Naturally Acquired Antibody Responses to a Synthetic Malaria Antigen AS202.11 by Rebeka Nazareth, Pius Horumpende, Tolbert Sonda, Arnold Ndaro, Edson Mollel, Eliakim Paul, Emmanuel Athanase, Jaffu Chilongola

“…A major challenge to malaria vaccine development is identification of protective epitopes and respective protective immune responses. …”
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Identification of HPV16 E1 and E2-specific T cells in the oropharyngeal cancer tumor microenvironment by Christine McInnis, Lakshmi Srinivasan, Anthony J Coyle, Shilpa Bhatia, Glenn J Hanna, Ann Marie Egloff, Brinda Vijaykumar, Qiaomu Tian, Yanbo Sun, Del Leistritz-Edwards, Charles T Quinn, Ravi Uppaluri, Daniel C Pregibon

“…However, specific virally-encoded epitopes and their corresponding immune responses are not fully defined.Methods To understand the OPSCC immune landscape, we conducted a comprehensive single-cell analysis of HPV16+ and HPV33+ primary tumors and metastatic lymph nodes. …”
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Preparation of recombinant myoglobin and investigation of the liquid antigen stability for quality control materials by Yu-Hui Wang, Xi-Feng Sun, Chun-Xin Xu, Feng-Qiang Sun, Rong-Rong Wang, Xiao-Kun Bian, Zhan-Zhao Wang, Qiang Wu

“…The concentrations per gradient measured using different kits had no significant difference (p-value>0.05), which indicated that the reactivity between the Mb antigen and Mb antibodies with different epitopes was good. The effects of different storage buffer, storage temperature and storage times on the stability of liquid Mb were investigated by detecting the concentration changes. …”
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Exploring molecular determinants and pharmacokinetic properties of IgG1-scFv bispecific antibodies by Kristina M.J. Aertker, Minu Ravindra Pilvankar, Tobias M. Prass, Michaela Blech, Fabian Higel, Srinath Kasturirangan

“…Bispecific antibodies (BsAbs) capable of recognizing two distinct epitopes or antigens offer promising therapeutic options for various diseases by targeting multiple pathways. …”
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Biparatopic binding of ISB 1442 to CD38 in trans enables increased cell antibody density and increased avidity by Jeremy Loyau, Thierry Monney, Marco Montefiori, Fedir Bokhovchuk, Jeremy Streuli, Matthew Blackburn, Arnaud Goepfert, Lydia N. Caro, Samitabh Chakraborti, Stefania De Angelis, Camille Grandclément, Stanislas Blein, M. Lamine Mbow, Ankita Srivastava, Mario Perro, Stefano Sammicheli, Eugene A. Zhukovsky, Michael Dyson, Cyrille Dreyfus

“…It consists of two adjacent anti-CD38 arms targeting non-overlapping epitopes that preferentially drive binding to tumor cells and a low-affinity anti-CD47 arm to enable avidity-induced blocking of proximal CD47 receptors. …”
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New insights into the N-glycomes of Dictyostelium species by Alba Hykollari, Daniel Malzl, Chunsheng Jin, Carina Eschenbach, Kristína Kianičková, Iain B.H. Wilson, Katharina Paschinger

“…In previous studies on Dictyostelium discoideum, it was demonstrated that their N-glycans, as in most eukaryotes, derive from the Glc3Man9GlcNAc2-PP-Dol precursor; however, unique glyco-epitopes, including intersecting GlcNAc, core α1,3-fucosylation, sulphation and methylphosphorylation, were detected. …”
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A broad spectrum Shigella vaccine based on VirG53 – 353 multiepitope region produced in a cell-free system by Girmay Desalegn, Charlotte Abrahamson, K. Ross Turbyfill, Lucy Pill-Pepe, Leslie Bautista, Chitradevi S. Tamilselvi, Dylan Dunn, Neeraj Kapoor, Barbara Sullinger, Matheo Herrera, Edwin V. Oaks, Jeff Fairman, Marcela F. Pasetti

“…Seeking to refine the vaccine antigenic target and achieve scalable manufacturing compatible with Good Manufacturing Practices, we mapped linear B-cell epitopes spanning the entire VirG protein sequence by probing the immune reactivity of 10-mer peptides (overlapping 4–8 aa) with sera from Shigella-infected rhesus monkeys. …”
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Phage display as a tool for identifying HIV-1 broadly neutralizing antibodies by A. N. Chikaev, A. P. Rudometov, Yu. A. Merkulyeva, L. I. Karpenko

“…Combinatorial biology methods offer a good solution for targeting interactions of specific molecules by a high-throughput screening and are widely used for drug development, diagnostics, identification of novel monoclonal antibodies, search for linear peptide mimetics of discontinuous epitopes for the development of immunogens or vaccine components. …”
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Development of Virus-Like Particles (VLPs) for Hepatitis C Virus genotype 4: a novel approach for vaccine development in Egypt by Ahmed A. Ali, Rasha A. M. Azouz, Nahla A. Hussein, Reem El-Shenawy, Naiera M. Helmy, Yasmine S. El-Abd, Ashraf A. Tabll

“…The ability of Virus-Like Particles (VLPs) to mimic the native virus and incorporate neutralizing and conformational epitopes, while effectively engaging both humoral and cellular immune responses, makes them a promising approach to addressing the challenges in HCV vaccine development. …”
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Specific immune response to M. tuberculosis and ability to in vitro control mycobacterial replication are not impaired in subjects with immune-mediated inflammatory disease and tub... by Chiara Farroni, Anna Maria Gerarda Altera, Andrea Salmi, Valentina Vanini, Valentina Vanini, Gilda Cuzzi, Cecilia S. Lindestam Arlehamn, Alessandro Sette, Giovanni Delogu, Giovanni Delogu, Ivana Palucci, Settimia Sbarra, Alessandra Aiello, Andrea Picchianti-Diamanti, Gina Gualano, Fabrizio Palmieri, Delia Goletti, Elisa Petruccioli

“…Peripheral blood mononuclear cells (PBMCs) were stimulated with Mtb-derived epitopes (MTB300). By flow-cytometry, we identified the Mtb-specific CD4+ T cells as cytokine-producing T cells or as CD25+ CD134+ CD4+ T cells. …”
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Detection of Dengue Virus-Specific IgM and IgG Antibodies through Peptide Sequences of Envelope and NS1 Proteins for Serological Identification by Pradeep Kumar Nagar, Deepali Savargaonkar, Anupkumar R. Anvikar

“…In this study, linear epitopes of envelope (E) and NS1 proteins were identified to diagnose the DENV. …”
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Construction of prokaryotic system for expression of porcine circovirus type 2 ORF-2 gene fragment by A. G. Galeeva, A. R. Akhunova, K. V. Usoltsev, N. I. Khammadov, M. A. Efimova

“…A genetic insert constructed from the most immunogenic type-specific PCV-2 epitopes based on genotype 2a, 2b, 2d strain and isolate consensus sequence was cloned into the expression vector pET-22b(+) that was incorporated into the Escherichia coli strain Rosetta 2(DE3). …”
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Antibody response to Plasmodium vivax in the context of Epstein-Barr virus (EBV) co-infection: A 14-year follow-up study in the Amazon rainforest. by Luiz F F Guimarães, Bárbara A Rodrigues, Michelle H F Dias, Matheus G Barcelos, Maria F A Nascimento, Sâmick L Moreira-Nascimento, Sofia L Afonso, Barbara G S Abreu, Jaap M Middeldorp, Francis B Ntumngia, John H Adams, Camila Fabbri, Stefanie Lopes, Cor J F Fernandes, Flora S Kano, Luzia H Carvalho

“…The experimental approach focused on monitoring antibodies to the major blood-stage P. vivax vaccine candidate, the Duffy binding protein region II (DBPII-Sal1), including a novel engineered DBPII-based vaccine targeting conserved epitopes (DEKnull-2). In parallel, the status of EBV infection was determined over time by the detection of circulating EBV DNA (EBV-DNAemia) and EBV-specific antibodies to lytic (VCAp18) or latent (EBNA1) antigens. …”
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Negative Association of Gulf War Illness Symptomatology with Predicted Binding Affinity of Anthrax Vaccine Antigen to Human Leukocyte (HLA) Class II Molecules by Lisa M. James, Apostolos P. Georgopoulos

“…Method: Here, we tested this hypothesis by determining the association between severity of GWI symptoms in 458 GW veterans and the overall strength of the binding affinity of the PA epitopes to the specific six Human Leukocyte Antigen (HLA) Class II alleles carried by each individual (two of each of the HLA-II genes: DPB1, DQB1, DRB1), responsible for initiating the process of antibody production in otherwise immunocompetent individuals, estimated in silico. …”
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Cross-protection against homo and heterologous influenza viruses via intranasal administration of an HA chimeric multiepitope nanoparticle vaccine by Yongqiang Zhao, Jia Liu, Chun Peng, Shuangshuang Guo, Bo Wang, Longping Chen, Yating Wang, Haiwen Tang, Liming Liu, Qi Pan, Shiren Li, Jingyu Wang, Dongni Yang, Enqi Du

“…Multiepitope vaccines combining multiple conserved epitopes can induce more robust and broader immune responses and provide a potential solution. …”
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Magnitude and dynamics of the T-cell response to SARS-CoV-2 infection at both individual and population levels by Thomas M. Snyder, Rachel M. Gittelman, Mark Klinger, Damon H. May, Edward J. Osborne, Ruth Taniguchi, H. Jabran Zahid, Ian M. Kaplan, Jennifer N. Dines, Matthew T. Noakes, Ravi Pandya, Xiaoyu Chen, Summer Elasady, Emily Svejnoha, Peter Ebert, Mitchell W. Pesesky, Patricia De Almeida, Hope O’Donnell, Quinn DeGottardi, Gladys Keitany, Jennifer Lu, Allen Vong, Rebecca Elyanow, Paul Fields, Hussein Al-Asadi, Julia Greissl, Lance Baldo, Simona Semprini, Claudio Cerchione, Fabio Nicolini, Massimiliano Mazza, Ottavia M. Delmonte, Kerry Dobbs, Rocio Laguna-Goya, Gonzalo Carreño-Tarragona, Santiago Barrio, Luisa Imberti, Alessandra Sottini, Eugenia Quiros-Roldan, Camillo Rossi, Andrea Biondi, Laura Rachele Bettini, Mariella D’Angio, Paolo Bonfanti, Miranda F. Tompkins, Camille Alba, Clifton Dalgard, Vittorio Sambri, Giovanni Martinelli, Jason D. Goldman, Jason D. Goldman, James R. Heath, Helen C. Su, Luigi D. Notarangelo, Estela Paz-Artal, Joaquin Martinez-Lopez, Bryan Howie, Jonathan M. Carlson, Harlan S. Robins

“…Then, at the population level, we performed T-cell repertoire sequencing on 1,815 samples (from 1,521 COVID-19 subjects) as well as 3,500 controls to identify shared “public” T-cell receptors (TCRs) associated with SARS-CoV-2 infection from both CD8 and CD4 T cells.ResultsCollectively, our data reveal that CD8 T-cell responses are often driven by a few immunodominant, HLA-restricted epitopes. As expected, the T-cell response to SARS-CoV-2 peaks about one to two weeks after infection and is detectable for at least several months after recovery. …”
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The alphavirus determinants of intercellular long extension formation by Caroline K. Martin, Judy J. Wan, Peiqi Yin, Thomas E. Morrison, William B. Messer, Vanessa Rivera-Amill, Jonathan R. Lai, Nina Grau, Félix A. Rey, Thérèse Couderc, Marc Lecuit, Margaret Kielian

“…Here, we used well-characterized virus mutants and monoclonal antibodies with known epitopes to dissect the virus requirements for ILE formation. …”
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Experimental medicine study with stabilised native-like HIV-1 Env immunogens drives long-term antibody responses, but lacks neutralising breadthResearch in context by Katrina M. Pollock, Hannah M. Cheeseman, Leon R. McFarlane, Suzanne Day, Monica Tolazzi, Hannah L. Turner, Jennifer Joypooranachandran, Katsiaryna Shramko, Stefania Dispinseri, Philipp Mundsperger, Ilja Bontjer, Nana-Marie Lemm, Sofia Coelho, Maniola Tanaka, Tom Cole, Bette Korber, Dietmar Katinger, Quentin J. Sattentau, Andrew B. Ward, Gabriella Scarlatti, Rogier W. Sanders, Robin J. Shattock

“…Neutralising antibody function correlated with binding to V1/V3 and V5 epitopes and peaked after the third injection. Interpretation: Rationally designed prefusion-stabilised native-like Env trimers are robustly immunogenic in a prime-boost schedule. …”
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Shed antigen-induced blocking effect on CAR-T cells targeting Glypican-3 in Hepatocellular Carcinoma by Wei Gao, Tong Ding, Beicheng Sun, Nan Li, Fang Gao, Meng Jia, Mitchell Ho, Na Li, Luan Sun, Zhanhui Gao, Lei Ao, Sujuan Ma, Peihua Lu, Shaochang Jia

“…Therefore, it would be worth investigating the potential influence of antigen shedding in anti-GPC3 CAR-T therapy for HCC.Methods In this study, we constructed two types of CAR-T cells targeting distinct epitopes of GPC3 to examine how sGPC3 influences the activation and cytotoxicity of CAR-T cells in vitro and in vivo by introducing sGPC3 positive patient serum or recombinant sGPC3 proteins into HCC cells or by using sGPC3-overexpressing HCC cell lines.Results Both humanized YP7 CAR-T cells and 32A9 CAR-T cells showed GPC3-specific antitumor functions in vitro and in vivo. …”
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TCR-engaging scaffolds selectively expand antigen-specific T-cells with a favorable phenotype for adoptive cell therapy by Marco Donia, Özcan Met, Julie Westerlin Kjeldsen, Sine Reker Hadrup, Inge Marie Svane, Arianna Draghi, Anders Handrup Kverneland, Christina Heeke, Siri Amanda Tvingsholm, Marcus Svensson Frej, Vibeke Mindahl Rafa, Ulla Kring Hansen, Maria Ormhøj, Alexander Tyron, Agnete W P Jensen, Mohammad Kadivar, Amalie Kai Bentzen, Kamilla K Munk, Gitte N Aasbjerg, Jeppe S H Ternander, Tripti Tamhane, Christian Schmess, Samuel A. Funt, Søren Nyboe Jakobsen

“…To generate an ‘off-the-shelf’ multitargeting Ag-scaffold product of relevance to patients with metastatic melanoma, we identified the 30 most frequently recognized shared HLA-A0201-restricted melanoma epitopes in a cohort of 87 patients. By combining these in an Ag-scaffold product, we were able to expand tumor-specific T-cells from 60–70% of patients with melanoma, yielding a multitargeted T-cell product with up to 25% specific and phenotypically and functionally improved T cells.Conclusions Taken together, the Ag-scaffold represents a promising new technology for selective expansion of antigen-specific CD8+ T cells directly from blood, yielding a highly specific and functionally enhanced T-cell product for ACT.…”
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