Paving Way for Cancer Therapies Through Genetic Function Discovered


A team of researchers discovered a genetic function that helps one of the most important “tumour suppressor” genes prevent cancer.


According to scientists from OSU and Oregon Health and Science University, finding ways to maintain or increase the effectiveness of this gene – called Grp1-associated scaffold protein, or Grasp – could offer an important new avenue for human cancer therapies.

The Grasp gene was studied in the skin of mice in this research, but is actually expressed at the highest levels in the brain, heart and lung, studies have shown. It appears to play a fundamental role in the operation of the p53 tumour suppressor gene, which is a focus of much modern cancer research.

The new study has found that the Grasp gene is significantly involved in maintaining the proper function of p53. When “Grasp” is not being adequately expressed, the p53 protein that has entered the cell nucleus to either repair or destroy the cell comes back out of the nucleus before its work is finished.


It appears that a primary function of Grasp is to form sort of a halo around the nucleus of a damaged skin cell, and act as kind of a plug to keep the p53 cell inside the nucleus until its work is done.

A drug that could enhance Grasp function might also help enhance the p53 function, and give a different way to keep this important tumour suppressor working the way that it is supposed to.

The study was published in the journal Photochemical and Photobiological Sciences.


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