OGFr overexpression exerts anti-hepatocellular carcinoma effects by activating P16 and P21 to inhibit proliferation and migration of HepG2 cells
Hepatocellular carcinoma (HCC) is the sixth most common type of cancer and the second leading cause of cancer death worldwide [19]. Opioid growth factor (OGF) has been shown to exhibit antitumour potential, binding to OGF receptor (OGFr). Naltrexone (NTX), an OGFr antagonist, is considered as a potential anti-cancer agent. However, the specific mechanism of how OGFr acts on HCC cells is yet to be elucidated.
Anti-atherosclerotic effects of LncRNA NEXN-AS1 by regulation of the canonical inflammasome pathway of pyroptosis via NEXN
. Pyroptosis is closely related to many chronic diseases including atherosclerosis, but the potential pathomechanisms are still unclear. This research aimed to explore how lncRNAs may contribute to pyroptosis and the potential mechanisms.
Long non-coding RNA HOTAIR promotes tumorigenesis by affecting proliferation, invasion, migration and apoptosis of liver cancer cells
Increasing evidence shows that Hox transcript antisense RNA (HOTAIR) plays a vital role in liver cancer initiation and progression by affecting the proliferation, invasion, migration and apoptosis of liver cancer cells. However, the underlying mechanism of how HOTAIR exerts its functions in liver cancer cells remains unclear. Previous studies have shown that HOTAIR affects the invasion and migration of liver cancer cells by regulating the expression of E-cadherin. Snail2, a transcription factor involved in epithelial-mesenchymal transition, directly binds to the E-boxes of theE-cadherinpromoter to repress its transcription. The aim of the study was to examine the correlation between HOTAIR and Snail2 in the HOTAIR/Snail2/E-cadherin signal pathway and explore the role of HOTAIR in the proliferation, invasion, migration and apoptosis of liver cancer cells.
Nephroprotective effect of Ginsenoside Rg1 in lipopolysaccharide-induced sepsis in mice through the SIRT1/NF-κB signaling
During sepsis, the kidney is one of the most vulnerable organs. Sepsis-associated acute kidney injury (S-AKI) is hallmarked by renal inflammation, apoptosis, and oxidative injury. Ginsenoside Rg1 (Rg1) is a natural product that possesses abundant pharmacological actions and protects against many sepsis-related diseases. Nevertheless, its role and related mechanism in S-AKI remain to be determined.
Inhibition of IGF2BP1 attenuates the progression of endometriosis through PTBP1
Endometriosis (EMs), manifested by pain and infertility, is a chronic inflammatory disease. The precise pathophysiology of this disease remains uncertain. Insulin-like growth factor-2 mRNA-binding protein 1 (IGF2BP1) and polypyrimidine tract-binding protein 1 (PTBP1) have both been found to regulate proliferation, apoptosis, and invasion. This study aimed to investigate the effects of IGF2BP1/PTBP1 in treating EMs.
Effects of bone marrow mesenchymal stem cell-conditioned medium on the proliferation and migration of liposarcoma cells
Liposarcoma constitutes a prevalent subtype of soft tissue sarcoma, represents approximately 20% of all sarcomas. However, conventional chemotherapeutic agents have shown restricted effectiveness in treating liposarcoma patients. Accumulating evidence indicates that mesenchymal stem cells (MSCs) have the characteristic of migration to tumor site, promote or suppress tumors. How human bone marrow mesenchymal stem cells (BMSCs) contribute to liposarcoma phenotype remains poorly understood. This study aims to investigate the effects of human bone marrow mesenchymal stem cell-conditioned medium (BMSC-CM) on the proliferation and migration of liposarcoma cell lines 93T449 and SW872, as well as explore potential underlying mechanisms of BMSC-CM action on these cells.
Mitofusin 2 inhibits high glucose-induced apoptosis of human lens epithelial cells via modulating mitochondrial function and autophagy
Diabetic cataract (DC) is a common ocular complication of diabetes. Mitofusin 2 (MFN2), a mitochondrial fusion protein, is involved in the pathogenesis of cataract and diabetic complications. However, its role and molecular mechanisms in DC remain unclear.
Periplaneta americana extract attenuates hepatic fibrosis progression by inhibiting collagen synthesis and regulating the TGF-β1/Smad signaling pathway
Liver fibrosis is the damage repair response following chronic liver diseases. Activated hepatic stellate cells (HSCs) are the main extracellular matrix (ECM)-producing cells and key regulators in liver fibrosis. Periplaneta americana shows prominent antifibrotic effects in liver fibrosis; however, the underlying mechanisms remain undetermined. This study aimed to elucidate the therapeutic effects of P. americana extract (PA-B) on liver fibrosis based on the regulation of the TGF-β1/Smad signal pathway.
miRNA-192-5p targets Dyrk1a to attenuate cerebral injury in MCAO mice by suppressing neuronal apoptosis and neuroinflammation
Ischemic stroke (IS) is a leading cause of disability and mortality worldwide. Several studies have demonstrated the involvement of microRNAs (miRNAs) in brain diseases. miRNA-192-5p is a regulatory molecule in neurodegenerative diseases and its expression was found to be significantly downregulated in the whole blood samples of IS patients, but the specific role of miRNA-192-5p in IS not fully understood. Here, we investigated the role of miRNA-192-5p in a murine model of acute cerebral injury after IS.
Dioscin attenuates lupus nephritis in NZB/W F1 mice by decreasing NF-κB activation and NLRP3 inflammasome
Dioscin, a natural steroid saponin, has anticancer, anti-inflammatory, anti-hyperlipidemic, and glycemic capabilities. This study focused on dioscin roles and its related mechanisms in experimental lupus nephritis.
Platelet-rich plasma ameliorates cartilage degradation in rat models of osteoarthritis via the OPG/RANKL/RANK system
Osteoarthritis (OA) is one of the most common degenerative joint diseases in the elderly, which is featured by the degradation of articular cartilage. Recently, platelet-rich plasma (PRP) injection into the affected joint has become one biological therapy for OA treatment. The OPG/RANKL/ RANK signalling has been reported to mediate OA progression. Our study aimed to confirm whether PRP injection retards OA development through the regulation of the OPG/RANKL/RANK system.
Nootkatone mitigates periodontal inflammation and reduces alveolar bone loss via Nrf2/HO-1 and NF-κB pathways in rat model of periodontitis
Periodontitis (PD) is a chronic inflammatory disease leading to alveolar bone loss. This study investigated the effect of nootkatone and regulatory mechanism in reducing periodontal inflammation and alveolar bone loss in a rat model.
Identification of an active fraction of Kangfuxin in the treatment of periodontitis in a rat model
Periodontitis is a serious gum infection that disrupts the soft tissue around teeth. This study aimed to identify the most effective fraction of the Chinese medicine Kangfuxin for periodontitis treatment in a rat model.
Changes in early endosomes in rat hippocampal CA1 neurons after transient global cerebral ischaemia
Transient global ischaemia in rodents causes selective loss of hippocampal CA1neurons, but the potential involvement of endocytic pathways has not been fully explored. The aim of this study was to investigate the changes in early endosomes in the CA1 subfield after ischaemia and reperfusion.
Immunocytochemical localization of nitric oxide synthase-containing neurons in the visual cortex of the Mongolian gerbil
Nitric oxide (NO) is present in various cell types in the central nervous system and plays a crucial role in the control of various cellular functions. The diurnal Mongolian gerbil is a member of the rodent family Muridae that exhibits unique physiological, anatomical, and behavioral differences from the nocturnal rat and mouse, which render it a useful model for studying the visual system. The purpose of this study was to confirm the distribution and morphology of neurons that contain nitric oxide synthase (NOS) and their pattern of co-expressing NOS with neuropeptide Y (NPY), somatostatin (SST), and gamma-aminobutyric acid (GABA) in the visual cortex of Mongolian gerbils.
Diagnostic utility of immunocytochemistry by using liquid-based cytology (LBC) slides
Cytological specimens, such as fine needle aspirations (FNAs) and exfoliative cytology samples, are minimally invasive options for diagnostic purposes. Liquid-based cytology (LBC), originally designed for cervical cytology, has gained prominence as an alternative technique for non-gynecological cytology. Immunocytochemistry (ICC) is an ancillary method used when diagnosis becomes challenging due to morphological overlap or the need for cellular origin clarification. This study aims to assess the diagnostic utility of ICC when applied to LBC slides and evaluate its effectiveness in relation to the waiting (lag) time of residual material.
Digital morphology network for effective teaching of cytology, histology and histopathology for medical and biology curriculum. VM3.0 Erasmus+ project
Digital microscopy transformation, the basis for the virtual microscopy applications, is a challenge but also a requirement in modern Medical Education. This paper presents the scope, background, methods, and results of the project "Digital Transformation of Histology and Histopathology by Virtual Microscopy (VM) for an Innovative Medical School Curriculum", VM3.0, funded by the European Union under the Erasmus+ framework (ref.no.2022-1- RO01-KA220-HED-000089017). The project was initiated at Grigore T. Popa University of Medicine and Pharmacy, Iași, Romania, with the support of Euroed Foundation, Iași, and cooperation of University partners from Gdansk (Poland), Plovdiv (Bulgaria), Alicante (Spain), and Patras (Greece) aimed to implement digital histology and histopathology teaching in a common network.
Correlation between stromal Th and Tc lymphocytes and PD-L1 expression in early breast cancer tumors
Prognostic and predictive value of PD-L1 as a biomarker in breast cancer remains controversial. While some studies suggest its association with negative prognostic parameters, others reported a highly significant association between PD-L1 expression and tumor-infiltrating lymphocytes, which are known to be an independent favorable prognostic factor. The aim of present study is to examine the relationship between immune response markers and PD-L1 expression in early breast cancer.
Diosmetin ameliorates osteoarthritic inflammation in vivo and ECM macromolecules degradation in interleukin-1β-stimulated murine chondrocytes through the Nrf2/NF-κB pathway
Osteoarthritis (OA) is a prevailing degenerative disease in elderly population and can lead to severe joint dysfunction. Studies have revealed various pharmacological activities of diosmetin, including the anti-OA efficacy. The present study further investigated its effect on interleukin (IL)-1β-induced OA in chondrocytes.
Therapeutic effect of autophagy induced by rapamycin versus intermittent fasting in animal model of fatty liver
High-fructose, high-fat diet consumption (HFHF) is one of the primary causes of non-alcoholic fatt liver disease (NAFLD), which is due to impaired beta-oxidation or apolipoprotein secretion by hepatocytes. Activation of autophagy in hepatocytes could be a therapeutic method against hepatic complications. This study was designed to compare effects of rapamycin and intermittent fasting-inducing autophagy in rats with experimentally induced nonalcoholic fatty liver.
Simvastatin suppresses ethanol effects on the kidney of adolescent mice
Adolescents tend to experiment with ethanol which often results in heavy episodic drinking patterns leading to serious health concerns later in life. Chronic ethanol use damages renal tissue, promotes collagen deposition, and induces renal inflammation, thereby causing renal dysfunction. Therefore, an intervention such as simvastatin (a blood cholesterol-lowering drug) that could suppress the effects of ethanol on the kidney may be beneficial. This study explored the impact of simvastatin against the onset of renal morphological damage, fibrosis, and inflammation caused by ethanol exposure in mice.