Publication

A simple microfluidic platform to study age-dependent protein abundance and localization changes in Saccharomyces cerevisiae

Cabrera, M., Novarina, D., Rempel, I. L., Veenhoff, L. M. & Chang, M., 13-Apr-2017, In : Microbial Cell. 4, 5, p. 169-174 6 p.

Research output: Contribution to journalArticleAcademicpeer-review

The budding yeast Saccharomyces cerevisiae divides asymmetrically, with a smaller daughter cell emerging from its larger mother cell. While the daughter lineage is immortal, mother cells age with each cell division and have a finite lifespan. The replicative ageing of the yeast mother cell has been used as a model to study the ageing of mitotically active human cells. Several microfluidic platforms, which use fluid flow to selectively remove daughter cells, have recently been developed that can monitor cell physiology as mother cells age. However, these platforms are not trivial to set up and users often require many hours of training. In this study, we have developed a simple system, which combines a commercially available microfluidic platform (the CellASIC ONIX Microfluidic Platform) and a genetic tool to prevent the proliferation of daughter cells (the Mother Enrichment Program), to monitor protein abundance and localization changes during approximately the first half of the yeast replicative lifespan. We validated our system by observing known age-dependent changes, such as decreased Sir2 abundance, and have identified a protein with a previously unknown age-dependent change in localization.

Original languageEnglish
Pages (from-to)169-174
Number of pages6
JournalMicrobial Cell
Volume4
Issue number5
Publication statusPublished - 13-Apr-2017

    Keywords

  • Journal Article, yeast, replicative aging, Microfluidics, CellASIC, PROTEIN ABUNDANCE, PROTEIN LOCALIZATION, LIFE-SPAN, BUDDING YEAST, aging yeast, genes

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