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http://dx.doi.org/10.1007/BF01538051 | DOI Listing |
J Clin Exp Hematop
January 2025
Department of Diagnostic Pathology, Fukushima Medical University School of Medicine, Fukushima, Japan.
Primary central nervous system (CNS) lymphomas account for 1.9-3% of all brain tumors, with the majority being histologically classified as primary large B-cell lymphoma of the CNS (PCNS-LBCL). PCNS-LBCL is characterized by mature germinal center-exit B cells, and most cases of this phenotype are classified as activated B-cell-like phenotype according to gene expression profiling, or as non-germinal center B-cell-like phenotype (non-GCB type) according to Hans's algorithm.
View Article and Find Full Text PDFEvolution
January 2025
Department of Biological Sciences, Duquesne University, Pittsburgh, PA, 15282, United States.
Male reproductive proteins frequently evolve rapidly in animals, potentially due to adaptive evolution driven by sperm competition, polyspermy avoidance, or pathogen defense. Alternatively, elevated rates of protein change may be due to relaxed constraint. The prostate-specific protease KLK3 has experienced dynamic evolution since its origin stemming from a gene duplication in the ancestor of all Old World primates, with instances of rapid evolution, stasis, and pseudogenization.
View Article and Find Full Text PDFFront Physiol
January 2025
Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States.
A transport protein's turnover rate (TOR) is the maximum rate of substrate translocation under saturating conditions. This parameter represents the number of transporting events per transporter molecule (assuming a single transport site) per second (s). From this standpoint, a transporter's TOR is similar to an enzyme's catalytic constant.
View Article and Find Full Text PDFOur current understanding of protein folding is based predominantly on studies of small (<150 aa) proteins that refold reversibly from a chemically denatured state. As protein length increases, the competition between off-pathway misfolding and on-pathway folding likewise increases, creating a more complex energy landscape. Little is known about how intermediates populated during the folding of larger proteins affect navigation of this more complex landscape.
View Article and Find Full Text PDFMol Neurobiol
January 2025
Guizhou Key Laboratory of Brain Science, Zunyi Medical University, Xinpu New District Campus No. 1 Street, Zunyi, 563000, China.
Previous studies have shown that astrocyte activation in the anterior cingulate cortex (ACC), accompanied by upregulation of the astrocyte marker S100 calcium binding protein B (S100B), contributes to comorbid anxiety in chronic inflammatory pain (CIP), but the exact downstream mechanism is still being explored. The receptor for advanced glycation end-products (RAGE) plays an important role in chronic pain and psychosis by recognizing ligands, including S100B. Therefore, we speculate that RAGE may be involved in astrocyte regulation of the comorbidity between CIP and anxiety by recognizing S100B.
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