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immune mediated metastasis

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https://www.readbyqxmd.com/read/28916526/monoclonal-antibodies-directed-against-cadherin-rgd-exhibit-therapeutic-activity-against-melanoma-and-colorectal-cancer-metastasis
#1
Ruben A Bartolomé, Carmen Aizpurua, Marta Jaén, Sofia Torres, Eva Calviño, Juan I Imbaud, J Ignacio Casal
PURPOSE: New targets are required for the control of advanced metastatic disease. We investigated the use of cadherin RGD motifs, which activate the α2β1integrin pathway, as targets for the development of therapeutic monoclonal antibodies (mAbs). EXPERIMENTAL DESIGN: CDH17 fragments and peptides were prepared and used for immunization and antibody development. Antibodies were tested for inhibition of β1 integrin and cell adhesion, proliferation and invasion assays using cell lines from different cancer types: colorectal, pancreatic, melanoma and breast cancer...
September 15, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28916148/chemokine-receptor-directed-imaging-and-therapy
#2
REVIEW
Andreas K Buck, Antje Stolzenburg, Heribert Hänscheid, Andreas Schirbel, Katharina Lückerath, Margret Schottelius, Hans-Jürgen Wester, Constantin Lapa
The C - X - C chemokine receptor 4 (CXCR4) and its natural ligand CXCL12 are key factors in the process of cell migration, homing of hematopoietic stem cells to the bone marrow, and represent important mediators of angiogenesis and cell proliferation. The CXCR4/CXCL12 interplay can be disrupted by CXCR4 antagonists such as Plerixafor which are already in daily clinical use, i.e. for mobilization and subsequent harvesting of hematopoietic progenitor cells and stem cell transplantation. In a pathological condition, involvement in the process of metastasis and homing of cancer cells to a protective niche has been described, making CXCR4 an attractive target for imaging and treatment of malignant diseases...
September 12, 2017: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/28912626/clinical-impact-of-sphingosine-1-phosphate-in-breast-cancer
#3
REVIEW
Junko Tsuchida, Masayuki Nagahashi, Kazuaki Takabe, Toshifumi Wakai
Breast cancer metastasizes to lymph nodes or other organs, which determine the prognosis of patients. It is difficult to cure the breast cancer patients with distant metastasis due to resistance to drug therapies. Elucidating the underlying mechanisms of breast cancer metastasis and drug resistance is expected to provide new therapeutic targets. Sphingosine-1-phosphate (S1P) is a pleiotropic, bioactive lipid mediator that regulates many cellular functions, including proliferation, migration, survival, angiogenesis/lymphangiogenesis, and immune responses...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28903392/a-role-for-brg1-in-the-regulation-of-genes-required-for-development-of-the-lymphatic-system
#4
Ajeet Pratap Singh, Julie Foley, Arpit Tandon, Dhiral Phadke, H Karimi Kinyamu, Trevor K Archer
Lymphatic vasculature is an important part of the cardiovascular system with multiple functions, including regulation of the return of interstitial fluid (lymph) to the bloodstream, immune responses, and fat absorption. Consequently, lymphatic vasculature defects are involved in many pathological processes, including tumor metastasis and lymphedema. BRG1 is an important player in the developmental window when the lymphatic system is initiated. In the current study, we used tamoxifen inducible Rosa26CreERT2-BRG1(floxed/floxed) mice that allowed temporal analysis of the impact of BRG1 inactivation in the embryo...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28900509/biodegradable-hollow-mesoporous-silica-nanoparticles-for-regulating-tumor-microenvironment-and-enhancing-antitumor-efficiency
#5
Miao Kong, Jiamin Tang, Qi Qiao, Tingting Wu, Yan Qi, Songwei Tan, Xueqin Gao, Zhiping Zhang
There is accumulating evidence that regulating tumor microenvironment plays a vital role in improving antitumor efficiency. Herein, to remodel tumor immune microenvironment and elicit synergistic antitumor effects, lipid-coated biodegradable hollow mesoporous silica nanoparticle (dHMLB) was constructed with co-encapsulation of all-trans retinoic acid (ATRA), doxorubicin (DOX) and interleukin-2 (IL-2) for chemo-immunotherapy. The nanoparticle-mediated combinational therapy provided a benign regulation on tumor microenvironment through activation of tumor infiltrating T lymphocytes and natural killer cells, promotion of cytokines secretion of IFN-γ and IL-12, and down-regulation of immunosuppressive myeloid-derived suppressor cells, cytokine IL-10 and TGF-β...
2017: Theranostics
https://www.readbyqxmd.com/read/28900199/sorafenib-suppresses-extrahepatic-metastasis-de-novo-in-hepatocellular-carcinoma-through-inhibition-of-mesenchymal-cancer-stem-cells-characterized-by-the-expression-of-cd90
#6
Mariko Yoshida, Taro Yamashita, Hikari Okada, Naoki Oishi, Kouki Nio, Takehiro Hayashi, Yoshimoto Nomura, Tomoyuki Hayashi, Yoshiro Asahina, Mika Ohwada, Hajime Sunagozaka, Hajime Takatori, Federico Colombo, Laura Porretti, Masao Honda, Shuichi Kaneko
Cancer stem cells (CSCs) are a pivotal target for eradicating hepatocellular carcinoma (HCC). We previously reported that distinctive CSCs regulating tumorigenicity (EpCAM(+) CSCs) and metastasis (CD90(+) CSCs) have different epithelial/mesenchymal gene expression signatures. Here, we examined the influence of sorafenib, a multiple-receptor tyrosine kinase inhibitor used as a first-line treatment for advanced HCC, on EpCAM(+) and CD90(+) CSCs. CD90(+) cells showed higher c-Kit gene/protein expression than EpCAM(+) cells...
September 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28892050/carcinoembryonic-antigen-related-cell-adhesion-molecule-6-ceacam6-promotes-egf-receptor-signaling-of-oral-squamous-cell-carcinoma-metastasis-via-the-complex-n-glycosylation
#7
W-F Chiang, T-M Cheng, C-C Chang, S-H Pan, C A Changou, T-H Chang, K-H Lee, S-Y Wu, Y-F Chen, K-H Chuang, D-B Shieh, Y-L Chen, C-C Tu, W-L Tsui, M-H Wu
Aberrant protein glycosylation could be a distinct surface-marker of cancer cells that influences cancer progression and metastasis because glycosylation can regulate membrane protein folding which alters receptor activation and changes epitope exposure for antibody (Ab) recognition. Carcinoembryonic antigen-related cell adhesion molecule 6 (CEACAM6), a glycophosphoinositol-anchored protein, is a heavily glycosylated tumor antigen. However, the clinical significance and biological effect of CEACAM6 glycosylation has not been addressed in cancers...
September 11, 2017: Oncogene
https://www.readbyqxmd.com/read/28887153/the-eya-phosphatase-its-unique-role-in-cancer
#8
REVIEW
Hengbo Zhou, Lingdi Zhang, Rebecca L Vartuli, Heide L Ford, Rui Zhao
The Eya proteins were originally identified as essential transcriptional co-activators of the Six family of homeoproteins. Subsequently, the highly conserved C-terminal domains of the Eya proteins were discovered to act as a Mg(2+)-dependent Tyr phosphatases, making Eyas the first transcriptional activators to harbor intrinsic phosphatase activity. Only two direct targets of the Eya Tyr phosphatase have been identified: H2AX, whose dephosphorylation directs cells to the DNA repair instead of the apoptotic pathway upon DNA damage, and ERβ, whose dephosphorylation inhibits its anti-tumor transcriptional activity...
September 5, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28872489/a-case-of-pure-red-cell-aplasia-during-nivolumab-therapy-for-cardiac-metastatic-melanoma
#9
Akihiko Yuki, Tatsuya Takenouchi, Sumiko Takatsuka, Takuro Ishiguro
Nivolumab is an antibody against programmed cell death 1 and functions as an immune checkpoint inhibitor for various malignancies, including unresectable melanomas. Nivolumab causes several immune-related adverse events, which typically include skin rash, pneumonitis, thyroid dysfunction, hepatitis, and colitis; in rare cases, anemia may be present. There are several reports of autoimmune hemolytic anemia that has developed in response to nivolumab; however, there are few reports of pure red cell aplasia (PRCA)...
September 1, 2017: Melanoma Research
https://www.readbyqxmd.com/read/28842360/notch-out-for-breast-cancer-therapies
#10
REVIEW
Márcia Lamy, Andreia Ferreira, Joana Sales Dias, Sofia Braga, Gabriela Silva, Ana Barbas
Notch signalling is an evolutionarily highly conserved pathway that plays a crucial role during embryonic development and in tissue homeostasis maintenance during adult life. Abnormal Notch signalling has been implicated in several human genetic disorders and in multiple facets of cancer biology, including stem cell renewal, cancer cell proliferation, tumor angiogenesis and metastasis. Hence, Notch signalling has gained increasing attention as a potential therapeutic target for many disorders. γ-secretase inhibitors (GSIs) were the first therapeutics used to inhibit pathological Notch signalling in various diseases, notably in oncology...
August 22, 2017: New Biotechnology
https://www.readbyqxmd.com/read/28833090/development-of-the-lyve-1-gene-with-an-acidic-amino-acid-rich-aaar-domain-in-evolution-is-associated-with-acquisition-of-lymph-nodes-and-efficient-adaptive-immunity
#11
Shuan Shian Huang, Ya-Wen Li, Jen-Leih Wu, Frank E Johnson, Jung San Huang
CRSBP-1 (mammalian LYVE-1) is a membrane glycoprotein highly expressed in lymphatic endothelial cells (LECs). It has multiple ligands, including hyaluronic acid (HA) and growth factors/cytokines (e.g., PDGF-BB and VEGF-A) containing CRS motifs (clusters of basic amino-acid residues). The ligand binding activities are mediated by Link module and acidic-amino-acid-rich (AAAR) domains, respectively. These CRSBP-1/LYVE-1 ligands have been shown to induce opening of lymphatic intercellular junctions in LEC monolayers and in lymphatic vessels in wild-type mice...
August 19, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28831824/vegf-as-a-potential-target-in-lung-cancer
#12
Daniela Frezzetti, Marianna Gallo, Monica R Maiello, Amelia D'Alessio, Claudia Esposito, Nicoletta Chicchinelli, Nicola Normanno, Antonella De Luca
Introduction The vascular endothelial growth factor A (VEGF) is the main mediator of angiogenesis. In addition, VEGF contributes to cancer growth and metastasis directly targeting tumor cells. VEGF overexpression and/or high VEGF serum levels have been reported in lung cancer. Areas covered We searched Pubmed for relevant preclinical studies with the terms 'lung cancer' 'VEGF' and 'in vivo'. We also searched the Clinicaltrials.gov database, the FDA and the EMA websites for the most recent updates on clinical development of anti-VEGF agents...
August 30, 2017: Expert Opinion on Therapeutic Targets
https://www.readbyqxmd.com/read/28830732/cgas-sting-and-cancer-dichotomous-roles-in-tumor-immunity-and-development
#13
REVIEW
Kevin W Ng, Erin A Marshall, John C Bell, Wan L Lam
cGMP-AMP synthase (cGAS)-stimulator of interferon genes (STING) sensing has emerged as a key regulator of innate immune responses to both exogenous and endogenous DNA. Recent studies reveal critical roles for this pathway in natural antitumor immunity across cancer types as well as in immune checkpoint blockade therapy. However, it is also clear that some tumors evade cGAS-STING-mediated immune responses, and immunomodulatory therapeutics are currently being explored to target this pathway. Finally, we also discuss recent observations that cGAS-STING-mediated inflammation may promote tumor initiation, growth, and metastasis in certain malignancies and how this may complicate the utility of this pathway in therapeutic development...
August 19, 2017: Trends in Immunology
https://www.readbyqxmd.com/read/28817603/expression-of-the-mhc-class-ii-in-triple-negative-breast-cancer-is-associated-with-tumor-infiltrating-lymphocytes-and-interferon-signaling
#14
In Ah Park, Seong-Hye Hwang, In Hye Song, Sun-Hee Heo, Young-Ae Kim, Won Seon Bang, Hye Seon Park, Miseon Lee, Gyungyub Gong, Hee Jin Lee
Tumor-infiltrating lymphocytes (TILs) have been known for their strong prognostic and predictive significance in triple-negative breast cancer (TNBC). Several mechanisms for TIL influx in TNBC have been elucidated. Major histocompatibility complex class II (MHC-II) is an essential component of the adaptive immune system and is generally restricted to the surface of antigen-presenting cells. However, it has been reported that interferon-gamma signaling may induce MHC-II in almost all cell types, including those derived from cancer...
2017: PloS One
https://www.readbyqxmd.com/read/28815730/loss-of-bmi-1-dampens-migration-and-emt-of-colorectal-cancer-in-inflammatory-microenvironment-through-tlr4-md-2-myd88-mediated-nf-%C3%AE%C2%BAb-signaling
#15
Kai Ye, Qi-Wei Chen, Ya-Feng Sun, Jian-An Lin, Jian-Hua Xu
Increasing evidence from various clinical and experimental studies has demonstrated that the inflammatory microenvironment created by immune cells facilitates tumor migration. Epithelial-mesenchymal transition (EMT) is involved in the progression of cancer invasion and metastasis in an inflammatory microenvironment. B-lymphoma Moloney murine leukemia virus insertion region 1 (BMI-1) acts as an oncogene in various tumors. Ectopic expression of Bmi-1 have an effect on EMT and invasiveness. The purpose of this study was to investigate the efficacy of BMI-1 on inflammation-induced tumor migration and EMT and the underlying mechanism...
August 16, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28813180/inflammatory-signaling-cascades-and-autophagy-in-cancer
#16
Teresa Monkkonen, Jayanta Debnath
Tumor-associated inflammation is predictive of poor prognosis and drives a variety of tumorigenic phenotypes, including tumor proliferation and survival, angiogenesis, invasiveness, and metastasis. Here, we review mammalian data addressing the interaction of macroautophagy/autophagy with key signaling cascades associated with tumor inflammation. Although our understanding of this area remains incomplete, certain inflammatory pathways have emerged as important mediators of the crosstalk between autophagy and inflammation in tumors...
August 16, 2017: Autophagy
https://www.readbyqxmd.com/read/28811825/ethanol-extract-of-mylabris-phalerata-inhibits-m2-polarization-induced-by-recombinant-il-4-and-il-13-in-murine-macrophages
#17
Hwan-Suck Chung, Bong-Seon Lee, Jin Yeul Ma
Mylabris phalerata (MP) is an insect used in oriental herbal treatments for tumor, tinea infections, and stroke. Recent studies have shown that tumor-associated macrophages (TAM) have detrimental roles such as tumor progression, angiogenesis, and metastasis. Although TAM has phenotypes and characteristics in common with M2-polarized macrophages, M1 macrophages have tumor suppression and immune stimulation effects. Medicines polarizing macrophages to M1 have been suggested to have anticancer effects via the modulation of the tumor microenvironment...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28811289/primary-tumors-limit-metastasis-formation-through-induction-of-il15-mediated-crosstalk-between-patrolling-monocytes-and-nk-cells
#18
Hiroshi Kubo, Sofia Mensurado, Natacha Goncalves-Sousa, Karine Serre, Bruno Silva-Santos
Metastases are responsible for the vast majority of cancer-related deaths. Although tumor cells can become invasive early during cancer progression, metastases formation typically occurs as a late event. How the immune response to primary tumors may dictate this outcome remains poorly understood, which hampers our capacity to manipulate it therapeutically. Here we used a two-step experimental model, based on the highly aggressive B16F10 melanoma, that temporally segregates the establishment of primary tumors (subcutaneously) and the formation of lung metastases (from intravenous injection)...
August 15, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/28805741/alcohol-and-cancer-mechanisms-and-therapies
#19
REVIEW
Anuradha Ratna, Pranoti Mandrekar
Several scientific and clinical studies have shown an association between chronic alcohol consumption and the occurrence of cancer in humans. The mechanism for alcohol-induced carcinogenesis has not been fully understood, although plausible events include genotoxic effects of acetaldehyde, cytochrome P450 2E1 (CYP2E1)-mediated generation of reactive oxygen species, aberrant metabolism of folate and retinoids, increased estrogen, and genetic polymorphisms. Here, we summarize the impact of alcohol drinking on the risk of cancer development and potential underlying molecular mechanisms...
August 14, 2017: Biomolecules
https://www.readbyqxmd.com/read/28798777/mesenchymal-stem-cells-promote-metastasis-of-lung-cancer-cells-by-downregulating-systemic-antitumor-immune-response
#20
Marina Gazdic, Bojana Simovic Markovic, Nemanja Jovicic, Maja Misirkic-Marjanovic, Valentin Djonov, Vladimir Jakovljevic, Nebojsa Arsenijevic, Miodrag L Lukic, Vladislav Volarevic
Since majority of systemically administered mesenchymal stem cells (MSCs) become entrapped within the lungs, we used metastatic model of lung cancer, induced by intravenous injection of Lewis lung cancer 1 (LLC1) cells, to investigate the molecular mechanisms involved in MSC-mediated modulation of metastasis. MSCs significantly augmented lung cancer metastasis, attenuate concentrations of proinflammatory cytokines (TNF-α, IL-17), and increase levels of immunosuppressive IL-10, nitric oxide, and kynurenine in sera of LLC1-treated mice...
2017: Stem Cells International
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