Determine what chemotherapy drugs work well on the cultures. Because of LMS tumor cell heterogeneity, development of resistance, and generally poorly effective chemotherapy agents, this may not be of as much use as one would wish.

Determine what chemotherapy drugs are useless for this tumor. 

Check out new cancer drugs on the tumor, to see if it works for that kind of tumor?

Check a test's predictions against what actually happened when the tumor owners were given the chemotherapy agents. [Seeing how good the test is].

Suggest prognosis for patients, depending upon whether their tumor is chemosensitive or chemoresistant.

