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A Detailed Protocol for Characterizing the Murine C1498 Cell Line and its Associated Leukemia Mouse Model
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Mouse cell line authentication.

Jamie L Almeida1, Carolyn R Hill, Kenneth D Cole

  • 1Biosystems and Biomaterials Science Division, National Institute of Standards and Technology, 100 Bureau Drive MS8312, Gaithersburg, MD, 20899, USA, jamie.almeida@nist.gov.

Cytotechnology
|February 23, 2013
PubMed
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This summary is machine-generated.

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Researchers developed a new multiplex polymerase chain reaction assay for authenticating mouse cell lines. This assay uses nine tetranucleotide short tandem repeat (STR) markers to provide unique genetic profiles for each mouse sample, aiding in accurate cell line identification.

Area of Science:

  • Genomics
  • Molecular Biology
  • Cell Biology

Background:

  • Cell line misidentification is a significant issue in scientific research, particularly for human cell lines.
  • Validated authentication methods exist for human cells, but such assays are lacking for nonhuman cell lines, including mouse models.
  • Accurate identification of nonhuman cell lines is crucial for reproducibility and reliability in biological studies.

Purpose of the Study:

  • To develop and validate a novel multiplex polymerase chain reaction (PCR) assay for the identification and authentication of mouse cell lines.
  • To establish a reliable method for distinguishing individual mouse samples and detecting potential contaminants.
  • To address the unmet need for nonhuman cell line identification assays in the scientific community.

Main Methods:

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  • Development of a multiplex PCR assay targeting nine tetranucleotide short tandem repeat (STR) markers specific to the mouse genome.
  • Analysis of allele distribution and fragment length correlations using DNA Sanger sequencing across seventy-two mouse samples.
  • Incorporation of primers for two human STR markers to detect human and African green monkey DNA contamination.

Main Results:

  • The developed multiplex assay generated unique STR profiles for each of the seventy-two mouse samples tested.
  • Genotyping of L929 and NIH3T3 cell lines demonstrated stability across different passage numbers, confirming assay reliability.
  • The assay successfully identified allele distributions and confirmed correlations between fragment length and repeat number.

Conclusions:

  • The novel multiplex PCR assay provides a unique STR profile for individual mouse samples, enabling robust authentication of mouse cell lines.
  • This assay is the first of its kind to offer comprehensive identification for mouse cell lines and can detect common contaminants.
  • The validated method will enhance the reliability and reproducibility of research utilizing mouse models.