异种移植
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中国团队领衔将基因编辑猪肺成功移植人体 存活9天并发挥功能
Zhong Guo Xin Wen Wang· 2025-08-26 06:43
Core Insights - A research paper published in the journal Nature Medicine indicates that a genetically engineered pig lung can survive for 9 days and function after being transplanted into a human patient diagnosed with brain death, marking a potential breakthrough in cross-species lung transplantation [1][2] - The study highlights the challenges of lung transplantation due to its anatomical and physiological complexities compared to other solid organ transplants, but suggests that xenotransplantation could address the shortage of human transplant organs [1] Group 1 - The research team, led by Professor He Jianxing from Guangzhou Medical University, successfully transplanted the left lung of a genetically edited pig into a 39-year-old human patient [1] - The donor pig underwent CRISPR gene editing to remove antigens that could activate the human immune system, resulting in the transplanted lung not experiencing immediate rejection [2] - Despite the initial success, signs of lung injury were observed 24 hours post-transplant, with antibody-mediated rejection noted on days 3 and 6, indicating the need for further research [2] Group 2 - The study concludes that while this represents a significant first step in pig lung transplantation into humans, further improvements are necessary in genetic modifications of donor pigs and the development of immunosuppressive drugs to prevent rejection and maintain long-term lung function [2]
Nature Medicine:世界首例!我国学者成功将基因编辑猪肺移植到人体内
生物世界· 2025-08-26 00:00
Core Viewpoint - The article discusses significant advancements in xenotransplantation, particularly focusing on the successful transplantation of genetically edited pig organs into human patients, highlighting the potential to alleviate organ shortages in humans [3][4][5]. Summary by Sections Breakthroughs in Xenotransplantation - In October 2021, NYU Langone Medical Center performed the first transplantation of a genetically edited pig kidney into a brain-dead woman [3]. - In January 2022, the University of Maryland conducted the first live transplantation of a genetically edited pig heart, with the patient surviving for approximately two months [3]. Recent Research on Pig Lung Transplantation - In March 2025, a team from Xijing Hospital published a paper in Nature, reporting the first successful transplantation of a genetically edited pig liver into a brain-dead patient, with the organ functioning for 10 days [4]. - In August 2025, a study published in Nature Medicine documented the world's first successful transplantation of a genetically edited pig lung into a brain-dead human, with the lung surviving for 9 days and functioning properly [5][4]. Genetic Modifications and Challenges - The pig lung used in the transplantation was genetically modified by deleting three "dangerous" genes (GTKO, CMAH, B4GALNT2) and adding three protective human genes (hCD46, hCD55, hTBM) to mitigate immune rejection [7][9]. - During a 216-hour monitoring period, the transplanted pig lung maintained vitality and function without signs of hyperacute rejection or infection, although complications such as severe edema and antibody-mediated rejection were observed [9][10]. Future Directions and Considerations - The study indicates that further genetic modifications may be necessary to improve outcomes, particularly in addressing coagulation disorders and enhancing graft survival [11][12]. - The complexity of lung transplantation poses greater challenges compared to other organs, necessitating ongoing preclinical research to overcome these barriers [12]. China's Leadership in Xenotransplantation - Chinese scientists are at the forefront of xenotransplantation research, having completed the world's first human transplant of genetically edited pig liver and lung, as well as a kidney transplant with a patient surviving for nearly six months [12].
Nature Medicine:我国学者解析猪肝脏异种移植后人类患者的免疫细胞改变
生物世界· 2025-07-31 00:00
Core Insights - Recent breakthroughs in xenotransplantation using genetically modified pigs have garnered global attention, particularly in addressing the shortage of human organ donors [1][2] - The first successful transplantation of a genetically edited pig liver into a human recipient was reported in March 2024, demonstrating the potential for pig organs to serve as a transitional therapy for patients with liver failure [1][2] Group 1: Research Developments - In October 2021, NYU Langone Medical Center performed the first transplantation of a genetically edited pig kidney into a brain-dead woman [1] - In January 2022, the University of Maryland conducted the first live transplantation of a genetically edited pig heart, with the patient surviving for approximately two months [1] - A study published in Nature Medicine in July 2025 analyzed the immune cell landscape in a human recipient of a pig liver xenograft, highlighting the immune response post-transplantation [2][3] Group 2: Immune Response Analysis - The research utilized single-cell and spatial transcriptomics to characterize immune cell changes in the peripheral blood and transplanted liver of the human patient [3][7] - The study found that T cells in the peripheral blood were gradually activated, while γδT cells and exhausted T cells infiltrated the pig liver, indicating impaired adaptive immunity [8] - Two distinct monocyte subpopulations, THBS1+ and C1QC+, were identified, which may influence coagulation and immune responses post-xenotransplantation [9][11] Group 3: Implications for Future Research - The findings emphasize the role of innate immune cells in influencing coagulation and immune pathways following pig liver xenotransplantation, suggesting avenues for further research [11] - Understanding the roles of THBS1+ and C1QC+ monocytes could provide insights into early rejection responses and adaptive immune regulation in xenotransplantation [11]
聚焦前沿领域产学研协同 昆山探寻人类健康的“未来方案”
Xin Hua Cai Jing· 2025-07-28 13:45
Core Insights - The Second Lake District Life and Health Scientist Conference was held in Kunshan, Jiangsu, attracting over 200 top scientists, clinical experts, entrepreneurs, and investors to explore future solutions for human health [1][2] Industry Overview - The biopharmaceutical sector is identified as the primary industry in Suzhou, with Kunshan accelerating the construction of an innovative industrial cluster [1] - As of May 2023, Kunshan has over 230 biopharmaceutical-related enterprises [1] Strategic Development - The town of Dushan Lake is leveraging its strategic location within the Yangtze River Delta integration plan, being only 30 minutes from Hongqiao Hub, and its ecological resources with a 14-kilometer golden lakeshore [1] - Dushan Lake is focusing on cutting-edge life sciences technologies to establish a new framework for scientific innovation in the region [1] Conference Highlights - The conference featured presentations from leading experts on topics such as the relationship between inflammatory microenvironments and tissue regeneration, brain-computer interfaces, and the disruptive applications of artificial intelligence in drug screening and antibody drug development [2] - Discussions also included ethical norms and clinical pathways related to xenotransplantation [2] Research and Innovation - Since the establishment of the Extraordinary Life Science Industry Innovation Center in 2022, over 30 projects have been attracted to Dushan Lake, showcasing the "Lake District Effect" in the life and health industry [3] - The Kunshan LingSi Life Health Innovation Research Institute has formed an innovative team of over 50 young scientists, creating a mentorship model of "academicians leading, youth following" [3] Collaborative Efforts - Dushan Lake is collaborating with the Shanghai Modern Service Industry Association's Medical Service Committee and scientific teams to drive the industrialization of medical research achievements [3] - The unveiling of the "Fudan University Experimental Animal Center Kunshan Branch" marks another achievement in the collaborative development between Shanghai and Kunshan [4] Resource Utilization - The Kunshan branch will utilize Fudan University's leading international animal experiment resources and innovation standards to enhance the support for high-precision fields such as pharmacology, cell biology, and molecular biology [4] - The Extraordinary Life Science Industry Innovation Center aims to gather over 1,000 R&D talents within the next decade, with more than 100 biopharmaceutical scientists already in residence [4]
7.3犀牛财经早报:ETF总规模突破4万亿元大关 11只超长期特别国债定档
Xi Niu Cai Jing· 2025-07-03 01:41
Group 1: ETF Market Overview - The total scale of ETFs surpassed 4 trillion yuan, reaching 4.31 trillion yuan, a year-on-year increase of 15.57% [1] - Bond ETFs experienced the largest growth, increasing by 120.71% to 383.976 billion yuan [1] - Broad-based ETFs accounted for half of the total ETF scale, with a current size of 2.23 trillion yuan, reflecting a 2% increase [1] - Eighteen ETFs saw their scale grow by over 10 billion yuan, with seven being stock ETFs, primarily in broad-based and thematic sectors [1] - 华夏基金 led the market with an increase of 93.17 billion yuan, managing a total of 751.336 billion yuan in ETFs [1] Group 2: Fund Distributions - Over a thousand funds have distributed dividends this year, totaling over 120 billion yuan, a 38% increase year-on-year [1] - The 华泰柏瑞沪深300ETF set a record with a single distribution of 8.394 billion yuan, the highest in domestic ETF history [1] Group 3: Special Bonds and Debt Issuance - The issuance of special bonds is expected to accelerate in the second half of the year, enhancing investment and growth stability [2] - The Ministry of Finance announced the issuance of 11 ultra-long special government bonds in the third quarter, with some issuance dates moved forward [2] Group 4: Industry Capacity Reduction - Various industries, including steel and photovoltaics, have initiated capacity reduction measures in response to "involution" competition [3] - The central government emphasized the need for orderly exit of backward production capacity, leading to a wave of industry adjustments [3] Group 5: Natural Gas Processing Facility - China's first full-chain deep cold processing plant for natural gas has commenced operations, capable of processing 2 billion cubic meters annually [3] Group 6: Corporate Developments - 河北资产管理股份有限公司 has submitted an application for an IPO in Hong Kong, marking a significant step for local asset management companies [5] - 立讯精密 is planning to issue H-shares and list on the Hong Kong Stock Exchange to enhance its global strategy and financing capabilities [5] - 天赐材料's subsidiary has filed a lawsuit for commercial secret infringement, with expected economic losses of 8.87 billion yuan [6] - 瑞康医药's board member has been placed under detention, but the company's operations remain unaffected [7] - 棒杰股份 reported overdue loans totaling 9.67 billion yuan in its photovoltaic segment, representing 322.51% of its audited net assets for 2024 [8]
免疫细胞攻击移植猪肾“作战图”绘成
Ke Ji Ri Bao· 2025-07-03 01:10
Group 1 - The research team has developed a detailed "molecular battle map" of human immune cells responding to transplanted pig kidney tissues, marking a significant breakthrough in overcoming xenotransplantation immune rejection issues [1][2] - The study reveals that signs of antibody-mediated rejection can be detected as early as day 10 post-transplant, peaking at day 33, confirming the understanding that rejection reactions are aggressive yet progress slowly [1] - A dynamic tracking period of 61 days allowed the identification of a critical "treatment time window," and targeted therapeutic interventions have shown significant effects in suppressing immune attacks [1][2] Group 2 - By understanding specific immune interactions at the molecular level, the research enables the formulation of precise anti-rejection strategies, potentially increasing transplant survival rates [2] - The findings provide a roadmap for optimizing genetically edited pigs and developing new anti-rejection drugs, with genetically modified pig kidneys expected to enter clinical routine applications within ten years, pending regulatory approval [2] - The research identifies key intervention time windows, laying a solid foundation for developing more effective anti-rejection therapies and guiding future research directions [2]
“新”丝路架国际医桥:2025中德胸外科专家国际交流沙龙成功举办
Yang Zi Wan Bao Wang· 2025-05-09 13:38
Core Insights - The "New Silk Road" International Thoracic Surgery Exchange Salon was successfully held in Nanjing, focusing on advancements in thoracic surgery and the importance of international collaboration in the field [1][19]. Group 1: Event Overview - The event was hosted by Jiangsu Provincial People's Hospital and featured seven leading thoracic surgery experts from Germany, including Professor Thorsten Walles and Professor Martin Eichhorn [1]. - The salon included comprehensive discussions on hot topics, treatment advancements, and technological innovations in thoracic surgery [1]. Group 2: Key Presentations - Professor Chen Liang presented on "Conical Resection for Deep Early Lung Cancer," discussing surgical indications, operational key points, and postoperative complication prevention [8]. - Professor Wu Weibing addressed "Neoadjuvant Chemotherapy and Immunotherapy for Locally Advanced Central Lung Cancer," highlighting revolutionary opportunities for individualized treatment strategies [8]. - Professor Zhu Quan discussed the "Fissure-type Lung Segment Resection," detailing its technical points and clinical application value [8]. Group 3: International Collaboration - The event emphasized the importance of international collaboration in thoracic surgery, aiming to build a more open and inclusive global network [19]. - The German delegation shared insights on the "Magdeburg Model," showcasing how to establish an efficient thoracic surgery diagnosis and treatment system between hospitals [10]. - The exchange aimed to enhance cooperation in talent cultivation, technological innovation, and clinical research to address global challenges in thoracic surgery [19]. Group 4: Hands-on Learning - The event included live demonstrations of advanced surgical techniques such as three-dimensional reconstruction navigation surgery and single-port thoracoscopic lung segment resection [12]. - The German experts showed great interest in Jiangsu Provincial People's Hospital's precise lung segment and sub-segment resection surgical system [12]. Group 5: Closing Ceremony - A certificate awarding ceremony was held, recognizing the contributions of participating experts [15][17]. - The event concluded with the presentation of a book on innovative thoracic surgery techniques to the German physicians, marking a successful academic exchange [17].