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Related Concept Videos

Cell Culture01:21

Cell Culture

Most vertebrate cells grow in vitro attached to a substrate as a monolayer, called adherent cultures. The flasks and plates used to grow cells are chemically treated to facilitate cell attachment. However, a few cell types, such as hematopoietic cells, can grow in a suspension. In contrast to adherent cultures, suspension cultures can grow in non-treated cultureware using magnetic stirrers or spinner flasks to agitate the culture media
Cell Lines01:16

Cell Lines

A cell line is a population of cells grown in vitro that can be subcultured over several generations. Normal cells cease to divide after a certain number of cell divisions, a process known as replicative senescence. This number, called the Hayflick limit, was conceptualized by Leonard Hayflick in 1961 when he observed that fetal cells grown in culture could only divide 40-60 times. This limit is due to the shortening of the telomeres during each round of cell division, preventing cell division...

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Aging cell culture: methods and observations.

Sharla M O Phipps1, Joel B Berletch, Lucy G Andrews

  • 1Department of Biology, University of Alabama at Birmingham, Birmingham, AL, USA.

Methods in Molecular Biology (Clifton, N.J.)
|July 20, 2007
PubMed
Summary

Studying human fibroblast aging in vitro reveals finite proliferation limits. This research advances understanding of aging mechanisms and potential therapies for age-related decline.

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Viability Assays for Cells in Culture
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Area of Science:

  • Gerontology and cellular biology.
  • Molecular mechanisms of aging.

Background:

  • Finite proliferative capacity of normal human diploid fibroblasts in culture is a hallmark of cellular aging.
  • Extensive research, including work by Hayflick and Moorhead, has characterized this limitation across various cell types.
  • Understanding in vitro aging is crucial for developing anti-aging interventions.

Purpose of the Study:

  • To summarize laboratory procedures for studying cellular aging in vitro.
  • To provide an overview of methods for culturing and subculturing human diploid fibroblasts.
  • To highlight the significance of in vitro models in aging research.

Main Methods:

  • Cell culturing techniques for normal human diploid fibroblasts.
  • Subcultivation protocols to monitor proliferation over time.
  • In vitro experimental setups to observe cellular aging phenotypes.

Main Results:

  • Demonstration of the finite replicative lifespan of human diploid fibroblasts in culture.
  • Observation of molecular events associated with the aging process in vitro.
  • Establishment of reproducible methods for studying cellular senescence.

Conclusions:

  • In vitro culturing of human fibroblasts provides a valuable model for aging research.
  • Progress in understanding cellular aging mechanisms can inform the development of therapies.
  • Standardized laboratory procedures are essential for consistent and reliable aging studies.