Aging in Cell and Tissue Culture: Proceedings of a symposium by Emma Holečková, Vincent J. Cristofalo (auth.), Emma

By Emma Holečková, Vincent J. Cristofalo (auth.), Emma Holečková, Vincent J. Cristofalo (eds.)

The annual assembly of the eu Tissue tradition ., Society was once held on the fortress of Zinkovy in Czechoslovakia from may well 7-10,1969. integrated as a part of this assembly used to be a symposium on "Aging in phone and Tissue Culture." This quantity comprises the papers offered at that symposium. using cellphone and tissue tradition suggestions to check the mechanism of getting older isn't really new. for instance, it has lengthy been recognized that age-associated adjustments which happen in plasma can inhibit phone proliferation in vitro; additionally that the time lapse sooner than mobile migration from ex­ planted tissue fragments raises with expanding age. those are either examples of the expression in vitro of getting older in vivo. extra lately, recognition has been fascinated about the incidence of senescence in vitro. those investi­ gations have integrated reviews of adjustments in non­ dividing mobilephone cultures, and to a just a little higher quantity, of age-related alterations within the proliferative capability of cells in vitro. for instance, cells derived from human fetal lung keep many homes of standard cells together with a strong common diploid karyotype and those cultures were proven to have a restricted life-span in vitro. In addi­ tion, cultures derived from human grownup lung exhibit an analogous general features and seem to have a shorter existence­ span than cells derived from fetal lung.

Show description

Read or Download Aging in Cell and Tissue Culture: Proceedings of a symposium on “Aging in Cell and Tissue Culture” held at the annual meeting of the European Tissue Culture Society at the Castle of Žinkovy in Czechoslovakia, May 7–10, 1969 PDF

Best european books

The Price of Gender Equality: Members States and Governance in the European Union (Gender in a Global Local World)

This completely researched, well-documented booklet provides a theoretically guided empirical research of constructing and imposing gender equality rules within the ecu Union (EU). regardless of a wealth of analysis, many questions have lengthy remained unanswered and those are addressed the following. the writer built a world kinfolk theoretical framework so one can clarify the altering fortunes of women's activism, the altering attitudes of ecu associations and the behaviour of member states in a multi-level environment.

Ceramics in Advanced Energy Technologies: Proceedings of the European Colloquium held at the Joint Research Centre, Petten Establishment, Petten, The Netherlands, 20–22 September 1982

The eu Colloquium on Ceramics in complicated strength expertise handled structural, mechanical, thermo-physical, chemical and electrical/electronics points of ceramics, as applicants fabrics in complex strength conversion platforms. The technical programme integrated the presentation of twenty-two invited papers.

Structuring European Private Equity

Structuring ecu deepest fairness takes you into the center of the ecu inner most fairness marketplace and courses you thru refined inner most fairness items, functionality size, threat administration, fund constructions and industry dynamics. With contributions from sixteen top specialists, it truly is a vital e-book for personal and institutional traders, marketers, enterprise capital and personal fairness execs.

Wireless Sensor Networks: 12th European Conference, EWSN 2015, Porto, Portugal, February 9-11, 2015. Proceedings

This publication constitutes the refereed complaints of the 12 eu convention on instant Sensor Networks, EWSN 2015, held in Porto, Portugal, in February 2015. The 14 complete papers and nine brief papers provided have been conscientiously reviewed and chosen from eighty five submissions. They conceal a variety of issues grouped into 5 periods: prone and purposes, mobility and delay-tolerance, routing and information dissemination, and human-centric sensing.

Additional info for Aging in Cell and Tissue Culture: Proceedings of a symposium on “Aging in Cell and Tissue Culture” held at the annual meeting of the European Tissue Culture Society at the Castle of Žinkovy in Czechoslovakia, May 7–10, 1969

Example text

J ij (,) lJ... () 25 ~ Lu ~ ::::> •• • u 3 WEEKS 31 MONTHS J_ <: Fig. 2. The cell yield from 1 g of kidney tissue of young (3 weeks) and old (31 months) rats. ml of medium] and then incubated for three weeks. Figure 3 shows the results after two weeks of cultivation, when cells of the young rats had already formed a monolayer, but the cells of the old rats had formed only a few degenerating colonies. One objection to this experiment is the realization that the trypsindigested cells may still bear an envelope of extracellular collagen on their surface, and that the properties of this supposed envelope could be different in young and old cells.

As a possible explanation for increase in mean cell size with aging, an increase in the number of tetraploid or other polyploid cells has been postulated [3]. In Figure 7 chromosome counts are given for the six cell strains of experiment 2. These counts were taken at passage 24, three passages before the end of the lifespan. The cells of all six cell strains are still predominantly diploid. The diploid number is 12. The percentage of tetraploid cells is about 20, which is a normal value for this cell strain [5].

Decrease in euploidy for mouse embryonic cell strain number 1 (solid line, closed Circles) cultivated with feeder cells; substrains (broken line, open Circles) taken off feeder at sixth, twelfth, and twenty-fourth transfer generation; and mouse embryonic cell strain (line 4) cultivated without feeder cells (compare with Fig. 7). (From Rothfels et al. [18J). 0 20 R. J. HAY A considerable number of reports are now available indicating that euploid rat cell strains may be maintained indefinitely in vitro if adequate nutritional conditions are employed (Table IV).

Download PDF sample

Rated 4.37 of 5 – based on 30 votes