The free cytoplasmic calcium concentration of tumorigenic and non-tumorigenic human somatic cell hybrids
1985

Calcium Levels in Tumorigenic and Non-Tumorigenic Cells

Sample size: 57 publication Evidence: high

Author Information

Author(s): M.R.C. Banyard, R.L. Tellam

Primary Institution: John Curtin School of Medical Research, The Australian National University

Hypothesis

Do tumorigenic cells have different levels of cytoplasmic calcium compared to non-tumorigenic cells?

Conclusion

Tumorigenic cells have a significantly higher level of cytoplasmic calcium compared to non-tumorigenic cells.

Supporting Evidence

  • The mean calcium concentration in tumorigenic cells was 180 nM, while in non-tumorigenic cells it was 136 nM.
  • The difference in calcium levels was statistically significant with a p-value of less than 0.001.
  • Control experiments showed that calcium levels were not influenced by cell density or quin-2 concentration.

Takeaway

This study found that cancer cells have more calcium in them than normal cells, which might help them grow and divide uncontrollably.

Methodology

The study measured cytoplasmic calcium levels using a fluorescent indicator in various human cell lines.

Limitations

The study primarily focused on specific cell lines and may not generalize to all tumorigenic or non-tumorigenic cells.

Participant Demographics

The study involved human somatic cell hybrids derived from HeLa cells and normal human fibroblasts.

Statistical Information

P-Value

p<0.001

Statistical Significance

p<0.001

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