The information concerning potential effects of somatic hypermutation on bcl-2 sequences translocated to the immunoglobulin heavy chain gene (IgH) locus in follicular lymphoma (FL) is rather limited. We analysed the complete open reading frame (ORF) of the bcl-2 gene for the presence of mutations in 24 bcl-2/IgH-positive diagnostic FL samples by the single strand conformation polymorphism (SSCP) technique. A prior analysis on many of these FL samples had revealed a consistent pattern of somatic hypermutation in IgH genes. Abnormally migrating bands on SSCP gels were identified only in 4/24 samples. This result provides strong support for the notion that in FL the translocated bcl-2 coding region is not targeted by somatic hypermutation.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1080/1042819021000040107 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Atypical memory B cells from natural malaria infection produced broadly neutralizing antibodies against Plasmodium vivax variants.
PLoS Pathog
January 2025
Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand.
Expansion of atypical memory B cells (aMBCs) was demonstrated in malaria-exposed individuals. To date, the generation of P. vivax-specific aMBCs and their function in protective humoral immune responses is unknown.
View Article and Find Full Text PDFTertiary lymphoid structures in colorectal cancer - organization and immune cell interactions.
Am J Clin Exp Immunol
December 2024
Department of Surgery, Medical Faculty, Trakia University Stara Zagora, Bulgria.
Tertiary lymphoid structures (TLS), formerly recognized as Crohn's-like structures, serve as crucial biomarkers for evaluating the progression of colorectal cancer (CRC). Understanding their spatial distribution, cellular composition, and interactions within CRC is paramount for comprehending the immune response in the tumor microenvironment (TME). TLS are comprised of a T-cellular compartment and a B-cellular compartment, the latter encompassing follicular dendritic cells (FDCs), high endothelial venules (HEVs), and lymphatic vessels.
View Article and Find Full Text PDFThe current understanding of humoral immune response in cancer patients suggests that tumors may be infiltrated with diffuse B cells of extra-tumoral origin or may develop organized lymphoid structures, where somatic hypermutation and antigen-driven selection occur locally. These processes are believed to be significantly influenced by the tumor microenvironment through secretory factors and biased cell-cell interactions. To explore the manifestation of this influence, we used deep unbiased immunoglobulin profiling and systematically characterized the relationships between B cells in circulation, draining lymph nodes (draining LNs), and tumors in 14 patients with three human cancers.
View Article and Find Full Text PDF[Clinical significance of molecular classification and hereditary phenotypic characteristics in endometrial carcinoma].
Zhonghua Zhong Liu Za Zhi
January 2025
Department of Pathology, China-Japan Friendship Hospital, Beijing100029, China.
To analyze the clinical significance of molecular classification and hereditary phenotype in endometrial carcinoma (EC) based on high throughput sequencing (NGS). 97 EC samples were collected retrospectively from December 2019 to October 2022 in China-Japan Friendship Hospital. NGS technique was used to analyze the molecular classification, POLE hypermutation, microsatellite high Instability/mismatch repair dysfunction (MSI-H/MMRd), P53 protein abnormality (P53 abn), and non-specific molecular profile (NSMP).
View Article and Find Full Text PDFThe pivotal role of CRIHSP sequences in orchestrating antigen receptor diversity and genomic stability within antigen receptor germline genes.
Int J Biol Macromol
January 2025
Henan Province Engineering Research Center of Innovation for Synthetic Biology, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, 453003, Henan, China; School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453003, Henan, China. Electronic address:
The mechanisms underlying antigen receptor germline gene diversification have always been a topic of intensive study. Here, we discovered that the frequency of stem-loop sequences in the antigen receptor germline gene region is remarkably higher than the genomic background. By analyzing these stem-loop sequences' similarity and distribution patterns, we found that clustered regularly interspaced homologous stem-loop pairs (CRIHSP) are widely present on the germline genes of antigen receptors in different species.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!