staining, mean TRF loss and karyological profile are useful marker for evaluation of competent nuclear donor. |
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Authors:
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Neelam Gupta; Ritu Taneja; Alok Pandey; Manishi Mukesh; Hari Singh; S C Gupta |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2007-05-21 |
Journal Detail:
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Title: Cell biology international Volume: 31 ISSN: 1065-6995 ISO Abbreviation: Cell Biol. Int. Publication Date: 2007 Oct |
Date Detail:
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Created Date: 2007-07-13 Completed Date: 2007-10-04 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9307129 Medline TA: Cell Biol Int Country: England |
Other Details:
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Languages: eng Pagination: 1257-64 Citation Subset: IM |
Affiliation:
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Transgenic Research Laboratory, DNA Fingerprinting Unit, National Bureau of Animal Genetic Resources, Karnal 132001, Haryana, India. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Cell Aging* Cell Nucleus / metabolism Cell Proliferation* Cells, Cultured Fibroblasts / cytology* Goats Karyotyping Skin / cytology*, metabolism Telomere / physiology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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