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Integrated SegFlow, µSIA, and UPLC for Online Sialic Acid Quantitation of Glycoproteins Directly from Bioreactors.
Eng Life Sci
January 2025
Analytical Development & Analytical Attribute Science in Biologics Bristol Myers Squibb Devens Massachusetts USA.
This study emphasizes the critical importance of closely monitoring and controlling the sialic acid content in therapeutic glycoproteins, including EPO, interferon-γ, Orencia, Enbrel, and others, as the level of sialylation directly impacts their pharmacokinetics (PK), immunogenicity, potency, and overall clinical performance due to its influence on protein clearance via hepatic asialoglycoprotein receptors (ASGPR). The ASGPR recognizes and binds to glycoproteins exposed to terminal galactose or N-acetylgalactosamine residues, leading to receptor-mediated endocytosis. Recent studies have demonstrated that sialylation of O-linked glycan plays a role in protecting against macrophage galactose lectin (MGL)-mediated clearance.
View Article and Find Full Text PDFPredictive factors for clinical cure in the treatment of HBeAg(-) chronic hepatitis B or compensated cirrhosis: a prospective observational study.
Front Med (Lausanne)
January 2025
Department of Hepatobiliary and Pancreatic Medicine, The First Hospital of Jilin University Changchun, Changchun, Jilin, China.
Background: Sequential or combined treatment with nucleos(t)ide analogs (NAs) and pegylated interferon alpha-2b (Peg-IFN--2b) can improve the clinical cure rate. However, its clinical application is limited due to the adverse reactions associated with IFN.
Methods: A multi-center prospective observational study was conducted involving 59 NAs-treated chronic hepatitis B (CHB) patients who were treated with a combination therapy of NAs and Peg-IFN--2b for 48 weeks.
Exploring the Proteomic Landscape and Immunomodulatory Functions of Derived Extracellular Vesicles.
J Microbiol Biotechnol
December 2024
College of Veterinary Medicine and Research Institute of Veterinary Medicine, Chungnam National University, Daejeon 34134, Republic of Korea.
Extracellular vesicles (EVs) have garnered attention in research for their potential as biochemical transporters and immune modulators, crucial for regulating the host immune system. The present study was conducted to isolate and characterize EVs from Gram negative bacteria (EVs) and investigate their proteomic profile and immune responses. Isolation of EVs was carried out using ultracentrifugation method.
View Article and Find Full Text PDFROR1 CAR-T cells and ferroptosis inducers orchestrate tumor ferroptosis via PC-PUFA2.
Biomark Res
January 2025
Department of Clinical Laboratory Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China.
Background: Lung cancer, particularly non-small cell lung cancer (NSCLC), has high recurrence rates and remains a leading cause of cancer-related death, despite recent advances in its treatment. Emerging therapies, such as chimeric antigen receptor (CAR)-T cell therapy, have shown promise but face significant challenges in targeting solid tumors. This study investigated the potential of combining receptor tyrosine kinase-like orphan receptor 1 (ROR1)-targeting CAR-T cells with ferroptosis inducers to promote ferroptosis of tumor cells and enhance anti-tumor efficacy.
View Article and Find Full Text PDFMonocyte STAT1 phosphorylation and treatment response of JAK inhibitors in chronic nonbacterial osteomyelitis.
Pediatr Rheumatol Online J
January 2025
Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan.
Background: Chronic nonbacterial osteomyelitis (CNO) is a rare autoinflammatory disease of unknown cause, predominantly affecting teens and young adults. The early diagnosis and management are challenging due to the lack of reliable diagnostic markers and the occasional intractable cases despite conventional anti-inflammatory treatments. Janus kinase (JAK) inhibitors have recently shown potential utility; however, reports on their use for pediatric patients with CNO remain limited, and no established biomarkers exist to monitor disease activity.
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