Comparison of Sonication Patterns and Microbubble Administration Strategies for Focused Ultrasound-Mediated Large-Volume Drug Delivery

Comparison of Acoustic Patterns and Microbubble Delivery Strategies in Large-Volume Drug Delivery Mediated by Focused Ultrasound for Blood-Brain Barrier Opening Background Diffuse Intrinsic Pontine Glioma (DIPG) is the most common and lethal brainstem tumor in children. Due to the usually intact blood-brain barrier (BBB) in DIPG, drug penetration i...

CRISPRi-based Circuits to Control Gene Expression in Plants

CRISPRi-based Circuits to Control Gene Expression in Plants

Academic Background In the field of plant biotechnology, traditional gene manipulation methods focus on producing the desired phenotypes and cellular activities through continuous transgene expression. However, strong continuous promoters may lead to gene silencing, metabolic burdens, or other adverse effects on yield, preventing the full realizati...

Development of Multiplexed Orthogonal Base Editor (MOBE) Systems

In recent years, with the rapid development of gene editing tools, especially the introduction of the CRISPR-Cas9 system, it has become possible to precisely modify specific DNA sequences. Currently, the introduction of single-nucleotide variants (SNVs) as a powerful tool for studying gene function and disease associations is particularly important...

Complete Substitution with Modified Nucleotides in Self-Amplifying RNA Suppresses the Interferon Response and Increases Potency

Introduction Under the influence of the COVID-19 pandemic, mRNA vaccine technology has made significant advances. However, its short half-life and high dosage requirements have led to side effects and accessibility issues. To overcome these challenges, self-amplifying RNA (saRNA) has become a research hotspot. saRNA utilizes RNA-dependent RNA polym...

In Vivo AAV-SB-CRISPR Screens of Tumor-Infiltrating Primary NK Cells Identify Genetic Checkpoints of CAR-NK Therapy

AAV-SB-CRISPR Screening Identifies Genetic Checkpoints in Tumor-Infiltrating Primary Natural Killer Cells for CAR-NK Therapy With the rapid advancement of biotechnology and gene editing technologies, increasing attention is being paid to enhancing the clinical potential of natural killer (NK) cells in cancer therapy. Despite their potential in clin...

Programming Tumor Evolution with Selection Gene Drives to Proactively Combat Drug Resistance

Engineering Selective Gene Drives to Steer Tumor Evolution to Counteract Drug Resistance As tumors evolve, targeted therapies against cancer often fail due to the evolution of drug resistance. This study demonstrates a way to manipulate tumor evolution repeatedly to design therapeutic opportunities, even in the presence of genetic heterogeneity. We...

Patient-derived mini-colons enable long-term modeling of tumor–microenvironment complexity

Patient-derived mini-colons enable long-term modeling of tumor–microenvironment complexity

Long-term Model for Studying Tumor Microenvironment Complexity: Patient-derived Mini-colons Background: The interaction between tumors and their surrounding microenvironment has profound implications for cancer development and treatment. However, existing in vitro tumor models lack the ability to capture these complex interactions. To address this ...

High-yield Porphyrin Production Through Metabolic Engineering and Biocatalysis

High-yield Porphyrin Production Through Metabolic Engineering and Biocatalysis

This study was published in the journal Nature Biotechnology, with the doi 10.1038/s41587-024-02267-3. The corresponding authors are Haihong Chen and Yaohong Wang from East China University of Science and Technology, and the publication date is April 26, 2024. The article investigates the high-yield production of chlorophyll through metabolic engin...

Targeted depletion of PD-1–expressing cells induces immune tolerance through peripheral clonal deletion

Inducing Immune Tolerance through Peripheral Clonal Deletion Targeting PD-1 Expressing Cells Background Introduction The establishment of T-cell receptor (TCR) repertoire through thymic negative selection is a key process for achieving self-tolerance and acquired tolerance post-organ transplantation. However, it remains unclear whether the specific...

YAP Represses the TEAD–NF-κB Complex and Inhibits the Growth of Clear Cell Renal Cell Carcinoma

YAP Inhibits the TEAD-NF-κB Complex and Suppresses the Growth of Clear Cell Renal Cell Carcinoma Research Background Conventionally, the Hippo signaling pathway inhibits YAP-TEAD transcriptional complexes by keeping the transcriptional coactivator YAP phosphorylated and retained in the cytoplasm, thereby impeding tumor growth. However, researchers ...