Shark‐derived vnarbodies 20G6 and 17F6 broadly neutralize SARS‐CoV‐2 Wuhan, Alpha, Beta, Kappa, Delta, Delta‐plus, Lambda variants, and sarbecovirus coronaviruses, but are unexpectedly ineffective for Omicron. Intranasal administration of 20G6 confers effective preventive and therapeutic effects in mice infected with SARS‐CoV‐2 Wuhan and Beta variant ...
Bo Feng +21 more
wiley +1 more source
Shark New Antigen Receptor (IgNAR): Structure, Characteristics and Potential Biomedical Applications
Shark is a cartilaginous fish that produces new antigen receptor (IgNAR) antibodies. This antibody is identified with a similar human heavy chain but dissimilar sequences.
Salma Nassor Juma +6 more
doaj +1 more source
Tumor necrosis factor α (TNFα), an important clinical testing factor and drug target, can trigger serious autoimmune diseases and inflammation. Thus, the TNFα antibodies have great potential application in diagnostics and therapy fields.
Linfei Zhao +5 more
doaj +1 more source
Isolation of highly selective IgNAR variable single-domains against a human therapeutic Fc scaffold and their application as tailor-made bioprocessing reagents [PDF]
Funding This work was supported by the Industrial Biotechnology Innovation Centre, and Merck KGaA. Acknowledgements The authors would like to thank Iris Willenbücher and Kerstin Hallstein for the BIAcore™ analysis and Nadine Barron for the bio-layer ...
Barelle, Caroline J +3 more
core +1 more source
Marine-derived microbes and molecules for drug discovery
Increasing attention has been paid to marine-derived biomolecules as sources of therapeutics for autoimmune diseases. Nagasaki Prefecture has many islands and is surrounded by seas, straits, gulfs, bays, and coves, giving it the second longest coastline ...
Yoshimasa Tanaka +8 more
doaj +1 more source
Shark-derived single-domain antibodies for the detection of decapod iridescent virus 1
Decapod iridescent virus 1 (DIV1) has emerged as a novel threat to shrimp farming. The development of a rapid, convenient, and accurate method for diagnosing DIV1 is urgently needed, serving as a key factor in the reduction of the risk of viral outbreaks.
Jinlin Chen +6 more
doaj +1 more source
Screening and Characterization of Shark-Derived VNARs against SARS-CoV-2 Spike RBD Protein
The receptor-binding domain (RBD) of the SARS-CoV-2 spike protein is the major target for antibody therapeutics. Shark-derived variable domains of new antigen receptors (VNARs) are the smallest antibody fragments with flexible paratopes that can recognize protein motifs inaccessible to classical antibodies. This study reported four VNARs binders (JM-2,
Yu-Lei Chen +9 more
openaire +2 more sources
Single domain antibodies: promising experimental and therapeutic tools in infection and immunity [PDF]
Antibodies are important tools for experimental research and medical applications. Most antibodies are composed of two heavy and two light chains. Both chains contribute to the antigen-binding site which is usually flat or concave.
Janusz Wesolowski +146 more
core +6 more sources
Brain delivery of biologics using a cross‐species reactive transferrin receptor 1 VNAR shuttle
Abstract Transferrin receptor 1 (TfR1) mediated transcytosis is an attractive strategy to enhance brain uptake of protein drugs, but translation remains a challenge. Here, a single domain shark antibody VNAR fragment (TXB2) with similar affinity to murine and human TfR1 was used to shuttle protein cargo into the brain. TXB2 was fused to a human IgG1 Fc
Dag Sehlin +6 more
wiley +1 more source
Enhancing the Transdermal Delivery of ‘Next Generation’ Variable New Antigen Receptors Using Microarray Patch Technology: a Proof-of-Concept Study [PDF]
Heavy chain only binding proteins, such as variable new antigen receptors (VNARs), have emerged as an alternative to the highly successful therapeutic monoclonal antibodies (mAb).
Barelle, C. +3 more
core +1 more source

