PMID- 18677926 OWN - NLM STAT- MEDLINE DCOM- 20080924 LR - 20151119 IS - 0048-7848 (Print) IS - 0048-7848 (Linking) VI - 112 IP - 1 DP - 2008 Jan-Mar TI - Flow cytometry-based quantification of cytokine levels in AML patients plasma and cell culture supernatants. PG - 196-202 AB - AIM: Bone marrow stromal cells (BMSCs) have been found to support leukemic cell survival; however, the mechanisms responsible are far from being elucidated yet. The main aim of the current study is to identify particular cytokine/chemokine patterns of acute myeloid leukemia (AML) cells, and, on a longer term, to correlate them with the patient outcome and response to therapy. Therefore, the influence of BMSCs on in vitro modulation of cytokine secretion (IL-1beta, TNF-alpha, IL-10, IFN-gamma, IL-4, IL-5, and IL-2) by AML cells as well as the AML cells supportive capacity of BMSCs-derived soluble factors was investigated. MATERIAL AND METHODS: With this purpose, we used an in vitro experimental model consisting in the evaluation of the effect of BMSC confluent layers-conditioning medium (BMSC-CM) on M4/5 AML cell cultures. RESULTS: Our results show that BMSC-CM from both AML patients and healthy subjects conferred a substantial beneficial effect on AML cells throughout the culture (p=0.0002 and 0.0020 respectively at 24 hours and p=0,0013 and 0,0030 respectively at 72 hours), with a temporary increase in AML cell viability conferred by BM plasma from AML patients. Significant differences were observed with respect to IL1 b secretion which was upregulated in AML cell cultures both after 24 and 72 hours following the addition of AML-BMSC-CM, in contrast to control-BMSC-CM. CONCLUSION: Our results suggest the contribution of BMSCs from AML patients to the generation of particular factors which may be key players involved in the in vivo maintenance of the malignant clone. FAU - Dacalescu, Angela AU - Dacalescu A AD - Gr.T. Popa University of Medicine and Pharmacy Iasi, School of Medicine, Department of Hematology. FAU - Zlei, Mihaela AU - Zlei M FAU - Aanei, Carmen AU - Aanei C FAU - Ungureanu, Didona AU - Ungureanu D FAU - Tepelus, Maria AU - Tepelus M FAU - Burcoveanu, Cristina AU - Burcoveanu C FAU - Danaila, C AU - Danaila C LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Romania TA - Rev Med Chir Soc Med Nat Iasi JT - Revista medico-chirurgicala a Societatii de Medici si Naturalisti din Iasi JID - 0413735 RN - 0 (Antiviral Agents) RN - 0 (Biomarkers, Tumor) RN - 0 (Chemokines) RN - 0 (Cytokines) RN - 0 (IL-10-related T cell-derived inducible factor, IL-TIF) RN - 0 (Interleukin-2) RN - 0 (Interleukin-5) RN - 0 (Tumor Necrosis Factor-alpha) RN - 130068-27-8 (Interleukin-10) RN - 207137-56-2 (Interleukin-4) RN - 82115-62-6 (Interferon-gamma) SB - IM MH - Antiviral Agents/analysis MH - Biomarkers, Tumor/*analysis MH - Bone Marrow Cells/*metabolism MH - Chemokines/analysis MH - Cytokines/*analysis/blood MH - *Flow Cytometry/methods MH - Humans MH - In Vitro Techniques MH - Interferon-gamma/analysis MH - Interleukin-10/analysis MH - Interleukin-2/analysis MH - Interleukin-4/analysis MH - Interleukin-5/analysis MH - Leukemia, Myeloid, Acute/blood/*metabolism MH - Tumor Cells, Cultured MH - Tumor Necrosis Factor-alpha/analysis EDAT- 2008/08/06 09:00 MHDA- 2008/09/25 09:00 CRDT- 2008/08/06 09:00 PHST- 2008/08/06 09:00 [pubmed] PHST- 2008/09/25 09:00 [medline] PHST- 2008/08/06 09:00 [entrez] PST - ppublish SO - Rev Med Chir Soc Med Nat Iasi. 2008 Jan-Mar;112(1):196-202.