245 results match your criteria: "Hematology-Oncology and Stem Cell Transplantation Research Center[Affiliation]"

Construction of a stromal-related prognostic model in acute myeloid leukemia by comprehensive bioinformatics analysis.

Curr Res Transl Med

January 2025

Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Hematology-Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran. Electronic address:

Background: Stromal cells play a pivotal role in the tumor microenvironment (TME), significantly impacting the progression of acute myeloid leukemia (AML). This study sought to develop a stromal-related prognostic model for AML, aiming to uncover novel prognostic markers and therapeutic targets.

Methods: RNA expression data and clinical profiles of AML patients were retrieved from the Cancer Genome Atlas (TCGA).

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Exosomes are small extracellular vesicles of endocytic origin released by various cell types. They consist of lipid bilayers containing macromolecules such as lipids, proteins, microRNAs, growth factors, cytokines, and carbohydrates. Exosomes play a critical role in the diagnosis and treatment of various diseases.

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Background: Chronic Myeloid Leukemia (CML), accounting for 15-20% of adult leukemia cases, is marked by the Philadelphia chromosome, resulting from the t(9;22)(q34;q11) translocation. This leads to uncontrolled cell proliferation and survival. Imatinib therapy lowers BCR-ABL levels, influencing telomere-associated proteins and increasing telomerase accessibility, indirectly boosting its activity.

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Anti-P1 is immunoglobulin M type and occurs naturally; it is often detected as a weak- and cold-reactive antibody. However, in rare cases, it is reactive at 37°C or shows hemolytic transfusion reactions. The presence of high thermal amplitude of anti-P1 cannot be ignored and requires cross-match compatible red blood cells for transfusion.

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Background: The treatment of choice for Extra-osseous Ewing's sarcoma/primitive neuroectodermal tumor (ES/PNET), a rare neoplasm, is the VAC/IE regimen. This regimen includes Doxorubicin, Vincristine, Cyclophosphamide, Ifosfamide, and Etoposide, all of which have cardiotoxic effects. Myocarditis, a potentially threatening side effect following cancer therapy, can be accurately managed and diagnosed.

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Article Synopsis
  • This study investigates the link between specific HLA alleles and the risk of acute lymphoblastic leukemia (ALL) in an Iranian population.
  • Using a case-control design, researchers compared 71 ALL patients to 71 healthy individuals and employed a specialized genetic testing technique for allele identification.
  • Results indicated that HLA-DRB1*04 is associated with a higher risk for ALL, while HLA-A*26, HLA-A*33, and HLA-DRB1*03 may provide protective benefits against the disease.
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Unlike MCF-7 cells, MDA-MB-231 cells are unresponsive to hormone therapy and often show resistance to chemotherapy and radiotherapy. Here, the antiproliferative effect of biocompatible montmorillonite (Mt) nanosheets on MDA-MB-231 and MCF-7 human breast cancer cells was evaluated by MTT assay, flow cytometry, and qRT-PCR. The results showed that the Mt IC for MDA-MB-231 and MCF-7 cells in a fetal bovine serum (FBS)-free medium was ~50 and ~200 µg/mL, and in 10% FBS medium ~400 and ~2000 µg/mL, respectively.

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Objective: To evaluate the diagnostic value of [ 68 Ga] Ga-Pentixafor in malignant melanoma patients.

Methods: In this prospective study, patients with histology-proven melanoma were included and underwent [ 18 F]fluoro-D-glucose ([ 18 F]FDG) and [ 68 Ga] Ga-Pentixafor PET/computed tomography (CT) within a week. Suspicious lesions were interpreted as benign vs.

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Expression Analysis of Long Noncoding RNA-MALAT1 and Interleukin-6 in Inflammatory Bowel Disease Patients.

Iran J Allergy Asthma Immunol

October 2023

Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

 Inflammatory bowel disease (IBD) manifests as chronic inflammation within the gastrointestinal tract. The study focuses on a long noncoding RNA (lncRNA) known as Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1). MALAT1's misregulation has been linked with various autoimmune diseases and regulates proinflammatory cytokines.

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Introduction: Colorectal cancer (CRC) is a devastating disease that affects millions of people worldwide. Recent research has highlighted the crucial role of the guanylate cyclase-C (GC-C) signaling axis in CRC, from the early stages of tumorigenesis to disease progression. GC-C is activated by endogenous peptides guanylin (GU) and uroguanylin (UG), which are critical in maintaining intestinal fluid homeostasis.

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Background: Chronic obstructive pulmonary disease (COPD) is characterized by persistent respiratory symptoms and airflow limitation due to airway and/or alveolar remodeling. Although the abnormalities are primarily prompted by chronic exposure to inhaled irritants, maladjusted and self-reinforcing immune responses are significant contributors to the development and progression of the disease. The p38 isoforms are regarded as pivotal hub proteins that regulate immune and inflammatory responses in both healthy and disease states.

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Chemo-immune cell therapy by intratumoral injection of adoptive NK cells with capecitabine in gastric cancer xenograft model.

Bioimpacts

September 2022

Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Introduction: Gastric cancer is one of the most commonly known malignancies and is the fifth cancer-related death globally. Whereas natural killer (NK) cells play a critical role in tumor elimination; therefore, adoptive NK cell therapy has become a promising approach in cancer cytotherapy. Hence, this study investigated the chemo-immune cell therapy in MKN-45 derived xenograft gastric cancer model.

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Meta-analysis of integrated ChIP-seq and transcriptome data revealed genomic regions affected by estrogen receptor alpha in breast cancer.

BMC Med Genomics

September 2023

Laboratory of Complex Biological Systems and Bioinformatics (CBB), Department of Bioinformatics, Institute of Biochemistry and Biophysics (IBB), University of Tehran, Tehran, Iran.

Background: The largest group of patients with breast cancer are estrogen receptor-positive (ER) type. The estrogen receptor acts as a transcription factor and triggers cell proliferation and differentiation. Hence, investigating ER-DNA interaction genomic regions can help identify genes directly regulated by ER and understand the mechanism of ER action in cancer progression.

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Identification of LncPVT1 and CircPVT1 as prognostic biomarkers in human colorectal polyps.

Sci Rep

August 2023

Department of Cancer, Gastroenterology and Liver Disease Research center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Article Synopsis
  • LncPVT1 and CircPVT1 are two forms of the PVT1 gene linked to cancer progression, and this study examined their levels in colon adenoma polyps versus normal tissues.
  • Both LncPVT1 and CircPVT1 showed significantly higher expression in adenoma polyps compared to normal-adjacent tissues and hyperplastic polyps, indicating their potential role in early cancer detection.
  • The study also identified specific miRNAs involved in the cancer development network and suggested that LncPVT1 and CircPVT1 could serve as potential biomarkers for predicting colorectal cancer risk in patients with precancerous polyps.
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Background: Placenta-specific 1 (PLAC1) is one of the cancer-testis-placenta antigens that has no expression in normal tissue except placenta trophoblast and testicular germ cells, but is overexpressed in a variety of solid tumors. There is a lack of studies on the expression of PLAC1 in leukemia. We investigated expression of in Acute Myeloid Leukemia (AML) and Acute Lymphoblastic Leukemia (ALL).

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Objectives: Fanconi anemia (FA) is a rare, heterogeneous, inherited disorder. Allogeneic hematopoietic stem cell transplantation (HSCT) represents the only therapeutic option to restore normal hematopoiesis. This study reports the outcomes of FA-HSCT patients and identifies factors, including clinical phenotype.

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Background: Anaplastic thyroid cancer (ATC) is an aggressive subtype of thyroid cancer, accounting for 1 to 2% of all cases. Deregulations of cell cycle regulatory genes including cyclins, cyclin-dependent kinases (CDKs), and endogenous inhibitors of CDKs (CKIs) are hallmarks of cancer cells and hence, studies indicate the inhibition of CDK4/6 kinases and cell cycle progression as potent therapeutic strategies. In this study, we investigated the anti-tumor activity of Abemaciclib, a CDK4 and CDK6 inhibitor, in ATC cell lines.

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A declining need for red blood cells coupled with strengthening demand for plasma-derived medicines has led to a strong focus on moving whole blood donors to plasmapheresis. The purpose of this study was to evaluate the four-year policies of the Iranian Blood Transfusion Organization (IBTO) in terms of plasmapheresis recruitment of first-time donors and its effect on plasmapheresis outcome.   Plasmapheresis data related to 16 centers from 2016 to 2019 was obtained from IBTO software.

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Breast cancer is a complex disease exhibiting a great degree of heterogeneity due to different molecular subtypes. Notch signaling regulates the differentiation of breast epithelial cells during normal development and plays a crucial role in breast cancer progression through the abnormal expression of the Notch up-and down-stream effectors. To date, there are only a few patient-centered clinical studies using datasets characterizing the role of Notch signaling pathway regulators in breast cancer; thus, we investigate the role and functionality of these factors in different subtypes using publicly available databases containing records from large studies.

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Considerations about Reducing False-Negative PCR Test for COVID-19.

Int J MCH AIDS

November 2022

Hematology Oncology and Stem Cell Transplantation Research Center, Shariati Hospital, North Karegar Ave., Tehran, Iran.

Polymerase chain reaction (PCR) for the detection of nucleic acids is the gold standard test for the diagnosis of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). However, there is the probability of false-negative results with this test, which poses a threat to public health. Here, we highlight some important factors that should be considered for reducing the false-negative results of the SARS-CoV-2 PCR test.

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Efficacy of adoptively transferred allogeneic CIK cells on colorectal cancer: Augmentative antitumoral effects of GvHD.

Int Immunopharmacol

January 2023

Gene Therapy Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran; SABZ Biomedicals Science-Based Company, Tehran, Iran. Electronic address:

Objective: A preclinical study was designed to evaluate the effects of adoptively transferred cytokine-induced killer (CIK) cells on colorectal adenocarcinoma.

Methods: Forty NOG mice bearing HT-29 xenograft tumors were developed and equally divided into 2 groups of treatment and control. The mice in the treatment group received cumulatively 40-60 × 10 CIK cells in four divided doses.

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Objectives: HLA alloimmunization is one of the most troublesome consequence of regular transfusion which is itself a mainstay measure to provide longevity to the thalassemia patients. Febrile non-hemolytic transfusion reaction (FNHTR) is one of the most common complication which might be related to the HLA alloimmunization. Here, we studied the HLA antigenic system and alloimmunization rate in the Iranian β-thalassemia patients who suffered from FNHTR compare to the β-thalassemia patients without FNHTR.

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The goal of this study was to identify biomarker(s) to assign risk of mortality in COVID-19 patients to improve intensive care unit (ICU) and coronary care unit  management. A total of 100 confirmed COVID-19 patients admitted at Imam Khomeini Hospital in Tehran, were compared to 70 control subjects. Peripheral blood leukocyte was studied using staining reagents included CD3, CD4, CD8, HLA-DR, CD19, CD16, and CD56.

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Investigation of the potential of leukoreduction filters in the creation of anti-inflammatory compound.

Transfus Apher Sci

February 2023

Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran; Pediatric Congenital Hematologic disorders research center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Background: Some viruses such as SARS, SARS-CoV-2, and MERS cause an imbalance in immune responses and leads to an acute inflammatory reaction named cytokine storm. In this situation, an anti-inflammatory component can modulate the immune system and decrease mortality. The aim of this study was investigate the potential of leukoreduction filters (LRFs) in creating an anti-inflammatory compound.

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