background and objective: vascular endothelial growth factor (vegf) is a cytokine which is overexpressed in many malignant cancers including leukemia. vegf plays an important role in tumor invasion and metastasis. determination of the pattern of vegf expression in human leukemic cell lines could be useful not only in screening of new antileukemic agents but also to study the mechanism of their ...

Background and Objective: Vascular endothelial growth factor (VEGF) is a cytokine which is overexpressed in many malignant cancers including leukemia. VEGF plays an important role in tumor invasion and metastasis. Determination of the pattern of VEGF expression in human leukemic cell lines could be useful not only in screening of new antileukemic agents but also to study the mechanism of their ...


 Purpose: To determine the effect of fresh soy milk and its compounds (coumestrol, daidzein genistein) on apoptosis in human leukemic cells peripheral blood mononuclear (PBMC).
 Methods: The apoptotic (K562, Jurkat, U937) PBMC was determined by flow cytometry. from healthy donors were isolated conducting density gradient centrifugation principle. Lymphoprep cytotoxicity evaluated 3-(...

Background: Pregabalin, a selective inhibitor of voltage dependent calcium channels has been used for treatment of epilepsy, fibromyalgia, generalized anxiety disorder and especially neuropathic pains. The anti-inflammatory properties of pregabalin in some pathologic conditions like orofacial pain and streptozotocin-induced diabetic mice have been reported. Effectiveness of pregabalin in treatm...

We studied the effect of human immunodeficiency virus (HIV) infection on the surface-marker expression of the human promonocytic cell line U937. U937 cells persistently produced HIV as detected by reverse transcriptase activity in culture supernatant. Expression of HLA class II antigens on U937/HIV cells was decreased 2- to 10-fold, depending on the Mab used. Class II expression of U937/HIV cel...

Background: Regarding the strong differentiation and anti-leukemic activity of Dendrostellera lessertii extract, an active agent with similar capabilities was isolated from the crude extract of the plant leaves. The aim of this study was to determine whether the anti-proliferative effect observed for this compound, is differentiation-dependent among the drug-treated cells, using U937 cells. Me...

Background and Objective: Carvedilol, a non-specific β-blocker, has been used for treatment of hypertension, stroke and congestive heart failure. The therapeutic effects of β blockers in cancer patients have been shown. Carvedilol has considerable anti-inflammatory, anti-tumor and anti-angiogenic properties. In this study, the effects of carvedilol on proliferation of human U937 and Molt-4 leuk...

To examine the effect of lymphocyte specific protein 1 (LSP1) on phagocytic cell motility, stable transfection of LSP1-null U937 cell line with an episomal expression vector carrying the LSP1 complementary DNA created lines expressing varied LSP1 levels. Mock transfectants without LSP1 (U937(-)) and cell lines with LSP1 levels similar to those of monocytes (U937(+)) or 4-fold those of monocytes...

Background: β-Blockers have shown considerable cytotoxic, anti-tumor and anti-angiogenic effects. Metoprolol, a β-Blocker with anti-inflammation, anti-tumor and anti-angiogenic properties has been widely used for treatment of some cardiovascular diseases such as angina, hypertension, heart failure and myocardial infraction. Limited data exist about the cytotoxic effects of metoprolol on human c...