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Cell Lines01:16

Cell Lines

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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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Generating bat primary and immortalised cell-lines from wing biopsies.

Dominic Alcock1, Sarahjane Power1, Bridget Hogg2

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Researchers developed new cell lines from Egyptian fruit bats to study their longevity and disease resistance. These non-lethal methods create vital resources for understanding bat healthspan and immune responses.

Keywords:
AgeingBiopsyCell cultureCell lineChiropteraFibroblastsImmortalisationNon-lethalOxidative stress tolerancePrimarySV40LTWing punch

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Area of Science:

  • Comparative genomics
  • Mammalian longevity research
  • Infectious disease modeling

Background:

  • Bats are recognized as models for studying extended healthspan and disease tolerance.
  • Research is hindered by a lack of specific cellular resources for bats.
  • Understanding bat biology can offer insights into aging and disease resistance.

Purpose of the Study:

  • To establish an optimized protocol for developing primary and immortalized fibroblast cell lines from bats.
  • To create essential cellular resources for studying bat longevity and disease tolerance.
  • To enable research on bat species, including those of conservation concern.

Main Methods:

  • Developed primary and immortalized fibroblast cell lines using wing biopsy punches from Egyptian fruit bats (Rousettus aegyptiacus).
  • Assessed proliferative capacity and response to oxidative stress in both cell types.
  • Evaluated NF-κB immune response to Toll-like receptor (TLR) agonists, including SARS-CoV-2.

Main Results:

  • Established functional primary and immortalized fibroblast cell lines from Rousettus aegyptiacus.
  • Demonstrated similar proliferative capacity and oxidative stress responses between primary and immortalized cells.
  • Observed comparable NF-κB immune responses to TLR agonists and SARS-CoV-2 in both cell types.

Conclusions:

  • The developed protocol allows for non-lethal generation of bat fibroblast cell lines, applicable to various species.
  • These cellular resources are crucial for functional validation of bat longevity and disease tolerance mechanisms.
  • This work expands the scope of bat species available for research, aiding conservation efforts and biomedical insights.