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immune mediated metastasis

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https://www.readbyqxmd.com/read/28337749/branched-i%C3%A2-antigens-on-leukemia-cells-enhanced-sensitivity-against-natural-killer-cell-cytotoxicity-through-affecting-the-target-effector-interaction
#1
Yen-Hua Lee, Yi-Jen Liao, Chin-Han Huang, Fu-Ling Chang, Ting-Hsi Fan, Yuh-Ching Twu
BACKGROUND: The aberrant glycosylation on proteins and lipids has been implicated in malignant transformations for promoting the tumorigenesis, metastasis, and evasion from the host immunity. The I-branching β-1,6-N-acetylglucosaminyltransferase, converting the straight i to branched I histo-blood group antigens, reportedly could influence the migration, invasion, and metastasis of solid tumors. STUDY DESIGN AND METHODS: We first chose the highly cytotoxic natural killer (NK)-92MI cells as effector against leukemia for this cell line has been used in several clinical trials...
March 24, 2017: Transfusion
https://www.readbyqxmd.com/read/28333145/the-cryo-thermal-therapy-eradicated-melanoma-in-mice-by-eliciting-cd4-t-cell-mediated-antitumor-memory-immune-response
#2
Kun He, Ping Liu, Lisa X Xu
Tumor metastasis is a major concern in tumor therapy. In our previous studies, a novel tumor therapeutic modality of the cryo-thermal therapy has been presented, highlighting its effect on the suppression of distal metastasis and leading to long-term survival in 4T1 murine mammary carcinoma model. To demonstrate the therapeutic efficacy in other aggressive tumor models and further investigate the mechanism of long-term survival induced, in this study, spontaneous metastatic murine B16F10 melanoma model was used...
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28331843/curative-effect-of-hf10-on-liver-and-peritoneal-metastasis-mediated-by-host-antitumor-immunity
#3
Yoshihiro Hotta, Hideki Kasuya, Itzel Bustos, Yoshinori Naoe, Toru Ichinose, Maki Tanaka, Yasuhiro Kodera
BACKGROUND: HF10 is a highly attenuated type 1 herpes simplex virus (HSV) with proven effective oncolytic effect. Previous investigations have demonstrated that colon cancer mice model treated with HF10 not only had better survival but were also resistant to the reimplantation of the antitumor effect mediated by host antitumor immunity. Importantly, it has also been noted that in mice with antitumors implanted on both sides of the back, an injection of HF10 on only one side strongly restrains not only the injected antitumor but also the non-injected ones...
2017: Oncolytic Virotherapy
https://www.readbyqxmd.com/read/28330927/e3-ubiquitin-ligase-ubr5-drives-the-growth-and-metastasis-of-triple-negative-breast-cancer
#4
Liqiu Liao, Mei Song, Xin Li, Lili Tang, Tuo Zhang, Lixing Zhang, Yihang Pan, Lotfi Chouchane, Xiaojing Ma
Patients with triple negative breast cancers (TNBC) are at high risk for recurrence and metastasis at an early time despite standard treatment, underscoring the need for novel therapeutic modalities. Here we report for the first time a distinctive and profound role of the E3 ubiquitin ligase UBR5 in the growth and metastasis of TNBC. An analysis of primary TNBC specimen by whole exon sequencing revealed strong gene amplifications of UBR5 associated with the disease. UBR5 overexpression in TNBC tissues was confirmed at mRNA and protein levels...
March 22, 2017: Cancer Research
https://www.readbyqxmd.com/read/28323021/the-challenge-of-targeting-cancer-stem-cells-to-halt-metastasis
#5
REVIEW
Alice Agliano, Alfonso Calvo, Carol Box
Despite a continuing debate about the existence of cancer stem cells (CSCs), recent discoveries have provided further support for their existence and their roles in drug resistance, cancer recurrence and metastasis. CSC characteristics, such as self-renewal and tumour initiation, and supporting cellular processes, particularly the epithelial-to-mesenchymal transition, are attracting a great deal of attention from cancer researchers as they offer opportunities for discovering novel therapeutic targets for future drug development...
March 16, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/28317839/polymeric-mechanical-amplifiers-of-immune-cytokine-mediated-apoptosis
#6
Michael J Mitchell, Jamie Webster, Amanda Chung, Pedro P G Guimarães, Omar F Khan, Robert Langer
Physical forces affect tumour growth, progression and metastasis. Here, we develop polymeric mechanical amplifiers that exploit in vitro and in vivo physical forces to increase immune cytokine-mediated tumour cell apoptosis. Mechanical amplifiers, consisting of biodegradable polymeric particles tethered to the tumour cell surface via polyethylene glycol linkers, increase the apoptotic effect of an immune cytokine on tumour cells under fluid shear exposure by as much as 50% compared with treatment under static conditions...
March 20, 2017: Nature Communications
https://www.readbyqxmd.com/read/28314212/gene-delivery-of-tipe2-inhibits-breast-cancer-development-and-metastasis-via-cd8-t-and-nk-cell-mediated-antitumor-responses
#7
Zhenhua Zhang, Li Liu, Shousong Cao, Yizhun Zhu, Qibing Mei
Breast cancer is the second leading cause of cancer-related deaths in the female patients which was mainly caused by metastasis. Development of target gene therapy for breast cancer to suppress tumor progress and metastasis will improve the therapeutic options and be of great benefit to the patients. Tumor necrosis factor-alpha-induced protein 8-like 2 is a novel molecule for maintaining immune homeostasis and is involved in cancer development. In the present study, we overexpressed TIPE2 in breast cancer cells to investigate the role of TIPE2 in the development of breast cancer...
March 14, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28287334/regulation-of-rho-gtpase-activity-at-the-leading-edge-of-migrating-cells-by-p190rhogap
#8
Aurélien Bidaud-Meynard, Fabien Binamé, Valérie Lagrée, Violaine Moreau
Cell migration, a key feature of embryonic development, immunity, angiogenesis, and tumor metastasis, is based on the coordinated regulation of actin dynamics and integrin-mediated adhesion. Rho GTPases play a major role in this phenomenon by regulating the onset and maintenance of actin-based protruding structures at cell leading edges (i.e. lamellipodia and filopodia) and contractile structures (i.e., stress fibers) at their trailing edge. While spatio-temporal analysis demonstrated the tight regulation of Rho GTPases at the migration front during cell locomotion, little is known about how the main regulators of Rho GTPase activity, such as GAPs, GEFs and GDIs, play a role in this process...
March 13, 2017: Small GTPases
https://www.readbyqxmd.com/read/28275576/the-unique-molecular-and-cellular-microenvironment-of-ovarian-cancer
#9
REVIEW
Thomas Worzfeld, Elke Pogge von Strandmann, Magdalena Huber, Till Adhikary, Uwe Wagner, Silke Reinartz, Rolf Müller
The reciprocal interplay of cancer cells and host cells is an indispensable prerequisite for tumor growth and progression. Cells of both the innate and adaptive immune system, in particular tumor-associated macrophages (TAMs) and T cells, as well as cancer-associated fibroblasts enter into a malicious liaison with tumor cells to create a tumor-promoting and immunosuppressive tumor microenvironment (TME). Ovarian cancer, the most lethal of all gynecological malignancies, is characterized by a unique TME that enables specific and efficient metastatic routes, impairs immune surveillance, and mediates therapy resistance...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28275390/dual-role-of-inflammatory-mediators-in-cancer
#10
REVIEW
T G Shrihari
Inflammation is the body's response to noxious stimuli such as infectious, physiological or chemical agents, it releases various inflammatory mediators via immune cells such as neutrophils, macrophages, and lymphocytes. These inflammatory mediators are growth factors, chemokines, and cytokines. Reactive oxygen species (ROS) and nitrogen species (RNS) activate transcriptional factors (NF-KB, STAT-3) and bring about cellular proliferation, genomic instability, angiogenesis, resistance to apoptosis, invasion, and metastasis...
2017: Ecancermedicalscience
https://www.readbyqxmd.com/read/28255366/liposomal-nanoparticles-carrying-anti-il6r-antibody-to-the-tumour-microenvironment-inhibit-metastasis-in-two-molecular-subtypes-of-breast-cancer-mouse-models
#11
Chunlei Guo, Yanan Chen, Wenjuan Gao, Antao Chang, Yujie Ye, Wenzhi Shen, Yunping Luo, Shengyong Yang, Peiqing Sun, Rong Xiang, Na Li
Tumour microenvironment (TME) contributes significantly towards potentiating the stemness and metastasis properties of cancer cells. IL6-Stat3 is one of the important cell signaling pathways in mediating the communication between tumour and immune cells. Here, we have systematically developed a novel anti-CD44 antibody-mediated liposomal nanoparticle delivery system loaded with anti-IL6R antibody, which could specifically target the TME of CD44(+) breast cancer cells in different mouse models for triple negative and luminal breast cancer...
2017: Theranostics
https://www.readbyqxmd.com/read/28248200/the-role-of-the-complement-system-in-cancer
#12
REVIEW
Vahid Afshar-Kharghan
In addition to being a component of innate immunity and an ancient defense mechanism against invading pathogens, complement activation also participates in the adaptive immune response, inflammation, hemostasis, embryogenesis, and organ repair and development. Activation of the complement system via classical, lectin, or alternative pathways generates anaphylatoxins (C3a and C5a) and membrane attack complex (C5b-9) and opsonizes targeted cells. Complement activation end products and their receptors mediate cell-cell interactions that regulate several biological functions in the extravascular tissue...
March 1, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28243127/increased-btla-and-hvem-in-gastric-cancer-are-associated-with-progression-and-poor-prognosis
#13
Xiuwen Lan, Sen Li, Hongyu Gao, Abiyasi Nanding, Lina Quan, Chunyan Yang, Shaohua Ding, Yingwei Xue
PURPOSE: Deregulation of immune checkpoint molecules by tumor cells is related to immune escape. This study was conducted to investigate the relationship between the appearance of B- and T-lymphocyte attenuator (BTLA) and its ligand herpesvirus entry mediator (HVEM) with the prognosis in gastric cancer patients. PATIENTS AND METHODS: A total of 136 patients with curative gastrectomy were included. The expression of BTLA and HVEM was detected by immunohistochemistry, and its correlation with the clinical significance of gastric cancer was further analyzed...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28241846/tumor-associated-macrophages-from-basic-research-to-clinical-application
#14
REVIEW
Li Yang, Yi Zhang
The fact that various immune cells, including macrophages, can be found in tumor tissues has long been known. With the introduction of concept that macrophages differentiate into a classically or alternatively activated phenotype, the role of tumor-associated macrophages (TAMs) is now beginning to be elucidated. TAMs act as "protumoral macrophages," contributing to disease progression. TAMs can promote initiation and metastasis of tumor cells, inhibit antitumor immune responses mediated by T cells, and stimulate tumor angiogenesis and subsequently tumor progression...
February 28, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28236854/transfer-of-malignant-traits-as-opposed-to-migration-of-cells-a-novel-concept-to-explain-metastatic-disease
#15
Goffredo Orazio Arena, Vincenzo Arena, Manuel Arena, Mohamed Abdouh
Metastatic disease is believed to develop following dissemination of cells to target organs. Inability of this theory to effectively explain certain phenomena such as patterns of metastatic spread, late metastasis formation, different gene patterns between primary cancer and metastasis have brought forward the need for alternative models. Recent discoveries have strengthened the validity of theories supporting a humoral transfer of malignant traits as opposed to migration of malignant cells to explain metastatic disease in cancer patients...
March 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28235637/inhibition-of-mir-92d-3p-enhances-inflammation-responses-in-genetically-improved-farmed-tilapia-gift-oreochromis-niloticus-with-streptococcus-iniae-infection-by-modulating-complement-c3
#16
Jun Qiang, Yi-Fan Tao, Jie He, Hong-Xia Li, Pao Xu, Jin-Wen Bao, Yi-Lan Sun
MicroRNAs (miRNAs) are small, non-coding RNAs that regulate target gene expression by binding to the 3'-untranslated regions (3'-UTRs) of their target mRNAs. The miR-92 family is an important miRNA family, which was discovered to be related to regulation of tumor proliferation, apoptosis, invasion, and metastasis. Inhibition of miR-92d-3p was found previously in head kidney of genetically improved farmed tilapia (GIFT, Oreochromis niloticus) exposed to Streptococcus iniae infection. In this study, we found that miR-92d-3p regulated complement C3 mRNA levels by binding to its 3'-UTR by 3'-UTR luciferase reporter assay, and reduced miR-92d-3p expression resulted in increased C3 mRNA levels...
February 22, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28228279/loss-of-pten-is-associated-with-resistance-to-anti-pd-1-checkpoint-blockade-therapy-in-metastatic-uterine-leiomyosarcoma
#17
Suzanne George, Diana Miao, George D Demetri, Dennis Adeegbe, Scott J Rodig, Sachet Shukla, Mikel Lipschitz, Ali Amin-Mansour, Chandrajit P Raut, Scott L Carter, Peter Hammerman, Gordon J Freeman, Catherine J Wu, Patrick A Ott, Kwok-Kin Wong, Eliezer M Van Allen
Response to immune checkpoint blockade in mesenchymal tumors is poorly characterized, but immunogenomic dissection of these cancers could inform immunotherapy mediators. We identified a treatment-naive patient who has metastatic uterine leiomyosarcoma and has experienced complete tumor remission for >2 years on anti-PD-1 (pembrolizumab) monotherapy. We analyzed the primary tumor, the sole treatment-resistant metastasis, and germline tissue to explore mechanisms of immunotherapy sensitivity and resistance...
February 21, 2017: Immunity
https://www.readbyqxmd.com/read/28217128/tumor-associated-lymphatic-vessels-upregulate-pdl1-to-inhibit-t-cell-activation
#18
Lothar C Dieterich, Kristian Ikenberg, Timur Cetintas, Kübra Kapaklikaya, Cornelia Hutmacher, Michael Detmar
Tumor-associated lymphatic vessels (LVs) play multiple roles during tumor progression, including promotion of metastasis and regulation of antitumor immune responses by delivering antigen from the tumor bed to draining lymph nodes (LNs). Under steady-state conditions, LN resident lymphatic endothelial cells (LECs) have been found to maintain peripheral tolerance by directly inhibiting autoreactive T-cells. Similarly, tumor-associated lymphatic endothelium has been suggested to reduce antitumor T-cell responses, but the mechanisms that mediate this effect have not been clarified...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28214872/higher-numbers-of-t-bet-tumor-infiltrating-lymphocytes-associate-with-better-survival-in-human-epithelial-ovarian-cancer
#19
Yun Xu, Lujun Chen, Bin Xu, Yuqi Xiong, Min Yang, Xiaohui Rui, Liangrong Shi, Changping Wu, Jingting Jiang, Binfeng Lu
BACKGROUND/AIMS: T-bet, a member of the T-box family of transcription factors, is a key marker of type I immune response within the tumor microenvironment, and has been previously reported by us to serve as an important prognostic indicator for human gastric cancer patients and a potential biomarker for immunotherapy. In the present study, we aimed to assess the clinical significance and prognostic value of T-bet+ tumor-infiltrating lymphocytes in human epithelial ovarian cancer. METHODS: The immunohistochemistry was used to analyze the infiltration density of T-bet+ lymphoid cells in human epithelial ovarian cancer tissues, and the flow cytometry analysis was used to further analyze the presence of T-bet+ tumor-infiltrating lymphocytes subgroups in cancer tissues...
January 30, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214467/paxillin-a-crossroad-in-pathological-cell-migration
#20
REVIEW
Ana María López-Colomé, Irene Lee-Rivera, Regina Benavides-Hidalgo, Edith López
Paxilllin is a multifunctional and multidomain focal adhesion adapter protein which serves an important scaffolding role at focal adhesions by recruiting structural and signaling molecules involved in cell movement and migration, when phosphorylated on specific Tyr and Ser residues. Upon integrin engagement with extracellular matrix, paxillin is phosphorylated at Tyr31, Tyr118, Ser188, and Ser190, activating numerous signaling cascades which promote cell migration, indicating that the regulation of adhesion dynamics is under the control of a complex display of signaling mechanisms...
February 18, 2017: Journal of Hematology & Oncology
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