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The monocyte chemotactic protein a (MCP-1) and interleukin 8 (IL-8) in Hodgkin's disease and in solid tumours.
  1. M G Luciani,
  2. A Stoppacciaro,
  3. G Peri,
  4. A Mantovani,
  5. L P Ruco
  1. Dipartimento di Medicina Sperimentale e Patologia, Università La Sapienza, Roma, Italy.

    Abstract

    AIMS: Monocyte chemotactic protein 1 (MCP-1) and interleukin 8 (IL-8) are small, inducible proteins with chemotactic activity for specific subsets of leucocytes. The possibility that MCP-1 and IL-8 are produced in tissues involved by Hodgkin's disease, thus contributing to the inflammatory-type background of the lesion, was investigated. METHODS: The presence of RNA transcripts for MCP-1 and IL-8 was investigated in biopsy samples of 24 cases of Hodgkin's disease, 17 non-Hodgkin's malignant lymphomas, 30 solid tumours, and 30 histologically normal tissues by means of reverse transcription-polymerase chain reaction (RT-PCR)/Southern blot analysis. RESULTS: MCP-1 expression was detected in 23 of 24 cases of Hodgkin's disease, in seven of 17 cases of B cell non-Hodgkin's lymphoma, and in seven of 14 cases of reactive lymphoid hyperplasia. IL-8 was present in six of 14 cases of Hodgkin's disease, and was seen only rarely in B cell non-Hodgkin's lymphoma and in reactive lymphoid tissues. MCP-1 and IL-8 RNA transcripts were detected in 13 of 25 carcinomas originating from the lung, breast, thyroid, and ovary. CONCLUSIONS: These findings are consistent with the possibility that MCP-1 and IL-8 are two additional cytokines involved in the pathogenesis of Hodgkin's disease.

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