1,606 results match your criteria: "Royan Institute for Stem Cell Biology & Technology[Affiliation]"

Establishment of a human 3D in vitro liver-bone model as a potential system for drug toxicity screening.

Arch Toxicol

November 2024

Department of Traumatology, Siegfried Weller Institute, BG-Klinik Tübingen, Eberhard Karls University, 72076, Tübingen, Germany.

Article Synopsis
  • Drug toxicity, particularly from non-steroidal anti-inflammatory drugs like diclofenac, contributes to chronic liver damage and disrupts bone health by affecting the liver-bone axis.
  • Researchers developed a reliable in vitro liver-bone co-culture model to study the effects of diclofenac on bone and liver interactions, finding optimal culture conditions for both systems.
  • The study revealed that chronic exposure to diclofenac enhances osteoclast-like cell activity in the co-culture, leading to reduced mineral content and stiffness in bone scaffolds, driven by oxidative stress and inflammation rather than diclofenac’s main metabolic products.
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Design of a microneedle-based enzyme biosensor using a simple and cost-effective electrochemical strategy to monitor superoxide anion released from cancer cells.

Anal Biochem

February 2025

Department of Cancer Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, Academic Center for Education, Culture and Research (ACECR), Babol, Iran; Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, Academic Center for Education, Culture and Research (ACECR), Tehran, Iran.

Early detection of Reactive oxygen species (ROS) concentration is very important in cancer diagnosis, pathological examinations, and health screening. Studies show that changes in ROS concentration occurs in a short time, causing irreparable damage to living cells and organs. Miniaturized sensors and microelectrodes are capable of online monitoring of electrochemical reactions both in vitro and in vivo.

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  • This study investigated the protective effects of diosgenin against testicular injury caused by methotrexate (MTX) in rats, evaluating the outcomes after MTX treatment followed by diosgenin administration.
  • The results indicated that MTX exposure led to increased oxidative stress and inflammation, resulting in lowered testosterone levels and noticeable testicular damage in the rats.
  • However, diosgenin treatment significantly reduced oxidative stress and inflammation markers, which suggests that it could help protect testicular tissue from the harmful effects of MTX.
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Tissue deterioration and post-injury infections are the primary cause of skin diseases. Tissue engineering has developed various synthetic and natural polymers to generate bioactive scaffolds that can closely replicate the natural extracellular matrix (ECM). Decellularized tissues have emerged as a potential solution for reconstructing cutaneous lesions due to their ability to preserve the intricate protein structure and provide essential functional domains for cellular differentiation.

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The aim of this study was to investigate the effects of omega-3 fatty acids on blood biochemical parameters, histological changes in pulmonary artery, cardiomyocytes, and liver, as well as the expression of ACACA, PFK1, and ET-1 genes in broiler chickens under environmental stress (high stoking density). A total of 420 one-day-old male Ross broilers were used in a 2 × 2 factorial arrangements, with 2 levels of environmental stress (without and with stress; 9 and 17 birds/m, respectively) and 2 levels of omega-3 fatty acids (low and high; 0.057 and 0.

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Deep skin wounds require grafting with a skin substitute for treatment. Despite many attempts in the development of an affordable and efficient skin substitute, the repair of deep skin wounds still remains challenging. In the current study, we present a 3D sponge composite made from human placenta (a disposable organ) and sodium alginate with exceptional properties for skin tissue engineering applications.

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AI-Based solutions for current challenges in regenerative medicine.

Eur J Pharmacol

December 2024

Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran; Experimental Cancer Medicine, Institution for Laboratory Medicine, Karolinska Institute, Stockholm, Sweden. Electronic address:

The emergence of Artificial Intelligence (AI) and its usage in regenerative medicine represents a significant opportunity that holds the promise of tackling critical challenges and improving therapeutic outcomes. This article examines the ways in which AI, including machine learning and data fusion techniques, can contribute to regenerative medicine, particularly in gene therapy, stem cell therapy, and tissue engineering. In gene therapy, AI tools can boost the accuracy and safety of treatments by analyzing extensive genomic datasets to target and modify genetic material in a precise manner.

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Background: Wound healing represents a complex biological process, critically important in clinical practice due to its direct implication in a patient's recovery and quality of life. Conservative wound management frequently falls short in providing an ideal environment for the optimal tissue regeneration, often resulting in extended healing periods and elevated risk of infection and other complications. The emerging biomaterials, particularly hydrogels, have shown substantial promise in addressing these challenges by offering properties such as biocompatibility, biodegradability, and the ability to cure wound environment.

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Study Design: A systematic review and meta-analysis OBJECTIVE: To determine the global frequency of osteomyelitis in individuals with spinal cord injury who have pressure injuries (SCI-PI).

Methods: A comprehensive search on PubMed, EMBASE, Scopus, and the Web of Science has been conducted until November 2023. The Cochrane Handbook for Systematic Reviews was followed.

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Extracellular vesicles derived from Msh homeobox 1 (Msx1)-overexpressing mesenchymal stem cells improve digit tip regeneration in an amputee mice model.

Sci Rep

October 2024

Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.

Article Synopsis
  • In adult mammals, limb regeneration is hampered by the lack of blastemal cells and regenerative signaling, but transgenic techniques using blastema-like cells (BlCs) from stem cells show potential for regeneration.
  • This research explores the use of extracellular vesicles (BlCs-EVs) derived from BlCs, which were confirmed through various analyses and demonstrated promising properties like growth factor presence.
  • Results from experiments indicated that BlCs-EVs significantly enhanced the abilities of mesenchymal stem cells and improved digit tip regeneration in mice, suggesting a viable alternative to more controversial regenerative methods.
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  • Immune stressors like LPS disrupt gut microbiota, leading to gut dysbiosis, which can interfere with mammary gland development during puberty and potentially increase breast cancer risk later in life.
  • The study tests the hypothesis that prebiotics, specifically Lentinula edodes Cultured Extract (AHCC), can counteract the negative effects of LPS by examining cytokine levels, microRNA expressions, and tumor development in mice following LPS exposure.
  • Results indicate that while LPS leads to long-term changes in cytokine and microRNA levels in mammary glands, AHCC helps regulate these changes, particularly by counteracting harmful microRNAs associated with tumor progression, suggesting possible dietary interventions
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  • - The spliced form of X-box binding protein 1 (XBP1s) plays a crucial role in the unfolded protein response (UPR) and is linked to increased proliferation and survival rates in various cancers, particularly hepatocellular carcinoma (HCC).
  • - This study investigated the effects of targeting XBP1s in Huh-7 liver cancer cells using specific decoy oligodeoxynucleotides (ODNs), assessing outcomes like cell viability and migration through techniques such as wound healing tests and assays for proliferation and apoptosis.
  • - Results showed that using XBP1s decoy ODN significantly decreased cell viability, proliferation, and migration while increasing the expression of certain genes, suggesting a potential therapeutic strategy
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Exploring circulating MiRNA signature for osteosarcoma detection: Bioinformatics-based analyzing and validation.

Pathol Res Pract

November 2024

Bone and Joint Reconstruction Research Center, Department of Orthopedics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran. Electronic address:

Article Synopsis
  • The study focuses on improving early detection and treatment of osteosarcoma (OS) by examining circulating miRNAs as a non-invasive diagnostic tool.
  • Utilizing RNAseq and PCR Array data, researchers identified 43 significantly expressed miRNAs and developed a diagnostic model based on four specific miRNAs, showing high accuracy in distinguishing OS patients from healthy individuals.
  • The research reveals that the down-regulation of these miRNAs is linked to poor prognosis and lower survival rates, indicating their potential role as tumor suppressors and establishing connections to key cancer-related signaling pathways, paving the way for future therapeutic strategies.
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Centromeres are critical structures involved in chromosome segregation, maintaining genomic stability, and facilitating the accurate transmission of genetic information. They are key in coordinating the assembly and help keep the correct structure, location, and function of the kinetochore, a proteinaceous structure vital for ensuring proper chromosome segregation during cell division. Abnormalities in centromere structure can lead to aneuploidy or chromosomal instability, which have been implicated in various diseases, including cancer.

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Background: Traumatic brain injury (TBI) is a significant global health concern and is characterized by brain dysfunction resulting from external physical forces, leading to brain pathology and neuropsychiatric disorders such as anxiety. This study investigates the effects of TC-DAPK6 on tau hyper-phosphorylation, gene expression, anxiety, and behavior impairment in the TBI mice model.

Methods And Results: A weight drop model induced the TBI and the anxiety levels were evaluated using an elevated plus maze (EPM) test.

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This review paper explores the cutting-edge advancements in hydrogel design for articular cartilage regeneration (CR). Articular cartilage (AC) defects are a common occurrence worldwide that can lead to joint breakdown at a later stage of the disease, necessitating immediate intervention to prevent progressive degeneration of cartilage. Decades of research into the biomedical applications of hydrogels have revealed their tremendous potential, particularly in soft tissue engineering, including CR.

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Investigating the influence of estrous cycle-dependent hormonal changes on neurogenesis in adult mice.

Steroids

December 2024

Department of Cellular and Molecular Biology, School of Biology, Damghan University, Damghan, Iran. Electronic address:

Objective: Neurogenesis is the process of generating new neurons from neural stem cells (NSCs) in the adult brain. Sex hormones play an essential role in the development of the brain. The aim of this study was to evaluate the neurogenic changes in the brain at different phases of the estrous cycle in adult mice.

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Linking gut microbiota dysbiosis to molecular pathways in Alzheimer's disease.

Brain Res

December 2024

Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran. Electronic address:

Background: Alzheimer's disease (AD) is a progressive neurodegenerative disorder marked by cognitive decline and synaptic dysfunction. Emerging evidence suggests a significant relationship between gut microbiota and brain health, mediated through the gut-brain axis. Alterations in gut microbiota composition may influence AD progression by affecting molecular pathways and miRNA interactions.

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Switchable PAMAM megamers for deep tumor penetration and enhanced cell uptake.

J Control Release

November 2024

Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran; Nanotechnology Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran; Leicester School of Pharmacy, De Montfort University, Leicester, United Kingdom. Electronic address:

Nanoparticles fabricated to deliver anticancer drugs are usually designed to present optimized tumor penetration and cell internalization. However, there are some barriers and difficulties with most current technologies. Herein, size and charge switchable polyamidoamine (PAMAM) megamers (SChPMs) were prepared for the delivery of doxorubicin (DOX).

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Local Transplantation of Mesenchymal Stromal Cells Is Safe and Could Alleviate Kienböck Disease's Complications: A Clinical Trial Study.

Cell J

September 2024

Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran. Email:

Objective: Kienböck disease is a rare condition characterized by severe pain and restricted wrist movement. Various palliative methods have been proposed as therapeutic strategies for alleviating symptoms. Mesenchymal stromal cell transplantation has been suggested as an innovative and promising approach due to its potential for inducing regeneration and immunomodulation in the necrotic tissue.

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Fibrotic liver extracellular matrix induces cancerous phenotype in biomimetic micro-tissues of hepatocellular carcinoma model.

Hepatobiliary Pancreat Dis Int

September 2024

Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR 14155-4364 Tehran, Iran; Experimental Cancer Medicine, Institution for Laboratory Medicine, Karolinska Institute, Stockholm, Sweden. Electronic address:

Background: Despite considerable advancements in identifying factors contributing to the development of hepatocellular carcinoma (HCC), the pathogenesis of HCC remains unclear. In many cases, HCC is a consequence of prolonged liver fibrosis, resulting in the formation of an intricate premalignant microenvironment. The accumulation of extracellular matrix (ECM) is a hallmark of premalignant microenvironment.

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The potential of extracellular vesicles (EVs) isolated from mesenchymal stromal cells in guiding macrophages toward anti-inflammatory immunophenotypes, has been reported in several studies. In our study, we provided experimental evidence of a distinctive effect played by Wharton Jelly mesenchymal stromal cell-derived EVs (WJ-EVs) on human macrophages. We particularly analyzed their anti-inflammatory effects on macrophages by evaluating their interactions with stellate cells, and their protective role in liver fibrosis.

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The patient-reported outcomes for the new brand-generic teriflunomide in relapsing-remitting multiple sclerosis.

Clin Neurol Neurosurg

November 2024

Department of Neurology, Amiralam Hospital, Tehran University of Medical Sciences, Tehran, Iran,; Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Unverstät zu Berlin, Experimental and Clinical Research Center, Berlin, Germany; Department of Regional Health Research and Molecular Medicine, University of Southern Denmark, Odense, Denmark. Electronic address:

Background: Patient-reported outcomes (PROs) provide valuable insights into the impact of disease-modifying therapies (DMTs) on patients' daily lives and disease progression. This study evaluates treatment satisfaction and tolerability among patients using a brand-generic Teriflunomide (Tebazio®, 14 mg tablet) manufactured by Zistdaru Danesh Biopharmaceuticals.

Materials And Methods: A Phase IV observational study was conducted on patients with Relapsing-Remitting Multiple Sclerosis (RRMS) who were either initiated on or switched to Teriflunomide 14 mg.

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