MDR1 gene expression in primary colorectal carcinomas
1993

MDR1 Gene Expression in Colorectal Cancer

Sample size: 113 publication Evidence: moderate

Author Information

Author(s): R. Pirker, J. Wallner, A. Gsur, M. Götzl, S. Zdichbauer, W. Scheithauer, D. Depisch

Primary Institution: University of Vienna Medical School

Hypothesis

Is MDR1 gene expression associated with survival outcomes in colorectal cancer patients?

Conclusion

MDR1 gene expression does not affect the survival durations of colorectal cancer patients.

Supporting Evidence

  • MDR1 RNA was detected in 65% of the colorectal carcinomas studied.
  • No expression of the MDR2 gene was seen in any of the tumors.
  • Survival analysis showed no difference in outcomes based on MDR1 RNA expression.
  • Patients with MDR1 positive tumors had similar survival durations to those with negative tumors.

Takeaway

The study looked at a gene called MDR1 in colorectal cancer and found that it doesn't help predict how long patients will live after treatment.

Methodology

MDR1 RNA levels were determined using slot blot analysis on tumor specimens from patients.

Limitations

The study did not find a correlation between MDR1 expression and survival, which may be due to the types of treatments the patients received.

Participant Demographics

58 females and 55 males, median age 60 years.

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