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Clinical flow cytometry

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https://www.readbyqxmd.com/read/28441791/selective-toxicity-of-non-polar-bioactive-compounds-of-persian-gulf-sea-squirt-phallusia-nigra-on-skin-mitochondria-isolated-from-rat-model-of-melanoma
#1
Yalda Arast, Nina Seyed Razi, Enayatollah Seydi, Parvaneh Naserzadeh, Melika Nazemi, Jalal Pourahmad
Background: Skin cancer is the most prevalent cancer and one of the major causes of mortality worldwide. Marin animals have attracted much attention in recent years as useful substances having application in medicine. It was shown that Phallusia nigra (P. nigra) known as sea squirt could play an important role in cancer therapy. Methods: This study was designed to figure out the probable selective toxicity of n-hexane, diethyl ether, methanolic and aqueous extracts of P. nigra on cancerous mitochondria isolated from the skin of melanoma induced rats...
March 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28441413/langerhans-cells-prevent-subbasal-nerve-damage-and-upregulate-neurotrophic-factors-in-dry-eye-disease
#2
Eun Young Choi, Hyun Goo Kang, Chul Hee Lee, Areum Yeo, Hye Mi Noh, Nayeong Gu, Myoung Joon Kim, Jong Suk Song, Hyeon Chang Kim, Hyung Keun Lee
The functional role of Langerhans cells (LCs) in ocular surface inflammation and nerve damage in dry eye (DE) disease has yet to be determined. This study was performed to investigate this relationship through both clinical study on DE patients and in vivo mouse models with induced DE disease. In a cross-sectional case-control study (54 eyes of DE patients; 34 eyes of control patients), average cell density, area, and process length of LCs were measured using confocal microscopy. Data were analyzed to determine whether changes in LCs are correlated with subbasal nerve plexus (SNP) parameters (nerve density, beading, and tortuosity)...
2017: PloS One
https://www.readbyqxmd.com/read/28441050/comparison-of-platelet-function-and-viscoelastic-test-results-between-healthy-dogs-and-dogs-with-naturally-occurring-chronic-kidney-disease
#3
Alicia Dudley, Julie K Byron, Mary Jo Burkhard, Emma Warry, Julien Guillaumin
OBJECTIVE To compare platelet function and viscoelastic test results between healthy dogs and dogs with chronic kidney disease (CKD) to assess whether dogs with CKD have platelet dysfunction and altered blood coagulation. ANIMALS 10 healthy control dogs and 11 dogs with naturally occurring CKD. PROCEDURES Blood and urine were collected once from each dog for a CBC, serum biochemical analysis, urinalysis, and determination of the urine protein-to-creatinine ratio, prothrombin time, activated partial thromboplastin time, plasma fibrinogen concentration, and antithrombin activity...
May 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28440819/amphiphilic-carbon-dots-as-versatile-vectors-for-nucleic-acid-and-drug-delivery
#4
Hai-Jiao Wang, Xi He, Tian-Ying Luo, Ji Zhang, Yan-Hong Liu, Xiao-Qi Yu
Carbon dot (CD)-based multifunctional delivery systems have shown great potential in both drug/gene delivery and bio-imaging. In this work, we present a strategy to simply construct amphiphilic CDs (ACDs) by conjugating hydrophobic alkyl epoxide to the surface amino groups of PEI 600-derived CDs. ACDs could well dissolve in water or organic solvents and emit bright fluorescence both in solutions and cells. (1)HNMR also suggested that ACDs may form micelle-like structures in water, and their CMC could be determined...
April 25, 2017: Nanoscale
https://www.readbyqxmd.com/read/28440506/association-between-high-mobility-group-box%C3%A2-1-protein-expression-and-cell-death-in-acute-pancreatitis
#5
Enjun Gao, Yanfeng Jiang, Zhituo Li, Dongbo Xue, Weihui Zhang
The present study used caerulein stimulation of AR42J rat pancreatic cells as an in vitro acute pancreatitis (AP) model to investigate proteins differentially expressed in apoptosis and necrosis. AR42J cells were stimulated with 10‑8mol/l caerulein and incubated for 24 h. Apoptosis and necrosis were detected using flow cytometry. The sorted Annexin V‑positive cells (apoptotic) and the Annexin V/propidium iodide double‑positive cells (necrotic) were analysed using proteomics. Results showed that numerous proteins were differentially expressed in these 2 groups...
April 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28440488/dipeptidyl-peptidase%C3%A2-4-inhibitor-sitagliptin-prevents-high-glucose%C3%A2-induced-apoptosis-via-activation-of-amp%C3%A2-activated-protein-kinase-in-endothelial-cells
#6
Chao Wu, Shunying Hu, Nanping Wang, Jianwei Tian
Diabetes mellitus (DM), which is a chronic metabolic disorder, is the primary risk factor of life‑threatening vascular complications. Endothelial apoptosis is important in the development of the initial vascular lesion preceding the diabetic disease. Sitagliptin is a dipeptidyl peptidase‑4 (DPP‑4) inhibitor and extensively used in the clinical treatment of DM. DPP‑4 inhibitors have been demonstrated to be beneficial in the improvement of endothelial homeostasis, however the molecular mechanism by which they exhibit these effects remains to be elucidated...
April 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28440449/preoperative-tim%C3%A2-3-expression-on-peripheral-nk-cells-is-correlated-with-pathologic-tnm-staging-in-colorectal-cancer
#7
Yang Wang, Jintang Sun, Wenjuan Gao, Bingfeng Song, Qianqian Shao, Lei Zhao, Yun Zhang, Qingjie Wang, Yun Zhang, Xun Qu
Previous research has indicated that T cell immunoglobulin and mucin domain 3 (Tim-3) serves an important regulatory role in lymphocytes and in several cancers. However, the association between Tim‑3 expression on various lymphocyte subsets and human colorectal cancer (CRC) has not been elucidated. The present study aimed to characterize Tim‑3 expression on peripheral lymphocytes, including cluster of differentiation CD3+CD56‑ T cells, CD3‑CD56+ natural killer (NK) cells and CD3+CD56+ natural killer T (NKT) cells, in patients with CRC...
April 19, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28439677/ap-2%C3%AE-reverses-vincristine-induced-multidrug-resistance-of-sgc7901-gastric-cancer-cells-by-inhibiting-the-notch-pathway
#8
Wei Lian, Li Zhang, Long Yang, Wensheng Chen
Multidrug resistance (MDR) remains a major clinical obstacle in the treatment of gastric cancer (GC) since it causes tumor recurrence and metastasis. The transcription factor activator protein-2α (AP-2α) has been implicated in drug-resistance in breast cancer; however, its effects on MDR of gastric cancer are far from understood. In this study, we aimed to explore the effects of AP-2α on the MDR in gastric cancer cells selected by vincristine (VCR). Decreased AP-2α levels were markedly detected by RT-PCR and Western blot in gastric cancer cell lines (BGC-823, SGC-7901, AGS, MKN-45) compared with that in the gastric epithelial cell line (GES-1)...
April 24, 2017: Apoptosis: An International Journal on Programmed Cell Death
https://www.readbyqxmd.com/read/28439401/long-non-coding-rna-malat1-contributes-to-cell-apoptosis-by-sponging-mir-124-in-parkinson-disease
#9
Wei Liu, Qishun Zhang, Jianlei Zhang, Wujun Pan, Jingya Zhao, Yuming Xu
BACKGROUND: Parkinson disease (PD) is the most common movement disturbance characterized by the loss of dopaminergic (DA) neurons in midbrain. Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) is aberrantly expressed in neurons and is involved in the dendritic and synapse development. However, the role of MALAT1 and its underlying mechanism in PD remain to be defined. METHODS: The expressions of MALAT1 and miR-124 were evaluated by qRT-PCR. N-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced PD mice and SH-SY5Y cells subjected to N-methyl-4-phenylpyridinium (MPP(+)) were utilized to investigate the effect of MALAT1 on PD...
2017: Cell & Bioscience
https://www.readbyqxmd.com/read/28439079/translation-but-not-transfection-limits-clinically-relevant-exogenous-mrna-based-induction-of-alpha-4-integrin-expression-on-human-mesenchymal-stem-cells
#10
Adam Nowakowski, Anna Andrzejewska, Johannes Boltze, Franziska Nitzsche, Li-Li Cui, Jukka Jolkkonen, Piotr Walczak, Barbara Lukomska, Miroslaw Janowski
Mesenchymal stem cells (MSCs) represent promising resource of cells for regenerative medicine in neurological disorders. However, efficient and minimally invasive methods of MSCs delivery to the brain still have to be developed. Intra-arterial route is very promising, but MSCs are missing machinery for diapedesis through blood-brain barrier. Thus, here we have tested a mRNA-based method to induce transient expression of ITGA4, an adhesion molecule actively involved in cell extravasation. We observed that transfection with an ITGA4-mRNA construct bearing a conventional cap analogue (7-methylguanosine) failed to produce ITGA4 protein, but exogenous ITGA4-mRNA was detected in transfected MSCs...
April 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28438482/manufacture-and-preparation-of-human-placenta-derived-mesenchymal-stromal-cells-for-local-tissue-delivery
#11
Lee Lankford, Y Julia Chen, Zoe Saenz, Priyadarsini Kumar, Connor Long, Diana Farmer, Aijun Wang
BACKGROUND: In this study we describe the development of a Current Good Manufacturing Practice (CGMP)-compliant process to isolate, expand and bank placenta-derived mesenchymal stromal cells (PMSCs) for use as stem cell therapy. We characterize the viability, proliferation and neuroprotective secretory profile of PMSCs seeded on clinical-grade porcine small intestine submucosa extracellular matrix (SIS-ECM; Cook Biotech). METHODS: PMSCs were isolated from early gestation placenta chorionic villus tissue via explant culture...
April 21, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28436295/treatment-response-to-dimethyl-fumarate-is-characterized-by-disproportionate-cd8-t-cell-reduction-in-ms
#12
Vinzenz Fleischer, Michaela Friedrich, Ayman Rezk, Ulrike Bühler, Esther Witsch, Timo Uphaus, Stefan Bittner, Sergiu Groppa, Björn Tackenberg, Amit Bar-Or, Frauke Zipp, Felix Luessi
BACKGROUND: The effect of dimethyl fumarate (DMF) on circulating lymphocyte subsets and their contribution as predictors of clinical efficacy have not yet been investigated in multiple sclerosis (MS). OBJECTIVE: To evaluate lymphocytes and lymphocyte subsets (analyzed 6 months after DMF start) in MS patients with and without disease activity after 1 year of treatment in a retrospective study. METHODS: Peripheral blood lymphocyte subsets were analyzed by flow cytometry...
April 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28435655/a-80-year-old-woman-with-b-cell-prolymphocytic-leukemia
#13
Alparslan Merdin, Jale Yıldız, Sinan Dal Mehmet, Merih Kızıl Çakar, Hikmetullah Batgi, Emre Tekgündüz, Aykut Onursever, Fevzi Altuntaş
Prolymhocytic leukemia (PLL) is a rare subtype of lymphocytic leukemias and its cells are immature lymphocytes. It is divided into 2 subgroups: T-PLL and B-PLL according to the lymphocytic origin of the cells. Discriminating B-PLL from other diseases with clinically-similar features is important because of the different treatment approaches and follow-up programs. Hereby, we report a 80-year-old woman presenting with fatigue, leucocytosis and mild anemia. Her peripheral blood smear evaluation revealed 85% prolymphocytes with moderately condensed nuclear chromatin, prominent nucleoli, and a faintly basophilic cytoplasm...
February 23, 2017: Hematology Reports
https://www.readbyqxmd.com/read/28435471/nucleolin-targeted-extracellular-vesicles-as-a-versatile-platform-for-biologics-delivery-to-breast-cancer
#14
Yayu Wang, Xiaojia Chen, Baoqing Tian, Jiafan Liu, Li Yang, Lilan Zeng, Tianfen Chen, An Hong, Xiaogang Wang
Small interfering RNAs (siRNA)/microRNAs (miRNA) have promising therapeutic potential, yet their clinical application has been hampered by the lack of appropriate delivery systems. Herein, we employed extracellular vesicles (EVs) as a targeted delivery system for small RNAs. EVs are cell-derived small vesicles that participate in cell-to-cell communication for protein and RNA delivery. We used the aptamer AS1411-modified EVs for targeted delivery of siRNA/microRNA to breast cancer tissues. Tumor targeting was facilitated via AS1411 binding to nucleolin, which is highly expressed on the surface membrane of breast cancer cells...
2017: Theranostics
https://www.readbyqxmd.com/read/28435324/symptomatic-central-nervous-system-involvement-in-adult-patients-with-acute-myeloid-leukemia
#15
Nael Alakel, Friedrich Stölzel, Brigitte Mohr, Michael Kramer, Uta Oelschlägel, Christoph Röllig, Martin Bornhäuser, Gerhard Ehninger, Markus Schaich
INTRODUCTION: Acute myeloid leukemia (AML) rarely involves the central nervous system (CNS). Little is known about the clinical course in adult AML patients since most studies examined pediatric patients. Therefore, this study analyzed the data of patients treated in three prospective trials of the "Study Alliance Leukemia" (SAL) study group for CNS involvement. METHODS: In all, 3,261 AML patients included in the prospective AML96, AML2003, and AML60+ trials of the SAL study group were analyzed...
2017: Cancer Management and Research
https://www.readbyqxmd.com/read/28434944/dose-dependent-t-cell-dynamics-and-cytokine-cascade-following-rvsv-zebov-immunization
#16
Christine Dahlke, Rahel Kasonta, Sebastian Lunemann, Verena Krähling, Madeleine E Zinser, Nadine Biedenkopf, Sarah K Fehling, My L Ly, Anne Rechtien, Hans C Stubbe, Flaminia Olearo, Saskia Borregaard, Alen Jambrecina, Felix Stahl, Thomas Strecker, Markus Eickmann, Marc Lütgehetmann, Michael Spohn, Stefan Schmiedel, Ansgar W Lohse, Stephan Becker, Marylyn M Addo
BACKGROUND: The recent West African Ebola epidemic led to accelerated efforts to test Ebola vaccine candidates. As part of the World Health Organisation-led VSV Ebola Consortium (VEBCON), we performed a phase I clinical trial investigating rVSV-ZEBOV (a recombinant vesicular stomatitis virus-vectored Ebola vaccine), which has recently demonstrated protection from Ebola virus disease (EVD) in phase III clinical trials and is currently in advanced stages of licensing. So far, correlates of immune protection are incompletely understood and the role of cell-mediated immune responses has not been comprehensively investigated to date...
April 5, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28433687/steroid-resistance-of-airway-type-2-innate-lymphoid-cells-ilc2s-from-severe-asthma-the-role-of-thymic-stromal-cell-lymphopoietin-tslp
#17
Sucai Liu, Mukesh Verma, Lidia Michalec, Weimin Liu, Anand Sripada, Donald Rollins, James Good, Yoko Ito, HongWei Chu, Magdalena M Gorska, Richard J Martin, Rafeul Alam
BACKGROUND: ILC2s represent an important type 2 immune cell. Glucocorticoid regulation of human ILC2s is largely unknown. OBJECTIVE: To assess steroid resistance of human blood and airway ILC2s from asthmatic patients and examine its mechanism of induction. METHODS: We studied human blood and lung ILC2s from asthmatic and control subjects by flow cytometry and ELISA. RESULTS: Dexamethasone (Dex) inhibited (P=0.04) CRTH2 and type 2 cytokine expression by blood ILC2s stimulated with IL25 and IL33...
April 19, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28431580/cripto-1-acts-as-a-functional-marker-of-cancer-stem-like-cells-and-predicts-prognosis-of-the-patients-in-esophageal-squamous-cell-carcinoma
#18
Qiang Liu, Xiang Cui, Xi Yu, Bai-Shi-Jiao Bian, Feng Qian, Xu-Gang Hu, Cheng-Dong Ji, Lang Yang, Yong Ren, Wei Cui, Xia Zhang, Peng Zhang, Ji Ming Wang, You-Hong Cui, Xiu-Wu Bian
BACKGROUND: Esophageal squamous cell carcinoma (ESCC) is highly malignant with highly invasive and metastatic capabilities and poor prognosis. It is believed that the ESCC cancer stem-like cells (ECSLCs) are critical for tumorigenicity, invasion and metastasis of ESCC. However, the properties of ECSLCs vary with different markers used in isolation, so that new and more effective markers of ECSLCs need to be identified. This study aimed to estimate the potentiality of Cripto-1 (CR-1) as an ECSLC surface marker and investigate the clinical significance of CR-1 expression in ESCC...
April 21, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28431402/micrometastasis-of-endometriosis-to-distant-organs-in-a-murine-model
#19
Elham N Samani, Ramanaiah Mamillapalli, Fei Li, Levent Mutlu, Demetra Hufnagel, Graciela Krikun, Hugh S Taylor
Endometriosis is an inflammatory gynecological disorder among reproductive-aged women caused by the engraftment and proliferation of endometrial cells outside the uterus, most commonly in the pelvis. It is thought that the disease arises primarily from retrograde menstruation where cells from the endometrium travel through the fallopian tubes to the peritoneal cavity. However, migration of endometriosis-derived cells to distant organs outside of the peritoneal cavity have not been explored. In the present study, we developed and validated a mouse model of disseminated endometriosis using syngeneic DsRed endometrial tissue introduced into the peritoneum of immunocompetent mice...
April 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430580/expression-status-of-folate-receptor-alpha-is-a-predictor-of-survival-in-pancreatic-ductal-adenocarcinoma
#20
Lei Cai, Theodoros Michelakos, Cristina R Ferrone, Liyuan Zhang, Vikram Deshpande, Qi Shen, Albert De Leo, Teppei Yamada, Gong Zhang, Soldano Ferrone, Xinhui Wang
Pancreatic ductal adenocarcinoma (PDAC) has one of the poorest prognosis among malignancies. Thus, the identification of markers useful in developing innovative diagnostic and therapeutic methods is an imperative need. Folate receptor alpha (FRα) has been associated with prognosis in several cancers and has served as a target of novel anti-tumor therapies. However, FRα expression in PDAC and its correlation with the clinical course of the disease has not been thoroughly investigated. In this study, we analyzed FRα expression in 140 PDAC specimens and 7 PDAC cell lines in order to define the significance of FRα expression in PDAC and its potential role as a target for immunotherapy...
April 5, 2017: Oncotarget
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