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stem cell stromal

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https://www.readbyqxmd.com/read/29036224/immortalized-porcine-mesenchymal-cells-derived-from-nasal-mucosa-lungs-lymph-nodes-spleen-and-bone-marrow-retain-their-stemness-properties-and-trigger-the-expression-of-siglec-1-in-co-cultured-blood-monocytic-cells
#1
Abubakar Garba, Lowiese M B Desmarets, Delphine D Acar, Bert Devriendt, Hans J Nauwynck
Mesenchymal stromal cells have been isolated from different sources. They are multipotent cells capable of differentiating into many different cell types, including osteocytes, chondrocytes and adipocytes. They possess a therapeutic potential in the management of immune disorders and the repair of damaged tissues. Previous work in our laboratory showed an increase of the percentages of CD172a+, CD14+, CD163+, Siglec-1+, CD4+ and CD8+ hematopoietic cells, when co-cultured with immortalized mesenchymal cells derived from bone marrow...
2017: PloS One
https://www.readbyqxmd.com/read/29036027/early-macrophage-infiltration-improves-the-fat-graft-survival-by-inducing-angiogenesis-and-hematopoietic-stem-cell-recruitment
#2
Junrong Cai, Jingwei Feng, Kaiyang Liu, Shaolong Zhou, Feng Lu
BACKGROUND: Fat grafting is a popular soft tissue filler method; however, its results are variable and technique-dependent. Macrophages are present in fat grafts and closely associated with tissue regeneration. We hypothesized that activation/depletion of early macrophages in transferred fat improves/impairs fat graft survival. METHODS: Mouse inguinal fat (~150 mg) was transferred autologously. Fat grafting was first performed without other manipulations to obtain baseline information...
October 12, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29035387/stromal-pten-inhibits-the-expansion-of-mammary-epithelial-stem-cells-through-jagged-1
#3
G M Sizemore, S Balakrishnan, A M Hammer, K A Thies, A J Trimboli, J A Wallace, S T Sizemore, R D Kladney, S A Woelke, L Yu, S A Fernandez, A Chakravarti, G Leone, M C Ostrowski
This corrects the article DOI: 10.1038/onc.2016.383.
October 16, 2017: Oncogene
https://www.readbyqxmd.com/read/29031245/decrease-in-cavity-size-and-oligodendrocyte-cell-death-using-neurosphere-derived-oligodendrocyte-like-cells-in-spinal-cord-contusion-model
#4
Hojjat Allah Abbaszadeh, Taki Tiraihi, Yousef Sadeghi, Ali Reza Delshad, Majid Sadeghizadeh, Taher Taheri, Ali Noori-Zadeh
Background: Oligodendrocyte cell death is among the important features of spinal cord injury, which appears within 15 min and occurs intensely for 4 h after injury, in the rat spinal contusion model. Accordingly, the number of oligodendrocytes is progressively reduced within 24 h after injury. Administration of oligodendrocyte-like cells (OLCs) into the lesion area is one of the approaches to counterbalance this condition. Methods: Bone marrow stromal cells were transdifferentiated into neurospheres and then into neural stem cells and later were differentiated into OLCs using triiodothyronine and transplanted into the spinal cord contusion rats...
October 15, 2017: Iranian Biomedical Journal
https://www.readbyqxmd.com/read/29030963/estrogen-regulates-stemness-and-senescence-of-bone-marrow-stromal-cells-to-prevent-osteoporosis-via-er%C3%AE-satb2-pathway
#5
Geng Wu, Rongyao Xu, Ping Zhang, Tao Xiao, Yu Fu, Yuchao Zhang, Yifei Du, Jinhai Ye, Jie Cheng, Hongbing Jiang
Decline of pluripotency in bone marrow stromal cells (BMSCs) associated with estrogen deficiency leads to a bone formation defect in osteoporosis. Special AT-rich sequence binding protein 2 (SATB2) is crucial for maintaining stemness and osteogenic differentiation of BMSCs. However, whether SATB2 is involved in estrogen-deficiency associated-osteoporosis is largely unknown. In this study, we found that estrogen mediated pluripotency and senescence of BMSCs, primarily through estrogen receptor beta (ERβ). BMSCs from the OVX rats displayed increased senescence and weaker SATB2 expression, stemness, and osteogenic differentiation, while estrogen could rescue these phenotypes...
October 14, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29030823/a-facile-in-vitro-384-well-plate-system-to-model-disseminated-tumor-cells-in-the-bone-marrow-microenvironment
#6
Johanna M Buschhaus, Kathryn E Luker, Gary D Luker
Bone marrow disseminated tumor cells (DTCs) are dormant cancer cells that harbor themselves in a bone marrow niche for years after patient remission before potentially returning to a proliferative state, causing recurrent cancer. DTCs reside in bone marrow environments with physiologically important mesenchymal stem cells that are often negatively affected by chemotherapy treatments. Currently, there are very few models of DTCs that recapitulate their dormant phenotype while producing enough samples to accurately quantify cancer and surrounding stromal cell behaviors...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29027958/adipose-tissue-as-a-strategic-source-of-mesenchymal-stem-cells-in-bone-regeneration-a-topical-review-on-the-most-promising-craniomaxillofacial-applications
#7
REVIEW
Francesco Paduano, Massimo Marrelli, Massimiliano Amantea, Carlo Rengo, Sandro Rengo, Michel Goldberg, Gianrico Spagnuolo, Marco Tatullo
Bone regeneration in craniomaxillofacial surgery represents an issue that involves both surgical and aesthetic aspects. The most recent studies on bone tissue engineering involving adipose-derived stromal/stem cells (ASCs) have clearly demonstrated that such cells can play a crucial role in the treatment of craniomaxillofacial defects, given their strong commitment towards the osteogenic phenotype. A deeper knowledge of the molecular mechanisms underlying ASCs is crucial for a correct understanding of the potentialities of ASCs-based therapies in the most complex maxillofacial applications...
October 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29027585/the-features-of-adipose-derived-stem-cells-in-patients-with-inflammatory-bowel-diseases
#8
Tsunekazu Mizushima, Tadafumi Fukata, Hiroshi Takeyama, Hidekazu Takahashi, Naotsugu Haraguchi, Junichi Nishimura, Taishi Hata, Chu Matsuda, Hirofumi Yamamoto, Yuichiro Doki, Masaki Mori
PURPOSE: The treatment outcomes for inflammatory bowel disease (IBD) have been improving, but the development of better therapies is needed. Stem cell therapy is promising, but little is known about the differences in adipose-derived stem cells (ADSCs) between IBD patients and healthy individuals. METHODS: ADSCs were isolated from subcutaneous adipose tissue (SAT) in IBD (Crohn's disease, 3; ulcerative colitis, 2) and non-IBD (colorectal cancer, 5; breast cancer, 1) patients...
October 12, 2017: Surgery Today
https://www.readbyqxmd.com/read/29025595/first-cloned-human-immortalized-adipose-derived-mesenchymal-stem-cell-line-with-chimeric-ss18-ssx1-gene-ss-iasc
#9
Dóra Mihály, Zsolt Matula, Yi-Che Changchien, Gergő Papp, Péter Tátrai, Zoltán Sápi
The SS18-SSX chimeric gene is unique to synovial sarcoma. Multiple model systems including mouse cell lines expressing SS18-SSX, and genetically engineered mouse models of synovial sarcoma have been developed to elucidate the role of the chimeric gene in synovial sarcomagenesis. Although several cell lines stably expressing human SS18-SSX exist, there is an ongoing need for cell culture models enabling researchers to investigate the molecular mechanism of SS18-SSX action in a relevant cellular context. Here we report the establishment of a novel SS18-SSX1-expressing cell line created from immortalized human adipose tissue-derived mesenchymal stem cells via lentiviral transduction of the chimeric gene...
October 2017: Cancer Genetics
https://www.readbyqxmd.com/read/29025229/mechanical-supplementation-with-the-stromal-vascular-fraction-yields-improved-volume-retention-in-facial-lipotransfer-a-1-year-comparative-study
#10
Natale Ferreira Gontijo-de-Amorim, Luiz Charles-de-Sá, Gino Rigotti
Background: Unpredictable volume maintenance in the long term is a major limitation of autologous fat grafting. Objectives: The authors compared results of autologous lipotransfer to the face with or without enrichment of fat with the stromal vascular fraction (SVF). Methods: Thirty patients with asymmetric depletion of facial volume were included in a prospective study. Patients were randomly assigned to undergo a single session of autologous fat transfer with washed adipose tissue (control group) or with washed adipose tissue combined with the pellet of centrifuged lipoaspirate, which contained the SVF (enriched group)...
October 1, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/29025218/regenerative-cells-for-facial-surgery-biofilling-and-biocontouring
#11
Steven R Cohen, Sierra Hewett, Lauren Ross, Flore Delaunay, Ashley Goodacre, Char Ramos, Tracy Leong, Ahmad Saad
Zuk et al in 2001 identified stem and regenerative cells within the stromal vascular fraction of fat. In preclinical studies, these cells appeared to stimulate angiogenesis and reduce inflammation, and soon thereafter, clinical use of stromal vascular fraction (SVF) evolved as researchers such as Rigotti, Coleman, Mojallal, our group, and others demonstrated that fat can be used for both therapeutic and aesthetic indications. The regenerative effects of fat and its contents on facial aesthetics have been shown at the histologic and cellular level...
July 1, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/29025216/assisted-salvage-of-ischemic-fasciocutaneous-flap-using-adipose-derived-mesenchymal-stem-cells-in-situ-revascularization
#12
Michael H Carstens, Mauricio Mendieta, Cecilia Pérez, Esperanza Villareal, Rodolfo Garcia
Adipose-derived mesenchymal stem cells (ASCs) have been shown to produce vascular endothelial growth factor (VEGF) and can increase perfusion in patients with critical limb ischemia. We will show that this concept can be applied to augment blood flow in zones of flap ischemia. We presented a case study of a 26-year-old man with a complex hand injury covered by a reverse radial perforator fasciocutaneous flap, which developed ischemic necrosis and was treated by debridement, transplantation of ASCs to enhance vascular support, and saline dressings...
July 1, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/29025214/effect-feasibility-and-clinical-relevance-of-cell-enrichment-in-large-volume-fat-grafting-a-systematic-review
#13
Bo Sonnich Rasmussen, Celine Lykke Sørensen, Peter Viktor Vester-Glowinski, Mikkel Herly, Stig-Frederik Trojahn Kølle, Anne Fischer-Nielsen, Krzysztof Tadeusz Drzewiecki
Large volume fat grafting is limited by unpredictable volume loss; therefore, methods of improving graft retention have been developed. Fat graft enrichment with either stromal vascular fraction (SVF) cells or adipose tissue-derived stem/stromal cells (ASCs) has been investigated in several animal and human studies, and significantly improved graft retention has been reported. Improvement of graft retention and the feasibility of these techniques are equally important in evaluating the clinical relevance of cell enrichment...
July 1, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/29025211/historical-overview-of-stem-cell-biology-and-fat-grafting
#14
Jajini Varghese, Afshin Mosahebi
The last two decades have seen significant advances within the field of adipose stromal cell transfers, with novel clinical applications being published every few months. This article gives a brief historical overview of the development of stem cell biology and fat grafting.
July 1, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/29025154/hematological-alterations-in-protein-malnutrition
#15
Ed W Santos, Dalila C Oliveira, Graziela B Silva, Maristela Tsujita, Jackeline O Beltran, Araceli Hastreiter, Ricardo A Fock, Primavera Borelli
Protein malnutrition is one of the most serious nutritional problems worldwide, affecting 794 million people and costing up to $3.5 trillion annually in the global economy. Protein malnutrition primarily affects children, the elderly, and hospitalized patients. Different degrees of protein deficiency lead to a broad spectrum of signs and symptoms of protein malnutrition, especially in organs in which the hematopoietic system is characterized by a high rate of protein turnover and, consequently, a high rate of protein renewal and cellular proliferation...
September 6, 2017: Nutrition Reviews
https://www.readbyqxmd.com/read/29024986/stromal-fibroblasts-from-perimenopausal-endometrium-exhibit-a-different-transcriptome-than-those-from-the-premenopausal-endometrium
#16
David W Erikson, Fatima Barragan, Terhi T Piltonen, Joseph C Chen, Shaina Balayan, Juan C Irwin, Linda C Giudice
Human endometrium undergoes extensive regeneration on a cyclic basis in premenopausal women and likely occurs through the contribution of stem/progenitor cells. Menopause results in the permanent cessation of menstrual cycles and is preceded by perimenopause, a period of several years in which endocrine and biological changes occur and is a period of risk for endometrial proliferative disorders. The objectives of this study were to identify mesenchymal stem cells (eMSC) and stromal fibroblasts (eSF) in endometrium of perimenopausal women and perform expression profile analysis of perimenopausal eMSC and eSF to gain insight into the biology of stem/progenitor and lineage cell populations during the transition to menopause...
August 19, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/29024519/optimization-of-the-use-of-a-pharmaceutical-grade-xeno-free-medium-for-in-vitro-expansion-of-human-mesenchymal-stem-stromal-cells
#17
M Cimino, R M Gonçalves, E Bauman, M Barroso-Vilares, E Logarinho, C C Barrias, M C L Martins
Human bone marrow (BM)-derived mesenchymal stem/stromal cells (hMSCs) are considered promising therapeutic agents in the field of cell therapy and regenerative medicine, mainly due to their relative facility to be isolated, multi-differentiation potential and immunomodulatory role. However, their application in clinics requires a crucial step of in vitro expansion. Most of the protocols for hMSCs in vitro culture use foetal bovine serum (FBS) as medium supplement that, being from animal origin, presents several safety concerns and may initiate xenogeneic immune responses after cells transplantation...
October 12, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29024485/placenta-derived-adherent-stromal-cells-improve-diabetes-mellitus-associated-left-ventricular-diastolic-performance
#18
Sophie Van Linthout, Nazha Hamdani, Kapka Miteva, Annika Koschel, Irene Müller, Lena Pinzur, Zami Aberman, Kathleen Pappritz, Wolfgang Albrecht Linke, Carsten Tschöpe
Left ventricular (LV) diastolic dysfunction is among others attributed to cardiomyocyte stiffness. Mesenchymal stromal cells (MSC) have cardiac-protective properties. We explored whether intravenous (i.v.) application of PLacenta-eXpanded (PLX) MSC-like cells (PLX) improves LV diastolic relaxation in streptozotocin (STZ)-induced diabetic mice and investigated underlying mechanisms. Diabetes mellitus was induced by STZ application (50 mg/kg body weight) during five subsequent days. One week after the first STZ injection, PLX or saline were i...
October 10, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/29024311/collagen-inducing-biologization-of-prosthetic-material-for-hernia-repair-polypropylene-meshes-coated-with-polyp-collagen
#19
Maximilian Ackermann, Xiaohong Wang, Shunfeng Wang, Meik Neufurth, Heinz C Schröder, Friedrich-Eckart Isemer, Werner E G Müller
Prostethic mesh material such as nonabsorbable polypropylene used in open and laparoscopic hernia repair are characterized by controllable mechanical properties but may elicit undesirable physiological reactions due to the nonphysiological inert polymer material. We succeeded in developing a biocompatible coating for these meshes, based on a physiological inorganic polymer, polyphosphate (polyP) that is morphogenetically active and used as a metabolic energy source, and a collagen matrix. The polyP/collagen hydrogel material was prepared by a freeze-extraction method, with amorphous Ca-polyP microparticles...
October 10, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/29024236/mesenchymal-stromal-cell-derived-extracellular-vesicles-provide-long-term-survival-after-total-body-irradiation-without-additional-hematopoietic-stem-cell-support
#20
Jill-Sandra Schoefinius, Bärbel Brunswig-Spickenheier, Thomas Speiseder, Sabrina Krebs, Ursula Just, Claudia Lange
The therapeutic effect of mesenchymal stromal cells (MSC) in tissue regeneration is based mainly on the secretion of bioactive molecules. Here, we report that the radioprotective effect of mouse bone marrow derived MSC (mMSC) can be attributed to extracellular vesicles (EV) released from mMSC. The transplantation of mMSC-derived EV into lethally irradiated mice resulted in long-term survival but no improvement in short-term reconstitution of the recipients. Importantly, the radiation rescue was efficient without additional hematopoietic support...
October 11, 2017: Stem Cells
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