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https://www.readbyqxmd.com/read/28090647/the-multifaceted-role-of-extracellular-vesicles-in-metastasis-priming-the-soil-for-seeding
#1
REVIEW
Brunna Dos Anjos Pultz, Felipe Andrés Cordero da Luz, Sara Socorro Faria, Leandro Peixoto Ferreira de Souza, Paula Cristina Brígido Tavares, Vivian Alonso Goulart, Wagner Fontes, Luiz Ricardo Goulart, Marcelo José Barbosa Silva
Extracellular vesicles (EVs), including exosomes, play a key role in inter and intracellular communication, promoting the proliferation and invasion of recipient cells to support tumor growth and metastasis. Metastasis comprises multiple steps that first include the detachment of tumor cells through epithelial to mesenchymal transition (EMT), allowing the physical dissemination to distant organs. Thereafter, cancer-derived exosomes are still critical components for preparing the tumor microenvironment by (i) enabling tumor cells to escape from the immunological surveillance and (ii) arranging the pre-metastatic site for the engraftment of detached cancer cells...
January 16, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28087332/exo-mfa-a-13c-metabolic-flux-analysis-to-dissect-tumor-microenvironment-secreted-exosome-contributions-towards-cancer-cell-metabolism
#2
Abhinav Achreja, Hongyun Zhao, Lifeng Yang, Tae Hyun Yun, Juan Marini, Deepak Nagrath
Dissecting the pleiotropic roles of tumor micro-environment (TME) on cancer progression has been brought to the foreground of research on cancer pathology. Extracellular vesicles such as exosomes, transport proteins, lipids, and nucleic acids, to mediate intercellular communication between TME components and have emerged as candidates for anti-cancer therapy. We previously reported that cancer-associated fibroblast (CAF) derived exosomes (CDEs) contain metabolites in their cargo that are utilized by cancer cells for central carbon metabolism and promote cancer growth...
January 10, 2017: Metabolic Engineering
https://www.readbyqxmd.com/read/28079007/novel-therapies-targeting-cardioprotection-and-regeneration
#3
Valeria Garrido, Evelyn Mendoza-Torres, Jaime A Riquelme, Ariel Díaz, Marcela Pizarro, Mario Bustamante, Myra N Chavez, María Paz Ocaranza, Rosemarie Mellado, Ramon Corbalan, Miguel L Allende, Sergio Lavandero
Cardiovascular disease is the leading cause of death worldwide. The heart is susceptible to pathologies that impact the myocardium directly, such myocardial infarction and consequent heart failure, as well as conditions with indirect cardiac effects, such cancer treatment-related cardiotoxicity. As the contractile cells of the heart, cardiomyocytes are essential for normal cardiac function. Various stress stimuli may result in transient damage or cell death in cardiomyocytes through apoptosis, necrosis or maladaptive autophagy...
January 12, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28077297/exosomes-key-mediators-of-metastasis-and-pre-metastatic-niche-formation
#4
REVIEW
Richard J Lobb, Luize G Lima, Andreas Möller
While tumour cells are classically known to communicate via direct cell-to-cell contact and the secretion of soluble protein-based factors such as cytokines and growth factors, alternative novel mechanisms that promote tumour progression have recently emerged. Now, new critical components of the secretome thought to be involved in tumour progression are exosomes, small vesicles of endocytic origin that carry a variety of bioactive molecules, including proteins, lipids, RNA, as well as DNA molecules. Cancer cell-derived exosomes have been shown to participate in crucial steps of metastatic spread of a primary tumour, ranging from oncogenic reprogramming of malignant cells to formation of pre-metastatic niches...
January 8, 2017: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/28077296/extracellular-vesicle-communication-pathways-as-regulatory-targets-of-oncogenic-transformation
#5
REVIEW
Dongsic Choi, Tae Hoon Lee, Cristiana Spinelli, Shilpa Chennakrishnaiah, Esterina D'Asti, Janusz Rak
Pathogenesis of human cancers bridges intracellular oncogenic driver events and their impact on intercellular communication. Among multiple mediators of this 'pathological connectivity' the role of extracellular vesicles (EVs) and their subsets (exosomes, ectosomes, oncosomes) is of particular interest for several reasons. The release of EVs from cancer cells represents a unique mechanism of regulated expulsion of bioactive molecules, a process that also mediates cell-to-cell transfer of lipids, proteins, and nucleic acids...
January 8, 2017: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/28076321/secretion-modification-region-derived-peptide-blocks-exosome-release-and-mediates-cell-cycle-arrest-in-breast-cancer-cells
#6
Ming-Bo Huang, Ruben R Gonzalez, James Lillard, Vincent C Bond
PURPOSE: Discovery and development of a novel anticancer PEG-SMR-Clu peptide to prevent breast cancer metastasis. How breast cancer cells and primary mammary epithelial cells interact and communicate with each other to promote tumorigenesis and how to prevent tumor metastasis has long been a concern of researchers. Cancer cells secrete exosomes containing proteins and RNA. These factors can influence tumor development by directly targeting cancer cells and tumor stroma. In this study, we determined the effects of a peptide as an inhibitor of exosome secretion on breast tumors...
January 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28069806/dna-containing-exosomes-derived-from-cancer-cells-treated-with-topotecan-activate-a-sting-dependent-pathway-and-reinforce-antitumor-immunity
#7
Yuichi Kitai, Takumi Kawasaki, Takuya Sueyoshi, Kouji Kobiyama, Ken J Ishii, Jian Zou, Shizuo Akira, Tadashi Matsuda, Taro Kawai
Danger-associated molecular patterns derived from damaged or dying cells elicit inflammation and potentiate antitumor immune responses. In this article, we show that treatment of breast cancer cells with the antitumor agent topotecan (TPT), an inhibitor of topoisomerase I, induces danger-associated molecular pattern secretion that triggers dendritic cell (DC) activation and cytokine production. TPT administration inhibits tumor growth in tumor-bearing mice, which is accompanied by infiltration of activated DCs and CD8(+) T cells...
January 9, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28068409/reprogramming-malignant-cancer-cells-toward-a-benign-phenotype-following-exposure-to-human-embryonic-stem-cell-microenvironment
#8
Shufeng Zhou, Mohamed Abdouh, Vincenzo Arena, Manuel Arena, Goffredo Orazio Arena
The embryonic microenvironment is well known to be non-permissive for tumor development because early developmental signals naturally suppress the expression of proto-oncogenes. In an analogous manner, mimicking an early embryonic environment during embryonic stem cell culture has been shown to suppress oncogenic phenotypes of cancer cells. Exosomes derived from human embryonic stem cells harbor substances that mirror the content of the cells of origin and have been reported to reprogram hematopoietic stem/progenitor cells via horizontal transfer of mRNA and proteins...
2017: PloS One
https://www.readbyqxmd.com/read/28064454/hgf-met-in-cancer-progression-and-biomarker-discovery
#9
REVIEW
Kunio Matsumoto, Masataka Umitsu, Dinuka M De Silva, Arpita Roy, Donald P Bottaro
Signaling driven by hepatocyte growth factor (HGF) and MET receptor facilitates conspicuous biological responses such as epithelial cell migration, 3-D morphogenesis, and survival. The dynamic migration and promotion of cell survival induced by MET activation are bases respectively for invasion-metastasis and resistance against targeted drugs in cancers. Recent studies indicated that MET in tumor-derived exosomes facilitates metastatic niche formation and metastasis in malignant melanoma. In lung cancer, gene amplification-induced MET activation and ligand-dependent MET activation in autocrine/paracrine manner are causes for resistance to EGF receptor tyrosine kinase inhibitors and ALK inhibitors...
January 8, 2017: Cancer Science
https://www.readbyqxmd.com/read/28062807/junctional-adhesion-molecule-a-expression-in-the-murine-epididymal-tract-and-accessory-organs-and-acquisition-by-maturing-sperm
#10
Kathie Z Wu, Kun Li, Deni S Galileo, Patricia A Martin-DeLeon
STUDY QUESTION: Is junctional adhesion molecule A (JAM-A), a sperm protein essential for normal motility, expressed in the murine post-testicular pathway and involved in sperm maturation? SUMMARY ANSWER: JAM-A is present in the prostate and seminal vesicles and in all three regions of the epididymis where it is secreted in epididymosomes in the luminal fluid and can be delivered to sperm in vitro. WHAT IS KNOWN ALREADY: JAM-A shares with the plasma membrane Ca(2+)ATPase 4 (PMCA4, the major Ca(2+) efflux pump in murine sperm) a common interacting partner, CASK (Ca(2+)/CaM-dependent serine kinase)...
January 6, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28060758/exosomes-as-mediators-of-platinum-resistance-in-ovarian-cancer
#11
Jennifer Crow, Safinur Atay, Samagya Banskota, Brittany Artale, Sarah Schmitt, Andrew K Godwin
Exosomes have been implicated in the cell-cell transfer of oncogenic proteins and genetic material. We speculated this may be one mechanism by which an intrinsically platinum-resistant population of epithelial ovarian cancer (EOC) cells imparts its influence on surrounding tumor cells. To explore this possibility we utilized a platinum-sensitive cell line, A2780 and exosomes derived from its resistant subclones, and an unselected, platinum-resistant EOC line, OVCAR10. A2780 cells demonstrate a ~2-fold increase in viability upon treatment with carboplatin when pre-exposed to exosomes from platinum-resistant cells as compared to controls...
January 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28057306/the-drosophila-accessory-gland-as-a-model-for-prostate-cancer-and-other-pathologies
#12
C Wilson, A Leiblich, D C I Goberdhan, F Hamdy
The human prostate is a gland of the male reproductive tract, which together with the seminal vesicles, is responsible for most seminal fluid production. It is a common site of cancer, and unlike other glands, it typically enlarges in aging men. In flies, the male accessory glands make many major seminal fluid components. Like their human equivalents, they secrete proteins from several conserved families, including proteases, lectins, and cysteine-rich secretory proteins, some of which interact with sperm and affect fertility...
2017: Current Topics in Developmental Biology
https://www.readbyqxmd.com/read/28056059/high-levels-of-ebv-encoded-rna-1-eber1-trigger-interferon-and-inflammation-related-genes-in-keratinocytes-expressing-hpv16-e6-e7
#13
Sirinart Aromseree, Jaap M Middeldorp, Chamsai Pientong, Monique van Eijndhoven, Octavia Ramayanti, Sinéad M Lougheed, D Michiel Pegtel, Renske D M Steenbergen, Tipaya Ekalaksananan
Different types of cells infected with Epstein-Barr virus (EBV) can release exosomes containing viral components that functionally affect neighboring cells. Previously, we found that EBV was localized mostly in infiltrating lymphocytes within the stromal layer of cervical lesions. In this study, we aimed to determine effects of exosome-transferred EBV-encoded RNAs (EBERs) on keratinocytes expressing human papillomavirus (HPV) 16 E6/E7 (DonorI-HPV16 HFKs). Lipid transfection of in vitro-transcribed EBER1 molecules (ivt EBER1) into DonorI-HPV16 HFKs caused strong induction of interferon (IFN)-related genes and interleukin 6 (IL-6)...
2017: PloS One
https://www.readbyqxmd.com/read/28055956/circulating-exosomal-micrornas-as-prognostic-biomarkers-for-non-small-cell-lung-cancer
#14
Qingyun Liu, Zubin Yu, Shuai Yuan, Weijia Xie, Chengying Li, Zeyao Hu, Ying Xiang, Na Wu, Long Wu, Li Bai, Yafei Li
Exosomal miRNAs are proposed as excellent candidate biomarkers for clinical applications. However, little is known about their potential roles as prognostic biomarkers in lung cancer. In this study, we explored the prognostic value of plasma exosomal microRNAs (miRNAs) for non-small-cell lung cancer (NSCLC). Using a quantitative polymerase chain reaction (qPCR) array panel, we analyzed 84 plasma exosomal miRNAs in 10 lung adenocarcinoma patients and 10 matched healthy controls. The qPCR array showed 30 aberrantly expressed exosomal miRNAs...
December 30, 2016: Oncotarget
https://www.readbyqxmd.com/read/28054319/exosomal-micrornas-in-liquid-biopsies-future-biomarkers-for-prostate-cancer
#15
REVIEW
A Valentino, P Reclusa, R Sirera, M Giallombardo, C Camps, P Pauwels, S Crispi, C Rolfo
Prostate cancer is the second most diagnosed cancer in males in the world. Plasma quantification of prostate-specific antigen substantially improved the early detection of prostate cancer, but still lacks the required specificity. Clinical management of prostate cancer needs advances in the development of new non-invasive biomarkers, ameliorating current diagnosis and prognosis and guiding therapeutic decisions. microRNAs (miRNAs) are a class of small non-coding RNAs that regulate gene expression at the post-transcriptional level...
January 4, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28044936/nano-delivery-in-pediatric-tumors-looking-back-moving-forward
#16
Marta Colletti, Virginia Di Paolo, Angela Galardi, Giuseppe Maria Milano, Angela Mastronuzzi, Franco Locatelli, Angela Di Giannatale
Recent advances in the treatment of pediatric tumors led to an improvement of survival in this population. As a result, many pediatric survivors experience long-term effects that impact their quality of life. Therefore, it is extremely important to identify new treatment approaches that may target the tumor minimizing the drug-related side effects. Over the past 10 years, remarkable advances in nanomedicine have provided several potential tools for cancer treatment. Recently, there has been a growing interest towards therapeutic nanocarriers in the pediatric field, since they represent a new strategy to enhance the drug efficacy and reduce the toxicity...
January 2, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28039693/exosomal-communication-in-glioma-a-review
#17
Hongsheng Xu, Kezhong Zhang, Hailiang Zong, Ming Shang, Kai Li, Xiaoguang He
Cancer research has revealed the existence of cancer stem cells (CSCs). However, the influence of the surrounding stromal cells present in the microenvironment on CSCs is still poorly understood. The latest studies on gliomas suggested that the microenvironment of human gliomas contains both glioma stem cells (GSCs) and glioma associated (GA)-mesenchymal stem cells (MSCs; (GA-MSCs). Also, studies have suggested that nano- sized vesicles, termed exosomes, have been recently observed to contribute towards intercellular communication within the tumor niche...
November 2016: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28038441/visualization-of-exosome-mediated-mir-210-transfer-from-hypoxic-tumor-cells
#18
Kyung Oh Jung, Hyewon Youn, Chul-Hee Lee, Keon Wook Kang, June-Key Chung
Cancer cells actively release exosomes carrying specific cellular components, such as proteins, mRNA, and miRNA, to communicate with various cells in the tumor microenvironment. We visualized exosome-mediated transfer of miR-210 from hypoxic breast cancer cells to neighboring cells using a miR-210 specific reporter system. By in vitro and in vivo visualization, we found that exosomes with miR-210 were transferred to cells in the tumor microenvironment and that miR-210 was involved in expression of vascular remodeling related genes, such as Ephrin A3 and PTP1B, to promote angiogenesis...
December 27, 2016: Oncotarget
https://www.readbyqxmd.com/read/28032400/increasing-circulating-exosomes-carrying-trpc5-predicts-chemoresistance-in-metastatic-breast-cancer-patients
#19
Teng Wang, Kuan Ning, Ting-Xun Lu, Xu Sun, Linfang Jin, Xiaowei Qi, Jian Jin, Dong Hua
Chemoresistance, the major obstacle in breast cancer chemotherapy, results in unnecessary chemotherapy and wasting of medical resources. Up to now, no feasible method is available to predict chemoresistance before chemotherapy. In our previously study, elevated expression of transient receptor potential channel TRPC5 was found as an essential element for chemoresistance in breast cancer cells, and could be transferred to chemosensitive breast cancer cells through releasing extracellular vesicles (EVs)-containing TRPC5 from chemoresistant cells, resulting in acquired chemoresistance...
December 29, 2016: Cancer Science
https://www.readbyqxmd.com/read/28031234/the-multiple-roles-of-exosomes-in-metastasis
#20
REVIEW
Ulrich H Weidle, Fabian Birzele, Gwen Kollmorgen, Rüdiger Rüger
Exosomes are important contributors to cell-cell communication and their role as diagnostic markers for cancer and the pathogenesis for cancer is under intensive investigation. Here, we focus on their role in metastasis-related processes. We discuss their impact regarding promotion of invasion and migration of tumor cells, conditioning of lymph nodes, generation of premetastatic niches and organotropism of metastasis. Furthermore, we highlight interactions of exosomes with bone marrow and stromal components such as fibroblasts, endothelial cells, myeloid- and other immune-related cells in the context of metastases...
January 2017: Cancer Genomics & Proteomics
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