Expression and clinical significance of PD-L1 and c-Myc in non-small cell lung cancer

AbstractBackgroundIt is known that there are insufficient prognostic factors for non-small cell lung cancer (NSCLC). It was reported that PD-L1 was a prognostic factor for NSCLC,and c-Myc regulated the expression of PD-L1. Herein, we investigated c-Myc and PD-L1 expression and their association with overall survival (OS) in NSCLC.MethodsFormalin-fixed paraffin-embedded specimens were obtained from 128 patients with surgically resected primary NSCLC. Immunohistochemistry was used to assess the expression of PD-L1 and c-Myc in this study. Pearson ’s Chi squared test or Fisher’s exact test was used to analyze the correlation of the expression of PD-L1 and c-Myc with clinicopathologic features. The relationship between OS and the expression of PD-L1 and c-Myc was evaluated by the Kaplan–Meier method and Cox proportional hazards model, re spectively.ResultsPositive expression of PD-L1 was detected in 59 patients (46.1%). Patients with negative expression of PD-L1 had remarkably longer OS than those with positive expression of PD-L1. The positive expression rate of c-Myc in NSCLC accounted for 58.6% (75/128) and its expression was significantly more frequent in males (p  =  0.002) and patients with lymph node metastasis (p  =  0.029). PD-L1 expression was positively correlated with c-Myc expression (r  =  0.459,p  
Source: Journal of Cancer Research and Clinical Oncology - Category: Cancer & Oncology Source Type: research

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In this study, we discovered that miR-561 expression was downregulated in human NSCLC tissues and cell lines. The overexpression of miR-561 inhibited NSCLC cell proliferation and cell cycle G1-S transition and induced apoptosis. The inhibition of miR-561 facilitated cell proliferation and G1-S transition and suppressed apoptosis. MiR-561 expression was inversely correlated with P-REX2a expression in NSCLC tissues. P-REX2a was confirmed to be a direct target of miR-561 by using a luciferase reporter assay. The overexpression of miR-561 decreased P-REX2a expression, and the suppression of miR-561 increased P-REX2a expression...
Source: Oncology Research - Category: Cancer & Oncology Tags: Oncol Res Source Type: research
Condition:   Non-small Cell Lung Cancer Intervention:   Other: green tea Sponsors:   Xinqiao Hospital of Chongqing;   Daping Hospital and the Research Institute of Surgery of the Third Military Medical University Not yet recruiting
Source: - Category: Research Source Type: clinical trials
Condition:   Cachexia; Cancer Intervention:   Other: multimodal Sponsor:   Aalborg University Hospital Completed
Source: - Category: Research Source Type: clinical trials
Journal of Natural ProductsDOI: 10.1021/acs.jnatprod.9b00659
Source: Journal of Natural Products - Category: Biochemistry Authors: Source Type: research
AbstractBackgroundAcute exacerbation (AE) of interstitial lung disease (ILD) is a fatal adverse event in the treatment of lung cancer patients with ILD. The value of pre-treatment radiological findings obtained by high-resolution computed tomography for the detection of anticancer treatment-related AE of ILD has not been established.MethodsTwo medical record-based retrospective studies were performed. The chemotherapy cohort included 105 lung cancer patients with ILD who received chemotherapy at Tokyo Medical and Dental University between October 2008 and December 2017. The immune checkpoint inhibitor (ICI) cohort included...
Source: International Journal of Clinical Oncology - Category: Cancer & Oncology Source Type: research
Purpose: To investigate whether a deep learning-assisted contour (DLAC) could provide greater accuracy, inter-observer consistency, and efficiency compared with a manual contour (MC) of the clinical target volume (CTV) for non-small cell lung cancer (NSCLC) receiving postoperative radiotherapy (PORT).Materials and Methods: A deep dilated residual network was used to achieve the effective automatic contour of the CTV. Eleven junior physicians contoured CTVs on 19 patients by using both MC and DLAC methods independently. Compared with the ground truth, the accuracy of the contour was evaluated by using the Dice coefficient a...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
Yicheng Ni Cancer remains a major cause of death globally. Given its relapsing and fatal features, curing cancer seems to be something hardly possible for the majority of patients. In view of the development in cancer therapies, this article summarizes currently available cancer therapeutics and cure potential by cancer type and stage at diagnosis, based on literature and database reviews. Currently common cancer therapeutics include surgery, chemotherapy, radiotherapy, targeted therapy, and immunotherapy. However, treatment with curative intent by these methods are mainly eligible for patients with localized diseas...
Source: Cancers - Category: Cancer & Oncology Authors: Tags: Review Source Type: research
CONCLUSIONS Application of Traditional Chinese Medicine prolonged progression-free survival and enhanced therapeutic effect in NSCLC patients harboring EGFR mutations receiving EGFR-TKI treatment. Meanwhile, adjunctive Chinese medicine combining EGFR-TKI in NSCLC with EGFR mutations caused no adverse effects. PMID: 31704907 [PubMed - in process]
Source: Medical Science Monitor - Category: Research Tags: Med Sci Monit Source Type: research
Objective: To investigate cancer- and noncancer-specific mortality following lobectomy by minimally invasive surgery (MIS) versus open thoracotomy in elderly patients with nonsmall cell lung cancer (NSCLC). Background: Two-thirds of patients with NSCLC are ≥65 years of age. As age increases, the risk of competing events, such as noncancer death, also increases. Methods: Elderly patients (≥65 yrs of age) who have undergone curative-intent lobectomy for stage I-III NSCLC without induction therapy (2002–2013) were included (n=1,303). Of those, 607 patients had undergone MIS and 696 had undergone thoracotom...
Source: Annals of Surgery - Category: Surgery Tags: ORIGINAL ARTICLES Source Type: research
Lung cancer is a leading cause of death from cancer worldwide, especially non-small cell lung cancer (NSCLC). The marker of progression in lung adenocarcinoma, the main type of NSCLC, has been rarely studied. ...
Source: BMC Medical Genetics - Category: Genetics & Stem Cells Authors: Tags: Research article Source Type: research
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