Vaccination of Nonhuman Primates Elicits a Broadly Neutralizing Antibody Lineage Targeting a Quaternary Epitope on the HIV-1 Env Trimer

Medicine, Infectious Diseases, Life Sciences, Cell Biology, Biochemistry, Immunology, Microbiology,
Nonhuman Primates   HIV-1 Env Trimer   Broadly Neutralizing Antibodies   Quaternary Epitope   Vaccination  

1. Research Background The envelope glycoprotein (Env) of human immunodeficiency virus type 1 (HIV-1) is the primary target of neutralizing antibodies, but its high variability poses challenges for vaccine development. Broadly neutralizing antibodies (bnAbs) are rare in natural infections and typically require years to emerge. Although Env trimer m...

DDX24 Spatiotemporally Orchestrates VEGF and Wnt Signaling During Developmental Angiogenesis

Medicine, Life Sciences, Cell Biology, Biochemistry, Immunology, Genetics,
angiogenesis   endothelial cells   spatial transcriptomics   VEGF   DDX24  

Research Background Vascular system development is a highly precise regulatory process involving two key stages: vasculogenesis and angiogenesis. Although the VEGF (vascular endothelial growth factor) and Wnt signaling pathways have been confirmed to regulate vascular development in the peripheral and central nervous systems (CNS), respectively, th...

NF-κB-Mediated Developmental Delay Extends Lifespan in Drosophila

Medicine, Rheumatology and Immunology, Endocrinology, Life Sciences, Cell Biology, Immunology, Genetics,
developmental delay   lifespan extension   NF-κB signaling   innate immunity   Drosophila  

1. Research Background Aging has long been viewed as a gradual decline in physiological function with age. However, mounting evidence indicates that developmental programs profoundly influence aging outcomes. For instance, developmental time (the time required for an organism to reach maturity) shows a significant positive correlation with adult li...

VCP's Nuclear Journey: Initiated by Interacting with KPNB1 to Repair DNA Damage

Chemistry, Medicinal Chemistry, Medicine, Oncology, Life Sciences, Cell Biology, Biochemistry, Immunology, Genetics,
DNA damage repair   VCP   KPNB1   nuclear translocation   Withaferin A  

Academic Background DNA damage repair (DDR) is a core mechanism for maintaining genome stability, and its dysfunction is closely associated with cancer development. Valosin-containing protein (VCP/p97), a member of the AAA+ ATPase family, plays a critical role in DDR by recognizing ubiquitinated proteins and recruiting repair factors (e.g., 53BP1, ...

Persistent Pseudopod Splitting is an Effective Chemotaxis Strategy in Shallow Gradients

Information Science, Artificial Intelligence, Life Sciences, Cell Biology, Bioengineering, Immunology, Biophysics,
chemotaxis   pseudopods   reinforcement learning   mechanical intelligence   shallow gradients  

Academic Background Chemotaxis is a critical behavior in which cells or microorganisms move directionally along chemical gradients, playing vital roles in physiological processes such as immune responses, wound healing, and pathogen infections. However, how cells select optimal motility modes (e.g., pseudopod splitting or de novo formation) in comp...

Structural Insights into the Ubiquitin-Independent Midnolin-Proteasome Pathway

Medicine, Oncology, Life Sciences, Cell Biology, Biochemistry, Immunology, Biophysics,
proteasome   ubiquitin-independent degradation   Midnolin   cryo-EM   B-cell malignancies  

Academic Background Protein homeostasis (proteostasis) is a core mechanism for maintaining normal cellular function, with the ubiquitin-proteasome system (UPS) responsible for degrading approximately 80% of abnormal proteins. Traditionally, proteins were thought to require ubiquitination for recognition and degradation by the 26S proteasome. Howeve...