CRISPR/Cas9-Based Genome Editing of HSV.

CRISPR/Cas9-Based Genome Editing of HSV. Methods Mol Biol. 2020;2060:169-183 Authors: Velusamy T, Gowripalan A, Tscharke DC Abstract The CRISPR/Cas9 gene editing system is a robust and versatile technology that has revolutionized our capacity for genome engineering and is applicable in a wide range of organisms, including large dsDNA viruses. Here we provide an efficient methodology that can be used both for marker-based and for marker-free CRISPR/Cas9-mediated editing of the HSV-1 genome. In our method, Cas9, guide RNAs and a homology-directed repair template are provided to cells by cotransection of plasmids, followed by introduction of the HSV genome by infection. This method offers a great deal of flexibility, facilitating editing of the HSV genome that spans the range from individual nucleotide changes to large deletions and insertions. PMID: 31617178 [PubMed - in process]
Source: Herpes - Category: Infectious Diseases Authors: Tags: Methods Mol Biol Source Type: research

Related Links:

In this study, we show the ability of U94 to exert its anticancer activity on three different TNBC cell lines by inhibiting DNA damage repair genes, cell cycle and eventually leading to cell death following activation of the intrinsic apoptotic pathway. Interestingly, we found that U94 acted synergistically with DNA-damaging drugs. Overall, we provide evidence that U94 is able to combat tumor cells with different mechanisms, thus attesting for the great potential of this molecule as a multi-target drug in cancer therapy.
Source: Cancers - Category: Cancer & Oncology Authors: Tags: Article Source Type: research
This study sought to investigate what could be learned from how these men have fared. The men were born in 1925-1928 and similar health-related data from questionnaires, physical examination, and blood samples are available for all surveys. Survival curves over various variable strata were applied to evaluate the impact of individual risk factors and combinations of risk factors on all-cause deaths. At the end of 2018, 118 (16.0%) of the men had reached 90 years of age. Smoking in 1974 was the strongest single risk factor associated with survival, with observed percentages of men reaching 90 years being 26.3, 25.7, ...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
In conclusion, there is solid evidence that obesity deregulates cellular mechanisms related to nutrient sensing. Altered Intercellular Communication It is accepted that aging impacts the organism at the cellular level, but also decreases the capacity of cells of an organism to interact. During aging, there is a decreased communication at the neuronal, neuroendocrine, and endocrine levels. Two of the most compelling examples of impaired communication are inflammaging and immunosenescence. The inflammaging phenotype results in elevated cytokines. These cytokines can accelerate and propagate the aging process. T...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
by Jingyun Ji, Xiaona Tang, Wen Hu, Keith A. Maggert, Yikang S. Rong The Pol32 protein is one of the universal subunits of DNA polymerase δ (Pol δ), which is responsible for genome replication in eukaryotic cells. Although the role of Pol32 in DNA repair has been well-characterized, its exact function in genome replication remains obscure as studies in single cel l systems have not established an essential role for Pol32 in the process. Here we characterize Pol32 in the context ofDrosophila melanogaster development. In the rapidly dividing embryonic cells, loss of Pol32 halts genome replication as it specifica...
Source: PLoS Genetics - Category: Genetics & Stem Cells Authors: Source Type: research
Conclusion and Future Perspectives This review illustrates our current knowledge of USP7, including its source and characterization, structure, binding partners and substrates in various biological processes. Besides, how USP7 regulates various aspects of a cell under both normal and pathological states are elaborated in detail. As the processes of ubiquitination and deubiquitination are extremely dynamic and context-specific, a series of studies have linked USP7 to different cancers. The biology, particularly the immune oncology mechanisms, reveal that USP7 inhibitors would be useful drugs, thus it is vital to develop hi...
Source: Frontiers in Pharmacology - Category: Drugs & Pharmacology Source Type: research
Alla S. Koltsova1,2, Anna A. Pendina1, Olga A. Efimova1*, Olga G. Chiryaeva1, Tatyana V. Kuznetzova1 and Vladislav S. Baranov1,2 1D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, Saint Petersburg, Russia 2Department of Genetics and Biotechnology, Saint Petersburg State University, Saint Petersburg, Russia In the present review, we focus on the phenomenon of chromothripsis, a new type of complex chromosomal rearrangements. We discuss the challenges of chromothripsis detection and its distinction from other chromoanagenesis events. Along with already known causes and mechanisms, we introdu...
Source: Frontiers in Genetics - Category: Genetics & Stem Cells Source Type: research
Reena Goswami1, Gayatri Subramanian2, Liliya Silayeva1, Isabelle Newkirk1, Deborah Doctor1, Karan Chawla2, Saurabh Chattopadhyay2, Dhyan Chandra3, Nageswararao Chilukuri1 and Venkaiah Betapudi1,4* 1Neuroscience Branch, Research Division, United States Army Medical Research Institute of Chemical Defense, Aberdeen, MD, United States 2Department of Medical Microbiology and Immunology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, United States 3Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States 4Department of Physiology and Biophysics, Case Western Reserve University, Clev...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
Discussion In this section, we discuss the mechanisms responsible for lymphomagenesis in the various inborn errors of immunity and provide an overview of the treatment. Defects in Immune Responses That Predispose to Lymphomagenesis in PIDDs The complex immune mechanisms and their interplay that predisposes to neoplastic transformation of B or T cells and development of lymphomas in PIDD patients has not been fully elucidated. However, it is expected that the etiology in most cases is multifactorial and related to a dynamic regulation of immune response and environmental triggers (Figure 3). An underlying intrinsic susce...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
In this study, we extended our previous joint gene analysis framework to joint gene set analysis framework. Base on the assumption that similar disease tends to share similar disease-related genes and pathways (Carson et al., 2017; Qin and Lu, 2018), we developed two joint gene set analysis frameworks aiming at improving identification power of enriched gene sets by borrowing different levels of information from other similar diseases. Compared with previous joint gene analysis framework, we unified DE gene/pathway statistic modeling through a two-component beta-uniform mixture model of p-values and combined the model with...
Source: Frontiers in Genetics - Category: Genetics & Stem Cells Source Type: research
Conclusions OCB are important biomarkers that can support MRI diagnostics and help to avoid false-positive MS diagnoses. Therefore, the revised McDonalds criteria have increased the importance of the OCB. New biomarkers such as AQP4 have now established themselves in clinical practice, and others such as Anti-MOG and NfL are about to enter clinical routine. An important focus in the search for new biomarkers is the monitoring of therapy efficacy and the prediction of severe side effects. Many other CSF molecules such as CHI3L1, IL-6, or CXCL13 show potential as markers for clinical practice, but further research is nee...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
More News: Gastroschisis Repair | Genetics | Herpes | Infectious Diseases