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Innovative technology that enables RNAi in difficult to transfect cells
Christina Yamada, Kathryn Robinson, Allison St. Amand, Zaklina Strezoska, Greg Wardle, Anastasia Khvorova, Devin Leake

Investigations at Dharmacon have led to the development of innovative siRNA molecules that can be delivered into difficult-to-transfect cells without additional lipid reagents, virus, or instruments. This technology, Accell siRNA reagents, enables gene knockdown for functional genomic studies in a wide variety of cell types. In some instances, cells can be continuously dosed with Accell siRNAs to enable target gene knockdown for extended durations.

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Modelling CLL cell and T-cell Migration in a Dynamic Circulating Model of CLL
Elisabeth Walsbyl, Paul Brennan', Guy Pratte, Andrea Buggins3, Tanja N Hartmann'', Chris Fegan1 and Chris Pepper'

We have recently developed a novel circulating model of chronic lymphocytic leukaemia (CLL) that mimics the transient interactions that take place between circulating lymphocytes and vascular endothelium. Here we show that both normal and malignant lymphocytes actively underwent transendothelial migration.

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Measuring Antitumor Effect of c-Myr-Max heterodimerization inhibitor 100258-F4 on Ovarian Cancer Cells using Cellometer Imaging Cytometry
Leo L. Chan, Jiandong Wang, Xiaoli Ma, Hannah M. Jones, Fang Song, Weiyuan Zhang, Victoria L. Bae-Jump, Chunxiao Zhou

The effect from the c-Mycinhibitor 100258-F4 was clearly observed from the G0/G1 cell cycle arrest and the increase in early and late apoptotic cell. The Cellometer method can measure fluorescent cell-based assays such as cell cycle, apoptosis, protein expression, autophagy and viability. The ability to export the data to FCS Express facilitates simple data analysis and reporting to generate results for publications.

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Quantification of Natural Killer Cell-Mediated Cytotixicity using Celigo Imaging Cytometry
Leo L. Chan, Srinivas S. Somanchi, Kelsey Rosbach, Dean A. Lee

Time-course tracking of % lysis eliminates multiple controls & the effect of non-uniform cell seeding in the final cytotoxicity calculation. The # of cells used is less than the cells needed for Release assays & Flow Cytometry. Flow cytometry & Release assays require a seeding density of 100K target cells increasing the number of effector cells to the millions. The visual observation of ADCC or CDC on the images can be convincing to conclude the functionality of antibodies or complements.

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A rapid 3D tumor spheroid analysis method using the Celigo Imaging Cytometry
Leo L. Chan, Scott Cribbes, Sarah Kessel, Olivier Dery, Catherine Swingler, Dmitry Kuksin, Tim Smith, Jean Qiu, Maria Vinci, Lisa Patterson, Sue Eccles

• Celigo Imaging Cytometer is a versatile and powerful tool for 3D tumorspheroid analysis
• Assays such as measuring optimal seeding density for forming tumorspheroids and viability measurement have been demonstrated
• Advanced assays such size measurement, growth inhibition, invasion into matrigel®, migration on to collagen and HUVEC, and tissue invasion that have been performed by manual microscope observation can now be easily quantified using the automated imaging cytometry method

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Development of a novel xeno-free medium for feeder-free culture of human stem cells
Annand R; Okuda Y; Inamura M

A new xeno-free medium (ReproXFTM) has been developed for feeder-free culture of stem cells.

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Novel culture medium using a small-molecule agonist of thrombopoetin receptor
Hondo M1; Nishino T2; Inamura M1

ReproHSC medium for the culture of hematopoietic stem cells. facilitates the culture and expansion of CD34+/CD38- cells that retain their HSC properties

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A novel multi-organ microfluidic chip: on the way to the complexity of a living organism
Timur R Samatov, Svetlana A Tonevitskaya, Natalya Pulkova, Evgeny A Tonevitsky

A novel physiologically relevant multi-organ chip is developed capable of culturing up to six different organotypic models integrated into a single microfluidic circuit.

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Continuous Collection of Stem Cells from a Human Placenta Perfusion Co-Culture
John J.S. Cadwell & James C. Hardy

The potential for human placenta-derived cells to produce stem cells in a hollow fiber bioreactor co-culture system was investigated.

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Identification of microRNA targets using microRNA modulation techniques and gene expression arrays
Emily M. Anderson, Maren Mayer, Kevin Sullivan, Barbara Robertson, Žaklina Strezoska, Annaleen Vermeulen, and Devin Leake

By examining the overlap of messages down-regulated by miRNA mimics and up-regulated by miRNA inhibitors, we robustly identify miRNA-regulated messages, many of which have canonical seed matches and some which are not identied by standard target prediction programs.

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Scientific News
Bacteria Cooperate to Repair Damaged Siblings
New research unearths the unique ability of a certain type of soil borne bacteria to repair nearby damaged cells.
UB and Roswell Park receive $1.85M Grant to Launch Stem Cell Research Program
The program will bring together 18 faculty members to advance translation of stem cell breakthroughs into cell therapies.
Solving Streptide from Structure to Biosynthesis
Researchers reveal new information about how bacteria communicate via the protein, streptide.
Bioprinting in 3D: Looks Like Candy, Could Regenerate Nerve Cells
Tolou Shokuhfar and colleagues are developing techniques using 3D bioprinting to generate human tissue.
Possible Treatment for Lethal Pediatric Brain Cancer
NIH-funded preclinical study suggests epigenetic drugs may be used to treat leading cause of pediatric brain cancer death.
Simpler Method to Grow Stem Cells
University of Texas at El Paso study shows that stem cells can grow with dead, or fixed, feeder cells.
A New Wrinkle For Cell Culture
Researchers at Brown University have developed an advanced technique for cell culturing that uses sheets of wrinkled graphene to mimic the complex 3-D environment inside the body.
A New Lease on Life for Prostate Tissue
Rutgers Cancer Institute of New Jersey research results in development of organoid prostate models
A New Tool for Understanding ALS: Patients’ Brain Cells
Researchers create a free public library of versatile stem cells from ALS patients.
MIPT Researchers Grow Cardiac Tissue on “Spider Silk” Substrate
Researchers discuss their findings in an article that has recently come out in the journal PLOS ONE.
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