The present disclosure describes methods for altering the expression of a target gene comprising a rare cluster of codons, including, but not limited to, trinucleotide repeats. The method utilizes, in part, on amino acid deprivation or the limiting of specific charged tRNAs. The methods for altering target gene expression may be used in treatment methods to treat diseases in a subject organism in need of such treatment. Such methods for altering target gene expression have not been heretofore recognized in the art. Exemplary diseases that may be treated using the methods of the present disclosure include any disease where altering the expression of the target gene would provide treatment. Such diseases include all forms of cancer, ageing, infectious disease, metabolic disorders, inflammation, neurological disorders, diabetes, psychiatric disorders and diseases associated with trinucleotide repeats.