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Targeting palmitoylation: A novel frontier in cancer biology and immunotherapy 靶向棕榈酰化:癌症生物学和免疫治疗的新前沿。
IF 9.7 1区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-12-07 DOI: 10.1016/j.bbcan.2025.189509
Ye Yang , Enqi Zhang , Xuanli Mao , Guohong Liu , Yunbao Pan
Protein palmitoylation, a dynamic post-translational modification involving the reversible attachment of palmitic acid to cysteine residues, has emerged as a pivotal regulator of tumor biology. This review synthesizes the latest insights into palmitoylation's contributions to cancer, emphasizing its roles in metabolic reprogramming, oncogenic signaling, immune modulation, and therapeutic responsiveness. The ZDHHC family of palmitoyltransferases, in concert with depalmitoylases, coordinates intricate regulatory networks that govern protein localization, stability, and interactions essential for tumor proliferation, invasion, and immune evasion. Driven by dysregulated lipid metabolism, aberrant palmitoylation modulates key pathways such as AKT-mTOR and Wnt/β-catenin, while also stabilizing immune checkpoints like PD-L1 and TIM-3 to sculpt an immunosuppressive tumor microenvironment. Advances in multi-omics integration and detection technologies, including high-resolution mass spectrometry and imaging modalities, have deepened our mechanistic understanding of these processes. Preclinical evidence underscores the promise of small-molecule inhibitors like 2-bromopalmitate and TVB-3166, which disrupt palmitoylation to inhibit tumor growth and potentiate immunotherapy. Nonetheless, hurdles in selectivity, toxicity, and resistance demand further optimization for clinical translation. Future research should focus on unraveling palmitoylation's interplay with immune dynamics and advancing biomarker-guided, personalized therapies to elevate cancer outcomes.
蛋白棕榈酰化是一种动态的翻译后修饰,涉及棕榈酸与半胱氨酸残基的可逆附着,已成为肿瘤生物学的关键调节因子。这篇综述综合了棕榈酰化对癌症的贡献的最新见解,强调了它在代谢重编程、致癌信号、免疫调节和治疗反应中的作用。棕榈酰转移酶ZDHHC家族,与去棕榈酰化酶协同,协调复杂的调节网络,控制肿瘤增殖、侵袭和免疫逃避所必需的蛋白质定位、稳定性和相互作用。在脂质代谢失调的驱动下,异常棕榈酰化调节AKT-mTOR和Wnt/β-catenin等关键通路,同时稳定PD-L1和TIM-3等免疫检查点,形成免疫抑制的肿瘤微环境。多组学集成和检测技术的进步,包括高分辨率质谱和成像模式,加深了我们对这些过程的机制理解。临床前证据强调了小分子抑制剂如2-溴铝酸盐和TVB-3166的前景,它们破坏棕榈酰化以抑制肿瘤生长并增强免疫治疗。尽管如此,在选择性、毒性和耐药性方面的障碍需要进一步优化临床翻译。未来的研究应侧重于揭示棕榈酰化与免疫动力学的相互作用,并推进生物标志物引导的个性化治疗,以提高癌症预后。
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引用次数: 0
Role of N7-methylguanosine in gastrointestinal tumors: Molecular mechanisms and therapeutic targets n7 -甲基鸟苷在胃肠道肿瘤中的作用:分子机制和治疗靶点。
IF 9.7 1区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-12-07 DOI: 10.1016/j.bbcan.2025.189511
Jingyuan Li , Yangxian Xu , Lisheng Wang , Guang Ji , Yanqi Dang
N7-methylguanosine (m7G), a widely prevalent post-transcriptional modification of RNA, exhibits significant regulatory changes across diverse RNA molecules, thereby affecting essential RNA metabolic processes. Aberrant levels of m7G modification have been increasingly linked to a broad spectrum of diseases, influencing oncogene expression and contributing to pathological mechanisms. The relationship between m7G modification and the initiation and progression of various tumor types is intricate and multifaceted. Moreover, current evidence suggests that m7G may play a role in regulating processes within immune cells, thereby implicating it in immune-related pathologies, including cancer. The targeted manipulation of m7G and its regulatory pathways holds significant promise for advancements in immunotherapy, potentially enhancing the modulation of immune responses and overcoming drug resistance. In gastrointestinal (GI) tumors, where immune evasion and therapy resistance are prominent challenges, understanding the role of m7G becomes particularly critical. This comprehensive review systematically examines the current body of research on m7G within the context of GI tumors, offering a detailed analysis of its dysregulated patterns in both malignant and immune cells. The molecular mechanisms underlying tumorigenesis mediated by m7G epigenetics are summarized, and therapeutic strategies aiming at targeting m7G modifications are discussed. Additionally, this review provides insights into potential future directions in the fields of diagnosis and prognosis.
n7 -甲基鸟苷(m7G)是一种广泛存在的RNA转录后修饰,在不同的RNA分子中表现出显著的调控变化,从而影响基本的RNA代谢过程。m7G修饰的异常水平越来越多地与广泛的疾病联系在一起,影响癌基因表达并促进病理机制。m7G修饰与各种肿瘤类型的发生和发展之间的关系是复杂和多方面的。此外,目前的证据表明,m7G可能在调节免疫细胞内的过程中发挥作用,从而暗示它与免疫相关的病理,包括癌症有关。靶向操纵m7G及其调控途径对免疫治疗的进步具有重要的前景,可能增强免疫反应的调节并克服耐药性。在胃肠道(GI)肿瘤中,免疫逃避和治疗抵抗是突出的挑战,了解m7G的作用变得尤为重要。这篇全面的综述系统地检查了目前胃肠道肿瘤中m7G的研究,详细分析了其在恶性和免疫细胞中的失调模式。综述了m7G表观遗传学介导肿瘤发生的分子机制,并讨论了针对m7G修饰的治疗策略。此外,本文还对其在诊断和预后领域的潜在发展方向进行了展望。
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引用次数: 0
Dysregulated mitochondrial dynamics in cancer: Unlocking new strategies to combat drug resistance 癌症中线粒体动力学失调:解锁对抗耐药性的新策略。
IF 9.7 1区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-12-06 DOI: 10.1016/j.bbcan.2025.189510
Teresa Rossi , Roberta Torcasio , Ludovica Ganino , Ilenia Valentino , Christian Boni , Massimo Gentile , Antonino Neri , Nicola Amodio , Mariaelena Pistoni
Mitochondria continuously alternate between fragmented and fused states, a process known as mitochondrial dynamics, which plays a pivotal role in essential cellular functions, including metabolism, apoptosis, reactive oxygen species production, and signal transduction. Disruptions in this dynamic equilibrium, frequently observed in aggressive cancers, can promote malignant transformation and tumor progression. A growing body of evidence indicates that dysregulated mitochondrial dynamics contribute to resistance against both conventional and targeted anticancer therapies. In this review, we explore the regulatory mechanisms governing mitochondrial dynamics, with a focus on the genetic and epigenetic modulation of key drivers such as DRP1, MFN1/2 and OPA1. We also discuss how altered mitochondrial dynamics converge into diverse mechanisms of drug resistance in cancer. Overall, these insights underscore aberrant mitochondrial dynamics as a potential biomarker of therapeutic resistance, and position mitochondrial dynamics–related GTPases, particularly DRP1 and Mitofusins, as exploitable targets for novel treatments in advanced solid and hematologic malignancies.
线粒体在分裂和融合状态之间不断交替,这一过程被称为线粒体动力学,在基本细胞功能中起着关键作用,包括代谢、凋亡、活性氧产生和信号转导。这种动态平衡的破坏,在侵袭性癌症中经常观察到,可以促进恶性转化和肿瘤进展。越来越多的证据表明,线粒体动力学失调有助于抵抗常规和靶向抗癌治疗。在这篇综述中,我们探讨了线粒体动力学的调控机制,重点关注DRP1、MFN1/2和OPA1等关键驱动因子的遗传和表观遗传调控。我们还讨论了改变的线粒体动力学如何汇聚到癌症耐药的各种机制中。总的来说,这些见解强调了异常线粒体动力学作为治疗耐药的潜在生物标志物,并将线粒体动力学相关的gtp酶,特别是DRP1和Mitofusins,作为晚期实体和血液恶性肿瘤新治疗的可利用靶点。
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引用次数: 0
YY1: Master regulator of metabolic reprogramming in cancer YY1:癌症中代谢重编程的主要调节器。
IF 9.7 1区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-12-05 DOI: 10.1016/j.bbcan.2025.189505
Rimsha Akram , Rendy Hosea , Fuqiang Zhao , Andrzej Górecki , Małgorzata Figiel , Shourong Wu , Vivi Kasim
Metabolic reprogramming is a hallmark of cancer, enabling tumor cells to fulfill increased bioenergetic and biosynthetic demands for survival and proliferation. These adaptations arise directly from oncogenic mutations or indirectly via adaptive responses to nutrient scarcity. In addition to supporting survival and biomass production, these metabolic shifts are closely associated with changes in gene expression, cellular differentiation, and the tumor microenvironment, thereby contributing to tumorigenesis and progression. Importantly, the recognition of metabolic dysregulation as a hallmark of malignancy revealed novel avenues for therapeutic intervention, as disrupting these pathways may impair energy generation and biosynthetic processes essential for tumor proliferation. In this review, we integrate data indicating that the transcription factor Yin yang 1 (YY1) is a central regulator of oncogenic metabolic reprogramming. Yin yang 2 (YY2) is a paralog of YY1 and performs distinct role in metabolism and redox regulation. Mechanistically, YY1 enhances aerobic glycolysis by diverting glycolytic flux toward lactate production. Furthermore, it modulates hepatic lipid homeostasis via direct transcriptional control of lipogenic enzymes and crosstalk with nutrient-sensing signaling cascades. Additionally, YY1 rewires amino acid metabolism to fuel tumorigenesis by supplying macromolecules and enabling epigenetic remodeling. Collectively, these findings highlight the equilibrium between YY1 and its paralog YY2 in sustaining redox homeostasis and tumor progression while positioning YY1 as a metabolic checkpoint that dynamically regulates these processes. Understanding these pathways will support development of YY1-directed inhibitors and combinatorial therapies to modulate metabolic reprogramming in cancer.
代谢重编程是癌症的一个标志,使肿瘤细胞能够满足生存和增殖的生物能量和生物合成需求。这些适应直接来自致癌突变或间接通过对营养缺乏的适应性反应。除了支持生存和生物量生产外,这些代谢变化与基因表达、细胞分化和肿瘤微环境的变化密切相关,从而促进肿瘤的发生和进展。重要的是,认识到代谢失调是恶性肿瘤的一个标志,揭示了治疗干预的新途径,因为破坏这些途径可能会损害肿瘤增殖所必需的能量产生和生物合成过程。在这篇综述中,我们整合了表明转录因子阴阳1 (YY1)是致癌代谢重编程的中心调节因子的数据。阴阳2 (YY2)是YY1的类似物,在代谢和氧化还原调节中发挥着独特的作用。从机制上讲,YY1通过将糖酵解通量转向乳酸生成来增强有氧糖酵解。此外,它通过直接转录控制脂肪生成酶和与营养感应信号级联的串扰来调节肝脏脂质稳态。此外,YY1重组氨基酸代谢,通过提供大分子和使表观遗传重塑来促进肿瘤发生。总的来说,这些发现强调了YY1及其相似的YY2在维持氧化还原稳态和肿瘤进展方面的平衡,同时将YY1定位为动态调节这些过程的代谢检查点。了解这些途径将有助于开发以yy1为导向的抑制剂和组合疗法来调节癌症中的代谢重编程。
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引用次数: 0
Novel insights in the diagnosis and treatment of non-small cell lung cancer: Post-translational modification of proteins 在非小细胞肺癌的诊断和治疗的新见解:蛋白质的翻译后修饰。
IF 9.7 1区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-12-05 DOI: 10.1016/j.bbcan.2025.189507
Yuting Sun , Weijia Kong , Xiaoyu Zhu , Xuelei Chu, Xinmiao Wang, Guanghui Zhu, Xue He, Jie Li
Non-small cell lung cancer (NSCLC) is associated with a high incidence and mortality rate, imposing a significant economic burden worldwide. The development of standardized diagnostic and targeted therapeutic approaches is essential. Protein post-translational modifications (PTMs) play a critical role in regulating biological functions during both physiological and pathological states, as they reversibly and dynamically adjust protein activity in response to changes in internal and external conditions. Various types of PTMs, including ubiquitination, phosphorylation, glycosylation, Small Ubiquitin-like Modifier (SUMO)ylation, acetylation, palmitoylation, and lactylation, have been shown to correlate significantly with the onset, progression, metastasis, treatment, and drug resistance of NSCLC. These modifications are involved in the initiation and progression of NSCLC and are linked to patient survival outcomes. Additionally, different therapeutic modalities, such as chemotherapy, radiation therapy, and immunotherapy, can influence treatment efficacy by altering PTMs. However, the challenge of drug resistance significantly undermines therapeutic effectiveness and patient outcomes. This review emphasizes the importance of PTMs in drug resistance and highlights their potential to inform more precise treatment strategies for NSCLC, ultimately contributing to a reduction in disability-adjusted life years, which is of considerable practical importance.
非小细胞肺癌(NSCLC)具有高发病率和高死亡率,在世界范围内造成了巨大的经济负担。发展标准化的诊断和有针对性的治疗方法至关重要。蛋白翻译后修饰(Protein post-translational modification, PTMs)在生理和病理状态下对生物功能的调节都起着至关重要的作用,它们可以根据内外条件的变化,可逆地、动态地调节蛋白质的活性。各种类型的PTMs,包括泛素化、磷酸化、糖基化、小泛素样修饰物(Small Ubiquitin-like Modifier, SUMO)化、乙酰化、棕榈酰化和乳酸化,已被证明与NSCLC的发病、进展、转移、治疗和耐药性显著相关。这些修饰与NSCLC的起始和进展有关,并与患者的生存结果有关。此外,不同的治疗方式,如化疗、放射治疗和免疫治疗,可以通过改变PTMs来影响治疗效果。然而,耐药性的挑战极大地破坏了治疗效果和患者的预后。这篇综述强调了ptm在耐药中的重要性,并强调了它们为NSCLC提供更精确治疗策略的潜力,最终有助于减少残疾调整生命年,这具有相当大的实际意义。
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引用次数: 0
Targeting MAO offers a novel immunotherapeutic strategy for prostate cancer by modulating the “tumor-stroma-immune” interaction network 靶向MAO通过调节“肿瘤-基质-免疫”相互作用网络为前列腺癌提供了一种新的免疫治疗策略。
IF 9.7 1区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-12-04 DOI: 10.1016/j.bbcan.2025.189506
Yaohua Hu , Zhite Zhao , Yifan Ma , Xinglin He , Changhong Shi
Prostate cancer (PCa) is a highly prevalent malignant tumor in men, often progressing to castration-resistant prostate cancer (CRPC) and metastasis or neuroendocrine differentiation, leading to treatment failure. Its high heterogeneity and immunosuppressive tumor microenvironment (TME) are major challenges in treatment, characterized by low immunogenicity and a complex “tumor-stroma-immune” interaction network. Monoamine oxidase (MAO), a mitochondrial enzyme that degrades monoamine neurotransmitters and dietary amines via MAOA and MAOB isoforms. Studies have shown that MAOA and MAOB exhibit differential expression patterns in cancer cells, stromal cells, and immune cells, and may function cooperatively to promote PCa progression. This review clarifies how MAO influence PCa progression by regulating the “tumor-stroma-immune” interaction network, elucidate the impact of MAO on CD8+ T-cell infiltration and tumor-associated macrophages (TAMs) polarization in the TME, and proposes that precision targeting of MAO offers a stage- and cell-type-spanning strategy to surmount immunotherapy resistance in PCa. It provides a theoretical basis for developing intervention strategies based on MAO inhibitor to achieve effective immunotherapy for PCa.
前列腺癌(Prostate cancer, PCa)是男性中一种高发的恶性肿瘤,常发展为去势抵抗性前列腺癌(CRPC)并发生转移或神经内分泌分化,导致治疗失败。其高异质性和免疫抑制肿瘤微环境(TME)是治疗的主要挑战,其特点是低免疫原性和复杂的“肿瘤-基质-免疫”相互作用网络。单胺氧化酶(MAO),一种线粒体酶,通过MAOA和MAOB异构体降解单胺类神经递质和膳食胺。研究表明,MAOA和MAOB在癌细胞、基质细胞和免疫细胞中表现出不同的表达模式,并可能协同促进PCa的进展。这篇综述阐明了MAO如何通过调节“肿瘤-基质-免疫”相互作用网络影响PCa的进展,阐明了MAO对TME中CD8+ t细胞浸润和肿瘤相关巨噬细胞(tam)极化的影响,并提出精确靶向MAO提供了一种跨越阶段和细胞类型的策略,以克服PCa的免疫治疗耐药性。为开发基于MAO抑制剂的干预策略,实现有效的PCa免疫治疗提供了理论依据。
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引用次数: 0
Same mutation, different fates: The Yin-Yang of BRAF-driven therapeutic responses in melanoma and colorectal cancer 相同的突变,不同的命运:braf驱动的黑色素瘤和结直肠癌治疗反应的阴阳。
IF 9.7 1区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-12-02 DOI: 10.1016/j.bbcan.2025.189503
Carme Solé-Blanch , Sofia España , Alba de la Puente-Noel , Oskar Marin-Béjar , José Luis Manzano , Anna Martinez-Cardús
BRAF mutations are key oncogenic drivers across multiple cancers, yet their therapeutic exploitation varies markedly by tumor type. In melanoma, the combination of BRAF and MEK inhibitors has revolutionized treatment, yielding unprecedented clinical benefits. However, both intrinsic and acquired resistance mechanisms continue to limit long-term efficacy. In contrast, BRAF-targeted therapies in colorectal cancer (CRC) have shown limited success, even when combined with EGFR inhibitors to counteract compensatory survival pathways. Despite these differences, resistance ultimately emerges in both malignancies, driven by partially overlapping mechanisms that remain incompletely understood in CRC. This review dissects the “yin-yang” of BRAF as a therapeutic vulnerability in these two malignancies, we underscore the critical importance of tumor-specific context in precision oncology. Understanding the divergent responses to BRAF inhibition across cancer types is essential to refine current approaches and guide the development of more effective, personalized treatment strategies.
BRAF突变是多种癌症的关键致癌驱动因素,但其治疗利用因肿瘤类型而有显著差异。在黑色素瘤中,BRAF和MEK抑制剂的联合使用已经彻底改变了治疗方法,产生了前所未有的临床效益。然而,内在和获得性耐药机制继续限制长期疗效。相比之下,结直肠癌(CRC)的braf靶向治疗显示出有限的成功,即使与EGFR抑制剂联合使用以抵消代偿性生存途径。尽管存在这些差异,耐药性最终在两种恶性肿瘤中出现,由部分重叠的机制驱动,在CRC中仍未完全了解。这篇综述剖析了BRAF作为这两种恶性肿瘤的治疗易感性的“阴阳”,我们强调了肿瘤特异性背景在精确肿瘤学中的关键重要性。了解不同癌症类型对BRAF抑制的不同反应对于改进当前方法和指导开发更有效、个性化的治疗策略至关重要。
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引用次数: 0
Application of in vitro and in vivo cancer models to study the impact of the tumor immune microenvironment on anticancer therapy 应用体外和体内肿瘤模型研究肿瘤免疫微环境对抗癌治疗的影响
IF 9.7 1区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-12-01 DOI: 10.1016/j.bbcan.2025.189504
Rajat Gupta , Raghu Radhakrishnan , Shama Prasada Kabekkodu , Sanjiban Chakrabarty
The tumor microenvironment is a dynamic, heterogeneous cellular ecosystem that includes cancer cells, cancer-associated fibroblasts (CAFs), endothelial cells, and immune cells. Immortalized cancer cell lines specific to a particular cancer type have been extensively used to investigate the anticancer effects and functional aspects of novel drugs. However, cancer cell lines do not accurately mimic the complex multicellular nature of organs. Since species-specific differences in mouse models of human cancer impact the interpretation of therapeutic efficacy, efforts have been made to reduce and replace the use of animals in the drug development process. It is now acknowledged that existing tumor models may not adequately simulate the tumor microenvironment. This has led to an increasing need for complex tumor models that can accurately represent the tumor immune microenvironment (TIME). The Organ-on-Chip (OoC) device has features that enable high-throughput screening and repeatable drug testing procedures by accurately simulating the tumor microenvironment (TME). Furthermore, although animal models remain vital for systemic analysis, the interpretation of therapeutic efficacy is often hindered by species-specific differences in immune and physiological responses. This limitation has created a critical conceptual gap in preclinical research. We acknowledge the pressing need for complex tumor models that can accurately simulate the tumor immune microenvironment (TIME).
The immune system plays two key roles in cancer: fighting tumors and promoting the development of carcinogenesis. Recent advances have been made in understanding how the immune system contributes to cancer progression and the development of immune cell treatments for improved prognosis. In vivo and in vitro models have been created to investigate therapy resistance and the function of the tumor immune microenvironment (TIME) in anticancer therapy. This review provides a critical and balanced evaluation of the various in vitro (organoids, organ-on-chip, bioprinting) and in vivo (PDX, Humanized Mice) models utilized to study the TIME. We move beyond descriptive summaries to offer a functional comparison of these platforms, specifically delineating their utility in overcoming the clinical challenges of therapy resistance mechanisms and translational immunotherapy evaluations. This comparative approach demonstrates how advanced models, such as organ-on-chip (OoC), which enable dynamic control of the microenvironment and integration of multiple organs, can complement and refine the drug development process.
肿瘤微环境是一个动态的、异质性的细胞生态系统,包括癌细胞、癌症相关成纤维细胞(CAFs)、内皮细胞和免疫细胞。针对特定癌症类型的永生化癌细胞系已被广泛用于研究新药的抗癌作用和功能方面。然而,癌细胞系并不能准确地模拟器官复杂的多细胞性质。由于人类癌症小鼠模型的物种特异性差异会影响治疗效果的解释,因此已经努力减少和取代药物开发过程中对动物的使用。现在人们认识到,现有的肿瘤模型可能不能充分模拟肿瘤微环境。这导致对能够准确代表肿瘤免疫微环境(TIME)的复杂肿瘤模型的需求日益增加。器官芯片(OoC)设备具有通过精确模拟肿瘤微环境(TME)实现高通量筛选和可重复药物测试程序的功能。此外,尽管动物模型对系统分析仍然至关重要,但对治疗效果的解释往往受到免疫和生理反应的物种特异性差异的阻碍。这一限制在临床前研究中造成了一个关键的概念差距。我们认识到迫切需要能够准确模拟肿瘤免疫微环境(TIME)的复杂肿瘤模型。免疫系统在癌症中起着两个关键作用:对抗肿瘤和促进癌变的发展。最近在了解免疫系统如何促进癌症进展和开发免疫细胞治疗以改善预后方面取得了进展。已经建立了体内和体外模型来研究肿瘤免疫微环境(TIME)在抗癌治疗中的耐药性和功能。本综述对用于研究TIME的各种体外(类器官、芯片上器官、生物打印)和体内(PDX、人源化小鼠)模型进行了批判性和平衡的评价。我们将超越描述性总结,提供这些平台的功能比较,特别是描述它们在克服治疗耐药机制和转化免疫治疗评估的临床挑战方面的效用。这种比较方法展示了先进的模型,如器官芯片(OoC),能够动态控制微环境和整合多个器官,如何补充和完善药物开发过程。
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引用次数: 0
M6A methylation in tumor immune microenvironment: Multidimensional mechanism and targeted therapy strategies 肿瘤免疫微环境中的M6A甲基化:多维机制和靶向治疗策略
IF 9.7 1区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-11-01 DOI: 10.1016/j.bbcan.2025.189489
Senxu Lu , Junxiu Liu , Shixin Chen , Binghao Li , Zhaoming Ye
N6-methyladenosine (m6A) modification, a dynamic and reversible post-transcriptional RNA alteration, plays a critical role in the precise regulation of gene expression and is fundamentally implicated in the interplay between tumor cells and the immune system. This review focuses on the regulatory mechanisms of m6A methylation in tumor immunology. We examine how m6A modifications within tumor cells reprogram the tumor immune microenvironment by modulating immune checkpoints, canonical signaling pathways, and cytokine secretion, as well as directly regulating immune-related genes. Crucially, we also dissect how m6A modification within immune cells shapes the immune microenvironment. Furthermore, we propose novel therapeutic strategies combining m6A targeting with immunotherapy. Collectively, this review provides novel insights into the role of m6A methylation in tumor immunology and paves the way for future research directions.
n6 -甲基腺苷(m6A)修饰是一种动态可逆的转录后RNA改变,在基因表达的精确调控中起着关键作用,并从根本上涉及肿瘤细胞与免疫系统之间的相互作用。本文就m6A甲基化在肿瘤免疫学中的调控机制作一综述。我们研究了肿瘤细胞中的m6A修饰如何通过调节免疫检查点、典型信号通路和细胞因子分泌以及直接调节免疫相关基因来重编程肿瘤免疫微环境。至关重要的是,我们还剖析了免疫细胞内m6A修饰如何塑造免疫微环境。此外,我们提出了m6A靶向与免疫治疗相结合的新治疗策略。总之,本综述为m6A甲基化在肿瘤免疫学中的作用提供了新的见解,并为未来的研究方向铺平了道路。
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引用次数: 0
Hyperthermia-induced apoptosis: The role of magnetic nanoparticles in targeted delivery for breast cancer treatment 高温诱导的细胞凋亡:磁性纳米颗粒在乳腺癌治疗靶向递送中的作用
IF 9.7 1区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2025-11-01 DOI: 10.1016/j.bbcan.2025.189490
Pankaj Garg , Madhu Krishna , David Horne , Ravi Salgia , Sharad S. Singhal
Magnetochemistry is opening new frontiers in the targeted treatment of breast cancer (BC), offering a precise and innovative way to deliver therapies exactly where they're needed. Beyond drug delivery, magnetic nanoparticles (MNPs) can generate localized heat under alternating magnetic fields, initiating controlled hyperthermia that induces apoptotic cell death in tumor tissues. MNPs, particularly iron-oxide-based magnetite (Fe₃O₄) and maghemite (γ-Fe₂O₃), can be magnetically guided toward tumor sites and subsequently activated under alternating magnetic field (AMFs) (typically 100–500 kHz and 10–40 kA m−1) to generate therapeutic heat through Néel and Brownian relaxation losses. At the tumor, drugs can be released in a controlled manner in response to environmental cues such as pH changes, enzymes, or magnetic stimuli. By harnessing this dual role of MNPs, as targeted carriers and thermal effectors, researchers achieve spatially selective, minimally invasive treatment. Mechanistically, magnetically induced hyperthermia elevates local temperature to 42–46 °C, which triggers reactive oxygen species (ROS) generation, mitochondrial membrane depolarization, and caspase-3/9 activation—hallmarks of apoptosis in BC cells. This integrated approach not only concentrates drugs at the tumor but also sensitizes cancer cells to chemo- and radiotherapy, while minimizing systemic toxicity. Static or dynamic magnetic fields can be used to steer these particles, while their surfaces can be engineered through chemical bonding, physical encapsulation, or adsorption techniques. Moreover, combining magnetic targeting with antibody-based recognition improves specificity and therapeutic impact. While the promise of magnetochemistry in BC treatment is clear, ongoing research is essential to optimize these technologies and bring them fully into clinical practice.
磁化学为乳腺癌的靶向治疗开辟了新的领域,提供了一种精确和创新的方法,可以准确地在需要的地方提供治疗。除了药物递送,磁性纳米颗粒(MNPs)还可以在交变磁场下产生局部热量,启动可控热疗,诱导肿瘤组织中凋亡细胞死亡。MNPs,特别是氧化铁基磁铁矿(Fe₃O₄)和磁赤铁矿(γ-Fe₂O₃),可以被磁引导到肿瘤部位,随后在交变磁场(AMFs)(通常为100-500 kHz和10-40 kA m−1)下被激活,通过nsamel和布朗松弛损失产生治疗性热。在肿瘤中,药物可以根据环境因素(如pH值变化、酶或磁刺激)以可控的方式释放。通过利用MNPs作为靶向载体和热效应剂的双重作用,研究人员实现了空间选择性、微创治疗。从机制上说,磁诱导热疗将局部温度升高到42-46℃,从而触发活性氧(ROS)的产生、线粒体膜去极化和caspase-3/9的激活——这是BC细胞凋亡的标志。这种综合方法不仅可以将药物集中在肿瘤上,还可以使癌细胞对化疗和放疗敏感,同时最大限度地减少全身毒性。可以使用静态或动态磁场来引导这些颗粒,而它们的表面可以通过化学键合,物理封装或吸附技术来设计。此外,将磁性靶向与基于抗体的识别相结合可以提高特异性和治疗效果。虽然磁化学在BC治疗中的前景是明确的,但正在进行的研究对于优化这些技术并将其充分应用于临床实践至关重要。
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Biochimica et biophysica acta. Reviews on cancer
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