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Actinobacteria, the bacterial phylum most renowned for natural product discovery, has been established as a valuable source for drug discovery and biotechnology but is underrepresented within accessible genome and strain collections. Herein, we introduce the Natural Products Discovery Center (NPDC), featuring 122,449 strains assembled over eight decades, the genomes of the first 8490 NPDC strains (7142 Actinobacteria), and the online NPDC Portal making both strains and genomes publicly available. A comparative survey of RefSeq and NPDC Actinobacteria highlights the taxonomic and biosynthetic diversity within the NPDC collection, including three new genera, hundreds of new species, and ~7000 new gene cluster families. Selected examples demonstrate how the NPDC Portal's strain metadata, genomes, and biosynthetic gene clusters can be leveraged using genome mining approaches. Our findings underscore the ongoing significance of Actinobacteria in natural product discovery, and the NPDC serves as an unparalleled resource for both Actinobacteria strains and genomes.
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http://dx.doi.org/10.1101/2023.12.14.571759 | DOI Listing |
J Sep Sci
September 2025
Department of Analytical Chemistry, Faculty of Science, Palacký University Olomouc, Olomouc, Czech Republic.
The increasing use of engineered nanoparticles (NPs) in consumer and biomedical products has raised concern over their potential accumulation, transformation, and toxicity in biological systems. Accurate analytical methods are essential to detect, characterize, and quantify NPs in complex biological matrices. Inductively coupled plasma mass spectrometry (ICP-MS) has emerged as a leading technique due to its high sensitivity, elemental selectivity, and quantitative capabilities.
View Article and Find Full Text PDFAAPS J
September 2025
Gene Transfer and Immunogenicity Branch, Division of Gene Therapy 2, Office of Gene Therapy, Office of Therapeutic Products, Center for Biologics Evaluation and Research, US Food and Drug Administration, WO52 RM3124, 10903 New Hampshire Ave, Silver Spring, Maryland, 20993-0002, USA.
As the field of gene therapy advances and as the importance of sex as a biological variable in shaping viral immune responses is recognized, the impact of sex on adeno-associated virus (AAV) vectors mediated gene therapies remain largely unexplored. Here we review current understanding of the immune response against AAV gene therapy as well as the knowledge of sex differences observed in viral responses. We discuss sex differences in innate immune mechanisms such as Toll-like receptor recognition and complement activation, as well as the functional responses of key immune cells such as dendritic cells, macrophages, and T/B cells that are involved in AAV immunogenicity.
View Article and Find Full Text PDFJ Neuroendocrinol
September 2025
Laboratorio de Neuroendocrinología, Instituto de Biología y Medicina Experimental (IBYME-CONICET), Buenos Aires, Argentina.
Benzophenones (BPs) are widely used as ultraviolet (UV) filters in personal care products, plastics, and food packaging. Although they serve as effective photoprotective agents, growing evidence suggests that BPs can act as endocrine-disrupting chemicals (EDCs), interfering with hormone regulation and reproductive functions. This review summarizes the current knowledge on BP exposure, metabolism, and their potential effects on reproductive health.
View Article and Find Full Text PDFAnn Behav Med
January 2025
Division of Cancer Control and Population Sciences, National Cancer Institute, Rockville, MD 20850, United States.
Background: Hispanic/Latina women in the United States have high rates of cervical cancer and little is known regarding how sociocultural factors might be related to their cervical cancer prevention behaviors.
Purpose: Two studies examined correlates of human papillomavirus (HPV) vaccine initiation, HPV vaccine completion, ever screening for cervical cancer, and being up to date with screening among screening- and vaccine-eligible Hispanic/Latina women.
Methods: Study 1 examined sociodemographic correlates of these behaviors using data from the Behavioral Risk Factor Surveillance System.
Phytochemistry
September 2025
Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory Co., Ltd., Yunnan Key Laboratory of Research and Development for Natural Products, School of Chemical Science and Technology, School of Medicine and School of Pharmacy
In the present study, eight undescribed compounds, namely caseazins R-Y (1-8) were isolated from the twigs and leaves of Casearia kurzii (Flacourtiaceae). Their structures were elucidated by extensive spectroscopic analysis, nuclear magnetic resonance methods, X-ray diffraction analysis, and ECD calculations. Compound 1 was characterized as a rare 2,3-seco podocarpane carbon skeleton.
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