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Cytotoxic and proliferation-inhibitory activity of natural and synthetic fungal tropolone sesquiterpenoids in various cell lines.
Heliyon
November 2024
Institute of Cell Biology and Biophysics, Department of Cell Biology, Leibniz University Hannover, 30419, Hannover, Germany.
Fungal specialized metabolites are known for their potent biological activities, among which tropolone sesquiterpenoids (TS) stand out for their diverse bioactivities. Here, we report cytotoxic and proliferation inhibitory effects of the recently discovered TS compounds 4-hydroxyxenovulene B and 4-dihydroxy norpycnidione, and the structurally related 4-hydroxy norxenovulene B and xenovulene B. Inhibition of metabolic activity after TS treatment was observed in Jurkat, PC-3 and FAIK3-5 cells, whereas MDA-MB-231 cells were unresponsive to treatment.
View Article and Find Full Text PDFHemolysis due to anti-IH in a patient with beta-thalassemia and infection.
Immunohematology
December 2024
Department of Pathology, University of California San Diego, La Jolla, CA.
Anti-IH is a common cold agglutinin that is typically clinically insignificant. We present a case that resulted in hemolysis. A 32-year-old male patient with transfusion-independent beta-thalassemia intermedia presented with symptomatic anemia.
View Article and Find Full Text PDFEffect of CHO cell line constructed with CMAH gene-directed integration on the recombinant protein expression.
Int J Biol Macromol
December 2024
International Joint Research Laboratory for Recombinant Pharmaceutical Protein Expression System of Henan, Xinxiang Medical University, Xinxiang 453003, Henan, China; School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, Henan, China. Electronic address:
Chinese hamster ovary (CHO) cells are the most widely used platform for recombinant therapeutic protein (RTP) production. Traditionally, the development of CHO cell lines has mainly depended on random integration of transgenes into the genome, which is not conducive to stable long-term expression. Cytidine monophosphate N-acetylneuraminic acid hydroxylase (CMAH) is expressed in CHO cells and produces N-hydroxyacetylneuraminic acid, which may cause a human immune response.
View Article and Find Full Text PDFLet It Grow: The Role of Growth Factors in Managing Chemotherapy-Induced Cytopenia.
Curr Oncol
December 2024
Department of Hematology, Stem Cell Transplant and Cellular Therapy, Oncology Centre, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia.
Chemotherapy-induced cytopenia (CIC) is characterized by neutropenia, anemia, and thrombocytopenia, which are common and serious complications in cancer treatment. These conditions affect approximately 60% of patients undergoing chemotherapy and can significantly impact quality of life, treatment continuity, and overall survival. The use of growth factors, including granulocyte colony-stimulating factors (GCSFs), erythropoietin-stimulating agents (ESAs), and thrombopoietin receptor agonists (TPO-RAs), has emerged as a promising strategy for managing CIC.
View Article and Find Full Text PDFProlyl hydroxylase domain inhibitors prevent kidney crystal formation by suppressing inflammation.
Urolithiasis
December 2024
Department of Nephro-urology, Nagoya City University Graduate School of Medical Sciences, 1, Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Japan.
The early stages of kidney crystal formation involve inflammation and hypoxia-induced cell injury; however, the role of the hypoxic response in kidney crystal formation remains unclear. This study investigated the effects of a prolyl hydroxylase domain inhibitor (roxadustat) on renal calcium oxalate (CaOx) crystal formation through in vitro and in vivo approaches. In the in vitro experiment, murine renal tubular cells (RTCs) were exposed to varying roxadustat concentrations and CaOx crystals.
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