• 文章类型: Journal Article
    设计和预测新的药物靶标以加速治疗代谢功能障碍相关脂肪性肝炎(MASH)肝硬化的药物发现是一项具有挑战性的任务。存在叠加(嵌套)和共同发生的临床和组织学表型,即MASH和肝硬化,可以部分解释这一点。因此,在这种情况下,每个子表型都有自己的一套病理生理机制,触发器,和过程。这里,我们使用基因/蛋白质和集合富集分析来预测MASH肝硬化治疗的药物途径。我们的发现表明,MASH肝硬化的发病机理可以通过多种扰动来解释,同时,和重叠的分子过程。在这种情况下,每个子表型都有自己的一套病理生理机制,触发器,和过程。因此,我们使用系统生物学建模来提供证据,证明MASH和肝硬化矛盾地呈现独特和独特以及常见的疾病机制,包括分子靶标的网络。更重要的是,途径分析揭示了与免疫反应调节一致的简单结果,细胞周期控制,和表观遗传调控。总之,选择MASH肝硬化的潜在治疗方法应通过更好地了解潜在的生物学过程和逐渐损害肝组织及其潜在结构的分子扰动来指导。MASH患者的治疗选择可能不一定是MASH肝硬化的选择。因此,疾病的生物学和与其自然史相关的过程必须处于决策过程的最前沿。
    Designing and predicting novel drug targets to accelerate drug discovery for treating metabolic dysfunction-associated steatohepatitis (MASH)-cirrhosis is a challenging task. The presence of superimposed (nested) and co-occurring clinical and histological phenotypes, namely MASH and cirrhosis, may partly explain this. Thus, in this scenario, each sub-phenotype has its own set of pathophysiological mechanisms, triggers, and processes. Here, we used gene/protein and set enrichment analysis to predict druggable pathways for the treatment of MASH-cirrhosis. Our findings indicate that the pathogenesis of MASH-cirrhosis can be explained by perturbations in multiple, simultaneous, and overlapping molecular processes. In this scenario, each sub-phenotype has its own set of pathophysiological mechanisms, triggers, and processes. Therefore, we used systems biology modeling to provide evidence that MASH and cirrhosis paradoxically present unique and distinct as well as common disease mechanisms, including a network of molecular targets. More importantly, pathway analysis revealed straightforward results consistent with modulation of the immune response, cell cycle control, and epigenetic regulation. In conclusion, the selection of potential therapies for MASH-cirrhosis should be guided by a better understanding of the underlying biological processes and molecular perturbations that progressively damage liver tissue and its underlying structure. Therapeutic options for patients with MASH may not necessarily be of choice for MASH cirrhosis. Therefore, the biology of the disease and the processes associated with its natural history must be at the forefront of the decision-making process.
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  • 文章类型: Journal Article
    胸腺上皮肿瘤(TET)是罕见的前纵隔肿瘤,由胸腺上皮细胞引起。尽管手术是可切除的TET的首选治疗方法,不能切除或复发的晚期TET的选择仅限于铂类化疗.TET治疗的发展以靶向治疗和免疫疗法的显着进步为标志,特别是抗血管生成剂和免疫检查点抑制剂(ICIs)。虽然单一疗法显示出一定的疗效,联合治疗策略的制定对于改善患者预后至关重要.这篇综述巩固了抗血管生成疗法和ICIs的进展,强调TET联合疗法的发展。更进一步,我们特别讨论基于这些进展的新的一线策略,并强调探索新的治疗方法,如抗体-药物偶联物,用于TET的免疫调节药物和基于细胞因子的药物。机械上,TETs的分子特征与临床诊断和靶向治疗相结合,并讨论了TET的免疫表型及其对免疫治疗疗效和安全性的影响。因此,这篇综述系统的发展,在处理的地形景观,整合相应的分子和免疫机制,旨在为TET的治疗提供新的参考。
    Thymic epithelial tumors (TETs) are rare neoplasms of the anterior mediastinum that arise from thymic epithelial cells. Although surgery is the preferred treatment for resectable TETs, the options for unresectable or recurrent advanced-stage TETs are limited beyond platinum-based chemotherapy. The evolving landscape of TET treatments is marked by significant advancements in targeted therapies and immunotherapies, particularly with anti-angiogenic agents and immune checkpoint inhibitors (ICIs). While monotherapies demonstrated certain efficacy, the development of combination strategies is vital for improving patient outcomes. This review consolidates progress in anti-angiogenic therapies and ICIs, emphasizing the evolution of combination therapies of TETs. Furtherly, we particularly discuss new first-line strategies based on these advancements and emphasizes exploring novel treatments like antibody-drug conjugates, immunomodulatory drugs and cytokine-based agents for TETs. Mechanistically, the molecular features of TETs integrated with clinical diagnosis and targeted therapy, and immunophenotyping of TETs along with its impact on the efficacy and safety of immunotherapy are discussed. Thus, this review systemizes the development in the treatment landscape of TETs, integrating the corresponding molecular and immune mechanisms, aiming to provide new references for the treatment of TETs.
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  • 文章类型: Journal Article
    对靶向治疗的抗性仍然是黑色素瘤的主要临床挑战。为了揭示抵抗力量机制,我们对接受BRAFi/MEKi治疗的耐药和反应性肿瘤患者的细针抽吸物进行单细胞RNA测序.在耐药肿瘤中最显著表达的基因是POSTN,预测向与靶向治疗抵抗(TTR)相关的巨噬细胞群发出信号。因此,治疗后疾病进展快的患者的肿瘤表现出高POSTN表达水平和大量TTR巨噬细胞。POSTN将人巨噬细胞极化为TTR表型,并在黑色素瘤小鼠模型中促进对靶向治疗的抗性,这与肿瘤内巨噬细胞的表型变化有关。最后,极化的TTR巨噬细胞通过黑色素瘤细胞上的CD44受体表达直接保护人黑色素瘤细胞免受MEKi诱导的杀伤。因此,干扰TTR巨噬细胞的保护活性可能提供克服黑色素瘤靶向治疗抵抗的策略.
    Resistance to targeted therapy remains a major clinical challenge in melanoma. To uncover resistance mechanisms, we perform single-cell RNA sequencing on fine-needle aspirates from resistant and responding tumors of patients undergoing BRAFi/MEKi treatment. Among the genes most prominently expressed in resistant tumors is POSTN, predicted to signal to a macrophage population associated with targeted therapy resistance (TTR). Accordingly, tumors from patients with fast disease progression after therapy exhibit high POSTN expression levels and high numbers of TTR macrophages. POSTN polarizes human macrophages toward a TTR phenotype and promotes resistance to targeted therapy in a melanoma mouse model, which is associated with a phenotype change in intratumoral macrophages. Finally, polarized TTR macrophages directly protect human melanoma cells from MEKi-induced killing via CD44 receptor expression on melanoma cells. Thus, interfering with the protective activity of TTR macrophages may offer a strategy to overcome resistance to targeted therapy in melanoma.
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  • 文章类型: Journal Article
    BRAF是一种丝氨酸-苏氨酸激酶,与MAPK信号级联的调节有关。BRAF突变驱动的激活发生在约2-4%的未治疗的非小细胞癌(NSCLCs)中。在对受体酪氨酸激酶抑制剂(TKIs)具有获得性抗性的肿瘤中也经常观察到BRAF上调。
    这篇综述描述了BRAF突变的谱及其功能作用,讨论了BRAFp.V600和非V600突变的NSCLC的治疗选择,并确定当前知识中的一些差距。
    联合使用BRAF/MEK抑制剂通常会产生显着的,虽然通常是短期的,对BRAFV600(1类)突变的非小细胞肺癌患者的益处。没有针对BRAF2类(L597,K601,G464,G469A/V/R/S,融合,等。)和3类(D594、G596、G466等。)突变体,占BRAF驱动的NSCLCs的三分之二。与使用免疫疗法治疗BRAF突变的NSCLC有关的许多重要问题值得进一步研究。在NSCLC中BRAF突变的罕见发生是由肺癌疾病的高总发病率补偿的;因此,BRAF相关NSCLC的临床研究是可行的。
    UNASSIGNED: BRAF is a serine-threonine kinase implicated in the regulation of MAPK signaling cascade. BRAF mutation-driven activation occurs in approximately 2-4% of treatment-naive non-small cell carcinomas (NSCLCs). BRAF upregulation is also often observed in tumors with acquired resistance to receptor tyrosine kinase inhibitors (TKIs).
    UNASSIGNED: This review describes the spectrum of BRAF mutations and their functional roles, discusses treatment options available for BRAF p.V600 and non-V600 mutated NSCLCs, and identifies some gaps in the current knowledge.
    UNASSIGNED: Administration of combined BRAF/MEK inhibitors usually produces significant, although often a short-term, benefit to NSCLC patients with BRAF V600 (class 1) mutations. There are no established treatments for BRAF class 2 (L597, K601, G464, G469A/V/R/S, fusions, etc.) and class 3 (D594, G596, G466, etc.) mutants, which account for up to two thirds of BRAF-driven NSCLCs. Many important issues related to the use of immune therapy for the management of BRAF-mutated NSCLC deserve further investigation. The rare occurrence of BRAF mutations in NSCLC is compensated by high overall incidence of lung cancer disease; therefore, clinical studies on BRAF-associated NSCLC are feasible.
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  • 文章类型: Journal Article
    骨癌疼痛(BCP)深刻影响患者的生活质量,需要更有效的疼痛管理策略。本系统综述的目的是研究炎性细胞因子作为BCP潜在分子靶标的作用。在PubMed中对骨癌疼痛研究的动物啮齿动物模型进行了系统的搜索,Scopus,和WebofScience。使用SYRCLERoB工具评估方法学质量和偏倚风险。25条符合纳入标准,包括研究与BCP中炎症细胞因子相关的分子靶标的动物研究。报告了低至中度的偏倚风险。在23份手稿中的关键发现揭示了上调的经典促炎细胞因子(TNF-α,IL-1β,IL-6,IL-17,IL-18,IL-33)和趋化因子在脊髓,导水管周围灰色,和背根神经节.针对这些细胞因子的干预一致地减轻疼痛行为。此外,已经证明神经胶质细胞,由于它们参与炎症细胞因子的释放,成为BCP的重要贡献者。本系统综述强调了炎性细胞因子作为缓解BCP的潜在分子靶标的重要性。它强调有针对性的干预措施的承诺,并倡导进一步研究,以将这些发现转化为有效的治疗策略。最终,这种方法有可能提高患者的生活质量。
    Bone cancer pain (BCP) profoundly impacts patient\'s quality of life, demanding more effective pain management strategies. The aim of this systematic review was to investigate the role of inflammatory cytokines as potential molecular targets in BCP. A systematic search for animal rodent models of bone cancer pain studies was conducted in PubMed, Scopus, and Web of Science. Methodological quality and risk of bias were assessed using the SYRCLE RoB tool. Twenty-five articles met the inclusion criteria, comprising animal studies investigating molecular targets related to inflammatory cytokines in BCP. A low to moderate risk of bias was reported. Key findings in 23 manuscripts revealed upregulated classic pro-inflammatory cytokines (TNF-α, IL-1β, IL-6, IL-17, IL-18, IL-33) and chemokines in the spinal cord, periaqueductal gray, and dorsal root ganglia. Interventions targeting these cytokines consistently mitigated pain behaviors. Additionally, it was demonstrated that glial cells, due to their involvement in the release of inflammatory cytokines, emerged as significant contributors to BCP. This systematic review underscores the significance of inflammatory cytokines as potential molecular targets for alleviating BCP. It emphasizes the promise of targeted interventions and advocates for further research to translate these findings into effective therapeutic strategies. Ultimately, this approach holds the potential to enhance the patient\'s quality of life.
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  • 文章类型: Journal Article
    靶向治疗对于遗传驱动因素阳性的晚期结直肠癌(CRC)至关重要。随着深度测序技术和新型靶向药物的进步,现有的标准分子病理学检测系统和治疗策略已不能满足对晚期CRC患者进行精心管理的要求.因此,罕见的遗传变异在临床实践中需要诊断和靶向治疗。罕见的基因突变,扩增,和重排通常与预后差和对常规治疗的反应差相关。本文综述了罕见遗传变异的临床诊断和治疗,在包括erb-b2受体酪氨酸激酶2(ERBB2)的基因中,B-Raf原癌基因,丝氨酸/苏氨酸激酶(BRAF),ALK受体酪氨酸激酶/ROS原癌基因1,受体酪氨酸激酶(ALK/ROS1),神经营养受体酪氨酸激酶(NTRKs),ret原癌基因(RET),成纤维细胞生长因子受体2(FGFR2),和表皮生长因子受体(EGFR),以增强对罕见遗传变异患者的理解并确定更准确的个性化治疗方法。
    Targeted therapy is crucial for advanced colorectal cancer (CRC) positive for genetic drivers. With advances in deep sequencing technology and new targeted drugs, existing standard molecular pathological detection systems and therapeutic strategies can no longer meet the requirements for careful management of patients with advanced CRC. Thus, rare genetic variations require diagnosis and targeted therapy in clinical practice. Rare gene mutations, amplifications, and rearrangements are usually associated with poor prognosis and poor response to conventional therapy. This review summarizes the clinical diagnosis and treatment of rare genetic variations, in genes including erb-b2 receptor tyrosine kinase 2 (ERBB2), B-Raf proto-oncogene, serine/threonine kinase (BRAF), ALK receptor tyrosine kinase/ROS proto-oncogene 1, receptor tyrosine kinase (ALK/ROS1), neurotrophic receptor tyrosine kinases (NTRKs), ret proto-oncogene (RET), fibroblast growth factor receptor 2 (FGFR2), and epidermal growth factor receptor (EGFR), to enhance understanding and identify more accurate personalized treatments for patients with rare genetic variations.
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  • 文章类型: Journal Article
    Ferroptosis,一种受调节的细胞死亡形式,与铁依赖性脂质过氧化密切相关。最近的证据强烈支持铁凋亡的诱导作为治疗对常规疗法有抗性的癌症的有希望的策略。铁凋亡调节的关键参与者是铁凋亡抑制蛋白1(FSP1),其通过促进辅酶Q10的抗氧化剂形式的产生来促进癌细胞抗性。值得注意的是,FSP1独立于谷胱甘肽(GSH)和谷胱甘肽过氧化物酶-4途径赋予铁死亡抗性。因此,靶向FSP1以削弱其对铁凋亡的抑制作用可能是治疗难治性癌症的可行策略。这篇综述旨在阐明铁死亡的分子机制,FSP1抑制铁凋亡的具体途径以及FSP1抑制剂对癌细胞的影响。
    Ferroptosis, a regulated form of cell death, is intricately linked to iron‑dependent lipid peroxidation. Recent evidence strongly supports the induction of ferroptosis as a promising strategy for treating cancers resistant to conventional therapies. A key player in ferroptosis regulation is ferroptosis suppressor protein 1 (FSP1), which promotes cancer cell resistance by promoting the production of the antioxidant form of coenzyme Q10. Of note, FSP1 confers resistance to ferroptosis independently of the glutathione (GSH) and glutathione peroxidase‑4 pathway. Therefore, targeting FSP1 to weaken its inhibition of ferroptosis may be a viable strategy for treating refractory cancer. This review aims to clarify the molecular mechanisms underlying ferroptosis, the specific pathway by which FSP1 suppresses ferroptosis and the effect of FSP1 inhibitors on cancer cells.
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  • 文章类型: Journal Article
    口服几种活性成分的联合治疗是癌症的一种流行的临床治疗方法。然而,传统方法便利性差,安全性较低,和病人的低效率。传统制药技术与先进物质转化方法的结合可以为这一问题提供新的解决方案。在这项研究中,一种新的混合薄膜是通过同轴电喷雾产生的,然后是铸造过程。薄膜由在聚乙烯吡咯烷酮(PVP)薄膜基质中的Reglan和5-氟尿嘧啶(5-FU)负载的乙酸纤维素(CA)核壳颗粒组成。这些膜的显微观察表明固体横截面负载有核壳颗粒。X射线衍射和傅立叶变换红外测试证实,薄膜中加载的Reglan和5-FU显示出非晶态和与聚合物基体的良好相容性,即,PVP和CA,分别。体外溶出测试表明,薄膜能够提供所需的异步双药物递送,快速释放Reglan,和5-FU的持续释放。控释机制被证明是Reglan的侵蚀机制和5-FU的典型Fickian扩散机制。本文报道的方案开创了一种制造装载多种药物的生物材料的新方法,每个都有自己的受控释放行为,用于协同癌症治疗。
    Combination therapy with oral administration of several active ingredients is a popular clinical treatment for cancer. However, the traditional method has poor convenience, less safety, and low efficiency for patients. The combination of traditional pharmaceutical techniques and advanced material conversion methods can provide new solutions to this issue. In this research, a new kind of hybrid film was created via coaxial electrospraying, followed by a casting process. The films were composed of Reglan and 5-fluorouracil (5-FU)-loaded cellulose acetate (CA) core-shell particles in a polyvinylpyrrolidone (PVP) film matrix. Microscopic observations of these films demonstrated a solid cross section loaded with core-shell particles. X-ray diffraction and Fourier-transform infrared tests verified that the Reglan and 5-FU loaded in the films showed amorphous states and fine compatibilities with the polymeric matrices, i.e., PVP and CA, respectively. In vitro dissolution tests indicated that the films were able to provide the desired asynchronous dual-drug delivery, fast release of Reglan, and sustained release of 5-FU. The controlled release mechanisms were shown to be an erosion mechanism for Reglan and a typical Fickian diffusion mechanism for 5-FU. The protocols reported herein pioneer a new approach for fabricating biomaterials loaded with multiple drugs, each with its own controlled release behavior, for synergistic cancer treatment.
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  • 文章类型: Journal Article
    背景:胶质瘤被认为是中枢神经系统最常见的原发性恶性肿瘤。虽然传统的治疗方法没有取得令人满意的效果,最近,针对神经胶质瘤的靶向治疗已显示出有希望的疗效.然而,由于靶向治疗的单一靶点性质,传统的靶向治疗是无效的;因此,迫切需要新的治疗靶点。
    方法:神经胶质瘤患者的基因表达数据来自GEO(GSE4290,GSE50161),TCGA和CGGA数据库。接下来,从上述数据库获得的上调基因进行交叉分析,最后,10个重叠基因(BIRC5、FOXM1、EZH2、CDK1、KIF11、KIF4A、NDC80,PBK,最终筛选出RRM2和TOP2A),只有KIF4A的表达与神经胶质瘤患者的临床特征具有最强的相关性。Futher,利用TCGA和CGGA数据库探讨KIF4A表达与胶质瘤预后的相关性。然后,qRT-PCR和Westernblot检测胶质瘤细胞KIF4AmRNA和蛋白表达水平,分别。而靶向KIF4A的小分子抑制剂WZ-3146,通过Cmap分析进行筛选。随后,用MTT法测定KIF4A敲低或WZ-3146治疗对胶质瘤的影响,EdU,集落形成测定和Transwell测定。最终,进行GSEA富集分析,发现神经胶质瘤中的凋亡途径可以被KIF4A调节,此外,流式细胞术和Westernblot检测WZ-3146对胶质瘤细胞凋亡的影响。
    结果:在本研究中,我们证实KIF4A在神经胶质瘤中异常过度表达。此外,KIF4A过表达是胶质瘤预后的关键指标;抑制KIF4A的表达可以抑制胶质瘤的进展。我们还发现KIF4A的小分子抑制剂WZ-3146,可以诱导胶质瘤细胞凋亡并表现出抗胶质瘤作用。
    结论:结论:这些观察结果表明,靶向KIF4A可以抑制神经胶质瘤的进展.随着进一步的研究,KIF4A的小分子抑制剂WZ-3146,可与其他分子靶向药物联合协同抑制胶质瘤进展。
    BACKGROUND: Glioma is considered the most common primary malignant tumor of the central nervous system. Although traditional treatments have not achieved satisfactory outcomes, recently, targeted therapies for glioma have shown promising efficacy. However, due to the single-target nature of targeted therapy, traditional targeted therapies are ineffective; thus, novel therapeutic targets are urgently needed.
    METHODS: The gene expression data for glioma patients were derived from the GEO (GSE4290, GSE50161), TCGA and CGGA databases. Next, the upregulated genes obtained from the above databases were cross-analyzed, finally, 10 overlapping genes (BIRC5, FOXM1, EZH2, CDK1, KIF11, KIF4A, NDC80, PBK, RRM2, and TOP2A) were ultimately screened and only KIF4A expression has the strongest correlation with clinical characteristics in glioma patients. Futher, the TCGA and CGGA database were utilized to explore the correlation of KIF4A expression with glioma prognosis. Then, qRT-PCR and Western blot was used to detect the KIF4A mRNA and protein expression level in glioma cells, respectively. And WZ-3146, the small molecule inhibitor targeting KIF4A, were screened by Cmap analysis. Subsequently, the effect of KIF4A knockdown or WZ-3146 treatment on glioma was measured by the MTT, EdU, Colony formation assay and Transwell assay. Ultimately, GSEA enrichment analysis was performed to find that the apoptotic pathway could be regulated by KIF4A in glioma, in addition, the effect of WZ-3146 on glioma apoptosis was detected by flow cytometry and Western blot.
    RESULTS: In the present study, we confirmed that KIF4A is abnormally overexpressed in glioma. In addition, KIF4A overexpression is a key indicator of glioma prognosis; moreover, suppressing KIF4A expression can inhibit glioma progression. We also discovered that WZ-3146, a small molecule inhibitor of KIF4A, can induce apoptosis in glioma cells and exhibit antiglioma effects.
    CONCLUSIONS: In conclusion, these observations demonstrated that targeting KIF4A can inhibit glioma progression. With further research, WZ-3146, a small molecule inhibitor of KIF4A, could be combined with other molecular targeted drugs to cooperatively inhibit glioma progression.
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  • 文章类型: Journal Article
    表观遗传失调越来越被视为癌症的标志,包括疾病引发,维持和治疗抵抗。因此,癌症表观遗传疗法的开发和评估取得了进展,揭示了巨大的希望,但也有挑战。三种表观遗传抑制剂在美国被批准,还有更多的人目前正在接受临床研究。在这篇评论中,我们讨论了每个表观遗传药物类别的最新进展及其对治疗的影响,以及强调表观遗传学在癌症中的作用的新见解。
    Epigenetic dysregulation is increasingly appreciated as a hallmark of cancer, including disease initiation, maintenance and therapy resistance. As a result, there have been advances in the development and evaluation of epigenetic therapies for cancer, revealing substantial promise but also challenges. Three epigenetic inhibitor classes are approved in the USA, and many more are currently undergoing clinical investigation. In this Review, we discuss recent developments for each epigenetic drug class and their implications for therapy, as well as highlight new insights into the role of epigenetics in cancer.
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