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Bone marrow microenvironment

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https://www.readbyqxmd.com/read/28811575/biological-and-functional-characterization-of-bone-marrow-derived-mesenchymal-stromal-cells-from-patients-affected-by-primary-immunodeficiency
#1
Nadia Starc, Daniela Ingo, Antonella Conforti, Valeria Rossella, Luigi Tomao, Angela Pitisci, Fabiola De Mattia, Immacolata Brigida, Mattia Algeri, Mauro Montanari, Giuseppe Palumbo, Pietro Merli, Paolo Rossi, Alessandro Aiuti, Franco Locatelli, Maria Ester Bernardo
Mesenchymal stromal cells (MSCs) represent a key component of bone marrow (BM) microenvironment and display immune-regulatory properties. We performed a detailed analysis of biological/functional properties of BM-MSCs derived from 33 pediatric patients affected by primary immune-deficiencies (PID-MSCs): 7 Chronic Granulomatous Disease (CGD), 15 Wiskott-Aldrich Syndrome (WAS), 11 Severe Combined Immunodeficiency (SCID). Results were compared with MSCs from 15 age-matched pediatric healthy-donors (HD-MSCs). Clonogenic and proliferative capacity, differentiation ability, immunophenotype, immunomodulatory properties were analyzed...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28810341/-research-progress-of-bone-marrow-microenvironment-abnormalities-in-myelodysplastic-syndrome
#2
P Y Dong, L F Huang, H Y Sun
No abstract text is available yet for this article.
July 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28809828/bioengineering-of-humanized-bone-marrow-microenvironments-in-mouse-and-their-visualization-by-live-imaging
#3
Diana Passaro, Ander Abarrategi, Katie Foster, Linda Ariza-McNaughton, Dominique Bonnet
Human hematopoietic stem cells (HSCs) reside in the bone marrow (BM) niche, an intricate, multifactorial network of components producing cytokines, growth factors, and extracellular matrix. The ability of HSCs to remain quiescent, self-renew or differentiate, and acquire mutations and become malignant depends upon the complex interactions they establish with different stromal components. To observe the crosstalk between human HSCs and the human BM niche in physiological and pathological conditions, we designed a protocol to ectopically model and image a humanized BM niche in immunodeficient mice...
August 1, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28809406/clot-entrapped-blood-cells-in-synergy-with-human-mesenchymal-stem-cells-create-a-pro-angiogenic-healing-response
#4
Melanie A Burkhardt, Isabel Gerber, Cameron Moshfegh, Miriam S Lucas, Jasmin Waser, Maximilian Y Emmert, Simon P Hoerstrup, Falko Schlottig, Viola Vogel
Blood clots stop bleeding and provide cell-instructive microenvironments. Still, in vitro models used to study implant performance typically neglect any possible interactions of recruited cells with surface-adhering blood clots. Here we study the interaction and synergies of bone marrow derived human mesenchymal stem cells (hMSCs) with surface-induced blood clots in an in vitro model by fluorescence microscopy, scanning and correlative light and electron microscopy, ELISA assays and zymography. The clinically used alkali-treated rough titanium (Ti) surfaces investigated here are known to enhance blood clotting compared to native Ti and to improve the healing response, but the underlying mechanisms remain elusive...
August 15, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/28807161/phytochemical-modulation-of-apoptosis-and-autophagy-strategies-to-overcome-chemoresistance-in-leukemic-stem-cells-in-the-bone-marrow-microenvironment
#5
Helen C Owen, Sandra Appiah, Noor Hasan, Lucy Ghali, Ghada Elayat, Celia Bell
Advances in scientific research and targeted treatment regimes have improved survival rates for many cancers over the past few decades. However, for some types of leukemia, including acute lymphoblastic and acute myeloid leukemia, mortality rates have continued to rise, with chemoresistance in leukemic stem cells (LSCs) being a major contributing factor. Most cancer drug therapies act by inducing apoptosis in dividing cells but are ineffective in targeting quiescent LSCs. Niches in the bone marrow, known as leukemic niches, behave as "sanctuaries" where LSCs acquire drug resistance...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28802664/cytokines-and-soluble-hla-g-levels-in-bone-marrow-stroma-and-their-association-with-the-survival-rate-of-patients-exhibiting-childhood-t-cell-acute-lymphoblastic-leukemia
#6
Renata Dos Santos Almeida, Alessandra Maria de Luna Ramos, Carlos Feitosa Luna, Francisco Pedrosa, Eduardo Antônio Donadi, Norma Lucena-Silva
Leukemic cells can induce defective expression of soluble factors and change marrow cytokine profile, leading to aberrant cell signaling, cell fixation and cell proliferation in bone marrow. T-cell acute lymphoblastic leukemia (T-ALL) is an aggressive disorder which accounts for 15% of pediatric ALL. To evaluate the contribution of immunological factors on T-ALL survival, we measured Th1, Th2, Th17 cytokines and soluble HLA-G (sHLA-G) levels in bone marrow from 32 Brazilian children at diagnosis (D0), after induction (D19) and after consolidation (D49) of the chemotherapy phase...
August 9, 2017: Cytokine
https://www.readbyqxmd.com/read/28767666/mismatch-repair-deficient-hematopoietic-stem-cells-are-preleukemic-stem-cells
#7
Yulan Qing, Stanton L Gerson
Whereas transformation events in hematopoietic malignancies may occur at different developmental stages, the initial mutation originates in hematopoietic stem cells (HSCs), creating a preleukemic stem cell (PLSC). Subsequent mutations at either stem cell or progenitor cell levels transform the PLSC into lymphoma/leukemia initiating cells (LIC). Thymic lymphomas have been thought to develop from developing thymocytes. T cell progenitors are generated from HSCs in the bone marrow (BM), but maturation and proliferation of T cells as well as T-lymphomagenesis depends on both regulatory mechanisms and microenvironment within the thymus...
2017: PloS One
https://www.readbyqxmd.com/read/28764810/cd106-is-a-novel-mediator-of-bone-marrow-mesenchymal-stem-cells-via-nf-%C3%AE%C2%BAb-in-the-bone-marrow-failure-of-acquired-aplastic-anemia
#8
Shihong Lu, Meili Ge, Yizhou Zheng, Jianping Li, Xiaoming Feng, Sizhou Feng, Jinbo Huang, Ying Feng, Donglin Yang, Jun Shi, Fang Chen, Zhongchao Han
BACKGROUND: Acquired aplastic anemia (AA) is characterized by deficiency or dysfunction of the bone marrow (BM) microenvironment. However, little is known about the impairment of BM-derived mesenchymal stem cells (MSCs) in AA patients. METHODS: We used Illumina HiSeqTM 2000 sequencing, quantitative real-time polymerase chain reaction (qRT-PCR), flow cytometry (FCM), and Western blotting to test the expression of CD106 gene (vascular cell adhesion molecule 1 (VCAM1)) and CD106 protein of BM-MSCs...
August 1, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28761818/effects-of-mesenchymal-stem-cell-derivatives-on-hematopoiesis-and-hematopoietic-stem-cells
#9
REVIEW
Sara Aqmasheh, Karim Shamsasanjan, Parvin Akbarzadehlaleh, Davod Pashoutan Sarvar, Hamze Timari
Hematopoiesis is a balance among quiescence, self-renewal, proliferation, and differentiation, which is believed to be firmly adjusted through interactions between hematopoietic stem and progenitor cells (HSPCs) with the microenvironment. This microenvironment is derived from a common progenitor of mesenchymal origin and its signals should be capable of regulating the cellular memory of transcriptional situation and lead to an exchange of stem cell genes expression. Mesenchymal stem cells (MSCs) have self-renewal and differentiation capacity into tissues of mesodermal origin, and these cells can support hematopoiesis through release various molecules that play a crucial role in migration, homing, self-renewal, proliferation, and differentiation of HSPCs...
June 2017: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28759800/mesenchymal-stem-cells-derived-from-multiple-myeloma-patients-protect-against-chemotherapy-through-autophagy-dependent-activation-of-nf-%C3%AE%C2%BAb-signaling
#10
HongLiang Yang, YingChun Zheng, YiZhuo Zhang, Zeng Cao, Yingzhe Jiang
Chemotherapy resistance has been considered as a major problem for multiple myeloma (MM) treatment and bone marrow microenvironment plays a crucial role in the MM progression and chemoresistance. Recent studies reported that bone marrow mesenchymal stem cells derived from MM patients (MM-MSCs) revealed various characteristics compared with these from healthy subjects (NM-MSCs). However, the functions and mechanisms by which MM-MSCs mediate the chemotherapy resistance of MM remain unclear. In this study, we show that MM-MSCs decreased melphalan or doxorubicin-induced cell cycle arrest and apoptosis in two MM cell lines (U266 and RPMI-8226)...
July 25, 2017: Leukemia Research
https://www.readbyqxmd.com/read/28757529/inhibition-of-adipogenesis-is-involved-in-the-protective-effects-of-1-25-dihydroxy-vitamin-d3-on-the-radiation-injured-bone-marrow-microenvironment-in-mice
#11
Zhao Zhou, Xiao-Yu Chen, Ai-Zhen Zhu, Cheng-Cheng Liu, Jin-Can Zhu, Ge-Xiu Liu
To explore the protective effects of 1,25-dihydroxy vitamin D3 (1,25-(OH)2D3) on the bone marrow microenvironment in mice after irradiation and the underlying molecular mechanisms, a total of 150 7-wk-old male BALB/c mice were randomly divided into a normal group, an irradiation (IR) group and an irradiation+1,25-(OH)2D3 (IR+VD3) group. The mice in the IR+VD3 group were treated with 6.0 Gy (60)Coγ rays, and 1,25-(OH)2D3 (dissolved in DMSO, 2.5 μg/kg) was administered once per day from 2 d before to 8 d after irradiation...
2017: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/28756624/double-edged-sword-of-mesenchymal-stem-cells-cancer-promoting-vs-therapeutic-potentials
#12
REVIEW
Hwa-Yong Lee, In-Sun Hong
Mesenchymal stem cells (MSCs) derived from adipose tissue, bone marrow, cord blood, and other tissues, have recently attracted much attention as potential therapeutic agents in various diseases due to their trans-differentiation capacity. However, recent studies suggested that MSCs also appear to contribute tumor pathogenesis by supporting tumor microenvironments, increasing tumor growth, and eliciting anti-tumor immune responses. While some studies suggest that MSCs have the inhibitory effects on tumor development, they are overwhelmed by a member of researches that MSCs exert stimulatory effects on tumor pathogenesis...
July 30, 2017: Cancer Science
https://www.readbyqxmd.com/read/28754858/melphalan-modifies-the-bone-microenvironment-by-enhancing-osteoclast-formation
#13
Ryan C Chai, Michelle M McDonald, Rachael L Terry, Nataša Kovačić, Jenny M Down, Jessica A Pettitt, Sindhu T Mohanty, Shruti Shah, Gholamreza Haffari, Jiake Xu, Matthew T Gillespie, Michael J Rogers, John T Price, Peter I Croucher, Julian M W Quinn
Melphalan is a cytotoxic chemotherapy used to treat patients with multiple myeloma (MM). Bone resorption by osteoclasts, by remodeling the bone surface, can reactivate dormant MM cells held in the endosteal niche to promote tumor development. Dormant MM cells can be reactivated after melphalan treatment; however, it is unclear whether melphalan treatment increases osteoclast formation to modify the endosteal niche.Melphalan treatment of mice for 14 days decreased bone volume and the endosteal bone surface, and this was associated with increases in osteoclast numbers...
July 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28754680/versican-derived-matrikines-regulate-batf3-dendritic-cell-differentiation-and-promote-t-cell-infiltration-in-colorectal-cancer
#14
Chelsea Hope, Philip B Emmerich, Athanasios Papadas, Adam Pagenkopf, Kristina A Matkowskyj, Dana R Van De Hey, Susan N Payne, Linda Clipson, Natalie S Callander, Peiman Hematti, Shigeki Miyamoto, Michael G Johnson, Dustin A Deming, Fotis Asimakopoulos
Colorectal cancer originates within immunologically complex microenvironments. To date, the benefits of immunotherapy have been modest, except in neoantigen-laden mismatch repair-deficient tumors. Approaches to enhance tumor-infiltrating lymphocytes in the tumor bed may substantially augment clinical immunotherapy responses. In this article, we report that proteolysis of the tolerogenic matrix proteoglycan versican (VCAN) strongly correlated with CD8(+) T cell infiltration in colorectal cancer, regardless of mismatch repair status...
July 28, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28754309/retinoic-acid-cyp26-and-drug-resistance-in-the-stem-cell-niche
#15
REVIEW
Salvador Alonso, Richard J Jones, Gabriel Ghiaur
The bone marrow niche is essential for hematopoietic stem cells to maintain lifelong blood production, by balancing their self-renewal and differentiation. Hematologic malignancies have a similar hierarchical organization to their normal counterparts, with rare populations of cancer stem cells that rely on the microenvironment to survive and propagate their differentiated malignant progenitor cells. Cancer cells alter their microenvironment to create a supportive niche where they endure chemotherapy, survive as minimal residual disease, and eventually prevail at relapse...
July 25, 2017: Experimental Hematology
https://www.readbyqxmd.com/read/28753604/socs1-function-in-bcr-abl-mediated-myeloproliferative-disease-is-dependent-on-the-cytokine-environment
#16
Özlem Demirel, Olivier Balló, Pavankumar N G Reddy, Olesya Vakhrusheva, Jing Zhang, Astrid Eichler, Ramona Fernandes, Susanne Badura, Hubert Serve, Christian Brandts
Treatment with tyrosine kinase inhibitors is the standard of care for Philadelphia chromosome positive leukemias. However the eradication of leukemia initiating cells remains a challenge. Circumstantial evidence suggests that the cytokine microenvironment may play a role in BCR-ABL mediated leukemogenesis and in imatinib resistance. Gene expression analyses of BCR-ABL positive ALL long-term cultured cells revealed strong reduction of SOCS mRNA expression after imatinib treatment, thereby demonstrating a strong inhibition of cytokine signaling...
2017: PloS One
https://www.readbyqxmd.com/read/28752541/functionalization-of-porous-bcp-scaffold-by-generating-cell-derived-extracellular-matrix-from-rat-bone-marrow-stem-cells-culture-for-bone-tissue-engineering
#17
Boram Kim, Reiza Ventura, Byong-Taek Lee
The potential of decellularized cell-derived ECM deposited on biphasic calcium phosphate (BCP) scaffold for bone tissue engineering was investigated. Rat derived bone marrow mesenchymal stem cells (RBMSCs) were cultured on porous BCP scaffolds for 3 weeks and decellularized with two different methods (freeze-thaw (F/T) or sodium dodecyl sulfate (SDS)). The decellularized ECM deposited scaffolds (dECM-BCP) were characterized through scanning electron microscopy, energy dispersive X-ray spectrometer, and confocal microscopy...
July 28, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28744650/role-of-nf-%C3%AE%C2%BAb-pi3k-mapk-erk-1-2-and-p38-in-erythropoietin-production-by-bone-marrow-nuclears-under-conditions-of-immobilization-stress
#18
L A Miroshnichenko, V V Zhdanov, E V Udut, T Yu Polyakova, G N Zyuz'kov, E V Simanina, E Yu Sherstoboev, L A Stavrova, V I Agafonov, M Yu Minakova, A V Chaikovskii, A M Dygai
The involvement of the studied signal cascades in the regulation of erythropoietin production by bone marrow nuclears under conditions of immobilization stress depends on the type of the hemopoiesis-inducing microenvironment cells and the period of blood system reaction to stress exposure. Secretory activity of monocytes is regulated mainly by PI3K improving cell resistance to disturbances. The functional role of signal cascades involved in the production of erythropoietin by T cells is determined by the stage of the common adaptation syndrome...
July 26, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28739594/here-there-and-anywhere-arguments-for-and-against-the-physical-plasma-cell-survival-niche
#19
REVIEW
Joel R Wilmore, David Allman
To maintain Ab titers, individual plasma cells must survive for extended periods, perhaps even for the life of the host. Although it is clear that plasma cell survival requires cell extrinsic signals, the nature and source of these signals remains open for debate. It is commonly postulated that plasma cells only gain access to these signals within specialized regulatory microenvironments, or niches, in the bone marrow or in the gut. In this review we discuss current concepts and information surrounding plasma cell survival niches, and consider two opposing models to explain long-term serologic immunity...
August 1, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28739509/proteomic-analysis-of-the-secretome-of-human-bone-marrow-derived-mesenchymal-stem-cells-primed-by-pro-inflammatory-cytokines
#20
Elisa Maffioli, Nonnis Simona, Roberta Angioni, Fabiana Santagata, Bianca Calì, Lucia Zanotti, Armando Negri, Antonella Viola, Gabriella Tedeschi
Mesenchymal stem cells (MSC) represent an impressive opportunity in term of regenerative medicine and immunosuppressive therapy. Although it is clear that upon transplantation MSC exert most of their therapeutic effects through the secretion of bioactive molecules, the effects of a pro-inflammatory recipient environment on MSC secretome have not been characterized. In this study, we used a label free mass spectrometry based quantitative proteomic approach to analyze how pro-inflammatory cytokines modulate the composition of the human MSC secretome...
July 21, 2017: Journal of Proteomics
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