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Aberrantly Low Stat3 And Stat5 Responses Are Associated With Poor Outcome And An Inflammatory Gene Expression Signature In Pediatric Acute Myeloid Leukemia., P Narayanan, T-K Man, R B Gerbing, R Ries, A M Stevens, Y-C Wang, X Long, A S. Gamis, T Cooper, S Meshinchi, T A Alonzo, M S Redell

Manuscripts, Articles, Book Chapters and Other Papers

The relapse rate for children with acute myeloid leukemia is nearly 40% despite aggressive chemotherapy and often stem cell transplant. We sought to understand how environment-induced signaling responses are associated with clinical response to treatment. We previously reported that patients whose AML cells showed low G-CSF-induced STAT3 activation had inferior event-free survival compared to patients with stronger STAT3 responses. Here, we expanded the paradigm to evaluate multiple signaling parameters induced by a more physiological stimulus. We measured STAT3, STAT5 and ERK1/2 responses to G-CSF and to stromal cell-conditioned medium for 113 patients enrolled on COG trials AAML03P1 and AAML0531. Low …