... [3] For cell biologists, the major impact has been in cell separation, single -cell resolution of the dynamics of gene expression, and insights into how mechanical forces applied to individual cells ... encountered by a polarized cell In traditional mass culture, cells align in random fashion, and although matrix coatings on tissue -culture plastic can be used to line cells up relative to the matrix, ... microfluidics culture conditions superior to those of traditional mass cell culture? Stem -cell fate (growth, death, differentiation, migration) is highly dependent on environmental cues, but the usual cell...
Ngày tải lên: 06/08/2014, 19:21
... models for stem -cell research They present a number of advantages, including the fact that a large pool of stem cells is available throughout the lifetime of each individual; the stem -cell pool ... these remarkable stem cells However, current research in stem -cell biology is providing increasing evidence that the behaviors and fates of stem cells are not inherent, cell- autonomous properties, ... Alvarado A: Molecular analysis of stem cells and their descendents during cell turnover and regeneration in the planarian Schmidtea mediterranea Cell Stem Cell 2008, 3:327-339 Pfister D, De Mulder...
Ngày tải lên: 06/08/2014, 19:21
Báo cáo y học: "A full menu for stem-cell research" pps
... adult stem -cell populations in skeletal muscle His group found that within the satellite -cell compartment in human muscle, 1% of the cells also coexpress endothelial markers; these cells have ... Paris, France) described the successful use of skeletal muscle satellite cells as an alternative for cell- transplantation therapy for heart failure After successful long-term experiments in animal ... between the host and grafted cells Further analysis is required if we are to identify any other, more appropriate, sources of stem cells Development of a cell- based therapy for liver failure and inherited...
Ngày tải lên: 14/08/2014, 14:21
The search for stem cell in human breast milk
... 127 5.4.1.5 5.5 Mid Density Cell Cultures 128 Methylcellulose Culture of Selected Population 129 5.5.1 Positive Controls for Methylcellulose Cultures 129 5.5.2 In Vitro ... 53 2.1.6 Breast Adenocarcinoma Cell Line, MCF-7 53 2.2 Cell Culture 53 2.2.1 Epithelial Cell Culture 53 2.2.2 Mammosphere Culture 54 2.2.2.1 Optimisation ... Neurosphere Culture 57 2.2.3.1 Poly-L-ornithine Coating of Coverslips 57 2.2.4 2.2.5 Culture of Cell Line, MCF-7 58 2.2.6 2.3 Fetal Mesenchymal Stem Cell Culture 58 Methylcellulose...
Ngày tải lên: 11/09/2015, 09:57
ENGINEERING THREE DIMENSIONAL CULTURE PLATFORMS FOR HUMAN ADIPOSE DERIVED STEM CELL THERAPY
... cell delivery strategy for adipose derived stem cell therapy 1.2 Hypothesis The three dimensional cell- microsphere (ADSC-GMs) constructs formed using ADSCs and GMs with strong cell- cell and cell- matrix ... systems for stem cell therapy 20 2.4.1 Effect of mechanical cues on stem cells 21 2.4.2 Effect of biomolecular cues on stem cells 22 2.4.3 Hydrogels for stem cell therapy 23 2.4.4 Microspheres for ... in vitro and seeded on 3D cell culture matrices made of biomaterials to form cell- scaffold constructs In regenerative medicine approach, either aqueous cell suspensions or cell- scaffold constructs...
Ngày tải lên: 09/09/2015, 11:18
Tài liệu Báo cáo khoa học: Properties of ecdysteroid receptors from diverse insect species in a heterologous cell culture system – a basis for screening novel insecticidal candidates docx
... described below After transfection for h, cells were incubated with or without agonists and ⁄ or JHIII for 24 h, cells were harvested, and extracts were processed for the studies The reagents tested ... characterize individual insect EcR–USP heterodimers for their responsiveness to agonists and potentiators Utility of the cell culture as a screening assay for novel agonists DmEcRB2/ DmUSPII LdEcRA/ ... text Extracts from cells grown in culture medium with no added agonist were equalized for gel loading on the basis of b-galactosidase reporter gene activity Densitometry readings for individual signals...
Ngày tải lên: 18/02/2014, 08:20
Guidelines for Human Embryonic Stem Cell Research potx
... the inner cell mass, consisting of only 30-34 cells, was placed into tissue culture Cell lines similar to mES cells were derived after fairly extensive culture and passaging of the cells Cells with ... stem cell lines, so the ability to share cell lines will create greater access for qualified scientists to participate in human stem cell research A uniform set of criteria for deriving hES cell ... of cells It is believed that stem cells also form reservoirs of repair cells to replace cells and tissues that degenerate over the life span of the organism The dual capacity of stem cells for...
Ngày tải lên: 06/03/2014, 15:20
Báo cáo khoa học: Polypyrimidine tract-binding protein is essential for early mouse development and embryonic stem cell proliferation potx
... blue-staining-negative cells to that of total cells Cells (3 · 105) were seeded on growth medium and counted every day for days of culture The circles indicate the values for wild-type cells and the triangles ... in both wild-type cells and the two Ptb) ⁄ ) ES cell clones Scale bar: 100 lm (B) Cell proliferation assay Cells (5 · 104) were seeded (d0) and counted every day for days of culture The proliferation ... defect in cell proliferation of Ptb) ⁄ ) ES cells was due to the loss of PTB expression As we observed no signs of apoptosis (Fig 3D) or massive cell death (Fig 3E) in Ptb) ⁄ ) ES cell cultures,...
Ngày tải lên: 07/03/2014, 00:20
Báo cáo hóa học: " Modulation of the major histocompatibility complex by neural stem cell-derived neurotrophic factors used for regenerative therapy in a rat model of stroke" ppt
... b-actin (forward: 5′-CTA CAA TGA GCT GCG TGT GG-3′, reverse:5′-CAG TCA GGA TCT TCA TGA GG-3′) The thermo-profile was 50°C for and 95°C for 10 min, followed by 40 cycles of 95°C for 15 s, 60°C for ... the left and right forelimbs The sum of foot faults (SOFFF) in the forelimbs is defined as the number of faults of right and left forelimbs, whereas the differentiation of forelimb foot faults ... poly-L-lysine-coated slides To prepare the cells for immunohistochemical staining, cultures of NSC were enzymatically segregated with trypsin After thorough washing, × 105 separated cells suspended in PBS were...
Ngày tải lên: 18/06/2014, 16:20
Báo cáo hóa học: " Varicella-zoster virus ORF 58 gene is dispensable for viral replication in cell culture" pptx
... recombinants were assessed for the property of cellto -cell spread by comparison of plaque sizes Briefly, MRC-5 cells or MeWo cells were infected with approximately 50 PFU of cell- free viruses of rpOka ... mechanisms of VZV Methods Cells and viruses MRC-5 cells were cultured with modified minimum essential medium (MEM) supplemented with 10% fetal bovine serum (FBS) MeWo cells were cultured with Dulbecco's ... MRC-5 cells Plaque sizes after infection with cell- free rpOka and rpOka∆58 are indicated graphically (upper) and in photographs (lower) MRC-5 cells were infected with each cellfree virus and cultured...
Ngày tải lên: 20/06/2014, 01:20
Báo cáo hóa học: "Biocompatible micro-sized cell culture chamber for the detection of nanoparticle-induced IL8 promoter activity on a small cell population" pot
... miniaturized cell culture chambers for permanent noninvasive characterization of individual cells in a cell layer The miniaturization of the cell culture area guarantees the observation of the complete cell ... the cells cultured on polystyrene membranes as it is common in conventional cell culture chambers like 96- Figure Microscopic images of different cell types cultured in the miniaturized cell culture ... the single -cell level but is not suitable for the characterization of adherent cells since the cells need to be in suspension Detachment of the cells from the surface of the cell culture dish...
Ngày tải lên: 21/06/2014, 00:20
Aseptic Technique for Cell Culture pptx
... Technique for Cell Culture 1.3.2 Current Protocols in Cell Biology Prepare and maintain the work area Perform all aseptic work in a clean work space, free from contaminating air currents and drafts For ... needed Cell Culture 1.3.7 Current Protocols in Cell Biology for aseptic work Laminar-flow cabinets create clean working environments (see below); clean, certified cell lines are available from cell ... steps Aseptic Technique for Cell Culture Laminar-flow cabinets Laminar-flow cabinets or hoods have replaced the open laboratory bench for aseptic work in almost all cell culture and microbiology...
Ngày tải lên: 11/07/2014, 21:20
Báo cáo y học: "Hematopoietic stem cell transplantation for systemic lupus erythematosus" ppsx
... also undergo apoptosis [9–11] Therefore, circulating T cells in a healthy person normally possess a T -cell receptor repertoire selected to a self-epitope Immune cells may be viewed as a dynamic ... hematopoietic stem cells are not necessary for re-engraftment While intensely immune suppressive, the regimen is not myeloablative and endogenous hematopoiesis would recover The hematopoietic stem cells are ... stem cells, the transplant protocol allows for infusion of a significantly higher total cyclophosphamide dose (along with ATG), resulting in significantly more intense immune suppression For the...
Ngày tải lên: 09/08/2014, 01:23
Báo cáo y học: "Stem cell transplantation for rheumatic autoimmune diseases" potx
... without stem cell rescue has been tested in SLE and scleroderma patients [37-39] The rationale for that procedure is a rapid eradication of autoreactive effector cells while sparing stem cells because ... studies showing increases in T -cell receptor excision circles and CD31+ T cells and normalisation of new T -cell receptor repertoires [53,54] Allogeneic hematopoietic stem cell transplantation The interaction ... blood stem cell (PBSC) grafts contain more T cells than BM grafts with a preserved CD4/CD8 ratio and a less activated immunophenotype [58] Recovery is significantly faster for CD4 cells, circulating...
Ngày tải lên: 09/08/2014, 10:23
Báo cáo y học: "A mouse embryonic stem cell bank for inducible overexpression of human chromosome 21 genes." ppsx
... repeats were performed for each biological replicate: this comprises gels for E6 and gels for E7 For each clone we ran three replicates for t0 (control) and three replicates for t48 hours Corresponding ... processing, we generated a cell bank of cultured mES cells For years, the importance of mES cells to biology and medicine has been attributed both to their ability to proliferate for an indefinite period ... to Additional file for more general information about these genes) For a subset of the selected genes, there is evidence for the presence of different alternatively spliced isoforms that may differ...
Ngày tải lên: 09/08/2014, 20:22
Báo cáo y học: " Comparative analysis of cell culture and prediction algorithms for phenotyping of genetically diverse HIV-1 strains from Cameroon" pps
... information was collected in the Performa and analyzed Viruses were propagated in PBMC derived from buffy coats and cell free viruses stored in liquid nitrogen for subsequent analysis Ghost cell ... prediction and cell culture assay tributing to the evolving diversity of HIV in this region The tropism of these complex viruses based on cell culture experiments was determined to be R5 for 15/17 ... favorably with cell culture for R5 viruses that were predominant in this region These findings suggest that V3 sequence based co-receptor prediction may potentially be an alternate tool to cell culture...
Ngày tải lên: 10/08/2014, 05:21
Báo cáo y học: "Allogeneic hematopoietic stem cell transplantation for acute leukemia with Gilbert’s syndrome" pptx
... for conditioning; Phenytoin for prophylaxis of busulfan’s side affect Tacrolimus; methotrexate and mycophenolate mofetil (0.5 g twice a day on days to +28) for GVHD prophylaxis; Caspofungin for ... and design of the paper, revised it critically for important intellectual content, and final approval of the version to be submitted Authors’ information QFL, MD, Ph.D, Department of Hematology, ... doi:10.1186/1756-8722-4-9 Cite this article as: Yu et al.: Allogeneic hematopoietic stem cell transplantation for acute leukemia with Gilbert’s syndrome Journal of Hematology & Oncology 2011 4:9...
Ngày tải lên: 10/08/2014, 21:23
báo cáo khoa học: "Current status of haploidentical stem cell transplantation for leukemia" pps
... CY/MeCCNU/ATG CSP/MMF/ MTX short 1.8 220 Not done 55% 47% 2-year 19% for SR 31% for HR 12% for SR 39% for HR 2-year 68% for SR 42% for HR Japan, 2006[39] Journal of Hematology & Oncology 2008, 1:27 ... (NK) cell alloreactivity[7-9]; 3) Easy access to repeat donation of donor cells again, when donor-derived cellular therapy is needed for the treatment and/or prophylaxis of relapse, or for second ... in Aversa's report were 12.8 × 106/kg for CD34+ and 0.01 × 106/kg for CD3+ cells, respectively[18] CD34 positive selection also provided a median 3.2-log B -cell depletion, which helped prevent...
Ngày tải lên: 10/08/2014, 22:20
báo cáo khoa học: "Biomimetic poly(amidoamine) hydrogels as synthetic materials for cell culture" potx
... cell/ Ntot cell × 100, (4) where Npolyg cell is the number of the cells showing the polygonal-like morphology and Ntot cell is the total number of counted cells in each image For the cell adhesion ... water and freeze-dried to obtain the dry weight Tests were performed in water, PBS, cell culture medium and cell culture medium under culture conditions (37°C, 5% CO2) Degradation tests Several ... streptomycin Cells were grown in tissue culture flasks at 37°C in controlled atmosphere (5% CO2) For cell adhesion and proliferation MDCK cells were seeded at a concentration of 104 cells/well...
Ngày tải lên: 11/08/2014, 00:22