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https://www.readbyqxmd.com/read/28514755/a-novel-serum-based-biomarker-panel-has-complementary-ability-to-preclude-presence-of-early-lung-cancer-for-low-dose-ct-ldct
#1
Xiaobing Wang, Xiuyi Zhi, Zhaogang Yang, Haimei Tian, Yanfen Li, Mo Li, Wenya Zhao, Chao Zhang, Teng Wang, Jing Liu, Di Shen, Cuining Zheng, Dan Zhao, Sheng Yang, Jun Qi, Hongwu Xin, Alexander Stojadinovic, Itzhak Avital, L James Lee, Jianyu Rao, Wei Zhang
Low Dosage Computerized Tomography (LDCT) has been shown to improve early detection of lung cancer and mortality rates in high-risk individuals, which was, however, limited by specifically coverage for heavy smokers and high rates of false positivity. Here, we aim to investigate a novel biomarker for early detection of lung cancer, and further extend to concentrate high-risk subjects for increasing specificity and coverage of LDCT. We performed retrospective blinded evaluation of lung cancer and healthy controls in training and validation cohorts...
April 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28514441/pd-1-expression-by-tumour-associated-macrophages-inhibits-phagocytosis-and-tumour-immunity
#2
Sydney R Gordon, Roy L Maute, Ben W Dulken, Gregor Hutter, Benson M George, Melissa N McCracken, Rohit Gupta, Jonathan M Tsai, Rahul Sinha, Daniel Corey, Aaron M Ring, Andrew J Connolly, Irving L Weissman
Programmed cell death protein 1 (PD-1) is an immune checkpoint receptor that is upregulated on activated T cells for the induction of immune tolerance. Tumour cells frequently overexpress the ligand for PD-1, programmed cell death ligand 1 (PD-L1), facilitating their escape from the immune system. Monoclonal antibodies that block the interaction between PD-1 and PD-L1, by binding to either the ligand or receptor, have shown notable clinical efficacy in patients with a variety of cancers, including melanoma, colorectal cancer, non-small-cell lung cancer and Hodgkin's lymphoma...
May 17, 2017: Nature
https://www.readbyqxmd.com/read/28512410/rrx-001-priming-of-pd-1-inhibition-in-the-treatment-of-small-cell-carcinoma-of-the-vagina-a-rare-gynecological-tumor
#3
Christina Brzezniak, Bryan Oronsky, Jane Trepel, Thomas A Summers, Pedro Cabrales, Min-Jung Lee, Regina Day, Saheli Jha, Scott Caroen, Karen Zeman, Lindsey Ferry, Cindy Harmer, Neil Oronsky, Michelle Lybeck, Harry E Lybeck, James F Brown, Tony R Reid, Corey A Carter
Small cell carcinoma of the vagina is rare, so rare in fact that the total number reported in English-language journals is less than 30. Due to this extremely low incidence, no specific treatment guidelines have been established, and most of what is clinically known is derived from a handful of single case reports. However, as befitting its highly aggressive histologic features, which are reminiscent of small cell lung cancer (SCLC), first-line treatment is modeled after SCLC. Herein is reported the case of a 51-year-old African-American patient with metastatic biopsy-proven small cell carcinoma of the vagina that progressed through multiple therapies: first-line cisplatin and etoposide (making it platinum-resistant) and radiotherapy, followed by the tumor macrophage-stimulating agent RRx-001 in a clinical trial called QUADRUPLE THREAT, which per protocol preceded a mandated rechallenge with cisplatin and etoposide...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28507549/human-lung-mononuclear-phagocytes-in-health-and-disease
#4
REVIEW
Faezzah Baharom, Gregory Rankin, Anders Blomberg, Anna Smed-Sörensen
The lungs are vulnerable to attack by respiratory insults such as toxins, allergens, and pathogens, given their continuous exposure to the air we breathe. Our immune system has evolved to provide protection against an array of potential threats without causing collateral damage to the lung tissue. In order to swiftly detect invading pathogens, monocytes, macrophages, and dendritic cells (DCs)-together termed mononuclear phagocytes (MNPs)-line the respiratory tract with the key task of surveying the lung microenvironment in order to discriminate between harmless and harmful antigens and initiate immune responses when necessary...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28489104/spatially-resolved-profiling-of-carbon-nanotube-uptake-across-cell-lines
#5
H D Summers, P Rees, J T-W Wang, K T Al-Jamal
The internalisation and intra-cellular distribution of carbon nanotubes (CNT) has been quantitatively assessed using imaging flow cytometry. Spatial analysis of the bright field images indicates the presence of a small sub-population (5% of cells) in which the internalised CNTs are packed into pronounced clusters, visible as dark spots due to strong optical scattering by the nanotubes. The area of these spots can be used as a label-free metric of CNT dose and we assess the relative uptake of charge-neutral CNTs, over a 24 hours exposure period across four cell types: J774 mouse macrophage cells, A549 and Calu-6 human lung cancer cells, and MCF-7 human breast cells...
May 10, 2017: Nanoscale
https://www.readbyqxmd.com/read/28484448/anti-cd47-antibody-as-a-targeted-therapeutic-agent-for-human-lung-cancer-and-cancer-stem-cells
#6
Liang Liu, Lin Zhang, Lin Yang, Hui Li, Runmei Li, Jinpu Yu, Lili Yang, Feng Wei, Cihui Yan, Qian Sun, Hua Zhao, Fan Yang, Hao Jin, Jian Wang, Shizhen Emily Wang, Xiubao Ren
Accumulating evidence indicates that a small subset of cancer cells, termed the tumor-initiating cells or cancer stem cells (CSCs), construct a reservoir of self-sustaining cancer cells with the characteristic ability to self-renew and maintain the tumor mass. The CSCs play an important role in the tumor initiation, development, relapse, metastasis, and the ineffectiveness of conventional cancer therapies. CD47 is a ligand for signal-regulatory protein-α expressed on phagocytic cells and functions to inhibit phagocytosis...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28476594/studying-in-vitro-phagocytosis-of-apoptotic-cancer-cells-by-recombinant-gmcsf-treated-raw-264-7-macrophages
#7
Vanitha Selvarajan, Anil Parsram Bidkar, Rajib Shome, Aditi Banerjee, Nidhi Chaubey, Siddhartha S Ghosh, Pallab Sanpui
Granulocyte macrophage colony stimulating factor (GMCSF), a therapeutically important cytokine that helps in the proliferation of macrophages, was recombinantly expressed in E. coli BL21 and purified as a GST-tagged protein. Cell viability assay demonstrated significant enhancement in proliferation of RAW 264.7 (murine macrophage) in presence of GMCSF. In vitro activation of macrophages was carried out by lipopolysaccharide (LPS) or pyrogallol and probed by the generation of reactive oxygen species (ROS). Following the induction of apoptosis in A549 lung cancer cells with anticancer drug cisplatin (at 25μM), apoptotic cancer cells were effectively phagocytosed by the recombinant GMCSF-treated and exogenously activated RAW 264...
May 2, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28465192/lung-inflammation-and-genotoxicity-in-mice-lungs-after-pulmonary-exposure-to-candle-light-combustion-particles
#8
Astrid Skovmand, Ana Cecilia Damiao Gouveia, Ismo Kalevi Koponen, Peter Møller, Steffen Loft, Martin Roursgaard
Candle burning produces a large amount of particles that contribute substantially to the exposure to indoor particulate matter. The exposures to various types of combustion particles, such as diesel exhaust particles, have been associated with increased risk of lung cancer by mechanisms that involve oxidative stress, inflammation and genotoxicity. The aim of this study was to compare pulmonary effects of candle light combustion particles (CP) with two benchmark diesel exhaust particles (A-DEP and SRM2975). Intratracheal (i...
April 29, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28454399/inhibition-of-lung-cancer-growth-by-hangamdan-b-is-mediated-by-macrophage-activation-to-m1-subtype
#9
Hye-Rin Park, Eun-Ji Lee, Seong-Cheol Moon, Tae-Wook Chung, Keuk-Jun Kim, Hwa-Seung Yoo, Chong-Kwan Cho, Ki-Tae Ha
Re-education of tumor-associated macrophages (TAMs) toward antitumor effectors may be a promising therapeutic strategy for the successful treatment of cancer. HangAmDan-B (HAD-B), a herbal formula, has been used for stimulating immune function and activation of vital energy to cancer patients in traditional Korean Medicine. Previous studies have reported the anti-angiogenic and anti-metastatic effects of HAD-B; however, evidence on the immunomodulatory action of HAD-B was not demonstrated. In the present study, immunocompetent mice were used to demonstrate the suppression of the in vivo growth of allograft Lewis lung carcinoma (LLC) cells, by HAD-B...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28446981/role-of-cxc-group-chemokines-in-lung-cancer-development-and-progression
#10
Artjoms Spaks
BACKGROUND: Clinical and translational research on lung cancer patients undergoing surgical treatment can provide valuable scientific data and unique opportunity to study tumor microenvironment. CXC chemokines, which are members of a big family of cytokines, are undoubtedly involved in tumor growth regulation and metastasizing pathways. For better understanding of CXC chemokine involvement in the process of carcinogenesis we have studied the cohort of early stage non-small cell lung cancer patients undergoing surgery with curative intent...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28421385/in-vitro-and-in-vivo-anti-tumor-effects-of-selected-platinum-iv-and-dinuclear-platinum-ii-complexes-against-lung-cancer-cells
#11
Milos Arsenijevic, Marija Milovanovic, Snezana Jovanovic, Natalija Arsenijevic, Bojana Simovic Markovic, Marina Gazdic, Vladislav Volarevic
In the present study, cytotoxic effects of cisplatin, the most usually used chemotherapeutic agent, were compared with new designed platinum(IV) ([PtCl4(en)] (en = ethylenediamine) and [PtCl4(dach)]) (dach = (±)-trans-1,2-diaminocyclohexane) and platinum(II) complexes ([{trans-Pt(NH3)2Cl}2(μ-pyrazine)](ClO4)2 (Pt1), [{trans-Pt(NH3)2Cl}2(μ-4,4'-bipyridyl)](ClO4)2DMF(Pt2),[{trans-Pt(NH3)2Cl}2(μ-1,2-bis(4pyridyl)ethane)](ClO4)2 (Pt3)), in vitro and in vivo against human and murine lung cancer cells, to determine anti-tumor potential of newly synthesized platinum-based drugs in the therapy of lung cancer...
April 18, 2017: Journal of Biological Inorganic Chemistry: JBIC
https://www.readbyqxmd.com/read/28416734/the-angiotensin-receptor-blocker-losartan-inhibits-mammary-tumor-development-and-progression-to-invasive-carcinoma
#12
Rhiannon Coulson, Seng H Liew, Angela A Connelly, Nicholas S Yee, Siddhartha Deb, Beena Kumar, Ana C Vargas, Sandra A O'Toole, Adam C Parslow, Ashleigh Poh, Tracy Putoczki, Riley J Morrow, Mariah Alorro, Kyren A Lazarus, Evie F W Yeap, Kelly L Walton, Craig A Harrison, Natalie J Hannan, Amee J George, Colin D Clyne, Matthias Ernst, Andrew M Allen, Ashwini L Chand
Drugs that target the Renin-Angiotensin System (RAS) have recently come into focus for their potential utility as cancer treatments. The use of Angiotensin Receptor Blockers (ARBs) and Angiotensin-Converting Enzyme (ACE) Inhibitors (ACEIs) to manage hypertension in cancer patients is correlated with improved survival outcomes for renal, prostate, breast and small cell lung cancer. Previous studies demonstrate that the Angiotensin Receptor Type I (AT1R) is linked to breast cancer pathogenesis, with unbiased analysis of gene-expression studies identifying significant up-regulation of AGTR1, the gene encoding AT1R in ER+ve/HER2-ve tumors correlating with poor prognosis...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28394354/oncogenic-mct-1-activation-promotes-yy1-egfr-mnsod-signaling-and-tumor-progression
#13
H-Y Tseng, Y-A Chen, J Jen, P-C Shen, L-M Chen, T-D Lin, Y-C Wang, H-L Hsu
Tumor cells often produce high levels of reactive oxygen species (ROS) and display an increased ROS scavenging system. However, the molecular mechanism that balances antioxidative and oxidative stress in cancer cells is unclear. Here, we determined that oncogenic multiple copies in T-cell malignancy 1 (MCT-1) activity promotes the generation of intracellular ROS and mitochondrial superoxide. Overexpression of MCT-1 suppresses p53 accumulation but elevates the manganese-dependent superoxide dismutase (MnSOD) level via the YY1-EGFR signaling cascade, which protects cells against oxidative damage...
April 10, 2017: Oncogenesis
https://www.readbyqxmd.com/read/28376190/effects-of-ctgf-blockade-on-attenuation-and-reversal-of-radiation-induced-pulmonary-fibrosis
#14
Sebastian Bickelhaupt, Christian Erbel, Carmen Timke, Ute Wirkner, Monika Dadrich, Paul Flechsig, Alexandra Tietz, Johanna Pföhler, Wolfgang Gross, Peter Peschke, Line Hoeltgen, Hugo A Katus, Hermann-Josef Gröne, Nils H Nicolay, Rainer Saffrich, Jürgen Debus, Mark D Sternlicht, Todd W Seeley, Kenneth E Lipson, Peter E Huber
Background: Radiotherapy is a mainstay for the treatment of lung cancer that can induce pneumonitis or pulmonary fibrosis. The matricellular protein connective tissue growth factor (CTGF) is a central mediator of tissue remodeling. Methods: A radiation-induced mouse model of pulmonary fibrosis was used to determine if transient administration of a human antibody to CTGF (FG-3019) started at different times before or after 20 Gy thoracic irradiation reduced acute and chronic radiation toxicity...
August 1, 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/28365931/the-effect-of-granulocyte-and-granulocyte-macrophage-colony-stimulating-factors-on-tumor-promotion
#15
Qiqi Liu, Lili Qiao, Pingping Hu, Guodong Deng, Jingxin Zhang, Ning Liang, Jian Xie, Jiandong Zhang
GM-CSF and G-CSF are capable to regulate the maturation of undifferentiated multipotent stem cells into mature granulocytes, macrophages and T cells in the bone marrow. Thereby, clinicians correct neutropenia induced by chemotherapy or radiation routinely with recombinant G- or GM-CSFs in clinical practice. However, relevant studies found that treatment for cancer patients with adjuvant G-/GM-CSF would occasionally enhance the progression of tumors. Besides, constitutive production of G-CSF or GM-CSF by lung cancer cells could stimulate the growth or the invasion of tumor and result in protecting the tumor against unfavorable environment...
January 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28351890/targeting-cd47-and-autophagy-elicited-enhanced-antitumor-effects-in-non-small-cell-lung-cancer
#16
Xuyao Zhang, Jiajun Fan, Shaofei Wang, Yubin Li, Yichen Wang, Song Li, Jingyun Luan, Ziyu Wang, Ping Song, Qicheng Chen, Wenzhi Tian, Dianwen Ju
CD47-specific antibodies and fusion proteins that block CD47-SIRPα signaling are employed as antitumor agents for several cancers. Here, we investigated the synergistic antitumor effect of simultaneously targeting CD47 and autophagy in non-small cell lung cancer (NSCLC). SIRPαD1-Fc, a novel CD47-targeting fusion protein, was generated and was found to increase the phagocytic and cytotoxic activities of macrophages against NSCLC cells. During this process, autophagy was markedly triggered, which was characterized by the three main stages of autophagic flux, including formation and accumulation of autophagosomes, fusion of autophagosomes with lysosomes, and degradation of autophagosomes in lysosomes...
March 28, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/28346430/il-17c-mediates-the-recruitment-of-tumor-associated-neutrophils-and-lung-tumor-growth
#17
C Jungnickel, L H Schmidt, L Bittigkoffer, L Wolf, A Wolf, F Ritzmann, A Kamyschnikow, C Herr, M D Menger, T Spieker, R Wiewrodt, R Bals, C Beisswenger
Chronic obstructive pulmonary disease (COPD) is associated with an increased risk for lung cancer and an aberrant microbiota of the lung. Microbial colonization contributes to chronic neutrophilic inflammation in COPD. Nontypeable Haemophilus influenzae (NTHi) is frequently found in lungs of stable COPD patients and is the major pathogen triggering exacerbations. The epithelial cytokine interleukin-17C (IL-17C) promotes the recruitment of neutrophils into inflamed tissues. The purpose of this study was to investigate the function of IL-17C in the pulmonary tumor microenvironment...
March 27, 2017: Oncogene
https://www.readbyqxmd.com/read/28345958/macrophage-elastase-induces-trail-mediated-tumor-cell-death-through-its-carboxyterminal-domain
#18
Nadine Dandachi, Neil J Kelly, John P Wood, Christine L Burton, Josiah E Radder, Adriana S Leme, Alyssa D Gregory, Steven D Shapiro
RATIONALE: Macrophage elastase (MMP12) is a potent protease that contributes to the lung destruction that accompanies cigarette smoking while it simultaneously inhibits lung tumor angiogenesis and metastasis by catalyzing the formation of anti-angiogenic peptides. Recent studies have revealed novel non-proteolytic functions of MMP12, including antimicrobial activity through a peptide within its C-terminal domain (CTD). OBJECTIVES: Our objective was to determine whether the MMP12 CTD contributes to its anti-tumor activity in lung cancer...
March 27, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28285690/the-cell-cell-interaction-between-tumor-associated-macrophages-and-small-cell-lung-cancer-cells-is-involved-in-tumor-progression-via-stat3-activation
#19
Toyohisa Iriki, Koji Ohnishi, Yukio Fujiwara, Hasita Horlad, Yoichi Saito, Cheng Pan, Koei Ikeda, Takeshi Mori, Makoto Suzuki, Hidenori Ichiyasu, Hirotsugu Kohrogi, Motohiro Takeya, Yoshihiro Komohara
OBJECTIVES: Small cell lung cancer (SCLC) is an aggressive tumor with a poor prognosis. It is well known that various stromal cells, including macrophages, play a role in tumor progression in several types of malignant tumors; however, the significance of tumor-associated macrophages (TAMs) in SCLC has not been fully elucidated. Signal transducer and activator of transcription 3 (STAT3) is a molecule well-known to be related to tumor progression. In the present study, we investigated the relationship of TAMs and SCLC cells to test the hypothesis that TAMs induce tumor progression in SCLC via STAT3 activation...
April 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28258697/tim-3-and-its-role-in-regulating-anti-tumor-immunity
#20
REVIEW
Madhumita Das, Chen Zhu, Vijay K Kuchroo
Immunotherapy is being increasingly recognized as a key therapeutic modality to treat cancer and represents one of the most exciting treatments for the disease. Fighting cancer with immunotherapy has revolutionized treatment for some patients and therapies targeting the immune checkpoint molecules such as CTLA-4 and PD-1 have achieved durable responses in melanoma, renal cancer, Hodgkin's diseases and lung cancer. However, the success rate of these treatments has been low and a large number of cancers, including colorectal cancer remain largely refractory to CTLA-4 and PD-1 blockade...
March 2017: Immunological Reviews
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