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https://www.readbyqxmd.com/read/28415791/evaluation-of-the-circulating-level-of-fibroblast-activation-protein-%C3%AE-for-diagnosis-of-esophageal-squamous-cell-carcinoma
#1
Yuehua Liao, Shan Xing, Banglao Xu, Wanli Liu, Ge Zhang
To evaluate whether circulating fibroblast activation protein α (FAPα) could serve as a biomarker for the diagnosis of esophageal squamous cell carcinoma (ESCC), enzyme-linked immunosorbent assay (ELISA) was used to detect plasma FAPα in 556 participants including ESCC group, benign esophageal disease group, healthy controls and other cancer controls group. The levels of plasma FAPα were significantly decreased in ESCC patients (P < 0.001) and showed a positive correlation with HDL-C levels (R = 0.372, P < 0...
March 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28389623/neoplastic-plasma-cells-generate-an-inflammatory-environment-within-bone-marrow-and-markedly-alter-the-distribution-of-t-cells-between-lymphoid-compartments
#2
Oliver C Goodyear, Sarah Essex, Anandram Seetharam, Supratik Basu, Paul Moss, Guy Pratt
Monoclonal gammopathy of undetermined significance (MGUS) and multiple myeloma (MM) are characterised by the accumulation of malignant plasma cells within bone marrow and lead to a range of abnormalities in the peripheral blood T cell repertoire. We investigated the level of inflammatory chemokines within the bone marrow and blood of patients with MGUS and MM and related this to the pattern of chemokine receptor expression on T cells in both compartments.The expression of a wide range of chemokine ligands for CXCR3 and CCR4 was markedly increased within the bone marrow of patients with MGUS and MM compared to healthy donors...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28376564/adipogenic-differentiation-of-msc-alters-their-immunomodulatory-properties-in-a-tissue-specific-manner
#3
Hafsa Munir, Lewis S C Ward, Lozan Sheriff, Samuel Kemble, Saba Nayar, Francesca Barone, Gerard B Nash, Helen M McGettrick
Chronic inflammation is associated with formation of ectopic fat deposits that might represent damage-induced aberrant mesenchymal stem cell (MSC) differentiation. Such deposits are associated with increased levels of inflammatory infiltrate and poor prognosis. Here we tested the hypothesis that differentiation from MSC to adipocytes in inflamed tissue might contribute to chronicity through loss of immunomodulatory function. We assessed the effects of adipogenic differentiation of MSC from bone marrow or adipose tissue- on their capacity to regulate neutrophil recruitment by endothelial cells and compared the differentiated cells to primary adipocytes from adipose tissue...
April 4, 2017: Stem Cells
https://www.readbyqxmd.com/read/28340565/u-par-expression-in-cancer-associated-fibroblast-new-acquisitions-in-multiple-myeloma-progression
#4
S Ciavarella, A Laurenzana, S De Summa, B Pilato, A Chillà, R Lacalamita, C Minoia, F Margheri, A Iacobazzi, A Rana, F Merchionne, G Fibbi, M Del Rosso, A Guarini, S Tommasi, S Serratì
BACKGROUND: Multiple Myeloma (MM) is a B-cell malignancy in which clonal plasma cells progressively expand within the bone marrow (BM) as effect of complex interactions with extracellular matrix and a number of microenvironmental cells. Among these, cancer-associated fibroblasts (CAF) mediate crucial reciprocal signals with MM cells and are associated to aggressive disease and poor prognosis. A large body of evidence emphasizes the role of the urokinase plasminogen activator (u-PA) and its receptor u-PAR in potentiating the invasion capacity of tumor plasma cells, but little is known about their role in the biology of MM CAF...
March 24, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28318921/influence-of-tgf-%C3%AE-1-on-tumor-transition-in-oral-cancer-cell-and-bmsc-co-cultures
#5
F Böhrnsen, F Godek, J Kiesel, F J Kramer, P Brockmeyer, H Schliephake
OBJECTIVES: TGF-β1 signaling modulates epithelial mesenchymal transitions (EMT) of head and neck squamous cell carcinoma (HNSCC). Bone marrow mesenchymal stromal cells (BMSC) are able to exert a regulating influence on the expression of markers of EMT in HNSCC cells. It was thus the aim of this study to test the hypothesis that TGF-β1 modulates the interactions of tumor transition between BMSCs and HNSCC, affecting the expression of E-cadherin, Vimentin, Snail, Twist, MMP14 and beta-catenin...
February 17, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28275010/epithelial-and-non-epithelial-patched-1-ptch1-play-opposing-roles-to-regulate-proliferation-and-morphogenesis-of-the-mouse-mammary-gland
#6
Teresa Monkkonen, John D Landua, Adriana P Visbal, Michael T Lewis
Patched-1 (Ptch1) has epithelial, stromal, and systemic roles in murine mammary gland organogenesis, yet specific functions remain undefined. Cre-recombinase-mediated Ptch1 ablation in mammary epithelium increased proliferation and branching, but did not phenocopy transgenic expression of activated Smoothened (SmoM2). Epithelium showed no evidence of canonical hedgehog signaling, and hyperproliferation was not blocked by SMO inhibition, suggesting a non-canonical function of PTCH1. Consistent with this possibility, nuclear localization of Cyclin B1 was increased...
March 8, 2017: Development
https://www.readbyqxmd.com/read/28254837/osteopontin-attenuates-aging-associated-phenotypes-of-hematopoietic-stem-cells
#7
Novella Guidi, Mehmet Sacma, Ludger Ständker, Karin Soller, Gina Marka, Karina Eiwen, Johannes M Weiss, Frank Kirchhoff, Tanja Weil, Jose A Cancelas, Maria Carolina Florian, Hartmut Geiger
Upon aging, hematopoietic stem cells (HSCs) undergo changes in function and structure, including skewing to myeloid lineages, lower reconstitution potential and loss of protein polarity. While stem cell intrinsic mechanisms are known to contribute to HSC aging, little is known on whether age-related changes in the bone marrow niche regulate HSC aging. Upon aging, the expression of osteopontin (OPN) in the murine bone marrow stroma is reduced. Exposure of young HSCs to an OPN knockout niche results in a decrease in engraftment, an increase in long-term HSC frequency and loss of stem cell polarity...
April 3, 2017: EMBO Journal
https://www.readbyqxmd.com/read/28252626/-numbers-of-early-cd34-progenitors-of-bone-marrow-hematopoiesis-in-patients-with-diffuse-large-b-cell-lymphoma
#8
E I Dorokhina, A U Magomedova, I V Galtseva, V N Dvirnyk, S A Glinkina, S M Kulikov, S K Kravchenko
AIM: To estimate the number of early progenitors of bone marrow (BM) hematopoiesis in patients with diffuse large B-cell lymphoma (DLBCL) in the late period after high-dose chemotherapy (HDCT) according to the mNHL-BFM-90 program. SUBJECTS AND METHODS: The investigators analyzed the results of BM immunophenotypic and histological studies in 40 patients (median age, 57 years) with DLBCL who received HDCT according to the mNHL-BFM-90 program at the Hematology Research Center (HRC), Ministry of Health of the Russian Federation (MHRF), in the period 2002 to 2009...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28238095/adp-ribosylation-factor-1-arf1-takes-part-in-cell-proliferation-and-cell-adhesion-mediated-drug-resistance-cam-dr
#9
Xiaohong Xu, Qiru Wang, Yunhua He, Linlin Ding, Fei Zhong, Yangyu Ou, Yaodong Shen, Hong Liu, Song He
Cell adhesion-mediated drug resistance (CAM-DR) remains the primary obstacle in human multiple myeloma (MM) therapy. In this study, we aimed at investigating the expression and biologic function of ARF1 in MM. We determined that ARF1 expression was positively correlated with cell proliferation and knockdown of ARF1 contributed to CAM-DR. The enhancement in the adhesion of MM cells to fibronectin (FN) or the bone marrow stroma cell line HS-5 cells translated to an increased CAM-DR phenotype. Importantly, we showed that this CAM-DR phenotype was correlated with the phosphorylation of Akt and ERK in MM cells...
May 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28219003/targeting-the-cxcl12-cxcr4-axis-in-acute-myeloid-leukemia-from-bench-to-bedside
#10
REVIEW
Byung-Sik Cho, Hee-Je Kim, Marina Konopleva
The interactions between the cancerous cells of acute myeloid leukemia (AML) and the bone marrow (BM) microenvironment have been postulated to be important for resistance to chemotherapy and disease relapse in AML. The chemokine receptor CXC chemokine receptor 4 (CXCR4) and its ligand, CXC motif ligand 12 (CXCL12), also known as stromal cell-derived factor 1α, are key mediators of this interaction. CXCL12 is produced by the BM microenvironment, binds and activates its cognate receptor CXCR4 on leukemic cells, facilitates leukemia cell trafficking and homing in the BM microenvironment, and keeps leukemic cells in close contact with the stromal cells and extracellular matrix that constitutively generate growth-promoting and anti-apoptotic signals...
March 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28216675/extracellular-superoxide-dismutase-expression-in-papillary-thyroid-cancer-mesenchymal-stem-stromal-cells-modulates-cancer-cell-growth-and-migration
#11
Alessia Parascandolo, Francesca Rappa, Francesco Cappello, Jaehyup Kim, David A Cantu, Herbert Chen, Gianluigi Mazzoccoli, Peiman Hematti, Maria Domenica Castellone, Marco Salvatore, Mikko O Laukkanen
Tumor stroma-secreted growth factors, cytokines, and reactive oxygen species (ROS) influence tumor development from early stages to the metastasis phase. Previous studies have demonstrated downregulation of ROS-producing extracellular superoxide dismutase (SOD3) in thyroid cancer cell lines although according to recent data, the expression of SOD3 at physiological levels stimulates normal and cancer cell proliferation. Therefore, to analyze the expression of SOD3 in tumor stroma, we characterized stromal cells from the thyroid...
February 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28202459/il-4-cxcl12-loop-is-a-key-regulator-of-lymphoid-stroma-function-in-follicular-lymphoma
#12
Shubham Pandey, Frédéric Mourcin, Tony Marchand, Saba Nayar, Marion Guirriec, Céline Pangault, Céline Monvoisin, Patricia Amé-Thomas, Fabien Guilloton, Joelle Dulong, Mark Coles, Thierry Fest, Anja Mottok, Francesca Barone, Karin Tarte
Follicular lymphoma (FL) is the most frequent indolent lymphoma and is characterized by the accumulation of germinal center-derived malignant B cells engaged in a bidirectional crosstalk with their supportive microenvironment in invaded lymph nodes (LN) and bone marrow (BM). T follicular helper cells (TFH) and infiltrating stromal cells have been shown to favor FL B-cell growth but the mechanisms of their protumoral effect and how LN/BM microenvironment is converted into a lymphoma-permissive cell niche remain poorly understood...
February 15, 2017: Blood
https://www.readbyqxmd.com/read/28194153/nasal-polyp-derived-mesenchymal-stromal-cells-exhibit-lack-of-immune-associated-molecules-and-high-levels-of-stem-progenitor-cells-markers
#13
Pedro Wey Barbosa de Oliveira, Rogério Pezato, Juan Sebastian Henao Agudelo, Claudina Angela Perez-Novo, Wim Vanden Berghe, Niels Olsen Câmara, Danilo Candido de Almeida, Luís Carlos Gregorio
Mesenchymal stromal cells (MSCs) are considered adult progenitor stem cells and have been studied in a multitude of tissues. In this context, the microenvironment of nasal polyp tissue has several inflammatory cells, but their stroma compartment remains little elucidated. Hence, we isolated MSCs from nasal polyps Polyp-MSCs (PO-MSCs) and compared their molecular features and gene expression pattern with bone marrow-derived MSCs (BM-MSCs). Initially, both PO-MSCs and BM-MSCs were isolated, cultivated, and submitted to morphologic, differentiation, phenotypic, immunosuppressive, and gene expression assays...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28186102/cancer-cell-secreted-igf2-instigates-fibroblasts-and-bone-marrow-derived-vascular-progenitor-cells-to-promote-cancer-progression
#14
Wen Wen Xu, Bin Li, Xin Yuan Guan, Sookja K Chung, Yang Wang, Yim Ling Yip, Simon Y K Law, Kin Tak Chan, Nikki P Y Lee, Kwok Wah Chan, Li Yan Xu, En Min Li, Sai Wah Tsao, Qing-Yu He, Annie L M Cheung
Local interactions between cancer cells and stroma can produce systemic effects on distant organs to govern cancer progression. Here we show that IGF2 secreted by inhibitor of differentiation (Id1)-overexpressing oesophageal cancer cells instigates VEGFR1-positive bone marrow cells in the tumour macroenvironment to form pre-metastatic niches at distant sites by increasing VEGF secretion from cancer-associated fibroblasts. Cancer cells are then attracted to the metastatic site via the CXCL5/CXCR2 axis. Bone marrow cells transplanted from nude mice bearing Id1-overexpressing oesophageal tumours enhance tumour growth and metastasis in recipient mice, whereas systemic administration of VEGFR1 antibody abrogates these effects...
February 10, 2017: Nature Communications
https://www.readbyqxmd.com/read/28160570/resistance-of-leukemia-cells-to-cytarabine-chemotherapy-is-mediated-by-bone-marrow-stroma-involves-cell-surface-equilibrative-nucleoside-transporter-1-removal-and-correlates-with-patient-outcome
#15
Patricia Macanas-Pirard, Richard Broekhuizen, Alfonso González, Claudia Oyanadel, Daniel Ernst, Patricia García, Viviana P Montecinos, Felipe Court, Mauricio Ocqueteau, Pablo Ramirez, Bruno Nervi
The interaction between acute myeloid leukemia cells (AML) with the bone marrow stroma cells (BMSCs) determines a protective environment that favors tumor development and resistance to conventional chemotherapy. We showed that BMSCs secrete soluble factors that protect AML cells from Ara-C induced cytotoxicity. This leukemia chemoresistance is associated with a decrease in the equilibrative nucleoside transporter (ENT1) activity by inducing removal of ENT1 from the cell surface. Reduction of cell proliferation was also observed with activation of AKT and mTOR-dependent cell survival pathways, which may also contribute to the tumor chemoprotection...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28158249/rb-inactivation-in-keratin-18-positive-thymic-epithelial-cells-promotes-non-cell-autonomous-t-cell-hyperproliferation-in-genetically-engineered-mice
#16
Yurong Song, Teresa Sullivan, Kimberly Klarmann, Debra Gilbert, T Norene O'Sullivan, Lucy Lu, Sophie Wang, Diana C Haines, Terry Van Dyke, Jonathan R Keller
Thymic epithelial cells (TEC), as part of thymic stroma, provide essential growth factors/cytokines and self-antigens to support T cell development and selection. Deletion of Rb family proteins in adult thymic stroma leads to T cell hyperplasia in vivo. To determine whether deletion of Rb specifically in keratin (K) 18 positive TEC was sufficient for thymocyte hyperplasia, we conditionally inactivated Rb and its family members p107 and p130 in K18+ TEC in genetically engineered mice (TgK18GT121; K18 mice). We found that thymocyte hyperproliferation was induced in mice with Rb inactivation in K18+ TEC, while normal T cell development was maintained; suggesting that inactivation of Rb specifically in K18+ TEC was sufficient and responsible for the phenotype...
2017: PloS One
https://www.readbyqxmd.com/read/28154566/histological-architecture-underlying-brain-immune-cell-cell-interactions-and-the-cerebral-response-to-systemic-inflammation
#17
Atsuyoshi Shimada, Sanae Hasegawa-Ishii
Although the brain is now known to actively interact with the immune system under non-inflammatory conditions, the site of cell-cell interactions between brain parenchymal cells and immune cells has been an open question until recently. Studies by our and other groups have indicated that brain structures such as the leptomeninges, choroid plexus stroma and epithelium, attachments of choroid plexus, vascular endothelial cells, cells of the perivascular space, circumventricular organs, and astrocytic endfeet construct the histological architecture that provides a location for intercellular interactions between bone marrow-derived myeloid lineage cells and brain parenchymal cells under non-inflammatory conditions...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28151428/bone-marrow-microenvironment-derived-signals-induce-mcl-1-dependence-in-multiple-myeloma
#18
Vikas A Gupta, Shannon M Matulis, Jason E Conage-Pough, Ajay K Nooka, Jonathan L Kaufman, Sagar Lonial, Lawrence H Boise
Multiple myeloma is highly dependent on the bone marrow microenvironment until progressing to very advanced extramedullary stages of the disease such as plasma cell leukemia. Stromal cells in the bone marrow secrete a variety of cytokines that promote plasma cell survival by regulating antiapoptotic members of the Bcl-2 family including Mcl-1, Bcl-xL, and Bcl-2. Although the antiapoptotic protein on which a cell depends is typically consistent among normal cells of a particular phenotype, Bcl-2 family dependence is highly heterogeneous in multiple myeloma...
April 6, 2017: Blood
https://www.readbyqxmd.com/read/28132882/tumor-stroma-interaction-is-mediated-by-monocarboxylate-metabolism
#19
Brijesh B Patel, Ellen Ackerstaff, Inna S Serganova, John E Kerrigan, Ronald G Blasberg, Jason A Koutcher, Debabrata Banerjee
Human breast tumors contain significant amounts of stromal cells. There exists strong evidence that these stromal cells support cancer development and progression by altering various pathways (e.g. downregulation of tumor suppressor genes or autocrine signaling loops). Here, we suggest that stromal carcinoma-associated fibroblasts (CAFs), shown to be generated from bone marrow-derived mesenchymal stem cells, may (i) recycle tumor-derived lactate for their own energetic requirements, thereby sparing glucose for neighboring glycolytic tumor cells, and (ii) subsequently secrete surplus energetically and biosynthetically valuable metabolites of lactate oxidation, such as pyruvate, to support tumor growth...
March 1, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28114283/an-integrated-analysis-identifies-stat4-as-a-key-regulator-of-ovarian-cancer-metastasis
#20
L Zhao, G Ji, X Le, Z Luo, C Wang, M Feng, L Xu, Y Zhang, W B Lau, B Lau, Y Yang, L Lei, H Yang, Y Xuan, Y Chen, X Deng, T Yi, S Yao, X Zhao, Y Wei, S Zhou
Epithelial ovarian cancer (EOC) is one of the most common gynecological cancers, with diagnosis often at a late stage. Metastasis is a major cause of death in patients with EOC, but the underlying molecular mechanisms remain obscure. Here, we utilized an integrated approach to find potential key transcription factors involved in ovarian cancer metastasis and identified STAT4 as a critical player in ovarian cancer metastasis. We found that activated STAT4 was overexpressed in epithelial cells of ovarian cancer and STAT4 overexpression was associated with poor outcome of ovarian cancer patients, which promoted metastasis of ovarian cancer in both in vivo and in vitro...
January 23, 2017: Oncogene
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