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isolation with migration

Cheng Yuan, Xiaoli Gou, Jiang Deng, Zhijun Dong, Peng Ye, Zhenming Hu
BACKGROUNDS: Adipose derived stem cells (ADSCs) could undergo osteogenesis via focal adhesion kinase (FAK) and bone morphogenetic protein (BMP) 9 signals, both of which could affect Wnt-β-catenin signal, a signal pathway closely related to ADSCs osteogenesis. It's still enigma whether FAK and BMP-9 contribute to osteogenesis. Here, we examined the effect of FAK on BMP9-inducedosteogenic differentiation, unveiled the possible molecular mechanism underling this process. METHODS: In the present study, ADSCs were isolated and purified, and cells of passage 3 underwent virus mediated transfection to prepare ADSCs with stable FAK shRNA expression...
June 14, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Christophe Desterke, Rima Slim, Jean-Jacques Candelier
INTRODUCTION: Hydatidiform mole (HM) is an aberrant human pregnancy with abnormal trophoblastic development, migration/invasion of the extravillous trophoblast in the decidua. These abnormalities are established in a hypoxic environment during the first trimester of gestation. METHODS: Using text mining, we identified 72 unique genes that are linked to HM (HM-linked genes) that we studied by bioinformatic analysis in publicly available transcriptomes of primary chorionic villous cells (cytotrophoblast, syncytiotrophoblast, extravillous trophoblast, and arterial and venous endothelial) isolated from normal placentas or established trophoblastic cell lines cultured under different oxygen concentrations...
May 2018: Placenta
Shukui Yu, Zhongxuan Li, Wei Zhang, Zhengde Du, Ke Liu, Denghua Yang, Shusheng Gong
Transplantation of bone marrow-derived endothelial progenitor cells (BM-EPCs) has been used as a therapeutic strategy for vascular repair. However, it remains controversial whether BM-EPCs exhibit clonal endothelial colony-forming cell (ECFC) capacity, a characteristic of true EPCs. The aim of this study was to isolate and explore the cellular properties of BM-ECFCs. We isolated BM-ECFCs from rat bone marrow with high purity via an optimized method. This approach involved the removal of selective colonies based on the conventional differential adhesive culture method used to isolate ECFCs from peripheral and umbilical cord blood...
June 13, 2018: Experimental Cell Research
Xiaodong Guan, Zhiyu Liu, Jianhua Zhang, Xunbo Jin
BACKGROUND: Myeloid-derived suppressor cells (MDSC) play an important role in tumor-mediated immune evasion. Levels of MDSC in peripheral blood are increased in patients with cancer, correlating with cancer stage and outcome. Studies have confirmed the associations between MDSC and various cytokines in the peripheral blood of murine and human cancer hosts. However, little is known about the association between parenchymal MDSC subsets and cytokines, or the mechanism drawing MDSC into tumor parenchyma...
June 15, 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
Yang Li, JianMin Liang, Juan Hu, Xiaoyong Ren, Ying Sheng
Human cholesteatoma perimatrix fibroblasts (hCPFs) can stimulate the endothelial cells of nearby microvessels to proliferate and migrate in a paracrine manner. Exosomes, secreted from various cell types, are one of the most important paracrine factors and play critical roles in intercellular communication. However, whether exosomes derived from human cholesteatoma perimatrix fibroblasts (hCPFs-Exo) can promote angiogenesis has not been reported. In this study, we isolated exosomes secreted by hCPFs and observed that hCPFs-Exo was able to promote migration and tube formation in human umbilical vein endothelial cells (HUVECs)...
June 15, 2018: Cell Biology International
Keke Tan, Xiuxiu Wang, Jun Zhang, Zhigang Zhuang, Tieli Dong
Objective: To investigate the possibility and effect of chitosan porous scaffolds combined with bone marrow mesenchymal stem cells (BMSCs) in repair of neurological deficit after traumatic brain injury (TBI) in rats. Methods: BMSCs were isolated, cultured, and passaged by the method of bone marrow adherent culture. The 3rd generation BMSCs were identified by the CD29 and CD45 surface antigens and marked by 5-bromo-2-deoxyuridine (BrdU). The chitosan porous scaffolds were produced by the method of freeze-drying...
June 1, 2018: Chinese Journal of Reparative and Reconstructive Surgery
Maria I Guillén, Julia Platas, María D Pérez Del Caz, Vicente Mirabet, Maria J Alcaraz
The inflammatory process is an essential phenomenon in the induction of immune responses. Monocytes are key effector cells during the inflammatory process. A wide range of evidence indicates that mesenchymal stem cells from adipose tissue (ASC) are endowed with immunomodulatory capacity. However, the interaction between ASC and monocytes in the innate immune response is not well understood. The aim of this work was to investigate the possible paracrine anti-inflammatory effects of ASC in human monocytes. Monocytes were isolated from buffy coats and ASC from fat of non-obese patients...
2018: Frontiers in Physiology
Shihua Wang, Meiqian Xu, Xiaoxia Li, Xiaodong Su, Xian Xiao, Armand Keating, Robert Chunhua Zhao
BACKGROUND: The initiation and progression of hepatocellular carcinoma (HCC) are largely dependent on its local microenvironment. Adipocytes are an important component of hepatic microenvironment in nonalcoholic fatty liver disease (NAFLD), which is a significant risk factor for HCC. Given the global prevalence of NAFLD, a better understanding of the interplay between HCC cells and adipocytes is urgently needed. Exosomes, released by malignant cells, represent a novel way of cell-cell interaction and have been shown to play an important role in cancer cell communication with their microenvironment...
June 14, 2018: Journal of Hematology & Oncology
L E Wadkin, S Orozco-Fuentes, I Neganova, G Swan, A Laude, M Lako, A Shukurov, N G Parker
We perform a detailed analysis of the migratory motion of human embryonic stem cells in two-dimensions, both when isolated and in close proximity to another cell, recorded with time-lapse microscopic imaging. We show that isolated cells tend to perform an unusual locally anisotropic walk, moving backwards and forwards along a preferred local direction correlated over a timescale of around 50 min and aligned with the axis of the cell elongation. Increasing elongation of the cell shape is associated with increased instantaneous migration speed...
June 13, 2018: Physical Biology
Pinki Nandi, Hyobin Lim, Eloy Jose Torres-Garcia, Peeyush K Lala
The origin and regulation of stem cells sustaining trophoblast renewal in the human placenta remain unclear. Decorin, a leucine-rich proteoglycan restrains trophoblast proliferation, migration/invasiveness and endovascular differentiation, and local decorin overproduction is associated with preeclampsia (PE). Here, we tested the role of decorin in human trophoblast stem cell self-renewal and differentiation, using two models: an immortalized first trimester trophoblast cell line HTR-8/SVneo (HTR) and freshly isolated primary trophoblast (p-trophoblast) from early first trimester (6-9 weeks) placentas...
June 12, 2018: Scientific Reports
Christiane Querfeld, Samantha Leung, Patricia L Myskowski, Shane A Curran, Debra A Goldman, Glenn Heller, Xiwei Wu, Sung Hee Kil, Sneh Sharma, Kathleen J Finn, Steven Horwitz, Alison Moskowitz, Babak Mehrara, Steven T Rosen, Allan C Halpern, James W Young
Cutaneous T-cell lymphoma (CTCL) develops from clonally expanded CD4+ T cells in a background of chronic inflammation. Although dendritic cells (DCs) stimulate T cells and are present in skin, cutaneous T cells in CTCL do not respond with effective antitumor immunity. We evaluated primary T-cell and DC émigrés from epidermal and dermal explant cultures of skin biopsies from CTCL patients (n = 37) and healthy donors (n = 5). Compared with healthy skin, CD4+ CTCL populations contained more T cells expressing PD-1, CTLA-4, and LAG-3...
June 12, 2018: Cancer Immunology Research
Joanna Włodek, Anna Pituch-Noworolska
The extracellular matrix (ECM) is a dynamic environment involved in the regulation of haematopoiesis. A crucial role of this structure is the promotion of proliferation, maturation, and differentiation of haematopoietic stem cells (HSC), and adhesion and migration of HSC in bone marrow. In the present study the effect of ECM proteins (fibronectin, collagens, laminin, thrombospondin, and vitronectin) on proliferation and apoptosis of acute lymphoblastic leukaemia cells isolated from acute lymphoblastic leukaemia (ALL) patients (<i><i><i><i><i>in vitro</i></i></i></i></i>) was assessed...
2018: Polish Journal of Pathology: Official Journal of the Polish Society of Pathologists
Joaquin C B Nunez, Leann M Biancani, Patrick A Flight, Diane E Nacci, David M Rand, Douglas L Crawford, Marjorie F Oleksiak
Populations of the non-migratory estuarine fish Fundulus heteroclitus inhabiting the heavily polluted New Bedford Harbour (NBH) estuary have shown inherited tolerance to local pollutants introduced to their habitats in the past 100 years. Here we examine two questions: (i) Is there pollution-driven selection on the mitochondrial genome across a fine geographical scale? and (ii) What is the pattern of migration among sites spanning a strong pollution gradient? Whole mitochondrial genomes were analysed for 133 F...
May 2018: Royal Society Open Science
Joshua S Brzozowski, Danielle R Bond, Helen Jankowski, Belinda J Goldie, Rachel Burchell, Crystal Naudin, Nathan D Smith, Christopher J Scarlett, Martin R Larsen, Matthew D Dun, Kathryn A Skelding, Judith Weidenhofer
To facilitate intercellular communication, cells release nano-sized, extracellular vesicles (EVs) to transfer biological cargo to both local and distant sites. EVs are enriched in tetraspanins, two of which (CD9 and CD151) have altered expression patterns in many solid tumours, including prostate cancer, as they advance toward metastasis. We aimed to determine whether EVs from prostate cells with altered CD9 and CD151 expression could influence cellular behaviour and increase the metastatic capabilities of non-tumourigenic prostate cells...
June 11, 2018: Scientific Reports
Nicola Heslehurst, Heather Brown, Augustina Pemu, Hayley Coleman, Judith Rankin
BACKGROUND: Global migration is at an all-time high with implications for perinatal health. Migrant women, especially asylum seekers and refugees, represent a particularly vulnerable group. Understanding the impact on the perinatal health of women and offspring is an important prerequisite to improving care and outcomes. The aim of this systematic review was to summarise the current evidence base on perinatal health outcomes and care among women with asylum seeker or refugee status. METHODS: Twelve electronic database, reference list and citation searches (1 January 2007-July 2017) were carried out between June and July 2017...
June 12, 2018: BMC Medicine
Sampa Ghose, Subhrajit Biswas, Kasturi Datta, Rakesh K Tyagi
BACKGROUND: Angiogenesis, the formation of new blood vessels from pre-existing vasculature is essential in a number of physiological processes such as embryonic development, wound healing as well as pathological conditions like, tumor growth and metastasis. Hyaluronic acid (HA), a high molecular weight polysaccharide, major component of extracellular matrix is known to associate with malignant phenotypes in melanomas and various other carcinomas. Hyaluronic acid binding protein 1 (HABP1) has been previously reported to trigger enhanced cellular proliferation in human liver cancer cells upon its over-expression...
June 11, 2018: BMC Cancer
Cynthia L Endrizal, Marie Kainoa Fialkowski, Jim Davis, Sarah Yuan, Rachel Novotny, Treena Wasonti Io Delormier, Beatriz Rodriguez
The Pacific Island region is geographically the most isolated region in the world representing a diverse population of indigenous peoples, migrated groups and new-comers. Rates of chronic disease are predominately high in populations identified as Pacific Islander. The practice of dietetics, defined as nutrition education for the prevention of disease and medical nutrition therapy for the treatment of chronic diseases, proves challenging with the unique cultural diversity in the region. There is a need to describe dietetics practice, populations served, and needs for resources identified by nutrition-related topic and cultural relevance for Registered Dietitian Nutritionists in the Pacific Island region...
June 2018: Hawai'i Journal of Medicine & Public Health: a Journal of Asia Pacific Medicine & Public Health
Namrita S Singh, Judith Bass, Nana Sumbadze, George Rebok, Paul Perrin, Nino Paichadze, W Courtland Robinson
The global population of older adults (60 years and older) has been growing steadily; however, inadequate attention is given to the health needs of older persons, particularly within contexts of conflict and migration. This paper reports findings from the qualitative phase of an investigation assessing the mental health status of older adult internally displaced persons (IDPs) in Georgia, a country in the South Caucasus. The study aimed to assess community-wide social and health problems among older adult IDPs, with a focus on mental health problems and healthy functioning, as well as terminology used to describe these problems...
May 4, 2018: Social Science & Medicine
Rita Romani, Giorgia Manni, Chiara Donati, Irene Pirisinu, Caterina Bernacchioni, Marco Gargaro, Matteo Pirro, Mario Calvitti, Giorgia Manni, Francesco Bagaglia, Amirhossein Sahebkar, Graziano Clerici, Davide Matino, Giovanni Pomili, Gian Carlo Di Renzo, Vincenzo Nicola Talesa, Paolo Puccetti, Francesca Fallarino
Stem cells have high potential for cell therapy in regenerative medicine. We previously isolated stem cell types from human amniotic fluid, derived from prenatal amniocentesis. One type, characterized by a fast doubling time, was designated as fast human amniotic stem cells (fHASCs). These cells exhibited high differentiation potential and immunoregulatory properties. Sphingosine-1-phosphate (S1P) is a bioactive sphingolipid metabolite that influences stem-cell pluripotency, differentiation, mobility, and regulates immune functions...
June 7, 2018: European Journal of Pharmacology
Yong-Li Wang, Guitao Zhang, Hai-Jie Wang, Yu-Zhen Tan, Xin-Yan Wang
BACKGROUND: Preclinical and clinical trails show that c-kit+ cardiac stem cells can differentiate towards cardiovascular cells and improve cardiac function after myocardial infarction (MI). However, survival and differentiation of the engrafted stem cells within ischemic and inflammatory microenvironment are poor. METHODS: c-Kit+ cells were isolated from mesenchymal stem cells (MSCs) of rat bone marrow. Reliability of preinduction with bone morphogenetic protein-2 (BMP-2) in promotion of survival and differentiation of c-kit+ MSCs was assessed in vitro and after transplantation...
August 15, 2018: International Journal of Cardiology
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