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An IgM Cleaving Enzyme for Clearance of Anti-Pig Xenoreactive Antibodies in a Nonhuman Primate Model.
Xenotransplantation
January 2025
Department of Surgery, Duke University School of Medicine, Durham, North Carolina, USA.
Background: The removal of preformed antibodies with cleaving enzyme like IdeS (Imlifidase) has demonstrated therapeutic potential in organ transplantation for sensitized recipients. However, preformed xenoreactive antibodies (XAbs) against porcine glycans are predominantly IgM and considered detrimental in pig-to-human xenotransplantation.
Methods: Recombinant IceM, an endopeptidase cleaving IgM, was generated in Escherichia coli.
Morphologic Correlations With Homologous Recombination Deficiency in High-grade Serous Carcinomas.
Int J Gynecol Pathol
January 2025
Department of Pathology and Immunology, Washington University.
High-grade serous carcinomas (HGSCs) with homologous recombination deficiency (HRD) respond favorably to platinum therapy and poly ADP ribose polymerase (PARP) inhibitors. Mutations in BRCA1 and BRCA2 commonly cause HRD and have been associated with Solid, pseudoEndometrioid, and Transitional-like (SET-like) histology. Mutations in other homologous recombination repair (HRR) genes as well as epigenetic changes can also result in HRD; however, morphologic correlates have not been well-explored in these cases.
View Article and Find Full Text PDFAAV vector transduction restriction and attenuated toxicity in hESCs via a rationally designed inverted terminal repeat.
Nucleic Acids Res
January 2025
Ophthalmology, University of North Carolina, 130 Mason Farm Rd, Chapel Hill, NC 27517, USA.
Adeno-associated virus (AAV) inverted terminal repeats (ITRs) induce p53-dependent apoptosis in human embryonic stem cells (hESCs). To interrogate this phenomenon, a synthetic ITR (SynITR), harboring substitutions in putative p53 binding sites was generated and evaluated for vector production and gene delivery. Replication of SynITR flanked transgenic genome was similar compared to wild type (wt) ITR, with a modest increase in vector titers.
View Article and Find Full Text PDFExploring using HBsAg to predict interferon treatment course to achieve clinical cure in chronic hepatitis B patients: a clinical study.
Front Immunol
January 2025
Department of Gastroenterology and Hepatology, Tianjin Third Central Hospital, Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Institute of Hepatobiliary Disease, Tianjin, China.
Objective: Although pegylated interferon α-2b (PEG-IFN α-2b) therapy for chronic hepatitis B has received increasing attention, determining the optimal treatment course remains challenging. This research aimed to develop an efficient model for predicting interferon (IFN) treatment course.
Methods: Patients with chronic hepatitis B, undergoing PEG-IFN α-2b monotherapy or combined with NAs (Nucleoside Analogs), were recruited from January 2018 to December 2023 at Tianjin Third Central Hospital.
Type IV collagen derived non-collagenous domain α6 (IV) NC1 and its derivative fragments inhibit endothelial cell proliferation and attenuates chorioallantoic membrane angiogenesis.
Cytotechnology
April 2025
Department of Genetics, Osmania University, Hyderabad, Telangana State India.
Targeting tumor angiogenesis with safe endogenous protein inhibitors is a promising therapeutic approach despite the plethora of the first line of emerging chemotherapeutic drugs. The extracellular matrix network in the blood vessel basement membrane and growth factors released from endothelial and tumor cells promote the neovascularization which supports the tumor growth. Contrastingly, small cleaved cryptic fragments of the C-terminal non collagenous domains of the same basement membrane display antiangiogenic effect.
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