Background: Efficient and affordable diagnosis, coupled with a clear understanding of driver gene prevalence, distribution, and clinicopathological features of driver genes, is crucial for lung cancer treatment and prevention. This study developed a cost-effective targeted sequencing assay for actionable driver mutation and investigated EGFR, KRAS, NRAS, BRAF, PIK3CA, MET, and HER2 in a southern Taiwanese lung cancer population.
Materials And Methods: Two hundred and twenty-three lung cancer specimens from Chang Gung Memorial Hospital, Chiayi (2009-2020), were retrospectively analyzed.
Lynch syndrome is an autosomal dominant disorder predisposing individuals to colorectal and other cancers, primarily caused by variants in mismatch repair genes. This study describes a novel MSH6 variant affecting transcript structure in a Taiwanese family meeting the Amsterdam II criteria for Lynch syndrome. A 67-year-old male presented with jejunal adenocarcinoma and a strong family history of colorectal cancer.
View Article and Find Full Text PDFBackground: The benefit of cytoreduction with hyperthermic intraperitoneal chemotherapy (CRS/HIPEC) for epithelial ovarian cancer (EOC) remains uncertain. This study investigated the relationship between serum cytokines, particularly monocyte chemoattractant protein-1 (MCP-1), a key inflammatory mediator, and recurrence risk in EOC patients undergoing CRS/HIPEC.
Methods: From January 2018 to January 2023, serum cytokine levels were analyzed in 34 EOC patients (17 primary, 17 recurrent) before and after CRS/HIPEC using MILLIPLEX Magnetic Bead Panels.
World J Clin Cases
September 2024
Background: Although cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) offer the potential for long-term survival in peritoneal carcinomatosis, outcomes following CRS/HIPEC vary significantly.
Aim: To identify the clinical factors associated with progression-free survival (PFS) after complete CRS/HIPEC in patients with colorectal/high-grade appendiceal, ovarian, and gastric cancers.
Methods: We retrospectively evaluated the risk of recurrence within 1 year after CRS/HIPEC and its impact on overall survival (OS) in patients recruited between 2015 and 2020.
Macrophages, pivotal components of the immune system, orchestrate host defense mechanisms in humans and mammals. Their polarization into classically activated macrophages (CAMs or M1) and alternatively activated macrophages (AAMs or M2) dictates distinct functional roles in immunity and tissue homeostasis. While the negative regulatory role of CD32b within the FC gamma receptor (FCγR) family is recognized across various immune cell types, its influence on macrophage polarization remains elusive.
View Article and Find Full Text PDFThe ongoing COVID-19 pandemic, caused by SARS-CoV-2, continues to pose significant global health challenges. The results demonstrated that GB-2 at 200 μg/mL effectively increased the population of 293T-ACE2 cells with low RBD binding for both SARS-CoV-2 Omicron EG.5.
View Article and Find Full Text PDFMolecular techniques that recover unknown sequences next to a known sequence region have been widely applied in various molecular studies, such as chromosome walking, identification of the insertion site of transposon mutagenesis, fusion gene partner, and chromosomal breakpoints, as well as targeted sequencing library preparation. Although various techniques have been introduced for efficiency enhancement, searching for relevant single molecular event present in a large-sized genome remains challenging. Here, the optimized ligation-mediated polymerase chain reaction (PCR) method was developed and successfully identified chromosomal breakpoints far away from the exon of the new exon junction without the need for nested PCR.
View Article and Find Full Text PDFSalvinal is a natural lignan isolated from the roots of Bunge (Danshen). Previous studies have demonstrated its anti-proliferative activity in both drug-sensitive and -resistant cancer cell lines, with IC values ranging from 4-17 µM. In this study, a series of salvinal derivatives was synthesized and evaluated for the structure-activity relationship.
View Article and Find Full Text PDFInt J Mol Sci
October 2022
For rapid and unlimited cell growth and proliferation, cancer cells require large quantities of nutrients. Many metabolic pathways and nutrient uptake systems are frequently reprogrammed and upregulated to meet the demand from cancer cells, including the demand for lipids. The lipids for most adult normal cells are mainly acquired from the circulatory system.
View Article and Find Full Text PDFfusion genes are rare but important driver genes in lung cancer. Owing to their rarity, many clinicopathological features and treatment responses for each fusion variant are still largely unknown and require further investigation. RNA is the preferable template for the fusion gene screening, but deterioration of RNA in FFPE often makes the detection challenging.
View Article and Find Full Text PDFThis study aims to investigate the role of F-fluorodeoxyglucose positron emission tomography/computed tomography (F-FDG PET/CT) in early prediction of response and survival following epithelial growth factor receptor (EGFR)-tyrosine kinase inhibitor (TKI) therapy in patients with advanced lung adenocarcinomas and EGFR mutations. Thirty patients with stage IIIB/IV lung adenocarcinomas and EGFR mutations receiving first-line EGFR-TKIs were prospectively evaluated between November 2012 and May 2015. EGFR mutations were quantified by delta cycle threshold (dCt).
View Article and Find Full Text PDFAm J Transl Res
October 2021
Cullin 4A (Cul4A) reportedly has oncogenic roles in several cancer types by regulating tumor suppressors through the ubiquitination and proteolysis of the tumor suppressor. In addition, Cul4A is associated with chemosensitivity to chemotherapy drugs. This study investigated the association between Cul4A and lung cancer cell chemosensitivity to paclitaxel, particularly with respect to the role of the p33 inhibitor of the growth 1 (p33ING1b) tumor suppressor.
View Article and Find Full Text PDFCancers (Basel)
August 2021
Annexin A1 (ANXA1) has been reported to promote tumor growth and resistance to chemotherapy drugs in lung cancer cells. In this study, we focused on the association of ANXA1 and chemosensitivity with a third generation epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI), Osimertinib, in lung cancer cells with EGFR mutations. The overexpression of ANXA1 was observed in the lung cancer cells studied.
View Article and Find Full Text PDFMutations that lead to constitutive activation of key regulators in cellular processes are one of the most important drivers behind vigorous growth of cancer cells, and are thus prime targets in cancer treatment. BRAF V600E mutation transduces strong growth and survival signals for cancer cells, and is widely present in various types of cancers including lung cancer. A combination of BRAF inhibitor (dabrafenib) and MEK inhibitor (trametinib) has recently been approved and significantly improved the survival of patients with advanced NSCLC harboring BRAF V600E/K mutation.
View Article and Find Full Text PDFJ Med Virol
June 2020
An outbreak of coronavirus disease 2019 (COVID-19) occurred in Wuhan and it has rapidly spread to almost all parts of the world. For coronaviruses, RNA-dependent RNA polymerase (RdRp) is an important polymerase that catalyzes the replication of RNA from RNA template and is an attractive therapeutic target. In this study, we screened these chemical structures from traditional Chinese medicinal compounds proven to show antiviral activity in severe acute respiratory syndrome coronavirus (SARS-CoV) and the similar chemical structures through a molecular docking study to target RdRp of SARS-CoV-2, SARS-CoV, and Middle East respiratory syndrome coronavirus (MERS-CoV).
View Article and Find Full Text PDFMutations in the epidermal growth factor receptor () are associated with various solid tumors. This study aimed to compare two methods for the detection of mutations in circulating tumor DNA (ctDNA) from lung adenocarcinoma (LUAD) patients and to evaluate the clinical significance of mutations in ctDNA. In this prospective cohort study, the mutation status of 77 patients with stage IIIB or IV LUAD was first determined using lung cancer tissue.
View Article and Find Full Text PDFCancers (Basel)
May 2019
Cullin 4A (Cul4A) is overexpressed in a number of cancers and has been established as an oncogene. This study aimed to elucidate the role of Cul4A in lung cancer invasion and metastasis. We observed that Cul4A was overexpressed in non-small cell lung cancer (NSCLC) tissues and the overexpression of Cul4A was associated with poor prognosis after surgical resection and it also decreased the expression of the tumor suppressor protein annexin A10 (ANXA10).
View Article and Find Full Text PDFThe aim of the present retrospective cohort study was to elucidate the clinical presentation of epidermal growth factor receptor (EGFR)-tyrosine kinase inhibitor (TKI) responders and non-responders in lung adenocarcinoma patients with common mutations. The cohort included 131 lung adenocarcinoma patients with common exon 19 or exon 21 mutations, who were receiving first-line EGFR-TKI therapy. The patient characteristics, treatment regimen and outcomes were recorded and analyzed.
View Article and Find Full Text PDFDrug Des Devel Ther
July 2018
Unlimited growth of cancer cells requires an extensive nutrient supply. To meet this demand, cancer cells drastically upregulate glucose uptake and metabolism compared to normal cells. This difference has made the blocking of glycolysis a fascinating strategy to treat this malignant disease.
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