New diagnose is with of early gastric cancer for recurred surgical operation that uses shortening midkine is necessary.

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This study was carried out about early gastric cancer (sm gastric cancer) in the following items and conducted the examination that could not search lymph node metastases before treatment.1.The manufacture of the antitMK monoclonal antibody and detectability and specific confirmation2.Detection 3 of onset with the gastric cancer cell line of analysis tMKmRNA and the tMK protein.As a result, the significant difference of the thing which tended to be strong in sm2 which was deep as for the onset of tMK by the difference of depth of sm1 and sm2 in the sm cancer depth was not clear the analysis in the tMK monoclonal antibody with the early gastric cancer (sm1,sm2) resected specimen which was the clinical specimen of the human and onset of tMKmRNA and protein analysis.Also, with the biopsy tissue of the case with lymph node metastases, a preoperative biopsy, expression of tMK in lymph nodes were not able to find the association.