Researchers at the University of California, Davis have developed a targeted gene editing system that reactivates the silenced CDKL5 gene by precise epigenetic modulation to treat CDKL5 deficiency disorder (CDD).

Innovative cell lines enabling precise genetic modifications to advance research in gene function, disease modeling, and potential therapeutic interventions.

Achieving precise and tunable control over endogenous gene expression in eukaryotic cells remains a significant challenge, particularly for therapeutic applications or detailed biological studies where fine-tuning is required rather than complete on/off switching. This innovation, developed by UC Berkeley researchers, addresses this by providing a novel, programmable method for transcriptional tuning. The innovation is a two-domain fusion protein comprising the transcriptional repression domain (TRD) of the methyl-CpG-binding domain (MBD) protein MeCP2 linked to a dead Cas9 (dCas9) domain. When combined with a single guide RNA (sgRNA) that targets a specific endogenous gene, this fusion protein partially inhibits, or "tunes," the expression of that gene. Unlike traditional methods like RNAi or full CRISPR interference (CRISPRi), which often aim for complete knockdown, this system offers a highly specific and titratable way to dial down gene expression, providing a distinct advantage in studies requiring subtle modulation of gene dosage or for developing dose-dependent therapeutic strategies.

A novel dendronized polypeptide architecture for efficient and safe mRNA delivery, suitable for anti-tumor immunotherapy.

The invention is a self-selection DNA editing system for modifying microbial communities. It consists of a gene editing tool and a donor DNA with a bacteriocin unit. This unit is integrated into the target cell's genome, providing a survival advantage and ensuring that only the successfully modified cells proliferate. This allows for precise, targeted editing of microbial populations in various settings, including in vitro and in vivo environments.

A method for improving the efficiency of genome editing in Gram-negative bacteria using a CRISPR-associated transposase (CAST) system. Traditional methods for genetic modification in these bacteria are often inefficient and complex. Researchers at UC Berkeley have developed a system that combines a CAST complex, which recognizes specific DNA sequences and inserts a transposon, with a CAST modulator. This modulator significantly enhances the system's editing efficiency, making it a powerful tool for precise and efficient genetic manipulation in Gram-negative bacteria.

When model organisms are exposed to chemicals, resulting mutagenesis can provide insights on the chemical’s genotoxicity, which is an indicator of the chemical’s potential to cause cancer or birth defects. In fact, direct mutagenesis assays in bacteria are one of the three assays required by regulatory agencies for demonstrating the safety of potential clinical compounds. Mutagenesis assays are also used to study various DNA processes, such as replication, repair, damage tolerization, and homeostasis.

Researchers at the University of California, Davis have developed a method to stop bacterial growth while maintaining desirable metabolic functions for therapeutic and biotechnological applications.

Researchers at UC Berkeley have developed a machine learning model that can aide in the design of more efficient viral vector libraries.Directed evolution of biomolecules to generate large numbers of randomized variants is an important innovation in biochemistry. This methodology can be applied to myriad biomolecules of interest, including viruses. In the case of viral variants, this method may be used to select viral variants or viral vectors with specific properties such as tissue type specificity, increased replication capacity, or enhanced evasion of the immune system. However, testing large numbers of viral variants for specific properties is inherently time consuming and limits potential innovation.The inventors have devised a new method to optimize the functionality of viral libraries with many random variants. Specifically, this methodology comprises a machine learning model that systematically designs more effectively starting libraries by optimizing for a chosen factor. This method works by using a training set of viruses that can be evaluated experimentally for the chosen optimization factor (e.g., packaging efficiency, infectivity of a cell line, etc.). These experiments will then provide a fitness value for each viral variant, and the fitness value matched with viral variant sequences will in turn be used in a supervised machine learning model to select sequences for a larger library that is optimized for the chosen factor.

The ability to precisely control gene expression is fundamental to advancing biotechnology and medicine, yet designing functional synthetic promoters for eukaryotic cells remains a complex challenge. UC Berkeley researchers have developed a high-throughput platform for the generation and selection of synthetic transcriptional promoters. This technology utilizes expansive libraries of recombinant expression vectors to identify promoter sequences with optimized performance characteristics. By linking promoter sequence to measurable expression outputs, the method allows for the rapid discovery of highly functional, custom-tuned regulatory elements that are compatible with a variety of eukaryotic host systems.

The production of high-quality viral vectors is a foundational requirement for modern gene therapy and molecular biology research. Researchers at UC Berkeley have developed novel compositions and methods for the production of recombinant adeno-associated virus virions. These methods provide a streamlined approach to assembling the necessary genetic components and host cell environments required to generate stable and functional viral particles. By optimizing the specific compositions used during the production process, the technology improves the efficiency and scalability of virus generation, ensuring that the resulting virions meet the rigorous standards needed for therapeutic and research applications.

Current methods for ribonucleic acid (RNA) delivery are inefficient and toxic. UCI researchers have synthesized a new delivery system that is not only efficient and non-toxic but also allows the delivery of RNAs of multiple shapes and sizes.

UCLA researchers in the Department of Medicine and the Department of Surgery have developed a novel lentiviral vector that expresses a codon-optimized sequence of a T cell receptor (TCR) specific for the cancer-testis antigen NY-ESO-1 as well as a positron emission tomography (PET) reporter and suicide gene HSV1-sr39tk for use in adoptive T cell therapy for cancer treatment.

Researchers at the University of California, Davis have cultured a titi monkey adenovirus (TMAdV,) and used the virus to develop a model of human respiratory disease.

Echo Particle Image Velocimetry (PIV) is a non-invasive ultrasonic technique used to image blood flow in patients. Particles that may be used as flow tracers with PIV include currently FDA approved contrast agents. Currently, 2D blood flow information obtained by echocardiography is widely used to diagnose cardiac dysfunction. While this 2D echocardiography method is useful, it does not provide sufficient accuracy for characterizing complex 3D flows in the heart. For example, it is difficult to accurately image flow patterns in the right heart or hearts of patients with congenital defects or quantify mitral regurgitation. Researchers at the University of California, Irvine have developed a new method for multi-planar 3D reconstruction of 2D Echo Particle Image Velocimetry (PIV) data. This method may be used to image and assess blood flows from the heart chambers in real-time therefore allowing 4D imaging of blood flows in the heart.

Brief description not available

Eukaryotic promoters are regulated by a combination of sequence-specific DNA-binding proteins, general transcription initiation factors, and associated accessory factors. The sequence-specific transcription factors can be divided into several classes on the basis of the activation domains they posess. This disclosure relates to several Human cDNA clones and/or expression vectors encoding c-jun, AP2, SP1, and CTF/NF1 TAF genes. Reference; B.D. Dynlacht, et al., Isolation of Coactivators Associated with the TATA-Binding Protein That Mediate Transcriptional Activation. 1991. Cell 66:563-76

Radio antennas must maintain their paraboloid shape and directional positioning in order to work properly. However wind can load the antenna dish and cause it to lose its shape and position. To address this situation, researchers at UC Berkeley have developed a support system that strengthens antenna dishes and provides several structural enhancements. The support system consists of reinforcements that enable firm radial and torsional support as well as an optimal amount of axial flexibility and support. This design allows for a large open area so that azimuth and elevation-bearing systems can be positioned near to the reflector vertex. This positioning enables lower loads and less structural requirements for the pedestal and drives.

Log-periodic antennas are capable of transmitting and receiving signals across a large bandwidth. However, their bandwidth range can be too large for the entire signal to be simultaneously digitized. To address this issue, researchers at UC Berkeley have developed an innovative feed for broadband antennas. This feed converts the broadband radio signals such that they can be more readily digitized and processed.

This invention makes available plasmids designed to express derivatives of Saccharomyces cerevisiae Ste5 protein tagged with an N-terminal in-frame (His)6 tract and a c-Myc epitope recognized by the monoclonal antibody, 9E10, and /or fused in-frame at either its N- or C-terminus to the Aequoria victoria Green Fluorescent Protein (GFP), or mutant derivatives of Ste5 in these contexts. References: Hasson et al. 1994. Mol. Cell Biol. 14:1054-65 Inouye et al. 1997. Science 278:103-6 Inouye et al. 1997. Genetics 147:479-92 Sette et al. 2000. Mol Biol. Cell 11:4033-49 Bardwell et al. 2001. J. Biol. Chem. 276:10374-86 Kunzler et al. 2001. Genetics 157:1089-105

To assay transcription from promoters under the control of Filamentous Response Elements (FREs) which comprise binding sites for the transcription factors Ste7 and Tec1, investigators at UCB constructed a plasmid (YEpU-FTyZ) in which expression of the E. coli lacZ gene is driven by the FRE of the transposon Ty1. Reference; Cook et al. 1997 Nature 390:85-8.