Myriocin is an inhibitor of synthesis of sphingolipids and ceramides. In this research, we showed myriocin could significantly reduce Mtb burden and histopathological inflammation in mice. However, the underlying mechanism remains unclear.
View Article and Find Full Text PDFPurpose: Bowel habits may affect the prognosis in the chronic kidney disease (CKD) patients. This study aimed to explore the association of bowel habits with cardiovascular and all-cause mortality in CKD.
Methods: 2460 CKD patients in the National Health and Nutrition Examination Survey (NHANES) from 2005 through 2010 without missing data for bowel habits and mortality were enrolled.
Caseous granulomas are pathological hallmarks of tuberculosis (TB), and increasing evidence suggests that TB granuloma composition is highly temporally and spatially heterogenous in both animal models and humans. Traditional pathological techniques are limited in their ability to reveal the heterogeneity present in TB granulomas. Multiplex tissue imaging tools combined with powerful, high resolution spatial analysis have enabled the detection of various cell phenotypes, aiding in the visualization of the granuloma complex and revealing the interactions between immune cells and nonimmune cells.
View Article and Find Full Text PDFAt present, only a small fraction of patients with cancer benefit from treatment with immune checkpoint inhibitors, the reasons for which are not fully understood. Monitoring molecular and immunologic changes during treatment with immune checkpoint inhibitors would help to identify potential biomarkers and mechanisms associated with resistance and guide subsequent treatment. The authors report on a patient previously treated for lung squamous cell carcinoma who received atezolizumab-based therapy for 24 months.
View Article and Find Full Text PDFTargeted therapy for patients with advanced non-small cell lung cancer (NSCLC) is often challenged by the arising of drug resistance. After progression to targeted therapy, treatment options include continued targeted therapy, definitive local therapy, and the combination of both. While there is evidence that local ablative radiotherapy may prolong the disease control by targeted therapy, little is known regarding the relevance of salvage thoracic surgery in this setting.
View Article and Find Full Text PDFBackground: Increasing evidence indicates that the aberrant expression of circular RNAs (circRNAs) is involved in the pathogenesis and progression of lung adenocarcinoma (LUAC). However, the function and molecular mechanisms of hsa_circ_0002483 (circ_0002483) in LUAC remain unclear.
Methods: The association between circ_0002483 expression and clinicopathological characteristics and prognosis in patients with LUAC was analyzed by fluorescence in situ hybridization.
Osimertinib (OSI) resistance commonly occurs during the treatment of non-small-cell lung cancer (NSCLC). This study aims to investigate whether the thermal effects of radiofrequency ablation (RFA) can increase the sensitivity of OSI-resistant NSCLC to OSI treatment and whether OSI effectively inhibits the recurrence of OSI-resistant NSCLC following RFA treatment and improve survival of NSCLC patients. In vitro, OSI-resistant NCI-H1975 (NCI-H1975/OSIR) cells and thermotolerant NCI-H1975/OSIR (NCI-H1975/OSIR-a-h) cells were established using human NSCLC cell line NCI-H1975.
View Article and Find Full Text PDFTumour drug resistance is one of the most urgent issues faced by anti-tumour therapies. P-glycoprotein (P-gp) has been reported to be correlated with drug resistance. In this study, we aimed to study the synergistic effect of fluorouracil (5FU) and Ubenimex (UBE) on drug resistance in lung cancer.
View Article and Find Full Text PDFCirculating tumor cells (CTCs) that are shed from the primary tumor invade the blood stream or surrounding parenchyma to form new tumors. The present study aimed to explore the underlying mechanism of cisplatin resistance in lung adenocarcinoma CTCs and provide clinical treatment guidance for lung cancer treatment. CTCs from the blood samples of 6 lung adenocarcinoma patients were treated with different concentrations of cisplatin along with A549 and H1299 cells.
View Article and Find Full Text PDFRadiofrequency ablation (RFA) is widely used in the treatment of lung cancer. Hypoxia-inducible factor-1α (HIF-1α) is a crucial transcription factor regulating oxygen homeostasis that is involved in tumor cell metastasis. The present study investigated the impact of HIF-1α expression and other factors, such as postoperative blood CD4/CD8 ratio, on the prognosis of patients with lung cancer who had received RFA treatment.
View Article and Find Full Text PDFPatients with non-small cell lung cancer (NSCLC) harboring MET exon 14 skipping can benefit from crizotinib treatment. Currently, the main resistance mechanisms to crizotinib are MET D1228N and Y1230C mutations. We reported a case of a Chinese NSCLC patient with MET exon 14 skipping detected by targeted next-generation sequencing (NGS) achieved clinical and imaging remission after crizotinib treatment.
View Article and Find Full Text PDFThe present study aimed to evaluate the function of microRNA (miR)-142-5p on cancer immunity to induce apoptosis in human non-small cell lung cancer (NSCLC) and its mechanism. miR-142-5p expression was upregulated, and CD4+ T cell levels were reduced in patients with NSCLC. Overexpression of miR-142-5p expression inhibited the cancer effects of CD4+ T cells on NSCLC cell lines, and downregulation of miR-142-5p increased the cancer effects of CD4+ T cells on NSCLC cell lines, compared with the control group.
View Article and Find Full Text PDFAfatinib exhibits therapeutic efficacy for lung adenocarcinoma patients harboring HER2 exon 20 insertions. HER2 S310Y single site substitution was discovered in recent years and afatinib efficacy for adenocarcinoma patients harboring S310Y mutation has not been reported. We presented a case of a 41-year-old male patient with lung adenocarcinoma harboring the HER2 S310Y mutation obtained clinical response to the treatment of afatinib, an oral HER family blocker.
View Article and Find Full Text PDFIncreasing evidences prove video-assisted thoracic surgery (VATS) segmentectomy is accepted as a valid alternative to lobectomy esp. a greater number of small lung nodules have been detected. Uniportal VATS segmentectomy for small-sized lung cancer is more challenging not only for technical issues in simple or complex uniportal segmentectomy, but also considering oncological efficacy in terms of localization, safe margin, the extent of lymph node dissection and pathological analysis.
View Article and Find Full Text PDFBackground: Non-small cell lung cancer (NSCLC) is the main type of lung cancer. While miR-186 is significantly reduced in lung cancer tissues and cells, its role in NSCLC has not been completely elucidated.
Material And Methods: We used qRT-PCR and western blot methods to investigate the levels of miR-186 and YY1 in 21 pairs of NSCLC tissues.
Lung cancer is the leading cause of cancer-related death worldwide. Despite the advancement in surgery and chemotherapy, the prognosis of patients with advanced lung cancer is still poor. Yin Yang-1 (YY1) is a multifunctional transcription factor that exhibits positive and negative control on a large number of cellular and viral genes.
View Article and Find Full Text PDFLong non-coding RNA (lncRNA) H19 was reported to be aberrantly expressed and implicated in non-small cell lung cancer (NSCLC). However, the regulation of NSCLC progression by H19 was not well understood. In this study, we found that the expression level of H19 was obviously increased, but miR-138 was decreased in NSCLC tissues and NSCLC cells including A549, H1299 and H460 cells.
View Article and Find Full Text PDFS-phase kinase-associated protein 2 (Skp2) is an E3 ubiquitin ligase and plays an important role in the control of cell cycle progression. Skp2 is upregulated in several cancers, including lung cancers, but the role of Skp2 in the tumorigenesis and anticancer drug resistance in human lung cancer remains to be determined. We report here that Skp2 positively regulated mitotic arrest deficient 2 (MAD2) expression and that inhibition of Skp2 sensitizes human lung cancer cells to paclitaxel.
View Article and Find Full Text PDFNow, more and more complete video-assisted thoracoscopic surgery (cVATS) surgeons are capable of performing lobectomy by uniportal approach. However, concerns regarding the safety of uniportal procedures for complex cases such as neoadjuvant chemotherapy, bronchial sleeves or vascular reconstructions still remains. As experience with uniportal VATS has increased, its application toward more technically demanding operations has also expanded.
View Article and Find Full Text PDFObjective: To study the association between single nucleotide polymorphisms (SNPs) of interleukin-22 (IL-22) gene and pulmonary tuberculosis.
Methods: From January 2009 to December 2010, clinical data of 479 patients with pulmonary tuberculosis in Shenzhen Third People's Hospital were collected. There were 212 males, and 267 females, aging from 18 to 69 (mean 36 ± 17) years, as well as 358 healthy controls (162 males and 196 females), aging from 18 to 60 (mean 34 ± 13) years.