malignant tumors

恶性肿瘤
  • 文章类型: Journal Article
    恶性肿瘤是复杂的全身性慢性疾病,是人类死亡的主要原因之一。靶向治疗,化疗,免疫疗法,和放射疗法是对中晚期恶性肿瘤有效的主流对抗疗法。常规对抗疗法的持续使用导致了不良反应和耐药性,这阻碍了它的功效。作为补充和替代医学的重要组成部分,已发现中药具有抗肿瘤作用,在增强主流对症药物的治疗敏感性方面发挥了重要作用,降低不良事件的发生率和改善免疫相关功能。辅助中药与主流对症药物的联合应用已开始被接受,并逐步应用于抗肿瘤治疗领域。传统天然药物及其活性成分,以及中成药,已被证明在各种恶性肿瘤的治疗中具有优异的治疗效果和良好的安全性。本文重点介绍了上述药物与主流对抗疗法药物结合提高治疗敏感性的作用机制及研究进展,缓解耐药性,减少不良反应,提高身体的免疫功能。鼓励临床开发和使用中药辅助疗法,并为创建更安全,更有效的抗癌药物组合提供思路和信息,详细描述了中草药疗法作为癌症治疗辅助疗法的重要功能。
    Malignant tumors are complex systemic chronic diseases and one of the major causes of human mortality. Targeted therapy, chemotherapy, immunotherapy, and radiotherapy are examples of mainstream allopathic medicine treatments that effective for intermediate and advanced malignant tumors. The ongoing use of conventional allopathic medicine has resulted in adverse responses and drug resistance, which have hampered its efficacy. As an important component of complementary and alternative medicine, Chinese medicine has been found to have antitumor effects and has played an important role in enhancing the therapeutic sensitivity of mainstream allopathic medicine, reducing the incidence of adverse events and improving immune-related functions. The combined application of adjuvant Chinese medicine and mainstream allopathic medicine has begun to gain acceptance and is gradually used in the field of antitumor therapy. Traditional natural medicines and their active ingredients, as well as Chinese patent medicines, have been proven to have excellent therapeutic efficacy and good safety in the treatment of various malignant tumors. This paper focuses on the mechanism of action and research progress of combining the above drugs with mainstream allopathic medicine to increase therapeutic sensitivity, alleviate drug resistance, reduce adverse reactions, and improve the body\'s immune function. To encourage the clinical development and use of Chinese herb adjuvant therapy as well as to provide ideas and information for creating safer and more effective anticancer medication combinations, the significant functions of Chinese herb therapies as adjuvant therapies for cancer treatment are described in detail.
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  • 文章类型: Journal Article
    抗肿瘤光动力疗法(PDT)是一种独特的方式,采用光敏剂(PS),PS-令人兴奋的光,和O2产生细胞毒性氧化剂。由于各种原因,并非任何给定肿瘤中的所有恶性细胞都会屈服于PDT攻击。作者先前的研究表明,诱导型NO合酶(iNOS/NOS2)的一氧化氮(NO)在肿瘤细胞抗性以及刺激存活细胞的迁移/侵袭性方面起着关键作用。iNOS是与这些作用有关的唯一NOS同工型。重要的是,在这方面,来自应激上调的iNOS的NO比来自先前存在的酶的NO更为重要。更大的NO依赖性抗性,迁移,并观察到至少三种不同的癌细胞系的侵袭,这被iNOS活性抑制剂减弱,没有清除剂,或iNOS转录抑制剂。从PDT靶向细胞扩散的NO也刺激非靶向旁观者细胞的迁移/侵袭能力。除非采取适当措施,所有这些效应都可能严重影响临床PDT疗效.这里,我们将回顾PDT的这些负面副作用的具体例子,以及它们如何被佐剂如NO清除剂或iNOS活性或表达抑制剂抑制。
    Anti-tumor photodynamic therapy (PDT) is a unique modality that employs a photosensitizer (PS), PS-exciting light, and O2 to generate cytotoxic oxidants. For various reasons, not all malignant cells in any given tumor will succumb to a PDT challenge. Previous studies by the authors revealed that nitric oxide (NO) from inducible NO synthase (iNOS/NOS2) plays a key role in tumor cell resistance and also stimulation of migratory/invasive aggressiveness of surviving cells. iNOS was the only NOS isoform implicated in these effects. Significantly, NO from stress-upregulated iNOS was much more important in this regard than NO from preexisting enzymes. Greater NO-dependent resistance, migration, and invasion was observed with at least three different cancer cell lines, and this was attenuated by iNOS activity inhibitors, NO scavengers, or an iNOS transcriptional inhibitor. NO diffusing from PDT-targeted cells also stimulated migration/invasion potency of non-targeted bystander cells. Unless counteracted by appropriate measures, all these effects could seriously compromise clinical PDT efficacy. Here, we will review specific examples of these negative side effects of PDT and how they might be suppressed by adjuvants such as NO scavengers or inhibitors of iNOS activity or expression.
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  • 文章类型: Journal Article
    目的:FAT10,一种泛素样修饰蛋白,影响细胞凋亡,DNA损伤反应和肿瘤生长,对癌症预后的影响尚不清楚。方法:我们通过系统评价和荟萃分析,回顾了FAT10表达对恶性肿瘤预后的影响。包括PubMed截至2023年9月的研究,EMBASE和WebofScience。结果:从涉及2513例患者的18项研究中,FAT10过表达显著降低了各种肿瘤的总体生存率和无病生存率。表明与晚期疾病阶段的相关性,分化差,淋巴结转移和较大的肿瘤大小。结论:FAT10的过表达提示在癌症中具有负预后价值,值得进一步调查。PROSPERO注册号:CRD42023431287。
    这项研究研究了一种叫做FAT10的蛋白质,它与细胞的行为有关,包括癌细胞如何生长和存活。它分析了以前的研究,看看癌症患者中高水平的FAT10是否可以帮助预测他们的癌症有多严重以及它可能如何进展。在回顾了涉及2513名患者的18项研究后,我们发现细胞中含有更多FAT10的患者往往前景更差,包括更高的癌症复发机会和更短的整体生存时间。这种模式存在于不同类型的癌症中。我们的研究结果表明,测量FAT10水平可能有助于医生更好地了解患者的癌症并选择最佳治疗方法。然而,需要更多的研究来证实我们的结果.
    Aim: FAT10, a ubiquitin-like modifier protein, influences apoptosis, DNA damage response and tumor growth, with unclear effects on cancer prognosis. Methods: We reviewed FAT10 expression\'s impact on malignancy prognosis through a systematic review and meta-analysis, including studies up to September 2023 from PubMed, EMBASE and Web of Science. Results: From 18 studies involving 2513 patients, FAT10 overexpression significantly reduced overall and disease-free survival across various tumors, indicating correlations with advanced disease stage, poor differentiation, lymph node metastasis and larger tumor size. Conclusion: FAT10\'s overexpression suggests a negative prognostic value in cancer, meriting further investigation.PROSPERO Registration Number: CRD42023431287.
    This study investigated a protein called FAT10, which is involved in how cells behave, including how cancer cells grow and survive. It analyzed previous research to see if high levels of FAT10 in patients with cancer can help predict how serious their cancer is and how it might progress. After reviewing 18 studies involving 2513 patients, we found that patients with more FAT10 in their cells often had a worse outlook, including a higher chance of the cancer returning and a shorter overall survival time. This pattern existed for different types of cancer. Our findings suggest that measuring FAT10 levels could be helpful for doctors to better understand a patient\'s cancer and choose the best treatment. However, more studies are needed to confirm our results.
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  • 文章类型: Journal Article
    肿瘤休眠是恶性细胞生长和发育的一个阶段,是恶性细胞的生物学特征之一。涉及休眠肿瘤细胞在静止状态和增殖状态之间的复杂转变对肿瘤根除提出了挑战。本文探讨了肿瘤休眠的生物学特征和分子机制,并重点介绍了新兴的治疗方法。讨论的策略有望针对恶性肿瘤具有创新的临床潜力。了解休眠机制可以帮助为恶性肿瘤的诊断和治疗提供有价值的见解,以推进与这一世界问题的斗争。
    Tumor dormancy is a stage in the growth and development of malignant cells and is one of the biological characteristics of malignant cells. Complex transitions involving dormant tumor cells between quiescent and proliferative states pose challenges for tumor eradication. This paper explores the biological features and molecular mechanisms of tumor dormancy and highlights emerging therapies. The strategies discussed promise innovative clinical potential against malignant tumors. Understanding the mechanisms of dormancy can help provide valuable insights into the diagnosis and treatment of malignant tumors to advance the fight against this world problem.
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  • 文章类型: Journal Article
    背景:非副肿瘤性天疱疮患者的恶性肿瘤发病率增加,尽管尚未对全球流行病学进行系统分析。
    目的:探讨与恶性肿瘤相关的各类非副肿瘤性天疱疮的流行病学特征。
    方法:检索了从建立到2023年10月20日的5个数据库。STATASE17用于数据分析。子组,元回归,和敏感性分析用于评估合并研究的异质性.
    结果:我们的荟萃分析中纳入了来自16项研究的6679名参与者。诊断为天疱疮的患者中肿瘤的总患病率为8%。寻常型天疱疮患者的患病率为7%,10%的天疱疮患者,在被诊断为其他类型天疱疮的个体中,占12%。亚洲的患病率为8%,11%在欧洲和8%在北美。从特定国家的角度来看,来自以色列的天疱疮患者,希腊,德国的肿瘤患病率更高,为11%。此外,当按研究期的持续时间分类时,在为期10到20年的研究中观察到最高的患病率,在11%。
    结论:这些发现证明了非副肿瘤性天疱疮患者中恶性肿瘤的发生率和患病率。可以实现早期发现和干预,然后降低死亡率。
    BACKGROUND: The incidence of malignant tumors has increased in patients with non-paraneoplastic pemphigus, although there has been no systematic analysis of global epidemiology.
    OBJECTIVE: To explore the epidemiology of various types of non-paraneoplastic pemphigus associated with malignant tumors.
    METHODS: Five databases from establishment through October 20, 2023, were searched. STATA SE 17 was used for the data analysis. Subgroup, meta-regression, and sensitivity analyses were used to evaluate the heterogeneity of pooled studies.
    RESULTS: A total of 6679 participants were included in our meta-analysis from 16 studies. The aggregated prevalence of tumors in patients diagnosed with pemphigus was 8%. The prevalence was 7% in patients with pemphigus vulgaris, 10% in those with pemphigus foliaceus, and 12% in individuals diagnosed with other types of pemphigus. The prevalence was 8% in Asia, 11% in Europe, and 8% in North America. From a country-specific perspective, patients with pemphigus from Israel, Greece, and Germany exhibited a higher prevalence of tumors at 11%. Furthermore, when categorized by the duration of the study period, the highest prevalence was observed in studies spanning 10 to 20 years, at 11%.
    CONCLUSIONS: These findings demonstrate the incidence and prevalence of malignant tumors in patients with non-paraneoplastic pemphigus, which may achieve early detection and intervention, and then reduce mortality rates.
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  • 文章类型: Case Reports
    恶性外周神经鞘瘤(MPNSTs)是一组复杂的恶性肿瘤,起源于神经细胞或良性外周神经鞘瘤,常见于四肢等大丛/神经根部位,头部,和脖子。起源于输尿管的恶性外周神经鞘瘤极为罕见。在这里,我们报道了一例63岁的右输尿管恶性周围神经鞘瘤患者,该患者接受了腹腔镜下右肾和输尿管根治性切除术。患者还患有5期慢性肾病(CKD)。因此,未考虑化疗和放疗.随访期间未见肿瘤复发。
    Malignant peripheral nerve sheath tumors (MPNSTs) are a complex group of malignant tumors originating from nerve cells or benign peripheral nerve sheath tumors and are commonly found in major plexus/nerve root sites such as the limbs, head, and neck. Malignant peripheral nerve sheath tumors originating in the ureter are extremely rare. Herein, we report the case of a 63-year-old patient with a malignant peripheral nerve sheath tumor of the right ureter who underwent laparoscopic radical resection of the right kidney and ureter. The patient also had stage 5 chronic kidney disease (CKD). Therefore, chemotherapy and radiotherapy were not considered. No tumor recurrence was observed during the follow-up period.
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  • 文章类型: Journal Article
    背景:巨噬细胞移动抑制因子(MIF)的作用最近在癌症研究中引起了相当大的关注;尽管如此,当前调查提供的见解仍然受到限制。我们的主要目标是研究其在泛癌症领域中的作用和潜在机制。
    方法:我们使用全面的泛癌症批量测序数据和在线网络工具来调查MIF表达与患者预后之间的关联。基因组不稳定性,癌细胞的干细胞,DNA损伤修复,和免疫浸润。此外,我们使用单细胞数据集验证了MIF表达与M0巨噬细胞之间的关系,SpatialDB数据库,和荧光染色。此外,我们使用ROC绘图仪评估治疗反应.
    结果:我们观察到多种癌症类型中MIF表达的上调。值得注意的是,MIF水平升高与基因组稳定性下降相关.我们发现MIF表达增加和错配修复基因表达增加之间存在显著相关性,干性特征,以及跨越不同恶性肿瘤的同源重组基因。随后,通过使用估计和细胞因子结果的分析,我们揭示了MIF参与免疫抑制。然后,我们验证了MIF是参与肿瘤免疫的M0巨噬细胞的标志.我们的研究表明与其他免疫抑制细胞群和CD8+T细胞的抑制有关。此外,我们对三组不同的治疗应答者和非应答者治疗前后的MIF表达进行了比较分析.有趣的是,我们发现膀胱尿路上皮癌和卵巢癌在特定治疗干预后MIF表达模式存在显著差异.
    结论:全面的泛癌症分析显示M0巨噬细胞中MIF的显著富集,对肿瘤相关的免疫抑制和复杂的DNA修复机制产生深远的影响。
    BACKGROUND: The role of the macrophage migration inhibitory factor (MIF) has recently attracted considerable attention in cancer research; nonetheless, the insights provided by current investigations remain constrained. Our main objective was to investigate its role and the latent mechanisms within the pan-cancer realm.
    METHODS: We used comprehensive pan-cancer bulk sequencing data and online network tools to investigate the association between MIF expression and patient prognosis, genomic instability, cancer cell stemness, DNA damage repair, and immune infiltration. Furthermore, we validated the relationship between MIF expression and M0 macrophages using single-cell datasets, the SpatialDB database, and fluorescence staining. Additionally, we assessed the therapeutic response using the ROC plotter tool.
    RESULTS: We observed the upregulation of MIF expression across numerous cancer types. Notably, elevated MIF levels were associated with a decline in genomic stability. We found a significant correlation between increased MIF expression and increased expression of mismatch repair genes, stemness features, and homologous recombination genes across diverse malignancies. Subsequently, through an analysis using ESTIMATE and cytokine results, we revealed the involvement of MIF in immune suppression. Then, we validated MIF as a hallmark of the M0 macrophages involved in tumor immunity. Our study suggests an association with other immune-inhibitory cellular populations and restraint of CD8 + T cells. In addition, we conducted a comparative analysis of MIF expression before and after treatment in three distinct sets of therapy responders and non-responders. Intriguingly, we identified notable disparities in MIF expression patterns in bladder urothelial carcinoma and ovarian cancer following particular therapeutic interventions.
    CONCLUSIONS: Comprehensive pan-cancer analysis revealed notable enrichment of MIF within M0 macrophages, exerting a profound influence on tumor-associated immunosuppression and the intricate machinery of DNA repair.
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  • 文章类型: Journal Article
    E3泛素连接酶包含泛素化催化酶家族,已被广泛研究,被认为是涉及各种疾病的泛素-蛋白酶体系统的关键成分。泛素-蛋白连接酶E3组分n-识别5(UBR5)是一种E3泛素-蛋白连接酶,最近引起了相当大的兴趣。最近的研究表明,UBR5经历高频突变,染色体扩增,和/或各种恶性肿瘤表达过程中的异常。这些改变与恶性肿瘤的生物学行为和预后相关,如肿瘤侵袭,转移,和对化学治疗剂的抗性。本研究旨在全面阐明UBR5的生物学功能及其在胃肠道肿瘤中的作用和相关性。此外,本文阐述了探索胃肠道肿瘤的分子机制和开发针对其治疗的靶向治疗策略的科学依据。
    E3 ubiquitin ligases comprise a family of ubiquitination-catalyzing enzymes that have been extensively researched and are considered crucial components of the ubiquitin-proteasome system involved in various diseases. The ubiquitin-protein ligase E3 component n-recognition 5 (UBR5) is an E3 ubiquitin-protein ligase that has garnered considerable interest of late. Recent studies demonstrate that UBR5 undergoes high-frequency mutations, chromosomal amplification, and/or abnormalities during expression of various malignant tumors. These alterations correlate with the biological behaviors and prognoses of malignancies, such as tumor invasion, metastasis, and resistance to chemotherapeutic agents. This study aimed to comprehensively elucidate the biological functions of UBR5, and its role and relevance in the context of gastrointestinal cancers. Furthermore, this article expounds a scientific basis to explore the molecular mechanisms underlying gastrointestinal cancers and developing targeted therapeutic strategies for their remediation.
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  • 文章类型: Journal Article
    涎腺恶性肿瘤很少见。然而,它们的形态重叠和难以区分良性和恶性,使得诊断这些疾病是一项具有挑战性的任务。这些疾病分布的地理差异在文献中有很好的记载。这项研究旨在回顾考虑新的WHO2022分类的苏丹患者恶性唾液腺肿瘤的组织学和流行病学变化。
    这项回顾性研究包括我们实验室2014年至2022年期间的恶性唾液腺肿瘤。有关临床数据的信息,习惯,地理分布,病理诊断,从我们的档案中检索肿瘤的持续时间和部位.由唾液腺专家检查了模棱两可的病例。使用IBMSPSS29进行数据分析。
    这项研究包括107例恶性唾液腺肿瘤,在此期间,占实验室唾液腺肿瘤总数的54%。在这项研究中,47.7%的患者是女性,52.3%是男性,患者的平均年龄为50±15.7岁.(30%)的患者来自该国的中部地区。最常见的涎腺恶性肿瘤是粘液表皮样癌,占17%。发现腭是最常见的部位,因为38%的恶性唾液腺肿瘤发生在该部位。
    该研究发现,在苏丹,唾液腺肿瘤的百分比很高,这表明存在地理差异。
    UNASSIGNED: Malignant salivary gland tumors are rare. However, their morphological overlap and difficulty to differentiate benign from malignant makes diagnosing such diseases a challenging task. Geographical variation in distribution of these diseases is well documented in the literature. This study aims to review the histological and epidemiological variations of malignant salivary gland tumors in Sudanese patients considering the new WHO 2022 classification.
    UNASSIGNED: This retrospective study included malignant salivary gland tumours in our lab spanning from the period of 2014 to 2022. Information about clinical data, habits, geographical distribution, pathological diagnosis, duration and sites of tumors were retrieved from our archives. Equivocal cases were checked by a salivary gland expert. Data analysis was performed using IBM SPSS 29.
    UNASSIGNED: This study included 107 cases of malignant salivary gland tumours, representing 54 % of the total number of salivary gland tumours in the lab during that period. 47.7 % of the patients in this study were females and 52.3 % were males, the mean age of patients was 50 ± 15.7 years. (30 %) of the patients were from the central region of the country. The most common malignant salivary gland tumor was the Mucoepidermoid carcinoma accounting for 17 %. The palate was found to be the most common site as 38 % of malignant salivary gland tumors occurred in this site.
    UNASSIGNED: The study found a high percentage of salivary gland tumours in the Sudan suggesting geographical differentiation.
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  • 文章类型: Journal Article
    背景:手术是目前对不涉及任何特定器官的腹膜后肿瘤的唯一有效治疗方法。使用机器人切除良性和恶性腹膜后肿瘤被认为是安全可行的。然而,没有足够的证据来确定机器人腹膜后肿瘤切除术(RMBRs)是否优于开放式腹膜后恶性切除术(OMBRs).这项研究比较了机器人切除良性和恶性腹膜后肿瘤与开放切除相同大小肿瘤的短期结果。
    方法:该研究比较了2018年3月至2022年12月期间接受机器人切除术(n=54)和开放切除术(n=54)的腹膜后肿瘤患者的人口统计学和结局。进行1:1匹配分析以确保公平的比较。
    结果:研究发现RBMR导致手术时间(OT)减少,估计失血量(EBM),与OBMR相比,术后住院时间(PSH)。此外,RBMR降低了EBL,PHS,恶性肿瘤累及主要血管的患者为OT。肿瘤大小无明显差异,输血率,RBMR组和OBMR组之间的发病率。
    结论:将RMBR与OMBR进行比较时,据观察,人民币R与较低(EBL)相关,术后住院时间短(PHS),并减少了特定组的良性和恶性肿瘤患者的手术时间(OT)。
    BACKGROUND: Surgery is currently the only effective treatment for retroperitoneal tumors that do not involve any specific organ. The use of robots for removing both benign and malignant retroperitoneal tumors is considered safe and feasible. However, there is insufficient evidence to determine whether robotic retroperitoneal tumor resection (RMBRs) is superior to open retroperitoneal malignant resection (OMBRs). This study compares the short-term outcomes of robotic excision of benign and malignant retroperitoneal tumors with open excision of the same-sized tumors.
    METHODS: The study compared demographics and outcomes of patients who underwent robotic resection (n = 54) vs open resection (n = 54) of retroperitoneal tumors between March 2018 and December 2022. A 1:1 matching analysis was conducted to ensure a fair comparison.
    RESULTS: The study found that RBMRs resulted in reduced operative time (OT), estimated blood loss (EBM), and postoperative hospital stay (PSH) when compared to OBMRs. Additionally, RBMRs reduced EBL, PHS, and OT for patients with malignant tumor involvement in major vessels. No significant differences were found in tumor size, blood transfusion rate, and morbidity rate between the RBMRs and OBMRs groups.
    CONCLUSIONS: When comparing RMBRs to OMBRs, it was observed that RMBR was associated with lower (EBL), shorter postoperative hospital stays (PHS), and reduced operative time (OT) in a specific group of patients with both benign and malignant tumors.
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