撰文丨王聪 编辑丨王多鱼 排版丨水成文 最近，关于 牛磺酸 的研究接连登上三大顶刊 Science 、 Cell 和 Nature ，这些研究揭示了 牛磺酸的新功 能—— 抗衰老 【1】 、 提高癌症治疗效果 【2】 、 抗肥胖 【3】 ，当然，也不都是好消息，今年 5 月份发 表在 Nature 上的一项则显示， 肿瘤微环境中的牛磺酸会促进白血病 【4】 。 2025 年 6 月 5 日，牛磺酸研究再次登上顶刊 Science ，来自美国国立卫生研究院国家老龄化研究所的研 究团队 ，发表了题为： Is taurine an aging biomarker? （牛磺酸是衰老标志物吗？） ， 直接质疑了牛磺 酸作为衰老的生物标志物的观点 【5】 。 该研究显示：1）成年期循环牛磺酸浓度不会随年龄增长而下降；2）个体间循环牛磺酸浓度的差异通常大 于其一生中的纵向变化，这限制了其作为衰老生物标志物的实用性；3）循环牛磺酸浓度与健康状况的功能 指标之间的关联取决于具体情境 （年龄、物种或队列） ——。 研究团队进一步得出结论—— 牛磺酸浓度与衰老之间没有明显关联，循环牛磺酸浓度也就不太可能成为一 种良好的衰老生物标志 ...

Summary of Boundless Bio (BOLD) Update / Briefing May 27, 2025 Company Overview - **Company**: Boundless Bio (BOLD) - **Focus**: Development of therapies for oncogene amplified cancers, particularly through the study of extrachromosomal DNA (e cDNA) biology [5][6] Key Industry Insights - **Industry Context**: The biotechnology sector is facing challenges in securing funding and establishing differentiation due to a proliferation of competitor compounds [38] - **Market Considerations**: The company is prioritizing first-in-class drugs against innovative biological targets to maintain a competitive edge [38] Core Points and Arguments 1. **Portfolio Prioritization**: Boundless Bio has decided to discontinue all current arms of the BBI-355 clinical trial due to clinical observations and market considerations, shifting focus to a new trial arm evaluating BBI-355 in combination with BBI-825 [3][4] 2. **Workforce Reduction**: The company has streamlined operations, reducing its workforce by approximately 20 positions, representing about one-third of its staff, to extend its cash runway into the first half of 2028 [4][36] 3. **Development Candidates**: BBI-940 has been declared a development candidate for the novel kinesin oral degrader program, with an IND filing expected in the first half of 2026 [4][36] 4. **Clinical Findings**: BBI-355 has shown evidence of anti-tumor activity but has a narrow therapeutic index due to on-target hematologic toxicity, leading to the decision not to advance certain clinical arms [12][14] 5. **Combination Therapy Rationale**: The combination of BBI-355 and BBI-825 is believed to provide synergistic anti-tumor activity while minimizing hematologic toxicity, with plans to initiate clinical development in 2025 [28][29] Additional Important Content - **Scientific Basis**: The company has developed a proprietary SpyGlass platform to identify new targets in e cDNA biology, leading to the discovery of three druggable targets that may be synthetic lethal in oncogene amplified tumors [5][6] - **Clinical Strategy**: The combination of BBI-355 and BBI-825 is expected to leverage the unique mechanisms of both drugs, potentially overcoming the limitations observed when each is used independently [20][28] - **Preclinical Data**: BBI-940 has demonstrated potent anti-tumor activity in preclinical models, with favorable pharmacokinetics and oral bioavailability [33][34] - **Future Outlook**: The company is focused on achieving important clinical readout milestones and believes it is uniquely positioned with proprietary selective inhibitors [39][70] Financial Guidance - **Cash Runway**: The changes in operations and portfolio prioritization are expected to extend the company's cash runway into the first half of 2028, aligning with anticipated clinical readouts [36][37]

Core Viewpoint - China Biologic Products (01177) announced positive results from a Phase III clinical trial comparing Bemesumab injection combined with chemotherapy and Anlotinib hydrochloride capsules against Tislelizumab injection combined with chemotherapy for first-line treatment of advanced squamous non-small cell lung cancer (sq-NSCLC) [1][2] Group 1: Clinical Trial Results - The trial involved 565 patients randomly assigned to treatment and control groups, showing a median progression-free survival (mPFS) of 10.12 months for the trial group compared to 7.79 months for the control group, resulting in a 36% reduction in disease progression risk [2] - The objective response rates (ORR) were 71.9% for the trial group and 65.1% for the control group, with a median duration of response (DoR) of 9.69 months versus 8.34 months, indicating a significant improvement in the trial group [2] - Subgroup analysis revealed benefits across nearly all subgroups, particularly in the PD-L1 expression 1-49% population, with a hazard ratio (HR) of 0.47 [2] Group 2: Clinical Significance - The study addresses unmet clinical needs, as lung cancer has the highest incidence and mortality rates globally, with sq-NSCLC accounting for approximately 30% of all NSCLC cases [3] - The innovative treatment regimen may change existing treatment paradigms for advanced sq-NSCLC patients, who have limited options due to low mutation rates for targeted therapies [3] - The company aims to leverage its innovation and commercialization capabilities to accelerate the global market entry of this product, benefiting more patients [3]

Core Viewpoint - Prostate cancer is gaining public attention, with advanced radiation therapy, particularly proton therapy, showing significant potential as a treatment option for elderly patients like Biden [1] Group 1: Treatment Landscape - Prostate cancer treatment in the U.S. is primarily radiation-based (70%) with surgery as a secondary option (30%), leading to a nearly 98% five-year survival rate [1] - Advanced radiation techniques, including proton therapy, have significantly reduced side effects such as erectile dysfunction and urinary incontinence compared to traditional methods [1] Group 2: Advantages of Proton Therapy - Proton therapy offers precise targeting of tumors, minimizing damage to surrounding healthy tissues through the Bragg peak effect, unlike traditional photon therapy which can harm adjacent organs [3] - The ability to deliver higher doses (82-87 GyRBE) to tumors without damaging surrounding tissues enhances local control rates [3] - Proton therapy significantly reduces long-term side effects, improving patients' quality of life post-treatment [3] Group 3: Patient Selection for Proton Therapy - Patients with localized prostate cancer (T1-T2) can achieve over 95% five-year biochemical recurrence-free survival with proton therapy [5] - Low-risk patients can achieve a 94%-99% five-year survival rate with minimal rectal toxicity [6] - Intermediate-risk patients benefit from combined proton therapy and short-term hormone therapy, achieving 91%-94% five-year biochemical recurrence-free survival [6] - Elderly patients or those with comorbidities experience lower rates of severe side effects with proton therapy compared to surgical options [7] Group 4: Global Application and Development - The U.S., Europe, Japan, and China are leading in the application of proton therapy for prostate cancer, with the U.S. integrating it into treatment guidelines [9] - China is rapidly developing its proton therapy capabilities, with centers like the Shanghai Proton and Heavy Ion Center reporting a 100% five-year specific survival rate for localized prostate cancer patients [10] - Clinical cases in China demonstrate the effectiveness of proton therapy in controlling tumors while minimizing side effects, enhancing patient quality of life [10]

Summary of Merus Investor Call Company Overview - Merus is an oncology-focused company with a proprietary technology platform for developing bispecific and multispecific antibodies, including pitocentimab and other clinical assets [6][8][35] - The company received its first FDA approval for BIZENGRI, validating its capabilities in oncology drug development [6] Clinical Data Presentation - The call focused on the phase two interim clinical data of pitocentimab in combination with pembrolizumab for first-line recurrent metastatic head and neck squamous cell carcinoma [2][5] - Data will be presented at the ASCO Annual Meeting on June 2, 2025 [2][5] Key Clinical Findings - **Efficacy of Pitocentimab**: - The overall response rate (ORR) for pitocentimab monotherapy was 36% with a median duration of response of 6.2 months [17] - In combination with pembrolizumab, the ORR was 63% (27 out of 43 patients) with a 95% confidence interval indicating a lower bound of 49% [27] - The median progression-free survival (PFS) was 9 months, significantly higher than historical data for pembrolizumab alone [29] - The 12-month overall survival (OS) rate was 79%, compared to 51% for pembrolizumab monotherapy [30] - **Safety Profile**: - The combination therapy was well tolerated with no significant overlapping toxicities observed [32][26] - The incidence of treatment-emerging adverse events was manageable, with 38% of patients reporting infusion-related reactions [26] Market Opportunity - The head and neck cancer market is estimated to be around $4 billion in 2024, with significant unmet medical needs [37][39] - Merus aims to position pitocentimab as a first and best-in-class treatment option, potentially changing clinical practice [38][39] Regulatory and Development Strategy - Merus is confident in the potential for accelerated approval based on strong ORR and survival data [66] - The company plans to substantially enroll both Phase III registration trials by the end of 2025, with top-line readouts expected in 2026 [42][34] Intellectual Property - Merus holds a robust patent estate covering its platform technologies and clinical assets, ensuring protection for its innovations [35] Additional Insights - The company emphasizes the importance of including both HPV positive and negative patients in clinical trials, with a focus on maintaining a consistent patient population across studies [101][102] - There is a strong belief that the combination of pitocentimab and pembrolizumab could provide a transformative treatment option for patients with recurrent metastatic head and neck cancer [41][42] Conclusion - Merus is advancing its clinical development of pitocentimab with promising efficacy and safety data, aiming to address significant unmet needs in the oncology market, particularly in head and neck cancer [41][43]

Core Viewpoint - The article discusses the recent diagnosis of former U.S. President Biden with aggressive prostate cancer, highlighting the emotional support he has received and the potential for effective treatment due to the cancer's hormone sensitivity [1][1][1]. Group 1 - Biden was diagnosed with malignant prostate cancer that has spread to his bones, as announced by his office on May 18 [1]. - Despite the aggressive nature of the cancer, it appears to be hormone-sensitive, allowing for potential effective treatment options [1][1]. - Biden's family is actively discussing treatment plans with his doctors [1]. Group 2 - Former President Trump expressed his condolences and well wishes for Biden's recovery on his social media platform [1][1]. - The article emphasizes the personal impact of cancer, noting that it affects everyone and can lead to resilience [1].

撰文丨王聪 编辑丨王多鱼 排版丨水成文 在 细胞 这个精密运转的"微型城市"中，信使RNA （mRNA） 分子如同快递包裹， 承载着生命活动的核心 指令，将来自 DNA 的遗传信息通过核糖体翻译为蛋白质，以执行生命活动。 N 6 -甲基 腺 苷 （ m 6 A ） 是 mRNA 中最常见的化学修饰 ，其在特定的 mRNA 中富集，并发挥着调节 细胞生长、分化和细胞应激反应的重要作用， m 6 A 是由包含 METTL3 和 METTL14 的异二聚体甲基转 移酶在 mRNA 上合成的。 m 6 A 的主要作用是促进 mRNA 的降解，因此，携带 m 6 A 的 mRNA 通常维 持在较低水平，而这些 mRNA 中的许多编码关键细胞过程的重要调控因子，其上调对于激活各种细胞反应 是必需的。 细胞应激反应依赖于由 m 6 A-mRNA 编码的蛋白质。例如，氨基酸耗竭压力会改变基因表达，以增强资源 的保存、恢复营养水平以及提高抗压能力。这些通路通常利用富含 m 6 A 的 mRNA，这些 mRNA 编码代 谢调控因子、DNA 修复通路蛋白和自噬蛋白。尽管已发现某些 mRNA 的水平在应激期间有所上升，但尚 不清楚这 ...

Core Insights - The company, He Yu-B (02256), announced the presentation of four groundbreaking preclinical research results at the 2025 American Association for Cancer Research (AACR) conference, highlighting advancements in cancer treatment [1][2][3]. Group 1: Research Findings - The first study presented was on ABSK112, a selective and CNS-penetrant HER2 inhibitor, showing strong efficacy for treating HER2-driven solid tumors, supporting its clinical evaluation in patients with brain metastases [1]. - The second study focused on the loss-of-function (LoF) mutations of KEAP1 in non-small cell lung cancer (NSCLC), which promote resistance to KRAS G12C inhibitors through various mechanisms, suggesting that targeting glutamine metabolism and MAPK pathways could reverse this resistance [2]. - The third study highlighted ABSK131, which exhibited significant anti-tumor activity in MTAP-deleted lung and pancreatic cancer models, demonstrating strong synergistic potential with various therapeutic agents [2]. - The fourth study introduced ABK-KRAS-1, a highly potent small-molecule inhibitor that shows broad activity against diverse KRAS mutations, indicating its potential as a promising treatment candidate for KRAS-mutant cancers [3].

Group 1: Company Overview - Huangshan Yongsheng Tribe Stem Cell Technology Co., Ltd. focuses on the research and industrialization of immune cells and stem cell new drugs, with a core founding team from Tsinghua University and Beijing 301 Hospital [14] - The company aims to develop a universal CAR-NK cell platform targeting common solid tumors such as lung cancer, thyroid cancer, liver cancer, gastric cancer, colorectal cancer, breast cancer, and cervical cancer [14] - The company has completed a multi-million angel round financing to support the construction of a stem cell laboratory and the clinical transformation of its core CAR-NK technology for lung cancer treatment [1] Group 2: Industry Trends - The stem cell market in China is expected to exceed 100 billion by 2025, driven by increasing demand for cancer prevention and treatment [2] - In 2024, China Cancer Center reported 4.82 million new cancer cases annually, with lung cancer accounting for 1.06 million cases, representing 22% of all malignant tumors [3] - CAR-NK therapy is emerging as a promising solution for solid tumors, with the potential to significantly improve treatment efficacy compared to traditional methods [5][6] Group 3: Investment Insights - Investors are increasingly focusing on the life sciences sector, with significant capital flowing into cell therapy, indicating a belief that the next trillion-dollar enterprise will emerge from this field [8] - The founding team of Yongsheng Tribe is recognized for their commitment to life sciences, which enhances investor confidence in the company's long-term vision [8][9] - The collaboration between Yongsheng Tribe and leading investment firms is seen as a strategic move to unlock new possibilities in cancer treatment [10]

Lisata Therapeutics (LSTA) Q4 2024 Earnings Call February 27, 2025 04:30 PM ET Company Participants John Menditto - Vice President of Investor Relations & Corporate CommunicationsDavid Mazzo - President and Chief Executive OfficerJames Nisco - Senior VP of Finance, Treasurer, CAO & Principal Financial and Accounting OfficerKristen Buck - Executive VP of R&D and Chief Medical OfficerSara Nik - Senior Associate - Equity ResearchPeter Enderlin - Portfolio ManagerSteve Brozak - President & Managing Partner Conf ...