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https://www.readbyqxmd.com/read/28533325/physiologic-regulation-of-heart-rate-and-blood-pressure-involves-connexin-36-containing-gap-junctions
#1
Varinder K Lall, Gareth Bruce, Larysa Voytenko, Mark Drinkhill, Kerstin Wellershaus, Klaus Willecke, Jim Deuchars, Susan A Deuchars
Chronically elevated sympathetic nervous activity underlies many cardiovascular diseases. Elucidating the mechanisms contributing to sympathetic nervous system output may reveal new avenues of treatment. The contribution of the gap junctional protein connexin 36 (Cx36) to the regulation of sympathetic activity and thus blood pressure and heart rate was determined using a mouse with specific genetic deletion of Cx36. Ablation of the Cx36 protein was confirmed in sympathetic preganglionic neurons of Cx36 knockout (KO) mice...
May 22, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28533309/aryl-hydrocarbon-receptor-inhibition-promotes-hemato-lymphoid-development-from-human-pluripotent-stem-cells
#2
Mathew G Angelos, Paige N Ruh, Beau R Webber, Robert H Blum, Caitlin D Ryan, Laura Bendzick, Seonhui Shim, Ashley M Yingst, Dejene M Tufa, Michael R Verneris, Dan S Kaufman
The aryl hydrocarbon receptor (AHR) plays an important physiological role in hematopoiesis. AHR is highly expressed in hematopoietic stem/progenitor cells (HSPCs) and inhibition of AHR results in a marked expansion of human umbilical cord blood-derived HSPCs following cytokine stimulation. It is unknown whether AHR also contributes earlier in human hematopoietic development. To model hematopoiesis, human embryonic stem cells (hESCs) were allowed to differentiate in defined conditions in the presence of the AHR antagonist StemReginin-1 (SR-1) or AHR agonist 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD)...
May 22, 2017: Blood
https://www.readbyqxmd.com/read/28532062/polylactide-and-polycaprolactone-based-substrates-enhance-angiogenic-potential-of-human-umbilical-cord-derived-mesenchymal-stem-cells-in-vitro-implications-for-cardiovascular-repair
#3
Małgorzata Sekuła, Patrycja Domalik-Pyzik, Anna Morawska-Chochół, Sylwia Bobis-Wozowicz, Elżbieta Karnas, Sylwia Noga, Dariusz Boruczkowski, Marta Adamiak, Zbigniew Madeja, Jan Chłopek, Ewa K Zuba-Surma
Recent approaches in tissue regeneration focus on combining innovative achievements of stem cell biology and biomaterial sciences to develop novel therapeutic strategies for patients. Growing recent evidence indicates that mesenchymal stem cells harvested from human umbilical cord Wharton's jelly (hUC-MSCs) are a new valuable source of cells for autologous as well as allogeneic therapies in humans. hUC-MSCs are multipotent, highly proliferating cells with prominent immunoregulatory activity. In this study, we evaluated the impact of widely used FDA approved poly(α-esters) including polylactide (PLA) and polycaprolactone (PCL) on selected biological properties of hUC-MSCs in vitro...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531813/immunomodulatory-function-of-whole-human-umbilical-cord-derived-mesenchymal-stem-cells
#4
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/28527810/hif-1%C3%AE-stabilizing-agent-fg-4997-rescues-human-cd34-cell-mobilization-in-response-to-g-csf-in-immuno-deficient-mice
#5
Bianca Nowlan, Katarzyna Futrega, Marion E Brunck, Gail Walkinshaw, Lee E Flippin, Michael R Doran, Jean-Pierre Levesque
Granulocyte colony-stimulating factor (G-CSF) is routinely used in the clinic to mobilize hematopoietic stem progenitor cells (HSPC) into the patient's blood for collection and subsequent transplantation. However a significant proportion of patients who have previously received chemotherapy or radiotherapy and requiring autologous HSPC transplantation, cannot mobilize the minimal threshold of mobilized HSPC to achieve rapid and successful hematopoietic reconstitution. Although several alternatives to the G-CSF regime have been tested, few are in use in the clinic...
May 17, 2017: Experimental Hematology
https://www.readbyqxmd.com/read/28523253/cell-therapy-products-in-alzheimer-disease
#6
REVIEW
Hyeon Jin Song, Tae-Hee Kim, Hae-Hyeog Lee, Jun-Mo Kim, Yoo Jin Park, Arum Lee, Soo Ah Kim, Hye Ji Choi
We are rapidly becoming an aging society, with the ongoing increase in challenges of the elderly. The age-related cognitive decline in accordance with aging society is of major importance in public health. Recent studies have proved the impacts of sex-steroid hormone on the brain; compliant with aging, menopause and decrease in estrogen have an effect on the occurrence and prevention of Alzheimer's disease. A new hypothesis states that Alzheimer's disease is a postmenopausal dementia, and is a negative form of estrogen deficiency...
April 2017: Journal of Menopausal Medicine
https://www.readbyqxmd.com/read/28515450/microfluidic-sorting-of-cells-by-viability-based-on-differences-in-cell-stiffness
#7
Muhymin Islam, Hannah Brink, Syndey Blanche, Caleb DiPrete, Tom Bongiorno, Nicholas Stone, Anna Liu, Anisha Philip, Gonghao Wang, Wilbur Lam, Alexander Alexeev, Edmund K Waller, Todd Sulchek
The enrichment of viable cells is an essential step to obtain effective products for cell therapy. While procedures exist to characterize the viability of cells, most methods to exclude nonviable cells require the use of density gradient centrifugation or antibody-based cell sorting with molecular labels of cell viability. We report a label-free microfluidic technique to separate live and dead cells that exploits differences in cellular stiffness. The device uses a channel with repeated ridges that are diagonal with respect to the direction of cell flow...
May 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28507940/cord-blood-cells-responses-to-il2-il7-and-il15-cytokines-for-mtor-expression
#8
Anahita Mohammadian, Elahe Naderali, Seyedeh Momeneh Mohammadi, Aliakbar Movasaghpour, Behnaz Valipour, Mohammad Nouri, Hojjatollah Nozad Charoudeh
Purpose: Mammalian target of rapamycin (mTOR)is important in hematopoiesis and affect cell growth,differentiation and survival. Although previous studies were identified the effect of cytokines on the mononuclear cells development however the cytokines effect on mTOR in cord blood mononuclear cells was unclear. The aim of this study was to evaluate mTOR expression in cord blood mononuclear and cord blood stem cells (CD34(+) cells) in culture conditions for lymphoid cell development. Methods: Isolation of The mononuclear cells (MNCs) from umbilical cord blood were done with use of Ficollpaque density gradient...
April 2017: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28500728/immunolocalization-of-substance-p-and-nk-1-receptor-in-adipose-stem-cells
#9
Miguel Muñoz, Mario F Muñoz, Antonio Ayala
Substance P (SP) is a neuropeptide belonging to the thachykinin peptide family. SP, after binding to its receptor, the neurokinin 1 receptor (NK1R), controls several transcription factors such as NF-κB, hypoxia inducible factor (HIF-1α), c-myc, c-fos, c-jun and AP-1. SP and NK1R have a widespread distribution in both the central and peripheral nervous systems. They are also present in cells not belonging to the nervous system (immune cells, placenta, etc.). SP is located in all body fluids, i.e., blood, cerebrospinal fluid, etc...
May 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28499936/ucbt-without-antithymocyte-globulin-results-in-similar-survival-but-better-quality-of-life-compared-with-upbsct-for-the-treatment-of-acute-leukemia-a-retrospective-study-in-china
#10
J Tong, L Xuan, Y L Sun, D P Huang, H L Liu, C C Zheng, X Y Zhu, B L Tang, K D Song, X H Zhang, L Zhang, W Yao, D J Lin, Q F Liu, Z M Sun
While previous studies have demonstrated improved outcomes in umbilical cord blood transplantation (UCBT) by omitting antithymocyte globulin (ATG) in the conditioning regimen, this approach has not been comparatively studied in unrelated peripheral blood stem cell transplantation (UPBSCT). To compare the risks and benefits between UCBT without ATG and UPBSCT in patients with acute leukemia (AL). This was a multicenter retrospective study of 79 patients who underwent UCBT (myeloablative conditioning without ATG) and 96 patients who underwent UPBSCT (myeloablative conditioning with ATG)...
May 9, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28499264/initial-clonogenic-potential-of-human-endothelial-progenitor-cells-is-predictive-of-their-further-properties-and-establishes-a-functional-hierarchy-related-to-immaturity
#11
Ségolène Ferratge, Guillaume Ha, Gilles Carpentier, Nassim Arouche, Rümeyza Bascetin, Laurent Muller, Stéphane Germain, Georges Uzan
Endothelial progenitor cells (EPCs) generate in vitro Endothelial Colony Forming Cells (ECFCs) combining features of endothelial and stem/progenitor cells. Their angiogenic properties confer them a therapeutic potential for treating ischemic lesions. They may be isolated from umbilical cord blood (CB-ECFCs) or peripheral adult blood (AB-ECFCs). It is generally accepted that CB-ECFCs are more clonogenic, proliferative and angiogenic than AB-ECFCs. Nevertheless, only a few studies have focused on the functional heterogeneity of CB-ECFCs from different individuals...
April 21, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28495643/humoral-immune-reconstitution-kinetics-following-allogeneic-hematopoietic-stem-cell-transplantation-in-children-a-maturation-block-of-igm-memory-b-cells-may-lead-to-impaired-antibody-immune-reconstitution
#12
Hisham Abdel-Azim, Amro Elshoury, Kris M Mahadeo, Robertson Parkman, Neena Kapoor
Although T cell immune reconstitution following allogeneic hematopoietic stem cell transplantation (allo-HSCT) has been well studied, long-term B cell immune reconstitution remains less characterized. We evaluated humoral immune reconstitution among 71-pediatric allo-HSCT recipients. While tetanus toxoid (TT) antibody levels were normal at 1-year post allo-HSCT, anti-polysaccharide carbohydrate (PRP) antibodies remained persistently low for up to 5-years. While naive B cell counts normalized by 6-months, IgM memory B cell deficiency persisted for up to 2-years (P=0...
May 8, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28495640/sources-of-hematopoietic-stem-and-progenitor-cells-and-methods-to-optimize-yields-for-clinical-cell-therapy
#13
REVIEW
Sandhya R Panch, James Szymanski, Bipin N Savani, David F Stroncek
Bone marrow (BM) aspirates, mobilized peripheral blood (PB) and umbilical cord blood (UCB) have developed as graft sources of hematopoietic stem and progenitor cells (HSPC) for stem cell transplantation and other cellular therapeutics. Individualized techniques are necessary to enhance graft HSPC yields and cell quality from each graft source. BM aspirates yield adequate CD34+cells but can result in relative delays in engraftment. Granulocyte-colony stimulating factor (G-CSF) primed bone marrow HSPC may facilitate faster engraftment while minimizing graft-versus-host disease (GVHD) in certain patient subsets...
May 8, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28484089/xenogeneic-human-umbilical-cord-derived-mesenchymal-stem-cells-reduce-mortality-in-rats-with-acute-respiratory-distress-syndrome-complicated-by-sepsis
#14
Fan-Yen Lee, Kuan-Hung Chen, Christopher Glenn Wallace, Pei-Hsun Sung, Jiunn-Jye Sheu, Sheng-Ying Chung, Yung-Lung Chen, Hung-I Lu, Sheung-Fat Ko, Cheuk-Kwan Sun, Hsin-Ju Chiang, Hsueh-Wen Chang, Mel S Lee, Hon-Kan Yip
This study tested the hypothesis that xenogeneic human umbilical cord-derived mesenchymal stem cell (HUCDMSC) therapy would improve survival rates in rats with acute respiratory distress-syndrome (ARDS, induction by 48 h inhalation of 100% oxygen) and sepsis-syndrome (SS, induction by cecal-ligation and puncture) (ARDS-SS). Adult-male Sprague-Dawley rats were categorized into group 1 (sham-controls), group 2 (ARDS-SS), group 3 [ARDS-SS+HUCDMSC (1.2 x106 cells administered 1 h after SS-induction)], and group 4 [ARDS-SS+HUCDMSC (1...
April 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28482908/curative-or-pre-emptive-adenovirus-specific-t-cell-transfer-from-matched-unrelated-or-third-party-haploidentical-donors-after-hsct-including-ucb-transplantations-a-successful-phase-i-ii-multicenter-clinical-trial
#15
Chongsheng Qian, Arnaud Campidelli, Yingying Wang, Huili Cai, Véronique Venard, Hélène Jeulin, Jean Hugues Dalle, Cécile Pochon, Maud D'aveni, Benedicte Bruno, Catherine Paillard, Stéphane Vigouroux, Charlotte Jubert, Patrice Ceballos, Aude Marie-Cardine, Claire Galambrun, Clément Cholle, Isabelle Clerc Urmes, Nadine Petitpain, Marcelo De Carvalho Bittencourt, Véronique Decot, Loïc Reppel, Alexandra Salmon, Laurence Clement, Danièle Bensoussan
BACKGROUND: Allogeneic hematopoietic stem cell transplantation (HSCT), the most widely used potentially curable cellular immunotherapeutic approach in the treatment of hematological malignancies, is limited by life-threatening complications: graft versus host disease (GVHD) and infections especially viral infections refractory to antiviral drugs. Adoptive transfer of virus-specific T cells is becoming an alternative treatment for infections following HSCT. We report here the results of a phase I/II multicenter study which includes a series of adenovirus-specific T cell (ADV-VST) infusion either from the HSCT donor or from a third party haploidentical donor for patients transplanted with umbilical cord blood (UCB)...
May 8, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28481226/neonatal-expression-of-rna-binding-protein-igf2bp3-regulates-the-human-fetal-adult-megakaryocyte-transition
#16
Kamaleldin E Elagib, Chih-Huan Lu, Goar Mosoyan, Shadi Khalil, Ewelina Zasadzińska, Daniel R Foltz, Peter Balogh, Alejandro A Gru, Deborah A Fuchs, Lisa M Rimsza, Els Verhoeyen, Miriam Sansó, Robert P Fisher, Camelia Iancu-Rubin, Adam N Goldfarb
Hematopoietic transitions that accompany fetal development, such as erythroid globin chain switching, play important roles in normal physiology and disease development. In the megakaryocyte lineage, human fetal progenitors do not execute the adult morphogenesis program of enlargement, polyploidization, and proplatelet formation. Although these defects decline with gestational stage, they remain sufficiently severe at birth to predispose newborns to thrombocytopenia. These defects may also contribute to inferior platelet recovery after cord blood stem cell transplantation and may underlie inefficient platelet production by megakaryocytes derived from pluripotent stem cells...
May 8, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28480300/toward-a-rapid-production-of-multivirus-specific-t-cells-targeting-bkv-adenovirus-cmv-and-ebv-from-umbilical-cord-blood
#17
Hema Dave, Min Luo, J W Blaney, Shabnum Patel, Cecilia Barese, Conrad Russell Cruz, Elizabeth J Shpall, Catherine M Bollard, Patrick J Hanley
Umbilical cord blood (CB) has emerged as an effective alternative donor source for hematopoietic stem cell transplantation. Despite this success, the prolonged duration of immune suppression following CB transplantation and the naiveté of CB T cells leave patients susceptible to viral infections. Adoptive transfer of ex vivo-expanded virus-specific T cells from CB is both feasible and safe. However, the manufacturing process of these cells is complicated, lengthy, and labor-intensive. We have now developed a simplified method to manufacture a single culture of polyclonal multivirus-specific cytotoxic T cells in less than 30 days...
June 16, 2017: Molecular Therapy. Methods & Clinical Development
https://www.readbyqxmd.com/read/28478920/intravenous-infusion-of-adipose-derived-stem-stromal-cells-improves-functional-recovery-of-rats-with-spinal-cord-injury
#18
Yuki Ohta, Akemi Hamaguchi, Masanori Ootaki, Minoru Watanabe, Yuko Takeba, Taroh Iiri, Naoki Matsumoto, Mitsuko Takenaga
BACKGROUND AIMS: Adipose tissue has therapeutic potential for spinal cord injury (SCI) because it contains multipotent cells known as adipose-derived stem/stromal cells (ASCs). In this study, we attempted intravenous ASC transplantation in rats with SCI to examine the effect on functional recovery. METHODS: ASCs (2.5 × 10(6)) were intravenously infused into SCI rats, after which hindlimb motor function was evaluated. Distribution of transplanted ASCs was investigated and growth factor/cytokine levels were determined...
May 3, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28474594/un-manipulated-haploidentical-transplant-in-wiskott-aldrich-syndrome
#19
M Joseph John, Chepsy C Philip, Amrith Mathew, Abhilasha Williams, Naveen Kakkar
BACKGROUND: Allogeneic stem cell transplant is the only curative treatment for Wiskott-Aldrich syndrome. CASE CHARACTERISTICS: 18-months-old boy with no sibling, cord blood or matched unrelated donor transplant options. OUTCOME: Doing well 7 years after haplo-identical stem cell transplantation using unmanipulated bone marrow as the stem cell source. MESSAGE: Father as a haplo-identical donor is a feasible option.
April 15, 2017: Indian Pediatrics
https://www.readbyqxmd.com/read/28474347/optimization-of-cord-blood-unit-sterility-testing-impact-of-dilution-analysis-delay-and-inhibitory-substances
#20
Mélissa Girard, Audrey Laforce-Lavoie, Marie Joëlle de Grandmont, Marie-Pierre Cayer, Diane Fournier, Gilles Delage, Louis Thibault
BACKGROUND: Different methods are used by cord blood banks to prepare samples for sterility testing. Suboptimal methods can result in the release of contaminated products. In our organization, samples are prepared by diluting the final product in RPMI-1640 medium. In this work, we have compared our method with different approaches to verify whether optimization should be sought. STUDY DESIGN AND METHODS: Cord blood units (n = 6 units per bacterial strain) characterized to contain inhibitory substances or not were inoculated (10 colony-forming units/mL) with Streptococcus agalactiae, Staphylococcus epidermidis, Klebsiella pneumoniae, Escherichia coli, or Bacteroides fragilis...
May 4, 2017: Transfusion
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