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https://www.readbyqxmd.com/read/29131029/rapid-induction-of-osteogenic-markers-in-mesenchymal-stem-cells-by-adipose-derived-stromal-vascular-fraction-cells
#1
Jung-Won Choi, Sunhye Shin, Chang Youn Lee, Jiyun Lee, Hyang-Hee Seo, Soyeon Lim, Seahyoung Lee, Il-Kwon Kim, Hoon-Bum Lee, Sang Woo Kim, Ki-Chul Hwang
BACKGROUND/AIMS: Stromal vascular fraction (SVF) cells are a mixed cell population, and their regenerative capacity has been validated in various therapeutic models. The purpose of this study was to investigate the regenerative mechanisms utilized by implanted SVF cells. Using an in vitro co-culture system, we sought to determine whether SVF implantation into impaired tissue affects endogenous mesenchymal stem cell (MSC) differentiation; MSCs can differentiate into a variety of cell types, and they have a strong regenerative capacity despite their low numbers in impaired tissue...
November 3, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29129498/a-novel-double-layer-mucoadhesive-tablet-containing-probiotic-strain-for-vaginal-administration-design-development-and-technological-evaluation
#2
María Teresa Sánchez, María Adolfina Ruiz, Herminia Castán, María Encarnación Morales
Vulvovaginal candidosis caused by Candida spp. is the most prevalent vaginal infection in Europe and the second one in EE.UU, so it has become a major female concern. Probiotics bacteria have been proposed as an alternative treatment with the aim of avoiding the adverse effects associated with conventional therapies including antibiotics and other aggressive drugs for the vaginal mucosa and microbiota. The purpose of this work was to design and develop a novel vaginal tablet that contained Lactobacillus spp...
November 10, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29124400/characterization-of-m1-and-m2-polarization-of-macrophages-in-vascularized-human-dermo-epidermal-skin-substitutes-in-vivo
#3
Agnes S Klar, Katarzyna Michalak-Mićka, Thomas Biedermann, Claudia Simmen-Meuli, Ernst Reichmann, Martin Meuli
AIMS AND OBJECTIVES: Vascularized bio-engineered human dermo-epidermal skin substitutes (vascDESS) hold promise for treating burn patients, including those with severe full-thickness wounds. We have previously shown that vascDESS promote wound healing by enhanced influx of macrophages and granulocytes. Immediately following transplantation, macrophages infiltrate the graft and differentiate into a pro-inflammatory (M1) or a pro-healing M2 phenotype. The aim of this study was to characterize the activation state of macrophages infiltrating skin transplants at distinct time points following transplantation...
November 9, 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/29116032/single-cell-transcriptomics-suggest-that-human-adipocyte-progenitor-cells-constitute-a-homogeneous-cell-population
#4
Juan R Acosta, Simon Joost, Kasper Karlsson, Anna Ehrlund, Xidan Li, Myriam Aouadi, Maria Kasper, Peter Arner, Mikael Rydén, Jurga Laurencikiene
Regulation of adipose tissue stem cells (ASCs) and adipogenesis impact the development of excess body fat-related metabolic complications. Animal studies have suggested the presence of distinct subtypes of ASCs with different differentiation properties. In addition, ASCs are becoming the biggest source of mesenchymal stem cells used in therapies, which requires deep characterization. Using unbiased single cell transcriptomics we aimed to characterize ASC populations in human subcutaneous white adipose tissue (scWAT)...
November 7, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29113467/adipose-derived-mesenchymal-stem-cells-from-the-elderly-exhibit-decreased-migration-and-differentiation-abilities-with-senescent-properties
#5
Meichen Liu, Hua Lei, Ping Dong, Xin Fu, Zhigang Yang, Ying Yang, Jiguang Ma, Xia Liu, Yilin Cao, Ran Xiao
Adipose-derived stem cells (ASCs) can be applied extensively in the clinic because they can be easily isolated and cause less donor-site morbidity; however, their application can be complicated by patient-specific factors, such as age and harvest site. In this study, we systematically evaluated the effects of age on the quantity and quality of human adipose-derived mesenchymal stem cells (hASCs) isolated from excised chest subcutaneous adipose tissue and investigated the underlying molecular mechanism. hASCs were isolated from donors of 3 different age-groups (i...
September 2017: Cell Transplantation
https://www.readbyqxmd.com/read/29102952/comparison-of-the-viability-and-yield-of-adipose-derived-stem-cells-ascs-from-different-donor-areas
#6
Anastasios Tsekouras, Dimitrios Mantas, Diamantis I Tsilimigras, Demetrios Moris, Michael Kontos, George C Zografos
BACKGROUND: Adipose tissue contains variable amounts of stem cells that have recently attracted increased interest due to their strong proliferative and differentiation capacity. However, significant heterogeneity exists in terms of stem cell yield and viability profile among individuals as well as different donor areas. MATERIALS AND METHODS: Between June 2016 and July 2016, forty (40) women underwent outpatient cosmetic liposuction procedures conferring a total of 53 lipoaspirates; inner thigh (n=13), outer thigh (n=9), abdomen (n=9), waist (n=16) and inner knee (n=6)...
November 2017: In Vivo
https://www.readbyqxmd.com/read/29100864/sustained-simultaneous-delivery-of-metronidazole-and-doxycycline-from-polycaprolactone-matrices-designed-for-intravaginal-treatment-of-pelvic-inflammatory-disease
#7
Meenakshi Pathak, Allan G A Coombes, BoMi Ryu, Peter J Cabot, Mark S Turner, Cheryn Palmer, Dongjie Wang, Kathryn J Steadman
Poly(ɛ-caprolactone) (PCL) intra-vaginal matrices were produced for local delivery of a combination of antibacterials, by rapidly cooling a mixture of drug powders dispersed in PCL solution. Matrices loaded with different combinations of metronidazole (10, 15 and 20% w/w) and doxycycline (10% w/w), were evaluated in vitro for release behavior and antibacterial activity. Rapid 'burst release' of 8-15% of the doxycycline content and 31-37% of the metronidazole content occurred within 24 h when matrices were immersed in simulated vaginal fluid (SVF) at 37°C...
October 31, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29079730/engineering-of-an-angiogenic-niche-by-perfusion-culture-of-adipose-derived-stromal-vascular-fraction-cells
#8
Giulia Cerino, Emanuele Gaudiello, Manuele Giuseppe Muraro, Friedrich Eckstein, Ivan Martin, Arnaud Scherberich, Anna Marsano
In vitro recapitulation of an organotypic stromal environment, enabling efficient angiogenesis, is crucial to investigate and possibly improve vascularization in regenerative medicine. Our study aims at engineering the complexity of a vascular milieu including multiple cell-types, a stromal extracellular matrix (ECM), and molecular signals. For this purpose, the human adipose stromal vascular fraction (SVF), composed of a heterogeneous mix of pericytes, endothelial/stromal progenitor cells, was cultured under direct perfusion flow on three-dimensional (3D) collagen scaffolds...
October 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29059354/inflammation-and-fibrosis-in-perirenal-adipose-tissue-of-patients-with-aldosterone-producing-adenoma
#9
Chunyan Wu, Huijian Zhang, Jiajun Zhang, Cuihua Xie, Cunxia Fan, Hongbin Zhang, Peng Wu, Qiang Wei, Wanlong Tan, Lingling Xu, Ling Wang, Yaoming Xue, Meiping Guan
The prevalence of primary aldosteronism is much higher than previously thought. Recent studies have shown that primary aldosteronism is related to a higher risk of cardiovascular events. However, the underlying mechanism is not yet clear. Here we investigate the characteristics, including inflammation, fibrosis and adipokine expression, of adipose tissues from different deposits in patients with aldosterone-producing adenoma (APA). Inflammation and fibrosis changes were evaluated in perirenal and subcutaneous adipose tissues obtained from patients with APA (n=16), normotension (NT; n=10) and essential hypertension (EH; n=5) undergoing laparoscopic surgery...
October 19, 2017: Endocrinology
https://www.readbyqxmd.com/read/29058626/combined-platelet-rich-plasma-and-lipofilling-treatment-provides-great-improvement-in-facial-skin-induced-lesion-regeneration-for-scleroderma-patients
#10
Francesco Virzì, Paola Bianca, Alessandro Giammona, Tiziana Apuzzo, Simone Di Franco, Laura Rosa Mangiapane, Maria Luisa Colorito, Dario Catalano, Emanuela Scavo, Annalisa Nicotra, Antonina Benfante, Giuseppe Pistone, Valentina Caputo, Francesco Dieli, Roberto Pirrello, Giorgio Stassi
BACKGROUND: The use of stem cells, including mesenchymal stem cells (MSCs), for regenerative medicine is gaining interest for the clinical benefits so far obtained in patients. This study investigates the use of adipose autologous tissue in combination with platelet-rich plasma (PRP) to improve the clinical outcome of patients affected by systemic sclerosis (SSc). METHODS: Adipose-derived mesenchymal stem cells (AD-MSCs) and PRPs were purified from healthy donors and SSc patients...
October 23, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29038672/safety-analysis-of-autologous-stem-cell-therapy-in-a-variety-of-degenerative-diseases-and-injuries-using-the-stromal-vascular-fraction
#11
Kristin Comella, Michelle Parlo, Rosemary Daly, Vincent Depasquale, Eric Edgerton, Patrick Mallory, Roy Schmidt, Walter P Drake
BACKGROUND: Stem cells from adipose tissue offer a novel therapy for patients with damaged tissue. Stromal vascular fraction (SVF) injected into patients may reduce inflammation, promote healing, and repair damaged/scarred tissue. SVF can be isolated from fat (adipose) tissue in an outpatient procedure. The SVF population includes mesenchymal stem cells (MSCs), pericytes, endothelial/progenitor cells, fibroblasts and growth factors where the adipocyte (fat cell) population has been removed...
November 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/29036027/early-macrophage-infiltration-improves-the-fat-graft-survival-by-inducing-angiogenesis-and-hematopoietic-stem-cell-recruitment
#12
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/29027585/the-features-of-adipose-derived-stem-cells-in-patients-with-inflammatory-bowel-diseases
#13
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/29025229/mechanical-supplementation-with-the-stromal-vascular-fraction-yields-improved-volume-retention-in-facial-lipotransfer-a-1-year-comparative-study
#14
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
#15
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
#16
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
#17
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/29025212/use-of-freshly-isolated-human-adipose-stromal-cells-for-clinical-applications
#18
Ryan A Lockhart, Joel A Aronowitz, Severiano Dos-Anjos Vilaboa
The clinical use of adipose-derived cells is being explored very actively around the world for various human diseases. Adipose tissue is an abundant tissue source that can be easily harvested using liposuction. Human lipoaspirates contain a significant amount of mesenchymal stromal cells, as well as other progenitors and terminally differentiated cell types. This review covers the isolation of adipose stromal vascular fraction (SVF), the quality control and safety analysis of freshly isolated cell suspensions...
July 1, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/29020691/erratum-comparison-of-platelet-rich-plasma-stromal-vascular-fraction-svf-or-svf-with-an-injectable-plga-nanofiber-scaffold-for-the-treatment-of-osteochondral-injury-in-dogs
#19
Samuel P Franklin, Aaron M Stoker, Chantelle C Bozynski, Keiichi Kuroki, Kevin M Clarke, Jed K Johnson, James L Cook
No abstract text is available yet for this article.
October 11, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29019860/the-addition-of-prp-to-facial-lipofilling-a-double-blind-placebo-controlled-randomized-trial
#20
J C N Willemsen, J Van Dongen, M Spiekman, K M Vermeulen, M C Harmsen, B van der Lei, H P J D Stevens
BACKGROUND: Lipofilling is a treatment modality to restore tissue volume, but may also rejuvenate the aging skin. Platelet-rich plasma has been reported to augment the efficacy of lipofilling, both on graft take and rejuvenation by altering the ADSC. Authors hypothesized that PRP addition would increase the rejuvenating effect while shortening recovery time. METHODS: The study conducted was a single-centre, double blinded, placebo-controlled randomized trial (2012-2015)...
October 10, 2017: Plastic and Reconstructive Surgery
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