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immune mediated metastasis

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https://www.readbyqxmd.com/read/28441391/apigenin-inhibits-tnf%C3%AE-il-1%C3%AE-induced-ccl2-release-through-ikbk-epsilon-signaling-in-mda-mb-231-human-breast-cancer-cells
#1
David Bauer, Natalie Redmon, Elizabeth Mazzio, Karam F Soliman
Mortality associated with breast cancer is attributable to aggressive metastasis, to which TNFα plays a central orchestrating role. TNFα acts on breast tumor TNF receptors evoking the release of chemotactic proteins (e.g. MCP-1/CCL2). These proteins direct inward infiltration/migration of tumor-associated macrophages (TAMs), tumor-associated neutrophils (TANs), myeloid-derived suppressor cells (MDSCs), T-regulatory cells (Tregs), T helper IL-17-producing cells (Th17s), metastasis-associated macrophages (MAMs) and cancer-associated fibroblasts (CAFs)...
2017: PloS One
https://www.readbyqxmd.com/read/28435448/inhibition-of-platelet-function-using-liposomal-nanoparticles-blocks-tumor-metastasis
#2
Yinlong Zhang, Jingyan Wei, Shaoli Liu, Jing Wang, Xuexiang Han, Hao Qin, Jiayan Lang, Keman Cheng, Yiye Li, Yingqiu Qi, Greg J Anderson, Saraswati Sukumar, Suping Li, Guangjun Nie
Extensive evidence has shown that platelets support tumor metastatic progression by inducing epithelial-mesenchymal transition of cancer cells and by shielding circulating tumor cells from immune-mediated elimination. Therefore, blocking platelet function represents a potential new avenue for therapy focused on eliminating metastasis. Here we show that liposomal nanoparticles bearing the tumor-homing pentapeptide CREKA (Cys-Arg-Glu-Lys-Ala) can deliver a platelet inhibitor, ticagrelor, into tumor tissues to specifically inhibit tumor-associated platelets...
2017: Theranostics
https://www.readbyqxmd.com/read/28435394/the-role-of-mast-cells-in-oral-squamous-cell-carcinoma
#3
REVIEW
Swetha Gudiseva, Arvind Babu Rajendra Santosh, Raviteja Chitturi, Vamsikrishna Anumula, Chandrashekar Poosarla, Venkat Ramana Reddy Baddam
The mast cells are initial effective lineage in both humoral and adaptive immunity. They are ubiquitous in skin, mucosa, and in function. They contain biologically essential and dynamic mediators in healthy and harmful conditions of tissue. Mast cell malfunctioning could be attributed to various chronic allergic diseases. Considerately, emerging evidence of mast cell involvement in various cancers shows them to have both positive and negative roles in tumour growth. It mostly indulges in tumour progression and metastasis via angiogenesis, extracellular matrix degradation, and mitogenic activity in the tumour microenvironment...
2017: Contemporary Oncology Współczesna Onkologia
https://www.readbyqxmd.com/read/28435028/antagonistic-effects-of-p53-and-hif1a-on-microrna-34a-regulation-of-ppp1r11-and-stat3-and-hypoxia-induced-epithelial-to-mesenchymal-transition-in-colorectal-cancer-cells
#4
Huihui Li, Matjaz Rokavec, Longchang Jiang, David Horst, Heiko Hermeking
BACKGROUND & AIMS: In colorectal tumors, hypoxia causes resistance to therapy and promotes metastasis. Loss of the tumor suppressor p53 (encoded by TP53) provides cancer cells with a selective advantage under conditions of hypoxia, but little is known about the mediators of this effect. METHODS: Isogenic CRC cell lines with different TP53 genotypes were placed under conditions of hypoxia. We examined the effects on levels and activity of microRNA-34 a (MIR34A) in CRC cells...
April 20, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28428708/indoleamine-2-3-dioxygenase-as-a-potential-prognostic-marker-and-immunotherapeutic-target-for-hepatocellular-carcinoma
#5
REVIEW
Kashif Asghar, Asim Farooq, Bilal Zulfiqar, Muhammad Usman Rashid
Tumor cells induce an immunosuppressive microenvironment which leads towards tumor immune escape. Understanding the intricacy of immunomodulation by tumor cells is essential for immunotherapy. Indoleamine 2,3-dioxygenase (IDO) is an immunosuppressive enzyme which mediates tumor immune escape in various cancers including hepatocellular carcinoma (HCC). IDO up-regulation in HCC may lead to recruitment of regulatory T-cells into tumor microenvironment and therefore inhibit local immune responses and promote metastasis...
April 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28427199/combinatorial-treatment-with-polyi-c-and-anti-il6-enhances-apoptosis-and-suppresses-metastasis-of-lung-cancer-cells
#6
Wai Hoe Lau, Xiphias Ge Zhu, Shamaine Wei Ting Ho, Shu Chun Chang, Jeak Ling Ding
Activation of TLR3 stimulates cancer cell apoptosis and triggers secretion of inflammatory cytokines. PolyI:C, a TLR3 agonist, activates immune cells and regresses metastatic lung cancer in vivo. Although polyI:C reportedly kills lung carcinomas, the mechanism remains elusive. Here, we demonstrated that polyI:C suppressed the proliferation and survival of metastatic (NCI-H358 and NCI-H292) and non-metastatic (A549) lung cancer cells. Notably, A549, NCI-H292 and NCI-H358 which are inducible by polyI:C, expressed low-to-medium level of TLR3 protein, and were susceptible to polyI:C treatment...
March 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28424693/human-melanoma-derived-extracellular-vesicles-regulate-dendritic-cell-maturation
#7
Rachel L G Maus, James W Jakub, Wendy K Nevala, Trace A Christensen, Klara Noble-Orcutt, Zohar Sachs, Tina J Hieken, Svetomir N Markovic
Evolution of melanoma from a primary tumor to widespread metastasis is crucially dependent on lymphatic spread. The mechanisms regulating the initial step in metastatic dissemination via regional lymph nodes remain largely unknown; however, evidence supporting the establishment of a pre-metastatic niche is evolving. We have previously described a dysfunctional immune profile including reduced expression of dendritic cell (DC) maturation markers in the first node draining from the primary tumor, the sentinel lymph node (SLN)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28418194/accelerated-tumor-metastasis-due-to-ifn%C3%AE-receptor-mediated-dissociation-of-perivascular-cells-from-blood-vessels
#8
Chen Ni, Pan Ma, Liwei Qu, Fan Wu, Junfeng Hao, Ruirui Wang, Yu Lu, Wei Yang, Ulrike Erben, Zhihai Qin
Angiostasis mediated by IFNγ is a key mechanism of anti-tumor immunity; however, the effect of IFNγ on host VEGFA-expressing cells during tumor progression is still elusive. Here, we developed transgenic mice with IFNγ receptor (IFNγR) expression under control of the Vegfa promoter (V-γR). In these mice, the IFNγ responsiveness of VEGFA -expressing cells led to a dramatic growth suppression of transplanted lung carcinoma cells. Surprisingly, increased mortality and tumor metastasis were observed in the tumor-bearing V-γR mice, in comparison to the control wild type and IFNγR-deficient mice...
April 18, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28416823/-identification-of-a-new-pro-invasion-factor-in-tumor-microenvironment-progress-in-function-and-mechanism-of-extracellular-atp
#9
W G Fang, X X Tian
Up to 90% of all cancer related morbidity and mortality can be attributed to metastasis. In recent years the study of tumor microenvironment, its cellular and molecular components, and how they can affect neoplastic progression toward metastasis, has become a hot focus in cancer research. Accumulated evidence shows that the formation of metastasis is a multi-step sequential process, in which, the tumor cells continuously interact with the host microenvironment. Host derived factors, i.e. growth factors/inhibitors, angiogenic factors, chemokines, etc...
April 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28415820/targeting-programmed-cell-death-ligand-1-by-crispr-cas9-in-osteosarcoma-cells
#10
Yunfei Liao, Lulu Chen, Yong Feng, Jacson Shen, Yan Gao, Gregory Cote, Edwin Choy, David Harmon, Henry Mankin, Francis Hornicek, Zhenfeng Duan
Programmed cell death ligand 1 (PD-L1) is a transmembrane protein that is expressed on tumor cells that suppresses the T cell-mediated immune response. Therapies targeting the PD-L1 pathway promote anti-tumor immunity and have shown promising results in some types of cancers. However, the functional and therapeutic roles of PD-L1 in osteosarcoma remain largely unknown. In this study, we found that PD-L1 protein was expressed in osteosarcoma cell lines and tissue microarray of patient tumors. Tissue microarray immunohistochemistry analysis showed that the overall and five-year survival rates of patients with high levels of PD-L1 expression were significantly shorter than patients with low levels...
March 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28408492/cd81-as-a-tumor-target
#11
REVIEW
Felipe Vences-Catalán, Caroline Duault, Chiung-Chi Kuo, Ranjani Rajapaksa, Ronald Levy, Shoshana Levy
CD81 participates in a variety of important cellular processes such as membrane organization, protein trafficking, cellular fusion and cell-cell interactions. In the immune system, CD81 regulates immune synapse, receptor clustering and signaling; it also mediates adaptive and innate immune suppression. CD81 is a gateway in hepatocytes for pathogens such as hepatitis C virus and Plasmodium; it also confers susceptibility to Listeria infection. These diverse biological roles are due to the tendency of CD81 to associate with other tetraspanins and with cell-specific partner proteins, which provide the cells with a signaling platform...
April 15, 2017: Biochemical Society Transactions
https://www.readbyqxmd.com/read/28405519/the-interleukin-il-1r1-pathway-is-a-critical-negative-regulator-of-pymt-mediated-mammary-tumorigenesis-and-pulmonary-metastasis
#12
Maryse Dagenais, Jeremy Dupaul-Chicoine, Todd Douglas, Claudia Champagne, Alexandre Morizot, Maya Saleh
Breast cancer is the most common cancer in women and the second leading cause of female cancer-related deaths worldwide. Inflammation is an established hallmark of tumorigenesis and an important determinant of tumor outcome and response to therapy. With advances in cancer immunotherapy, there is an urgent need to dissect the contribution of specific immune effectors in cancer development. Here, we genetically investigated the role of the Interleukin-1 (IL-1) receptor 1 (IL-1R1) pathway in breast cancer tumorigenesis and metastasis using the MMTV-PyMT mouse model...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28402944/exosome-emerging-biomarker-in-breast-cancer
#13
REVIEW
Yunlu Jia, Yongxia Chen, Qinchuan Wang, Ushani Jayasinghe, Xiao Luo, Qun Wei, Ji Wang, Hanchu Xiong, Cong Chen, Bin Xu, Wenxian Hu, Linbo Wang, Wenhe Zhao, Jichun Zhou
Exosomes are nano-sized membrane vesicles released by a variety of cell types, and are thought to play important roles in intercellular communications. In breast cancer, through horizontal transfer of various bioactive molecules, such as proteins and mRNAs, exosomes are emerging as local and systemic cell-to-cell mediators of oncogenic information and play an important role on cancer progression. This review outlines the current knowledge and concepts concerning the exosomes involvement in breast cancer pathogenesis (including tumor initiation, invasion and metastasis, angiogenesis, immune system modulation and tumor microenvironment) and cancer therapy resistance...
March 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28401532/gram-positive-pneumonia-augments-non-small-cell-lung-cancer-metastasis-via-host-toll-like-receptor-2-activation
#14
Stephen D Gowing, Simon C Chow, Jonathan J Cools-Lartigue, Crystal B Chen, Sara Najmeh, Henry Y Jiang, France Bourdeau, Annie Beauchamp, Ugo Mancini, Isabelle Angers, Betty Giannias, Jonathan D Spicer, Simon Rousseau, Salman T Qureshi, Lorenzo E Ferri
Surgical resection of early stage non-small cell lung cancer (NSCLC) is necessary for cure. However, rates of post-operative bacterial pneumonias remain high and may confer an increased risk for metastasis. Toll-like receptors (TLRs) mediate the inflammatory cascade by recognizing microbial products at the surface of numerous cell types in the lung; however, little is known about how host TLRs influence NSCLC metastasis. TLR2 recognizes gram-positive bacterial cell wall components activating innate immunity...
April 12, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28391403/cytokine-induced-senescence-for-cancer-surveillance
#15
REVIEW
Thomas Wieder, Ellen Brenner, Heidi Braumüller, Oliver Bischof, Martin Röcken
The immune response is a first-line systemic defense to curb tumorigenesis and metastasis. Much effort has been invested to design antitumor interventions that would boost the immune system in its fight to defeat or contain cancerous growth. Tumor vaccination protocols, transfer of tumor-associated-antigen-specific T cells, T cell activity-regulating antibodies, and recombinant cytokines are counted among a toolbox filled with immunotherapeutic options. Although the mechanistic underpinnings of tumor immune control remain to be deciphered, these are studied with the goal of cancer cell destruction...
April 8, 2017: Cancer Metastasis Reviews
https://www.readbyqxmd.com/read/28383557/silencing-nkg2d-ligand-targeting-mirnas-enhances-natural-killer-cell-mediated-cytotoxicity-in-breast-cancer
#16
Jiaying Shen, Jie Pan, Chengyong Du, Wengong Si, Minya Yao, Liang Xu, Huilin Zheng, Mingjie Xu, Danni Chen, Shu Wang, Peifen Fu, Weimin Fan
NKG2D is one of the major activating receptors of natural killer (NK) cells and binds to several ligands (NKG2DLs). NKG2DLs are expressed on malignant cells and sensitize them to early elimination by cytotoxic lymphocytes. We investigated the clinical importance of NKG2DLs and the mechanism of NKG2DL regulation in breast cancer (BC). Among the NKG2DLs MICA/B and ULBP1/2/3, the expression levels of MICA/B in BC tissues were inversely associated with the Tumor Node Metastasis stage. We first found that the high expression of MICB, but not MICA, was an independent prognostic factor for overall survival in patients with BC...
April 6, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28381169/the-role-of-sphingosine-1-phosphate-in-the-tumor-microenvironment-and-its-clinical-implications
#17
REVIEW
Masato Nakajima, Masayuki Nagahashi, Omar M Rashid, Kazuaki Takabe, Toshifumi Wakai
Elucidating the interaction between cancer and non-cancer cells, such as blood vessels, immune cells, and other stromal cells, in the tumor microenvironment is imperative in understanding the mechanisms underlying cancer progression and metastasis, which is expected to lead to the development of new therapeutics. Sphingosine-1-phosphate is a bioactive lipid mediator that promotes cell survival, proliferation, migration, angiogenesis/lymphangiogenesis, and immune responsiveness, which are all factors involved in cancer progression...
April 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28378634/crosstalks-between-raf-kinase-inhibitor-protein-and-cancer-stem-cell-transcription-factors-oct4-klf4-sox2-nanog
#18
REVIEW
SoHyun Lee, Stephanie Wottrich, Benjamin Bonavida
Raf-kinase inhibitor protein has been reported to inhibit both the Raf/mitogen extracellular signal-regulated kinase/extracellular signal-regulated kinase and nuclear factor kappa-light-chain of activated B cells pathways. It has also been reported in cancers that Raf-kinase inhibitor protein behaves as a metastatic suppressor as well as a chemo-immunosensitizing factor to drug/immune-mediated apoptosis. The majority of cancers exhibit low or no levels of Raf-kinase inhibitor protein. Hence, the activities of Raf-kinase inhibitor protein contrast, in part, to those mediated by several cancer stem cell transcription factors for their roles in resistance and metastasis...
April 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28377481/characterization-of-an-immunogenic-mutation-in-a-patient-with-metastatic-triple-negative-breast-cancer
#19
Yasmine Assadipour, Nikolaos Zacharakis, Jessica S Crystal, Todd D Prickett, Jared J Gartner, Robert P T Somerville, Hui Xu, Mary A Black, Li Jia, Harshini Chinnasamy, Isaac Kriley, Lily Lu, John R Wunderlich, Zhili Zheng, Yong-Chen Lu, Paul F Robbins, Steven A Rosenberg, Stephanie L Goff, Steven A Feldman
The administration of autologous tumor infiltrating lymphocytes (TIL) can mediate durable tumor regressions in patients with melanoma likely based on the recognition of immunogenic somatic mutations expressed by the cancer. There is limited data regarding the immunogenicity of mutations in breast cancer. We sought to identify immunogenic non-synonymous mutations in a patient with triple-negative breast cancer (TNBC) in order to identify and isolate mutation-reactive TIL for possible use in adoptive cell transfer...
April 4, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28368416/sox2-is-dispensable-for-primary-melanoma-and-metastasis-formation
#20
S M Schaefer, C Segalada, P F Cheng, M Bonalli, V Parfejevs, M P Levesque, R Dummer, S K Nicolis, L Sommer
Tumor initiation and metastasis formation in many cancers have been associated with emergence of a gene expression program normally active in embryonic or organ-specific stem cells. In particular, the stem cell transcription factor Sox2 is not only expressed in a variety of tumors, but is also required for their formation. Melanoma, the most aggressive skin tumor, derives from melanocytes that during development originate from neural crest stem cells. While neural crest stem cells do not express Sox2, expression of this transcription factor has been reported in melanoma...
April 3, 2017: Oncogene
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