US Patent 11859232 Screening for chemotherapy resistance in human haploid cells

A method of selecting an agent for treating a disease of a subject is disclosed which includes identifying genes which bring about resistance to a cytotoxic agent in haploid human embryonic stem (ES) cells. Once the gene is identified, the method includes analyzing the sequence and/or expression of the gene in a cell sample of the subject, wherein an alteration in the sequence and/or level of expression of the gene as compared to the sequence and/or expression of the gene in a control sample is indicative that the agent should be ruled out as a monotherapy for treating the disease in the subject.