Lung cancer is one of the leading causes of cancer-related death worldwide [...
View Article and Find Full Text PDFLung cancer is a fatal complication of idiopathic pulmonary fibrosis (IPF) with a poor prognosis. Current treatments are insufficient in improving the prognosis of lung cancer patients with comorbid idiopathic pulmonary fibrosis (IPF-LC). Senescent fibroblasts, as stromal cells in the tumor microenvironment, influence tumor progression via exosomes.
View Article and Find Full Text PDFSmall cell lung cancer (SCLC) urgently needs new therapeutic approaches. We found that the antibiotic-derived compound Isovalerylspiramycin I (ISP-I) has potent anti-tumor activity against SCLC cell lines H1048 and DMS53 both in vitro and in vivo. ISP-I induced apoptosis, G2/M phase cell cycle arrest, and mitochondrial respiratory chain dysfunction in both cell lines.
View Article and Find Full Text PDFBackground: The formation of stem cell clones enables close contact of stem cells inside. The gap junctions in such clone spheres establish a microenvironment that allows frequent intercellular communication to maintain self-renewal and functions of stem cells. Nevertheless, the essential gap junction protein for molecular signaling in clones is poorly known.
View Article and Find Full Text PDFGene transfer agents (GTAs) are phage-like entities that package and transfer random host genome fragments between prokaryotes. RcGTA, produced by , is hypothesized to originate from a prophage ancestor. Most of the evidence supporting this hypothesis came from the finding of RcGTA-like genes in phages.
View Article and Find Full Text PDFSAR202 bacteria in the Chloroflexota phylum are abundant and widely distributed in the ocean. Their genome coding capacities indicate their potential roles in degrading complex and recalcitrant organic compounds in the ocean. However, our understanding of their genomic diversity, vertical distribution, and depth-related metabolisms is still limited by the number of assembled SAR202 genomes.
View Article and Find Full Text PDFBackground: Idiopathic pulmonary fibrosis (IPF) is a type of interstitial lung disease characterized by unknown causes and a poor prognosis. Recent research indicates that age-related mechanisms, such as cellular senescence, may play a role in the development of this condition. However, the relationship between cellular senescence and clinical outcomes in IPF remains uncertain.
View Article and Find Full Text PDFBackground: Esophageal cancer (EC) is a prevalent malignancy characterized by a low 5-year survival rate, primarily attributed to delayed diagnosis and limited therapeutic options. Currently, early detection of EC heavily relies on endoscopy and pathological examination, which pose challenges due to their invasiveness and high costs, leading to low patient compliance. The detection of DNA methylation offers a non-endoscopic, cost-effective, and secure approach that holds promising prospects for early EC detection.
View Article and Find Full Text PDFPurpose: In approximate 40% of thoracic endovascular aortic repair (TEVAR) procedures, the left subclavian artery (LSA) needs to be covered to obtain sufficient proximal sealing zone. To preserve the LSA during the TEVAR for type B aortic dissection (TBAD) adjacent to LSA, our team designed a modular single inner-branched stent graft. This study was performed to evaluate the safety and feasibility of deploying a modular single inner-branched stent graft in a porcine model.
View Article and Find Full Text PDFViruses are infectious and abundant in the marine environment. Viral lysis of host cells releases organic matter and nutrients that affect the surrounding microbial community. are important primary producers in the ocean and they are subject to frequent viral infection.
View Article and Find Full Text PDFMicrobiol Spectr
January 2024
The survival of the sinking prokaryotes and viruses in the deep-sea environment is crucial for deep-sea ecosystems and biogeochemical cycles. Through an deep-sea long-term incubation device, our results showed that viral particles and infectivity had still not decayed completely after incubation for 1 year. This suggests that, via infection and lysis, surface viruses with long-term infectious activity deep-sea environments may influence deep-sea microbial populations in terms of activity, function, diversity, and community structure and ultimately affect deep-sea biogeochemical cycles, highlighting the need for additional research in this area.
View Article and Find Full Text PDFFront Microbiol
November 2023
Cyanophages affect the abundance, diversity, metabolism, and evolution of picocyanobacteria in marine ecosystems. Here we report an estuarine phage, S-CREM2, which represents a novel viral genus and leads to the establishment of a new T4-like cyanophage clade named cluster C. S-CREM2 possesses the longest tail (~418 nm) among isolated cyanomyoviruses and encodes six tail-related proteins that are exclusively homologous to those predicted in the cluster C cyanophages.
View Article and Find Full Text PDFThe present study aimed to evaluate the ability of a novel serum-free medium (SFM) to culture human airway epithelium cells (hAECs). hAECs were cultured in the novel SFM as the experimental group in the PneumaCult-Ex medium and Dulbecco's modified eagle medium (DMEM) and fetal bovine serum (FBS) as the control groups. Cell morphology, proliferative capacity, differentiation capacity and expression levels of basal cell markers were assessed accordingly in both culture systems.
View Article and Find Full Text PDFEstuaries are one of the most highly productive and economically important ecosystems at the continent-ocean interface. Estuary productivity is largely determined by the microbial community structure and activity. Viruses are major agents of microbial mortality and are key drivers of global geochemical cycles.
View Article and Find Full Text PDFCyanophages play important roles in regulating the population dynamics, community structure, metabolism, and evolution of cyanobacteria in aquatic ecosystems. Here, we report the genomic analysis of an estuarine cyanophage, S-CREM1, which represents a new genus of T4-like cyanomyovirus and exhibits new genetic characteristics. S-CREM1 is a lytic phage which infects estuarine sp.
View Article and Find Full Text PDFIntroduction: Juxtarenal abdominal aortic aneurysms (JRAAAs) are challenging to cure by traditional endovascular aortic repair (EVAR). Due to the inherent disadvantages of the customized fenestrated and/or branched aortic endografts (such as delayed cycles with a risk of aneurysm rupture, unavailable in emergency or confine operations), several off-the-shelf devices have been developed for the treatment of JRAAA. However, these devices being used in clinical trials have been proven to have a non-negligible risk of reintervention and inadequate anatomic applicability.
View Article and Find Full Text PDFCyanophages, viruses that infect cyanobacteria, are abundant and widely distributed in aquatic ecosystems, playing important roles in regulating the abundance, activity, diversity, and evolution of cyanobacteria. A T4-like cyanophage, S-SCSM1, infecting and strains of different ecotypes, was isolated from the South China Sea in this study. For the first time, a mannose-6-phosphate isomerase (MPI) gene was identified in the cultured cyanophage.
View Article and Find Full Text PDFNovel drugs are required for non-small cell lung cancer (NSCLC) treatment urgently. Repurposing old drugs as new treatments is a practicable approach with time and cost savings. Some studies have shown that carrimycin, a Chinese Food and Drug Administration (CFDA)-approved macrolide antibiotic, possesses potent anti-tumor effects against oral squamous cell carcinoma.
View Article and Find Full Text PDFPurpose: To investigate the potential genetic cause in a primary infertility patient with multiple morphological abnormalities of sperm flagella (MMAF).
Methods: The patient's sperm was observed by light and electron microscopy. Whole-exome sequencing (WES) was carried out to identify candidate genes.
Lytic and lysogenic infections are the main strategies used by viruses to interact with microbial hosts. The genetic information of prophages provides insights into the nature of phages and their potential influences on hosts. Here, the siphovirus vB_MoxS-R1 was induced from a strain isolated from an estuarine culture.
View Article and Find Full Text PDFObjectives: The aim of this study was to evaluate the feasibility and safety of a non-customized modular inner branched stent graft for total endovascular aortic arch repair in a porcine model.
Methods: The modular inner branched stent graft system with a split main body design included 1 proximal main component, 1 distal main component, and 1 branched covered stent. The gutter in the proximal main component was sealed with sutured membrane.
Objective: To determine whether time-lapse monitoring (TLM) for cleavage-stage embryo selection improves reproductive outcomes in comparison with conventional morphological assessment (CMA) selection.
Design: Prospective randomized controlled trial.
Setting: Single academic center.
Carboxyl-rich alicyclic molecules (CRAMs) widely exist in the ocean and constitute the central part of the refractory dissolved organic matter (RDOM) pool. Although a consensus has been reached that microbial activity forms CRAMs, the detailed molecular mechanisms remain largely unexplored. To better understand the underlying genetic mechanisms driving the microbial transformation of CRAM, a long-term macrocosm experiment spanning 220 days was conducted in the Aquatron Tower Tank at Dalhousie University, Halifax, Canada, with the supply of diatom-derived DOM as a carbon source.
View Article and Find Full Text PDFProblem: Repeated implantation failure (RIF) is a daunting obstacle restricting the further improvement of embryo implantation rate (IR) and live birth rate (LBR). The beneficial effect of cyclosporine A (CsA) on reproductive outcomes of unexplained RIF(URIF) was explored after de novo embryo transfer (ET).
Method Of Study: A retrospective cohort study was conducted, comparing pregnancy outcomes of 146 cycles (CsA group, n = 62; control group, n = 84) at the IVF center of Suzhou Municipal Hospital from April 2016 to March 2020.