The present invention relates to methods for the diagnosis and treatment of hematological disorders. Specifically, the present invention identifies the differential expression of 131, 148, 199, 12303, 13906, 15513, 17822, 302, 5677, 194, 14393, 28059, 7366, 12212, 1981, 261, 12416, 270, 1410, 137, 1871, 13051, 1847, 1849, 15402, 340, 10217, 837, 1761, 8990 and 13249 genes in tissues relating to hematological disorders sensation, relative to their expression in normal, or non-hematological disorders disease states, and/or in response to manipulations relevant to hematological disorders. The present invention describes methods for the diagnostic evaluation and prognosis of various hematological disorders, and for the identification of subjects exhibiting a predisposition to such conditions. The invention also provides methods for identifying a compound capable of modulating hematological disorders. The present invention also provides methods for the identification and therapeutic use of compounds as treatments of hematological disorders.