炎症
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Cell子刊:西湖大学胡小玉团队揭示细胞因子风暴发病新机制,并提出潜在治疗靶点
生物世界· 2026-01-01 01:21
Core Viewpoint - The article discusses the discovery of a hyper-translation pathway in monocytes/macrophages that drives cytokine release syndrome (CRS), suggesting that targeting this pathway could be a potential therapeutic strategy for CRS [2][10]. Group 1: Overview of Cytokine Release Syndrome (CRS) - Cytokine release syndrome (CRS), also known as cytokine storm, is a potentially life-threatening inflammatory condition often triggered by infections or immunotherapy [5]. - It is estimated that 50%-90% of patients receiving CAR-T cell therapy experience CRS, with clinical manifestations ranging from mild fever to life-threatening multi-organ failure [5][11]. - The core of CRS pathogenesis lies in the excessive production of pro-inflammatory cytokines, particularly interleukin-6 (IL-6) [5]. Group 2: Mechanisms and Research Findings - The study published in Cell Reports Medicine identifies monocyte/macrophage hyper-translation as a significant feature of CRS pathogenesis [9][11]. - The research team discovered that BCAP is a key regulatory factor for hyper-translation, activating the RSK-EIF4B signaling axis, which leads to excessive translation in macrophages [9][13]. - Genetic deletion of RSK alleviated CRS-related inflammation, and pharmacological inhibition of RSK reduced CRS symptoms in humanized mouse models [9][10]. Group 3: Implications for Treatment - The findings establish hyper-translation as a critical pathogenic feature of CRS and highlight protein translation as a potential druggable target for therapeutic intervention in CRS and other inflammatory diseases [10][13].
Cell子刊:谢青/谢岑合作揭示识别脂肪肝患者显著纤维化和炎症的血液代谢组学检测指标
生物世界· 2025-12-27 04:09
Core Insights - The article discusses the increasing global health issue of Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD), previously known as Non-Alcoholic Fatty Liver Disease (NAFLD), highlighting its progression to Metabolic Dysfunction-Associated Steatohepatitis (MASH) and the associated risks of morbidity and mortality [1][4]. Group 1: Research Findings - A recent study published in Cell Reports Medicine identified blood metabolic panels that can detect significant fibrosis and inflammation in MASLD patients, revealing key metabolites such as Guanidinoacetic Acid (GAA) and Decanoic Acid (SA) that show therapeutic potential in mouse models [2][5]. - The research involved 293 participants across three independent cohorts, utilizing machine learning techniques to develop a non-invasive diagnostic model for detecting significant fibrosis (≥F2) and moderate to severe inflammation (≥I2) [4]. - The area under the receiver operating characteristic curve (AUROC) for fibrosis detection reached 0.928, 0.829, and 0.806 in the discovery, validation cohort 1, and validation cohort 2, respectively, outperforming existing indices like FIB-4 and APRI [4]. Group 2: Implications for Diagnosis and Treatment - The study's findings provide a systematic exploration of the key metabolic features of MASLD, paving the way for new non-invasive diagnostic and treatment strategies [7]. - The identified metabolites GAA and SA can improve liver fat deposition, inflammation, and fibrosis through dual mechanisms of "regulating lipid metabolism" and "promoting inflammation resolution," indicating their potential in advancing MASLD management [5].
曹雪涛院士出任主编,免疫与炎症期刊Immunity & Inflammation首期上线
生物世界· 2025-09-05 04:00
Core Viewpoint - The article announces the launch of the open-access journal "Immunity & Inflammation," focusing on significant scientific issues and advancements in the fields of immunology and inflammation [2][4]. Group 1: Journal Overview - "Immunity & Inflammation" is co-edited by prominent figures in immunology, including Nobel laureates and leading researchers from various countries [2][5]. - The journal aims to bridge foundational insights with medical innovations, publishing high-quality original research, reviews, and highlights across basic, translational, and clinical research [6]. Group 2: Research Focus - The journal particularly welcomes studies exploring the dual nature of inflammation, inflammation-driven diseases, novel anti-inflammatory interventions, and groundbreaking findings in immune regulation [6]. - It encourages interdisciplinary research, including the use of artificial intelligence and digital health technologies, and aims to establish new standards in relevant research and practice areas [6]. Group 3: Editorial Commitment - The journal is committed to maintaining the highest standards of scientific ethics, integrity, transparency, and reproducibility [6][7]. - It invites global scientific communities to collaborate and contribute to making "Immunity & Inflammation" a vibrant and impactful academic platform [7].
我国学者研究发现:奶茶等高果糖饮食会加重炎症,而降糖药二甲双胍可逆转
生物世界· 2025-08-27 04:13
Core Viewpoint - The article discusses the increasing consumption of fructose and its potential health risks, particularly its role in aggravating inflammation and its association with various diseases, including cancer and metabolic disorders [2][3][4]. Group 1: Fructose Consumption and Health Risks - Fructose is a monosaccharide that has been widely used as a sweetener in beverages and processed foods, leading to a significant increase in its consumption over the past 50 years [2]. - Excessive intake of fructose is linked to various health issues, including high blood sugar, obesity, type 2 diabetes, fatty liver, cardiovascular diseases, and an increased risk of certain cancers such as colorectal, pancreatic, ovarian, and liver cancer [2][3]. - Recent studies indicate that high fructose consumption may also be associated with anxiety disorders, particularly among adolescents [2]. Group 2: Immune System Impact - The impact of fructose on the immune system, particularly its role in regulating acquired immunity and T cell immunity, has not been sufficiently studied [3][6]. - A recent study found that high fructose intake promotes the generation of effector T cells (Th1 and Th17), exacerbating inflammation and potentially worsening inflammatory bowel disease (IBD) [4][7]. - The study suggests that the common antidiabetic drug metformin can reverse the effects of high fructose intake by inhibiting mTORC1 activation and reducing reactive oxygen species (ROS) mediated TGF-β activation, thus alleviating T cell inflammation and colitis [4][9]. Group 3: Mechanisms of Fructose-Induced Inflammation - High fructose intake enhances the differentiation of Th1 and Th17 cells through a glutamine metabolism-dependent pathway that activates mTORC1, contributing to the progression of IBD [7]. - The study highlights that fructose can directly mediate immune responses and disrupt immune homeostasis, leading to increased inflammation [9]. Group 4: Fructose and Cancer Growth - Additional research indicates that fructose may indirectly promote tumor growth by enhancing lipid transfer between organs, providing cancer cells with the necessary lipids for rapid proliferation [13]. - Another study reveals that fructose inhibits the polarization of M1-like tumor-associated macrophages, promoting the development of colorectal cancer through mechanisms that do not rely on its downstream metabolites [15].
Nature子刊:刘光慧团队等揭示细胞衰老介导肺结核后遗症的分子机制,并提出潜在干预靶点
生物世界· 2025-07-15 03:31
Core Insights - The article discusses a significant research study published in Nature Microbiology, which reveals the mechanisms behind lung damage in patients with a history of Mycobacterium tuberculosis infection [2][7]. Group 1: Research Findings - The research team constructed the first high-precision cellular molecular network of lung tissue post-tuberculosis infection, identifying cellular senescence and inflammation as key pathological features of lung damage [2][6]. - A total of 19 post-tuberculosis lung tissue samples and 13 matched normal lung samples were analyzed using single-cell transcriptomics, focusing on the lesions and surrounding areas [5]. - The study identified molecular characteristics associated with tuberculosis, including gene expression patterns related to senescence, inflammation, fibrosis, and apoptosis [6]. Group 2: Mechanisms and Implications - The research highlighted that exacerbated vascular inflammation is a critical feature of lung tissue following tuberculosis [6]. - The team discovered that silencing FOXO3 and treating with thrombin exacerbated endothelial cell senescence and inflammation, confirming the role of FOXO3 signaling and NF-κB-dependent thrombo-inflammatory processes [6]. - These findings provide new insights into the mechanisms of tuberculosis-related lung damage and suggest potential therapeutic targets to alleviate lung injury in affected patients [7].
空气污染的健康影响:一般概述
WHO· 2025-03-20 06:44
Investment Rating - The report does not provide a specific investment rating for the industry. Core Insights - The report emphasizes the significant negative health impacts of air pollution, detailing how pollutants enter the human body and affect various organs, leading to both short-term and long-term health consequences [5][6][29]. - It highlights the importance of understanding the epidemiological and toxicological evidence surrounding air pollution and its health effects, which is crucial for developing effective public health strategies [11][88][98]. Summary by Sections Section 1: Adverse Health Effects of Air Pollution - Air pollution has been linked to various health issues, including acute and chronic diseases, with epidemiological studies providing strong evidence of its impact on mortality rates [15][16][25]. - The definition of adverse health effects has evolved to include not only respiratory outcomes but also cardiovascular diseases and other systemic impacts [22][25][26]. Section 2: From Exposure to Disease - The report discusses the continuum between exposure to air pollution and the onset of health issues, emphasizing that there is no threshold below which no negative effects are observed [41][46]. - It outlines the pathways through which pollutants enter the body, primarily through inhalation, and the factors influencing the dose received [50][54]. Section 3: Building Scientific Evidence - Epidemiological studies are categorized into cohort studies for long-term exposure and time-series analyses for short-term exposure, both of which have been instrumental in linking air pollution to health outcomes [87][89]. - Toxicological studies are highlighted as essential for understanding the physiological effects of pollutants, allowing for the assessment of individual and combined effects of various air contaminants [98][100].