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Lung carcinoma

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https://www.readbyqxmd.com/read/28943940/leptomeningeal-metastasis-of-pulmonary-large-cell-neuroendocrine-carcinoma-a-case-report-and-review-of-the-literature
#1
Guozi Yang, Zhenyu Pan, Ning Ma, Limei Qu, Tingting Yuan, Xiaochuan Pang, Xu Yang, Lihua Dong, Shixin Liu
Pulmonary large-cell neuroendocrine carcinoma (LCNEC) is a rare and malignant form of lung cancer with a poor prognosis for patients. The common sites of metastases are the liver, adrenal glands, bone and brain. LCNEC rarely metastasizes to the small intestine, ovaries, tonsils, mandible, vulva or spine. To the best of our knowledge, there have been no reports of leptomeningeal metastasis of LCNEC to date. The present case report describes an unusual case of leptomeningeal metastasis from pulmonary LCNEC alongside a review of the literature...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28943932/increased-expression-of-bpi-fold-containing-family-a-member-1-is-associated-with-metastasis-and-poor-prognosis-in-human-colorectal-carcinoma
#2
Huanan Wang, Dongmei Jiang, Wenlu Li, Shuang Wang
Bactericidal or permeability-increasing protein fold-containing family A member 1 (BPIFA1) has been demonstrated to be involved in inflammatory responses in the upper airway and the progression of non-small cell lung cancer. However, the expression levels of BPIFA1 and its clinical prognostic significance in colorectal carcinoma (CRC) has not yet been elucidated. Reverse transcription-polymerase chain reaction and immunohistochemistry were used to analyze the expression levels of BPIFA1 in CRC and normal mucosal tissues...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28943152/ferrerol-overcomes-the-invasiveness-of-lung-squamous-cell-carcinoma-cells-by-regulating-the-expression-of-inducers-of-epithelial-mesenchymal-transition
#3
Bin Li, Peng Chen, Jie-Hua Wang, Li Li, Jin-Lan Gong, Hui Yao
In recent years Epithelial Mesenchymal Transition (EMT) has been proposed as a mechanism indispensible to acquisition of metastatic properties by tumor cells. In this study we tested the ability of Ferrerol, a Chinese herb-derived compound to ablate the EMT in human lung squamous cell carcinoma cells. Human lung squamous cell carcinoma cells, Calu-1 were treated with various concentrations of Ferrerol for 24 h to examine its effect on their viability by the MTT assay. Only those concentrations which showed least effect on the viability of Calu-1 cells were further used to evaluate the expression of epithelial and mesenchymal markers by western blotting...
September 21, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28943105/a549-cells-as-a-model-to-study-endogenous-lpa1-receptor-signaling-and-regulation
#4
Gabriel Carmona-Rosas, Marco A Alfonzo-Méndez, David A Hernández-Espinosa, M Teresa Romero-Ávila, J Adolfo García-Sáinz
Lysophosphatidic acid (LPA) modulates the function of many organs, including the lung. A549 is a lung carcinoma-derived cell line, frequently used as a model for type II pneumocytes. Here we show that these cells expressed messenger RNA coding for LPA1-3 receptors with the following order of abundance: LPA1 > LPA2 > LPA3 and that LPA was able to increase intracellular calcium, extracellular signal-regulated kinases 1/2 phosphorylation, and cell contraction. These effects were blocked by Ki16425, an antagonist selective for LPA1 and LPA3 receptors, and by the LPA1-selective antagonist, AM095...
September 21, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28942831/effect-of-tetramethylpyrazine-combined-with-cisplatin-on-vegf-klf4-and-adamts1-in-lewis-lung-cancer-mice
#5
Jian-Hua Tang, He-Min Zhang, Zhi-Hua Zhang, Xiu-Long Zhang
OBJECTIVE: To further explore the function of combine use of tetramethylpyrazine (TMP) and cisplatin (DDP) in lung carcinoma. METHODS: We used the combination drug to treat Lewis lung cancer mice, investigated the expression level of vascular endothelial growth factor (VEGF), Kruppel-like factor 4 (KLF4) and A disintegrin and metalloproteinase with thrombospondin motifs 1 (ADAMTS1) and to further explore the inhibitory effects and potential mechanism of TMP combined with DDP on tumor angiogenesis...
August 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28940895/mir-339-5p-downregulation-contributes-to-taxol-resistance-in-small-cell-lung-cancer-by-targeting-%C3%AE-1-2-fucosyltransferase-1
#6
Chong-Zhi Gan, Gang Li, Qing-Song Luo, Hong-Min Li
Lung cancer is a leading cause of cancer-related mortality, and non-small-cell lung carcinoma is responsible for almost 80% of lung cancer-related deaths. In recent years, lung cancer has shown increasing incidence but poor prognosis, and many studies have demonstrated that microRNAs play crucial roles in the development of lung carcinoma and chemoresistance. This study investigated the role of miR-339-5p involvement in lung carcinoma cell lines and chemoresistance to Taxol. We observed that miR-339-5p was significantly downregulated in Taxol-A549 cells compared with A549 cells...
September 22, 2017: IUBMB Life
https://www.readbyqxmd.com/read/28940455/probability-of-cancer-in-high-risk-patients-predicted-by-the-protein-based-lung-cancer-biomarker-panel-in-china-lcbp-study
#7
Dawei Yang, Xiaoju Zhang, Charles A Powell, Jun Ni, Bin Wang, Jianya Zhang, Yafei Zhang, Lijie Wang, Zhihong Xu, Li Zhang, Guoming Wu, Yong Song, Wenhua Tian, Jia-An Hu, Yong Zhang, Jie Hu, Qunying Hong, Yuanlin Song, Jian Zhou, Chunxue Bai
BACKGROUND: The authors built a model for lung cancer diagnosis previously based on the blood biomarkers progastrin-releasing peptide (ProGRP), carcinoembryonic antigen (CEA), squamous cell carcinoma antigen (SCC), and cytokeratin 19 fragment (CYFRA21-1). In the current study, they examined whether modification of the model to include relevant clinical information, risk factors, and low-dose chest computed tomography screening would improve the performance of the biomarker panel in large cohorts of Chinese adults...
September 20, 2017: Cancer
https://www.readbyqxmd.com/read/28938699/change-from-lung-adenocarcinoma-to-small-cell-lung-cancer-as-a-mechanism-of-resistance-to-afatinib
#8
Paolo Manca, Marco Russano, Francesco Pantano, Giuseppe Tonini, Daniele Santini
We report the case of a patient affected by advanced EGFR mutation-positive lung who experienced resistance to therapy during treatment with Afatinib through the occurrence of a switch of tumor histotype to small cell lung cancer (SCLC) with features of a G3 neuroendocrine carcinoma. Unexpectedly, the switch to SCLC histotype occurred in the only site not responsive to afatinib and subsequently the most responsive to chemotherapy. Our case shows that occurrence of switch to SCLC is a possible mechanism of resistance during treatment with Afatinib...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938652/correlation-between-apparent-diffusion-coefficient-adc-and-cellularity-is-different-in-several-tumors-a-meta-analysis
#9
Alexey Surov, Hans Jonas Meyer, Andreas Wienke
The purpose of this meta-analysis was to provide clinical evidence regarding relationship between ADC and cellularity in different tumors based on large patient data. Medline library was screened for associations between ADC and cell count in different tumors up to September 2016. Only publications in English were extracted. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement (PRISMA) was used for the research. Overall, 39 publications with 1530 patients were included into the analysis...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938599/a-pathways-based-prediction-model-for-classifying-breast-cancer-subtypes
#10
Tong Wu, Yunfeng Wang, Ronghui Jiang, Xinliang Lu, Jiawei Tian
Breast cancer is highly heterogeneous and is classified into four subtypes characterized by specific biological traits, treatment responses, and clinical prognoses. We performed a systemic analysis of 698 breast cancer patient samples from The Cancer Genome Atlas project database. We identified 136 breast cancer genes differentially expressed among the four subtypes. Based on unsupervised clustering analysis, these 136 core genes efficiently categorized breast cancer patients into the appropriate subtypes. Functional enrichment based on Kyoto Encyclopedia of Genes and Genomes analysis identified six functional pathways regulated by these genes: JAK-STAT signaling, basal cell carcinoma, inflammatory mediator regulation of TRP channels, non-small cell lung cancer, glutamatergic synapse, and amyotrophic lateral sclerosis...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938570/pd-l1-expression-as-poor-prognostic-factor-in-patients-with-non-squamous-non-small-cell-lung-cancer
#11
Cuiling Zhou, Jianjun Tang, Huanhuan Sun, Xiaobin Zheng, Zhanyu Li, Tiantian Sun, Jie Li, Shuncong Wang, Xiuling Zhou, Hongliu Sun, Zhibin Cheng, Hongyu Zhang, Haiqing Ma
OBJECTIVES: The role of programmed cell death ligand 1 (PD-L1) in non-small cell lung cancer (NSCLC), especially according to histologic type, remains controversial. The purpose of this study was to assess PD-L1 expression and its association with overall survival (OS) and clinicopathologic characteristics in NSCLC. MATERIALS AND METHODS: Formalin-fixed paraffin-embedded specimens were obtained from 108 patients with surgically resected primary NSCLC. PD-L1 expression was assessed via immunohistochemistry using a histochemistry score system...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938544/sialyllactose-suppresses-angiogenesis-by-inhibiting-vegfr-2-activation-and-tumor-progression
#12
Tae-Wook Chung, Eun-Young Kim, Seok-Jo Kim, Hee-Jung Choi, Se Bok Jang, Keuk-Jun Kim, Sun-Hyung Ha, Fukushi Abekura, Choong-Hwan Kwak, Cheorl-Ho Kim, Ki-Tae Ha
The oligosaccharides in human milk have various biological functions. However, the molecular mechanism(s) underlying the anti-angiogenic action of sialylated human milk oligosaccharides (HMOs) are still unclear. Here, we show that siallylactose (SL) found in human milk can inhibit the activation of vascular endothelial growth factor (VEGF)-mediated VEGF receptor-2 (VEGFR-2) by binding to its VEGF binding site (second and third IgG-like domains), thus blocking downstream signal activation. SL also inhibits growth of VEGF-stimulated endothelial cells...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28937686/serine-392-phosphorylation-modulates-p53-mitochondrial-translocation-and-transcription-independent-apoptosis
#13
Cédric Castrogiovanni, Béranger Waterschoot, Olivier De Backer, Patrick Dumont
The tumor suppressor p53 is a key regulator of apoptosis induced by various cellular stresses. p53 can induce apoptosis by two mechanisms. First, p53 acts as a transcription factor inducing and repressing pro-apoptotic and anti-apoptotic targets genes, respectively. Second, p53 is able to translocate to the mitochondria, where it interacts with BCL-2 family members to induce membrane permeabilization and cytochrome c release. p53 transcriptional activity is regulated by a set of post-translational modifications that have been well documented...
September 22, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28937391/metastasis-within-a-metastasis-to-the-thyroid-a-rare-phenomenon
#14
Yin Ping Wong, Khairunisa Ahmad Affandi, Geok Chin Tan, Rohaizak Muhammad
Metastatic disease involving the thyroid gland is uncommon. Solitary thyroid metastases from various primary sites particularly kidney, lung, and breast had been previously described. To the best of our knowledge, metastases from two topographically separate primary malignancies to the thyroid have never been documented hitherto. This is the first reported case of cancer-to-cancer metastasis involving an invasive breast carcinoma metastasized within a metastatic renal cell carcinoma in the nonneoplastic thyroid in a 58-year-old woman...
July 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28937318/the-crosstalk-between-p38-and-akt-signaling-pathways-orchestrates-emt-by-regulating-satb2-expression-in-nsclc-cells
#15
Hakan Kucuksayan, Hakan Akca
Epithelial-mesenchymal transition is a crucial event for metastasis and could be mediated by several pathways such as phosphoinositide 3-kinase/Akt, mitogen-activated protein kinases, as well as many epigenetic regulators. Special AT-rich sequence-binding protein 2 is an epigenetic regulator involved in epithelial-mesenchymal transition and osteoblastic differentiation. It has been reported that the crosstalk between several pathways is responsible for the regulation of epithelial-mesenchymal transition in cancer cells...
September 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28935774/immunotherapy-a-new-and-old-approach-to-treatment-of-soft-tissue-and-bone-sarcomas
#16
REVIEW
Michael J Nathenson, Anthony P Conley, Edward Sausville
Soft tissue and bone sarcomas are a rare and heterogeneous form of cancer. With standard of care treatment options including surgery, radiation, and chemotherapy, the long-term survival is still low for high-risk soft tissue sarcoma patients. New treatment strategies are needed. Immunotherapy offers a new potential treatment paradigm with great promise. Immunotherapy of soft tissue sarcomas dates back to Dr. Coley's first use of toxins in the late 1800s. A variety of strategies of immunotherapy have been tried in soft tissue and bone sarcomas, including various vaccines and cytokines, with limited success...
September 21, 2017: Oncologist
https://www.readbyqxmd.com/read/28935346/resection-of-the-tracheobronchial-bifurcation-with-complete-preservation-of-lung-parenchyma
#17
Georgios Stamatis, Sylvia Fechner, Miguel Rocha, Gerhard Weinreich
BACKGROUND: The resection of the tracheobronchial bifurcation with complete preservation of lung parenchyma remains a challenge owing to the limited indications for surgery, anesthesiologic management, operative technique, and postoperative course. The aim of this retrospective study was to evaluate factors influencing the perioperative course and long-term survival. METHODS: Between 1989 and 2014, 19 patients underwent a resection of the distal trachea and carina with complete preservation of lung tissue, 16 for malignant tumors (7 adenoid cystic carcinomas, 3 carcinoid tumors, 3 mucoepidermoid tumors, 2 squamous cell carcinomas, and 1 small cell carcinomas), 2 for inflammatory stenosis, and 1 after a complex traumatic rupture...
September 18, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28935021/-one-case-about-primary-pulmonary-squamous-cell-carcinoma-%C3%A2-with-retinal-metastasis
#18
Jinxia Liu, Xiqian Gao, Mindan Sun
Lung cancer is a common malignant tumor in clinic. Morbidity and mortality are the first place in cancer, which seriously threaten the health of human beings. Due to the lack of effective and specific screening methods, most patients were found already at an advanced stage, and often combined with bone, brain, liver, adrenal and other parts of the metastasis. Symptoms of patient resulted from the primary tumor, metastatic spread, or paraneoplastic syndrome commonly cause the medical attention. For the syndrome related to the distant metastatic spread as the first manifestation, diagnosis would be a challenge...
September 20, 2017: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/28934992/breast-cancer-metastases-to-the-thyroid-gland-an-uncommon-sentinel-for-diffuse-metastatic-disease-a-case-report-and-review-of-the-literature
#19
Agata M Plonczak, Aimee N DiMarco, Roberto Dina, Dorothy J Gujral, Fausto F Palazzo
BACKGROUND: Metastases to the thyroid are rare. The most common primary cancer to metastasize to the thyroid is renal cell carcinoma, followed by malignancies of the gastrointestinal tract, lungs, and skin, with breast cancer metastases to the thyroid being rare. Overall, the outcomes in malignancies that have metastasized to the thyroid are poor. There are no prospective studies addressing the role of surgery in metastatic disease of the thyroid. Isolated thyroidectomy has been proposed as a local disease control option to palliate and prevent the potential morbidity of tumor extension related to the airway...
September 22, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28933588/death-by-over-eating-the-gaucher-disease-associated-gene-gba1-identified-in-a-screen-for-mediators-of-autophagic-cell-death-is-necessary-for-developmental-cell-death-in-drosophila-midgut
#20
Santosh K Dasari, Eyal Schejter, Shani Bialik, Aya Shkedy, Vered Levin-Salomon, Smadar Levin-Zaidman, Adi Kimchi
Autophagy is critical for homeostasis and cell survival during stress, but can also lead to cell death, a little understood process that has been shown to contribute to developmental cell death in lower model organisms, and to human cancer cell death. We recently reported (1) on our thorough molecular and morphologic characterization of an autophagic cell death system involving resveratrol treatment of lung carcinoma cells. To gain mechanistic insight into this death program, we performed a signalome-wide RNAi screen for genes whose functions are necessary for resveratrol-induced death...
September 21, 2017: Cell Cycle
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