The role of chromatin loop extrusion in antibody diversification

Y Zhang, X Zhang, HQ Dai, H Hu, FW Alt - Nature Reviews Immunology, 2022 - nature.com
Cohesin mediates chromatin loop formation across the genome by extruding chromatin
between convergently oriented CTCF-binding elements. Recent studies indicate that …

Genome instability in multiple myeloma: Facts and factors

AY Aksenova, AS Zhuk, AG Lada, IV Zotova… - Cancers, 2021 - mdpi.com
Simple Summary Multiple myeloma is an incurable blood cancer caused by the malignant
transformation of immunoglobulin-producing plasma cells. The mechanisms leading to the …

Contribution of the IGCR1 regulatory element and the 3′Igh CTCF-binding elements to regulation of Igh V(D)J recombination

Z Liang, L Zhao, AY Ye, SG Lin… - Proceedings of the …, 2023 - National Acad Sciences
Immunoglobulin heavy chain variable region exons are assembled in progenitor-B cells,
from VH, D, and JH gene segments located in separate clusters across the Igh locus. RAG …

SHLD1 is dispensable for 53BP1-dependent V (D) J recombination but critical for productive class switch recombination

E Vincendeau, W Wei, X Zhang, C Planchais… - Nature …, 2022 - nature.com
SHLD1 is part of the Shieldin (SHLD) complex, which acts downstream of 53BP1 to
counteract DNA double-strand break (DSB) end resection and promote DNA repair via non …

USP7 promotes IgA class switching through stabilizing RUNX3 for germline transcription activation

B Zhao, Z Xia, B Yang, Y Guo, R Zhou, M Gu, M Liu… - Cell reports, 2024 - cell.com
Class switch recombination (CSR) diversifies the effector functions of antibodies and
involves complex regulation of transcription and DNA damage repair. Here, we show that …

Orientation Regulation of Class-switch Recombination in Human B Cells

L Du, V Oksenych, H Wan, X Ye, J Dong… - The Journal of …, 2024 - journals.aai.org
We developed a linear amplification–mediated high-throughput genome-wide translocation
sequencing method to profile Ig class-switch recombination (CSR) in human B cells in an …

[HTML][HTML] AID function in somatic hypermutation and class switch recombination: AID function in somatic hypermutation and class switch recombination

K Yu - Acta biochimica et biophysica Sinica, 2022 - ncbi.nlm.nih.gov
Activation-induced cytidine deaminase (AID) initiates somatic hypermutation of
immunoglobulin (Ig) gene variable regions and class switch recombination (CSR) of Ig …

Contribution of immunoglobulin enhancers to B cell nuclear organization

C Bruzeau, J Cook-Moreau, E Pinaud… - Frontiers in …, 2022 - frontiersin.org
B cells undergo genetic rearrangements at immunoglobulin gene (Ig) loci during B cell
maturation. First V (D) J recombination occurs during early B cell stages followed by class …

RNA processing mechanisms contribute to genome organization and stability in B cells

E Miglierina, D Ordanoska, S Le Noir, B Laffleur - Oncogene, 2024 - nature.com
RNA processing includes post-transcriptional mechanisms controlling RNA quality and
quantity to ensure cellular homeostasis. Noncoding (nc) RNAs that are regulated by these …

Core enhancers of the 3′RR optimize IgH nuclear position and loop conformation for successful oriented class switch recombination

C Bruzeau, O Martin, J Pollet, M Thomas… - Nucleic Acids …, 2024 - academic.oup.com
In B lymphocytes, class switch recombination (CSR) is an essential process that adapts
immunoglobulin (Ig) subtypes to antigen response. Taking place within the Ig heavy chain …