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https://www.readbyqxmd.com/read/29457930/nano-loaded-human-umbilical-cord-mesenchymal-stem-cells-as-targeted-carriers-of-doxorubicin-for-breast-cancer-therapy
#1
Shunxiu Cao, Jiamin Guo, Yujing He, Murad Alahdal, Shanshan Tang, Yuekui Zhao, Zhaocong Yang, Huashan Gao, Wenjun Hu, Hulin Jiang, Lianju Qin, Liang Jin
The main challenge of anticancer drugs is poor tumor targeting. Now cellular carriers are widely investigated to deliver anticancer agents. As an ideal cellular candidate, human umbilical cord derived mesenchymal stem cells (hUC-MSCs) possess inherent tropism potential to tumor. Here, we constructed hUC-MSCs carrying transferrin-inspired-nanoparticles that contain doxorubicin(hUC-MSCs-Tf-inspired-NPs) to achieve enhanced anti-tumor efficacy and made an evaluation. Results represented that hUC-MSCs-Tf-inspired-NPs not only exhibit the controlled-release property of Tf-inspired-NPs, but also integrate tumor tropism and penetrative abilities of MSCs...
February 19, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29456659/prmt1-rbm15-axis-regulates-megakaryocytic-differentiation-of-human-umbilical-cord-blood-cd34-cells
#2
Shuiling Jin, Yanfang Mi, Jing Song, Peipei Zhang, Yanyan Liu
Protein arginine methyltransferase 1 (PRMT1) serves pivotal roles in various cellular processes. However, its role in megakaryocytic differentiation has not been clearly reported. The aim of the present study was to explore the role of the PRMT-RNA binding motif protein 15 (RBM15) axis in human MK differentiation and the feasibility of targeting PRMT1 for leukemia treatment. In the present study, PRMT1 was overexpressed and the RBM15 protein was knocked down in human umbilical cord blood cluster of differentiation (CD)34+ cells and the cells were then cultured in megakaryocytic differentiation medium...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29455616/is-the-fetal-cerebroplacental-ratio-better-that-the-estimated-fetal-weight-in-predicting-adverse-perinatal-outcomes-in-a-low-risk-cohort
#3
Christopher Flatley, Sailesh Kumar
OBJECTIVE: In high-risk pregnancies combining the cerebro-placental ratio (CPR) with the estimated fetal weight (EFW) improves the identification of vulnerable fetuses. The purpose of this study was to assess the CPR and EFW's ability to predict adverse obstetric and perinatal outcomes in a low-risk pregnancy, when measured late in gestation. METHODS: This was a retrospective study of women who birthed at Mater Mothers Hospitals, Brisbane, Australia between 2010 and 2015...
February 18, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29454525/radial-umbilical-dermatofasciolysis-to-invert-the-skin-following-umbilical-herniorrhaphy
#4
Emma J Cordes, Melanie LaPlant, Daniel A Saltzman, Robert D Acton, Bradley J Segura, Donavon J Hess
BACKGROUND: Umbilical hernia is a common congenital anomaly, and can result in the appearance of a protuberant umbilicus. In select cases, inversion of the umbilical skin can be impaired by the presence of thickened dermis or fascial remnants of the umbilical stalk. DESCRIPTION OF OPERATIVE TECHNIQUE: After umbilical herniorrhaphy, the skin is everted over the left index finger and radial partial thickness incisions in the fascia and dermis of the undersurface of the umbilicus...
February 14, 2018: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29454374/effects-of-umbilical-cord-blood-cells-and-subtypes-to-reduce-neuroinflammation-following-perinatal-hypoxic-ischemic-brain-injury
#5
Courtney A McDonald, Tayla R Penny, Madison C B Paton, Amy E Sutherland, Lakshmi Nekkanti, Tamara Yawno, Margie Castillo-Melendez, Michael C Fahey, Nicole M Jones, Graham Jenkin, Suzanne L Miller
BACKGROUND: It is well understood that hypoxic-ischemic (HI) brain injury during the highly vulnerable perinatal period can lead to cerebral palsy, the most prevalent cause of chronic disability in children. Recently, human clinical trials have reported safety and some efficacy following treatment of cerebral palsy using umbilical cord blood (UCB) cells. UCB is made up of many different cell types, including endothelial progenitor cells (EPCs), T regulatory cells (Tregs), and monocyte-derived suppressor cells (MDSCs)...
February 17, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29453764/comparative-analysis-of-human-ucb-and-adipose-tissue-derived-mesenchymal-stem-cells-for-their-differentiation-potential-into-brown-and-white-adipocytes
#6
Afrooz Rashnonejad, Gulinnaz Ercan, Cumhur Gunduz, Ali Akdemir, Yigit Ozer Tiftikcioglu
The differentiation potential of umbilical cord blood-derived mesenchymal stem cells (UCB-MSCs) into brown and white adipocytes in comparison to Adipose tissue derived MSCs (AD-MSCs) were investigated in order to characterize their potency for future cell therapies. MSCs were isolated from ten UCB samples and six liposuction materials. MSCs were differentiated into white and brown adipocytes after characterization by flow cytometry. Differentiated adipocytes were stained with Oil Red O and hematoxylin/eosin...
February 16, 2018: Molecular Biology Reports
https://www.readbyqxmd.com/read/29453290/mouse-and-human-hspc-immobilization-in-liquid-culture-by-cd43-or-cd44-antibody-coating
#7
Dirk Loeffler, Weijia Wang, Alois Hopf, Oliver Hilsenbeck, Paul E Bourgine, Fabian Rudolf, Ivan Martin, Timm Schroeder
Keeping track of individual cell identifications is imperative to the study of dynamic single cell behavior over time. Highly motile hematopoietic stem and progenitor cells (HSPCs) migrate quickly and do not adhere, and thus must be imaged very frequently to keep cell identifications. Even worse, they are also flushed away during medium exchange. To overcome these limitations, we tested antibody coating for reducing HSPC motility in vitro. Anti-CD43 and -CD44 antibody coating reduced cell motility of mouse and human HSPCs in a concentration dependent manner...
February 16, 2018: Blood
https://www.readbyqxmd.com/read/29452769/the-radiation-resistance-of-human-multipotent-mesenchymal-stromal-cells-is-independent-of-their-tissue-of-origin
#8
Alexander Rühle, Oliver Xia, Ramon Lopez Perez, Thuy Trinh, Wiltrud Richter, Anna Sarnowska, Patrick Wuchter, Jürgen Debus, Rainer Saffrich, Peter E Huber, Nils H Nicolay
PURPOSE: Human mesenchymal stromal cells (MSCs) may aid the regeneration of ionizing radiation (IR)-induced tissue damage. They can be harvested from different tissues for clinical purposes; however, the role of the tissue source on the radiation response of human MSCs remains unknown. METHODS AND MATERIALS: Human MSCs were isolated from adipose tissue, bone marrow, and umbilical cord, and cellular survival, proliferation, and apoptosis were measured after irradiation...
January 9, 2018: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29448075/improving-mass-univariate-analysis-of-neuroimaging-data-by-modelling-important-unknown-covariates-application-to-epigenome-wide-association-studies
#9
Bryan Guillaume, Changqing Wang, Joann Poh, Mo Jun Shen, Mei Lyn Ong, Pei Fang Tan, Neerja Karnani, Michael Meaney, Anqi Qiu
Statistical inference on neuroimaging data is often conducted using a mass-univariate model, equivalent to fitting a linear model at every voxel with a known set of covariates. Due to the large number of linear models, it is challenging to check if the selection of covariates is appropriate and to modify this selection adequately. The use of standard diagnostics, such as residual plotting, is clearly not practical for neuroimaging data. However, the selection of covariates is crucial for linear regression to ensure valid statistical inference...
February 12, 2018: NeuroImage
https://www.readbyqxmd.com/read/29445723/cord-care-practices-a-perspective-of-contemporary-african-setting
#10
Tolulope O Afolaranmi, Zuwaira I Hassan, Ofakunrin O Akinyemi, Sarah S Sule, Matthew U Malete, Choji Pam Choji, Danjuma A Bello
Background: Cord care is the series of steps applied in handling of the umbilical cord after delivery of the new born. Globally, an estimated 4 million deaths occur annually within the first 4 weeks of life and 1.5 million of these deaths are attributable to infections. In Nigeria, studies have reported umbilical cord infections accounting for between 10 and 19% of neonatal admissions and resultant estimated 30-49% neonatal deaths. Hence, this study was conducted to assess the knowledge and practice of cord care within a contemporary setting...
2018: Frontiers in Public Health
https://www.readbyqxmd.com/read/29445474/monochorionic-diamniotic-twins-with-centrally-located-and-closely-spaced-umbilical-cord-insertions-in-the-placenta
#11
Takashi Imamura, Hajime Maeda, Hidetoshi Kinoshita, Shogo Kin
When to deliver the monochorionic diamniotic (MCDA) twins with specific cord patterns? Although there is no clear evidence supporting an earlier delivery (before 36 weeks of gestation) in MCDA twins, an earlier delivery might prevent intrauterine death or neuromorbidity in MCDA twins with specific cord patterns.
February 2018: Clinical Case Reports
https://www.readbyqxmd.com/read/29444515/comprehensive-mirna-analysis-of-human-umbilical-cord-derived-mesenchymal-stromal-cells-and-extracellular-vesicles
#12
Xiang-Yu Zou, Yongjiang Yu, Sihao Lin, Liang Zhong, Jie Sun, Guangyuan Zhang, Yingjian Zhu
BACKGROUND/AIMS: Mesenchymal stromal cells (MSCs) participate in the tissue-specific repair of many different organs, especially the kidney. Their effects are primarily mediated by the paracrine release of factors including extracellular vesicles (EVs), which are composed of micro-vesicles and exosomes. The corresponding microRNAs (miRNAs) of EVs are considered important for their biological functions. METHODS: MSCs were cultured from the human umbilical cord, and EVs were isolated from the medium...
February 8, 2018: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29443452/development-of-versatile-human-in-vitro-vascularized-adipose-tissue-model-with-serum-free-angiogenesis-and-natural-adipogenesis-induction
#13
Outi Huttala, Maaria Palmroth, Pauliina Hemminki, Tarja Toimela, Tuula Heinonen, Timo Ylikomi, Jertta-Riina Sarkanen
Many adipose tissue-related diseases, such as obesity and type 2 diabetes, are worldwide epidemics. For studying these diseases, relevant human cell models are needed. In this study, we developed a vascularized adipose tissue model where human adipose stromal cells (hASC) and human umbilical cord vein endothelial cells (HUVEC) were co-cultured with natural adipogenic and defined serum-free angiogenic media for 14 days. Several different protocols were compared to each other. The protocols varied in cell numbers and plating sequences...
February 14, 2018: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/29443032/kinetic-analysis-of-vasculogenesis-quantifies-dynamics-of-vasculogenesis-and-angiogenesis-in-vitro
#14
Kaela M Varberg, Seth Winfree, Kenneth W Dunn, Laura S Haneline
Vasculogenesis is a complex process by which endothelial stem and progenitor cells undergo de novo vessel formation. Quantitative assessment of vasculogenesis has become a central readout of endothelial progenitor cell functionality, and therefore, several attempts have been made to improve both in vitro and in vivo vasculogenesis models. However, standard methods are limited in scope, with static measurements failing to capture many aspects of this highly dynamic process. Therefore, the goal of developing this novel protocol was to assess the kinetics of in vitro vasculogenesis in order to quantitate rates of network formation and stabilization, as well as provide insight into potential mechanisms underlying vascular dysfunction...
January 31, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29442894/graphene-oxide-incorporated-plga-nanofibrous-scaffold-for-solid-phase-gene-delivery-into-mesenchymal-stem-cells
#15
Zhiying Wang, He Shen, Saijie Song, Liming Zhang, Wei Chen, Jianwu Dai, Zhijun Zhang
Delivery of functional genes into stem cells shows great application prospect in DNA-based tissue engineering. However, comparing with epithelial cells and cancer cells, stem cells usually exhibit low gene transfection efficiency. To enhance the transfection efficiency, non-viral gene delivery in combination with biomaterial scaffolds, has raised increasing interests from researchers in tissue engineering. Nanofibers fabricated by electrospinning technique mimicking extracellular matrix (ECM) are widely used in tissue engineering applications...
April 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29440630/human-umbilical-cord-mesenchymal-stem-cell-derived-extracellular-vesicles-promote-lung-adenocarcinoma-growth-by-transferring-mir-410
#16
Liyang Dong, Yanan Pu, Lina Zhang, Qianqian Qi, Lei Xu, Wei Li, Chuan Wei, Xiaofan Wang, Sha Zhou, Jifeng Zhu, Xuefeng Wang, Feng Liu, Xiaojun Chen, Chuan Su
Although accumulating evidence has linked mesenchymal stem cells (MSCs) with tumor growth, the underlying mechanisms are poorly understood. Here, we demonstrated for the first time that human umbilical cord MSCs (hUCMSCs) dramatically increased the growth of lung adenocarcinoma (LUAD) cancer cells in a xenograft tumor model. Then, we observed that hUCMSC-derived extracellular vesicles (hUCMSC-EVs) contribute to the hUCMSC-promoted LUAD cell growth through a direct effect on LUAD cells. Furthermore, we showed that hUCMSC-EV-mediated LUAD growth is associated with increased proliferation and decreased apoptosis in LUAD cells, concomitant with reduced PTEN expression mediated by the hUCMSC-EV-transmitted miR-410...
February 13, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29439621/biofluid-metabolomics-in-preterm-birth-research
#17
Ana M Gil, Daniela Duarte
This article presents an account of the research carried out so far in the use of metabolomics to find biomarkers of preterm birth (PTB) in fetal, maternal, and newborn biofluids. Metabolomic studies have employed mainly nuclear magnetic resonance spectroscopy or mass spectrometry-based methodologies to analyze, on one hand, prenatal biofluids (amniotic fluid, maternal urine/maternal blood, cervicovaginal fluid) to identify predictive biomarkers of PTB, and on the other hand, biofluids collected at or after birth (amniotic fluid, umbilical cord blood, newborn urine, and newborn blood, maternal blood, or breast milk) to assess and follow up the health status of PTB babies...
January 1, 2018: Reproductive Sciences
https://www.readbyqxmd.com/read/29439436/chondrogenic-differentiation-of-defined-equine-mesenchymal-stem-cells-derived-from-umbilical-cord-blood-for-use-in-cartilage-repair-therapy
#18
Mélanie Desancé, Romain Contentin, Lélia Bertoni, Tangni Gomez-Leduc, Thomas Branly, Sandrine Jacquet, Jean-Marc Betsch, Agnès Batho, Florence Legendre, Fabrice Audigié, Philippe Galéra, Magali Demoor
Cartilage engineering is a new strategy for the treatment of cartilage damage due to osteoarthritis or trauma in humans. Racehorses are exposed to the same type of cartilage damage and the anatomical, cellular, and biochemical properties of their cartilage are comparable to those of human cartilage, making the horse an excellent model for the development of cartilage engineering. Human mesenchymal stem cells (MSCs) differentiated into chondrocytes with chondrogenic factors in a biomaterial appears to be a promising therapeutic approach for direct implantation and cartilage repair...
February 10, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29436245/vitamin-a-intake-of-brazilian-mothers-and-retinol-concentrations-in-maternal-blood-human-milk-and-the-umbilical-cord
#19
Thalia Manfrin Martins Deminice, Ivan Savioli Ferraz, Jacqueline Pontes Monteiro, Alceu Afonso Jordão, Lívia Maria Cordeiro Simões Ambrósio, Carlos Alberto Nogueira-de-Almeida
Objectives To analyse intake of vitamin A (VA) and retinol concentrations in maternal blood, breast milk (BM), and the umbilical cord (UC) of newborns, and to determine the associations among these variables. Methods We performed a cross-sectional, epidemiological study of 180 mother-newborn dyads. Maternal and UC blood samples and BM were collected. VA intake by the mother over 30 days was assessed using a questionnaire. Results Mean retinol concentrations in maternal serum, the UC, and BM were 0.65 ± 0...
January 1, 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29436076/mrna-expression-of-drug-metabolism-enzymes-and-transporter-genes-at-birth-using-human-umbilical-cord-blood
#20
Virginia Neyro, Valéry Elie, Yves Médard, Evelyne Jacqz-Aigrain
Growth and maturation changes are mainly responsible for differences in drug pharmacokinetics and pharmacodynamics observed between adults and children, especially neonates. Ontogeny of drug metabolizing enzymes and transporters play an important role in drugs inter-individual pharmacokinetic variability but data are limited in both term and preterm neonates. This study aimed to characterize mRNA expression of the main drug metabolizing enzymes and transport proteins involved in drug disposition, using umbilical cord blood (UCB), according to gender, gestational age and genetic background...
February 13, 2018: Fundamental & Clinical Pharmacology
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