基因编辑

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同济大学最新Science论文:cGAS的这种突变,可延缓衰老、延长寿命
生物世界· 2025-10-10 04:05
撰文丨王聪 编辑丨王多鱼 排版丨水成文 裸鼹鼠 ( Heterocephalus glaber ) 是一种寿命极长的啮齿类动物,其 寿命可达 30-40 年,是同体型啮齿动物 (例如小鼠) 寿命的 10 倍以上。 一直以来, 裸鼹鼠 因为其 长寿 和 抵抗衰老相关疾病 (包括 癌症 、 心血管疾病 、 神经退行性疾病 ) 的强大能力而备受科学界关注。 尽管人们认为其超长寿 命是由影响多种生物过程的多种适应性变化共同作用的结果,但保护裸鼹鼠免受基因组不稳定 (衰老的主要标志) 影响的分子机制,目前仍不清楚。 DNA 修复 是维持基因组稳定的关键机制。早在 2018 年,同济大学 戈宝学 、 毛志勇 合作团队在 Nature 期刊发表论文,发现在人类细胞中,DNA 传感器 cGAS 通过抑制同源重组 (HR) 途径参与调控 DNA 双链断裂的修复,从而 促进基因组不稳定 。尽管 DNA 修复蛋白功能的增强有助于长寿的进化,但进化是 否选择减弱诸如 cGAS 这样的负调控因子,仍不得而知。 裸鼹鼠 在这项发表于 Science 期刊的最新研究中,研究团队发现,与人类及小鼠的 cGAS 相比, 裸鼹鼠的 cGAS 增 ...
研判2025!中国镰状细胞病治疗行业产业链、市场规模及重点企业分析:行业迈入基因编辑驱动根治时代,治疗迎来技术突破窗口期[图]
Chan Ye Xin Xi Wang· 2025-10-10 01:27
相关上市企业:恒瑞医药(600276)、亚盛医药(06855)、药明康德(603259) 内容概况:中国镰状细胞病治疗行业正处于从"对症治疗"向"根治性治疗"转型的关键阶段。该病作为常 染色体隐性遗传病,主要流行于南方省份。当前治疗手段涵盖药物、输血、造血干细胞移植及基因治疗 四大方向,其中基因编辑技术突破正推动行业从"对症治疗"向"根治性治疗"转型。2024年,中国镰状细 胞病治疗行业市场规模约为42.87亿元,同比增长66.03%。 相关企业:中源协和细胞基因工程股份有限公司、深圳泽医细胞治疗集团有限公司、亿胜生物科技有限 公司、湖北艾普蒂生物工程有限公司、江苏恒瑞医药股份有限公司、澳斯康生物(南通)股份有限公 司、依科赛生物科技(上海)有限公司、山东鲁抗医药股份有限公司、华大基因股份有限公司、和元生 物技术(上海)股份有限公司、锐正基因(苏州)有限公司、上海东富龙科技股份有限公司 关键词:镰状细胞病治疗、镰状细胞病治疗市场规模、镰状细胞病治疗行业现状、镰状细胞病治疗发展 趋势 一、行业概述 镰状细胞病是一种由血红蛋白β-珠蛋白基因突变引起的常染色体隐性遗传病,其核心病理特征为异常血 红蛋白(HbS)在低 ...
建设世界一流脐带血干细胞公共资源实体库:北京市脐带血库二十三年的光荣与梦想
Sou Hu Wang· 2025-10-09 02:22
【筚路蓝缕二十三载,今天,我国首家脐带血库——北京市脐带血造血干细胞库迎来23岁生日。这不仅 是佳宸弘生物(北京市脐带血库运营方)的重要里程碑,更是脐带血生命科学和医疗事业发展的一个缩 影。 二十三载春秋,作为北京地区唯一具有法定开展脐带血采集、制备、检测、冻存、选择、运输和发放等 资质的国家特殊血站,北京市脐带血库坚持走中国特色卫生与健康发展道路,从零起步,将守护精神从 概念变为现实,努力建设世界一流脐带血干细胞公共资源实体库,在公共卫生应急管理体系中持续发挥 作用,向着更具使命的未来加速奔跑。】 北京一家医院的诊室里,王芳盯着眼前的确诊单,不敢相信地问医生:"大夫,嘉嘉真得了这种病?"医 生点点头,让她再次确认孩子得的就是可怕的"白血病"。王芳的眼泪夺眶而出。 当医生得知王芳的大宝欢欢的脐带血保存在北京市脐带血库后,结合孩子的病情,为他制定了用哥哥脐 带血辅助其父亲单倍体异基因造血干细胞移植的方案。哥哥这份沉睡了16年的脐带血就像一位"穿越时 空"的使者,顺利植入弟弟体内并使之恢复了正常的造血。王芳感叹:"真没想到,16年前一个并不经意 的决定,竟成为如今挽救孩子的关键!" 阿源是一个聪明活泼的男孩儿,不 ...
2025年中国临床前CRO行业进入壁垒、市场政策、产业链图谱、市场规模、竞争格局及发展趋势分析:本土企业在国内市场竞争优势显著[图]
Chan Ye Xin Xi Wang· 2025-10-09 02:17
内容概要:随着全球人口老龄化日益加剧,心血管疾病、糖尿病、癌症等慢性病患病率持续上升,对各 类治疗药物的需求不断增加,此外,随着人们保健意识的不断提高,对健康和医疗保健的重视程度不断 提升,对高品质生物医药产品的需求也在不断增长,近年来,全球医药研发支出也在持续增长,新药研 发项目数量增多,带动CRO市场需求快速增长,据统计,2024年全球CRO市场规模达900.3亿美元,其 中,临床前CRO市场规模274.6亿美元,占全球CRO市场整体规模的30.5%。 相关上市企业:药明康德(02359.HK)、百英生物(874387.NQ)、百奥赛图(02315.HK)、维亚生 物(01873.HK)、金斯瑞生物科技(01548.HK)、方达控股(01521.HK)、成都先导(688222)、美 迪西(688202)、泓博医药(301230)、睿智医药(300149)、益诺思(688710)、南模生物 (688265)、药康生物(688046)、昭衍新药(603127)、康龙化成(300759) 相关企业:桑迪亚医药技术(上海)有限责任公司、北京赛赋医药研究院有限公司、成都华西海圻医药 科技有限公司、澎立生物医药技术( ...
这种罕见病让10岁儿童迅速衰老到80岁,被迫加速的人生有怎样的遗憾和感悟
3 6 Ke· 2025-10-08 23:59
山姆和他的父母(图片来源:纪录片《拯救山姆》) 1996年,山姆·伯恩斯(Sam Berns)出生在美国罗德岛州的一家医院。起初,他像其他婴儿一样健康可爱,但几个月后,奇怪的事情发生了。 山姆的皮肤开始愈发紧绷,以至于显出了静脉的轮廓。他的体重鲜有增加,身形削瘦。再往后,山姆甚至开始掉头发,就像人到了中年那样。医生从没见 过这种情况,只能将其归咎于遗传——他的父母长得都不算高大。 山姆的母亲莱斯利是一位生物学家,父亲斯科特是一名儿科医师,因此,他们身边不乏医护从业者。一次,斯科特邀请同事来家里吃晚饭。这名同事看到 山姆,脑海中立刻浮现出一个曾在课本上看过的病例:早年衰老综合征。 听从同事的建议,斯科特和莱斯利带儿子进行了细致的筛查,很快便得到确诊。 早衰症患者在2岁内会表现出典型的外貌特征(图片来源:docquity) 早年衰老综合症,简称早老症,患者出生时一般并无异常,但在2岁以内会忽然加速衰老。等长到10岁左右时,他们的外貌看起来就像七八十岁一样:身 材矮小干瘪,没有头发,皮肤布满皱纹,血管突出地暴露在皮肤表面,关节和骨骼也非常脆弱。 与衰老相伴的是锐减的寿命,早老症患者的平均寿命为14.5岁。 如今,人 ...
研判2025!中国基因编辑行业发展历程、产业链及市场规模分析:行业高速发展,技术前沿性凸显[图]
Chan Ye Xin Xi Wang· 2025-10-07 01:15
内容概况:近年来,中国基因编辑行业呈现出快速发展的态势。2024年,中国基因编辑行业市场规模约 为27.41亿元,同比增长33.19%。基因编辑技术作为生命科学领域的前沿技术,其应用前景广阔。在医 疗领域,基因编辑技术可用于治疗遗传性疾病和癌症等疑难杂症。在农业领域,基因编辑技术可用于培 育抗病虫害、高产优质的农作物新品种,提高农业生产效率和农产品质量。 相关上市企业:华大基因(300676)、贝瑞基因(000710)、三元基因(837344)、吉玛基因 (430601) 中国基因编辑行业发展历程 相关企业:珠海贝斯昂科生物科技有限公司、金斯瑞生物科技股份有限公司、武汉滨会生物科技股份有 限公司、上海邦耀生物科技有限公司、广州瑞风生物科技有限公司、正序生物科技有限公司、舜丰生物 科技有限公司、齐禾生科生物科技有限公司、凯赛生物科技股份有限公司、华恒生物科技股份有限公司 关键词:基因编辑、基因编辑市场规模、基因编辑行业现状、基因编辑发展趋势 一、行业概述 基因编辑是一种对生物体基因组进行精确修改的技术。它通过使用特定的核酸酶(如锌指核酸酶、转录 激活因子样效应子核酸酶等)或CRISPR-Cas系统等工具,能够像 ...
【锋行链盟】纳斯达克上市公司市值管理核心要点
Sou Hu Cai Jing· 2025-10-01 16:11
Core Insights - Nasdaq serves as a crucial financing platform for global technology companies, focusing on a closed-loop system of "value creation - value communication - value realization" in its market capitalization management [2] Group 1: Value Creation - The long-term anchor of market capitalization is the intrinsic value of the company, with Nasdaq emphasizing growth potential, profit quality, and sustainability as the foundation for value creation [2] - Key factors for business growth and market competitiveness include innovation capability, technological barriers, and ESG (Environmental, Social, and Governance) considerations [3] Group 2: Investor Relations Management - Efficient investor relations (IR) management is critical for value communication, with institutional investors making up over 70% of Nasdaq's investor base [3] - A layered communication strategy is necessary to address market misunderstandings and short-selling, including a rapid response mechanism for negative news [3][4] - Regular roadshows and clear communication of financial models and business catalysts are essential for engaging institutional investors [4] Group 3: Liquidity Management and Capital Operations - High liquidity in Nasdaq is a significant support for market capitalization, requiring companies to balance shareholder returns with long-term development through capital operations [5] - Strategies include maintaining stock liquidity, shareholder return policies, and strategic mergers and acquisitions [5][6] Group 4: Compliance and Transparency - Strict regulatory frameworks, such as the Sarbanes-Oxley Act and SEC rules, are fundamental to maintaining market capitalization, with violations leading to severe consequences [6] - Companies must ensure accurate financial disclosures, governance structures, and compliance with regulations to avoid risks [6][7] Group 5: Dynamic Market Monitoring - Market capitalization is influenced by macroeconomic conditions, industry cycles, and unexpected events, necessitating real-time monitoring and strategy adjustments [7] - Companies should track key valuation metrics and prepare for various macro scenarios to manage market fluctuations effectively [8]
基因编辑进入“大规模重排时代”,桥重组酶:改写生命天书的“神笔”
Ke Ji Ri Bao· 2025-09-30 07:55
Core Insights - A revolutionary shift in gene editing technology is occurring, moving from simple corrections to comprehensive genomic restructuring, as demonstrated by the latest breakthroughs from the Arc Institute [1][2][3] Gene Editing Evolution - Traditional gene editing tools like CRISPR-Cas9 have been effective for precise corrections but struggle with complex diseases caused by large genomic rearrangements [2][3] - The limitations of existing technologies include their inability to efficiently handle large segments of DNA and the potential for off-target effects and safety risks [3] New Technology: Bridge Recombinase - The newly developed bridge recombinase technology allows for programmable insertions, deletions, and flips of genomic regions up to millions of base pairs, enabling large-scale genomic rearrangements [3][4] - This technology utilizes bridge RNA, which can simultaneously bind to two different DNA sites, facilitating complex genomic operations that were previously challenging with CRISPR [4] Clinical Applications and Potential - Initial experiments using bridge recombinase show promise in treating Friedrich's ataxia by successfully removing over 80% of the expanded GAA sequence responsible for the disease [5] - The technology simplifies the delivery process by requiring only RNA, reducing treatment complexity and risk, and has demonstrated broad applicability in existing therapies for conditions like sickle cell anemia [5] Future Prospects - The bridge recombinase technology holds potential for treating various genetic disorders, cancers, and applications in synthetic biology and agriculture [6] - Ongoing efforts are focused on applying this technology to stem cells and immune cells to develop more powerful variants for larger genomic segments [6]
趋势研判!2025年中国化疗药物行业全景速览:随着癌症患者人数不断增多,市场对化疗药物的需求持续增长,国内企业不断上市,市场竞争加剧[图]
Chan Ye Xin Xi Wang· 2025-09-28 01:32
内容概要:化疗药物是抗癌药的一种,是现阶段治疗肿瘤的重要方法之一。近年来我国癌症患者人数不 断增多,随着国民消费能力提升,市场对化疗药物的需求持续增长。虽然近年来受靶向类等药物的冲击 下,我国化疗药物市场规模有所波动,但由于化学药物的治疗效果稳定、广谱的抗癌性及相对较低的价 格等优势,其在我国抗肿瘤药物市场中仍占据主导地位。随着国内企业技术水平的提升,进入化疗药物 的企业增长,国内化疗药物产量还将继续增长。2024年,我国化疗药物行业需求量达到了38.58亿片/粒/ 瓶,市场规模1355.9亿元,其中,植物生物碱603.2亿元与抗代谢药440.3亿元主导市场。预计2025年, 我国化疗药物产量将达到34.32亿片/粒/瓶,需求量将达39.48亿片/粒/支/瓶,市场规模1404.2亿元,其 中,抗代谢药457.5亿元,植物生物碱规模626亿元。 上市企业:恒瑞医药(600276)、双鹭药业(002038)、汇宇制药(688553)、科伦药业(002422)、扬子江药业 (600854)、翰森制药(03692.HK) 相关企业:默沙东、江苏天士力帝益药业、北京双鹭药业、苏州特瑞药业、大冢制药、Acrotech、西 ...
自带导航,主动敲门,CRISPR有了新型“快递车”
Ke Ji Ri Bao· 2025-09-23 08:52
Core Insights - CRISPR technology represents a revolutionary gene-editing method that offers unprecedented hope for treating genetic disorders, cancer, and rare diseases by precisely modifying disease-causing genes [1] - A significant breakthrough has been achieved by a team from Northwestern University, which has developed a new delivery system for CRISPR tools, enhancing efficiency and safety in gene therapy applications [1][3] Delivery Mechanisms - Current methods for delivering CRISPR into cells primarily rely on modified viruses and lipid nanoparticles (LNPs), each with distinct limitations [2] - Modified viruses are efficient at entering cells but pose safety risks due to immune responses and limited cargo capacity [2] - LNPs are safer but have low delivery efficiency, often getting trapped in cellular compartments, which hinders the effectiveness of gene tools [2] New Delivery System - The new system, termed "Lipid Nanoparticle Spherical Nucleic Acids" (LNP-SNA), features a special DNA shell that enhances visibility and acceptance by cells, significantly improving delivery efficiency [3] - This innovative delivery vehicle has been shown to enter cells over three times more efficiently than traditional lipid particles, with reduced toxicity and a threefold increase in successful gene editing probability [3] - The accuracy of gene repair has improved by over 60%, which is crucial for minimizing health risks associated with erroneous edits [3] Versatility and Future Applications - The LNP-SNA technology is modular, allowing for tailored delivery to specific cell types, such as liver, brain, or cancer cells, enhancing precision in treatment [4] - This new system has demonstrated excellent delivery results across various human cell types, including skin, immune, kidney, and bone marrow stem cells [4] - Seven drugs based on similar spherical nucleic acid technology are currently in human clinical trials, with some targeting cancer treatment [4] - The advancement in delivery mechanisms is critical for the future of gene editing therapies, potentially enabling the treatment of previously untreatable diseases [4]