Bacterial infections are the most important problem of health care worldwide. The hemolymph antibacterial proteins of was isolated for the first time and its antibacterial efficacy was evaluated against four different human pathogenic microbes viz., , , and The antibacterial potential of the antimicrobial proteins of hemolymph samples from plankton cultured in water enriched with Cow Urine Distillate (CUD) was compared with normal ones. The results indicated that the hemolymph proteins were more potential against Gram negative bacteria than Gram positive bacteria. was more susceptible to the hemolymph proteins exhibiting a zone of inhibition measuring 27 mm. The supplement of CUD to the culture media further enriched the antibacterial activity of the hemolymph proteins (29 mm). The SDS-PAGE analysis indicated two different types of clear bands representing proteins of 53 kDa and 19 kDa. Overall, this investigation signified that the microcrustaceans have a defence mechanism hemolymph of have a potential agent for novel antibiotics.
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http://dx.doi.org/10.1016/j.sjbs.2020.05.011 | DOI Listing |
Mol Biol Rep
January 2025
College of Life Sciences, Liaoning Normal University, Dalian, Liaoning, 116029, China.
Background: High temperature is a critical environmental factor leading to mass mortality in oyster aquaculture in China. Recent advancements highlight the physiological regulation function of γ-aminobutyric acid (GABA) in the adaptation of environmental stress.
Methods And Results: This study examined the physiological responses of the Pacific oyster (Crassostrea gigas) upon high temperature exposure, focusing on the histopathological changes in gill, the GABA concentration, the mRNA expression and activities of apoptosis-related genes.
PLoS One
January 2025
National Marine Science Centre, Southern Cross University, Coffs Harbour, NSW, Australia.
Discovering new antibiotics and increasing the efficacy of existing antibiotics are priorities to address antimicrobial resistance. Antimicrobial proteins and peptides (AMPPs) are considered among the most promising antibiotic alternatives and complementary therapies. Here, we build upon previous work investigating the antibacterial activity of a semi-purified hemolymph protein extract (HPE) of the Australian oyster Saccostrea glomerata.
View Article and Find Full Text PDFbioRxiv
January 2025
Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, 7 02115, USA.
Tumors can exert a far-reaching influence on the body, triggering systemic responses that contribute to debilitating conditions like cancer cachexia. To characterize the mechanisms underlying tumor-host interactions, we utilized a BioID-based proximity labeling method to identify proteins secreted by Yki adult gut tumors into the bloodstream/hemolymph. Among the major proteins identified are coagulation and immune-responsive factors that contribute to the systemic wasting phenotypes associated with Yki tumors.
View Article and Find Full Text PDFInsect Sci
January 2025
State Key Laboratory of Agricultural and Forestry Biosecurity, Fujian Agriculture and Forestry University, Fuzhou, China.
Serpins (serine protease inhibitors) constitute a superfamily of proteins with functional diversity and unusual conformational flexibility. In insects, serpins act as multiple inhibitors, by forming inactive acyl-enzyme complexes, in regulating Spätzles activation, phenoloxidases (POs) activity, and other cytokines. In this study, we present the cloning and characterization of Octodonta nipae serpin2 (OnSPN2), a 415 residues protein homologous to Tenebrio molitor 42Dd-like.
View Article and Find Full Text PDFBiochim Biophys Acta Mol Basis Dis
January 2025
State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou 311300, China; Department of Pharmaceutical Botany, School of Pharmacy, Naval Medical University, Shanghai 200433, China. Electronic address:
Aging is a complicated process, featuring the progressive deterioration of physiological functions and a heightened susceptibility to diseases including neurodegenerative disorders, cardiovascular diseases, and cancer. Apigenin, a flavonoid existing in various plants, has attracted attention due to its potential role in anti-aging. In this investigation, the potential effect of apigenin on extending lifespan in Saccharomyces cerevisiae (yeast) and Drosophila melanogaster (flies) was explored.
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