Results 41 to 50 of about 11,407 (198)

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

Aging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

Fast-tracking antibody maturation using a B cell-based display system

mAbs, 2022
Affinity maturation, an essential component of antibody engineering, is crucial for developing therapeutic antibodies. Cell display system coupled with somatic hypermutation (SHM) initiated by activation-induced cytidine deaminase (AID) is a commonly ...
Hitomi Masuda, Atsushi Sawada, Shu-ichi Hashimoto, Kanako Tamai, Ke-Yi Lin, Naoto Harigai, Kohei Kurosawa, Kunihiro Ohta, Hidetaka Seo, Hiroshi Itou   +9 more
doaj   +1 more source

Optimization of B Cell Responses in Human Immune System Mice Through Organoid Based Screening

Advanced Science, EarlyView.
Human immune system (HIS) mice show limited B cell responses to immunization. Using HIS mouse spleen organoids, this study identifies cytokine combinations and innate immune signals that drive human B cell expansion, differentiation, and class‐switch. Applying these signals in vivo through temporal separation enables antigen‐specific IgG responses and ...
Haiqiao Sun, He Li, Xu Zhu, Zijian Zhang, Deshan Ren, Shuai Ding, Yan Li   +6 more
wiley   +1 more source

Immunoglobulin genes and diversity: what we have learned from domestic animals

Journal of Animal Science and Biotechnology, 2012
This review focuses on the diversity of immunoglobulin (Ig) genes and Ig isotypes that are expressed in domestic animals. Four livestock species—cattle, sheep, pigs, and horses—express a full range of Ig heavy chains (IgHs), including μ, δ, γ, ϵ, and α ...
Sun Yi, Liu Zhancai, Ren Liming, Wei Zhiguo, Wang Ping, Li Ning, Zhao Yaofeng   +6 more
doaj   +1 more source

Learning the statistics and landscape of somatic mutation-induced insertions and deletions in antibodies.

PLoS Computational Biology, 2022
Affinity maturation is crucial for improving the binding affinity of antibodies to antigens. This process is mainly driven by point substitutions caused by somatic hypermutations of the immunoglobulin gene.
Cosimo Lupo, Natanael Spisak, Aleksandra M Walczak, Thierry Mora   +3 more
doaj   +1 more source

SOX5 Orchestrates Malignant Evolution via Promoter‐Centric Chromatin Remodeling in MYC‐Driven B‐Cell Lymphoma

Advanced Science, EarlyView.
In MYC‐enforced B‐cell lymphoma, SOX5 occupies promoter‐proximal regulatory regions and is associated with reduced chromatin accessibility at the PCNP locus. PCNP repression promotes proliferative remodeling by limiting apoptosis and cell‐cycle restraint.
Yiyou Mao, Zhenyuan Jia, Xiao‐Qin Mu, Ruilin Wang, Jianli Ma, Qingyuan Zhang, Yuwei Deng   +6 more
wiley   +1 more source

Canonical Antibodies Adopt Distinct Binding Modes to Recognize Viral Glycan Shields

Advanced Science, EarlyView.
Canonical Y‐shaped antibodies recognize viral glycan shields through adaptive Fab assembly states shaped by glycan organization and somatic hypermutation. Structural analyses ofbroadly neutralizing antibodies VRC35 and VRC36 across glycoproteins of HIV‐1, influenza, SARS‐CoV‐2, and Lassa viruses reveal distinct Fab assembly states, spanning monovalent,
Jiaxuan Cheng, Evan M. Cale, Amirabbas Maghsoudi, Matthew S. Sutton, Nancy S. Longo, Rebecca A. Gillespie, Lingshu Wang, Ivan Kosik, Sue Chong, Atsuhiro Yasuhara, Tatsiana Bylund, Arne Schön, Prabhanshu Tripathi, Yaroslav Tsybovsky, Haotian Lei, Nicholas C. Morano, Allison B. Lupatkin, Abraham J. Morton, Zabrina C. Lang, Jordan E. Becker, Isabella R. Frascilla, Myungjin Lee, Ning Li, Cuiping Liu, Ryan S. Roark, Chen‐Hsiang Shen, I‐Ting Teng, David J. Van Wazer, Danyi Wang, Lingyuan Wu, Goran Ahlsen, Mike Castro, Haijuan Du, Michael J. Ernandes, Tiansheng Li, Bob C. Lin, Mark K. Louder, Krisha McKee, Jonah S. Merriam, Sijy O'Dell, Li Ou, Sergei Pletnev, David Prikryl, Qi Qiu, Sarah Rubin, Mallika Sastry, Stephen D. Schmidt, Asif Shajahan, Andrea R. Shiakolas, Sanjay Srivatsan, Baoshan Zhang, Qiong Zhou, Mark Connors, Jason G. Gall, Yicheng Guo, Rick K. Huang, Yaoxing Huang, Richard A. Koup, Q. Paula Lei, John R. Mascola, Reda Rawi, Leonid Serebryannyy, Lawrence Shapiro, Zizhang Sheng, David D. Ho, Patrick C. Wilson, Jonathan W. Yewdell, Theodore C. Pierson, Masaru Kanekiyo, Nicole A. Doria‐Rose, Peter D. Kwong, Tongqing Zhou   +71 more
wiley   +1 more source

Somatic hypermutation analysis in follicular lymphoma provides evidence suggesting bidirectional cell migration between lymph node and bone marrow during disease progression and relapse

Haematologica, 2013
In follicular lymphoma, somatic hypermutation of the immunoglobulin heavy chain genes facilitates the identification of different lymphoma cell clones, and the construction of genealogical trees.
Martin Wartenberg, Peter Vasil, Christian Meyer zum Bueschenfelde, German Ott, Andreas Rosenwald, Falko Fend, Marcus Kremer   +6 more
doaj   +1 more source

Single‐Cell Level Characterization of B Cell Depletion and Repopulation Following Rituximab in Systemic Lupus Erythematosus

Arthritis &Rheumatology, EarlyView.
Objective Rituximab, a CD20+ B cell depletion therapy, is frequently used to treat systemic lupus erythematosus (SLE). However, variability in patient response highlights the need for a deeper understanding of the underlying immune cell dynamics of B cell depletion and repopulation.
Haerin Jang, Norzawani Buang, Catherine Sutherland, Wanseon Lee, Lauren Overend, Tarran S. Rupall, Katie L. Burnham, Matthew C. Pickering, Marina Botto, Emma E. Davenport   +9 more
wiley   +1 more source

The IgH Eµ-MAR regions promote UNG-dependent error-prone repair to optimize somatic hypermutation

Frontiers in Immunology, 2023
IntoductionTwo scaffold/matrix attachment regions (5’- and 3’-MARsEµ) flank the intronic core enhancer (cEµ) within the immunoglobulin heavy chain locus (IgH).
Ophélie A. Martin, Morgane Thomas, Marie Marquet, Charlotte Bruzeau, Armand Garot, Mylène Brousse, Sébastien Bender, Sébastien Bender, Claire Carrion, Jee Eun Choi, Bao Q. Vuong, Patricia J. Gearhart, Robert W. Maul, Sandrine Le Noir, Eric Pinaud   +14 more
doaj   +1 more source