keyword
MENU ▼
Read by QxMD icon Read
search

scfv phage display

keyword
https://www.readbyqxmd.com/read/29130184/generation-of-high-sensitivity-monoclonal-antibodies-specific-for-homoserine-lactones
#1
Soumya Palliyil
A number of bacteria use a class of chemical compounds called acyl-homoserine lactones (AHLs) as quorum sensing (QS) signals to coordinate their behavior at the population level, including pathogens like Pseudomonas aeruginosa. Blocking QS using antibodies is an attractive strategy for infection control as this process takes a central role in P. aeruginosa infections. Here the methods involved in the generation of high sensitivity anti-QS monoclonal antibodies from an immunized sheep phage display antibody library are described...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29119245/development-and-characterisation-of-a-novel-glucagon-like-peptide-1-receptor-antibody
#2
Emma K Biggs, Lihuan Liang, Jacqueline Naylor, Shimona Madalli, Rachel Collier, Matthew P Coghlan, David J Baker, David C Hornigold, Peter Ravn, Frank Reimann, Fiona M Gribble
AIMS/HYPOTHESIS: Glucagon like peptide-1 (GLP-1) enhances glucose-dependent insulin secretion by binding to GLP-1 receptors (GLP1Rs) on pancreatic beta cells. GLP-1 mimetics are used in the clinic for the treatment of type 2 diabetes, but despite their therapeutic success, several clinical effects of GLP-1 remain unexplained at a mechanistic level, particularly in extrapancreatic tissues. The aim of this study was to generate and characterise a monoclonal antagonistic antibody for the GLP1R for use in vivo...
November 9, 2017: Diabetologia
https://www.readbyqxmd.com/read/29116510/parallelized-antibody-selection-in-microtiter-plates
#3
Giulio Russo, Doris Meier, Saskia Helmsing, Esther Wenzel, Fabian Oberle, André Frenzel, Michael Hust
The most common in vitro technology to generate human antibodies is phage display. This technology is a key technology to select recombinant antibodies for the use as research tools, in diagnostic tests, and for the development of therapeutics.In this review, the high-throughput compatible selection of antibodies (scFv) in microtiter plates is described. The given detailed protocols allow the antibody selection ("panning"), screening and identification of monoclonal antibodies in less than 1 week.
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29116508/construction-of-a-synthetic-antibody-gene-library-for-the-selection-of-intrabodies-and-antibodies
#4
Déborah Caucheteur, Gautier Robin, Vincent Parez, Pierre Martineau
Libraries of antibody fragments displayed on filamentous phages have proved their value to generate human antibodies against virtually any target. We describe here a simple protocol to make large and diverse libraries based on a single or a limited number of frameworks. The approach is flexible enough to be used with any antibody format, either single-chain (scFv, VHH) or multi-chain (Fv, Fab, (Fab')2), and to target in a single step the six complementarity-determining regions-or any other part-of the antibody molecule...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29116502/construction-of-bovine-immunoglobulin-libraries-in-the-single-chain-fragment-variable-scfv-format
#5
Ulrike S Diesterbeck
Recombinant immunoglobulins are an excellent tool for diagnosis, treatment, and passive immunization. Phage display offers a robust technique for the selection of recombinant antibodies from immunoglobulin libraries. The construction of immunoglobulin libraries for veterinary purposes was restricted by the lack of knowledge about species-specific diversities.The now available data enable the construction of highly diverse libraries in livestock like cattle. Using diverse primer sets, the immunoglobulin repertoire is amplified and ligated into a phagemid...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29116500/modular-construction-of-large-non-immune-human-antibody-phage-display-libraries-from-variable-heavy-and-light-chain-gene-cassettes
#6
Nam-Kyung Lee, Scott Bidlingmaier, Yang Su, Bin Liu
Monoclonal antibodies and antibody-derived therapeutics have emerged as a rapidly growing class of biological drugs for the treatment of cancer, autoimmunity, infection, and neurological diseases. To support the development of human antibodies, various display techniques based on antibody gene repertoires have been constructed over the last two decades. In particular, scFv-antibody phage display has been extensively utilized to select lead antibodies against a variety of target antigens. To construct a scFv phage display that enables efficient antibody discovery, and optimization, it is desirable to develop a system that allows modular assembly of highly diverse variable heavy chain and light chain (Vκ and Vλ) repertoires...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29116497/construction-of-human-immune-and-naive-scfv-libraries
#7
Jonas Kügler, Florian Tomszak, André Frenzel, Michael Hust
Antibody phage display is the most commonly used in vitro selection technology for the generation of human recombinant antibodies and has yielded thousands of useful antibodies for research, diagnostics, and therapy. The prerequisite for successful generation of antibodies using phage display is the construction of high-quality antibody gene libraries. Here, we give the detailed methods for the construction of human immune and naive scFv gene libraries.
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29100408/a-novel-fc-engineered-human-icam-1-cd54-antibody-with-potent-anti-myeloma-activity-developed-by-cellular-panning-of-phage-display-libraries
#8
Katja Klausz, Michael Cieker, Christian Kellner, Hans-Heinrich Oberg, Dieter Kabelitz, Thomas Valerius, Renate Burger, Martin Gramatzki, Matthias Peipp
To identify antibodies suitable for multiple myeloma (MM) immunotherapy, a cellular screening approach was developed using plasma cell lines JK-6L and INA-6 and human synthetic single-chain fragment variable (scFv) phage libraries. Isolated phage antibodies were screened for myeloma cell surface reactivity. Due to its binding characteristics, phage PIII-15 was selected to generate the scFv-Fc fusion protein TP15-Fc with an Fc domain optimized for FcγRIIIa binding. Various MM cell lines and patient-derived CD138-positive malignant plasma cells, but not granulocytes, B or T lymphocytes from healthy donors were recognized by TP15-Fc...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29089574/high-throughput-discovery-of-influenza-virus-neutralizing-antibodies-from-phage-displayed-synthetic-antibody-libraries
#9
Ing-Chien Chen, Yi-Kai Chiu, Chung-Ming Yu, Cheng-Chung Lee, Chao-Ping Tung, Yueh-Liang Tsou, Yi-Jen Huang, Chia-Lung Lin, Hong-Sen Chen, Andrew H-J Wang, An-Suei Yang
Pandemic and epidemic outbreaks of influenza A virus (IAV) infection pose severe challenges to human society. Passive immunotherapy with recombinant neutralizing antibodies can potentially mitigate the threats of IAV infection. With a high throughput neutralizing antibody discovery platform, we produced artificial anti-hemagglutinin (HA) IAV-neutralizing IgGs from phage-displayed synthetic scFv libraries without necessitating prior memory of antibody-antigen interactions or relying on affinity maturation essential for in vivo immune systems to generate highly specific neutralizing antibodies...
October 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29076991/single-chain-antibody-fragment-against-venom-from-the-snake-daboia-russelii-formosensis
#10
Chi-Hsin Lee, Yu-Ching Lee, Yueh-Lun Lee, Sy-Jye Leu, Liang-Tzung Lin, Chi-Ching Chen, Jen-Ron Chiang, Pharaoh Fellow Mwale, Bor-Yu Tsai, Ching-Sheng Hung, Yi-Yuan Yang
Russell's vipers containing hemotoxic and neurotoxic venom commonly cause snake envenomation. Horse-derived antivenom is a specific antidote, but its production is expensive and has side effects. Developing a cost-effective and more tolerable therapeutic strategy is favorable. In this study, using glutaraldehyde-attenuated Daboia russelii formosensis (DRF) venom proteins to immunize chickens, polyclonal yolk-immunoglobulin (IgY) antibodies were generated and showed a specific binding affinity. Phage display technology was used to generate two antibody libraries of single-chain variable fragments (scFvs) containing 3...
October 27, 2017: Toxins
https://www.readbyqxmd.com/read/29029420/generation-and-evaluation-of-antibody-agents-for-molecular-imaging-of-cd44v6-expressing-cancers
#11
Anna-Karin Haylock, Johan Nilvebrant, Anja Mortensen, Irina Velikyan, Marika Nestor, Ronny Falk
AIM: The aim of this study was to generate and characterize scFv antibodies directed to human CD44v6, as well as to radiolabel and evaluate top candidates in vitro and in vivo for their potential use in CD44v6-targeted molecular imaging in cancer patients. MATERIALS AND METHODS: Phage display selections were used to isolate CD44v6-specific scFvs. A chain shuffling strategy was employed for affinity maturation based on a set of CD44v6-specific first-generation clones...
September 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29018324/design-and-characterization-of-a-human-monoclonal-antibody-that-modulates-mutant-connexin-26-hemichannels-implicated-in-deafness-and-skin-disorders
#12
Liang Xu, Andrea Carrer, Francesco Zonta, Zhihu Qu, Peixiang Ma, Sheng Li, Federico Ceriani, Damiano Buratto, Giulia Crispino, Veronica Zorzi, Gaia Ziraldo, Francesca Bruno, Chiara Nardin, Chiara Peres, Flavia Mazzarda, Anna M Salvatore, Marcello Raspa, Ferdinando Scavizzi, Youjun Chu, Sichun Xie, Xuemei Yang, Jun Liao, Xiao Liu, Wei Wang, Shanshan Wang, Guang Yang, Richard A Lerner, Fabio Mammano
Background: Mutations leading to changes in properties, regulation, or expression of connexin-made channels have been implicated in 28 distinct human hereditary diseases. Eight of these result from variants of connexin 26 (Cx26), a protein critically involved in cell-cell signaling in the inner ear and skin. Lack of non-toxic drugs with defined mechanisms of action poses a serious obstacle to therapeutic interventions for diseases caused by mutant connexins. In particular, molecules that specifically modulate connexin hemichannel function without affecting gap junction channels are considered of primary importance for the study of connexin hemichannel role in physiological as well as pathological conditions...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28994732/production-of-single-chain-fv-antibodies-specific-for-ga-pyridine-an-advanced-glycation-end-product-age-with-reduced-inter-domain-motion
#13
Natsuki Fukuda, Kentaro Noi, Lidong Weng, Yoshihiro Kobashigawa, Hiromi Miyazaki, Yukari Wakeyama, Michiyo Takaki, Yusuke Nakahara, Yuka Tatsuno, Makiyo Uchida-Kamekura, Yoshiaki Suwa, Takashi Sato, Naoki Ichikawa-Tomikawa, Motoyoshi Nomizu, Yukio Fujiwara, Fumina Ohsaka, Takashi Saitoh, Katsumi Maenaka, Hiroyuki Kumeta, Shoko Shinya, Chojiro Kojima, Teru Ogura, Hiroshi Morioka
Due to their lower production cost compared with monoclonal antibodies, single-chain variable fragments (scFvs) have potential for use in several applications, such as for diagnosis and treatment of a range of diseases, and as sensor elements. However, the usefulness of scFvs is limited by inhomogeneity through the formation of dimers, trimers, and larger oligomers. The scFv protein is assumed to be in equilibrium between the closed and open states formed by assembly or disassembly of VH and VL domains. Therefore, the production of an scFv with equilibrium biased to the closed state would be critical to overcome the problem in inhomogeneity of scFv for industrial or therapeutic applications...
October 10, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28953230/a-novel-fully-human-agonistic-single-chain-fragment-variable-antibody-targeting-death-receptor-5-with-potent-antitumor-activity-in-vitro-and-in-vivo
#14
Gaoxin Lei, Menglong Xu, Zhipan Xu, Lili Gu, Chenchen Lu, Zhengli Bai, Yue Wang, Yongbo Zhang, Huajing Hu, Yiwei Jiang, Wenfeng Zhao, Shuhua Tan
Agonistic antibodies, which bind specifically to death receptor 5 (DR5), can trigger apoptosis in tumor cells through the extrinsic pathway. In this present study, we describe the use of a phage display to isolate a novel fully human agonistic single chain fragment variable (scFv) antibody, which targets DR5. After five rounds of panning a large (1.2 × 10⁸ clones) phage display library on DR5, a total of over 4000 scFv clones were screened by the phage ELISA. After screening for agonism in a cell-viability assay in vitro, a novel DR5-specific scFv antibody TR2-3 was isolated, which inhibited COLO205 and MDA-MB-231 tumor cell growth without any cross-linking agents...
September 27, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28942640/development-of-an-indirect-competitive-enzyme-linked-immunosorbent-assay-for-glycocholic-acid-based-on-chicken-single-chain-variable-fragment-antibodies
#15
Xiping Cui, Natalia Vasylieva, Panpan Wu, Bogdan Barnych, Jun Yang, Ding Shen, Qiyi He, Shirley J Gee, Suqing Zhao, Bruce D Hammock
Glycocholic acid (GCA) is an important metabolite of bile acids, whose urine levels are expected to be a specific diagnostic biomarker for hepatocellular carcinoma (HCC). A high-throughput immunoassay for determination of GCA would be of significant advantage and useful for primary diagnosis, surveillance, and early detection of HCC. Single-chain variable fragment (scFv) antibodies have several desirable characteristics and are an attractive alternative to traditional antibodies for the immunoassay. Because chicken antibodies possess single heavy and light variable functional domains, they are an ideal framework for simplified generation of recombinant antibodies for GCA detection...
October 17, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28895936/rapid-and-highly-sensitive-non-competitive-immunoassay-for-specific-detection-of-nodularin
#16
Sultana Akter, Markus Vehniäinen, Harri T Kankaanpää, Urpo Lamminmäki
Nodularin (NOD) is a cyclic penta-peptide hepatotoxin mainly produced by Nodularia spumigena, reported from the brackish water bodies of various parts of the world. It can accumulate in the food chain and, for safety reasons, levels of NOD not only in water bodies but also in food matrices are of interest. Here, we report on a non-competitive immunoassay for the specific detection of NOD. A phage display technique was utilized to interrogate a synthetic antibody phage library for binders recognizing NOD bound to an anti-ADDA (3-Amino-9-methoxy-2,6,8-trimethyl-10-phenyldeca-4(E),6(E)-dienoic acid) monoclonal antibody (Mab)...
September 12, 2017: Microorganisms
https://www.readbyqxmd.com/read/28886513/construction-of-genetically-engineered-m13k07-helper-phage-for-simultaneous-phage-display-of-gold-binding-peptide-1-and-nuclear-matrix-protein-22-scfv-antibody
#17
Farnaz Fatemi, Seyed Mohammad Amini, Sharmin Kharrazi, Mohammad Javad Rasaee, Mohammad Ali Mazlomi, Majid Asadi-Ghalehni, Masoumeh Rajabibazl, Esmaeil Sadroddiny
The most common techniques of antibody phage display are based on the use of M13 filamentous bacteriophages. This study introduces a new genetically engineered M13K07 helper phage displaying multiple copies of a known gold binding peptide on p8 coat proteins. The recombinant helper phages were used to rescue a phagemid vector encoding the p3 coat protein fused to the nuclear matrix protein 22 (NMP22) ScFv antibody. Transmission electron microscopy (TEM), UV-vis absorbance spectroscopy, and field emission scanning electron microscopy (FE-SEM) with energy dispersive X-ray spectroscopy (EDX) analysis revealed that the expression of gold binding peptide 1 (GBP1) on major coat protein p8 significantly enhances the gold-binding affinity of M13 phages...
August 24, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28884285/immune-tb-antibody-phage-display-library-as-a-tool-to-study-b-cell-immunity-in-tb-infections
#18
Nurul Hamizah Hamidon, Siti Suraiya, Maria E Sarmiento, Armando Acosta, Mohd Nor Norazmi, Theam Soon Lim
B cells and in particular antibodies has always played second fiddle to cellular immunity in regard to tuberculosis (TB). However, recent studies has helped position humoral immunity especially antibodies back into the foray in relation to TB immunity. Therefore, the ability to correlate the natural antibody responses of infected individuals toward TB antigens would help strengthen this concept. Phage display is an intriguing approach that can be utilized to study antibody-mediated responses against a particular infection via harvesting the B cell repertoire from infected individuals...
September 7, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28866120/identification-of-a-novel-single-chain-fragment-variable-antibody-targeting-cd24-expressing-cancer-cells
#19
Shirin Eyvazi, Bahram Kazemi, Mojgan Bandehpour, Siavoush Dastmalchi
CD24 is a heavy glycosylated protein that is overexpressed in numerous cancer and cancer stem cells. It is involved in the development, invasion, and metastasis of the cancer cells. CD24 can be considered in targeted cancer therapy as a new target. Here, phage display technology was used for the identification of novel scFv antibodies against CD24. To do so, the CD24 protein was expressed and purified from a stable transgenic CHO cell line. The cells were developed by using a CD24 encoding construct, which targets the 18S rRNA gene...
September 1, 2017: Immunology Letters
https://www.readbyqxmd.com/read/28864568/using-phage-display-to-create-recombinant-antibodies
#20
James R Dasch, Amy L Dasch
A variety of phage display technologies have been developed since the approach was first described for antibodies. The most widely used approaches incorporate antibody sequences into the minor coat protein pIII of the nonlytic filamentous phage fd or M13. Libraries of variable gene sequences, encoding either scFv or Fab fragments, are made by incorporating sequences into phagemid vectors. The phagemid is packaged into phage particles with the assistance of a helper phage to produce the antibody display phage...
September 1, 2017: Cold Spring Harbor Protocols
keyword
keyword
117126
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"