嵌合抗原受体(CAR)T细胞疗法
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BioNTech Achieves Minimum Condition in CureVac Exchange Offer
Globenewswire· 2025-12-03 14:01
The minimum condition for the offer has been satisfied, with 184,071,410 shares of CureVac, representing approximately 81.74% of CureVac’s issued and outstanding shares, tendered prior to the expiration of the initial offering periodThe subsequent offering period has commenced and will expire at 12:01 a.m. Eastern Time on Thursday, December 18, 2025 MAINZ, Germany, December 3, 2025 – BioNTech SE (Nasdaq: BNTX, “BioNTech”) announced today that 184,071,410 shares of CureVac N.V. (Nasdaq: CVAC, “CureVac”), re ...
Immunity:刘光慧、田烨等八位中外科学家共探衰老与免疫前沿
生物世界· 2025-11-26 00:18
Core Viewpoint - The article discusses the relationship between aging and the immune system, emphasizing how immune responses change with age and the potential for manipulating immune function to extend healthy lifespan [2][24]. Group 1: Aging and Immune Response - Aging leads to significant changes in immune cell function, including a bias towards myeloid output from bone marrow, accumulation of senescent T cells, and increased levels of systemic inflammatory cytokines [6][24]. - The immune system is increasingly recognized as a key regulator of systemic aging, potentially driving the aging process rather than merely responding to it [24]. Group 2: Mitochondrial Function and Immune Aging - Mitochondrial dysfunction is central to immune aging, as age-related decline in mitochondrial function weakens immune responses and promotes chronic inflammation [7][8]. - Mitochondria also play a role in systemic signaling, influencing immune responses across different tissues, which is often overlooked in current models of immune aging [7][8]. Group 3: Spaceflight as a Model for Aging - Research using spaceflight environments reveals that many immune changes observed in aging, such as increased inflammatory mediators and impaired adaptive immune responses, can also occur in microgravity [9][12]. - This suggests that spaceflight can serve as a valuable model for studying the mechanisms of immune aging [9][12]. Group 4: Vaccine Response in the Elderly - Elderly individuals typically exhibit lower antibody titers and fewer memory B cells post-vaccination, leading to impaired protective immune responses [14]. - Recent findings indicate that the germinal center response in older adults can be enhanced, paving the way for improved vaccine strategies tailored to aging populations [14]. Group 5: T Cell Changes with Age - Aging is associated with various changes in T cells, including reduced diversity in T cell receptor repertoires and a shift towards inflammatory phenotypes [15][16]. - Understanding whether these changes are adaptive or degenerative is crucial for developing therapeutic strategies targeting age-related immune dysfunction [15][16]. Group 6: Personalized Immunotherapy - The potential of immune modulation in treating diseases is significant, with a focus on how aging affects the efficacy of immunotherapies like CAR-T cell therapy [19]. - Tailoring immunotherapy strategies based on age-related changes in immune cell function could enhance treatment outcomes across different age groups [19]. Group 7: Future Directions in Aging Research - The field must transition from defining aging processes to developing interventions, including identifying biomarkers and strategies to selectively target pathological aging cells [21]. - Integrating artificial intelligence with systems immunology could provide new insights into the regulatory nodes of immune aging, potentially allowing for interventions that recalibrate immune responses to slow aging [24][21].