Alireza Andalib

Department of Immunology

[ 1 ] - CD4⁺Foxp3⁺ Treg and its ICOS⁺ Subsets in Patients with Myocardial Infarction

Background: Atherosclerosis is a multifactorial disorder with chronic inflammatory conditions in which immune cells play a significant role in its pathogenic process. Regulatory T cells (Treg), as a part of immune system, are involved in controlling autoimmune and inflammatory diseases. Quantitative and/or functional alteration of Tregs has been shown to play an atheroprotective role and may al...

[ 2 ] - Expression of Chemokine Receptors on Th1/Th2 CD4+ Lymphocytes in Patients with Multiple Sclerosis

Background: Th1 cells preferentially express CXCR3, CCR5 and CCR6, while CCR3 and CCR4 are predominantly expressed by Th2 cell subsets. Multiple Sclerosis (MS) is a Th1 cell-dependant chronic inflammatory disease of the central nervous system, and immunomudolatory cytokines could alter the chemokine expression pattern of these lymphocyte subsets. Objective: This study was performed to measure c...

[ 3 ] - The Assessment of NK Cytotoxicity and CD56+/CD16+ Phenotype by Flowcytometry in PBL Isolated from Women with Recurrent Spontaneous Abortion

Background: Human peripheral blood NK cells constitutively express CD56 and CD16 antigens. Peripheral blood NK cells seem to be strongly related with decidual NK cells, and may reflect the decidual NK cell functional status. There are varied reports concerning the relationship between NK cell cytotoxicity in women with recurrent spontaneous abortion. Objective: To study NK activity in women wit...

[ 4 ] - A Flowcytometry Study of CD55 and CD59 Expression on Erythrocytes in Rheumatoid Arthritis Patients

Background: Inappropriate activation or blockage of the inhibition of complement system could cause tissue damages in autoimmune diseases particularly rheumatoid arthritis (RA). Defect in complement component regulation may cause damages to tissues, on the other hand, or the damaged tissue might affect the unnecessary activation of complement components.   Objective: To investigate the expressi...

[ 5 ] - The Increase in Protein and Plasmid Yields of E. coli with Optimized Concentration of Ampicillin as Selection Marker

Background: Escherichia coli is still the common host for ing and heterologous protein expression. Various strategies have been employed to increase protein expression in E. coli, but, it seems that external factors such as selection marker concentration can drastically aff ect the yield of protein and plasmid.Objectives: Alterations of protein expression...

[ 6 ] - Can the Decreased Expression of Human Leukocyte Antigen Class Ⅰ and Ⅱ by Spermatozoa Lead to Recurrent Spontaneous Abortion?

Background & Objective: Unexplained recurrent spontaneous abortion (URSA) is defined as an unknown cause of occurrence of three or more clinically detectable pregnancy losses before 20 weeks of gestation, but it occurs presumably as a result of the immune system dysfunctions. We supposed that the disruption of semen or spermatozoa might be responsible for the dysfunction of the...

[ 7 ] - Producing Soluble Human Programmed Cell Death Protein-1: A Natural supporter for CD4+T cell Cytotoxicity and Tumor Cells Apoptosis

Background: Programmed cell death protein-1 (PD-1)/PD-L1 pathway is one of the immune checkpoint pathways involved in regulation of the immune responses and suppression of anti-tumor defense. PD-1/B7-H1-blocking antibodies improve immune responses such as cytotoxic activity of CD8+/CD4+T cells and also increase mortality of tumor cells; however their use is accompanied by adverse effects in pat...

[ 8 ] - Induction of humoral immune responses and inhibition of metastasis in mice by a VEGF peptide-based vaccine

Objective(s): Blocking of vascular endothelial growth factor (VEGF) plays a pivotal role in inhibition of metastasis and is a target for development of anti-angiogenic agents. In this study, a peptide-based vaccine was designed and its potential for induction of humoral immune responses, generation of neutralizing antibodies, inhibition of tumor growth and metastasis w...

[ 9 ] - Immunological and Clinical Aspects of Immune Responses to SARS-CoV-2

The Coronavirus Disease 2019 (COVID-19) caused by a coronavirus named SARS-CoV-2 from the family Coronaviridae, was first reported in December 2019 in China. The disease have mild or severe symptoms such as fever, chills, cough, shortness of breath, body aches, and gastrointestinal symptoms, followed by severe inflammation, cytokine storm, acute respiratory distress syndrome, and dysfunction of...