abnormal circulating interleukin-2 level decreased circulating interleukin-2 level MP:0008600 MPheno.ontology decreased circulating IL-2 level decreased circulating IL2 level decreased circulating RU 49637 level decreased circulating RU-49637 level decreased circulating Ro-23-6019 level decreased circulating Ro-236019 level decreased circulating T-cell growth factor level decreased circulating T-cell stimulating factor level decreased circulating TCGF level decreased circulating interleukin II level decreased circulating interleukine 2 level decreased circulating lymphocyte mitogenic factor level decreased circulating thymocyte stimulating factor level reduced circulating IL-2 level reduced circulating IL2 level reduced circulating RU 49637 level reduced circulating RU-49637 level reduced circulating Ro-23-6019 level reduced circulating Ro-236019 level reduced circulating T-cell growth factor level reduced circulating T-cell stimulating factor level reduced circulating TCGF level reduced circulating interleukin II level reduced circulating interleukine 2 level reduced circulating lymphocyte mitogenic factor level reduced circulating thymocyte stimulating factor level reduction in the amount in the blood of a soluble substance elaborated by antigen- or mitogen-stimulated T-cells which induces DNA synthesis in naive lymphocytes