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New Way to Detect DNA Changes Researchers from the University of Illinois have identified a new, cheaper and easier way to detect methylation (alterations) of DNA. By measuring the methylation... Read More Researchers from the University of Illinois have identified a new, cheaper and easier way to detect methylation (alterations) of DNA. By measuring the methylation of certain DNA sequences, doctors can predict the likelihood of cancers and other disorders. This early detection has the potential to save lives.
Highly Accelerated Image Reconstruction in Medical Imaging Researchers from the University of Illinois have developed a state of the art method that can reconstruct images in better quality, in less time, with fewer scans... Read More Researchers from the University of Illinois have developed a state of the art method that can reconstruct images in better quality, in less time, with fewer scans. They leveraged sparse characteristic of the image data and produced a two step algorithm that learns the patches of the image from the data and subsequently decreases elements in each patch.
Integrated System for Genome Modification in E. coli Dr. Kuhlman from the University of Illinois at Urbana-Champaign has created a new system that provides a single editing tool for a variety of genome modifications... Read More Dr. Kuhlman from the University of Illinois at Urbana-Champaign has created a new system that provides a single editing tool for a variety of genome modifications. This method has the advantage over CRISPR-Cas9 system in not requiring prior modification of the genome and requires only locus-specific primers for genome editing. This technology is an optimized Landing Pad system that can use positive and negative selection to select for insertion, deletion, and knockout events at genomic targets using specific primers contain homology region A, B, and C. This approach provides a powerful tool for manipulating the genome. Benefits The Landing-Pad system can integrate large fragments of DNA, can be targeted anywhere in the genome and ab be applicable to deletions and knockouts as well. Unlike the CRISPR-Cas9 system, this technique does not require a special promoter for gene expression. The Landing-Pad system can target different loci with only locus-specific primer design.
Temperature Independent pH (TIP) Buffers for Use at Low Temperatures Researchers and practitioners in university, industrial and national labs increasingly rely on low temperatures in the development and study of products. For... Read More Researchers and practitioners in university, industrial and national labs increasingly rely on low temperatures in the development and study of products. For example, pharmaceutical companies routinely use low temperatures to study disease targets and markers. The biomolecules are always in buffers. Since the pH of buffers changes dramatically upon lowering temperature, the biolmolecules are not the same pH when they are at the room temperature. The change of pH can dramatically change the structural and functional properties of the biomolecules so that information obtained at low temperature does not reflect its properties at room temperature or physiological temperature. Additionally, since the exact pH buffer at different temperatures is not often predictable, the results obtained using a temperature variable pH buffer cannot easily correlate back to the pH at room temperature. This invention is a new design of pH buffers that show negligible pH change upon cooling to low temperatures, including cryotempatures. This invention solves the problem of significant change in apparent pH of a glycerol solution of common biological buffers upon cooling to cryotemperature. By combining a buffer that increases pH upon cooling with one that decreases pH upon cooling, the apparent pH change upon cooling to cryotemperature is minimized.
New Drugs for Malarial and Bacterial Infections New anti-infectives are required now more than ever as resistance to existing drugs increases in prevalence. Enzymes unique to bacteria or parasites are potential... Read More New anti-infectives are required now more than ever as resistance to existing drugs increases in prevalence. Enzymes unique to bacteria or parasites are potential drug targets with minimal side effects because they are not present in humans. One such source of potential drug targets is the isoprenoid biosynthesis pathway. Many pathogenic bacteria and malaria parasites use isoprenoids in their cell walls, to protect against the human immune system, and for other functions. This pathway is not present in humans and thus is an excellent target for new anti-infective drugs. Scientists from the University of Illinois at Urbana-Champaigns Departments of Chemistry and Biophysics have identified a class of novel chemical entities that are capable of inhibiting two key enzymes, GcpE and LytB, in the isoprenoid biosynthesis pathway. These compounds are able to inhibit the isoprenoid biosynthetic pathway at concentrations far lower than any other known inhibitors and have the potential to treat a wide-range of infectious disease caused by both bacteria and malarial parasites. In addition, it may be possible to use these compounds for the treatment of cancers, via immune system activation. Details This invention includes a class of novel chemical entities composed of similar geometries and bonds. They inhibit through a unique organometallicinteraction that has not been previously described. Applications Currently, the compounds are being evaluated for their ability to act as: Broad spectrum anti-infectives Cytotoxic cancer drugs Other compounds produced using similar chemistry may have a wide range of medical applications Benefits Novel Mechanism: These compounds act on the isoprenoid pathway using a chemical interaction that has not been previously described. Continued work on these compounds is designed to identify new applications of this interaction, beyond anti-infectives.
Electronic Tuning Of Site Selectivity For Complex Molecule Synthesis Researchers from the University of Illinois have developed a method for selectively derivatizing complex natural molecules such as Amphotericin B. The technology... Read More Researchers from the University of Illinois have developed a method for selectively derivatizing complex natural molecules such as Amphotericin B. The technology could allow for greater regio-control over current synthetic methods.
Novel Use for Personal Glucose Meters University of Illinois researchers have identified a new use for hand-held glucose meters to detect a variety of new disorders. By measuring the concentration of a... Read More University of Illinois researchers have identified a new use for hand-held glucose meters to detect a variety of new disorders. By measuring the concentration of a certain cofactor, the glucose meter can correlate the reading to other non-diabetes diseases.
Microfluidic Chromatin Immunoprecipitation Device for Epigenomic Analysis Researchers from the University of Illinois have created a process for the epigenomic analysis of single cells. This process combines the uses of single cell... Read More Researchers from the University of Illinois have created a process for the epigenomic analysis of single cells. This process combines the uses of single cell microfluidics and chromatin immunoprecipitation (ChIP) for the analysis of DNA modifications in single cells.This technology has the potential to greatly decrease the number of cells needed from a biopsy to test for different cancers. It may also allow the study of traveling cell cancers that are only present in very small almost undetectable quantities.
FRET Based High-Throughput Screening Advanced molecular imaging tools combined with investigative tools like biochemical and cell based assays have thepotential to unravel complex molecular processes... Read More Advanced molecular imaging tools combined with investigative tools like biochemical and cell based assays have thepotential to unravel complex molecular processes. These tools combined with high throughput screening can significantly impact diagnostics for cancer screening and accelerate drug discovery. These inventions are two new Fluorescence Resonance Energy Transfer (FRET) biosensor pairs, one composed of two new colors, mOrange2 and mCherry and the other composed of a modified high-sensitive ECFP/YPet pair that can significantly enhance the dynamic range of a variety of biosensors. The ECFP/YPet can detect signaling events with high spatio-temporal resolutions which makes it an ideal readout indicator for high throughput screening. FRET technology and genetically encoded FRET biosensors are very useful in detecting active molecular events inlive cells with high temporal and spatial resolutions. FRET occurs when two flurophores are in proximity with the emission spectrum of the donoroverlapping with the excitation spectrum of the acceptor. To date, the most popular FRET pair is cyan and yellow fluorescent proteins (CFP and YFP). The new FRET biosensor pairs mOrange2/mCherry are proteins with different colors and spectrally distinctive from the CFP/YFP pair. This invention opens up the possibility of lighting two diagnostic biomarkers in the same cell e.g., cancer cells, thus providing a double criterion high-fidelity assay to differentiate cancer vs. normal cells. To provide proof-of-concept that mOrange2 and mCherry are suitable as novel FRET biosensors, they were operably linked to the protein recognition sequence of MMP-MT1. MMP-MT1 is an enzyme belonging to the matrix metalloproteinase family that has known roles in cancer metastasis. The basis of this assay is that when MT1-MMP is inactive, the mCherry and mOrange2 and positioned in proximity and favor a strong FRET between the two moieties. Indeed, in-vitro assays established that the mOrange/mCherry pair can serve as a reliable and sensitive indicator of the status of MT1-MMP activation and can potentially be applied to other biomarker assays. The ECFP/YPet pair provides a high-sensitive biosensor for the visualization of molecular hierarchy at different subcellular locations inlive cells. In-vitro assays revealedthat the ECFP/YPet pair exhibits significantly enhanced dynamic range of the MT1-MMP biosensor compared to currently available CFP/YFP FRET pairs. When quantified, the ECFP/YPet pair showed a 570% change (% change in basal level upon stimulation of MT1-MMP) when compared to only 90-100% in existing FRET pairs. The ECFP/YPet pair has also been successfully applied to other classes of proteins, like kinases, that are important therapeutic targets in human cancer. These and other genetically engineered biosensors can serve as a research tool to monitor different signaling cascades in live mammalian cells with high sensitivity. The developed MT1-MMP biosensor and potentially other protein biosensors can provide a powerful tool for the spatiotemporal imaging of protein functions in cancer development e.g. detection of circulating tumor cells (CTCs). Furthermore, these biosensors can serve as an excellent high-throughput reporting system forthe detection of cancer and the development of inhibitors for cancer therapeutics. Benefits The novel mOrange2/mCherry pair presents a method to simultaneously visualize two active signaling events in the same cell when combined with existing FRET pairsThe ECFP/YPet pair can serve as a high-sensitive biosensor with significantly enhanced dynamic ranges compared to existing CFP/YFP FRET pairs. The ECFP/Ypet pair can be operably linked to any protein recognition sequence to detect activity of that protein in live cells. The pair also includes a positively charged tag which allows 100% efficiency ofdetection. This invention demonstrates an ECFP/Ypet pair operably linked to MT1-MMP, a tumor metastasis biomarker, to accurately detect circulating tumor cells in blood samples.
Ionic Helical Polypeptides - Non-Viral Gene Delivery with Improved Transfection Efficiency Tremendous potential exists for helical polypeptides that are water soluble (ionic) and remain stable at physiological conditions,... Read More Tremendous potential exists for helical polypeptides that are water soluble (ionic) and remain stable at physiological conditions, variable environmental conditions including pH fluctuations, temperature changes, and in the presence of denaturing agents for gene delivery and cell-membrane penetration over commercially available products. Libraries of helical polypeptides are screened for desired traits, i.e. efficient gene transfection compared to standard transfection reagents.

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