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https://www.readbyqxmd.com/read/28531813/immunomodulatory-function-of-whole-human-umbilical-cord-derived-mesenchymal-stem-cells
#1
Hao Zhang, Yanling Tao, Haihui Liu, Saisai Ren, Bin Zhang, Hu Chen
Bone marrow derived mesenchymal stem cells (MSCs) play a critical role in immune modulation. However, immunomodulatory function of whole human umbilical cord derived mesenchymal stem cells (UC-MSCs) remains unclear. In this study, UC-MSCs were separated from whole umbilical cord using a single enzyme digestion. UC-MSCs (CD73(+), CD90(+), CD105(+), and CD34(-), CD45(-), HLA-DR(-)) were differentiated into adipocytes, osteocytes and chondrocytes in vitro under specific stimulatory environments. UC-MSCs suppressed umbilical cord blood lymphocyte proliferation stimulated by mitogen, and ELISA showed that the secretion of INF-γ was downregulated, and the secretion of IL-4 was upregulated, with CD8(+) T cells markedly decreased and CD4(+) T cells changed lightly...
May 19, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28529456/ethyl-acetate-fraction-of-huogu-formula-inhibits-adipogenic-differentiation-of-bone-marrow-stromal-cells-via-the-bmp-and-wnt-signaling-pathways
#2
Xiangying Kong, Xiaomin Li, Cun Zhang, Liuluan Zhu, Chunfang Liu, Qingxia Qin, Cuiling Liu, Qianqian Wang, Jia Zhu, Xuan Wu, Hongye Wan, Weiheng Chen, Na Lin
Elevated adipogenesis of bone marrow stromal cells (BMSCs) is closely associated with non-traumatic osteonecrosis of femoral head (ONFH). Our previous studies have shown that Huogu (HG) formula was effective both in clinic experience and experimental ONFH. How HG impacts the differentiation of BMSCs and what is the underlying molecular mechanism remain largely unknown. Our results showed that ethyl acetate extract of HG (HGE) significantly decreased the adipocyte differentiation as determined by oil red staining, while slightly increased the ALP activity...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28520465/mesenchymal-stem-stromal-cells-in-regenerative-medicine-past-present-and-future
#3
Ourania Trohatou, Maria G Roubelakis
The concept of Regenerative Medicine combined with Cell based Therapy and Tissue Engineering represents the fourth pillar of healthcare and provides a promising approach for the treatment of serious diseases. Recently, cell based therapies are focused on the use of mesenchymal stem/stromal cells (MSCs). Human MSCs, that represent a mesoderm derived population of progenitors, are easily expanded in culture. They are capable to differentiate into osteoblasts, chondrocytes, and adipocytes and exhibit the potential to repair or regenerate damaged tissues...
May 18, 2017: Cellular Reprogramming
https://www.readbyqxmd.com/read/28500782/melatonin-protects-bone-marrow-mesenchymal-stem-cells-against-iron-overload-induced-osteogenic-differentiation-dysfunction-and-senescence
#4
Fan Yang, Lei Yang, Yuan Li, Gege Yan, Chao Feng, Tianyi Liu, Rui Gong, Ye Yuan, Ning Wang, Elina Idiiatullina, Timur Bikkuzin, Valentin Pavlov, Yang Li, Chaorun Dong, Dawei Wang, Yang Cao, Zhenbo Han, Lai Zhang, Qi Huang, Fengzhi Ding, Zhengang Bi, Benzhi Cai
Bone marrow mesenchymal stem cells (BMSCs) are an expandable population of stem cells which can differentiate into osteoblasts, chondrocytes and adipocytes. Dysfunction of BMSCs in response to pathological stimuli contributes to bone diseases. Melatonin, a hormone secreted from pineal gland, has been proved to be an important mediator in bone formation and mineralization. The aim of this study was to investigate whether melatonin protected against iron overload-induced dysfunction of BMSCs and its underlying mechanisms...
May 13, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/28491279/-mesenchymal-stem-cells-fact-or-fiction-and-implications-in-their-therapeutic-use
#5
REVIEW
Pamela Robey
The concept of a post-natal "mesenchymal stem cell" ("MSC") originated from studies focused on bone marrow stromal cells (BMSCs), which are non-hematopoietic adherent cells, a subset of which are skeletal stem cells (SSCs), able to form cartilage, bone, hematopoiesis-supportive stroma, and marrow adipocytes based on rigorous clonal and differentiation assays. Subsequently, it was speculated that BMSCs could form other mesodermal derivatives and even cell types from other germ layers. Based on BMSC surface markers, representative of fibroblastic cells, and imprecise differentiation assays, it was further imagined that "MSCs" are ubiquitous and equipotent...
2017: F1000Research
https://www.readbyqxmd.com/read/28490813/leptin-receptor-antagonism-of-inkt-cell-function-a-novel-strategy-to-combat-multiple-myeloma
#6
M Favreau, E Menu, D Gaublomme, K Vanderkerken, S Faict, K Maes, E De Bruyne, S Govindarajan, M Drennan, S Van Calenbergh, X Leleu, L Zabeau, J Tavernier, K Venken, D Elewaut
A hallmark of bone marrow changes with aging is the increase in adipocyte composition, but how this impacts development of multiple myeloma (MM) is unknown. Here, we report the role of the adipokine leptin as master regulator of anti-myeloma tumor immunity by modulating the invariant natural killer T (iNKT) cell function. A marked increase in serum leptin levels and leptin receptor (LR) expression on iNKT cells in MM patients and the 5T33 murine MM model was observed. MM cells and leptin synergistically counteracted anti-tumor functionality of both murine and human iNKT cells...
May 11, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28480607/adiponectin-enhances-quiescence-exit-of-murine-hematopoietic-stem-cells-and-hematopoietic-recovery-through-mtorc1-potentiation
#7
Yosuke Masamoto, Shunya Arai, Tomohiko Sato, Naoto Kubota, Iseki Takamoto, Takashi Kadowaki, Mineo Kurokawa
Myelotoxic injury, such as chemotherapeutic agents and ionizing radiation, unlocks the vigorous power of hematopoietic stem cells (HSCs) to replenish the hematopoietic system, making quiescent HSCs enter the cell cycle. Considering that both HSC-intrinsic and -extrinsic mechanisms enforce quiescence of HSCs, the drastic change in bone marrow (BM) environment after injury, represented by massive expansion of BM adipocytes, might trigger HSC activation. BM adipocytes, the major cellular component in the ablated marrow, however, reportedly suppress proliferation of hematopoietic cells, which may indicate the BM adipocytogenesis is an irrational response of injured organism...
May 8, 2017: Stem Cells
https://www.readbyqxmd.com/read/28477013/self-assembling-nanoparticles-encapsulating-zoledronic-acid-inhibit-mesenchymal-stromal-cells-differentiation-migration-and-secretion-of-proangiogenic-factors-and-their-interactions-with-prostate-cancer-cells
#8
Cinzia Borghese, Naike Casagrande, Eliana Pivetta, Alfonso Colombatti, Mariarosaria Boccellino, Ezven Amler, Nicola Normanno, Michele Caraglia, Giuseppe De Rosa, Donatella Aldinucci
Zoledronic Acid (ZA) rapidly concentrates into the bone and reduces skeletal-related events and pain in bone metastatic prostate cancer (PCa), but exerts only a limited or absent impact as anti-cancer activity. Recently, we developed self-assembling nanoparticles (NPS) encapsulating zoledronic acid (NZ) that allowed a higher intratumor delivery of the drug compared with free zoledronic acid (ZA) in in vivo cancer models of PCa. Increasing evidence suggests that Bone Marrow (BM) Mesenchymal stromal cells (BM-MSCs) are recruited into the stroma of developing tumors where they contribute to progression by enhancing tumor growth and metastasis...
April 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28471352/a-chitosan-dextran-based-hydrogel-as-a-delivery-vehicle-of-human-bone-marrow-derived-mesenchymal-stem-cells
#9
Vicky Nelson, Fawzan Dinnunhan, Paul Turner, James Faed, Jaydee Cabral
A chitosan/dextran-based (CD) injectable, surgical hydrogel has been developed and shown to be an effective post-operative aid in prevention of scar tissue formation in vivo. The CD hydrogel's effectiveness in a surgical setting prompted an investigation into its capacity as a potential delivery vehicle for bone marrow derived mesenchymal stem cells (BM-MSCs) for regenerative wound healing applications. By housing BM-MSCs within a biocompatible, injectable, hydrogel matrix, viability and protection in cultivation, as well as direct delivery to the damaged site in the host tissue may be achieved...
May 4, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28469796/low-dose-radiation-modulates-human-mesenchymal-stem-cell-proliferation-through-regulating-cdk-and-rb
#10
Lei Yang, Ziling Liu, Chen Chen, Xiaofeng Cong, Zhi Li, Shasha Zhao, Meng Ren
Low-dose radiation (LDR) has been known to stimulate cell proliferation. The effect of LDR on human bone marrow mesenchymal stem cells (BMSCs), however, remains to be determined. The current study, therefore, aimed to investigate the effect of LDR on human BMSC proliferation and its mechanisms. To accomplish this, human BMSCs were isolated from ribs and cultured with or without exposition to LDR (75 mGy) for 24 h. Cell proliferation was assessed by MTT assay, the cytokines secreted by the BMSCs were quantified by ELISA, and the proteins associated with cell proliferation and cell cycle were evaluated by immunoblot analysis...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28460416/the-skeletal-cell-derived-molecule-sclerostin-drives-bone-marrow-adipogenesis
#11
Heather Fairfield, Carolyne Falank, Elizabeth Harris, Victoria Demambro, Michelle McDonald, Jessica A Pettit, Sindhu T Mohanty, Peter Croucher, Ina Kramer, Michaela Kneissel, Clifford J Rosen, Michaela R Reagan
The bone marrow niche is a dynamic and complex microenvironment that can both regulate, and be regulated by the bone matrix. Within the bone marrow (BM), mesenchymal stromal cell (MSC) precursors reside in a multi-potent state and retain the capacity to differentiate down osteoblastic, adipogenic, or chondrogenic lineages in response to numerous biochemical cues. These signals can be altered in various pathological states including, but not limited to, osteoporotic-induced fracture, systemic adiposity, and the presence of bone-homing cancers...
April 29, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28456746/genetically-engineered-mesenchymal-stromal-cells-producing-il3-and-tpo-to-further-improve-human-scaffold-based-xenograft-models
#12
M Carretta, B de Boer, J Jaques, A Antonelli, S J Horton, H Yuan, J D de Bruijn, R W J Groen, E Vellenga, J J Schuringa
Recently, NOD-SCID IL2Rγ(-/-) (NSG) mice were implanted with human mesenchymal stromal cells (MSCs) in the presence of ceramic scaffolds or matrigel in order to mimic the human bone marrow (BM) microenvironment. This approach allowed the engraftment of leukemic samples that failed to engraft in NSG mice without humanized niches and resulted in a better preservation of leukemic stem cell self-renewal properties [1-3]. To further improve our humanized niche scaffold model, we genetically engineered human MSCs to secrete human IL3 and TPO...
April 26, 2017: Experimental Hematology
https://www.readbyqxmd.com/read/28447748/tenascin-c-expression-and-its-associated-pathway-in-bmscs-following-co-culture-with-mechanically-stretched-ligament-fibroblasts
#13
Bing Zhao, Mengcai Hu, Huiyan Wu, Chenchen Ren, Jianshe Wang, Shihong Cui
The occurrence of pelvic organ prolapse (POP) is closely associated with alterations in the extracellular matrix proteins of the supporting ligament. Bone marrow mesenchymal stem cells (BMSCs) have the potential to differentiate into a variety of cell types, including osteoblasts, chondroblasts and adipocytes. Therefore, BMSCs have the potential to improve the clinical outcomes of POP. Tenascin‑C is a large glycoprotein that is present in the ECM and is involved in morphogenetic movements, and tissue patterning and repair...
May 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28447574/optimized-longitudinal-monitoring-of-stem-cell-grafts-in-mouse-brain-using-a-novel-bioluminescent-near-infrared-fluorescent-fusion-reporter
#14
Laura Mezzanotte, Juvita Delancy Iljas, Ivo Que, Alan Chan, Eric Kaijzel, Rob Hoeben, Clemens Löwik
<p>Biodistribution and fate of transplanted stem cells via longitudinal monitoring has been successfully achievedin the last decade using optical imaging. However, sensitive longitudinal imaging of transplanted stem cells in deep tissue like the brain remains challenging not only due to low light penetration but because of other factors such as low or inferior expression levels of optical reporters in stem cells and stem cell death after transplantation. Here we describe an optimized imaging protocol for sensitive long term monitoring of human bone marrow derived mesenchymal stem cells (hMSCs) expressing a novel bioluminescent/near infrared fluorescent (NIRF) fusion reporter transplanted in mouse brain cortex...
April 26, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28446235/differential-expression-of-cell-cycle-and-wnt-pathway-related-genes-accounts-for-differences-in-the-growth-and-differentiation-potential-of-wharton-s-jelly-and-bone-marrow-derived-mesenchymal-stem-cells
#15
Aristea K Batsali, Charalampos Pontikoglou, Dimitrios Koutroulakis, Konstantia I Pavlaki, Athina Damianaki, Irene Mavroudi, Kalliopi Alpantaki, Elisavet Kouvidi, George Kontakis, Helen A Papadaki
BACKGROUND: In view of the current interest in exploring the clinical use of mesenchymal stem cells (MSCs) from different sources, we performed a side-by-side comparison of the biological properties of MSCs isolated from the Wharton's jelly (WJ), the most abundant MSC source in umbilical cord, with bone marrow (BM)-MSCs, the most extensively studied MSC population. METHODS: MSCs were isolated and expanded from BM aspirates of hematologically healthy donors (n = 18) and from the WJ of full-term neonates (n = 18)...
April 26, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28446012/differentiation-potential-of-mesenchymal-stem-cells-is-related-to-their-intrinsic-mechanical-properties
#16
Ihn Han, Byung-Su Kwon, Hun-Kuk Park, Kyung Sook Kim
PURPOSE: The differentiation properties of stem cells are not yet fully understood due to their close association with multiple environmental and extrinsic factors. This study investigates the differentiation properties of mesenchymal stem cells (MSCs) and correlates them with their intrinsic mechanical properties. METHODS: A total of 3 different types of MSCs, namely bone marrow-derived MSCs (BMSCs), umbilical cord-derived MSCs (UCSCs), and adipose-derived MSCs (ADSCs) were evaluated...
April 2017: International Neurourology Journal
https://www.readbyqxmd.com/read/28445487/bmt-decreases-hfd-induced-weight-gain-associated-with-decreased-preadipocyte-number-and-insulin-secretion
#17
Saeed Katiraei, Lisa R Hoving, Lianne van Beek, Sharida Mohamedhoesein, Françoise Carlotti, Janna A van Diepen, Patrick C N Rensen, Mihai G Netea, Ko Willems van Dijk, Jimmy F P Berbée, Vanessa van Harmelen
Experimental bone marrow transplantation (BMT) in mice is commonly used to assess the role of immune cell-specific genes in various pathophysiological settings. The application of BMT in obesity research is hampered by the significant reduction in high-fat diet (HFD)-induced obesity. We set out to characterize metabolic tissues that may be affected by the BMT procedure and impair the HFD-induced response. Male C57BL/6 mice underwent syngeneic BMT using lethal irradiation. After a recovery period of 8 weeks they were fed a low-fat diet (LFD) or HFD for 16 weeks...
2017: PloS One
https://www.readbyqxmd.com/read/28441086/hematopoietic-to-mesenchymal-transition-of-adipose-tissue-macrophages-is-regulated-by-integrin-%C3%AE-1-and-fabricated-fibrin-matrices
#18
Kathleen M Gavin, Susan M Majka, Wendy M Kohrt, Heidi L Miller, Timothy M Sullivan, Dwight J Klemm
Some bona fide adult adipocytes arise de novo from a bone marrow-derived myeloid lineage. These studies further demonstrate that adipose tissue stroma contains a resident population of myeloid cells capable of adipocyte and multilineage mesenchymal differentiation. These resident myeloid cells lack hematopoietic markers and express mesenchymal and progenitor cell markers. Because bone marrow mesenchymal progenitor cells have not been shown to enter the circulation, we hypothesized that myeloid cells acquire mesenchymal differentiation capacity in adipose tissue...
April 3, 2017: Adipocyte
https://www.readbyqxmd.com/read/28436105/exercise-decreases-marrow-adipose-tissue-through-%C3%A3-oxidation-in-obese-running-mice
#19
Maya Styner, Gabriel M Pagnotti, Cody McGrath, Xin Wu, Buer Sen, Gunes Uzer, Zhihui Xie, Xiaopeng Zong, Martin A Styner, Clinton T Rubin, Janet Rubin
The relationship between marrow adipose tissue (MAT) and bone health is poorly understood. We used running exercise to ask whether obesity-associated MAT can be attenuated via exercise and whether this correlates with gains in bone quantity and quality. C57BL/6 mice were divided into diet-induced obesity (DIO, n = 14) versus low-fat diet (LFD, n = 14). After 3 months, 16-week-old mice were allocated to an exercise intervention (LFD-E, DIO-E) or a control group (LFD, DIO) for 6 weeks (4 groups, n = 7/group)...
April 24, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28432403/bone-marrow-fat-content-in-70-adolescent-girls-with-anorexia-nervosa-magnetic-resonance-imaging-and-magnetic-resonance-spectroscopy-assessment
#20
Kirsten Ecklund, Sridhar Vajapeyam, Robert V Mulkern, Henry A Feldman, Jennifer M O'Donnell, Amy D DiVasta, Catherine M Gordon
BACKGROUND: Adolescents and women with anorexia nervosa have increased bone marrow fat and decreased bone formation, at least in part due to hormonal changes leading to preferential stem cell differentiation to adipocytes over osteoblasts. OBJECTIVE: The purpose of this study was to evaluate marrow fat content and correlate with age and disease severity using knee MRI with T1 relaxometry (T1-R) and MR spectroscopy (MRS) in 70 adolescents with anorexia nervosa. MATERIALS AND METHODS: We enrolled 70 girls with anorexia nervosa who underwent 3-T knee MRI with coronal T1-W images, T1-R and single-voxel proton MRS at 30 and 60 ms TE...
April 22, 2017: Pediatric Radiology
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