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Paracrine effect

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https://www.readbyqxmd.com/read/29352743/co-transplantation-of-adipose-tissue-derived-stromal-cells-and-olfactory-ensheathing-cells-for-spinal-cord-injury-repair
#1
Eduardo D Gomes, Sofia S Mendes, Rita C Assunção-Silva, Fábio G Teixeira, Ana O Pires, Sandra I Anjo, Bruno Manadas, Hugo Leite-Almeida, Jeffrey M Gimble, Nuno Sousa, Angelo C Lepore, Nuno A Silva, António J Salgado
Patients suffering from Spinal Cord Injury (SCI) still have a dismal prognosis. Despite all the efforts developed in this area, currently there are no effective treatments. Therefore, cell therapies have been proposed as a viable alternative to the current treatments employed. Adipose tissue-derived Stem Cells (ASCs) and Olfactory Ensheathing Cells (OECs) have been used with promising results in different models of SCI, namely due to the regenerative properties of the secretome of the first, and the guidance capability of the second...
January 20, 2018: Stem Cells
https://www.readbyqxmd.com/read/29352190/autophagy-promotes-msc-mediated-vascularization-in-cutaneous-wound-healing-via-regulation-of-vegf-secretion
#2
Y An, W J Liu, P Xue, Y Ma, L Q Zhang, B Zhu, M Qi, L Y Li, Y J Zhang, Q T Wang, Y Jin
Vascularization deficiency caused a lot of diseases, such as diabetes ulcer and myocardial infarction. Mesenchymal stem cells (MSCs), with the self-renewal and multipotent differentiation capacities, have been used for many diseases treatment through regulation microenvironment. Numerous studies reported that MSCs transplantation could largely improve cutaneous wound healing via paracrine secretion of growth factors. However, whether MSCs take part in the angiogenesis process directly remains elusive. Previous study proved that autophagy inhibited immunosuppressive function of MSCs and prevented the degradation of MSCs function in inflammatory and senescent microenvironment...
January 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29347847/combining-cell-and-gene-therapy-to-advance-cardiac-regeneration
#3
Pina Marotta, Eleonora Cianflone, Iolanda Aquila, Carla Vicinanza, Mariangela Scalise, Fabiola Marino, Teresa Mancuso, Michele Torella, Ciro Indolfi, Daniele Torella
The characterization of multipotent endogenous cardiac stem cells (eCSCs) and the breakthroughs of somatic cell reprogramming to boost cardiomyocyte replacement have fostered the prospect of achieving functional heart repair/regeneration. Areas covered: Allogeneic CSC therapy through its paracrine stimulation of the endogenous resident reparative/regenerative process produces functional meaningful myocardial regeneration in pre-clinical porcine myocardial infarction models and is currently tested in the first-in-man human trial...
January 19, 2018: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/29345349/enhanced-phosphorylation-of-sphingosine-and-ceramide-sustains-the-exuberant-proliferation-of-endothelial-progenitors-in-kaposi-sarcoma
#4
Loubna Abdel Hadi, Francesca Calcaterra, Lucia Brambilla, Claudia Carenza, Giovanni Marfia, Silvia Della Bella, Laura Riboni
Endothelial colony-forming cells (ECFCs), a unique endothelial stem cell population, are highly increased in the blood of Kaposi sarcoma (KS) patients. KS-derived ECFCs (KS-ECFCs) are also endowed with increased proliferative and vasculogenic potential, thus suggesting that they may be precursors of KS spindle cells. However, the mechanisms underlying the increased proliferative activity of KS-ECFCs remain poorly understood. Sphingosine-1-phosphate (S1P) and ceramide-1-phosphate (C1P) are metabolically interconnected sphingoid mediators crucial to cell proliferation...
December 15, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29345324/autocrine-signals-increase-ovine-mesenchymal-stem-cells-migration-through-aquaporin-1-and-cxcr4-overexpression
#5
Alessandra Pelagalli, Anna Nardelli, Enrico Lucarelli, Antonella Zannetti, Arturo Brunetti
Sheep is a relevant large animal model that is frequently used to test innovative tissue engineering (TE) approaches especially for bone reconstruction. Mesenchymal stem cells (MSCs) are used in TE applications because they represent key component of adult tissue repair. Importantly, MSCs from different species show similar characteristics, which facilitated their application in translational studies using animal models. Nowadays, many researches are focusing on the use of ovine mesenchymal stem cells (oMSCs) in orthopedic preclinical settings for regenerative medicine purposes...
January 18, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29344793/the-role-of-bone-secreted-factors-in-burn-induced-muscle-cachexia
#6
REVIEW
Gordon L Klein
PURPOSE OF REVIEW: Burn injury results in resorptive bone loss, failure to make new bone, and muscle protein breakdown resulting in cachexia. The purpose of this review is to examine the relationship between bone loss and muscle atrophy in burn injury with a view to understanding the process at work and how it may apply to other conditions that have similar features. RECENT FINDINGS: We present data suggesting that the use of bisphosphonates in the first 10 days following the burn prevents not only the resorptive bone loss but also the muscle wasting...
January 17, 2018: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/29343714/endothelial-nitric-oxide-synthase-overexpressing-human-early-outgrowth-cells-inhibit-coronary-artery-smooth-muscle-cell-migration-through-paracrine-functions
#7
Sergio Guber, Talin Ebrahimian, Maryam Heidari, Nicoletta Eliopoulos, Stephanie Lehoux
Cells mobilized from the bone marrow can contribute to endothelial regeneration and repair. Nevertheless, cardiovascular diseases are associated with diminished numbers and function of these cells, attenuating their healing potential. Gene transfer of endothelial nitric oxide synthase (eNOS) can restore the activity of circulating cells. Furthermore, estrogen accelerates the reendothelialization capacity of early outgrowth cells (EOCs). We hypothesized that overexpressing eNOS alone or in combination with estrogen stimulation in EOCs would potentiate the beneficial effects of these cells in regulating smooth muscle cell (SMC) function...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29343306/nasal-changes-associated-with-exercise-in-athletes-systematic-review
#8
P Surda, A Walker, J Limpens, W Fokkens, M Putala
BACKGROUND: The prevalence of rhinitis in athletes has frequently been studied in combination with asthma, but the impact of exercise on the paracrine and secretory functions of nasal mucosa is less well established. This systematic review aimed to examine the effect of exercise on nasal mucosa in elite athletes. METHOD: A systematic search of Medline, Embase and the non-Medline subset of PubMed, from inception to 8th March 2016, was performed to identify studies on rhinitis in athletes...
January 18, 2018: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/29342064/minimally-manipulated-bone-marrow-concentrate-compared-with-microfracture-treatment-of-full-thickness-chondral-defects-a-one-year-study-in-an-equine-model
#9
Constance R Chu, Lisa A Fortier, Ashley Williams, Karin A Payne, Taralyn M McCarrel, Megan E Bowers, Diego Jaramillo
BACKGROUND: Microfracture is commonly performed for cartilage repair but usually results in fibrocartilage. Microfracture augmented by autologous bone marrow concentrate (BMC) was previously shown to yield structurally superior cartilage repairs in an equine model compared with microfracture alone. The current study was performed to test the hypothesis that autologous BMC without concomitant microfracture improves cartilage repair compared with microfracture alone. METHODS: Autologous sternal bone marrow aspirate (BMA) was concentrated using a commercial system...
January 17, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29341932/synthetic-extracellular-matrix-mimic-hydrogel-improves-efficacy-of-mesenchymal-stromal-cell-therapy-for-ischemic-cardiomyopathy
#10
Maria Chiara Ciuffreda, Giuseppe Malpasso, Cindy Chokoza, Deon Bezuidenhout, Kyle P Goetsch, Manuela Mura, Federica Pisano, Neil H Davies, Massimiliano Gnecchi
BACKGROUND: Mesenchymal stromal cells (MSC) repair infarcted hearts mainly through paracrine mechanisms. Low cell engraftment limits the release of soluble paracrine factors (SF) over time and, consequently, MSC efficacy. We tested whether a synthetic extracellular matrix mimic, a hydrogel containing heparin (H-HG), could ameliorate MSC engraftment and binding/release of SF, thus improving MSC therapy efficacy. METHODS AND RESULTS: In vitro, rat bone-marrow MSC (rBM-MSC) were seeded and grown into H-HG...
January 13, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29341889/adventitial-activation-in-the-pathogenesis-of-injury-induced-arterial-remodeling-potential-implications-in-transplant-vasculopathy
#11
REVIEW
Jianli Wang, Yuan Wang, Jingjing Wang, Xiaosun Guo, Elsa C Chan, Fan Jiang
Transplant vasculopathy is one of the major causes of chronic rejection following solid organ transplantation. The pathogenic mechanisms of transplant vasculopathy are still poorly understood. Here we summarize current evidence suggesting that activation of the tunica adventitia may be involved in the pathogenesis of transplant vasculopathy. Adventitia is an early responder to various vascular injuries and plays an integral role in eliciting vascular inflammation and remodeling. Accumulation of macrophages in the adventitia promotes the development of vascular remodeling by releasing a variety of paracrine factors that have profound impacts on vascular mural cells...
January 13, 2018: American Journal of Pathology
https://www.readbyqxmd.com/read/29341292/amniotic-fluid-stem-cell-exosomes-therapeutic-perspective
#12
Francesca Beretti, Manuela Zavatti, Francesca Casciaro, Giuseppina Comitini, Fabrizia Franchi, Veronica Barbieri, Giovanni B La Sala, Tullia Maraldi
It is widely accepted that the therapeutic potential of stem cells can be largely mediated by paracrine factors, also included into exosomes. Thus, stem cell-derived exosomes represent a major therapeutic option in regenerative medicine avoiding, if compared to stem cells graft, abnormal differentiation and tumor formation. Exosomes derived from mesenchymal stem cells (MSC) induce damaged tissue repair, and can also exert immunomodulatory effects on the differentiation, activation and function of different lymphocytes...
January 16, 2018: BioFactors
https://www.readbyqxmd.com/read/29340222/direct-molecular-fishing-of-new-protein-partners-for-human-thromboxane-synthase
#13
A V Svirid, P V Ershov, E O Yablokov, L A Kaluzhskiy, Yu V Mezentsev, A V Florinskaya, T A Sushko, N V Strushkevich, A A Gilep, S A Usanov, A E Medvedev, A S Ivanov
Thromboxane synthase (TBXAS1) catalyzes the isomerization reaction of prostaglandin H2 producing thromboxane A2, the autocrine and paracrine factor in many cell types. A high activity and metastability by these arachidonic acid derivatives suggests the existence of supramolecular structures that are involved in the regulation of the biosynthesis and directed translocation of thromboxane to the receptor. The objective of this study was to identify TBXAS1 protein partners from human liver tissue lysate using a complex approach based on the direct molecular fishing technique, LC-MS/MS protein identification, and protein-protein interaction validation by surface plasmon resonance (SPR)...
October 2017: Acta Naturae
https://www.readbyqxmd.com/read/29339666/preventive-cold-acclimation-augments-the-reparative-function-of-endothelial-progenitor-cells-in-mice
#14
Cheng Peng, Li-Ping Wang, Xia Tao, Xiao-Hui Dong, Chun-Fang Xu, Yu Jiang, Chun-Long Liu, Hui-Fang Ma, Chuan Zhang, Alex F Chen, He-Hui Xie
BACKGROUND/AIMS: Chronic cold exposure may increase energy expenditure and contribute to counteracting obesity, an important risk factor for cerebrocardiovascular diseases. This study sought to evaluate whether preventive cold acclimation before ischemia onset might be a promising option for preventing cerebral ischemic injury. METHODS: After a 14-day cold acclimation period, young and aged mice were subjected to permanent cerebral ischemia, and histological analyses and behavioral tests were performed...
January 15, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29337123/mesenchymal-stem-cell-based-therapy-improves-lower-limb-movement-after-spinal-cord-ischemia-in-rats
#15
Shinya Takahashi, Kei Nakagawa, Mayumi Tomiyasu, Ayumu Nakashima, Keijiro Katayama, Takeshi Imura, Bagus Herlambang, Fumie Okubo, Koji Arihiro, Yumi Kawahara, Louis Yuge, Taijiro Sueda
BACKGROUND: Spinal cord ischemia is a devastating complication following thoracic and thoracoabdominal aortic surgery. In this study, we aimed to investigate the effects of mesenchymal stem cells (MSCs), which have regenerative capability and exert paracrine actions on damaged tissues, injected into rat models of spinal cord ischemia-reperfusion injury. METHODS: Forty-five Sprague-Dawley rats were divided into sham, phosphate-buffered saline (PBS), and MSC groups...
January 11, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29330929/adipocytes-affect-castration-resistant-prostate-cancer-cells-to-develop-the-resistance-to-cytotoxic-action-of-nk-cells-with-alterations-of-pd-l1-nkg2d-ligand-levels-in-tumor-cells
#16
Lijun Xu, Mingjing Shen, Xiaodong Chen, Rongying Zhu, Dong-Rong Yang, Ying Tsai, Peter C Keng, Yuhchyau Chen, Soo Ok Lee
BACKGROUND: Obesity affects prostate cancer (PCa) progression, and the periprostatic adipose tissue adjacent to the prostate is considered a driving force of disease progression. Adipocytes are the main cell population in adipose tissues and their paracrine role contributes to PCa progression, however its implication in modulating immune reactions remains largely unknown. We investigated the adipocyte role in controlling the susceptibility of castration-resistant PCa (CRPC) cells to the cytotoxic action of natural killer (NK) cells...
January 12, 2018: Prostate
https://www.readbyqxmd.com/read/29328364/genetically%C3%A2-modified-stem-cells-in-treatment-of-human-diseases-tissue-kallikrein-klk1-%C3%A2-based-targeted-therapy-review
#17
Marina Devetzi, Maria Goulielmaki, Nicolas Khoury, Demetrios A Spandidos, Georgia Sotiropoulou, Ioannis Christodoulou, Vassilis Zoumpourlis
The tissue kallikrein‑kinin system (KKS) is an endogenous multiprotein metabolic cascade which is implicated in the homeostasis of the cardiovascular, renal and central nervous system. Human tissue kallikrein (KLK1) is a serine protease, component of the KKS that has been demonstrated to exert pleiotropic beneficial effects in protection from tissue injury through its anti‑inflammatory, anti‑apoptotic, anti‑fibrotic and anti‑oxidative actions. Mesenchymal stem cells (MSCs) or endothelial progenitor cells (EPCs) constitute populations of well‑characterized, readily obtainable multipotent cells with special immunomodulatory, migratory and paracrine properties rendering them appealing potential therapeutics in experimental animal models of various diseases...
January 3, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29327677/autologous-smooth-muscle-progenitor-cells-enhance-regeneration-of-tissue-engineered-bladder
#18
Liuhua Zhou, Jiadong Xia, Pengji Wang, Ruipeng Jia, Jun Hua Zheng, Xudong Yao, Yun Chen, Yutian Dai, Bin Yang
Tissue engineering techniques provide a great potential to de novo construct a histological bladder. Smooth muscle regeneration is extremely important for the functional recovery of engineered neo-bladder. However, many challenges remain for the use of bladder smooth muscle cells (SMCs) as the cell sources. Recent evidences showed that smooth muscle progenitor cells (SPCs) in the peripheral blood have the capacity of differentiating into SMCs, while their use for bladder regeneration hasn't yet been reported...
January 12, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29323194/human-mesenchymal-stromal-cell-derived-extracellular-vesicles-modify-microglial-response-and-improve-clinical-outcomes-in-experimental-spinal-cord-injury
#19
Katherine A Ruppert, Tin T Nguyen, Karthik S Prabhakara, Naama E Toledano Furman, Amit K Srivastava, Matthew T Harting, Charles S Cox, Scott D Olson
No current clinical intervention can alter the course of acute spinal cord injury (SCI), or appreciably improve neurological outcome. Mesenchymal stromal cells (MSCs) have been shown to modulate the injury sequelae of SCI largely via paracrine effects, although the mechanisms remain incompletely understood. One potential modality is through secretion of extracellular vesicles (EVs). In this study, we investigate whether systemic administration of EVs isolated from human MSCs (MSCEv) has the potential to be efficacious as an alternative to cell-based therapy for SCI...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29321508/thrombospondin-1-secreted-by-human-umbilical-cord-blood-derived-mesenchymal-stem-cells-rescues-neurons-from-synaptic-dysfunction-in-alzheimer-s-disease-model
#20
Dong Hyun Kim, Hoon Lim, Dahm Lee, Soo Jin Choi, Wonil Oh, Yoon Sun Yang, Jeong Su Oh, Hyun Ho Hwang, Hong Bae Jeon
Alzheimer's disease (AD) is an incurable neurodegenerative disease characterised clinically by learning and memory impairments. Amyloid beta (Aβ) peptide-induced synaptic dysfunction is a pathological process associated with early-stage AD. Here, we show that paracrine action of human umbilical cord blood-derived-mesenchymal stem cells (hUCB-MSCs) protects the hippocampus from synaptic-density loss in in vitro and in vivo AD models. To identify paracrine factors underlying this rescue effect, we analysed hUCB-MSCs' secretome co-cultured with Aβ42-treated mouse hippocampal neurons...
January 10, 2018: Scientific Reports
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