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https://www.readbyqxmd.com/read/29137914/orthogonal-potency-analysis-of-mesenchymal-stromal-cell-function-during-ex-vivo-expansion
#1
Danika Khong, Matthew Li, Amy Singleton, Ling-Yee Chin, Shilpaa Munkundan, Biju Parekkadan
Adult bone marrow mesenchymal stromal cells (MSCs) have cross-functional, intrinsic potency that is of therapeutic interest. Their ability to regenerate bone, fat, and cartilage, modulate the immune system, and nurture the growth and function of other bone marrow hematopoietic stem/progenitor cells have all been evaluated by transplant applications of MSCs. These applications require the isolation and expansion scaled cell production. To investigate biophysical properties of MSCs that can be feasibly utilized as predictors of bioactivity during biomanufacturing, we used a low-density seeding model to drive MSCs into proliferative stress and exhibit the hallmark characteristics of in vitro aging...
November 11, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/29136727/-the-459th-case-arthralgia-fever-rash-and-thrombocytopenia
#2
J Z Shen, Y Wang, M Y Fang
The differential diagnoses of reactive arthritis presenting as arthralgia should be considered as diverse disorders, especially when the symptoms cannot be fully explained by some definite diseases. Do not ignore the indication of bone marrow aspiration. We reported a 50-year-old woman who complained of arthralgia, recurrent fever and rash 9 months ago. Laboratory exams showed mild leukopenia, anemia, thrombocytopenia and increased lymphocyte proportion. She was treated with glucocorticoid after the diagnosis of connective tissue disease was suspected...
November 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/29134302/nuclear-organization-during-in-vitro-differentiation-of-porcine-mesenchymal-stem-cells-mscs-into-adipocytes
#3
Joanna Stachecka, Agnieszka Walczak, Beata Kociucka, Błażej Ruszczycki, Grzegorz Wilczyński, Izabela Szczerbal
Differentiation of progenitor cells into adipocytes is accompanied by remarkable changes in cell morphology, cytoskeletal organization, and gene expression profile. Mature adipocytes are filled with a large lipid droplet and the nucleus tends to move to the cell periphery. It was hypothesized that the differentiation process is also associated with changes of nuclear organization. The aim of this study was to determine the number and distribution of selected components of nuclear architecture during porcine in vitro adipogenesis...
November 13, 2017: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/29133977/5-aza-2-deoxycytidine-protects-against-emphysema-in-mice-via-suppressing-p16-ink4a-expression-in-lung-tissue
#4
Zhi-Hui He, Yan Chen, Ping Chen, Sheng-Dong He, Hui-Hui Zeng, Ji-Ru Ye, Da Liu, Jun Cao
Background: There is a growing realization that COPD, or at least emphysema, involves several processes presenting in aging and cellular senescence. Endothelial progenitor cells (EPCs) contribute to neovascularization and play an important role in the development of COPD. The gene for p16(Ink4a) is a major dominant senescence one. The aim of the present study was to observe changes in lung function, histomorphology of lung tissue, and expression of p16(Ink4a) in lung tissue and bone marrow-derived EPCs in emphysematous mice induced by cigarette-smoke extract (CSE), and further to search for a potential candidate agent protecting against emphysema induced by CSE...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29127762/anti-invasive-and-antiproliferative-effects-of-pleurotus-ostreatus-extract-on-acute-leukemia-cell-lines
#5
Alireza Ebrahimi, Amir Atashi, Masoud Soleimani, Maedeh Mashhadikhan, Ahmadreza Barahimi, Amirhossein Maghari
BACKGROUND: Currently, mushrooms have been used in traditional and folk medicines for their therapeutic activities, such as antibiotic, antitumor, anti-inflammatory, anticancer, antileukemic and immunomodulatory actions. This investigation evaluates the anti-invasive, antiproliferative and cytotoxic effects of Pleurotus ostreatus (Pleurotaceae) on leukemia cell lines. METHODS: The proliferation of KG-1 cells was measured by using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay after treatment with gradient dilutions of P...
November 11, 2017: Journal of Basic and Clinical Physiology and Pharmacology
https://www.readbyqxmd.com/read/29117482/zero-echo-time-imaging-of-the-shoulder-enhanced-osseous-detail-by-using-mr-imaging
#6
Ryan E Breighner, Yoshimi Endo, Gabrielle P Konin, Lawrence V Gulotta, Matthew F Koff, Hollis G Potter
Purpose To determine the intermodality agreement of morphologic grading and clinically relevant quantitative measurements between computed tomography (CT) and zero echo time (ZTE) magnetic resonance (MR) imaging of the shoulder. The primary objective was to demonstrate the clinical applicability of ZTE in osseous shoulder imaging. Materials and Methods Thirty-four patients undergoing standard-of-care (SOC) MR imaging with concomitant CT were enrolled in this institutional review board-approved study. ZTE images were acquired after SOC MR imaging...
November 8, 2017: Radiology
https://www.readbyqxmd.com/read/29115623/a-novel-method-to-isolate-mesenchymal-stem-cells-from-mouse-umbilical-cord
#7
Bin Zhang, Jie Zhang, Hui Shi, Fei Mao, Juanjuan Wang, Yongmin Yan, Xu Zhang, Hui Qian, Wenrong Xu
Mesenchymal stem cells (MSCs), derived from various tissues, are considered an ideal cell source for clinical use, among which MSCs from the umbilical cord exhibit advantages over those from adult tissues. In preclinical studies, mouse models and xenogeneic MSC treatment are most commonly used to imitate diseases and clinical practice, respectively. However, the efficiency of cross‑species therapy remains controversial, making it difficult to elucidate the underlying mechanisms. Thus, allogeneic therapy may be more instructive and meaningful in clinical use...
November 3, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29115467/coenzyme-q10-promotes-osteoblast-proliferation-and-differentiation-and-protects-against-ovariectomy-induced-osteoporosis
#8
Delu Zheng, Chenli Cui, Meng Yu, Xiang Li, Lu Wang, Xinyan Chen, Yichen Lin
Coenzyme Q10 (CoQ10) is a fat‑soluble vitamin‑like substance used for the treatment of a variety of disorders, including osteoporosis. The exact mechanism underlying CoQ10‑mediated protection against osteoporosis remains to be elucidated. The present study aimed to evaluate the effect of CoQ10 on osteoblastic cell proliferation and differentiation, and therapeutic effects on a rat model of osteoporosis. Following treatment with different concentrations of CoQ10, cell proliferation and differentiation of rat bone marrow stromal cells (BMSCs), and expression of osteoblastogenic markers, were measured...
October 26, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29114627/second-generation-needling-techniques-for-the-treatment-of-chondral-defects-in-animal-model
#9
Pietro Zedde, Sebastiano Cudoni, Lucia Manunta, Eraldo Sanna Passino, Gerolamo Masala, Antonio Brunetti, Francesco Mattia Uboldi, Andrea Fabio Manunta
Purpose  To compare the macroscopic, histological, and immunohistochemical characteristics of the repair tissue of chondral defects treated with microfracture and nanofracture in an ovine model. Methods  Full-thickness chondral lesions were created in the medial femoral condyle of both knees in four adult sheep and were treated with microfracture on one side and with nanofracture on the contralateral side. Chondral repair was assessed after 12 months by macroscopic, histological, and immunohistochemical analyses...
March 2017: Joints
https://www.readbyqxmd.com/read/29112938/impact-of-baseline-cytogenetic-findings-and-cytogenetic-response-on-outcome-of-high-risk-myelodysplastic-syndromes-and-low-blast-count-aml-treated-with-azacitidine
#10
Marie Sébert, Rami S Komrokji, Mikkael A Sekeres, Thomas Prebet, Thomas Cluzeau, Valeria Santini, Emmanuel Gyan, Alessandro Sanna, Najla HAl Ali, Sean Hobson, Virginie Eclache, Alan List, Pierre Fenaux, Lionel Adès
Karyotype according to the revised IPSS is a strong independent prognostic factor for overall survival (OS) in myelodysplastic syndromes (MDS), however established in untreated patients. The prognostic impact of cytogenetics and cytogenetic response (CyR) in MDS patients receiving azacitidine (AZA) remains uncertain. We examined the prognostic value of baseline cytogenetics and CyR for overall response rate (ORR) and OS in 702 AZA-treated higher risk MDS and low blast count acute myeloid leukemia (AML), including 493 (70%) with abnormal karyotype...
October 27, 2017: Leukemia Research
https://www.readbyqxmd.com/read/29112016/b-lymphoblastic-leukemia-lymphoma-with-burkitt-like-morphology-and-igh-myc-rearrangement-report-of-3-cases-in-adult-patients
#11
Yiting Li, Gunjan Gupta, Ari Molofsky, Yi Xie, Nader Shihabi, Jane McCormick, Elaine S Jaffe
Isolated MYC rearrangement without other recurrent genetic abnormalities is rare in B lymphoblastic leukemia/lymphoma (B-ALL/LBL), with most cases reported in pediatric patients. We report 3 adult cases with lymphoblasts showing a precursor B cell immunophenotype, and isolated MYC/IGH translocation. All 3 cases occurred in male patients with initial presentation of diffuse lymphadenopathy. Cases 1 and 2 had B-ALL with significantly increased lymphoblasts in peripheral blood and bone marrow. Case 3, a patient with human immunodeficiency virus infection, had the diagnosis of B-LBL made on a retroperitoneal lymph node biopsy and had no peripheral blood or bone marrow involvement...
November 3, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29109103/hepatocyte-nuclear-factor-1a-deficiency-causes-hemolytic-anemia-in-mice-by-altering-erythrocyte-sphingolipid-homeostasis
#12
Karin von Wnuck Lipinski, Sarah Weske, Petra Keul, Susann Peters, Hideo A Baba, Gerd Heusch, Markus H Gräler, Bodo Levkau
The Hepatocyte Nuclear Factor (HNF) family regulates complex networks of metabolism and organ development. Human mutations in its prototypical member HNF1A cause maturity-onset of diabetes of the young (MODY) type 3. In this study, we identified an important role for HNF1A in the preservation of erythrocyte membrane integrity, calcium homeostasis and osmotic resistance through a yet unrecognized link of HNF1A to sphingolipid homeostasis. HNF1A(-/-) mice displayed microcytic hypochromic anemia with reticulocytosis that was partially compensated by avid extramedullary erythropoiesis at all erythroid stages in the spleen thereby excluding erythroid differentiation defects...
November 6, 2017: Blood
https://www.readbyqxmd.com/read/29105637/detection-of-ad-bmp-2-ires-hif-1%C3%AE-mu-on-local-promoting-angiogenic-and-osteogenic-capacity-of-necrosis-area
#13
Fuai Cui, Xiuli Wang, Wei Wang, Peng Xiao, Yuan Ma, Lindong Jiang
The induced EPCs were transfected by Ad-BMP-2-IRES-HIF-1αmu, and then transplanted into femoral head necrotic zone, the effect on osteogenesis and agiogenesis of necrosis zone was detected. The Ad-BMP-2-IRES-HIF-1α was transfected into induced EPCs and then transplanted into avascular necrotic parts of the femoral head (ANFH).Afterwards, the promotion effect on angiogenic and osteogenic capabilities of the necrosis parts from Ad-BMP-2-IRES-HIF-1α was detected. Rabbit bone marrow MNCs were obtained by density gradient centrifugation method, and were induced into EPCs by M199 medium; EPCs were identified in accordance with the cell morphology, specific surface markers and uptake abilities...
September 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29105086/dose-dependent-effect-of-triiodothyronine-on-the-chondrogenic-differentiation-of-mesenchymal-stem-cells-from-the-bone-marrow-of-female-rats
#14
Higor A Assis, Nathalia C Elert, André Luiz B P Azevedo, Iolanda S Braga, Rogéria Serakides, Natália de Melo Ocarino, Alfredo M de Goes, Francisco de Paula Careta, Greiciane G Paneto, Adriana M A da Silva, Jankerle N Boeloni
OBJECTIVES: Verify the in-vitro effect of triiodothyronine (T3) on the chondrogenic differentiation of female rat bone marrow mesenchymal stem cells (BMMSCs) over several time periods and at several doses. METHODS: CD54 + /CD73 + /CD90 +  BMMSCs from Wistar female rats were cultured in chondrogenic medium with or without T3 (0.01; 1; 100; 1000 nm). At seven, 14 and 21 days, the cell morphology, chondrogenic matrix formation and expression of Sox9 and collagen II were evaluated...
November 3, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/29104482/human-cartilage-engineering-in-an-in-vitro-repair-model-using-collagen-scaffolds-and-mesenchymal-stromal-cells
#15
Clara Sanjurjo-Rodríguez, Rocío Castro-Viñuelas, Tamara Hermida-Gómez, Isaac Manuel Fuentes-Boquete, Francisco Javier de Toro, Francisco Javier Blanco, Silvia María Díaz-Prado
The purpose of this study was to investigate cartilage repair of in vitro lesion models using human bone marrow mesenchymal stromal cells (hBMSCs) with different collagen (Col) scaffolds. Lesions were made in human cartilage biopsies. Injured samples were pre-treated with interleukin 1β (IL1β) for 24 h; also, samples were not pre-treated. hBMSCs were seeded on different types of collagen scaffolds. The resulting constructs were placed into the lesions, and the biopsies were cultured for 2 months in chondrogenic medium...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/29101872/evaluation-of-the-bisphosphonate-effect-on-stem-cells-derived-from-jaw-bone-and-long-bone-rabbit-models-a-pilot-study
#16
Jun-Beom Park, Seung-Hyun Cho, InSoo Kim, Won Lee, Seung-Hwan Kang, Heesung Kim
BACKGROUND AND OBJECTIVE: Bisphosphonates have been widely used and the number of patients experiencing medication-related osteonecrosis of the jaw (MRONJ) has been increasing. This study was designed to evaluate the effect of zoledronate on stem cells derived from different tissues. DESIGN: Stem cells derived from four different tissues were compared using rabbit models (JPO: periosteum from the jaw bone (mandible), JBM: bone marrow from the jaw bone, LPO: periosteum from long bone (tibia), and LBM: bone marrow from long bone)...
October 31, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/29100399/oxidative-stress-induced-jnk-ap-1-signaling-is-a-major-pathway-involved-in-selective-apoptosis-of-myelodysplastic-syndrome-cells-by-withaferin-a
#17
Karine Z Oben, Sara S Alhakeem, Mary K McKenna, Jason A Brandon, Rajeswaran Mani, Sunil K Noothi, Liu Jinpeng, Shailaja Akunuru, Sanjit K Dhar, Inder P Singh, Ying Liang, Chi Wang, Ahmed Abdel-Latif, Harold F Stills, Daret K St Clair, Hartmut Geiger, Natarajan Muthusamy, Kaoru Tohyama, Ramesh C Gupta, Subbarao Bondada
Myelodysplastic syndromes (MDS) are a diverse group of malignant clonal hematopoietic stem cell disorders characterized by ineffective hematopoiesis, dysplastic cell morphology in one or more hematopoietic lineages, and a risk of progression to acute myeloid leukemia (AML). Approximately 50% of MDS patients respond to current FDA-approved drug therapies but a majority of responders relapse within 2-3 years. There is therefore a compelling need to identify potential new therapies for MDS treatment. We utilized the MDS-L cell line to investigate the anticancer potential and mechanisms of action of a plant-derived compound, Withaferin A (WFA), in MDS...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29097870/adipose-derived-stromal-cells-resemble-bone-marrow-stromal-cells-in-hepatocyte-differentiation-potential-in-vitro-and-in-vivo
#18
Li-Juan Xu, Shu-Fang Wang, De-Qing Wang, Lian-Jun Ma, Zheng Chen, Qian-Qian Chen, Jun Wang, Li Yan
AIM: To investigate whether mesenchymal stem cells (MSCs) from adipose-derived stromal cells (ADSCs) and bone marrow stromal cells (BMSCs) have similar hepatic differentiation potential. METHODS: Mouse ADSCs and BMSCs were isolated and cultured. Their morphological and phenotypic characteristics, as well as their multiple differentiation capacity were compared. A new culture system was established to induce ADSCs and BMSCs into functional hepatocytes. Reverse transcription polymerase chain reaction, Western blot, and immunofluorescence analyses were performed to identify the induced hepatocyte-like cells...
October 14, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29095674/bone-marrow-metastases-t2-weighted-dixon-spin-echo-fat-images-can-replace-t1-weighted-spin-echo-images
#19
Yaël Maeder, Vincent Dunet, Raphael Richard, Fabio Becce, Patrick Omoumi
Purpose To test the potential of Dixon T2-weighted fat-only sequences to replace T1-weighted sequences for the detection of bone metastases, with the hypothesis that diagnostic performance with an alternative magnetic resonance (MR) imaging protocol (sagittal spin-echo Dixon T2-weighted fat-only and water-only imaging) would not be inferior to that with the standard protocol (sagittal spin-echo T1-weighted and spin-echo Dixon T2-weighted water-only imaging). Materials and Methods A total of 121 consecutive whole-spine MR imaging examinations (63 men; mean age ± standard deviation, 61...
November 2, 2017: Radiology
https://www.readbyqxmd.com/read/29091604/the-role-of-bone-marrow-morphology-in-the-diagnosis-of-relapsed-acute-myeloid-leukemia
#20
B Said, S Gilles, D Weisdorf, A Rashidi
No abstract text is available yet for this article.
October 31, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
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