LC, Lung Cancer

  • 文章类型: Journal Article
    未经证实:舌头图像(颜色,舌头的大小和形状以及颜色,舌苔的厚度和水分含量),根据中医理论反映全身的健康状况,已经在中国广泛使用了数千年。在这里,我们调查了舌象和舌苔微生物组在胃癌(GC)诊断中的价值。
    UNASSIGNED:从2020年5月到2021年1月,我们同时收集了中国328名GC患者(所有新诊断为GC)和304名非胃癌(NGC)参与者的舌象和舌苔样本,和16SrDNA用于表征舌苔样品的微生物组。然后,建立人工智能(AI)深度学习模型,评估舌象和舌苔微生物组在GC诊断中的价值。考虑到舌成像作为诊断工具更方便、更经济,我们于2020年5月至2022年3月在中国进一步开展了一项前瞻性多中心临床研究,招募了来自中国10个中心的937例GC患者和1911例NGC患者,以进一步评估舌象在GC诊断中的作用.此外,我们在另一个独立的外部验证队列中验证了该方法,该队列包括来自7个中心的294例GC患者和521例NGC患者.这项研究在ClinicalTrials.gov注册,NCT01090362。
    未经评估:第一次,我们发现舌象和舌苔微生物组可以作为GC诊断的工具,基于舌象的诊断模型的曲线下面积(AUC)值为0.89。基于舌苔微生物组的模型的AUC值使用属数据达到0.94,使用物种数据达到0.95。前瞻性多中心临床研究结果表明,三种基于舌象的GCs模型的AUC值在内部验证中达到0.88-0.92,在独立外部验证中达到0.83-0.88,显着优于八种血液生物标志物的组合。
    UNASSIGNED:我们的结果表明,舌头图像可作为GC诊断的稳定方法,并且显着优于常规血液生物标志物。我们开发的三种基于舌图像的AI深度学习诊断模型可用于充分区分GC患者和NGC参与者,甚至早期GC和癌前病变,如萎缩性胃炎(AG)。
    未经批准:国家重点研发计划(2021YFA0910100),浙江省中医药科技计划方案(2018ZY006),浙江省医学科技项目(2022KY114,WKJ-ZJ-2104),浙江省上消化道肿瘤研究中心(JBZX-202006),浙江省自然科学基金(HDMY22H160008),浙江省科技项目(2019C03049),国家自然科学基金(82074245,81973634,82204828),中国博士后科学基金(2022M713203)。
    UNASSIGNED: Tongue images (the colour, size and shape of the tongue and the colour, thickness and moisture content of the tongue coating), reflecting the health state of the whole body according to the theory of traditional Chinese medicine (TCM), have been widely used in China for thousands of years. Herein, we investigated the value of tongue images and the tongue coating microbiome in the diagnosis of gastric cancer (GC).
    UNASSIGNED: From May 2020 to January 2021, we simultaneously collected tongue images and tongue coating samples from 328 patients with GC (all newly diagnosed with GC) and 304 non-gastric cancer (NGC) participants in China, and 16 S rDNA was used to characterize the microbiome of the tongue coating samples. Then, artificial intelligence (AI) deep learning models were established to evaluate the value of tongue images and the tongue coating microbiome in the diagnosis of GC. Considering that tongue imaging is more convenient and economical as a diagnostic tool, we further conducted a prospective multicentre clinical study from May 2020 to March 2022 in China and recruited 937 patients with GC and 1911 participants with NGC from 10 centres across China to further evaluate the role of tongue images in the diagnosis of GC. Moreover, we verified this approach in another independent external validation cohort that included 294 patients with GC and 521 participants with NGC from 7 centres. This study is registered at ClinicalTrials.gov, NCT01090362.
    UNASSIGNED: For the first time, we found that both tongue images and the tongue coating microbiome can be used as tools for the diagnosis of GC, and the area under the curve (AUC) value of the tongue image-based diagnostic model was 0.89. The AUC values of the tongue coating microbiome-based model reached 0.94 using genus data and 0.95 using species data. The results of the prospective multicentre clinical study showed that the AUC values of the three tongue image-based models for GCs reached 0.88-0.92 in the internal verification and 0.83-0.88 in the independent external verification, which were significantly superior to the combination of eight blood biomarkers.
    UNASSIGNED: Our results suggest that tongue images can be used as a stable method for GC diagnosis and are significantly superior to conventional blood biomarkers. The three kinds of tongue image-based AI deep learning diagnostic models that we developed can be used to adequately distinguish patients with GC from participants with NGC, even early GC and precancerous lesions, such as atrophic gastritis (AG).
    UNASSIGNED: The National Key R&D Program of China (2021YFA0910100), Program of Zhejiang Provincial TCM Sci-tech Plan (2018ZY006), Medical Science and Technology Project of Zhejiang Province (2022KY114, WKJ-ZJ-2104), Zhejiang Provincial Research Center for Upper Gastrointestinal Tract Cancer (JBZX-202006), Natural Science Foundation of Zhejiang Province (HDMY22H160008), Science and Technology Projects of Zhejiang Province (2019C03049), National Natural Science Foundation of China (82074245, 81973634, 82204828), and Chinese Postdoctoral Science Foundation (2022M713203).
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  • 文章类型: Journal Article
    内皮细胞(ECs)在肿瘤进展中起重要作用。目前,抗血管生成治疗的主要靶点是血管内皮生长因子(VEGF)通路。一些患者确实从抗VEGF/VEGFR治疗中获益;然而,大量患者在治疗后没有反应或获得耐药性。此外,抗VEGF/VEGFR治疗可能由于其对正常ECs的作用而导致肾毒性和心血管相关的副作用。因此,有必要确定对肿瘤ECs具有特异性并可应用于各种癌症类型的靶标。我们整合了来自六种癌症类型的单细胞RNA测序数据,并构建了一个多癌症EC图谱以解码肿瘤EC的特征。我们发现尖端样ECs主要存在于肿瘤组织中,而在正常组织中几乎不存在。提示样ECs参与促进肿瘤血管生成和抑制抗肿瘤免疫反应。此外,肿瘤细胞,骨髓细胞,周细胞是促血管生成因子的主要来源。高比例的尖端样ECs与多种癌症类型的不良预后相关。我们还发现,前列腺特异性膜抗原(PSMA)是我们研究的所有癌症类型中尖端样ECs的特异性标志物。总之,我们证明,尖端样EC是肿瘤和正常组织之间的主要差异EC亚簇。头端样ECs可通过促进血管生成同时抑制抗肿瘤免疫应答来促进肿瘤进展。PSMA是尖端状ECs的特异性标记,可作为诊断和治疗非前列腺癌的潜在靶点。
    Endothelial cells (ECs) play an important role in tumor progression. Currently, the main target of anti-angiogenic therapy is the vascular endothelial growth factor (VEGF) pathway. Some patients do benefit from anti-VEGF/VEGFR therapy; however, a large number of patients do not have response or acquire drug resistance after treatment. Moreover, anti-VEGF/VEGFR therapy may lead to nephrotoxicity and cardiovascular-related side effects due to its action on normal ECs. Therefore, it is necessary to identify targets that are specific to tumor ECs and could be applied to various cancer types. We integrated single-cell RNA sequencing data from six cancer types and constructed a multi-cancer EC atlas to decode the characteristic of tumor ECs. We found that tip-like ECs mainly exist in tumor tissues but barely exist in normal tissues. Tip-like ECs are involved in the promotion of tumor angiogenesis and inhibition on anti-tumor immune responses. Moreover, tumor cells, myeloid cells, and pericytes are the main sources of pro-angiogenic factors. High proportion of tip-like ECs is associated with poor prognosis in multiple cancer types. We also identified that prostate-specific membrane antigen (PSMA) is a specific marker for tip-like ECs in all the cancer types we studied. In summary, we demonstrate that tip-like ECs are the main differential EC subcluster between tumors and normal tissues. Tip-like ECs may promote tumor progression through promoting angiogenesis while inhibiting anti-tumor immune responses. PSMA was a specific marker for tip-like ECs, which could be used as a potential target for the diagnosis and treatment of non-prostate cancers.
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  • 文章类型: Journal Article
    UNASSIGNED:肺癌(LC)患者的长期变化难以评估。我们报告了法国KBP-2020现实生活队列的结果。
    UNASSIGNED:KBP-2020是一个前瞻性队列,包括2020年在法国非学术公立医院诊断为LC的所有患者。描述了患者和肿瘤特征,并与2000年和2010年类似设计的队列进行了比较。
    未经评估:2020年,82个中心包括8,999名诊断为LC的患者。女性比例增加:34%(3114/8999),2010年和2000年为24·3%(1711/7051)和16·0%(904/5667)(p<0·0001)。2020年不吸烟者的比例更高(12.6%,1129/8983)比以前的队列(2010年为10·9%(762/7008);2000年为7·2%(402/5586),p<0·0001)。2020年,在诊断时,57·6%(4405/7648)的患者患有转移性/播散期非小细胞肺癌(NSCLC)(2010年为58·3%(3522/6046);2000年为42·6%(1879/4411),p<0·0001)。与2000年和2010年的数据相比,早期生存率略有改善。2020年,NSCLC的3个月死亡率从局部的3·0%[2·2-3·8]到局部晚期的9·6%[8·1-11·0]到转移性的29·2%[27·8-30·6],SCLC为24·8%[22·3-27·3]。
    未经评估:据我们所知,KBP队列是最大的,prospective,在全球范围内进行的涉及LC患者的真实世界队列研究.在我们的研究中发现的趋势表明,女性LC的增加,并且仍然有很大一部分被诊断为转移或扩散期的患者。
    UNASSIGNED:该研究由法国综合医院肺科医师学院在工业实验室的财政支持下推广。
    UNASSIGNED: Long-term changes in lung cancer (LC) patients are difficult to evaluate. We report results from the French KBP-2020 real-life cohort.
    UNASSIGNED: KBP-2020 was a prospective cohort that included all patients diagnosed with LC in 2020, in nonacademic public hospital in France. Patient and tumour characteristics were described and compared with similarly designed cohorts in 2000 and 2010.
    UNASSIGNED: In 2020, 82 centers included 8,999 patients diagnosed with LC. The proportion of women increased: 34·6% (3114/8999) compared to, 24·3% (1711/7051) and 16·0% (904/5667) in 2010 and 2000 (p<0·0001). The proportion of non-smokers was higher in 2020 (12·6%, 1129/8983) than in previous cohorts (10·9% (762/7008) in 2010; 7·2% (402/5586) in 2000, p<0·0001). In 2020, at diagnosis, 57·6% (4405/7648) of patients had a metastatic/disseminated stage non-small-cell lung cancer (NSCLC) (58·3% (3522/6046) in 2010; 42·6% (1879/4411) in 2000, p<0·0001). Compared with 2000 and 2010 data, early survival improved slightly. In 2020, 3-month mortality of NSCLC varied from 3·0% [2·2 - 3·8] for localized to 9·6% [8·1 - 11·0] for locally advanced to 29·2% [27·8 - 30·6] for metastatic and was 24·8% [22·3 - 27·3] for SCLC.
    UNASSIGNED: To our knowledge KBP cohorts have been the largest, prospective, real-world cohort studies involving LC patients conducted in worldwide. The trend found in our study shows an increase in LC in women and still a large proportion of patients diagnosed at metastatic or disseminated stage.
    UNASSIGNED: The study was promoted by the French College of General Hospital Pulmonologists with financial support of industrials laboratories.
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  • 文章类型: Journal Article
    已显示,恶性肿瘤中细胞外基质的重塑增加与肿瘤侵袭性和不良预后相关。这种重塑涉及原始细胞外基质(ECM)的降解和新的支持肿瘤的ECM的沉积。ECM的主要成分是胶原蛋白,胶原蛋白周转主要以顺序方式发生,其中不溶性纤维的初始蛋白水解裂解随后是大的明确定义的胶原片段的细胞内化以用于溶酶体降解。然而,尽管在该领域进行了广泛的研究,关于肿瘤微环境中哪些细胞类型表达相关蛋白酶的共识仍然存在。此外,不同细胞类型对胶原内化的相对贡献尚不明确.这里,我们开发了定量的离体胶原降解试验,并显示在两个小鼠同系肿瘤模型中,负责胶原初始裂解的蛋白酶是由癌症相关成纤维细胞产生的基质金属蛋白酶,并且胶原降解片段主要被来自肿瘤基质的肿瘤相关巨噬细胞和癌症相关成纤维细胞胞吞.利用甘露糖受体缺陷小鼠的肿瘤,我们表明,这种受体对于肿瘤相关巨噬细胞的胶原内化至关重要。一起,这些发现确定了负责整个胶原蛋白降解途径的细胞类型,从最初的裂解到细胞内降解片段的内吞。
    Increased remodeling of the extracellular matrix in malignant tumors has been shown to correlate with tumor aggressiveness and a poor prognosis. This remodeling involves degradation of the original extracellular matrix (ECM) and deposition of a new tumor-supporting ECM. The main constituent of the ECM is collagen and collagen turnover mainly occurs in a sequential manner, where initial proteolytic cleavage of the insoluble fibers is followed by cellular internalization of large well-defined collagen fragments for lysosomal degradation. However, despite extensive research in the field, a lack of consensus on which cell types within the tumor microenvironment express the involved proteases still exists. Furthermore, the relative contribution of different cell types to collagen internalization is not well-established. Here, we developed quantitative ex vivo collagen degradation assays and show that the proteases responsible for the initial collagen cleavage in two murine syngeneic tumor models are matrix metalloproteinases produced by cancer-associated fibroblasts and that collagen degradation fragments are endocytosed primarily by tumor-associated macrophages and cancer-associated fibroblasts from the tumor stroma. Using tumors from mannose receptor-deficient mice, we show that this receptor is essential for collagen-internalization by tumor-associated macrophages. Together, these findings identify the cell types responsible for the entire collagen degradation pathway, from initial cleavage to endocytosis of fragments for intracellular degradation.
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  • 文章类型: Journal Article
    MicroRNA-567(miR-567)在癌症中起决定性作用,而其在非小细胞肺癌(NSCLC)中的作用仍未被探索。因此,本研究计划探索miR-567在A549NSCLC细胞中的调节功能,并研究其可能有助于NSCLC治疗的分子机制。在目前的研究中,除正常细胞系外,还通过定量实时聚合酶链反应(qRT-PCR)检查了不同NSCLC细胞系中的miR-567表达。用miR-567模拟物转染A549NSCLC细胞,miR-567抑制剂,和阴性对照siRNA。通过MTT和5-溴-2'脱氧尿苷测定评估细胞增殖。通过流式细胞术研究细胞周期分布和细胞凋亡。使用生物信息学分析程序来预期miR-567的推定靶标。通过使用qRT-PCR和蛋白质印迹评估细胞周期蛋白依赖性激酶8(CDK8)基因在mRNA和蛋白质水平的表达。我们的结果发现,与正常细胞系相比,所有研究的NSCLC细胞中miR-567的表达均降低。miR-567上调抑制A549细胞增殖,促进细胞凋亡。此外,miR-567上调诱导的细胞周期停滞在G1和S期。CDK8有望作为miR-567的靶基因。miR-567上调降低CDK8mRNA和蛋白表达,而miR-567下调增加CDK8基因表达。这些发现揭示miR-567可能通过调节CDK8基因表达在A549NSCLC细胞中发挥抑癌作用,并可能作为NSCLC治疗的新靶点。
    MicroRNA-567 (miR-567) plays a decisive role in cancers whereas its role in non-small cell lung cancer (NSCLC) is still unexplored. This study was therefore planned to explore the regulatory function of miR-567 in A549 NSCLC cells and investigate its possible molecular mechanism that may help in NSCLC treatment. In the current study, miR-567 expression was examined by quantitative real time-polymerase chain reaction (qRT-PCR) in different NSCLC cell lines in addition to normal cell line. A549 NSCLC cells were transfected by miR-567 mimic, miR-567 inhibitor, and negative control siRNA. Cell proliferation was evaluated by MTT and 5-bromo-2\'deoxyuridine assays. Cell cycle distribution and apoptosis were studied by flow cytometry. Bioinformatics analysis programs were used to expect the putative target of miR-567. The expression of cyclin-dependent kinase 8 (CDK8) gene at mRNA and protein levels were evaluated by using qRT-PCR and western blotting. Our results found that miR-567 expressions decreased in all the studied NSCLC cells as compared to the normal cell line. A549 cell proliferation was suppressed by miR-567 upregulation while cell apoptosis was promoted. Also, miR-567 upregulation induced cell cycle arrest at sub-G1 and S phases. CDK8 was expected as a target gene of miR-567. MiR-567 upregulation decreased CDK8 mRNA and protein expression while the downregulation of miR-567 increased CDK8 gene expression. These findings revealed that miR-567 may be a tumor suppressor in A549 NSCLC cells through regulating CDK8 gene expression and may serve as a novel therapeutic target for NSCLC treatment.
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  • 文章类型: Journal Article
    代表了有关针对环境化学致癌物和内源性类固醇的抗体的实验和临床数据。提出了对致癌物和类固醇依赖性人类疾病进行免疫调节的概念。据推测,多环芳烃和杂环胺的抗体与胆固醇抗体合作,性激素,矿物和糖皮质激素刺激或抑制癌症,畸形,心血管和自身免疫性疾病取决于它们的个人组合。建议使用这些抗体的免疫测定来预测人类疾病。使用由抗致癌物抗体转化的益生菌进行预防的替代方法得到证实。
    The experimental and clinical data about antibodies against environmental chemical carcinogens and endogenous steroids are represented. The conception of immunomodulation of carcinogens- and steroids-dependent human diseases is proposed. It is postulated that antibodies to polycyclic aromatic hydrocarbons and heterocyclic amines in cooperation with antibodies to cholesterol, sex hormones, mineralo- and glucocorticoids stimulate or inhibit cancer, malformation, cardiovascular and autoimmune diseases depending on their personal combination. It is recommended to use immunoassay of these antibodies for the human diseases prediction. The alternative approaches for prevention using the probiotics transformed by anti-carcinogen antibodies are substantiated.
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  • 文章类型: Journal Article
    骨转移(BM)是癌症的常见并发症,其管理通常需要多学科方法。尽管最近的治疗进展,BM患者仍可能出现骨骼相关事件和症状性骨骼事件,对生活质量和生存产生不利影响。在过去的几十年中,人们对溶解性和硬化性BM的发病机制有了更深入的了解,导致骨靶向剂(BTA)的发展,主要以抗再吸收药物和寻骨放射性药物为代表。最近的临床前和临床研究表明,新型药物具有有希望的效果,其安全性和有效性需要通过前瞻性临床试验证实。在BTA中,辅助双膦酸盐也被证明可以降低某些乳腺癌患者的BM风险,但未能降低肺癌和前列腺癌的发病率。此外,denosumab辅助治疗不能改善乳腺癌患者的无BM生存率,提示需要进一步研究以阐明BTA在早期恶性肿瘤中的作用。这篇综述的目的是描述不同临床环境下的BM发病机制和当前的治疗选择,以及探索需要进一步研究的新型潜在治疗剂的作用机制。
    Bone metastases (BM) are a common complication of cancer, whose management often requires a multidisciplinary approach. Despite the recent therapeutic advances, patients with BM may still experience skeletal-related events and symptomatic skeletal events, with detrimental impact on quality of life and survival. A deeper knowledge of the mechanisms underlying the onset of lytic and sclerotic BM has been acquired in the last decades, leading to the development of bone-targeting agents (BTA), mainly represented by anti-resorptive drugs and bone-seeking radiopharmaceuticals. Recent pre-clinical and clinical studies have showed promising effects of novel agents, whose safety and efficacy need to be confirmed by prospective clinical trials. Among BTA, adjuvant bisphosphonates have also been shown to reduce the risk of BM in selected breast cancer patients, but failed to reduce the incidence of BM from lung and prostate cancer. Moreover, adjuvant denosumab did not improve BM free survival in patients with breast cancer, suggesting the need for further investigation to clarify BTA role in early-stage malignancies. The aim of this review is to describe BM pathogenesis and current treatment options in different clinical settings, as well as to explore the mechanism of action of novel potential therapeutic agents for which further investigation is needed.
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  • 文章类型: Journal Article
    骨代表了几种实体瘤转移的常见部位,包括乳房,前列腺和肺部恶性肿瘤。骨转移(BM)的发生不仅与严重的骨骼并发症有关,但也缩短了总生存期,由于缺乏治疗晚期癌症的治疗选择。尽管诊断技术取得了进步,BM检测通常发生在症状阶段,强调需要针对早期识别高危患者的新策略。为此,正在研究骨转换和肿瘤来源的标志物的潜在诊断,预后和预测作用。在这次审查中,我们总结了乳腺BM的发病机制,前列腺和肺肿瘤,而目前的研究主要集中在BM生物标志物的鉴定和临床验证上。
    Bone represents a common site of metastasis from several solid tumours, including breast, prostate and lung malignancies. The onset of bone metastases (BM) is associated not only with serious skeletal complications, but also shortened overall survival, owing to the lack of curative treatment options for late-stage cancer. Despite the diagnostic advances, BM detection often occurs in the symptomatic stage, underlining the need for novel strategies aimed at the early identification of high-risk patients. To this purpose, both bone turnover and tumour-derived markers are being investigated for their potential diagnostic, prognostic and predictive roles. In this review, we summarize the pathogenesis of BM in breast, prostate and lung tumours, while exploring the current research focused on the identification and clinical validation of BM biomarkers.
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