Evidence that c-myc expression defines two genetically distinct forms of colorectal adenocarcinoma
1985

c-myc Expression in Colorectal Adenocarcinoma

Sample size: 38 publication Evidence: moderate

Author Information

Author(s): P.G. Rothberg, J.M. Spandorfer, M.D. Erisman, R.N. Staroscik, H.F. Sears, R.O. Petersen, S.M. Astrin

Primary Institution: Institute for Cancer Research

Hypothesis

Elevated expression of the myc gene is a marker of a distinct form of colon carcinoma.

Conclusion

The study found that elevated c-myc expression is more common in left-sided colorectal tumors compared to right-sided ones.

Supporting Evidence

  • Significantly elevated expression of c-myc was found in the majority of tumors studied.
  • Elevated c-myc expression was more frequent in left-sided tumors than in right-sided tumors.
  • Chi square analysis rejected the null hypothesis regarding myc expression in tumors from either side.

Takeaway

This study shows that some colon cancers have more of a certain gene called c-myc, especially on the left side of the colon.

Methodology

The study used dot blot hybridization to measure c-myc RNA levels in colorectal adenocarcinoma samples.

Limitations

The study did not explore the mechanisms behind the observed differences in c-myc expression.

Participant Demographics

The study included patients with colorectal adenocarcinoma, but specific demographics were not detailed.

Statistical Information

P-Value

<0.025

Statistical Significance

p<0.025

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