Abbas Ghaderi
Shiraz Institute for Cancer Research, Shiraz University of Medical Sciences, Shiraz, Iran|Department of Immunology, Shiraz University of Medical Sciences, Shiraz, Iran
[ 1 ] - Umbelliprenin induced both anti-inflammatory and regulatory cytokines in C57/BL6 mice
Objective(s): Umbelliprenin is a prenyloxy-coumarin with pharmacologically polyvalent activity. Several studies have shown its anti-inflammatory, anti-tumor, antioxidant, and antigenotoxic activity, and other functions. However, the exact mechanism of action of this compound on the immune response has not yet been shown. Here, we investigated umbelliprenin effects on the predominance of Th1 and...
[ 2 ] - Induction of T Regulatory Subsets from Naïve CD4+ T Cells after Exposure to Breast Cancer Adipose Derived Stem Cells
Background: Adipose derived stem cells (ASCs) provoke the accumulation and expansion of regulatory T cells, leading to the modulation of immune responses in tumor microenvironment. Objective: To assess the effect of tumoral ASCs on the trend of regulatory T cells differentiation. Methods: Peripheral blood naïve CD4+ T cells were co-cultured with ASCs derived from breast cancer or normal breast ...
[ 3 ] - IL-17 and IL-4 Producing CD8+ T Cells in Tumor Draining Lymph Nodes of Breast Cancer Patients: Positive Association with Tumor Progression
Background: CD8+ cytotoxic T lymphocytes have been recently divided based on their cytokine expression profile. Objective: To evaluate the percentages of CD8+ lymphocytes and their effector subsets including Tc1, Tc2 and Tc17 in the tumor draining lymph nodes (TDLNs) of patients with breast cancer. Methods: Single cell suspensions were obtained from TDLNs of 42 patients with breast cancer. Stai...
[ 4 ] - CCL22 16C/A Genetic Variation is not Associated with Breast Carcinoma in Southern Iranian Population
Background: CCL22/MDC is a CC chemokine with a critical role in regulation of the immune balance in physiological condition. CCL22/CCR-4 ligation has been documented to participate in the migration of regulatory T (Treg) cells and Th2 lymphocytes to the site of breast tumors; circumstances that are known to be associated with poor prognosis. Objective: To investigate the association of a single...
[ 5 ] - Strong Association of CTLA-4 Variation (CT60A/G) and CTLA-4 Haplotypes with Predisposition of Iranians to Head and Neck Cancer
Background: Variations in Cytotoxic T Lymphocyte Antigen-4 (CTLA-4) affect the expression and function of this protein. Objective: We aimed to investigate the association of +49 A/G (rs231775), +1822 C/T (rs231779) and +6230 A/G (CT60, rs3087243) genetic variations, as well as the merged haplotypes in CTLA-4 gene with susceptibility to, or progression of head and neck cancer. Methods: Eighty pa...
[ 6 ] - CTLA4 Gene Variants in Autoimmunity and Cancer: a Comparative Review
Gene association studies are less appealing in cancer compared to autoimmune diseases. Complexity, heterogeneity, variation in histological types, age at onset, short survival, and acute versus chronic conditions are cancer related factors which are different from an organ specific autoimmune disease, such as Grave’s disease, on which a large body of multicentre data is accumulated. For years t...
[ 7 ] - Mesenchymal Stem Cells Do Not Suppress Lymphoblastic Leukemic Cell Line Proliferation
Background: Several studies have demonstrated the immunosuppresive effects of mes-enchymal stem cells (MSCs) in allogeneic or mitogenic interactions. Cell-cell contact inhibition and secretion of suppressive soluble factors have been suggested in this re-gard. Objective: To investigate if adipose derived MSCs could inhibit Jurkat lym-phoblastic leukemia T cell proliferation during coculture. Me...
[ 8 ] - Analysis of Human Leukocyte Antigen class II Gene Polymorphism in Iranian Patients with Papillon-Lefevre Syndrome: a Family Study
Background: Papillon-Lefevre syndrome (PLS) is a rare autosomal recessive disorder characterized by palmoplantar hyperkeratosis and early development of aggressive pe-riodontitis. Although cathepsin C (CTSC) gene mutations have been established in about 70-80% of PLS patients, it is assumed that the patients may have dysfunctioning of immune defense mechanisms. Objective: To assess the associat...
[ 9 ] - Production and Characterization of a Monoclonal Antibody against an Antigen on the Surface of Non-Small Cell Carcinoma of the Lung
Background: Lung carcinoma is a multiple type cancer comprising of small cell and non-small cell carcinomas (NSCLC). For therapeutic and diagnostic purposes, serum monoclonal antibodies have been produced against lung cancer. Objective: To charac-terize a murine monoclonal antibody (ME3D11) reactive with human NSCLC. Methods: A murine monoclonal antibody (ME3D11) reactive with human NSCLC was s...
[ 10 ] - HLA class II Genetic Diversity in Arabs and Jews of Iran
Background: Anthropological studies based on highly polymorphic HLA genes pro-vide useful information for bone marrow donor registry, forensic medicine, disease as-sociation studies, as well as designing peptide vaccines against tumors, and infectious or autoimmune diseases. Objective: This study was designed to investigate the genetic relationship of Iranian Arabs and Jews using HLA-class II g...
[ 11 ] - IgM, IgG, IgA Serum Levels and Lymphocytes Count Before and After Adenotonsillectomy
Background: Tonsils and adenoids are involved in both local immunity and immune surveillance for the development of immune defense mechanisms. A number of investigators have found decreased immunoglobulin levels after adenotonsillectomy while others have failed to find significant changes. The effects of adenotonsillectomy on the cellular immunity of children have not been investigated extensiv...
[ 12 ] - Iranian Lurs Genetic Diversity: An Anthropological View Based on HLA Class II Profiles
Background: HLA genes are highly polymorphic and certain alleles are frequent only in specific populations. Therefore, HLA is a unique tool for studying the genetic relationship between different populations. Iranians are ethnically diverse people and one of the major ethnic groups in Iran is Lur population inhabiting along the central and southern parts of Zagros Chain Mountain. Objectives: Ge...
[ 13 ] - Determination of Soluble HER-2/neu (sHER-2/neu) in Iranian Patients with Lung Cancer
Background: The HER-2/neu gene is located on chromosome 17q21 and encodes a 185-kDa transmembrane glycoprotein with tyrosine kinase activity reported to be released in soluble form in various malignancies. Objective: To evaluate the clinical significance of soluble Her-2/neu as a diagnostic marker in lung cancer. Methods: Serum levels of soluble HER-2/neu were measured in 43 patients with lung ...
[ 14 ] - Serum Level of HER-2 Extracellular Domain in Iranian Patients with Breast Cancer: A Follow-up Study
Background: A soluble form of HER-2/neu extracellular domain (sHER-2) is reported to be released in the sera of metastatic breast cancer patients. Objective: To measure the level of sHER-2 in sera of 115 breast cancer patients. Methods: Serial samples of 27 patients with metastasis, 18 non-metastatic patients, 15 patients in stage 0/I and 14 patients with accompanying benign breast disease were...
[ 15 ] - Lack of Association between ctla-4 A49G Polymorphism and Vitiligo
Background: Vitiligo is an acquired skin disorder that selectively destroys melanocytes in epidermis with an unknown etiology. Objective: To investigate the exon 1 A49G polymorphism of cytotoxic T lymphocyte antigen-4 (ctla-4) gene in vitiligo patients. Methods: The A49G polymorphism was detected by Polymerase Chain Reaction-Restriction Fragment Length Polymorphism (PCR-RFLP) method in 101...
[ 16 ] - Production and Characterization of Murine Monoclonal Antibodies to Leishmania Gp63 Antigen
Background : Production of monoclonal antibodies to Leishmania antigens assists the identification and characterization of these organisms. Objective: Production of monoclonal antibodies against epitopes on the gp63. Methods: Two murine monoclonal antibodies to gp63 were produced and characterized. The reactions of both antibodies with soluble leishmanial antigens, purified gp63 and truncated r...
[ 17 ] - Immunological Correlates of Adult Onset Idiopathic Generalized Tonic-clonic Epilepsy before and after Sodium Valproate Treatment
Objective: To investigate possible immunological humoral correlates in newly diagnosed adult-onset generalized tonic-clonic epilepsy among Iranian patients before and after sodium valproate treatment. Patients and Methods: 72 adult patients with newly diagnosed idiopathic generalized tonic-clonic epilepsy were recruited. Serum antinuclear antibodies (ANA), anti-cardiolipin antibodies (aCL), a...
[ 18 ] - Anticardiolipin Antibody in Patients with Behçet's Disease with and without Vascular Thrombosis
Objective: The clinical value of IgG anticardiolipin antibody in patients with Behçet's disease with or without vascular thrombosis was evaluated. Methods: IgG isotype of anticardiolipin (aCL) antibody was assessed in 40 Behçet's disease (BD) patients with venous or arterial thrombosis, 40 BD patients without venous or arterial thrombosis and 80 healthy subjects as controls. The levels of IgG...
[ 19 ] - Anticardiolipin Antibodies in Juvenile Rheumatoid Arthritis and Systemic Lupus Erythematosus
Background: Antiphospholipid antibody syndrome (APS) can either occur as a primary syndrome or associated with other autoimmune diseases such as systemic lupus erythematosus (SLE). Anticardiolipin antibody (aCL) of IgG and/or IgM isotype in blood, measured by a standardized ELISA is the most acceptable laboratory criteria. APS IgG isotype, particularly IgG2 subclass is more strongly associated ...
[ 20 ] - Tumor Markers in Patients Undergoing Hemodialysis and Kidney Transplantation
Objective: To evaluate the effect of dialysis and kidney transplantation on serum levels of several tumor markers such as PSA, AFP, CA125, CA19- 9, CA15-3, CEA and to compare with normal age matched controls. Methods: Between September of 2000 and July of 2001, the following tumor markers: PSA, AFP, CA125, CA19-9, CA15-3 and CEA were measured by ELISA Method in 29 hemodialyzed patients (group A...
[ 21 ] - Detection of Rheumatoid Factors in Sera and Biopsy Lesions of Vitiligo Patients
Background: Vitiligo is a dermatological disorder of unknown etiology with a common incidence in southern Iran. Presence of autoantibodies to melanocyte antigens suggested an autoimmune basis of the disease. Objective: In this study, the presence of rheumatoid factor (RF) in sera and skin biopsies of vitiligo patients was investigated. Methods: The presence of RF in sera of 35 vitiligo and 32 n...
[ 22 ] - Production and Characterization of Monoclonal Antibodies against Brucella abortus S (99) Surface Antigens
By immunizing mice with killed whole bacterial cells of Brucella abortus S (99), a panel of six hybridomas producing monoclonal antibodies (mAb) specific for the surface antigens of this bacterium were produced. ELISA was used to screen the hybridoma supernatants. Immunoblots of the cell extract indicated that three mAb were specific for S-LPS (Ba-1, Ba-2, Ba-3) and three others were reactive w...
[ 23 ] - Evaluation of pre-treatment serum levels of IL-7 and GM-CSF in colorectal cancer patients
Background: Survival of Colorectal cancer (CRC) patients is considerably stage-dependent therefore, early diagnosis is a pivotal factor in decreasing mortality and morbidity associated with this cancer. GM-CSF and IL-7 are reported to increase in different cancers and we aim to investigate the pre-treatment serum levels of GM-CSF and IL-7 in Iranian patients with colorectal cancer. Methods: ...
[ 24 ] - Serum Levels of Glial Fibrillaryacidic Protein in Meningioma
Background: Glial fibrillaryacidic protein (GFAP), an intermediate filament protein, is mainly expressed by astrocytes, but some other cells like enteric glia and non-myelinating Schwann cells can also express GFAP. GFAP elevation has been reported in some types of meningioma and malignant brain tumors. In the present study, we analyzed the association between serum levels of GFAP with meningio...
[ 25 ] - Cloning and Expression of Recombinant Human Interleukin-7 in Chinese Hamster Ovary (CHO) Cells
Background: The critical role of interleukin-7 (IL-7) in homeostatic proliferation and T cell survival has made it a promising cytokine for the treatment of various clinical conditions, especially those associated with lymphopenia. Methods: In the present study we expressed recombinant human interleukin-7 (rhIL-7) in Chinese hamster ovary (CHO)-K1 cells. CHO-K1 cells were stably transfected ...
[ 26 ] - Establishment a CHO Cell Line Expressing Human CD52 Molecule
Background: CD52 is a small glycoprotein with a GPI anchor at its C-terminus. CD52 is expressed by Normal and malignant T and B lymphocytes and monocytes. There are detectable amounts of soluble CD52 in plasma of patients with CLL and could be used as a tumor marker. Although the biological function of CD52 is unknown but it seems that CD52 may be involved in migration and activation of T-cells...
[ 27 ] - Correlation of 4-1BBL+ B Cells in Tumor Draining Lymph Nodes with Pathological Characteristics of Breast Cancer
Background: B cells can increase the expression of granzyme B in CD8+ T cells through 4-1BBL/4-1BB interaction and promote anti-tumor immunity. Objective: To investigate the expression of 4-1BBL on B cells in the breast tumor draining lymph nodes (TDLNs) and its association with disease parameters. Methods: Using Ficoll-Hypaque gradi...
[ 28 ] - Association of rs9122 Polymorphism in the MCC Gene with Increasing the Risk of Gastric Cancer
Abstract Background and Aim: Gastric cancer is one of the most common malignancies in the world. Genetic background is known to be one of the risk factors for gastric cancer. One of the genes that have been shown to be involved in various cancers, including gastric cancer, is the MCC gene. There are many SNPs in the MCC gene in the encoding and regulatory regions, one of which is rs9122, which ...
[ 29 ] - Investigation of TNF-α and IL-6 Levels in the Sera of Non-Melanoma Skin Cancer Patients
Background: TNF-α and IL-6 are both pleiotropic cytokines playing major roles in cancer-associated cytokine networks. They have previously been investigated for their function in skin malignancies, mostly melanomas, and studies on NMSC patients are relatively fewer. In this study, we aimed to investigate the associations of serum levels of IL-6 and TNF-α with NMSCs and its clinicopathological f...
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