objective: macrophages influence their environment and surrounding immune cells as soon as stimulators affect them. different sources of macrophages induce different reactions in their neighboring immune cells,which result in non-uniform immunologic outcomes. in this experimental research, we compare the behavior of peritoneal macrophages to lipopolysaccharide (lps) stimulation from balb/cmice ...

Objective(s) The fractions of Candida albicans have been used as an immunomodulator. The present work assessed the effect of different fractions of C. albicans on nitric oxide (NO) production by mice peritoneal macrophages. Materials and Methods Cell wall and cytoplasmic fractions of C. albicans ATCC 10321 strain were extracted. Mice peritoneal macrophages were purified and cultured. Differen...

objective(s): high mobility group box1 (hmgb1) is a nonhistone, dna-binding protein that serves a crucial role in regulating gene transcription and is involved in a variety of proinflammatory, extracellular activities. the aim of this study was to explore whether hmgb1 stimulation can up-regulate the expression of toll-like receptor 2 (tlr2) and toll-like receptor 4 (tlr4) on macrophages from p...

objective: although iron is a crucial element for many metabolic pathways of the body, the excess iron may induce apoptosis in some cell types such as macrophages. in the present investigation, the role of iron overload in inducing apoptosis of balb/c mice macrophages infected with l. major in vitro, as a selective model, was studied. materials and methods: the peritoneal macrophages were harve...

Background: Invasive ductal carcinoma is the most common type of breast cancer in Iran. Impaired immune responses occur frequently in cancer patients, but the mechanisms of the induced immune defects remain poorly understood. It is believed that infiltrated immune cells, especially macrophages, may provide help for tumor cell growth and metastasis.   Objective: To analyze the status of tumor as...

Objective(s):Some evidence showed that calcitriol has an important role in regulating growth and differentiation of mesenchymal stem cells (MSCs). However, the interaction between mesenchymal stem cells and macrophage is not clear yet.  The current study was done to investigate the in vitro effects of calcitriol on the interactions between bone marrow-derived MSCs and rat macrophages. Material...

introduction: the respiratory system is both a route of entry and exit for toxins and injurious agents, as well as being a target for chemical substances and pathogens. therefore, an understanding of the structure and function of the migratory cell populations of pulmonary tissues including alveolar macrophages is central in a number of important disease processes. this study aimed to identify ...

discussions in comparison to the control of wy14643, sandoz58-035, c9 and t11-cla, epa increased the pparα mrna levels (p = 0.024, p = 0.041, p = 0.043, and p = 0.004, respectively), even though, la had no significant effect on the pparα mrna expression (p = 0.489). materials and methods this experimental study investigated the effects of c9, t11-conjugated linoleic acid (c9, t11-cla). alpha li...

In this study the nature of chromosomal proteins, his tones and nonhistone in resident alveolar macrophages was investigated in comparison to peritoneal neutrophils and calf thymus proteins. Cells were obtained by lavaging the lung and after purity determination they were subjected to fractional extraction procedures. Proteins were then analysed on SDS polyacrylamide gels and densitometric...