keyword
MENU ▼
Read by QxMD icon Read
search

Hematopoietic niche

keyword
https://www.readbyqxmd.com/read/29328867/glioma-stem-cell-niches-in-human-glioblastoma-are-periarteriolar
#1
Vashendriya V V Hira, Diana A Aderetti, Cornelis J F van Noorden
Survival of primary brain tumor (glioblastoma) patients is seriously hampered by glioma stem cells (GSCs) that are distinct therapy-resistant self-replicating pluripotent cancer cells. GSCs reside in GSC niches, which are specific protective microenvironments in glioblastoma tumors. We have recently found that GSC niches are hypoxic periarteriolar, whereas in most studies, GSC niches are identified as hypoxic perivascular. The aim of this review is to critically evaluate the literature on perivascular GSC niches to establish whether these are periarteriolar, pericapillary, perivenular, and/or perilymphatic...
January 1, 2018: Journal of Histochemistry and Cytochemistry: Official Journal of the Histochemistry Society
https://www.readbyqxmd.com/read/29321693/human-mesenchymal-stem-cells-lose-their-functional-properties-after-paclitaxel-treatment
#2
Franziska Münz, Ramon Lopez Perez, Thuy Trinh, Sonevisay Sisombath, Klaus-Josef Weber, Patrick Wuchter, Jürgen Debus, Rainer Saffrich, Peter E Huber, Nils H Nicolay
Mesenchymal stem cells (MSCs) are an integral part of the bone marrow niche and aid in the protection, regeneration and proliferation of hematopoietic stem cells after exposure to myelotoxic taxane anti-cancer agents, but the influence of taxane compounds on MSCs themselves remains incompletely understood. Here, we show that bone marrow-derived MSCs are highly sensitive even to low concentrations of the prototypical taxane compound paclitaxel. While MSCs remained metabolically viable, they were strongly impaired regarding both their proliferation and their functional capabilities after exposure to paclitaxel...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29317122/directly-injected-native-bone-marrow-stem-cells-cannot-incorporate-into-acetaminophen-induced-liver-injury
#3
Azadeh Babaei, Azam Katoonizadeh, Azam Ranjbar, Mahmood Naderi, Naser Ahmadbeigi
The paucity of liver donation highlights the use of cell-based strategies for end-stage liver failure. We recently showed that bone marrow-derived aggregates (BMDAs) can completely restore the hematopoietic system in gamma-irradiated mice. These aggregates are stem and progenitor cells in the bone marrow (BM), composed of both hematopoietic and non-hematopoietic lineages. Furthermore, reports showed that resident BM cells migrate to the liver and integrate themselves into the tissue in small numbers. Hence, we hypothesized that direct delivery of BMDAs to the damaged liver might enhance the integration of BM cells in the liver because of its stemness property, intact BM architecture, the physical proximity of these niche-like structures to the damaged sites and the existence of liver paracrine factors...
January 6, 2018: Biologicals: Journal of the International Association of Biological Standardization
https://www.readbyqxmd.com/read/29307583/transcriptionally-and-functionally-distinct-mesenchymal-subpopulations-are-generated-from-human-pluripotent-stem-cells
#4
Chee Jia Chin, Suwen Li, Mirko Corselli, David Casero, Yuhua Zhu, Chong Bin He, Reef Hardy, Bruno Péault, Gay M Crooks
Various mesenchymal cell types have been identified as critical components of the hematopoietic stem/progenitor cell (HSPC) niche. Although several groups have described the generation of mesenchyme from human pluripotent stem cells (hPSCs), the capacity of such cells to support hematopoiesis has not been reported. Here, we demonstrate that distinct mesenchymal subpopulations co-emerge from mesoderm during hPSC differentiation. Despite co-expression of common mesenchymal markers (CD73, CD105, CD90, and PDGFRβ), a subset of cells defined as CD146hiCD73hi expressed genes associated with the HSPC niche and supported the maintenance of functional HSPCs ex vivo, while CD146loCD73lo cells supported differentiation...
January 3, 2018: Stem Cell Reports
https://www.readbyqxmd.com/read/29304342/chewing-through-roots-how-leukemia-invades-and-disrupts-the-bone-marrow-microenvironment
#5
Owen J Tamplin
The bone marrow (BM) niche is a complex microenvironment that supports healthy hematopoietic stem cells (HSCs) throughout life. In this issue of Cell Stem Cell, Duarte et al. (2018) reveal the spatio-temporal progress of leukemic cells as they invade and occupy the niche, ultimately outcompeting native HSCs.
January 4, 2018: Cell Stem Cell
https://www.readbyqxmd.com/read/29297738/periarteriolar-glioblastoma-stem-cell-niches-express-bone-marrow-hematopoietic-stem-cell-niche-proteins
#6
Vashendriya V V Hira, Jill R Wormer, Hala Kakar, Barbara Breznik, Britt van der Swaan, Renske Hulsbos, Wikky Tigchelaar, Zbynek Tonar, Mohammed Khurshed, Remco J Molenaar, Cornelis J F Van Noorden
In glioblastoma, a fraction of malignant cells consists of therapy-resistant glioblastoma stem cells (GSCs) residing in protective niches that recapitulate hematopoietic stem cell (HSC) niches in bone marrow. We have previously shown that HSC niche proteins stromal cell-derived factor-1α (SDF-1α), C-X-C chemokine receptor type 4 (CXCR4), osteopontin (OPN), and cathepsin K (CatK) are expressed in hypoxic GSC niches around arterioles in five human glioblastoma samples. In HSC niches, HSCs are retained by binding of SDF-1α and OPN to their receptors CXCR4 and CD44, respectively...
January 1, 2018: Journal of Histochemistry and Cytochemistry: Official Journal of the Histochemistry Society
https://www.readbyqxmd.com/read/29296920/identification-of-a-murine-cd45-f4-80lo-hsc-derived-marrow-endosteal-cell-associated-with-donor-stem-cell-engraftment
#7
Kathleen M Overholt, Satoru Otsuru, Timothy S Olson, Adam J Guess, Victoria M Velazquez, Laura Desbourdes, Massimo Dominici, Edwin M Horwitz
Hematopoietic stem cells (HSCs) reside in specialized microenvironments within the marrow designated as stem cell niches, which function to support HSCs at homeostasis and promote HSC engraftment after radioablation. We previously identified marrow space remodeling after hematopoietic ablation, including osteoblast thickening, osteoblast proliferation, and megakaryocyte migration to the endosteum, which is critical for effective engraftment of donor HSCs. To further evaluate the impact of hematopoietic cells on marrow remodeling, we used a transgenic mouse model (CD45Cre/iDTR) to selectively deplete hematopoietic cells in situ...
December 26, 2017: Blood Advances
https://www.readbyqxmd.com/read/29296903/osteomacs-interact-with-megakaryocytes-and-osteoblasts-to-regulate-murine-hematopoietic-stem-cell-function
#8
Safa F Mohamad, Linlin Xu, Joydeep Ghosh, Paul J Childress, Irushi Abeysekera, Evan R Himes, Hao Wu, Marta B Alvarez, Korbin M Davis, Alexandra Aguilar-Perez, Jung Min Hong, Angela Bruzzaniti, Melissa A Kacena, Edward F Srour
Networking between hematopoietic stem cells (HSCs) and cells of the hematopoietic niche is critical for stem cell function and maintenance of the stem cell pool. We characterized calvariae-resident osteomacs (OMs) and their interaction with megakaryocytes to sustain HSC function and identified distinguishing properties between OMs and bone marrow (BM)-derived macrophages. OMs, identified as CD45+F4/80+ cells, were easily detectable (3%-5%) in neonatal calvarial cells. Coculture of neonatal calvarial cells with megakaryocytes for 7 days increased OM three- to sixfold, demonstrating that megakaryocytes regulate OM proliferation...
December 12, 2017: Blood Advances
https://www.readbyqxmd.com/read/29290814/dual-targeting-of-acute-leukemia-and-supporting-niche-by-cxcr4-directed-theranostics
#9
Stefan Habringer, Constantin Lapa, Peter Herhaus, Margret Schottelius, Rouzanna Istvanffy, Katja Steiger, Julia Slotta-Huspenina, Andreas Schirbel, Heribert Hänscheid, Stefan Kircher, Andreas K Buck, Katharina Götze, Binje Vick, Irmela Jeremias, Markus Schwaiger, Christian Peschel, Robert Oostendorp, Hans-Jürgen Wester, Götz-Ulrich Grigoleit, Ulrich Keller
C-X-C chemokine receptor 4 (CXCR4) is a transmembrane receptor with pivotal roles in cell homing and hematopoiesis. CXCR4 is also involved in survival, proliferation and dissemination of cancer, including acute lymphoblastic and myeloid leukemia (ALL, AML). Relapsed/refractory ALL and AML are frequently resistant to conventional therapy and novel highly active strategies are urgently needed to overcome resistance. Methods: We used patient-derived (PDX) and cell line-based xenograft mouse models of ALL and AML to evaluate the efficacy and toxicity of a CXCR4-targeted endoradiotherapy (ERT) theranostic approach...
2018: Theranostics
https://www.readbyqxmd.com/read/29288431/thymus-colonization-who-how-how-many
#10
REVIEW
Andreas Krueger
De novo generation of T cells depends on continual colonization of the thymus by bone marrow-derived progenitors. Thymus seeding progenitors (TSPs) constitute a heterogeneous population comprising multipotent and lineage-restricted cell types. Entry into the thymic microenvironment is tightly controlled and recent quantitative studies have revealed that the adult murine thymus only contains approximately 160 niches to accommodate TSPs. Of these niches only about 6% are open for seeding on average at steady-state...
December 29, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/29282309/identification-of-a-multipotent-progenitor-population-in-the-spleen-that-is-regulated-by-nr4a1
#11
Melanie D Mumau, Ashley N Vanderbeck, Elizabeth D Lynch, Sophia B Golec, Stephen G Emerson, Jennifer A Punt
The developmental fate of hematopoietic stem and progenitor cells is influenced by their physiological context. Although most hematopoietic stem and progenitor cells are found in the bone marrow of the adult, some are found in other tissues, including the spleen. The extent to which the fate of stem cells is determined by the tissue in which they reside is not clear. In this study, we identify a new progenitor population, which is enriched in the mouse spleen, defined by cKit+CD71lowCD24high expression. This previously uncharacterized population generates exclusively myeloid lineage cells, including erythrocytes, platelets, monocytes, and neutrophils...
December 27, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29276143/inhibition-of-endosteal-vascular-niche-remodeling-rescues-hematopoietic-stem-cell-loss-in-aml
#12
Delfim Duarte, Edwin D Hawkins, Olufolake Akinduro, Heather Ang, Katia De Filippo, Isabella Y Kong, Myriam Haltalli, Nicola Ruivo, Lenny Straszkowski, Stephin J Vervoort, Catriona McLean, Tom S Weber, Reema Khorshed, Chiara Pirillo, Andrew Wei, Saravana K Ramasamy, Anjali P Kusumbe, Ken Duffy, Ralf H Adams, Louise E Purton, Leo M Carlin, Cristina Lo Celso
Bone marrow vascular niches sustain hematopoietic stem cells (HSCs) and are drastically remodeled in leukemia to support pathological functions. Acute myeloid leukemia (AML) cells produce angiogenic factors, which likely contribute to this remodeling, but anti-angiogenic therapies do not improve AML patient outcomes. Using intravital microscopy, we found that AML progression leads to differential remodeling of vasculature in central and endosteal bone marrow regions. Endosteal AML cells produce pro-inflammatory and anti-angiogenic cytokines and gradually degrade endosteal endothelium, stromal cells, and osteoblastic cells, whereas central marrow remains vascularized and splenic vascular niches expand...
December 6, 2017: Cell Stem Cell
https://www.readbyqxmd.com/read/29247345/bone-marrow-mesenchymal-stem-cells-carrying-fancd2-mutation-differ-from-the-other-fanconi-anemia-complementation-groups-in-terms-of-tgf-%C3%AE-1-production
#13
Ilgin Cagnan, Aysen Gunel-Ozcan, Fatima Aerts-Kaya, Najim Ameziane, Baris Kuskonmaz, Josephine Dorsman, Fatma Gumruk, Duygu Uckan
Transforming growth factor beta (TGF-β) secretion from cells in the bone marrow (BM) niche affects hematopoietic stem cell (HSC) fate and has a cardinal role in HSC quiescence. BM mesenchymal stem cells (BM-MSCs), a component of the BM niche, may produce abnormal levels of TGF-β in Fanconi anemia (FA) and may play a role in bone marrow failure. Here, we molecularly and cellularly characterized FA BM-MSCs by addressing their immunophenotype, proliferation- and differentiation- capacity, reactive oxygen species (ROS) production, senescence activity as well as expression and secretion levels of TGF-β isoforms...
December 15, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/29235199/adaptation-of-the-bone-marrow-stroma-in-hematopoietic-malignancies-current-concepts-and-models
#14
REVIEW
Ben Doron, Mithila Handu, Peter Kurre
The bone marrow stroma maintains hematopoiesis and coordinately regulates regenerative responses through dynamic interactions with hematopoietic stem and progenitor cells. Recent studies indicate that stromal components in the bone marrow of leukemia patients undergo a process of successive adaptation that in turn exerts dramatic effects on the hematopoietic stem cell compartment and promotes leukemic drug resistance. Functional changes in discrete marrow stromal populations can therefore be considered an aspect of leukemia biogenesis in that they create an aberrant, self-reinforcing microenvironment...
December 13, 2017: Stem Cells
https://www.readbyqxmd.com/read/29230885/intercellular-transfer-of-microvesicles-from-young-mesenchymal-stromal-cells-rejuvenates-aged-murine-hematopoietic-stem-cells
#15
Rohan Kulkarni, Manmohan Bajaj, Suprita Ghode, Sapana Jalnapurkar, Lalita Limaye, Vaijayanti Kale
Donor age is one of the major concerns in Bone Marrow Transplantation, as the aged hematopoietic stem cells (HSCs) fail to engraft efficiently. Here, using murine system we show that a brief interaction of aged HSCs with young mesenchymal stromal cells (MSCs) rejuvenates them and restores their functionality via inter-cellular transfer of microvesicles (MVs) containing autophagy-related mRNAs. Importantly, we show that MSCs gain activated AKT signaling as a function of aging. Activated AKT reduces the levels of autophagy-related mRNAs in their MVs, and partitions miR-17 and miR-34a into their exosomes, which upon transfer into HSCs down-regulate their autophagy-inducing mRNAs...
December 12, 2017: Stem Cells
https://www.readbyqxmd.com/read/29222645/role-of-the-microenvironment-in-myeloid-malignancies
#16
REVIEW
Marie Goulard, Christine Dosquet, Dominique Bonnet
The bone marrow microenvironment (BMM) regulates the fate of hematopoietic stem cells (HSCs) in homeostatic and pathologic conditions. In myeloid malignancies, new insights into the role of the BMM and its cellular and molecular actors in the progression of the diseases have started to emerge. In this review, we will focus on describing the major players of the HSC niche and the role of the altered niche function in myeloid malignancies, more specifically focusing on the mesenchymal stroma cell compartment.
December 8, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29218601/regulation-of-myelopoiesis-by-proinflammatory-cytokines-in-infectious-diseases
#17
REVIEW
Yukino Chiba, Izuru Mizoguchi, Hideaki Hasegawa, Mio Ohashi, Naoko Orii, Taro Nagai, Miyaka Sugahara, Yasunori Miyamoto, Mingli Xu, Toshiyuki Owaki, Takayuki Yoshimoto
Hematopoiesis is hierarchically orchestrated by a very small population of hematopoietic stem cells (HSCs) that reside in the bone-marrow niche and are tightly regulated to maintain homeostatic blood production. HSCs are predominantly quiescent, but they enter the cell cycle in response to inflammatory signals evoked by severe systemic infection or injury. Thus, hematopoietic stem and progenitor cells (HSPCs) can be activated by pathogen recognition receptors and proinflammatory cytokines to induce emergency myelopoiesis during infection...
December 7, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/29206311/the-expanding-life-and-functions-of-osteogenic-cells-from-simple-bone-making-cells-to-multifunctional-cells-and-beyond
#18
REVIEW
Pierre J Marie, Martine Cohen-Solal
During the last three decades, important progresses in bone cell biology and in human and mouse genetics led to major advances in our understanding of the life and functions of cells of the osteoblast lineage. Previously unrecognized sources of osteogenic cells have been identified. Novel cellular and molecular mechanisms controlling osteoblast differentiation and senescence have been determined. New mechanisms of communications between osteogenic cells, osteocytes, osteoclasts and chondrocytes, as well as novel links between osteogenic cells and blood vessels have been identified...
December 5, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29204827/leukemia-stem-cells-microenvironment
#19
Yoko Tabe, Marina Konopleva
The dynamic interactions between leukemic cells and bone marrow (BM) cells in the leukemia BM microenvironment regulate leukemia stem cell (LSC) properties including localization, self-renewal, differentiation, and proliferation. Recent research of normal and leukemia BM microenvironments has revealed several key components of specific niches that provide a sanctuary where subpopulations of leukemia cells evade chemotherapy-induced death and acquire a drug-resistant phenotype, as well as the molecular pathways critical for microenvironment/leukemia interactions...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29204826/the-bone-marrow-microenvironment-for-hematopoietic-stem-cells
#20
Daniel Lucas
The main function of the microenvironment in the bone marrow (BM) is to provide signals that regulate and support the production of the billions of blood cells necessary to maintain homeostasis. The best characterized BM microenvironment is the niche that regulates hematopoietic stem cells. Efforts from many different laboratories have revealed that the niche is mainly perivascular and that blood vessels and perivascular stromal cells are the key components. In addition numerous cell types have been shown to be components of the niche...
2017: Advances in Experimental Medicine and Biology
keyword
keyword
17149
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"