CRISPR Geneome Editing Blogger - CRISPR Gene Editing New - EDITGENE

Overview of the VEGF Signaling Pathway The VEGF (Vascular Endothelial Growth Factor) signaling pathway is a key regulator of angiogenesis, playing a critical role in both physiological and pathological conditions. It promotes the orderly formation of new blood vessels by regulating endothelial cell (EC) proliferation, migration, and survival. The VEGF family consists of multiple ligands, among which VEGF-A is the most potent driver of angiogenesis. VEGF-A isoforms, generated through alternative splicing, exhibit distinct biological properties: VEGF-A165: the most abundant isoform with strong pro-angiogenic activity and heparin-binding capability VEGF-A121: highly diffusible but with relatively lower activity VEGF-A189: tightly binds to the extracellular matrix, forming localized concentration gradients VEGF-B and PlGF (Placental Growth Factor) primarily bind to VEGFR-1, contributing to metabolic regulation and pathological angiogenesis VEGF-C and VEGF-D are synthesized as precursors an...

The TP53 gene , also known as the p53 gene, is one of the most critical tumor suppressor genes in the human genome. Discovered in 1979 and recognized for its tumor-suppressive function in 1989, TP53 has since been regarded as the “guardian of the genome” and remains a central focus of cancer research. Under normal physiological conditions, the TP53 gene functions as a tightly regulated stress-response hub . The p53 protein encoded by the TP53 gene is constantly produced but also rapidly degraded. Upon DNA damage, replication stress, or metabolic imbalance, p53 becomes stabilized and activated, allowing it to orchestrate cell fate decisions. Rather than simply inducing apoptosis, p53 exerts a context-dependent regulatory role: In response to mild damage, p53 induces cell cycle arrest through transcriptional activation of targets such as p21, allowing time for DNA repair. Under moderate stress, p53 promotes DNA repair pathways and antioxidant responses. When damage is irreversible, ...

In a healthy state, cell growth, division, and death are precisely regulated. However, when key regulatory pathways malfunction, cells may escape this "command system," proliferating continuously and evading immune clearance, ultimately leading to disease—particularly tumors. As one of the world's leading malignancies, lung cancer has a complex pathogenesis rooted in the imbalance of cell growth regulatory systems. These imbalances are often genetic. For instance,  EGFR point mutations  allow the EGFR protein to activate automatically without the need for external ligand stimulation, magnifying downstream signals and leading to uncontrolled cell proliferation. EGFR is a receptor tyrosine kinase located on the cell membrane that regulates cell proliferation, differentiation, and survival across various tissues. Under normal conditions, when growth factors bind to EGFR, it triggers receptor dimerization and activates its kinase activity. This initiates a series of...

  CRISPR library screening   is a powerful high-throughput method for gene analysis, leveraging the CRISPR/Cas9 system. This approach involves constructing a library containing thousands of sgRNAs, which are inserted into lentiviral vectors and used to infect target cells at a low multiplicity of infection (MOI). This ensures that each cell receives only one sgRNA, enabling accurate functional gene screening. In this article, we highlight the top three most popular libraries of the month and share key research papers to provide guidance, insights, and support for advancing your scientific studies. I. Sequential genome-wide CRISPR-Cas9 screens identify genes regulating cell-surface expression of tetraspanins Original Link: https://doi.org/10.1016/j.celrep.2023.112065 Four-transmembrane proteins belong to a superfamily of membrane proteins. They were first identified while searching for new cell surface antigens in mammalian cancer cells. Currently, 33 members of this four-trans...

In current cancer treatment, inducing tumor cell to apoptosis is a key strategy, since tumor cells gain uncontrolled proliferation ability by mechanism of inhibiting normal apoptosis. Gene editing technology, especially the CRISPR-Cas9 system, has received widespread attention due to its ability to precisely regulate the cellular functions. However, the precise control of the system in human body still faces challenges. Combined with magnetothermal therapy, its high permeability and low toxicity can be utilized to provide a new cancer treatment method by controlling the thermal effects and synergistically utilizing CRISPR-Cas9 technology. This magnetothermal - gene editing synergistic therapy demonstrates the promising therapeutic potential and provides a new strategy for precision medicine in cancer. Recently, a research paper entitled Magnetothermal activated gene editing strategy for enhanced turbine cell apoptosis, was published in Journal of Nanobiotechnology (Top of Zone 1, if: 1...

  Prime editing is an improved gene editing technology based on the CRISPR/Cas system to achieve precise fragment insertion, deletion, and arbitrary substitution of bases at the target site of the genome, with higher accuracy and lower error rate. When it came out, it attracted widespread attention from many scientific researchers, and extensive research was conducted on the treatment of hereditary diseases, gene mutation diseases, and cancers. For example, correcting the mutant genes to treat genetic diseases or editing oncogenes in cancer cell genomes to prevent them from growing and spreading. The following three articles are about the clinical treatment of Prime Editing, bringing you the latest research trends.   Prime editing helps in the treatment of β - thalassemia, and no off-target  effect was detected         β - thalassemia is a hematopoietic system disease caused by a single gene mutation in the hemoglobin (HGB) subunit beta gene (HBB), res...