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https://www.readbyqxmd.com/read/29676587/a-potential-role-for-exosomal-tctp-export-in-vascular-remodeling-in-pulmonary-arterial-hypertension
#1
Elisabet Ferrer, Benjamin J Dunmore, Dhiya Hassan, Mark L Ormiston, Stephen Moore, John Deighton, Lu Long, Xu Dong Yang, Duncan J Stewart, Nicholas W Morrell
Pulmonary arterial hypertension (PAH) is characterized by increased proliferation and resistance to apoptosis of pulmonary vascular cells. Increased expression of translationally controlled tumor protein (TCTP), a pro-survival and anti-apoptotic mediator, has recently been demonstrated in patients with hereditary PAH (HPAH) although its role in the pathobiology of PAH remains unclear. Silencing of TCTP in blood outgrowth endothelial cells (BOECs) isolated from control subjects led to significant changes in morphology, cytoskeletal organization, increased apoptosis and decreased directionality during migration...
April 20, 2018: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/29676474/a-rare-case-of-ewing-s-sarcoma-primitive-neuroectodermal-tumor-metastasizing-to-left-atrium-through-left-inferior-pulmonary-vein
#2
Suraj K Kulkarni, Nagaraj Moorthy, Shankar Somanna, Manjunath Cholenahally Nanjappa
Cardiac metastasis of Ewing's sarcoma is exceedingly rare. A 40-year-old male was admitted with complaints of nonproductive cough, exertional dyspnea, and fatigue since 4 months with a history of abdominal wall swelling which was excised and proven to be Ewing's sarcoma/primitive neuroectodermal tumor (PNET). A transthoracic echocardiography demonstrated inhomogeneous mass located posterior to the left ventricle and a solitary mass protruding into the left atrium through the left inferior pulmonary vein. Due to accompanying pulmonary metastasis and possible poor outcome of the surgery, surgical resection was not considered...
April 20, 2018: Echocardiography
https://www.readbyqxmd.com/read/29675860/pulmonary-pleomorphic-carcinoma-a-case-harboring-egfr-mutation-treated-with-egfr-tkis
#3
Ken Masuda, Takaaki Tokito, Koichi Azuma, Eriko Yanagida, Masayuki Nakamura, Yoshiko Naito, Norikazu Matsuo, Hidenobu Ishii, Kazuhiko Yamada, Jun Akiba, Tomoaki Hoshino
Pulmonary pleomorphic carcinoma (PPC) is a very rare type of primary lung cancer with an aggressive clinical course. Few reports have documented therapeutic options for PPC with EGFR mutations. Herein, we report a case of PPC with EGFR mutation treated with EGFR-tyrosine kinase inhibitors (TKIs). A 65-year-old Japanese woman was diagnosed with stage IV lung adenocarcinoma with L858R point mutation in exon 21. Despite treatment with erlotinib, the patient died after two weeks as a result of rapid disease progression...
April 19, 2018: Thoracic Cancer
https://www.readbyqxmd.com/read/29675281/coexistent-non-small-cell-carcinoma-and-small-cell-carcinoma-in-a-patient-presenting-with-hyponatremia
#4
Mitchell D Ross, Sreeja Biswas Roy, Pradnya D Patil, Jasmine L Huang, Nitika Thawani, Ralph Drosten, Tanmay S Panchabhai
Despite recent advances in screening methods, lung cancer remains the leading cause of cancer-related deaths worldwide. By the time lung cancer becomes symptomatic and patients seek treatment, it is often too advanced for curative measures. Low-dose computed tomography (CT) screening has been shown to reduce mortality in patients at high risk of lung cancer. We present a 66-year-old man with a 50-pack-year smoking history who had a right upper lobe (RUL) pulmonary nodule and left lower lobe (LLL) consolidation on a screening CT...
2018: Case Reports in Pulmonology
https://www.readbyqxmd.com/read/29674691/aloperine-protects-mice-against-bleomycin-induced-pulmonary-fibrosis-by-attenuating-fibroblast-proliferation-and-differentiation
#5
Wanling Yin, Jing Han, Zhijun Zhang, Zaomu Han, Siyuan Wang
Aloperine is a quinolizidine alkaloid extracted from Sophora alopecuroides. It has been proven to alleviate oxidative stress and effectively promote tumor cell apoptosis in mice. Herein, we investigated whether aloperine could also mediate its protective effects on bleomycin (BLM)-induced pulmonary fibrosis. Pathological staining, western blot, RT-PCR and flow cytometry were used to evaluate the impact of aloperine on the development of pulmonary fibrosis. The effect of aloperine on fibroblast proliferation, differentiation and related signaling pathways were next investigated to demonstrate the underlying mechanisms...
April 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29673080/systemic-sclerosis-and-malignancy
#6
Gokhan Sargin, Taskin Senturk, Songul Cildag
BACKGROUND: Systemic sclerosis (SSc) has increased risk of morbidity and mortality due to pulmonary fibrosis, pulmonary arterial hypertension, renal crisis, infections and malignancies. Chemical exposure, smoking and cytotoxic drugs increase the malignancy risk in rheumatic diseases including SSc. We aim to evaluate characteristics, identify risk factors and mortality in SSc patients with malignancies. METHODS: One hundred and fifty-three patients with SSc (24 male, 129 female, with mean age of 56...
April 19, 2018: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/29670467/trail-dependent-resolution-of-pulmonary-fibrosis
#7
David M Habiel, Ana Paula Moreira, Ugur B Ismailoglu, Michael P Dunleavy, Karen A Cavassani, Nico van Rooijen, Ana Lucia Coelho, Cory M Hogaboam
Idiopathic pulmonary fibrosis (IPF) is the most common form of interstitial lung disease characterized by the persistence of activated myofibroblasts resulting in excessive deposition of extracellular matrix proteins and profound tissue remodeling. In the present study, the expression of tumor necrosis factor- (TNF-) related apoptosis-inducing ligand (TRAIL) was key to the resolution of bleomycin-induced pulmonary fibrosis. Both in vivo and in vitro studies demonstrated that Gr-1+ TRAIL+ bone marrow-derived myeloid cells blocked the activation of lung myofibroblasts...
2018: Mediators of Inflammation
https://www.readbyqxmd.com/read/29669930/tsc2-deficient-tumors-have-evidence-of-t-cell-exhaustion-and-respond-to-anti-pd-1-anti-ctla-4-immunotherapy
#8
Heng-Jia Liu, Patrick H Lizotte, Heng Du, Maria C Speranza, Hilaire C Lam, Spencer Vaughan, Nicola Alesi, Kwok-Kin Wong, Gordon J Freeman, Arlene H Sharpe, Elizabeth P Henske
Tuberous sclerosis complex (TSC) is an incurable multisystem disease characterized by mTORC1-hyperactive tumors. TSC1/2 mutations also occur in other neoplastic disorders, including lymphangioleiomyomatosis (LAM) and bladder cancer. Whether TSC-associated tumors will respond to immunotherapy is unknown. We report here that the programmed death 1 coinhibitory receptor (PD-1) is upregulated on T cells in renal angiomyolipomas (AML) and pulmonary lymphangioleiomyomatosis (LAM). In C57BL/6J mice injected with syngeneic TSC2-deficient cells, anti-PD-1 alone decreased 105K tumor growth by 67% (P < 0...
April 19, 2018: JCI Insight
https://www.readbyqxmd.com/read/29669530/small-cell-and-non-small-cell-lung-cancer-form-metastasis-on-cellular-4d-lung-model
#9
Dhruva K Mishra, Ross A Miller, Kristi A Pence, Min P Kim
BACKGROUND: Metastasis is the main cause of death for lung cancer patients. The ex vivo 4D acellular lung model has been shown to mimic this metastatic process. However, the main concern is the model's lack of cellular components of the tumor's microenvironment. In this study, we aim to determine if the intact lung microenvironment will still allow lung cancer metastasis to form. METHODS: We harvested a heart-lung block from a rat and placed it in a bioreactor after cannulating the pulmonary artery, trachea and tying the right main bronchus for 10-15 days without any tumor cells as a control group or with NSCLC (A549, H1299 or H460), SCLC (H69, H446 or SHP77) or breast cancer cell lines (MCF7 or MDAMB231) through the trachea...
April 18, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29667945/pulmonary-sarcoidosis-induced-by-anti-tumor-necrosis-factor-therapy-a-paradoxical-effect
#10
Alisson Aliel Vigano Pugliesi, Rachel Zerbini Mariano, Camila Matsunaga De Angelis, Manoel Barros Bertolo, Michel Alexandre Yazbek
No abstract text is available yet for this article.
April 5, 2018: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/29667131/pulmonary-embolism-following-incomplete-surgical-resection-of-a-right-ventricular-myxoma-a-case-report-and-review-of-the-literature
#11
Yazan Assaf, Maher Nasser, Hani Jneid, David Ott
Right ventricular (RV) myxomas are extremely rare, but may have dreadful clinical sequelae including pulmonary embolism (PE). We present a case of a patient who had an RV myxoma that was attached to the tricuspid valve, and therefore could not be resected completely during surgery, and remnants of the tumor were seen on transthoracic echocardiogram during post-operative follow-up. Five months after surgery, the patient had PE, which could be due to tumor emboli or thromboemboli. Since repeat surgical resection was not feasible, the patient was started on warfarin...
April 17, 2018: Cardiology and Therapy
https://www.readbyqxmd.com/read/29666296/phase-ii-study-to-evaluate-the-efficacy-and-safety-of-rilotumumab-and-bevacizumab-in-subjects-with-recurrent-malignant-glioma
#12
Mary Lou Affronti, Jennifer Gamboa Jackman, Frances McSherry, James E Herndon, Elwood C Massey, Eric Lipp, Annick Desjardins, Henry S Friedman, Gordana Vlahovic, James Vredenburgh, Katherine B Peters
LESSONS LEARNED: Due to evolving imaging criteria in brain tumors and variation in magnetic resonance imaging evaluation, it is not ideal to use response rate as a primary objective. Future studies involving antiangiogenic agents should use overall survival.Disease-expected toxicities should be considered when defining the clinical significance of an adverse event. For example, vascular thromboembolic events are common in brain tumor patients and should not be attributed to the study drug in the safety analysis...
April 17, 2018: Oncologist
https://www.readbyqxmd.com/read/29665093/the-mapk-activator-protein-1-signaling-regulates-changes-in-lung-tissue-of-rat-exposed-to-hypobaric-hypoxia
#13
Mrinalini Singh, Seema Yadav, Meetul Kumar, Shweta Saxena, Deepika Saraswat, Anju Bansal, Shashi B Singh
This study reports the role of MAPKs (JNK, ERK, and p38), and activator protein-1 (AP-1) transcription factor in the hypobaric hypoxia induced change in lung tissue. Healthy male Sprague-Dawley rats were exposed to hypobaric hypoxia for 6, 12, 24, 48, 72, and 120 hr. Hypoxia resulted in significant increase in reactive oxygen species (ROS), vascular endothelial growth factor (VEGF) and decreased nitric oxide (NO), these act as signaling molecules for activation of MAPK and also contribute in development of vascular leakage (an indicator of pulmonary edema) as confirmed by histological studies...
April 17, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29663398/transition-of-the-programmed-death-1-pathway-from-the-primary-colorectal-cancer-to-its-corresponding-pulmonary-metastasis
#14
Ei Miyamoto, Toyofumi F Chen-Yoshikawa, Chiyuki Ueshima, Akihiko Yoshizawa, Masatsugu Hamaji, Takamasa Yamamoto, Kenji Kawada, Hironori Haga, Yoshiharu Sakai, Hiroshi Date
BACKGROUND AND OBJECTIVES: The inhibition of the programmed death 1 (PD-1)/its ligand 1 (PD-L1) pathway may be associated with clinical responses in colorectal cancer (CRC). We aimed to characterize the transition of PD-1/PD-L1 expression through pulmonary metastasis (PM) and its clinical relevance. METHODS: This study retrospectively reviewed 50 patients who had curative resection of primary CRC and its PM. We evaluated the presence of PD-1+ tumor-infiltrating lymphocytes (TILs) and PD-L1+ tumor cells in both the primary tumor and its PM by immunohistochemistry...
April 17, 2018: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29662557/ct-radiomics-in-thoracic-oncology-technique-and-clinical-applications
#15
REVIEW
Geewon Lee, So Hyeon Bak, Ho Yun Lee
Precision medicine offers better treatment options and improved survival for cancer patients based on individual variability. As the success of precision medicine depends on robust biomarkers, the requirement for improved imaging biomarkers that reflect tumor biology has grown exponentially. Radiomics, the field of study in which high-throughput data are generated and large amounts of advanced quantitative features are extracted from medical images, has shown great potential as a source of quantitative biomarkers in the field of oncology...
April 2018: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29661726/detection-of-synchronous-primary-lung-adenocarcinomas-with-genomic-sequencing
#16
Debra Berry, Mani Mahadevan, Mark R Wick
In the setting of synchronous pulmonary carcinomas, distinguishing between a monoclonal process with intrapulmonary metastasis and two independent tumors has significant therapeutic and prognostic implications. We describe two cases in which molecular profiling was used to characterize synchronous, primary pulmonary tumors and guide clinical management. In both cases, the patients underwent surgical resection without adjuvant chemotherapy or radiation and remain free of disease.
January 11, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29660899/plasma-exosome-levels-in-non-small-cell-lung-cancer-correlation-with-clinicopathological-features-and-prognostic-implications
#17
Qingyun Liu, Ying Xiang, Shuai Yuan, Weijia Xie, Chengying Li, Zeyao Hu, Ying Xiang, Na Wu, Long Wu, Zubin Yu, Li Bai, Yafei Li
BACKGROUND: Biomarker studies revealed important clinical significance of exosome for cancer patients. However, there is currently no consensus on exosome quantification methods. METHODS: Bicinchoninic acid (BCA) method, acetylcholinesterase (AChE) method and nanoparticle tracking analysis (NTA) were utilized to quantify 20 plasma exosome samples, and interrelations between these three methods were explored. Associations of plasma exosome levels with characteristics and prognosis of 208 non-small-cell lung cancer (NSCLC) patients were investigated...
April 3, 2018: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/29660595/computer-assisted-subtyping-and-prognosis-for-non-small-cell-lung-cancer-patients-with-unresectable-tumor
#18
Maliazurina Saad, Tae-Sun Choi
BACKGROUND: The histological classification or subtyping of non-small cell lung cancer is essential for systematic therapy decisions. Differentiating between the two main subtypes of pulmonary adenocarcinoma and squamous cell carcinoma highlights the considerable differences that exist in the prognosis of patient outcomes. Physicians rely on a pathological analysis to reveal these phenotypic variations that requires invasive methods, such as biopsy and resection sample, but almost 70% of tumors are unresectable at the point of diagnosis...
April 4, 2018: Computerized Medical Imaging and Graphics: the Official Journal of the Computerized Medical Imaging Society
https://www.readbyqxmd.com/read/29660031/meningioma-transcription-factors-link-cell-lineage-with-systemic-metabolic-cues
#19
Ziming Du, Ryan Brewster, Parker H Merrill, Juliann Chmielecki, Josh Francis, Ayal Aizer, Malak Abedalthagafi, Lynette M Sholl, Lars Geffers, Brian Alexander, Sandro Santagata
Background: Tumor cells recapitulate cell-lineage transcriptional programs that are characteristic of normal tissues from which they arise. It is unclear why such lineage programs are fatefully maintained in tumors and if they contribute to cell proliferation and viability. Methods: Here, we used the most common brain tumor, meningioma, which is strongly associated with female gender and high body mass index (BMI), as a model system to address these questions. We screened expression profiling data to identify the transcription factor (TF) genes which are highly enriched in meningioma, and characterized the expression pattern of those TFs and downstream genes in clinical meningioma samples as well as normal brain tissues...
April 12, 2018: Neuro-oncology
https://www.readbyqxmd.com/read/29659181/combination-of-anginex-gene-therapy-and-radiation-decelerates-the-growth-and-pulmonary-metastasis-of-human-osteosarcoma-xenografts
#20
Kai Zhao, Shang-You Yang, Jun Geng, Xuan Gong, Weiming Gong, Lin Shen, Bin Ning
Investigate whether rAAV-anginex gene therapy combined with radiotherapy could decrease growth and pulmonary metastasis of osteosarcoma in mice and examine the mechanisms involved in this therapeutic strategy. During in vitro experiment, multiple treatment regimes (rAAV-eGFP, radiotherapy, rAAV-anginex, combination therapy) were applied to determine effects on proliferation of endothelial cells (ECs) and G-292 osteosarcoma cells. During in vivo analysis, the same multiple treatment regimes were applied to osteosarcoma tumor-bearing mice...
April 16, 2018: Cancer Medicine
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