Micropapillary pattern is associated with the development of brain metastases and the reduction of survival time in EGFR-mutation lung adenocarcinoma patients with surgery

Non-small cell lung cancer (NSCLC) accounts for about 85% of all lung cancers [1], which are the leading cause of cancer-related morbidity and mortality worldwide [2]. With the use of Tyrosine kinase inhibitors (TKI) in NSCLC patients with epidermal growth factor receptor (EGFR) mutations, the survival of lung cancer patients with EGFR mutation has significantly improved [3]. However, 40% patients develop brain metastases (BM) during the disease and the risk of BM is higher in NSCLC patients with EGFR mutation than in those with wild-type tumors [4,5].
Source: Lung Cancer - Category: Cancer & Oncology Authors: Source Type: research

Related Links:

AbstractThree BODIPY ‐peptide conjugates designed to target the epidermal growth factor receptor (EGFR) at the extracellular domain were synthesized and their specificity for binding to EGFR was investigated. Peptide sequences containing seven amino acids, GLARLLT (2) and KLARLLT (3), and 13 amino acids, GYHWYGYTPQNVI (4), were conjugated to carboxyl BODIPY dye (1) by amide bond formation in up to 73% yields. The BODIPY ‐peptide conjugates and their “parent” peptides were determined to bind to EGFR experimentally using SPR analysis, and were further investigated using computational methods (AUTODOCK). Resul...
Source: Photochemistry and Photobiology - Category: Science Authors: Tags: SPECIAL ISSUE RESEARCH ARTICLE Source Type: research
Contributors : Samuel Jacques ; Almer M van der Sloot ; Caroline Huard ; Jasmin Coulombe-Huntington ; Sarah Tsao ; Sylvain Tollis ; Thierry Bertomeu ; Elizabeth J Culp ; Daniel Pallant ; Michael A Cook ; Eric Bonneil ; Pierre Thibault ; Gerard D Wright ; Michael TyersSeries Type : OtherOrganism : Homo sapiensSystematic genetic interaction profiles can reveal the mechanism-of-action of bioactivecompounds. The imipridone ONC201, which is currently in cancer clinical trials, has beenascribed a variety of different targets. To investigate the genetic dependencies of imipridoneaction, we screened a genome-wide CRISPR knockout l...
Source: GEO: Gene Expression Omnibus - Category: Genetics & Stem Cells Tags: Other Homo sapiens Source Type: research
Publication date: Available online 22 February 2020Source: Pharmacological ResearchAuthor(s): Shuai Guo, Yafei Chen, Sai Shi, Xuzhao Wang, Hailin Zhang, Yong Zhan, Hailong AnAbstractTMEM16A plays critical roles in physiological process and may serve as drug targets for diverse diseases. In recently, it has started to be regarded as potential primary lung adenocarcinoma targets. Here, we identified that arctigenin, a natural compound, is a novel TMEM16A inhibitor, and it can suppress lung adenocarcinoma growth through inhibiting TMEM16A both in vitro and in vivo. Our data also showed that the IC50 of actigenin to TMEM16A wh...
Source: Pharmacological Research - Category: Drugs & Pharmacology Source Type: research
ConclusionCompounds 1, 2, 5, and 6 showed anti-prostate cancer activities using the LNCaP prostate cancer cells with IC50 values of 17.84, 33.26, 54.13, and 81.55 μg/mL, and compounds 3, 4, 8, and 9 exhibited moderate hepatoprotective activities, respectively. A preliminary structure-activity relation was summarized in this paper.Graphical abstract
Source: Journal of Ethnopharmacology - Category: Drugs & Pharmacology Source Type: research
Authors: Ohba Y, MacVicar T, Langer T Abstract Mitochondria are multifaceted metabolic organelles and adapt dynamically to various developmental transitions and environmental challenges. The metabolic flexibility of mitochondria is provided by alterations in the mitochondrial proteome and is tightly coupled to changes in the shape of mitochondria. Mitochondrial proteases are emerging as important post-translational regulators of mitochondrial plasticity. The i-AAA protease YME1L, an ATP-dependent proteolytic complex in the mitochondrial inner membrane, coordinates mitochondrial biogenesis and dynamics with the meta...
Source: Biological Chemistry - Category: Chemistry Tags: Biol Chem Source Type: research
Authors: Gholami A, Mousavi SM, Hashemi SA, Ghasemi Y, Chiang WH, Parvin N Abstract Nowadays, magnetic nanoparticles (MNPs) have been rapidly investigated and attracted worldwide attention due to their great potential as mediators of heat for treating hyperthermia and their possibility to deliver drugs at specific locations, which can thereby limit systematic effects. Cancer therapy via MNPs proposes novel properties rather than normal methods such as almost zero side effects and a high-efficiency rate of effectiveness. The key aim of targeted drug delivery is to reduce side effects of the main cancer treatment tha...
Source: Drug Metabolism Reviews - Category: Drugs & Pharmacology Tags: Drug Metab Rev Source Type: research
In this study we tried to explore Diazepam as a repurposed drug and tested it in Neuroblastoma (Neuro 2a) cells. Diazepam loaded Poly Lactic Acid Nanoparticles were developed (D-PLA-NPs) using nanoprecipitation method. Entrapment efficiency was found to be ± 99.7% and drug loading was ± 12.88%. The particle size developed was 188.8 nm and zeta potential was −25.6 millivolt. Dissolution profiles were studied in PBS (pH 7.4) or simulated media, almost 50% release was observed within 6 h. In vitro, cytotoxicity was analyzed using MTT assay where dose-dependent cytotoxicity was observed for developed D-PLA-NPs.
Source: Materials Today: Proceedings - Category: Materials Science Source Type: research
Abstract Two novel electrochemiluminescence (ECL) deoxyribosensors are designed for assay of early lung cancer biomarker (NAP2) using the DNA three-way junction (DNA-TWJ) inserted NAP2 binding aptamer between two double-helical stems and labeled with ruthenium (II) complex (Ru) (NBAT-Ru) taken as molecular recognition element. The signal-off ECL deoxyribosensor was fabricated by covalently coupling the 5'-NH2-(CH2)6-NBAT-Ru to glassy carbon electrode surface modified with 4-aminobenzoic acid (4-ABA). After combining NAP2 and NBAT-Ru, the changed conformation of NBAT-Ru altered the distance between Ru complex and e...
Source: Analytica Chimica Acta - Category: Chemistry Authors: Tags: Anal Chim Acta Source Type: research
Abstract The expression level of miRNA-21 is closely related to the occurrence and development of cancer, especially in gastrointestinal cancer. Monitoring miRNA-21 has clinical application in the diagnosis and evaluation of gastrointestinal cancer. A turn-on ratiometric fluorescence bioassay based on the T7 exonuclease-mediated cyclic enzymatic amplification method was developed for miRNA-21 determination by using carbon dots (CDs) and FAM-labeled ssDNA as the signal source. CDs demonstrated the triple functions of built-in internal fluorescence, probe carrier, and quencher in this strategy. In the absence of miR...
Source: Analytica Chimica Acta - Category: Chemistry Authors: Tags: Anal Chim Acta Source Type: research
Publication date: Available online 18 January 2019Source: Pathology - Research and PracticeAuthor(s): Binnari Kim, Yun-jeong Jang, Sujin Park, Jung-Il Lee, Hong Kwan Kim, Joungho HanAbstractBackgroundStudies have shown that 30-50% of non-small cell lung cancer (NSCLC) patients develop brain metastasis (BM). Since BM shortens overall survival and decreases the quality of life, early detection and treatment of BM are vital. While data are available for clinical risk factors of NSCLC with BM, histopathological factors are not well understood. Therefore, we evaluated the histopathological related factors which will help early ...
Source: Pathology Research and Practice - Category: Pathology Source Type: research
More News: Adenocarcinoma | Brain | Brain Cancers | Cancer | Cancer & Oncology | Lung Cancer | Micropapillary Carcinoma | Neurology | Non-Small Cell Lung Cancer